Big Changes On The Way With The Coldest Air Of The Season

Northwest winds of 15-30 mph will put the wind chill index down in the teens much of the day on Sunday is going to make it very RAW outside, but Monday looks worse with lows of 12-15 degrees for Central Alabama early Monday but some spots in North Alabama could be in the 10-13 degree range. The wind will push the wind chill index near zero Just after daybreak on Monday.The GFS has it spot on as it sure looks like we won’t get out of the 20s Monday with gusty north winds continuing to keep wind chills in Single digits all day
Sunday


Well snow lovers it looks as if we will miss out again this time.This system has really weakened considerably from the way it looked just 48 hours ago. We are not expecting near the amount of precipitation that we once thought. So as for any weekend snow you can see from the model runs this morning it showed a good little dusting for north Alabama and with the afternoon runs it is gone. Will it return in runs overnight or tomorrow maybe, because some runs show good wrap around moisture but I would not hold my breath. Yes we may see a change over to all snow sometime before sunrise and into the day on Sunday but no accumulations are expected. This will not be our last chance this season as December is a bit early for us in the south to really talk about snow so if we get it it is a bonus, most of our threats come in January and February. At the bottom of the page is the NWS Huntsville HWO for the next 7 days notice they are watching the system on Wednesday close. The 2 models above the HWO are for Wednesday next week. It is going to be another close call on it as well. All models for Sunday below are valid at 1am.


2:30 am Sunday

This is the look of the GFS as of this mornings run (showed a little dusting Sunday)

This is the afternoon look NOTHING

1am Sunday

1am Sunday

1am Sunday

Wednesday Critical Thickness

Wednesday Precip

DAY ONE...TONIGHT...

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY...

GUSTY SOUTHERLY WINDS OF 15 TO 25 MPH ARE EXPECTED SATURDAY AFTERNOON
AND EVENING AHEAD OF AN APPROACHING COLD FRONT. A LINE OF HEAVY
SHOWERS AND POSSIBLY A FEW THUNDERSTORMS WILL AFFECT NORTHWEST
ALABAMA BETWEEN 7 AND 10 PM AND WILL SHIFT EAST THROUGH NORTHEAST
ALABAMA AND SOUTHERN MIDDLE TENNESSEE AFTER MIDNIGHT. BRIEF GUSTY
WINDS OF 30 TO 40 MPH WILL BE POSSIBLE DURING THE PASSAGE OF THE
COLD FRONT.

RAINFALL AMOUNTS OF AROUND AN INCH ARE EXPECTED...WITH ISOLATED
HIGHER AMOUNTS POSSIBLE. THE RAIN MAY BRIEFLY CHANGE TO LIGHT SNOW OR
FLURRIES...ESPECIALLY IN THE HIGHER ELEVATIONS OF THE CUMBERLAND
PLATEAU IN NORTHEAST ALABAMA AND SOUTHERN MIDDLE TENNESSEE. SOME
LIGHT SNOW AND SNOW FLURRIES WILL CONTINUE INTO THE AFTERNOON HOURS
ON SUNDAY. LITTLE OR NO ACCUMULATION IS EXPECTED.

THE MAIN WINTER WEATHER HAZARD LATE SATURDAY NIGHT INTO EARLY SUNDAY
MORNING WILL BE THE FORMATION OF BLACK ICE DUE TO QUICK FREEZING OF
WET ROAD SURFACES. TEMPERATURES WILL PLUMMET INTO THE 20S SUNDAY
MORNING...AND MAY CLIMB ABOVE FREEZING ONLY BRIEFLY IN VALLEY
AREAS...AND NOT AT ALL IN HIGHER ELEVATIONS. NORTHWEST WINDS OF 20 TO
30 MPH WITH GUSTS NEAR 35 MPH ARE EXPECTED SUNDAY. A PERIOD OF COLD
WEATHER WILL LAST THROUGH MID WEEK...WITH LOWS IN THE SINGLE DIGITS
AND TEENS MONDAY AND TUESDAY MORNINGS.

A WINTRY MIX OF PRECIPITATION MAY BE POSSIBLE ON WEDNESDAY AS ANOTHER
WEATHER SYSTEM DEVELOPS IN THE DEEP SOUTH. THIS SYSTEM BEARS
WATCHING...BUT IT IS TOO EARLY TO PROVIDE DETAILS WITH HIGH
CONFIDENCE AT THIS TIME.