Archive for February 11th, 2010
WINTER STORM WARNING!
February 11th, 2010 | 
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The Counties Shaded in Pink are under Winter Storm Warning
URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE BIRMINGHAM AL 151 PM CST THU FEB 11 2010 ...WINTER STORM EXPECTED LATE TONIGHT INTO FRIDAY... ALZ030-033-039>050-121200- /O.UPG.KBMX.WS.A.0001.100212T0600Z-100213T0000Z/ /O.NEW.KBMX.WS.W.0001.100212T0600Z-100213T0000Z/ SUMTER-PERRY-MARENGO-DALLAS-AUTAUGA-LOWNDES-ELMORE-MONTGOMERY- MACON-BULLOCK-LEE-RUSSELL-PIKE-BARBOUR- INCLUDING THE CITIES OF...LIVINGSTON...MARION...DEMOPOLIS... LINDEN...SELMA...PRATTVILLE...FORT DEPOSIT...HAYNEVILLE... WETUMPKA...TALLASSEE...MONTGOMERY...TUSKEGEE...UNION SPRINGS... AUBURN...OPELIKA...PHENIX CITY...TROY...EUFAULA 151 PM CST THU FEB 11 2010 ...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM CST FRIDAY... THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM CST FRIDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. THE ATMOSPHERE ACROSS CENTRAL ALABAMA WILL BE CONDUCIVE TO A DOMINANT PRECIPITATION TYPE OF SNOW. SNOW WILL BEGIN FALLING AFTER MIDNIGHT TONIGHT ACROSS FAR SOUTHWESTERN AREAS NEAR LIVINGSTON AND DEMOPOLIS. THE SNOW WILL QUICKLY SPREAD EASTWARD FRIDAY MORNING...AND IS EXPECTED TO TAPER OFF FROM WEST TO EAST LATE FRIDAY AFTERNOON. AT THIS TIME...IT APPEARS THAT SNOW ACCUMULATION OF THREE TO FIVE INCHES WILL BE POSSIBLE IN THE WARNED AREA. AREAS WEST OF INTERSTATE 65 WILL LIKELY EXPERIENCE THE HEAVIEST ACCUMULATING SNOW BETWEEN 7 AND 11 AM WHILE AREAS EAST OF INTERSTATE 65 WILL GET THE HEAVIEST SNOW A BIT LATER BETWEEN 10 AM AND 2 PM. A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. LISTEN TO NOAA WEATHER RADIO OR YOUR LOCAL MEDIA FOR THE LATER UPDATES ON THIS SITUATION.
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Winter Storm Update: Warnings Coming and Snow Totals Call
Now….Winter Storm Watches are still in effect for the same areas, but we have been told to expect warnings to go out later today as the storm nears along with some Winter Weather Advisories north of the warning for the expectation of 1-2″ snowfall totals. We have finally thrown together a map this morning of what we are thinking…and keep in mind this is subject to change but given a little northward shift in things….I believe the totals along and south of the I-20 corridor have the potential to be higher than anyone else is forecasting at this point.
The HPC is maintaining it’s probabilities for 4″+ snow accumulation south of the I-20 corridor as well and I believe they are pretty much in line with my thinking. Here is the new HPC 10% snow probabilities map.
Keep in mind…we are still some 12-24 hours away from this snow event and things are subject to change rapidly. What we do know…is that it looks like everyone will be getting some snowfall out of this system. It is harder to pinpoint exact accumulations with these kind of systems given our active southern subtropical jet. As we have said in previous discussions….if the northern and southern stream phase more than forecast…we could be in for a more massive winter storm.
Stay tuned for later updates…
