gymengineer Posted January 13, 2015 Share Posted January 13, 2015 looks like ~0.08" for DC Quibbling over hundredths, I know... but from their own website, it looks like DC is solidly in the 0.1" contour. Link to comment Share on other sites More sharing options...
mosi76 Posted January 13, 2015 Share Posted January 13, 2015 CWG lowers amounts from district north Link to comment Share on other sites More sharing options...
WEATHER53 Posted January 13, 2015 Share Posted January 13, 2015 The precipitable moisture in the lower levels is good. This is a strong and cold high but not as dry as a 30.50 would usually be. The current precip is light and spotty but still continues a good northward component to it's movement. Link to comment Share on other sites More sharing options...
Deck Pic Posted January 13, 2015 Share Posted January 13, 2015 My Forecast for DC I just put on facebook. You can follow me here - https://www.facebook.com/HeadfulOfSnow Forecast for DC for morning snow event. May update later. See details below. The Skinny: More than a dusting, Less than 1"When will it start - roughly 4-5amWhen will it end - roughly 10am-NoonWill it stick easily: yesWill it be light or heavy?: On the light sideChances of not seeing a single flake: 15%Chances of at least a dusting on cartops: 60%Chances of at least 1/2": 50%Chances of at least 1": 35%Chances of at least 2": 20%Chances of at least 3": 10%Will the Fed close: noWill Fauquier County close: yes Link to comment Share on other sites More sharing options...
Ian Posted January 13, 2015 Share Posted January 13, 2015 Dying grandpa GFS is better but the .1" line is like 10000 miles from me. Link to comment Share on other sites More sharing options...
Bob Chill Posted January 13, 2015 Author Share Posted January 13, 2015 Dying grandpa GFS is better but the .1" line is like 10000 miles from me. You can get to Point Lookout in 2 hours so it's chaseable. Link to comment Share on other sites More sharing options...
Ian Posted January 13, 2015 Share Posted January 13, 2015 WWA up Link to comment Share on other sites More sharing options...
NinjaWarrior2 Posted January 13, 2015 Share Posted January 13, 2015 Umm, WWA Link to comment Share on other sites More sharing options...
Ian Posted January 13, 2015 Share Posted January 13, 2015 URGENT - WINTER WEATHER MESSAGENATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC459 PM EST TUE JAN 13 2015DCZ001-MDZ011-013-014-016-503>506-VAZ052>056-502-506-140600-/O.NEW.KLWX.WW.Y.0003.150114T0900Z-150114T1700Z/DISTRICT OF COLUMBIA-SOUTHERN BALTIMORE-PRINCE GEORGES-ANNE ARUNDEL-CHARLES-NORTHWEST MONTGOMERY-CENTRAL AND SOUTHEASTERN MONTGOMERY-NORTHWEST HOWARD-CENTRAL AND SOUTHEAST HOWARD-PRINCE WILLIAM/MANASSAS/MANASSAS PARK-FAIRFAX-ARLINGTON/FALLS CHURCH/ALEXANDRIA-STAFFORD-SPOTSYLVANIA-SOUTHERN FAUQUIER-EASTERN LOUDOUN-INCLUDING THE CITIES OF...WASHINGTON...BALTIMORE...DUNDALK...CATONSVILLE...ANNAPOLIS...WALDORF...GERMANTOWN...DAMASCUS...ROCKVILLE...LISBON...COLUMBIA...ELLICOTT CITY...MANASSAS...MANASSAS PARK...FAIRFAX...ALEXANDRIA...FALLS CHURCH...FREDERICKSBURG...LEESBURG...ASHBURN459 PM EST TUE JAN 13 2015...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM TO NOON ESTWEDNESDAY...THE NATIONAL WEATHER SERVICE IN BALTIMORE MD/WASHINGTON HASISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECTFROM 4 AM TO NOON EST WEDNESDAY.* PRECIPITATION TYPE...SNOW.* ACCUMULATIONS...AROUND ONE INCH.* TIMING...ONSET AROUND 4 TO 6 AM...CONTINUING INTO THE LATEMORNING HOURS...BEFORE MIXING WITH PERIODS OF SLEET ANDDISSIPATING BY EARLY AFTERNOON.* TEMPERATURES...MIDDLE 20S DURING THE PREDAWN HOURS...INCREASINGTO LOW 30S LATER IN THE MORNING.* WINDS...NORTH AT 5 TO 10 MPH.* IMPACTS...SNOW WILL LIKELY DEVELOP EARLY IN THE MORNING COMMUTE.THIS COUPLED WITH ROAD AND AIR TEMPERATURES WELL BELOW FREEZINGWILL CAUSE ACCUMULATION OF SNOWFALL ON ROADWAYS. THIS WILLRESULT IN HAZARDOUS DRIVING CONDITIONS.PRECAUTIONARY/PREPAREDNESS ACTIONS...A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOWWILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOWCOVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILEDRIVING. Link to comment Share on other sites More sharing options...
paulythegun Posted January 13, 2015 Share Posted January 13, 2015 18Z RGEM continues to give us the good stuff. About 1" of snowmap, widespread Link to comment Share on other sites More sharing options...
WEATHER53 Posted January 13, 2015 Share Posted January 13, 2015 Right now at 3pm is an interesting time in the evolution. I am on board for 2" in general DC area. The precipitable moisture lower layers is decent for a minor event, right now the water vapor movement is in a stall phase with a shift in last 3 hours from ene to ne. Light precip in far western NC, eastern TN and even extreme se KY is moving almost due north. I think the next 6 hours will be fun to monitor. It will be all snow if it occurs. 40%+ rh and 30.50 baro are not in tandem very often. That is a clue. Link to comment Share on other sites More sharing options...
mappy Posted January 13, 2015 Share Posted January 13, 2015 Damn, not even a WWA Link to comment Share on other sites More sharing options...
mitchnick Posted January 13, 2015 Share Posted January 13, 2015 http://weather.cod.edu/satrad/nexrad/index.php?type=FCX-N0Q-1-12 Link to comment Share on other sites More sharing options...
Wonderdog Posted January 13, 2015 Share Posted January 13, 2015 Clouds are approaching Gainesville 30 degrees Link to comment Share on other sites More sharing options...
HighStakes Posted January 13, 2015 Share Posted January 13, 2015 Damn, not even a WWA The next one is ours. Link to comment Share on other sites More sharing options...
Deck Pic Posted January 13, 2015 Share Posted January 13, 2015 29/15..High impact 0.01 Link to comment Share on other sites More sharing options...
lsukev Posted January 13, 2015 Share Posted January 13, 2015 21Z HRRR coming in a good bit further north. Maybe 25-30 miles or so further NW. Still gives DC little to nothing. Weird. Link to comment Share on other sites More sharing options...
mappy Posted January 13, 2015 Share Posted January 13, 2015 The next one is ours. Oh yeah, no,worries here. Even conversational flakes will be nice. At least the drive to work shouldn't be too awful Link to comment Share on other sites More sharing options...
Ian Posted January 13, 2015 Share Posted January 13, 2015 29/15..High impact 0.01 Pepco is 30.49 compared to DCA's 30.56... what is wrong with DCA? Link to comment Share on other sites More sharing options...
WEATHER53 Posted January 13, 2015 Share Posted January 13, 2015 Radar filling in to the south and sw, good northward component in the movement. Link to comment Share on other sites More sharing options...
DCAlexandria Posted January 13, 2015 Share Posted January 13, 2015 Oh yeah, no,worries here. Even conversational flakes will be nice. At least the drive to work shouldn't be too awful It would be kind of cool If DC scored all winter while Westminster got repeatedly skunked. Link to comment Share on other sites More sharing options...
BristowWx Posted January 13, 2015 Share Posted January 13, 2015 It would be kind of cool If DC scored all winter while Westminster got repeatedly skunked. I guess DC could win a snow battle or two but Westminister will win the war...and most battles as well. Don't think they sweat DC when it comes to winter. Link to comment Share on other sites More sharing options...
lsukev Posted January 13, 2015 Share Posted January 13, 2015 I hate the RAP. The resolution is terrible on the simulated radar. It makes no logical sense the way the precip shield looks. Link to comment Share on other sites More sharing options...
T. August Posted January 13, 2015 Share Posted January 13, 2015 LWX just removed the 1-2" jackpot on the map at 5:48PM, making the WWA worthless. Link to comment Share on other sites More sharing options...
I-83 BLIZZARD Posted January 13, 2015 Share Posted January 13, 2015 Damn, not even a WWA The northern screw zone is a tough place to live sometimes! This area has sucked for snow lately. Link to comment Share on other sites More sharing options...
H2O Posted January 13, 2015 Share Posted January 13, 2015 It would be kind of cool If DC scored all winter while Westminster got repeatedly skunked. Lol. Get ready fir disappointment. Repeatedly Link to comment Share on other sites More sharing options...
Ian Posted January 13, 2015 Share Posted January 13, 2015 LWX just removed the 1-2" jackpot on the map at 5:48PM, making the WWA worthless.Rush hour criteria Link to comment Share on other sites More sharing options...
Ian Posted January 13, 2015 Share Posted January 13, 2015 I've never live blogged models for a dusting before. At least the disappointment potential is low. Link to comment Share on other sites More sharing options...
Ji Posted January 13, 2015 Share Posted January 13, 2015 I've never live blogged models for a dusting before. At least the disappointment potential is low. even if we do great, the storm is still going to suck ass Link to comment Share on other sites More sharing options...
AlaskaETC Posted January 13, 2015 Share Posted January 13, 2015 I've never live blogged models for a dusting before. At least the disappointment potential is low. I'm ready to quote this post if needed. Link to comment Share on other sites More sharing options...
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