paulythegun Posted December 11, 2023 Share Posted December 11, 2023 snow mostly limited in the city to grassy areas, cartops, and grassy cartops 1 6 Link to comment Share on other sites More sharing options...
GramaxRefugee Posted December 11, 2023 Share Posted December 11, 2023 35 minutes ago, Maestrobjwa said: Dang lost on a faulty technicality, haha You misspelled "score fixing by an enemy of Tom". (all starting to make sense now) 1 Link to comment Share on other sites More sharing options...
Eskimo Joe Posted December 11, 2023 Share Posted December 11, 2023 lol 2 minutes ago, BlizzardNole said: I was wondering about that too but maybe a lucky heavy burst? It's just curious though right on the water. Some good measurements in southern MD though, for example a couple inches in LaPlata (hi diatae!) Got 1.5 in Germantown which triples last winter's total MoCo schools delayed so my wife's preschool is closed. That's a gift since she's dealing with a bad cold and does not get paid on sick days Makes sense. Slightly inland away from water could lead to better accumulation. 1 Link to comment Share on other sites More sharing options...
Eskimo Joe Posted December 11, 2023 Share Posted December 11, 2023 23 minutes ago, osfan24 said: There's clearly an issue of the location of the weather station and measuring area at BWI, so why don't they just change it? Does not seem very difficult. Little disappointed to only get about a half inch and nothing on roads after seeing some models focus the heavy band right over my area. Guessing I got into a heavier band for a half hour or so and got most of my snow from that. Knew there would be winners and losers with this. Interesting to see that just northwest of me seemed to cash in and then way down in Southern MD did pretty well. Most importantly, PSU had a nice accumulation so winter is saved. The ASOS is to support airport operations and is run by the FAA. The NWS is only able to glean information from it and has a limited say in it's location. Link to comment Share on other sites More sharing options...
nw baltimore wx Posted December 11, 2023 Share Posted December 11, 2023 42 minutes ago, Maestrobjwa said: Dang lost on a faulty technicality, haha He shouldn’t have lined up offsides or at least checked with the line judge! 1 Link to comment Share on other sites More sharing options...
TSSN+ Posted December 11, 2023 Share Posted December 11, 2023 Snows still holding on here. Link to comment Share on other sites More sharing options...
DarkSharkWX Posted December 11, 2023 Share Posted December 11, 2023 2.1” final storm total in gburg 530’huge overpreformance 1 Link to comment Share on other sites More sharing options...
Herb@MAWS Posted December 11, 2023 Share Posted December 11, 2023 Recap IMBY/Columbia: 2.25” rain 0.6” snow between approx 3:00-5:30am low temp overnight 32.4° Link to comment Share on other sites More sharing options...
BlizzardNole Posted December 11, 2023 Share Posted December 11, 2023 49 minutes ago, osfan24 said: Most importantly, PSU had a nice accumulation so winter is saved. More important that any indices or teleconnections. We're good! Link to comment Share on other sites More sharing options...
HighStakes Posted December 11, 2023 Share Posted December 11, 2023 18 minutes ago, TSSN+ said: Snows still holding on here. Here as well. Even on my south facing front lawn. Link to comment Share on other sites More sharing options...
psuhoffman Posted December 11, 2023 Share Posted December 11, 2023 3 hours ago, HighStakes said: Looks like 3 for the books. I fell asleep with over 2 on the ground and it snowing heavily at 3:30 a.m. going by the other posters in the area and the one spotter report 3 seems to be the consensus. This was another case where there was a visible difference between my house and Ebb Valley when I dropped the kids off. Not as pronounced as Dec 2020 when I had 3” up here and only a coating down there but it was about 1” difference. ~250 ft additional elevation makes a difference in these super marginal events. Link to comment Share on other sites More sharing options...
psuhoffman Posted December 11, 2023 Share Posted December 11, 2023 5 minutes ago, HighStakes said: Here as well. Even on my south facing front lawn. Low sun angle but also…the clouds we get up here from a NW flow off the Great Lakes helps a lot. Those clouds tend to dissipate just SE of us where the elevation drops and it makes a big difference. Link to comment Share on other sites More sharing options...
psuhoffman Posted December 11, 2023 Share Posted December 11, 2023 1 hour ago, stormy said: I usually review statistics on every event, winter and summer. A lot of discussion Saturday and Sunday concerned the preferred model measure of total accumulation. What I believed to be the common sense preferred measure because of marginal borderline surface conditions pre and during the event did not measure up very well in review. I usually relied on the Positive Snow Depth Change. In review, I found it to be consistently too low for both myself and Psu. Of course I realize it may have been correct for "skunked" locations. The 10:1 measure was far more accurate. 24 hours pre-event at 06 Sunday : Stormy 2.0" - Total PSDC - GFS .3" ECMWF 1.0" Stormy 2.0" - 10:1 Ratio - GFS 1.7" ECMWF 2.0" 24 hours pre-event at 06 Sunday : Psu 3.8" - Total PSDC - GFS .3" ECMWF 1.4" Psu 3.8" - 10:1 Ratio - GFS 3.9" ECMWF 2.9" This is good analysis to do. In the end a compromise seems to have been best. The 10-1 were a bit high even here. Some runs were close but others had me at 5+. But as I expected the depth maps were low for places that did get banding. If it snows hard marginal air/ground temps can be overcome. We’ve seen this time and again. Kuchera I think was the closest of the pre made clown maps. Overall the euro did really well with this one imo. 1 Link to comment Share on other sites More sharing options...
HighStakes Posted December 11, 2023 Share Posted December 11, 2023 19 minutes ago, psuhoffman said: This was another case where there was a visible difference between my house and Ebb Valley when I dropped the kids off. Not as pronounced as Dec 2020 when I had 3” up here and only a coating down there but it was about 1” difference. ~250 ft additional elevation makes a difference in these super marginal events. I remember that December 2020 small event. That was by far the biggest difference for a marginal event. Then we had that nice storm a couple days later. Last night was a good start and was close to being a really good storm. If we were able to get into some decent rates earlier and the precip didn't move out quite as fast this would've been a 5-6 inch snow. The flip was right on time and we got colder than modeled at its height. 3 Link to comment Share on other sites More sharing options...
Terpeast Posted December 11, 2023 Share Posted December 11, 2023 4 hours ago, aldie 22 said: But Arcola is just west of IAD and probably due south of you and got an inch. That said half inch to an inch seems right around the area Yeah, I eyeballed half an inch at 6:30 am well after precip exited east of the bay. Temp had risen back up to 36. Heavily compacted like it was almost a layer of ice when I scraped my car. So it could have been close to an inch, max. LWX spotter reports had Ashburn at 0.5” as well. I got the lower end of the stick here, but happy that we pulled a rabbit out of a hat in a bad pattern early on. Link to comment Share on other sites More sharing options...
psuhoffman Posted December 11, 2023 Share Posted December 11, 2023 I let the kids play outside this morning since school was delayed. Snow cover still holding strong. 34 Link to comment Share on other sites More sharing options...
Newman Posted December 11, 2023 Share Posted December 11, 2023 One of my buddies in Leesburg sent me a pic at 4am with what looked like only a dusting. I'm not familiar with the VA/MD topography too much, but that's pretty wild that only a short ways to his east many saw 1.5-2". Even west in Round Hill, VA has a report of 1.5. Anyone else in Leesburg can confirm? 1 Link to comment Share on other sites More sharing options...
WEATHER53 Posted December 11, 2023 Share Posted December 11, 2023 Wrap up is 0.8” accumulation but probably 3” fell and could not all accumulate. Had couple of bursts of heavy 1”ph+ and mostly moderate to heavy. Changeover was fast once first flakes mixed in 34.5 for a low after a 61.5 high and currently 45 what’s next? Link to comment Share on other sites More sharing options...
WEATHER53 Posted December 11, 2023 Share Posted December 11, 2023 1 hour ago, Eskimo Joe said: The ASOS is to support airport operations and is run by the FAA. The NWS is only able to glean information from it and has a limited say in it's location. This is very true that’s it’s not really a weather station but an airport facilities station . Most people snd even seasoned weather people think it an official weather station. So, if the thermometers are located such that measurements and temps can easily be retrieved manually then that location will be part of the airport buildings complexes and things like can it radiate comparatively and accumulate snow comparatively are non priority issues. I started saying this here 15 years ago and constantly got scalded so I just gave up. I had and have a lot of details from my affiliations with MIC and know what they prioritize and often got told “we ain’t here for weather weenies” Link to comment Share on other sites More sharing options...
WEATHER53 Posted December 11, 2023 Share Posted December 11, 2023 44 minutes ago, psuhoffman said: I let the kids play outside this morning since school was delayed. Snow cover still holding strong. Really great pics. You are nw of Frederick? Our daughter is about 2 miles se of downtown Frederick and got just 0.5”. Looks like you got 3-4”? Her child’s school was delayed also Link to comment Share on other sites More sharing options...
psuhoffman Posted December 11, 2023 Share Posted December 11, 2023 20 minutes ago, WEATHER53 said: Really great pics. You are nw of Frederick? Our daughter is about 2 miles se of downtown Frederick and got just 0.5”. Looks like you got 3-4”? Her child’s school was delayed also Thanks. I’m NE of Frederick. I’m on a ridge just north of Manchester in Carroll County. I ended up with 3.8 to be exact. 2 Link to comment Share on other sites More sharing options...
notvirga! Posted December 11, 2023 Share Posted December 11, 2023 Great pics Psu! Link to comment Share on other sites More sharing options...
weatherCCB Posted December 11, 2023 Share Posted December 11, 2023 1.28” rain, 1.68” total precipitation . Link to comment Share on other sites More sharing options...
Jebman Posted December 12, 2023 Share Posted December 12, 2023 10 hours ago, CoastalWx said: Nice job with the snow guys. It begins and hopefully isn't the end. This is only the Beginning. For both our subs. This, is going to be a winter like no other. Link to comment Share on other sites More sharing options...
Roger Smith Posted December 12, 2023 Share Posted December 12, 2023 Greatest winter since 2021-22 anyway ... 1 Link to comment Share on other sites More sharing options...
MN Transplant Posted December 12, 2023 Share Posted December 12, 2023 7 hours ago, WEATHER53 said: This is very true that’s it’s not really a weather station but an airport facilities station . Most people snd even seasoned weather people think it an official weather station. So, if the thermometers are located such that measurements and temps can easily be retrieved manually then that location will be part of the airport buildings complexes and things like can it radiate comparatively and accumulate snow comparatively are non priority issues. I started saying this here 15 years ago and constantly got scalded so I just gave up. I had and have a lot of details from my affiliations with MIC and know what they prioritize and often got told “we ain’t here for weather weenies” DCA's ASOS is on the east (river) side of the runways. It is not near the buildings. Now, the snowfall measurement location is a completely different issue, but they seem to have fixed that in the past 5 years or so. Link to comment Share on other sites More sharing options...
RIC Airport Posted December 12, 2023 Share Posted December 12, 2023 1 hour ago, MN Transplant said: DCA's ASOS is on the east (river) side of the runways. It is not near the buildings. Now, the snowfall measurement location is a completely different issue, but they seem to have fixed that in the past 5 years or so. The ASOS is where the red dot is. Also, if you zoom in you can see it in the below photo. The below link takes you to the station information where you can scroll down read the recent station updates and other information. https://www.ncei.noaa.gov/access/homr/#ncdcstnid=20027254&tab=MISC You'll see where it says "Snow measurement area located on the side of the old terminal in a semi-enclosed area near 38.850168,-77.041657", which should be close to the southern end of the terminal/field. 1 Link to comment Share on other sites More sharing options...
EastCoast NPZ Posted December 12, 2023 Share Posted December 12, 2023 10 hours ago, clskinsfan said: Really? Are you being serious? Yep. I mean, snow fell for a time, but nothing heavy enough to accumulate anywhere. Complete white rain. Even the rain was whimpy; we only got .9" Link to comment Share on other sites More sharing options...
wxdude64 Posted December 12, 2023 Share Posted December 12, 2023 On 12/11/2023 at 8:20 AM, EastCoast NPZ said: As Yukon Cornelius would say, "nuthin." On 12/11/2023 at 10:24 AM, clskinsfan said: Really? Are you being serious? 16 hours ago, EastCoast NPZ said: Yep. I mean, snow fell for a time, but nothing heavy enough to accumulate anywhere. Complete white rain. Even the rain was whimpy; we only got .9" Ditto here. I sit at 1300 +- elevation. ALMOST started turning things white once or twice, but rates just weren't enough to overcome the temps (36-37). However, JUST above me (1800-2000 and up) 1-3 inches fell. By the time I was 34-35 degrees precip was moving east. Link to comment Share on other sites More sharing options...
TSSN+ Posted December 12, 2023 Share Posted December 12, 2023 This person picked the right house in Westminster to retain snow cover lol. 3 Link to comment Share on other sites More sharing options...
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