mappy Posted January 17, 2011 Share Posted January 17, 2011 http://forecast.weat....y=121&site=LWX Interesting - I guess you being west doesn't make a whole lot of difference with this system... my point and click is exactly the same and I'm on the eastern side of 95 Link to comment Share on other sites More sharing options...
Ian Posted January 17, 2011 Author Share Posted January 17, 2011 .3 would be ice storm criteria.. maybe they'll put out ice storm warnings. Link to comment Share on other sites More sharing options...
yoda Posted January 17, 2011 Share Posted January 17, 2011 Link to comment Share on other sites More sharing options...
mappy Posted January 17, 2011 Share Posted January 17, 2011 URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 244 PM EST MON JAN 17 2011 DCZ001-MDZ013-014-016-VAZ040-051>055-501-502-180345- /O.NEW.KLWX.WW.Y.0005.110118T0300Z-110118T1400Z/ DISTRICT OF COLUMBIA-PRINCE GEORGES-ANNE ARUNDEL-CHARLES- RAPPAHANNOCK-CULPEPER-PRINCE WILLIAM/MANASSAS/MANASSAS PARK- FAIRFAX-ARLINGTON/FALLS CHURCH/ALEXANDRIA-STAFFORD- NORTHERN FAUQUIER-SOUTHERN FAUQUIER- INCLUDING THE CITIES OF...WASHINGTON...ANNAPOLIS...WALDORF... CULPEPER...MANASSAS...MANASSAS PARK...FAIRFAX...ALEXANDRIA... FALLS CHURCH...WARRENTON 244 PM EST MON JAN 17 2011 ...WINTER WEATHER ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 9 AM EST TUESDAY... THE NATIONAL WEATHER SERVICE IN BALTIMORE MD/WASHINGTON HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...SLEET AND FREEZING RAIN... WHICH IS IN EFFECT FROM 10 PM THIS EVENING TO 9 AM EST TUESDAY. * PRECIPITATION TYPE...SNOW...SLEET AND FREEZING RAIN. FREEZING RAIN WILL HAVE THE MOST SIGNIFICANT IMPACT. * ACCUMULATIONS...LESS THAN ONE INCH OF SNOW AND SLEET ACCUMULATION. AROUND ONE TENTH OF AN INCH OF ICE ACCUMULATION. * TIMING...A MIX OF SNOW AND SLEET WILL DEVELOP THIS EVENING BETWEEN 10 PM AND MIDNIGHT. SNOW AND SLEET IS EXPECTED TO CHANGE TO FREEZING RAIN BETWEEN MIDNIGHT AND 2 AM...AND WILL CONTINUE THROUGH MUCH OF THE NIGHT. FREEZING RAIN WILL THEN CHANGE TO RAIN EARLY TUESDAY MORNING. * TEMPERATURES...AROUND 30 TONIGHT AND EARLY TUESDAY MORNING. HIGHS TUESDAY AFTERNOON AROUND 40. * WINDS...NORTHEAST 5 TO 10 MPH TONIGHT. BECOMING NORTHWEST 10 TO 15 MPH TUESDAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. Link to comment Share on other sites More sharing options...
yoda Posted January 17, 2011 Share Posted January 17, 2011 Link to comment Share on other sites More sharing options...
Ji Posted January 17, 2011 Share Posted January 17, 2011 URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 244 PM EST MON JAN 17 2011 DCZ001-MDZ013-014-016-VAZ040-051>055-501-502-180345- /O.NEW.KLWX.WW.Y.0005.110118T0300Z-110118T1400Z/ DISTRICT OF COLUMBIA-PRINCE GEORGES-ANNE ARUNDEL-CHARLES- RAPPAHANNOCK-CULPEPER-PRINCE WILLIAM/MANASSAS/MANASSAS PARK- FAIRFAX-ARLINGTON/FALLS CHURCH/ALEXANDRIA-STAFFORD- NORTHERN FAUQUIER-SOUTHERN FAUQUIER- INCLUDING THE CITIES OF...WASHINGTON...ANNAPOLIS...WALDORF... CULPEPER...MANASSAS...MANASSAS PARK...FAIRFAX...ALEXANDRIA... FALLS CHURCH...WARRENTON 244 PM EST MON JAN 17 2011 ...WINTER WEATHER ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 9 AM EST TUESDAY... THE NATIONAL WEATHER SERVICE IN BALTIMORE MD/WASHINGTON HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...SLEET AND FREEZING RAIN... WHICH IS IN EFFECT FROM 10 PM THIS EVENING TO 9 AM EST TUESDAY. * PRECIPITATION TYPE...SNOW...SLEET AND FREEZING RAIN. FREEZING RAIN WILL HAVE THE MOST SIGNIFICANT IMPACT. * ACCUMULATIONS...LESS THAN ONE INCH OF SNOW AND SLEET ACCUMULATION. AROUND ONE TENTH OF AN INCH OF ICE ACCUMULATION. * TIMING...A MIX OF SNOW AND SLEET WILL DEVELOP THIS EVENING BETWEEN 10 PM AND MIDNIGHT. SNOW AND SLEET IS EXPECTED TO CHANGE TO FREEZING RAIN BETWEEN MIDNIGHT AND 2 AM...AND WILL CONTINUE THROUGH MUCH OF THE NIGHT. FREEZING RAIN WILL THEN CHANGE TO RAIN EARLY TUESDAY MORNING. * TEMPERATURES...AROUND 30 TONIGHT AND EARLY TUESDAY MORNING. HIGHS TUESDAY AFTERNOON AROUND 40. * WINDS...NORTHEAST 5 TO 10 MPH TONIGHT. BECOMING NORTHWEST 10 TO 15 MPH TUESDAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. WHERE IS LOUDOUN??? Link to comment Share on other sites More sharing options...
Ian Posted January 17, 2011 Author Share Posted January 17, 2011 loudoun .1-.2 ice Link to comment Share on other sites More sharing options...
mappy Posted January 17, 2011 Share Posted January 17, 2011 Winter Weather Advisory URGENT - WINTER WEATHER MESSAGENATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC244 PM EST MON JAN 17 2011MDZ004>007-009>011-VAZ042-180345-/O.NEW.KLWX.WW.Y.0005.110118T0300Z-110118T1700Z/FREDERICK MD-CARROLL-NORTHERN BALTIMORE-HARFORD-MONTGOMERY-HOWARD-SOUTHERN BALTIMORE-LOUDOUN-INCLUDING THE CITIES OF...FREDERICK...WESTMINSTER...GAITHERSBURG...COLUMBIA...BALTIMORE...LEESBURG244 PM EST MON JAN 17 2011...WINTER WEATHER ADVISORY IN EFFECT FROM 10 PM THIS EVENING TONOON EST TUESDAY...THE NATIONAL WEATHER SERVICE IN BALTIMORE MD/WASHINGTON HASISSUED A WINTER WEATHER ADVISORY FOR SNOW...SLEET AND FREEZINGRAIN...WHICH IS IN EFFECT FROM 10 PM THIS EVENING TO NOON ESTTUESDAY.* PRECIPITATION TYPE...SNOW...SLEET AND FREEZING RAIN. FREEZING RAIN WILL HAVE THE MOST SIGNIFICANT IMPACT.* ACCUMULATIONS...ONE INCH OR LESS OF SNOW AND SLEET ACCUMULATION. ONE TO TWO TENTHS OF AN INCH OF ICE ACCUMULATION.* TIMING...A MIX OF SNOW AND SLEET WILL DEVELOP THIS EVENING BETWEEN 10 PM AND MIDNIGHT. SNOW AND SLEET IS EXPECTED TO CHANGE TO FREEZING RAIN BETWEEN MIDNIGHT AND 3 AM...AND WILL CONTINUE OVERNIGHT AND EARLY TUESDAY MORNING. FREEZING RAIN WILL THEN CHANGE TO RAIN LATE TUESDAY MORNING.* TEMPERATURES...UPPER 20S TONIGHT AND EARLY TUESDAY MORNING. HIGHS TUESDAY AFTERNOON IN THE UPPER 30S.* WINDS...NORTHEAST 5 TO 10 MPH TONIGHT. BECOMING NORTHWEST 10 TO 15 MPH TUESDAY.PRECAUTIONARY/PREPAREDNESS ACTIONS...A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...ORFREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FORSLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILEDRIVING. Link to comment Share on other sites More sharing options...
mitchnick Posted January 17, 2011 Share Posted January 17, 2011 OT,but new SREF at 87 hrs since everyone seems to be here now looks bit better with precip shield http://www.nco.ncep.noaa.gov/pmb/nwprod/analysis/namer/sref/15/images/sref_x24_087s.gif Link to comment Share on other sites More sharing options...
Ellinwood Posted January 17, 2011 Share Posted January 17, 2011 Looking at recent regional obs... CAD pretty evident in the dewpoints (or in Ian's wetbulb line)... nice little wedge of drier air Interesting wind change from the DC area to Central VA as well... looks like it's the start of the area where the low to the south is starting to affect. Link to comment Share on other sites More sharing options...
yoda Posted January 17, 2011 Share Posted January 17, 2011 URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 244 PM EST MON JAN 17 2011 MDZ004>007-009>011-VAZ042-180345- /O.NEW.KLWX.WW.Y.0005.110118T0300Z-110118T1700Z/ FREDERICK MD-CARROLL-NORTHERN BALTIMORE-HARFORD-MONTGOMERY-HOWARD- SOUTHERN BALTIMORE-LOUDOUN- INCLUDING THE CITIES OF...FREDERICK...WESTMINSTER... GAITHERSBURG...COLUMBIA...BALTIMORE...LEESBURG 244 PM EST MON JAN 17 2011 ...WINTER WEATHER ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO NOON EST TUESDAY... THE NATIONAL WEATHER SERVICE IN BALTIMORE MD/WASHINGTON HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...SLEET AND FREEZING RAIN...WHICH IS IN EFFECT FROM 10 PM THIS EVENING TO NOON EST TUESDAY. * PRECIPITATION TYPE...SNOW...SLEET AND FREEZING RAIN. FREEZING RAIN WILL HAVE THE MOST SIGNIFICANT IMPACT. * ACCUMULATIONS...ONE INCH OR LESS OF SNOW AND SLEET ACCUMULATION. ONE TO TWO TENTHS OF AN INCH OF ICE ACCUMULATION. * TIMING...A MIX OF SNOW AND SLEET WILL DEVELOP THIS EVENING BETWEEN 10 PM AND MIDNIGHT. SNOW AND SLEET IS EXPECTED TO CHANGE TO FREEZING RAIN BETWEEN MIDNIGHT AND 3 AM...AND WILL CONTINUE OVERNIGHT AND EARLY TUESDAY MORNING. FREEZING RAIN WILL THEN CHANGE TO RAIN LATE TUESDAY MORNING. * TEMPERATURES...UPPER 20S TONIGHT AND EARLY TUESDAY MORNING. HIGHS TUESDAY AFTERNOON IN THE UPPER 30S. * WINDS...NORTHEAST 5 TO 10 MPH TONIGHT. BECOMING NORTHWEST 10 TO 15 MPH TUESDAY. Link to comment Share on other sites More sharing options...
nw baltimore wx Posted January 17, 2011 Share Posted January 17, 2011 WHERE IS LOUDOUN??? Different advisory. Yours is until noon. Link to comment Share on other sites More sharing options...
H2O Posted January 17, 2011 Share Posted January 17, 2011 WHERE IS LOUDOUN??? WEST OF FAIRFAX AND NORTH OF PRINCE WILLIAM!! Link to comment Share on other sites More sharing options...
TUweathermanDD Posted January 17, 2011 Share Posted January 17, 2011 I wouldn't count out upgrades to ISW's or WSW's for ice and a bit of snow tonight (more likely ISW though) for some counties in C MD and N VA (around Ji's) Link to comment Share on other sites More sharing options...
Dalfy Posted January 17, 2011 Share Posted January 17, 2011 Never broke 30.. at least according to the closest weatherbug station just 2 miles to my west. Temp is now dropping from a high of 29.. dp is 16, humidity is 60% Link to comment Share on other sites More sharing options...
Kmlwx Posted January 17, 2011 Share Posted January 17, 2011 I wouldn't count out upgrades to ISW's or WSW's for ice and a bit of snow tonight (more likely ISW though) for some counties in C MD and N VA (around Ji's) Eh I doubt it. They'll probably be fine with the .1-.2 call. Link to comment Share on other sites More sharing options...
mitchnick Posted January 17, 2011 Share Posted January 17, 2011 18Z NAM Naso great by looking at 6hrs Link to comment Share on other sites More sharing options...
yoda Posted January 17, 2011 Share Posted January 17, 2011 Never broke 30.. at least according to the closest weatherbug station just 2 miles to my west. Temp is now dropping from a high of 29.. dp is 60 This i have to see Link to comment Share on other sites More sharing options...
H2O Posted January 17, 2011 Share Posted January 17, 2011 Looking at recent regional obs... CAD pretty evident in the dewpoints (or in Ian's wetbulb line)... nice little wedge of drier air Interesting wind change from the DC area to Central VA as well... looks like it's the start of the area where the low to the south is starting to affect. That map is interesting. My wxbug station that I use is only 1/4 mile from me and it has a NNE wind. I am S of DCA by about 10 miles Link to comment Share on other sites More sharing options...
Ji Posted January 17, 2011 Share Posted January 17, 2011 Nam sucks. Just took all our snow away. Winter sucks! Link to comment Share on other sites More sharing options...
yoda Posted January 17, 2011 Share Posted January 17, 2011 18Z NAM Naso great by looking at 6hrs Ice ice baby Link to comment Share on other sites More sharing options...
mitchnick Posted January 17, 2011 Share Posted January 17, 2011 Nam sucks. Just took all our snow away. Winter sucks! not all, just anything over 1/2" Link to comment Share on other sites More sharing options...
BethesdaWX Posted January 17, 2011 Share Posted January 17, 2011 This i have to see I believe it, mine was 31.8 for high, now down to 31 flat. Link to comment Share on other sites More sharing options...
TUweathermanDD Posted January 17, 2011 Share Posted January 17, 2011 not all, just anything over 1/2" So what, it was off with the little 2-3'' last minute squall win last week where we got it from the ULL instead of the Coastal. I am nowcasting the radar/obs and the very short range models. Mt.Holly is very bullish on 1-3'' east of us on the eastern shore, interesting huh. Link to comment Share on other sites More sharing options...
Dalfy Posted January 17, 2011 Share Posted January 17, 2011 This i have to see meant humidity lol. My fault on that one. Link to comment Share on other sites More sharing options...
Ellinwood Posted January 17, 2011 Share Posted January 17, 2011 That map is interesting. My wxbug station that I use is only 1/4 mile from me and it has a NNE wind. I am S of DCA by about 10 miles I could believe it... how light is the wind? Is the wind direction more variable? Link to comment Share on other sites More sharing options...
BethesdaWX Posted January 17, 2011 Share Posted January 17, 2011 Uhh, why is my wind SSE? Link to comment Share on other sites More sharing options...
smokeybandit Posted January 17, 2011 Share Posted January 17, 2011 BWI shows a spike from about 1330 to 1430 of 2 degrees. Otherwise been at 30 all day. Link to comment Share on other sites More sharing options...
Kmlwx Posted January 17, 2011 Share Posted January 17, 2011 I believe it, mine was 31.8 for high, now down to 31 flat. He's talking about the dewpoint................ Link to comment Share on other sites More sharing options...
mappy Posted January 17, 2011 Share Posted January 17, 2011 BWI never got above 30 today... my forecasted high for today was 33. Oops. Link to comment Share on other sites More sharing options...
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