mappy Posted February 21, 2011 Share Posted February 21, 2011 light sleet in Odenton Link to comment Share on other sites More sharing options...
BristowWx Posted February 21, 2011 Share Posted February 21, 2011 Wait, come again? Isnt that early? Amazing how temps are dropping. 33F here in Bristow just west of you so if we can get precip to come in it will be game on. I wonder what the 850s are right now? Link to comment Share on other sites More sharing options...
WxUSAF Posted February 21, 2011 Share Posted February 21, 2011 DCA reporting a rain/snow mix... game on. Snow at DCA before MBY? Storm cancel Link to comment Share on other sites More sharing options...
ovechkin Posted February 21, 2011 Share Posted February 21, 2011 whaaaa? Its plain drizzle here. Am I the only one who still has drizzle? Nope, 36 and just plain light rain/drizzle in wheaton. Not sure what to make of DCA's report. If it's accurate what does it mean that it's actually already SN mixing and not IP? Link to comment Share on other sites More sharing options...
samdman95 Posted February 21, 2011 Share Posted February 21, 2011 Yeah I'm getting plain rain here. DCA's reports are odd. Link to comment Share on other sites More sharing options...
yoda Posted February 21, 2011 Share Posted February 21, 2011 Snow at DCA before MBY? Storm cancel I am thinking it was supposed to be PL, not SN Link to comment Share on other sites More sharing options...
BethesdaWX Posted February 21, 2011 Share Posted February 21, 2011 Nope, 36 and just plain light rain/drizzle in wheaton. Not sure what to make of DCA's report. If it's accurate what does it mean that it's actually already SN mixing and not IP? Yeah was wondering the same thing regarding the mixing. Fact that I haven't heard 1 ping, and have been through several moderate rain showers this evening, makes me wonder. But absolutely no winter precip as of yet, here at least. Link to comment Share on other sites More sharing options...
Ian Posted February 21, 2011 Share Posted February 21, 2011 MESOSCALE DISCUSSION 0119 NWS STORM PREDICTION CENTER NORMAN OK 0533 PM CST MON FEB 21 2011 AREAS AFFECTED...PORTIONS CENTRAL/SERN OH...NRN WV...EXTREME SWRN PA...NRN VA...NWRN THROUGH CENTRAL MD INCLUDING PANHANDLE...DC. CONCERNING...WINTER MIXED PRECIPITATION VALID 212333Z - 220430Z EXISTING FREEZING RAIN SITUATION OVER PORTIONS CENTRAL/SRN OH AND NRN PANHANDLE OF WV SHOULD SHIFT SLIGHTLY SWD. OVER CENTRAL-ERN PARTS OF THIS CORRIDOR...FROM NERN WV ACROSS NRN MD...CURRENT AREAS OF FREEZING RAIN ARE EXPECTED TO TRANSITION TO SNOW FROM N-S WITH TIME...ALONG SRN LIMB OF REGIME COVERED IN SPC MESOSCALE DISCUSSION 118. MEANWHILE...HEAVIER PRECIP IS FCST TO SPREAD ACROSS THIS REGION FROM WNW-ESE...AS RAIN CHANGES TO FREEZING RAIN...WITH RATES .05-.1 INCH/HOUR...LOCALLY/BRIEFLY HEAVIER IN CORES. 23Z SFC MESOANALYSIS SHOWS WAVY FREEZING LINE FROM CENTRAL OH NEAR CMH EWD NEAR HLG...ESEWD NEAR CBE...MRB...FDK...THEN NEWD PAST TO RDG. THIS FREEZING LINE WILL SHIFT SWD THROUGH REMAINDER EVENING PRIMARILY BECAUSE OF... 1. BOUNDARY LAYER CAA...AS SFC PRESSURE RISES NOW ANALYZED OVER MID-ATLANTIC REGION REINFORCE LOWER-THETAE AIR MASS N OF FRONTAL ZONE 2. SUBTLE DIABATIC SFC COOLING...AND ESPECIALLY 3. EVAPORATIVE/WET-BULB EFFECTS FROM PRECIP FALLING INTO LAYER OF DRY ADVECTION N OF FRONT. THESE FACTORS WILL FOSTER CHANGE FROM RAIN TO FREEZING RAIN IN AREAS NOW S OF THAT LINE. MEANWHILE...TIME SERIES OF MODIFIED RUC SOUNDINGS SUGGESTS SUPERFREEZING LAYER ABOVE SFC WILL COOL ON N SIDE OF THIS CORRIDOR...LEADING TO PHASE TRANSITION FROM LIQUID TO SNOW FROM N-S...WHILE STILL REMAINING WARM ENOUGH TO SUPPORT LIQUID ELSEWHERE. MOISTURE TRANSPORT INTO THIS REGION SHOULD CONTINUE ON NOSE OF LONG-FETCH/40-45 KT SWLY LLJ...WHILE SUPPORTIVE ISENTROPIC/FRONTOGENETIC ASCENT MAXIMA SHIFT EWD ALONG THIS CORRIDOR. STRONGEST FRONTOGENETIC FORCING SHOULD BE IN 750-850 MB COLUMN...FROM WITHIN TO JUST BELOW BASE OF ELEVATED WARM LAYER...AND NE OF EWD-MOVING SFC LOW. ON ERN END OF DISCUSSION AREA...OVER NRN/CENTRAL MD...COOLING FROM 850 MB TO SFC MAY SHRINK WARM-LAYER DEPTH ALOFT AND SUPPORT OCNL SLEET...HOWEVER...PRIND FREEZING RAIN WILL BE PRIMARY PHASE OVER MOST OF THIS SWATH BEFORE CHANGE TO SNOW. ..EDWARDS.. 02/21/2011 ATTN...WFO...CTP...LWX...PBZ...RLX...ILN... LAT...LON 40148317 40158252 40178069 39907941 39657770 39377656 38987644 38787666 38827752 39157894 39408053 39448166 39498294 39668354 40108335 40148317 Link to comment Share on other sites More sharing options...
Stormpc Posted February 21, 2011 Share Posted February 21, 2011 37.1. Nothing happening here. Link to comment Share on other sites More sharing options...
jonjon Posted February 21, 2011 Share Posted February 21, 2011 Up here at over 3000' the temps have dropped from 43 to 35 in the past hour or so. Drizzle. Link to comment Share on other sites More sharing options...
weathercoins Posted February 21, 2011 Share Posted February 21, 2011 Light rain in College Park. 36.1 degrees here. Link to comment Share on other sites More sharing options...
TradeWinds Posted February 21, 2011 Share Posted February 21, 2011 Sleet just started in Frederick...31.3F Link to comment Share on other sites More sharing options...
WVclimo Posted February 21, 2011 Share Posted February 21, 2011 The radar returns coming out of western Maryland have taken a decided turn toward the ESE in the past hour. Link to comment Share on other sites More sharing options...
Herb@MAWS Posted February 21, 2011 Share Posted February 21, 2011 Hi 2/21: 39.1 7:00pm 2/21: 35.3, NNE 11-19 peak gust 24, DP 28, light rain 5:00pm 2/21: 38.2, NNE-11, DP 31, light rain and sleet 3:00pm 2/21: 38.7, N 11-14 peak gust 21, DP 32, Overcast noon 2/21: 38.7, NW 3-7, DP 35, Overcast, Precip total= 0.04" 9:00am 2/21: 38.2, Wind N-9 peak gust 14, DP31. 8:30am 2/21: 38.3 Overnite Sun-Mon low 36.2, precip overnite 0.02" Real-time temps, winds etc HERE Link to comment Share on other sites More sharing options...
Mrs.J Posted February 21, 2011 Share Posted February 21, 2011 Sleet just started in Frederick...31.3F Was just going to report that and a temp of 30. Link to comment Share on other sites More sharing options...
yoda Posted February 22, 2011 Share Posted February 22, 2011 AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 654 PM EST MON FEB 21 2011 .SYNOPSIS... -- Changed Discussion --A COLD FRONT OVER CENTRAL VIRGINIA WILL CONTINUE TO MOVE SOUTHWARD SLOWLY THIS EVENING. LOW PRESSURE OVER THE MIDWEST WILL MOVE EAST ALONG THE FRONT AND THROUGH THE MID-ATLANTIC STATES BY TUESDAY MORNING. HIGH PRESSURE WILL BUILD INTO THE REGION MID-WEEK BEFORE LOW PRESSURE IMPACTS THE MID-ATLANTIC STATES LATE THURSDAY AND FRIDAY.-- End Changed Discussion -- && .NEAR TERM /UNTIL 6 AM TUESDAY MORNING/... -- Changed Discussion --PRIMARY CHG HAS BEEN TO ACCELERATE ONSET OF WINTRY PCPN. SLEET... FRZG RAIN AND SNOW HAS SPREAD INTO FAR NRN TIER OF CTYS. WINTER STORM WRNG START TIME WAS ADJUSTED FOR THIS NRN TIER...AND ICE WAS INCLUDED IN FCST. OTHERWISE...HEADLINES RMN INTACT. SNOW XPCD TO BCM MDT TO HVY AT TIMES TNGT AS MID-LVL JET BCMS STGR ACRS RGN. Link to comment Share on other sites More sharing options...
BethesdaWX Posted February 22, 2011 Share Posted February 22, 2011 35.5F, a few drizzle-drops. Link to comment Share on other sites More sharing options...
Avdave Posted February 22, 2011 Share Posted February 22, 2011 Snow and rain mix here in market st in the burg. About 33 or 34 degrees Link to comment Share on other sites More sharing options...
mappy Posted February 22, 2011 Share Posted February 22, 2011 Snow and rain mix here in market st in the burg. About 33 or 34 degrees I thought you said to fook the models and that southern PA was getting all the love Link to comment Share on other sites More sharing options...
TradeWinds Posted February 22, 2011 Share Posted February 22, 2011 Was just going to report that and a temp of 30. Temps seem to be falling fast. Since I posted 5 min ago, temp now reads 30.4F Link to comment Share on other sites More sharing options...
Ellinwood Posted February 22, 2011 Share Posted February 22, 2011 I gots me some sleet. Link to comment Share on other sites More sharing options...
winterymix Posted February 22, 2011 Share Posted February 22, 2011 I gots me some sleet. Me too. Warm nose sagging south. Link to comment Share on other sites More sharing options...
yoda Posted February 22, 2011 Share Posted February 22, 2011 Link to comment Share on other sites More sharing options...
bacamock Posted February 22, 2011 Share Posted February 22, 2011 31.9 in Bristow. Link to comment Share on other sites More sharing options...
mappy Posted February 22, 2011 Share Posted February 22, 2011 I like how Salisbury is located in the wrong county Link to comment Share on other sites More sharing options...
WxUSAF Posted February 22, 2011 Share Posted February 22, 2011 -RAPL again. Maybe more PL than RA at times. Couple snowflakes as well. Temp just above freezing. Link to comment Share on other sites More sharing options...
WVclimo Posted February 22, 2011 Share Posted February 22, 2011 A 60/40 Sleet/Snow mix. Ground is covered, including sidewalks and asphalt driveway. Warm ground cancel. 28 degrees. Link to comment Share on other sites More sharing options...
Pen48guins Posted February 22, 2011 Share Posted February 22, 2011 Sleet in Arbutus at the moment. Im riding around in an ambulance at the moment. Link to comment Share on other sites More sharing options...
mappy Posted February 22, 2011 Share Posted February 22, 2011 Had a lull in the precip for a bit, sleeting now. Link to comment Share on other sites More sharing options...
weathervswife Posted February 22, 2011 Share Posted February 22, 2011 Clearly posted by a genius. I"m all in now. Link to comment Share on other sites More sharing options...
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