RDM Posted December 23, 2022 Share Posted December 23, 2022 The potential for a flash freeze with even a few flurries around DC tomorrow could cause mayhem. We had a serious flash freeze in Ohio (and other states in the midwest) during the blizzard of 78. The temp drop was 30+ F over an hour or so ivo our house. Coupled with wind gusts in excess of 65mph, the flash freeze made travel nearly impossible. Even where the wind blew the snow clear, the combination of wind and ice made plowing and travel impossible. We won't have the 12+ inches of snow around here, but just a dusting could be enough. So lets project the potential impact across the WDC metropolitan area on the day before Christmas Eve? Tomorrow is going to be a day to stay home... Link to comment Share on other sites More sharing options...
mattie g Posted December 23, 2022 Share Posted December 23, 2022 38 minutes ago, MN Transplant said: More fun climo stats. There have been 68 days in DCA's climate record with a 40+ spread between high and low temps. Most of those are in the distant past. There have only been 5 cases in the past 40 years: 3/23/1994 - 83/39 1/19/1996 - 62/20 (the Potomac flood final push) 12/22/1998 - 67/24 4/8/2000 - 78/38 1/13/2018 - 62/21 We might be able to add to this list tomorrow if we can hold the 50s until midnight. Very cool. Arctic fronts have always resulted - and will always result - in big temp swings in winter. Neat to see this one join the ranks of some of the more notable ones. Link to comment Share on other sites More sharing options...
Rhino16 Posted December 23, 2022 Share Posted December 23, 2022 It pretty much rained all day here in the mountains. I’ll try to be up early to document the freeze. I really want to see some falling snowflakes. Link to comment Share on other sites More sharing options...
MN Transplant Posted December 23, 2022 Share Posted December 23, 2022 Heaviest rainfall rates of the day so far. Up to 1.42" total, 52 degrees. 2 Link to comment Share on other sites More sharing options...
George BM Posted December 23, 2022 Share Posted December 23, 2022 4 minutes ago, MN Transplant said: Heaviest rainfall rates of the day so far. Up to 1.42" total, 52 degrees. Now there's a Flood Warning for much of northern/central VA. My new weather radio made sure I knew it. 1 Link to comment Share on other sites More sharing options...
nj2va Posted December 23, 2022 Share Posted December 23, 2022 The Buffalo area has been cleaning up this winter. They’re under a blizzard warning for another 2-3’ of snow with winds gusting 65-70 mph, wild. 2 Link to comment Share on other sites More sharing options...
clskinsfan Posted December 23, 2022 Share Posted December 23, 2022 1 hour ago, WVclimo said: I’m up to 1.20” of liquid for the event. Still 34° with plenty of snowpack left. Yeah I am good as well. Had a high of 34 today. Back down to freezing currently and the back roads are quite dangerous. Getting snow today saved us from the torch. My only wish was a white Christmas. And that is guaranteed now. About an inch and half of snowpack left. It survived quite well. 5 Link to comment Share on other sites More sharing options...
Demeter Posted December 23, 2022 Share Posted December 23, 2022 I am interested to know the thoughts around how much of this rain will dry up before the flash freeze. I have a lot of decent flooding in my yard, and I would assume the same of others. I don’t see this drying up as much as it normally would. 5 Link to comment Share on other sites More sharing options...
clskinsfan Posted December 23, 2022 Share Posted December 23, 2022 3 minutes ago, Demeter said: I am interested to know the thoughts around how much of this rain will dry up before the flash freeze. I have a lot of decent flooding in my yard, and I would assume the same of others. I don’t see this drying up as much as it normally would. I think some people are going to be surprised by the flash freeze. Tons of liquid fell in our region. Everything is saturated. All of the brine and salt has washed away. And no chance all of it dries up before turning to concrete. Less traveled roads will have some terrible spots on them. 1 Link to comment Share on other sites More sharing options...
Cobalt Posted December 23, 2022 Share Posted December 23, 2022 The 0z 3k NAM has its best depiction of the snow associated with the front. Shifted a bit North, but definitely a swath of 1"+ that wasn't as prominent in previous runs. 5 Link to comment Share on other sites More sharing options...
Kleimax Posted December 23, 2022 Share Posted December 23, 2022 2 minutes ago, Cobalt said: The 0z 3k NAM has its best depiction of the snow associated with the front. Shifted a bit North, but definitely a swath of 1"+ that wasn't as prominent in previous runs. Towson jackpot Link to comment Share on other sites More sharing options...
clskinsfan Posted December 23, 2022 Share Posted December 23, 2022 5 minutes ago, Kleimax said: Towson jackpot I thought Towson was near Baltimore not Frederick? Anyways. I dont ever remember a "Wind Chill Advisory" being something. Is this a new thing from the NWS or is my memory failing as bad as my wife says it is? Edit: By the way. I am freshly home from my company Christmas party and quite hammered. So I will probably be annoying as hell the next 4 days. Those that might be offended should take a look at the ignore feature on this site and put me on it. Wind Chill Advisory URGENT - WINTER WEATHER MESSAGE National Weather Service Baltimore MD/Washington DC 725 PM EST Thu Dec 22 2022 MDZ003>006-507-VAZ027>031-501-505-WVZ052-053-230830- /O.CON.KLWX.WC.Y.0011.221223T1800Z-221224T1500Z/ Washington-Frederick MD-Carroll-Northern Baltimore- Northwest Harford-Shenandoah-Frederick VA-Page-Warren-Clarke- Northern Fauquier-Western Loudoun-Berkeley-Jefferson- 725 PM EST Thu Dec 22 2022 ...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 PM FRIDAY TO 10 AM EST SATURDAY... * WHAT...Very cold wind chills expected. Wind chills as low as 15 below zero. 3 1 Link to comment Share on other sites More sharing options...
WxUSAF Posted December 23, 2022 Author Share Posted December 23, 2022 8 minutes ago, Cobalt said: The 0z 3k NAM has its best depiction of the snow associated with the front. Shifted a bit North, but definitely a swath of 1"+ that wasn't as prominent in previous runs. I’m all in 2 Link to comment Share on other sites More sharing options...
SnowenOutThere Posted December 23, 2022 Share Posted December 23, 2022 26 minutes ago, George BM said: Now there's a Flood Warning for much of northern/central VA. My new weather radio made sure I knew it. If it makes us lowlanders feel better we are the only place in the nation with a flood watch, take that how you will Link to comment Share on other sites More sharing options...
Eskimo Joe Posted December 23, 2022 Share Posted December 23, 2022 1 minute ago, clskinsfan said: I thought Towson was near Baltimore not Frederick? Anyways. I dont ever remember a "Wind Chill Advisory" being something. Is this a new thing from the NWS or is my memory failing as bad as my wife says it is? Wind Chill Watch/Advisory/Warning is a long standing product. Prior to today, here is the last time and wind chill product was issued by LWX: 2 Link to comment Share on other sites More sharing options...
peribonca Posted December 23, 2022 Share Posted December 23, 2022 There was a small event before the blizzard of January 2016 that dropped under an inch and paralysed traffic around the beltway... Could be similar tomorrow 5 Link to comment Share on other sites More sharing options...
clskinsfan Posted December 23, 2022 Share Posted December 23, 2022 1 minute ago, Eskimo Joe said: Wind Chill Watch/Advisory/Warning is a long standing product. Prior to today, here is the last time and wind chill product was issued by LWX: Oh sweet Jesus. She really is going to put me in a home soon. I will be posting like Chuck before ya'll know it. Link to comment Share on other sites More sharing options...
MN Transplant Posted December 23, 2022 Share Posted December 23, 2022 Front timing is still 9-10am along 95 tomorrow. HRRR a touch faster than the NAM. HRRR still more aggressive on the cold, but the NAM 3km is now <10 for most of us tomorrow night. 5 Link to comment Share on other sites More sharing options...
nj2va Posted December 23, 2022 Share Posted December 23, 2022 Latest HRRR has the front crossing the mountains by 6a. Deep Creek drops to 12 degrees by 7a and -4 by 9a. Front is pushing through 95 at 9a. 1 Link to comment Share on other sites More sharing options...
Chris78 Posted December 23, 2022 Share Posted December 23, 2022 1 minute ago, nj2va said: Latest HRRR has the front crossing the mountains by 6a. Deep Creek drops to 12 degrees by 7a and -4 by 9a. Front is pushing through 95 at 9a. Insane. Going to be a wild weather day. 3 Link to comment Share on other sites More sharing options...
IronTy Posted December 23, 2022 Share Posted December 23, 2022 2 minutes ago, nj2va said: Latest HRRR has the front crossing the mountains by 6a. Deep Creek drops to 12 degrees by 7a and -4 by 9a. Front is pushing through 95 at 9a. Ah geez. 1 Link to comment Share on other sites More sharing options...
snowfan Posted December 23, 2022 Share Posted December 23, 2022 Just now, IronTy said: Ah geez. Lol. Good luck dude. Please post pics. Link to comment Share on other sites More sharing options...
MN Transplant Posted December 23, 2022 Share Posted December 23, 2022 NAM Nest joins the HRRR in keeping us below 20 on Christmas Eve. Still, a bit different from my home territory. 3 2 Link to comment Share on other sites More sharing options...
AmericanWxFreak Posted December 23, 2022 Share Posted December 23, 2022 Summer like torrential downpour in HoCo Link to comment Share on other sites More sharing options...
nj2va Posted December 23, 2022 Share Posted December 23, 2022 The FFFF storm - flash fcking flizzard freeze 6 Link to comment Share on other sites More sharing options...
Eskimo Joe Posted December 23, 2022 Share Posted December 23, 2022 Front really ripping through Indiana, pressing into Ohio now. Even with the muted nighttime temps, there's a pretty rapid 20 to 30 degree temp drop ongoing. 1 Link to comment Share on other sites More sharing options...
poolz1 Posted December 23, 2022 Share Posted December 23, 2022 May be the first time I wake up early to track a cold front. Gonna be fun to watch even if no snow occurs. 2.08" so far and the creek has spilled into the yard. Sounds like a freight train outside. At least the dog won't be tracking mud in for the next few days. 5 Link to comment Share on other sites More sharing options...
clskinsfan Posted December 23, 2022 Share Posted December 23, 2022 NAM brought the flizzard back for most. It shows rain on the precip maps. But that is snow. I think the majority of us are going to enjoy tomorrow morning. Gonna be a rare event here. 1 Link to comment Share on other sites More sharing options...
lpaschall Posted December 23, 2022 Share Posted December 23, 2022 I am actually looking forward to this tomorrow and maybe I will get a dusting up here. I just finished closing my bibs and draining the water, still have some water to drain off the pool cover early tomorrow before front rolls through 1 Link to comment Share on other sites More sharing options...
pazzo83 Posted December 23, 2022 Share Posted December 23, 2022 2 hours ago, MN Transplant said: More fun climo stats. There have been 68 days in DCA's climate record with a 40+ spread between high and low temps. Most of those are in the distant past. There have only been 5 cases in the past 40 years: 3/23/1994 - 83/39 1/19/1996 - 62/20 (the Potomac flood final push) 12/22/1998 - 67/24 4/8/2000 - 78/38 1/13/2018 - 62/21 We might be able to add to this list tomorrow if we can hold the 50s until midnight. it doesn't seem like that'll be an issue - it's torching rn. 55F at DCA and 53F here up in Tenley. 1 Link to comment Share on other sites More sharing options...
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