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Jan 22-24 blizzard obs, tracking, nowcasting #2


Ian

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 District of Columbia

...District of Columbia...
1 Se Anacostia 18.0 8 a.m.  1/23 
2 N Us Capitol 16.0 10:51 a.m.  1/23 
Georgetown 14.0 10:10 a.m.  1/23 
1 Nne The White Hous 12.2 5 a.m. 1/23 

 

Maryland

...Allegany County...
1 Nw Ridgeley 26.0 10:04 a.m. 1/23 
La Vale 22.0 7:40 a.m.1/23 
1 S Eckhart Mines 22.0 10:29 a.m.1/23 
Westernport 21.5 8:03 a.m. 1/23 
1 E Wolfe Mill 20.0 9:46 a.m. 1/23 
Cumberland 17.4 7:40 a.m.1/23 
1 W North Branch 16.5 7 a.m.1/23 

 

...Anne Arundel County...
1 N Ridgeway 18.0 9:30 a.m.1/23 
1 Se Green Haven 14.5 7 a.m.1/23 
3 N Dunkirk 13.5 9:17 a.m.1/23 
Severna Park 13.3 5 a.m.1/23 
BWI Airport 12.4 7 a.m.1/23 
1 Ssw South Gate 12.3 5 a.m.1/23 
1 Ene Churchton 10.5 10 a.m. 1/23 

...Baltimore County...
Reisterstown 17.4 7:30 Am 1/23 
1 Wsw Glyndon 17.2 8:23 Am 1/23  
2 Ne Jacksonville 17.0 7:52 Am 1/23
1 Se Cockeysville 17.0 10:45 Am 1/23 
Pikesville 15.5 10:07 Am 1/23 
1 Wnw Perry Hall 15.5 7:30 Am 1/23 
1 Nne Upper Falls 14.5 10 a.m. 1/23 
1 E Oella 13.5 715 a.m.1/23 
1 Ene Randallstown 13.5 7 a.m.1/23  
Essex 13.5 10:15 a.m.1/23 
Jacksonville 13.5 9:11 a.m.1/23  
1 E Bentley Springs 13.0 6:30 a.m.1/23 

 

...Baltimore City...
2 Ese Arlington 14.0 9:44 a.m.1/23 
2 E Arlington 13.0 7:58 a.m.1/23 
2 Ese Arlington 12.5 7:14 a.m.1/23 
Pimlico 12.0 7:40 a.m.1/23
1 W Morrell Park 11.0 8:47 a.m. 1/23 

...Calvert County...
North Beach 11.0 7:55 a.m.1/23 
1 Se Owings 9.0 6 a.m. 1/23

 

...Carroll County...
4 Wsw Reese 24.2 1008 Am 1/23 Trained Spotter 
Westminster 19.0 953 Am 1/23 Public 
3 Nnw Gaither 19.0 931 Am 1/23 Trained Spotter 
3 Wsw Lineboro 17.4 910 Am 1/23 Trained Spotter 
2 E Lineboro 17.0 924 Am 1/23 Trained Spotter 
4 Nne Uniontown 10.8 530 Am 1/23 Trained Spotter

...Charles County...
2 W Waldorf 13.1 636 Am 1/23 Trained Spotter 
2 W Aquasco 11.5 913 Am 1/23 Trained Spotter 
La Plata 11.5 909 Am 1/23 Trained Spotter 
St. Charles 11.0 805 Am 1/23 Wind Blown 
1 Nw Wicomico 10.5 1036 Am 1/23 Trained Spotter 
3 Wnw Dentsville 9.5 600 Am 1/23 Trained Spotter

 

...Frederick County...
Rosemont 23.0 927 Am 1/23 Trained Spotter 
Rosemont 20.0 743 Am 1/23 Public 
1 Nnw Ballenger Cree 19.2 700 Am 1/23 Cocorahs 
2 Se Jefferson 18.8 725 Am 1/23 Trained Spotter 
New Market 18.0 700 Am 1/23 Trained Spotter 
Frederick 17.5 630 Am 1/23 County Emrg Mgmt 
1 E Walkersville 17.5 825 Am 1/23 Cocorahs 
3 Nw Frederick 17.2 600 Am 1/23 Nws Employee 
2 Ene Frederick 16.8 919 Am 1/23 Trained Spotter 
1 Ssw Ijamsville 16.5 700 Am 1/23 Nws Employee 
1 Ne Ballenger Creek 16.0 850 Am 1/23 Trained Spotter 
Jefferson 15.0 630 Am 1/23 Public 
Ijamsville 14.5 630 Am 1/23 Public 
Woodsboro 14.0 630 Am 1/23 Public 
2 Nnw Bolivar 13.5 700 Am 1/23 Trained Spotter 
Thurmont 13.0 630 Am 1/23 Public 
Myersville 12.0 630 Am 1/23 Public

...Harford County...
1 Wsw Norrisville 17.9 1022 Am 1/23 Cocorahs 
2 E Norrisville 17.5 1030 Am 1/23 Trained Spotter 
Norrisville 17.5 1048 Am 1/23 County Emrg Mgmt 
1 Wsw Magnolia 17.0 752 Am 1/23 Trained Spotter 
2 E Bel Air 14.0 752 Am 1/23 Trained Spotter 
1 Nne Bel Air 14.0 1039 Am 1/23 Trained Spotter 
1 Nne Bel Air 12.2 655 Am 1/23 Trained Spotter

 

...Howard County...
Columbia 17.0 834 Am 1/23 Public 
2 Ese Roxbury Mills 17.0 830 Am 1/23 Trained Spotter 
2 Sw Woodstock 16.4 831 Am 1/23 Trained Spotter 
2 N Columbia 15.5 700 Am 1/23 Nws Employee 
2 Se Gaither 15.5 700 Am 1/23 Cocorahs 
1 Wsw Savage 15.5 718 Am 1/23 Trained Spotter 
2 Nw Columbia 14.0 848 Am 1/23 Trained Spotter 
2 W Elkridge 13.8 620 Am 1/23 Trained Spotter 
1 Sse Simpsonville 13.6 600 Am 1/23 Mostly Sleet Since 5 Am 
Elkridge 13.0 720 Am 1/23 Public 
2 Wsw Elkridge 12.5 745 Am 1/23 Trained Spotter

...Montgomery County...
Poolesville 22.0 730 Am 1/23 Trained Spotter 
1 Ene Gaithersburg 21.5 715 Am 1/23 Trained Spotter 
Gaithersburg 21.0 1000 Am 1/23 County Emrg Mgmt 
1 Ese Norbeck 20.7 1000 Am 1/23 Cocorahs 
Glenmont 20.5 1022 Am 1/23 Public 
1 Se Montgomery Vill 20.5 809 Am 1/23 Trained Spotter 
2 Ese Germantown 20.0 926 Am 1/23 Trained Spotter 
Germantown 20.0 845 Am 1/23 Public 
2 N Garrett Park 19.0 900 Am 1/23 Cocorahs 
2 Ene Aspen Hill 19.0 700 Am 1/23 Cocorahs 
1 Ene Garrett Park 18.0 600 Am 1/23 Trained Spotter 
1 Ese Norbeck 17.6 700 Am 1/23 Trained Spotter 
Olney 16.0 734 Am 1/23 Public 
1 Nnw Bethesda 16.0 618 Am 1/23 Thundersnow 
1 Ssw Montgomery Vil 16.0 716 Am 1/23 Trained Spotter 
Colesville 15.0 623 Am 1/23 Public 
1 W Fairland 15.0 630 Am 1/23 Trained Spotter 
1 Ssw White Oak 15.0 703 Am 1/23 Trained Spotter 
Bethesda 15.0 842 Am 1/23 Public 
Silver Spring 15.0 504 Am 1/23 Public 
1 Wnw Glenmont 13.4 619 Am 1/23 Trained Spotter 
Rockville 13.0 700 Am 1/23 Nws Employee 
1 Nne Fairland 13.0 600 Am 1/23 Trained Spotter 
1 N Four Corners 13.0 629 Am 1/23 Trained Spotter 
Wheaton 12.0 504 Am 1/23 Public 
1 Nnw Bethesda 10.0 811 Am 1/23 Trained Spotter

 

...Prince Georges County...
2 E Burtonsville 14.6 937 Am 1/23 Trained Spotter 
1 E Calverton 14.0 730 Am 1/23 Trained Spotter 
1 Sw College Park 14.0 841 Am 1/23 Trained Spotter 
1 Nne Cheltenham 14.0 820 Am 1/23 Trained Spotter 
1 E University Park 13.0 626 Am 1/23 Nws Office

...St. Mary's County...
1 Ssw Hollywood 11.1 730 Am 1/23 Trained Spotter 
2 Sw Golden Beach 9.0 1051 Am 1/23 Trained Spotter 
Ridge 8.5 722 Am 1/23 Trained Spotter 
2 W California 8.0 747 Am 1/23 Trained Spotter 
3 Sse Compton 7.0 630 Am 1/23 Trained Spotter

 

...Washington County...
Hancock 21.0 950 Am 1/23 Public 
3 Nnw Pecktonville 20.0 750 Am 1/23 Nws Employee 
3 Sw Fairplay 18.5 1015 Am 1/23 Trained Spotter 
1 Sse Long Meadow 17.5 819 Am 1/23 Trained Spotter 
2 Nne Boonsboro 15.7 650 Am 1/23 Public 
1 Wsw Cavetown 15.7 702 Am 1/23 Trained Spotter 
Hagerstown 14.0 724 Am 1/23 Public 
1 Ene Hagerstown 14.0 1000 Am 1/23 Cocorahs

Virginia

 

...Albemarle County...
5 N Charlottesville 11.0 924 Am 1/23 Broadcast Media

...Arlington County...
1 Wsw Reagan National Airport  14.0 700 Am 1/23 Airport 
1 Wsw Cherrydale 13.5 750 Am 1/23 Nws Employee 
2 E Barcroft 12.5 700 Am 1/23 Trained Spotter ...Augusta County...

Fishersville 12.5 630 Am 1/23 Trained Spotter

...City Of Alexandria...
2 Ene Alexandria 17.2 1032 Am 1/23 Public 
1 Se Alexandria 17.0 1025 Am 1/23 Trained Spotter 
Alexandria 17.0 930 Am 1/23 Public 
1 Ssw Alexandria 15.0 610 Am 1/23 Trained Spotter 
1 E Alexandria 14.8 530 Am 1/23 Public 
1 Wnw National Harbo 13.8 838 Am 1/23 Trained Spotter

...City Of Charlottesville...
1 N Charlottesville 14.0 1025 Am 1/23 Trained Spotter 
1 Sse Charlottesvill 10.5 923 Am 1/23 Broadcast Media 
1 Sse Charlottesvill 10.0 805 Am 1/23 Trained Spotter

...City Of Fairfax...
Fairfax 20.0 737 Am 1/23 Public

...City Of Fredericksburg...
1 Wsw Fredericksburg 9.0 600 Am 1/23 County Emrg Mgmt

...City Of Harrisonburg...
Harrisonburg 13.0 500 Am 1/23 Broadcast Media

...City Of Manassas...
Manassas 24.0 933 Am 1/23 Nws Employee 
1 Sw Manassas Park 19.4 934 Am 1/23 Trained Spotter

...City Of Staunton...
Staunton 20.0 913 Am 1/23 Public

...City Of Waynesboro...
2 Wsw Waynesboro 13.0 744 Am 1/23 Trained Spotter 
Waynesboro 12.0 611 Am 1/23 Public

...City Of Winchester...
Winchester 16.0 600 Am 1/23 Trained Spotter

...Clarke County...
1 Nnw Berryville 19.0 730 Am 1/23 Trained Spotter

...Culpeper County...
Culpeper 18.0 1013 Am 1/23 Public

...Fairfax County...
1 Se Centreville 20.0 852 Am 1/23 Trained Spotter 
Newington 19.0 905 Am 1/23 Public 
2 Nne Chantilly 19.0 754 Am 1/23 Trained Spotter 
2 N Reston 19.0 1051 Am 1/23 Trained Spotter 
2 N Chantilly 18.0 700 Am 1/23 Cocorahs 
Centreville 17.7 700 Am 1/23 Trained Spotter 
Oakton 17.5 827 Am 1/23 Public 
Vienna 17.0 843 Am 1/23 Co-Op Observer 
1 S Burke 17.0 915 Am 1/23 Trained Spotter 
1 E Fairfax Station 16.5 727 Am 1/23 Trained Spotter 
Fairfax Station 16.5 915 Am 1/23 Public 
3 N Chantilly 16.4 626 Am 1/23 Nws Employee 
1 Nw Newington 16.0 626 Am 1/23 Trained Spotter 
1 Se Merrifield 16.0 900 Am 1/23 Trained Spotter 
1 W Lake Barcroft 16.0 700 Am 1/23 Trained Spotter 
3 Sw Reston 16.0 700 Am 1/23 Cocorahs 
1 Wnw Ravensworth 16.0 711 Am 1/23 Trained Spotter 
Vienna 15.0 730 Am 1/23 Trained Spotter 
1 Ene Jefferson Mano 15.0 840 Am 1/23 Public 
1 Ssw Franconia 15.0 700 Am 1/23 Trained Spotter 
1 Sse Merrifield 15.0 747 Am 1/23 Trained Spotter 
1 E Annandale 15.0 1040 Am 1/23 Trained Spotter 
1 Wnw Falls Church 14.8 745 Am 1/23 Trained Spotter 
2 Sse Herndon 14.5 659 Am 1/23 Trained Spotter 
1 S Vienna 14.0 741 Am 1/23 Trained Spotter 
1 Ne Lorton 14.0 1030 Am 1/23 Cocorahs 
2 Ene Lorton 12.0 530 Am 1/23 Trained Spotter

...Fauquier County...
2 Wsw Broken Hill 18.0 812 Am 1/23 Trained Spotter 
1 W Greenwich 17.0 740 Am 1/23 Other Federal

...Frederick County...
3 E Winchester 30.0 1020 Am 1/23 Trained Spotter 
3 S Stephenson 24.0 914 Am 1/23 Trained Spotter 
2 W Gainesboro 23.0 1023 Am 1/23 Cocorahs 
2 E Stephens City 17.3 700 Am 1/23 Trained Spotter 
1 Ese Middletown 12.0 500 Am 1/23 Trained Spotter

...Greene County...
2 Ssw Ruckersville 11.5 906 Am 1/23 Trained Spotter

...Highland County...
1 Wsw Mustoe 16.2 920 Am 1/23 Co-Op Observer

...Loudoun County...
1 Sw Purcellville 25.0 1043 Am 1/23 Trained Spotter 
3 Ssw Dulles Interna 23.6 914 Am 1/23 Trained Spotter 
Bluemont 22.0 1020 Am 1/23 Nws Employee 
1 Ese Leesburg 20.5 1000 Am 1/23 Nws Office 
2 W Philomont 18.8 705 Am 1/23 Trained Spotter 
2 Nw Middleburg 18.0 741 Am 1/23 Trained Spotter 
2 Wsw Leesburg 18.0 753 Am 1/23 Trained Spotter 
Ashburn 16.5 740 Am 1/23 Public 
Dulles International 15.2 700 Am 1/23 Airport 
Hamilton 14.0 600 Am 1/23 Nws Employee

...Madison County...
Haywood 14.5 757 Am 1/23 Trained Spotter

...Orange County...
Thornhill 11.0 800 Am 1/23 Trained Spotter

...Page County...
1 Ese Honeyville 15.0 749 Am 1/23 Trained Spotter 
1 Sw Ida 14.0 810 Am 1/23 Trained Spotter 
2 Wsw Panorama 13.5 715 Am 1/23 Trained Spotter 
Stanley 13.0 611 Am 1/23 Public

...Prince William County...
Gainesville 21.0 840 Am 1/23 Public 
3 Sw Bull Run 20.5 858 Am 1/23 Nws Employee 
1 Ene Dumfries 14.5 1027 Am 1/23 Trained Spotter

...Rockingham County...
2 S Lacey Spring 24.0 932 Am 1/23 Trained Spotter 
1 Se Massanutten 21.0 1041 Am 1/23 Trained Spotter 
1 Sse Singers Glen 21.0 1042 Am 1/23 Trained Spotter 
1 W Dayton 16.0 728 Am 1/23 Trained Spotter 
Bergton 14.0 611 Am 1/23 Public

...Shenandoah County...
2 Ne Woodstock 19.8 943 Am 1/23 Co-Op Observer 
3 Sse Toms Brook 18.0 938 Am 1/23 Trained Spotter

...Stafford County...
2 Ene Roseville 12.0 600 Am 1/23 Trained Spotter 
1 Sse Glendie 10.0 948 Am 1/23 Trained Spotter

...Warren County...
1 N Riverside 20.0 1015 Am 1/23 Trained Spotter 
1 Nne Buckton 19.5 900 Am 1/23 Trained Spotter 
1 Wsw Karo 15.0 500 Am 1/23 Trained Spotter

West Virginia

...Berkeley County...
3 Nw Glengary 23.0 955 Am 1/23 Public 
1 Sw Jones Springs 22.5 900 Am 1/23 Trained Spotter 
Inwood 19.0 636 Am 1/23 Public 
2 E Martinsburg 16.5 700 Am 1/23 Public

...Grant County...
2 Ese Kline Gap 18.5 1050 Am 1/23 Trained Spotter

...Hampshire County...
Romney 20.0 807 Am 1/23 Public

...Hardy County...
Old Fields 18.0 611 Am 1/23 Public

...Jefferson County...
Millville 26.0 1045 Am 1/23 Public 
1 Nne Middleway 22.0 828 Am 1/23 Trained Spotter 
Bakerton 21.0 939 Am 1/23 Public 
1 Nw Moler Crossroad 18.0 823 Am 1/23 Trained Spotter 
Shepherdstown 16.5 959 Am 1/23 Public 
2 Ene Summit Point 16.0 630 Am 1/23 Trained Spotter

...Mineral County...
Keyser 21.0 931 Am 1/23 911 Call Center

...Morgan County...
Omps 21.5 550 Am 1/23 Trained Spotter 
1 W Smith Crossroads 18.7 636 Am 1/23 Trained Spotter 
1 Wsw Berkeley Spgs 15.0 817 Am 1/23 Trained Spotter

...Pendleton County...
6 Wsw Cherry Grove 21.0 815 Am 1/23 Trained Spotter 
Sugar Grove 19.0 904 Am 1/23 Public 
1 Wsw Seneca Rocks 18.0 700 Am 1/23 Trained Spotter

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I wouldn't say AA Co has been ignored by the storm. There's 16" on the ground w higher drifts. And we were never forecast to be the jackpot zone.

I have about 14 or so. I was doing well until 6am and then the dryslot. Looking like stuff is coming in from the east finally.

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18.5" tho. Good storm

Had 6.5" last measurement last night

Today I went to previously shoveled areas that were NOT corrupted by drifting. Taking between 10-20 readings the range was 11-14 with 12 the most common.

So 18.5"

My exact measurements as well. And I agree with you on banding history in this area, though I'm  somewhat hopeful today with the dry slot filling in slightly over past half hour.

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11:45, 26, -SN, 14.25".  Definitely some compaction.  I am also going to seek out new measuring locations as there is too much drifting where I am and I don't think I am getting a fully accurate reading.  Need to verify?

 

If I take a bunch of measurements in a park on grass, how much should I subtract?  I hate measuring on grass.

Take 10 measurements away from trees and buildings and without pushing down on the yardstick and go with the average.

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11:45, 26, -SN, 14.25".  Definitely some compaction.  I am also going to seek out new measuring locations as there is too much drifting where I am and I don't think I am getting a fully accurate reading.  Need to verify?

 

If I take a bunch of measurements in a park on grass, how much should I subtract?  I hate measuring on grass.

By now the grass should be pretty compacted, so maybe at most a quarter to a half inch?

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11:45, 26, -SN, 14.25". Definitely some compaction. I am also going to seek out new measuring locations as there is too much drifting where I am and I don't think I am getting a fully accurate reading. Need to verify?

If I take a bunch of measurements in a park on grass, how much should I subtract? I hate measuring on grass.

Just don't hit the ground. You can feel the slightest of resistance. Maybe a half inch?

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This is been a strange event for me in NW DC. When people say it's ripping like crazy around DC, I look outside...and it's snowing moderately.  Then people say DC is dry-slotting, and I look outside and...it's snowing moderately.  I really haven't seen very many of these wild swings that others are describing.  It's been a slow and steady pile up for us.  I think we've missed the best of it, and we won't match 2010 totals IMBY, but we're over 17 and on our way to 20+ I think.

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