Archive for December 6th, 2011
WUS44 KHUN 070339
URGENT – WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE HUNTSVILLE AL
939 PM CST TUE DEC 6 2011
INCLUDING THE CITIES OF…HUNTSVILLE…SCOTTSBORO…FORT PAYNE…
939 PM CST TUE DEC 6 2011
…WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM TO 6 PM CST
THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW…WHICH IS IN EFFECT FROM 6 AM TO 6 PM CST
* TIMING AND AREAS AFFECTED…RAIN SHOULD MIX WITH AND TRANSITION TO
SNOW AFTER 6 AM WEDNESDAY. SNOW WILL THEN INCREASE IN COVERAGE AND
INTENSITY IN THE LATE MORNING AND EARLY AFTERNOON…DISSIPATING
RAPIDLY BY THE LATE AFTERNOON. AREAS IMPACTED INCLUDE
MADISON…JACKSON AND DEKALB COUNTIES IN NORTH ALABAMA AND FRANKLIN
COUNTY TENNESSEE…PRIMARILY IN ELEVATIONS ABOVE 1500 FT.
* ACCUMULATIONS…ONE TO TWO INCHES PRIMARILY ON GRASSY AND ELEVATED
* OTHER HAZARDS…TEMPERATURES WILL FALL INTO THE 20S RAPIDLY AFTER
SUNSET ON WEDNESDAY. THIS COULD LEAD TO BLACK ICE ON AREA ROADWAYS
WEDNESDAY EVENING AND OVERNIGHT.
* IMPACTS…DUE TO WARM GROUND TEMPERATURES AND AIR TEMPERATURES
REMAINING ABOVE FREEZING EARLY WEDNESDAY MORNING…MUCH OF THE SNOW
WILL INITIALLY MELT ON ROADWAYS. HOWEVER…WHERE PERSISTENT SNOW
FALLS…SOME LIGHT SNOW COULD ACCUMULATE ON ELEVATED ROADWAYS AND
A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL
CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED
ROADS AND LIMITED VISIBILITIES…AND USE CAUTION WHILE DRIVING.
Rain has become widespread across Alabama this evening… and it will continue at times throughout the night. Scroll down for the full discussion…
An all new edition of the ABC 33/40 Weather Xtreme video is available in the player on the right sidebar of the blog. You can subscribe to the Weather Xtreme video on iTunes by clicking here.
RIGHT NOW: Our slow moving front is over East Alabama… east of the front, Auburn is at 66 degrees, but to the west Haleyville is 23 degrees colder at 43. At the moment there isn’t much rain across our state, but rain is increasing over the southern half of Mississippi, and southwest winds aloft will carry that rain up into the northern half of Alabama during the next few hours.
We will forecast periods of rain tonight with low clouds and temperatures settling into the 40s as the front continues the very slow journey to the east.
COLD DAY TOMORROW: Models are in good agreement with a very sharp vorticity maximum moving right over North Alabama tomorrow afternoon. We will maintain the risk of some light rain tomorrow, but the dynamic cooling associated with the vort max will bring the chance of light snow, snow flurries, or a few snow showers to North Alabama tomorrow afternoon into the evening hours. The RPM suggests we might see a few snow flakes as far south as I-20 (Tuscaloosa to Birmingham to Anniston), but no need to panic or make the milk and bread run since surface temperatures will be well above freezing and there will be no significant accumulation. I guess if we see a convective type snow shower, it might make the grass white in a few spots, but there will be no travel issues other than just wet roadways.
THURSDAY THROUGH SUNDAY: The sky will clear Thursday with sunshine returning; the high will be in the low 50s as cool air remains in place. The weather stays cool and dry Friday through the weekend, with highs in the 50-55 degree range, and lows between 25 and 32.
NEXT WEEK: The 12Z GFS hints our next rain event comes around the middle of next week… see the Weather Xtreme video for more long range ideas.
WEATHER BRAINS: Don’t forget you can listen to our weekly 90 minute netcast anytime on the web, or on iTunes. This is the show all about weather featuring many familiar voices, including our meteorologists here at ABC 33/40.
CONNECT: You can find me on all of the major social networks…
I had a great time today at Bruno Montesorri School in Shelby County… be looking for those 5th and 6th graders on the Pepsi KIDCAM today at 5:00 on ABC 33/40 News! The next Weather Xtreme video will be posted bright and early tomorrow by 7:00 a.m…..
Although all sections of Alabama did not get substantial rain. Here is a list, generally for the 24 hours ending around 6 am, CST today:
1.08 Birmingham Airport
0.34 Tuscaloosa Airport
1.36 Muscle Shoals
0.55 Valley Head
0.01 Anniston (rain was late getting there)
0.64 Oak Grove
1.15 Village Creek at Ave. W, West Birmingham
1.07 West Trussville
How about that twenty degree difference on either side of the cold front… which is now east of Birmingham! Scroll down for the morning forecast discussion…