ncforecaster89 Posted March 14, 2018 Share Posted March 14, 2018 So happy to see/read so many of you cashed in on this event! Personally, drove 19 hours back to Plymouth yesterday morning...after being back home only 36 hours from covering the two previous storms (3/1-10/18). After napping 2 hours, awoke and dressed. At the very moment I was setting up my tripod, a big rumble of thunder (8th or 9th separate event w/ TSSN)! Consequently, just missed capturing it by mere seconds. From there, it was onto Brant Rock in Marshfield to film the surge and blizzard conditions...at the coast. Here's raw and completely unedited visual documentation of the powerful blizzard that hammered the Massachusetts coast, yesterday morning. https://youtu.be/3RqE7jk8R48 3 Link to comment Share on other sites More sharing options...
CoastalWx Posted March 14, 2018 Share Posted March 14, 2018 3 minutes ago, Ginx snewx said: Cocorahs Snowfall is the maximum accumulation of fresh snow during the past day prior to melting or settling. So many rules are vague. I wish they kept it 6 hrs since so many are used to that. Previous records are based on that. 3 Link to comment Share on other sites More sharing options...
rgwp96 Posted March 14, 2018 Share Posted March 14, 2018 6 minutes ago, 40/70 Benchmark said: So much subjectivity...anyway, 24.7" peak depth....31" snowfall. Either way it’s a lot of snow and a great storm 2 Link to comment Share on other sites More sharing options...
Typhoon Tip Posted March 14, 2018 Share Posted March 14, 2018 22 minutes ago, CoastalWx said: So many rules are vague. I wish they kept it 6 hrs since so many are used to that. Previous records are based on that. yeah... like, "...Prior to melting or settling.." ? that's absurd. Like, what about 'sublimation' then - You can't then measure snow ultimately, accurately at all, if it is 32.5 F and S+ because yeah, your accumulating, but you are simultaneously suffering an unknown negation ... Settling? Not much better, because it can snow 30" at 20 F and settle a lot more than 15" at 20, by shear weight... Bottom line, that statement really is horrible when considering the physicality of purpose/cause in the matter. Personally? I think that stuff matters, melting and stettling and sublimating... all of it... when the snow stops, you measure... If the snow pack lost to those on-going negations that's part of the snow event, and cannot - or should not - be uncounted. Link to comment Share on other sites More sharing options...
tamarack Posted March 14, 2018 Share Posted March 14, 2018 1 hour ago, dryslot said: I think i did mine before that even, It was at the Auburn Public Library..........lol Mine was during a similar early "oughts" timeframe, at the Somerset County Extension office in Skowhegan. Can't remember who came up from GYX to present. Since joining cocorahs, I very rarely call in snowfall, as it's easily available anyway, and since severe TS avoid my area consistently I've not bothered the folks at the phones in GYX much. Link to comment Share on other sites More sharing options...
dryslot Posted March 14, 2018 Share Posted March 14, 2018 Just now, tamarack said: Mine was during a similar early "oughts" timeframe, at the Somerset County Extension office in Skowhegan. Can't remember who came up from GYX to present. Neither can I, It might have been John Jensenious if i'm spelling it right. Link to comment Share on other sites More sharing options...
Isotherm Posted March 14, 2018 Share Posted March 14, 2018 8 minutes ago, CoastalWx said: So many rules are vague. I wish they kept it 6 hrs since so many are used to that. Previous records are based on that. Prior to 1998, it was max-depth unless instructed. I think max depth would maintain more congruence w/ historical record. I've previously provided reference to the current NWS guidelines. I checked with the NJ State Climatologist, who specializes in snow cover and was very much involved in the crafting of the guidelines. What he was able to explain to me was that traditionally, the six hour option has only been available to professional observers at airports. However, back in about 1998 the NWS rules were revised and the six hour option was added for Coop observers*. 2 Link to comment Share on other sites More sharing options...
rgwp96 Posted March 14, 2018 Share Posted March 14, 2018 15 minutes ago, Isotherm said: Per the NJ state climatologist: "When things were reconsidered in 2012, the 6-hour option was removed except for "when instructed." Now, I'm not sure of the frequency of this usage, but apparently the 6-hour option is not in use, only when instructed to do so by the NWS (usually airport). Tom it seems Nj removed a report of 31 inches off their report last week because the spotter told them he used the clearing off method. Most areas in my county got 23-25 inches and that town which borders mine came in with 31 . Some questioned it and it was taken off the report . Link to comment Share on other sites More sharing options...
Isotherm Posted March 14, 2018 Share Posted March 14, 2018 2 minutes ago, rgwp96 said: Tom it seems Nj removed a report of 31 inches off their report last week because the spotter told them he used the clearing off method. Most areas in my county got 23-25 inches and that town which borders mine came in with 31 . Some questioned it and it was taken off the report . Correct. This is per Matt G who works with the State Climatologist. "One final thing regarding this past event. We did receive a 31.0" storm total snow report in Kinnelon (Morris County, NJ) that no doubt got at least a little attention, as it would represent, as far as I know, the largest event total in NJ from the storm. I checked in with the observer, and he confirmed that he cleared the board 3 times mid-storm to reduce the effects of compression. Unfortunately, that makes his inflated measurement invalid, at least in the context of the current guidelines (though even with the 6 hour rule, this must have been more like 1 hour clearings), so we've nixed the value. BTW, I'll personally be working on crafting a NJ snowfall map tomorrow based on hundreds of reports received. I post it here when complete." 1 Link to comment Share on other sites More sharing options...
CoastalWx Posted March 14, 2018 Share Posted March 14, 2018 4 minutes ago, Isotherm said: Prior to 1998, it was max-depth unless instructed. I think max depth would maintain more congruence w/ historical record. I've previously provided reference to the current NWS guidelines. I checked with the NJ State Climatologist, who specializes in snow cover and was very much involved in the crafting of the guidelines. What he was able to explain to me was that traditionally, the six hour option has only been available to professional observers at airports. However, back in about 1998 the NWS rules were revised and the six hour option was added for Coop observers*. But now you have two different ways to measure snow. The airports who seem to do every 6 hours, and the COOP guys. Ugh. Link to comment Share on other sites More sharing options...
Isotherm Posted March 14, 2018 Share Posted March 14, 2018 1 minute ago, CoastalWx said: But now you have two different ways to measure snow. The airports who seem to do every 6 hours, and the COOP guys. Ugh. It's definitely a mess now. I'm not sure why there aren't clearer instructions disseminated. Link to comment Share on other sites More sharing options...
donsutherland1 Posted March 14, 2018 Share Posted March 14, 2018 30 minutes ago, weathafella said: Hi Don-thanks as usual for your wonderful insight. For the record, BOS added 0.3 after midnight so Logan is 0.1 away from 1906 and 0.5 from 1960...indeed 1.1 from 1967. Top 3 are big mountains to climb but I think we move into 4th place without much effort. Thanks Jerry. I will post updated numbers later today. Link to comment Share on other sites More sharing options...
eekuasepinniW Posted March 14, 2018 Share Posted March 14, 2018 3 inches overnight for a total of 10" 1 Link to comment Share on other sites More sharing options...
dryslot Posted March 14, 2018 Share Posted March 14, 2018 Storm totals up here and NH 000 NOUS41 KGYX 141543 PNSGYX MEZ007>009-012>014-018>028-NHZ001>015-150343- Public Information Statement Spotter Reports National Weather Service Gray ME 1143 AM EDT Wed Mar 14 2018 The following are unoffical observations taken during the past 36 hours for the storm that has been affecting our region. Appreciation is extended to highway departments...cooperative observers...Skywarn spotters and media for these reports. This summary is also available on our home page at weather.gov/gray ********************STORM TOTAL SNOWFALL******************** LOCATION STORM TOTAL TIME/DATE COMMENTS SNOWFALL OF /INCHES/ MEASUREMENT MAINE ...Androscoggin County... 1 E Livermore Falls 20.0 700 AM 3/14 Contains 1 24-hr ob 4 S Turner 20.0 602 AM 3/14 Trained Spotter Mechanic Falls 19.0 647 AM 3/14 Public 3 E Turner 18.0 700 AM 3/14 Contains 1 24-hr ob Turner 17.0 700 AM 3/14 Contains 1 24-hr ob 2 E Lewiston 16.0 734 AM 3/14 Trained Spotter Lisbon Falls 14.7 715 AM 3/14 Trained Spotter Poland 13.8 700 AM 3/14 Contains 1 24-hr ob Durham 11.2 700 AM 3/14 Contains 1 24-hr ob 2 WNW Auburn 10.0 809 PM 3/13 Trained Spotter ...Cumberland County... Gorham 19.5 941 AM 3/14 Social Media 6 SSW Naples 18.5 900 AM 3/14 Contains 1 24-hr ob Bridgton 18.5 1154 PM 3/13 Social Media 3 NNW Bridgton 18.1 700 AM 3/14 Contains 1 24-hr ob Standish 17.5 720 AM 3/14 Social Media 1 ENE South Windham 17.0 853 AM 3/14 Trained Spotter 1 WSW North Windham 15.4 922 AM 3/14 Trained Spotter 3 SSE Gorham 15.2 924 AM 3/14 Trained Spotter North Sebago 15.0 940 PM 3/13 Trained Spotter Cumberland Center 15.0 1010 AM 3/14 NWS Employee 2 NW Falmouth 14.9 709 AM 3/14 Trained Spotter Brunswick 14.5 533 AM 3/14 Trained Spotter 2 ENE North Windham 14.2 731 AM 3/14 Trained Spotter Portland Jetport 14.0 824 AM 3/14 ASOS 3 WSW Falmouth 13.2 700 AM 3/14 Contains 1 24-hr ob 1 SSW South Gorham 12.5 1109 PM 3/13 Trained Spotter New Gloucester 12.5 808 AM 3/14 Social Media 3 WNW Falmouth 12.0 700 AM 3/14 Contains 1 24-hr ob NWS Gray Office 11.8 800 AM 3/14 Contains 1 24-hr ob Gray NWS Office 11.8 811 AM 3/14 NWS Office 1 SSW Freeport 11.0 630 AM 3/14 Contains 1 24-hr ob 4 WSW New Gloucester 10.5 426 AM 3/14 NWS Employee 2 SSE New Gloucester 10.4 700 AM 3/14 Contains 1 24-hr ob ...Franklin County... Jay 20.0 1001 AM 3/14 Social Media 1 ENE Rangeley 17.0 600 AM 3/14 Contains 1 24-hr ob Farmington 16.5 820 AM 3/14 Co-Op Observer 1 NNW Farmington 16.5 800 AM 3/14 Contains 1 24-hr ob Carrabassett Valley 14.5 723 AM 3/14 Social Media 1 NNW New Sharon 14.0 700 AM 3/14 Contains 1 24-hr ob Eustis 14.0 701 AM 3/14 0.69 melted 9 E New Sharon 14.0 700 AM 3/14 Contains 1 24-hr ob 1 W Temple 12.4 730 AM 3/14 Contains 1 24-hr ob Rangeley 2nw 12.0 600 AM 3/14 Contains 1 24-hr ob ...Kennebec County... Mount Vernon 19.5 824 AM 3/14 Social Media Fayette 17.0 842 AM 3/14 Social Media 2 NNW Sidney 14.3 700 AM 3/14 Contains 1 24-hr ob Palermo 13.0 840 AM 3/14 Trained Spotter ...Knox County... 3 W Union 19.0 705 AM 3/14 Contains 1 24-hr ob 1 SSW Camden 17.4 944 AM 3/14 Trained Spotter Rockland 17.0 827 AM 3/14 Broadcast Media Camden 16.2 648 AM 3/14 Trained Spotter 2 SW Rockport 16.0 900 AM 3/14 Contains 1 24-hr ob 1 SE Appleton 15.8 742 AM 3/14 Trained Spotter 3 NW Union 14.5 730 AM 3/14 Contains 1 24-hr ob 1 N Union 14.0 700 AM 3/14 Contains 1 24-hr ob Hope 12.0 745 AM 3/14 Trained Spotter ...Lincoln County... 1 WNW Boothbay 17.0 700 AM 3/14 Contains 1 24-hr ob Westport 16.5 800 AM 3/14 Contains 1 24-hr ob Jefferson 15.5 849 AM 3/14 Trained Spotter 1 NE Waldoboro 14.5 730 AM 3/14 Contains 1 24-hr ob 1 WSW Newcastle 13.5 700 AM 3/14 Contains 1 24-hr ob 3 SSW South Bristol 12.0 845 AM 3/14 Trained Spotter Nobleboro 12.0 804 AM 3/14 Amateur Radio ...Oxford County... South Paris 24.0 816 AM 3/14 Social Media Bryant Pond 22.0 927 AM 3/14 Social Media Paris 21.0 720 AM 3/14 Social Media 1 W Otisfield 20.5 859 AM 3/14 Trained Spotter Kezar Falls 20.0 627 PM 3/13 Social Media 6 SSE Bethel 18.5 717 AM 3/14 Contains 1 24-hr ob Buckfield 18.0 721 AM 3/14 Social Media Otisfield 17.5 546 AM 3/14 NWS Employee Hartford 17.0 730 AM 3/14 Social Media Peru 16.0 831 AM 3/14 Social Media 1 N Hartford 15.5 700 AM 3/14 Contains 1 24-hr ob 4 WSW Turner 13.5 622 AM 3/14 Trained Spotter Newry 13.5 709 AM 3/14 Trained Spotter 1 W West Minot 12.5 757 PM 3/13 Trained Spotter Hebron 12.0 523 AM 3/14 Trained Spotter ...Sagadahoc County... 2 NW Bath 15.0 700 AM 3/14 Contains 1 24-hr ob 2 WNW Bath 15.0 700 AM 3/14 Contains 1 24-hr ob Bath 12.0 742 AM 3/14 Social Media 3 SSE Bowdoinham 11.0 700 AM 3/14 Contains 1 24-hr ob ...Somerset County... Brassua Lake 17.5 700 AM 3/14 Contains 1 24-hr ob Moosehead Lake 15.0 700 AM 3/14 Contains 1 24-hr ob 1 ESE Hartland 15.0 700 AM 3/14 Contains 1 24-hr ob Harmony 14.0 700 AM 3/14 Contains 1 24-hr ob 4 ESE Solon 12.0 700 AM 3/14 Contains 1 24-hr ob Skowhegan 12.0 638 AM 3/14 Trained Spotter 2 SSW Harmony 10.5 830 AM 3/14 Contains 1 24-hr ob 4 ENE New Portland 10.0 700 AM 3/14 Contains 1 24-hr ob Jackman 8.0 700 AM 3/14 Contains 1 24-hr ob ...Waldo County... Winterport 22.0 834 AM 3/14 Social Media 2 NNW Belfast 20.0 1109 AM 3/14 Trained Spotter 2 WNW Jackson 19.5 842 AM 3/14 Trained Spotter 3 ENE Searsmont 19.0 600 AM 3/14 Contains 1 24-hr ob 2 W Prospect 18.0 700 AM 3/14 Contains 1 24-hr ob 2 SSW Orrington 17.3 700 AM 3/14 Contains 1 24-hr ob Belmont Corner 15.0 1026 PM 3/13 Trained Spotter 2 N Knox 14.7 653 AM 3/14 Trained Spotter Lincolnville 13.0 800 AM 3/14 Trained Spotter 4 WNW Searsmont 11.5 730 AM 3/14 Contains 1 24-hr ob ...York County... Acton 26.0 842 AM 3/14 Social Media 3 NNE Limington 24.2 700 AM 3/14 Contains 1 24-hr ob Sanford 24.0 951 PM 3/13 Social Media 3 SW West Newfield 23.5 544 AM 3/14 Trained Spotter Limerick 23.5 514 AM 3/14 Trained Spotter 4 W West Buxton 22.2 700 AM 3/14 Contains 1 24-hr ob 5 WNW Hollis 22.2 700 AM 3/14 Contains 1 24-hr ob 4 NE Shapleigh 22.0 652 AM 3/14 Trained Spotter Berwick 22.0 1125 AM 3/14 Social Media 2 NW Acton 21.1 530 AM 3/14 Contains 1 24-hr ob 2 WSW Shady Nook 21.0 825 PM 3/13 Trained Spotter Saco 20.0 822 AM 3/14 Social Media 3 SSE Kezar Falls 19.0 900 AM 3/14 Contains 1 24-hr ob Waterboro 19.0 852 PM 3/13 Trained Spotter Shapleigh 19.0 905 PM 3/13 Social Media 2 NNW Ruin Corner 18.2 904 PM 3/13 Trained Spotter 1 WSW Kittery 18.0 803 AM 3/14 Trained Spotter Parsonsfield 18.0 432 PM 3/13 Social Media Biddeford 18.0 755 AM 3/14 Social Media 1 WNW Kennebunk 17.0 700 AM 3/14 Contains 1 24-hr ob 3 NNW Saco 16.5 840 AM 3/14 Social Media 2 NE Berwick 16.4 700 AM 3/14 Contains 2 24-hr obs Kennebunk 16.0 914 AM 3/14 Social Media Buxton 16.0 942 AM 3/14 Social Media 3 NE Milton 16.0 459 PM 3/13 Social Media 4 SW Wells 16.0 700 AM 3/14 Contains 1 24-hr ob 1 SSW Cornish 16.0 804 PM 3/13 Trained Spotter Cape Neddick 15.8 719 AM 3/14 Social Media 3 WSW Steep Falls 14.5 805 PM 3/13 Trained Spotter 1 WSW Ogunquit 14.4 700 AM 3/14 Contains 1 24-hr ob 2 NE Kennebunk 12.4 541 AM 3/14 Trained Spotter Bartlett Mills 11.6 1032 PM 3/13 Trained Spotter 1 ESE Biddeford 11.5 700 AM 3/14 Contains 1 24-hr ob 2 NNW Saco 10.5 840 PM 3/13 Trained Spotter 1 ESE Ross Corner 10.0 252 PM 3/13 Trained Spotter NEW HAMPSHIRE ...Belknap County... Gilmanton 18.5 743 AM 3/14 Social Media 1 WSW Belmont 17.8 700 AM 3/14 Contains 2 24-hr obs 1 ESE Sanbornton 15.8 700 AM 3/14 Contains 2 24-hr obs 1 WNW Lochmere 15.8 749 AM 3/14 Trained Spotter 4 E Gilford 14.5 730 AM 3/14 Contains 1 24-hr ob Lakeport 14.0 700 AM 3/14 Contains 1 24-hr ob 2 W Sanbornton 12.8 707 AM 3/14 Contains 2 24-hr obs Sanbornton 12.8 857 AM 3/14 Social Media 2 SW Meredith 10.1 645 AM 3/14 Contains 1 24-hr ob 3 NNE Meredith 9.0 1200 AM 3/14 Contains 1 24-hr ob 2 SSW Ashland 8.2 700 AM 3/14 Contains 1 24-hr ob ...Carroll County... Wakefield 24.5 826 AM 3/14 Social Media Tuftonboro 24.0 858 PM 3/13 Social Media Wolfeboro 24.0 813 AM 3/14 Trained Spotter Wolfeboro Bay 22.4 847 AM 3/14 Trained Spotter Union 21.0 623 PM 3/13 Social Media Brookfield 20.0 735 PM 3/13 Social Media Freedom 16.0 942 PM 3/13 Social Media 1 SE Madison 15.3 700 AM 3/14 Contains 1 24-hr ob Ossipee 15.0 520 PM 3/13 Social Media 3 ENE Sandwich 11.5 630 AM 3/14 Contains 1 24-hr ob 1 N Madison 11.5 1152 PM 3/13 Trained Spotter Conway 11.0 808 PM 3/13 Social Media 4 ESE Center Harbor 11.0 600 AM 3/14 Trained Spotter 1 SW North Conway 9.0 700 AM 3/14 Contains 1 24-hr ob 3 SW Albany 8.6 800 AM 3/14 Contains 1 24-hr ob North Conway 8.2 800 AM 3/14 Contains 1 24-hr ob 3 NW Jackson 8.0 700 AM 3/14 Contains 1 24-hr ob ...Cheshire County... 6 ESE Alstead 16.6 806 AM 3/14 Trained Spotter 3 ESE Rindge 16.0 700 AM 3/14 Contains 1 24-hr ob 1 SE East Alstead 14.0 1127 PM 3/13 Trained Spotter 2 S Rindge 12.4 849 AM 3/14 Social Media Otter Brook Lake 10.8 700 AM 3/14 Contains 2 24-hr obs Swanzey 8.0 644 AM 3/14 Amateur Radio 2 NNW Keene 7.8 600 AM 3/14 Contains 2 24-hr obs Marlborough 7.0 425 PM 3/13 Social Media Surry Mountain Lake 6.0 700 AM 3/14 Contains 1 24-hr ob Keene 6.0 600 AM 3/14 Contains 2 24-hr obs WNW West Chesterfiel 4.6 700 AM 3/14 Contains 2 24-hr obs ...Coos County... 1 W Jefferson 19.0 700 AM 3/14 Contains 1 24-hr ob Berlin 13.0 719 AM 3/14 Contains 1 24-hr ob Lancaster 12.3 538 AM 3/14 Trained Spotter Whitefield 12.0 958 AM 3/14 Trained Spotter Milan 12.0 735 AM 3/14 Social Media 1 E Starr King 11.5 307 AM 3/14 Trained Spotter 1 NE Randolph 11.5 700 AM 3/14 Contains 1 24-hr ob North Stratford 7.5 800 AM 3/14 Contains 1 24-hr ob 6 NE Pittsburg 7.0 700 AM 3/14 Contains 1 24-hr ob Colebrook 5.5 600 AM 3/14 Contains 1 24-hr ob Pittsburg 5.0 913 PM 3/13 Trained Spotter First Connecticut La 5.0 700 AM 3/14 Contains 1 24-hr ob ...Grafton County... 3 ENE Sugar Hill 13.6 655 AM 3/14 Contains 1 24-hr ob 1 SSE Rumney 10.0 813 PM 3/13 Social Media 1 NNW Bristol 8.3 802 AM 3/14 Trained Spotter Bristol 8.3 700 AM 3/14 Contains 2 24-hr obs Plymouth 8.0 800 AM 3/14 Contains 1 24-hr ob ...Hillsborough County... Hudson 1sse 26.3 700 AM 3/14 Contains 2 24-hr obs Merrimack 23.0 727 PM 3/13 Trained Spotter Manchester 23.0 722 PM 3/13 Social Media Goffstown 22.0 902 PM 3/13 Social Media 4 SSE Hudson 22.0 825 AM 3/14 Trained Spotter 3 NNW Merrimack 20.1 845 AM 3/14 Trained Spotter Hudson 19.5 447 PM 3/13 Co-Op Observer 1 E Nashua 18.0 646 AM 3/14 Trained Spotter Nashua 17.7 758 AM 3/14 At the Nashua CWSU. 2 SW Brookline 16.0 930 AM 3/14 Contains 1 24-hr ob 2 NW Reeds Ferry 15.5 359 PM 3/13 Trained Spotter Milford 15.0 730 AM 3/14 Contains 1 24-hr ob East Milford 14.4 730 AM 3/14 Contains 2 24-hr obs Bedford 13.5 302 PM 3/13 Social Media 3 SW Merrimack 12.0 703 PM 3/13 Trained Spotter 2 W Bennington 11.0 816 AM 3/14 Social Media 4 SW Milford 11.0 819 AM 3/14 Social Media 4 SE Weare 10.5 703 PM 3/13 Trained Spotter 2 S New Ipswich 10.1 528 PM 3/13 Trained Spotter 2 S New Boston 10.0 319 PM 3/13 Trained Spotter ...Merrimack County... Pembroke 25.0 837 AM 3/14 Social Media Epsom 23.0 734 PM 3/13 Social Media 3 S Bow 20.5 600 AM 3/14 Contains 2 24-hr obs Concord ASOS 17.1 718 AM 3/14 ASOS 2 SSW Chichester 17.0 310 AM 3/14 Contains 1 24-hr ob Pittsfield 17.0 700 AM 3/14 Contains 2 24-hr obs 2 E Tilton 15.5 527 AM 3/14 Contains 1 24-hr ob Bow 15.2 532 PM 3/13 8" in 3 Hours 1 NNW Bow 15.2 700 AM 3/14 Contains 2 24-hr obs 1 WNW Newbury 13.9 700 AM 3/14 Contains 2 24-hr obs 1 W Concord 13.0 802 AM 3/14 Social Media 2 ESE Boscawen 12.5 715 AM 3/14 Contains 2 24-hr obs Penacook 11.7 735 AM 3/14 Trained Spotter 2 SSE Boscawen 11.7 700 AM 3/14 Contains 2 24-hr obs Concord 11.0 612 PM 3/13 Social Media 1 SE Concord 10.2 709 AM 3/14 Contains 2 24-hr obs 2 ENE Bradford 9.2 700 AM 3/14 Contains 2 24-hr obs 1 E New London 9.1 700 AM 3/14 Contains 2 24-hr obs 1 SSE Henniker 8.8 838 AM 3/14 Trained Spotter West Hopkinton 8.0 700 AM 3/14 Contains 1 24-hr ob ...Rockingham County... 3 WSW Deerfield 28.6 700 AM 3/14 Contains 2 24-hr obs Danville 27.0 726 AM 3/14 Social Media Raymond 27.0 859 PM 3/13 Social Media Northwood 27.0 845 PM 3/13 Social Media 1 NNE Deerfield 27.0 808 AM 3/14 Trained Spotter Derry 26.8 1012 AM 3/14 Social Media Atkinson 26.5 859 PM 3/13 Social Media West Hampstead 26.2 800 AM 3/14 Contains 2 24-hr obs Windham 25.5 744 AM 3/14 Social Media Salem 25.0 838 AM 3/14 Social Media Hampstead 25.0 823 PM 3/13 Social Media 4 NNW Derry 25.0 605 PM 3/13 Trained Spotter North Londonderry 24.0 858 PM 3/13 Amateur Radio 1 NW Chester 23.0 700 PM 3/13 Contains 1 24-hr ob 1 E Auburn 23.0 700 AM 3/14 Contains 2 24-hr obs Fremont 23.0 930 PM 3/13 Trained Spotter 2 N East Kingston 22.9 705 AM 3/14 Contains 2 24-hr obs 4 ESE Epsom 22.5 700 AM 3/14 Contains 2 24-hr obs Exeter 22.5 843 AM 3/14 Social Media 1 WSW Epping 22.0 700 AM 3/14 Contains 2 24-hr obs 1 ESE East Derry 22.0 615 PM 3/13 Trained Spotter 1 NNE Hampstead 21.4 700 AM 3/14 Contains 2 24-hr obs Candia 21.0 423 PM 3/13 Social Media 2 ENE Bear Brook Sta 20.5 643 PM 3/13 Trained Spotter Londonderry 20.0 720 PM 3/13 Social Media 1 ESE Exeter 19.0 700 AM 3/14 Contains 1 24-hr ob 2 NE Kingston 18.4 823 PM 3/13 Trained Spotter Greenland 18.0 621 AM 3/14 Trained Spotter 2 ENE Stratham 17.0 631 AM 3/14 Trained Spotter 2 WSW North Hampton 16.0 949 AM 3/14 Trained Spotter 1 NNW Hampton 16.0 621 AM 3/14 Trained Spotter Sandown 15.0 530 PM 3/13 Amateur Radio 1 SW Bayside 15.0 845 PM 3/13 Trained Spotter 2 E Brentwood 14.5 501 PM 3/13 Trained Spotter 1 ESE Stratham 14.0 630 AM 3/14 Contains 1 24-hr ob 1 WNW Greenland 13.4 700 AM 3/14 Contains 2 24-hr obs Hampton 13.3 932 PM 3/13 Trained Spotter 1 ESE North Hampton 13.0 947 AM 3/14 Trained Spotter 1 ENE Fogg Corner 11.0 813 PM 3/13 Trained Spotter 2 WSW Marshall Corne 10.5 229 PM 3/13 Trained Spotter ...Strafford County... Middleton 28.0 1127 AM 3/14 Social Media 1 SSE Rochester 25.5 557 AM 3/14 Trained Spotter Lee 25.5 759 AM 3/14 NWS Employee 2 ESE Strafford 24.5 800 AM 3/14 Contains 2 24-hr obs Dover 24.0 943 AM 3/14 Social Media Milton 22.3 916 PM 3/13 Social Media 3 E Barrington 21.6 730 AM 3/14 Contains 2 24-hr obs Farmington 21.5 927 PM 3/13 Social Media 1 NE West Gonic 21.2 916 PM 3/13 Trained Spotter 2 SSE Strafford 18.0 724 AM 3/14 Trained Spotter 1 WSW Rollinsford 16.0 700 AM 3/14 Contains 1 24-hr ob Rochester 15.0 436 PM 3/13 Social Media Foundry 14.0 758 PM 3/13 Trained Spotter Barrington 12.0 648 PM 3/13 Amateur Radio ...Sullivan County... 1 ESE Washington 18.0 755 AM 3/14 Trained Spotter Sunapee 13.0 856 AM 3/14 Trained Spotter && Link to comment Share on other sites More sharing options...
ORH_wxman Posted March 14, 2018 Share Posted March 14, 2018 6 minutes ago, CoastalWx said: But now you have two different ways to measure snow. The airports who seem to do every 6 hours, and the COOP guys. Ugh. Airports have 6 hour measurements going back to the 1940s even...though not all of them did. The 6 hour clearing method will probably be more accurate in the long run than a coop who only sticks a ruler in the ground at 7am every morning. You lose way too much snow in the latter. Most NWS people I have talked to don't enforce the changes because they are pretty subjective and sometimes impractical. Besides, there is the subjective element of "when instructed"...and the NWS people can just say they instruct them to continue measuring with 6 hour increments. What is the point now of having a homogeneous record broken if someone has been measuring snow for a decade using the clearing method? Only in storms that have a big fluff band will the differences be really obvious anyway. Link to comment Share on other sites More sharing options...
CapturedNature Posted March 14, 2018 Share Posted March 14, 2018 17 minutes ago, CoastalWx said: So many rules are vague. I wish they kept it 6 hrs since so many are used to that. Previous records are based on that. That's the same argument I recall back in the 90s when this "standard" came into being. Many of us argued that it would be impossible to compare systems from the past due to different measuring standards. I, for one, started keeping records with the current standard and never adopted sweeping and measuring every 6 hours specifically so I could compare one storm with another. Likewise, I can compare with anyone else that measures at the end of snowfall. Personally, I think it should never have been implemented but that ship has long sailed and we have a mix now. Link to comment Share on other sites More sharing options...
Isotherm Posted March 14, 2018 Share Posted March 14, 2018 2 minutes ago, ORH_wxman said: Airports have 6 hour measurements going back to the 1940s even...though not all of them did. The 6 hour clearing method will probably be more accurate in the long run than a coop who only sticks a ruler in the ground at 7am every morning. You lose way too much snow in the latter. Most NWS people I have talked to don't enforce the changes because they are pretty subjective and sometimes impractical. Besides, there is the subjective element of "when instructed"...and the NWS people can just say they instruct them to continue measuring with 6 hour increments. What is the point now of having a homogeneous record broken if someone has been measuring snow for a decade using the clearing method? Only in storms that have a big fluff band will the differences be really obvious anyway. Agree, and I'd argue the once per day observation is the least accurate of all for sure. The clearing/vs maximum depth should be fairly similar in most storms that aren't > 32F at the surface. 1 Link to comment Share on other sites More sharing options...
Isotherm Posted March 14, 2018 Share Posted March 14, 2018 1 minute ago, MetHerb said: That's the same argument I recall back in the 90s when this "standard" came into being. Many of us argued that it would be impossible to compare systems from the past due to different measuring standards. I, for one, started keeping records with the current standard and never adopted sweeping and measuring every 6 hours specifically so I could compare one storm with another. Likewise, I can compare with anyone else that measures at the end of snowfall. Personally, I think it should never have been implemented but that ship has long sailed and we have a mix now. I concur with this too, I think they should have maintained the maximum depth standard. 1 Link to comment Share on other sites More sharing options...
Ginx snewx Posted March 14, 2018 Share Posted March 14, 2018 Powers back it's dumping tree snow and ice and it friggin hurts lol. Never thought I would be chopping ice for the first time all winter Link to comment Share on other sites More sharing options...
tamarack Posted March 14, 2018 Share Posted March 14, 2018 42 minutes ago, Isotherm said: Just as an FYI, the latest NWS/COOP guidelines for measuring snowfall are to take the maximum accumulation of new snow in a 24 hour period. The 6 hour clearing method is no longer in effect, unless specifically instructed to by a NWS office (airports sometimes). One final thing regarding this past event. We did receive a 31.0" storm total snow report in Kinnelon (Morris County, NJ) that no doubt got at least a little attention, as it would represent, as far as I know, the largest event total in NJ from the storm. I checked in with the observer, and he confirmed that he cleared the board 3 times mid-storm to reduce the effects of compression. Unfortunately, that makes his inflated measurement invalid, at least in the context of the current guidelines (though even with the 6 hour rule, this must have been more like 1 hour clearings), so we've nixed the value. BTW, I'll personally be working on crafting a NJ snowfall map tomorrow based on hundreds of reports received. I post it here when complete. Wow! A shout-out to my old home town - lived there 1950-71. Wonder if that reading came from the Smoke Rise section, which includes the town's highest elevations. (We lived near West Fayson Lake @ 700'.) Anyway, an excellent discussion - thanks. I've been recording my wx obs at 9 PM since 1/1/76, and continued to do so after joining cocorahs in 8/09. So my board-clearings come at those 2 times. (For the current storm it was 9.0" at 9 PM and 5.0" at 7 AM, and for this time at least, the gain in depth - 23" to 37" - was equal to the sum of the 2 measurements.) 1 Link to comment Share on other sites More sharing options...
CapturedNature Posted March 14, 2018 Share Posted March 14, 2018 3 minutes ago, ORH_wxman said: Airports have 6 hour measurements going back to the 1940s even...though not all of them did. The 6 hour clearing method will probably be more accurate in the long run than a coop who only sticks a ruler in the ground at 7am every morning. You lose way too much snow in the latter. Most NWS people I have talked to don't enforce the changes because they are pretty subjective and sometimes impractical. Besides, there is the subjective element of "when instructed"...and the NWS people can just say they instruct them to continue measuring with 6 hour increments. What is the point now of having a homogeneous record broken if someone has been measuring snow for a decade using the clearing method? Only in storms that have a big fluff band will the differences be really obvious anyway. I guess most co-ops these days do that but when I was a co-op observer I always measured at the end of the snowfall. I believe the guy in Staffordville does that but some of his totals baffle me as too high since we are so closer. I honestly feel like his gets snow blown off the lake when that happens...lol. Your point about a homogeneous record is why I did not support the adoption of the method but for those that have been doing it for nearly 20 years should continue to do so. For me personally, I stuck with the old method for just such as reason. Link to comment Share on other sites More sharing options...
Typhoon Tip Posted March 14, 2018 Share Posted March 14, 2018 10 minutes ago, ORH_wxman said: Airports have 6 hour measurements going back to the 1940s even...though not all of them did. The 6 hour clearing method will probably be more accurate in the long run than a coop who only sticks a ruler in the ground at 7am every morning. You lose way too much snow in the latter. Most NWS people I have talked to don't enforce the changes because they are pretty subjective and sometimes impractical. Besides, there is the subjective element of "when instructed"...and the NWS people can just say they instruct them to continue measuring with 6 hour increments. What is the point now of having a homogeneous record broken if someone has been measuring snow for a decade using the clearing method? Only in storms that have a big fluff band will the differences be really obvious anyway. I agree...that 24 hours is too long to wait, particularly if it snows for 6 hours and one intends to/has to wait 18 hours for that measurement. However, I suggest that when the snow stops, and it is systemically clear that it's really the end of the event, then the measurement is taken. However, during the event, I disagree (if perhaps this is a strawman argument) that 6-hour clear should be done, because as I was just describing, storm circumstancial melting/settling/or even sublimation - though that would rarefied, should be considered part of the event. 1 Link to comment Share on other sites More sharing options...
CoolMike Posted March 14, 2018 Share Posted March 14, 2018 1 minute ago, Ginx snewx said: Powers back it's dumping tree snow and ice and it friggin hurts lol. Never thought I would be chopping ice for the first time all winter That's weird because I spent more time chopping ice this year than any other year since I bought my first home (2011). It seemed like after the big January storm every other storm for me was a kitchen sink / rain-ice-snow-ice-rain storm. The last few weeks have been great though! Big windy rain storm followed immediately by two huge snowstorms have been fun for me. Link to comment Share on other sites More sharing options...
Ginx snewx Posted March 14, 2018 Share Posted March 14, 2018 It is beautiful out here though 3 Link to comment Share on other sites More sharing options...
OceanStWx Posted March 14, 2018 Share Posted March 14, 2018 42 minutes ago, CoastalWx said: I thought OceanSt was saying many first order stations clear the board or what have you, every 6 hrs. And what the heck defines intermediate depth measurements? every hr? every 6 hrs? I know up here we have 5 climate sites. PWM and CON have paid observers measuring every 6 hours, GYX obviously is staffed round the clock and does 6 hour measurements, and MHT as far as I know reports their 24 max snowfall at midnight (AUG doesn't have snow obs ) Link to comment Share on other sites More sharing options...
bobbutts Posted March 14, 2018 Share Posted March 14, 2018 Should be a clear standard for this. I'm a fan of the ruler in the snow at the end of the storm, but that is clearly not ideal for long duration or major snowstorms. I feel like adding a disclaimer that my measurements are for entertainment purposes only. 1 Link to comment Share on other sites More sharing options...
OceanStWx Posted March 14, 2018 Share Posted March 14, 2018 Most offices are going to have at least two airports measuring every 6 hours, to keep consistent with old WSO stations (like PWM and CON, BOS/BDL/ORH/PVD, etc). Link to comment Share on other sites More sharing options...
OceanStWx Posted March 14, 2018 Share Posted March 14, 2018 Obviously the big issue is melt/compaction with the once a day measurement. If you aren't checking for the max depth, you are likely to miss it. If you work from home it's easier to check frequently. But say it snows in the morning, you head to work, it stops at lunchtime, you come home, sleep, get up and measure at 7 AM the next day and the whole time temps were around freezing. You could "lose" a bunch of snow in that case. This is why our spotter training focuses mainly on snow (sorry @weatherwiz) Link to comment Share on other sites More sharing options...
weatherwiz Posted March 14, 2018 Share Posted March 14, 2018 4 minutes ago, OceanStWx said: Obviously the big issue is melt/compaction with the once a day measurement. If you aren't checking for the max depth, you are likely to miss it. If you work from home it's easier to check frequently. But say it snows in the morning, you head to work, it stops at lunchtime, you come home, sleep, get up and measure at 7 AM the next day and the whole time temps were around freezing. You could "lose" a bunch of snow in that case. This is why our spotter training focuses mainly on snow (sorry @weatherwiz) Link to comment Share on other sites More sharing options...
MarkO Posted March 14, 2018 Share Posted March 14, 2018 The controversy regarding Ray's 31" was just on the news (ch 7). 2 Link to comment Share on other sites More sharing options...
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