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Central Alabama 7 Day Forecast

Archive for January 13th, 2013

Heavy Rain in Areas

| 7:24 pm January 13, 2013

Heavy rain continues to fall across many portions of Central Alabama this evening. The heaviest activity is lined up along Interstate 59 from De Kalb County through Gadsden, Birmingham, Tuscaloosa to about Meridian. The activity will continue to push east, but will begin to slow as the frontal system slows down. We should expect rain for several day as the cold front gets into the state making for some raw days ahead. In Central Alabama, Cullman County remains under a Flash Flood Warning until 11:30 PM. Numerous other area are under areal flood advisories, which have been issued as the heavy rainfall causes increased runoff for drainage systems and is causing some flooding through out certain areas. Make sure if you are out and about this evening and overnight that you slow it down a little bit as roads have significant water ponding on them. Remember if you encounter a flooded roadway, TURN AROUND, DON”T DROWN.

1-13-2013 7-13-07 PM

Some Flooding Reports

| 6:08 pm January 13, 2013

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Rainfall amounts according to Doppler Radar estimates are between 1 and 2 inches over a fairly wide area along and north of the I-59 corridor. You can see those in the right panel of the graphic in the areas in yellow and red. The left panel is the current radar reflectivity showing the areas of heaviest rainfall now.

John Talbot is reporting 1.02 inches as of 5:57 p.m. at his location between Concord and Hueytown.

The Birmingham Airport has picked up 0.65 inches as of 5:53 p.m.

Accordingly, we are starting to get some reports of flooding across North Central Alabama this evening.

From John Talbot: Walker County Fire reporting that Smith Lake Dam Rd @ Drummond Lake is completely flooded.

From the NWS: at least six inches of standing water over portions of Airport Rd. in Jasper.

Flash Flood Warning: Cullman County til 11:30 PM

| 5:43 pm January 13, 2013

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1-13-2013 5-43-37 PM

THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR…
CULLMAN COUNTY IN NORTH CENTRAL ALABAMA…

* UNTIL 1130 PM CST

* AT 530 PM CST…DOPPLER RADAR INDICATED HEAVY RAIN ACROSS CULLMAN
COUNTY…WITH UPWARDS OF ONE INCH OF RAIN IN LESS THAN 45 MINUTES.
THIS WILL LEAD TO EXCESSIVE RUNOFF…CAUSING FLASH FLOODING
THROUGHOUT THE COUNTY. URBAN AND LOW-LYING AREAS WILL BE MOST
SUSCEPTIBLE TO HAVING FLOODING ISSUES…AND AN ADDITIONAL INCH OR
MORE OF RAINFALL IS POSSIBLE THROUGH MIDNIGHT TONIGHT.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE…
CULLMAN…HANCEVILLE…GOOD HOPE…FALKVILLE…BAILEYTON…HOLLY
POND…GARDEN CITY…FAIRVIEW…EVA…SOUTH VINEMONT…COLONY AND
WEST POINT.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS…URBAN AREAS…HIGHWAYS…STREETS AND
UNDERPASSES AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

Severe Storm in Greene County

| 4:24 pm January 13, 2013

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A severe thunderstorm warning continues for northeastern Greene County.

A storm with rotation and the potential for damaging winds is passing north of Eutaw. It will pass between Akron and Union, crossing Highway 11 and eentually moving in the direction of Knoxville.

If it hold together, it could affect the City of Tuscaloosa around 5 p.m.

Damaging winds are the main threat, although we can’t rule out an isolated small spin up tornado as well.

Severe Thunderstorm Warning: Greene County

| 4:06 pm January 13, 2013

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Showers and some embedded thunder are over the northwestern quarter of Alabama at this time.

There is a small amount of instability and a fairly decent amount of low level helicity, so we are getting rotational signatures on Doppler radar.

One is near Fayette right now. Other indications of possible strong winds were over Greene and Sumter Counties.

The NWS has issued a severe thunderstorm warning for parts of Greene County where there are impressive winds indicated on Doppler. Winds may reach 60-70 mph in this storm.

The NWS has issued significant weather alerts for parts of Fayette, Marion, Pickens, Tuscaloosa, Walker and Winston Counties as well as the storms move through.

Winds may gust to 45 mph with these storms.

The showers and storms re ahead of a sharp cold front. Temperatures drop about 20 degrees in the first hour after the front passes.

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR…
NORTHERN GREENE COUNTY IN WEST CENTRAL ALABAMA…

* UNTIL 445 PM CST

* AT 358 PM CST…THE NATIONAL WEATHER SERVICE INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60
MPH. THIS STORM WAS LOCATED NEAR GAINESVILLE…OR 13 MILES WEST OF
EUTAW…AND MOVING NORTHEAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE…
UNION…MANTUA…KNOXVILLE…JENA…I 20 REST AREA NEAR EUTAW…
CLINTON AND SNODDY.

THIS INCLUDES…
INTERSTATE 20 EXIT NUMBERS 32 THROUGH 52…



Dramatic Temperature Changes

| 1:34 pm January 13, 2013
Click image to enlarge.

Click image to enlarge.

Let’s take a trip down I-20 early this afternoon toward Texas for a study in contrasts. By the time you get to Tuscaloosa, temperatures are in the 70s. They stay that way until Jackson, Mississippi. It’s only a short distance, around 50 miles, from Jackson to Vicksburg, but by the time you cross the Mississippi River there, temperatures are in the 50s. Get To Monroe, Louisiana, and it’s 45F. By the time you pass Shreveport and get into East Texas, it’s 35F at Tyler.

To further illustrate the dramatic contrast in the two airmasses on either side of the boundary, let’s look at what happened at Vicksburg between 9 and 10 a.m. At 9 o’clock, it was 71F with partly cloudy skies and a balmy south wind averaging 13 mph. One hour later, those southerly winds had become northwesterly, averaging 18 mph and gusting all the way to 38 mph. The temperature had plunged 16 degrees in less than an hour. Actually, the temperature drop occurred in 24 minutes. By 1 o’clock it was down to 46F with a thunderstorm in progress.

That’s what is on our way.

All this means rain, and a good bit of it, over the next 60 hours or so across Alabama as the front makes only grudging progress to the east. By tonight, it will be near I-59, delivering some of those impressive temperature changes to places like Gadsden, Birmingham and Tuscaloosa. Ahead of the front, showers were increasing over South Central Alabama at early afternoon. That trend should continue until the front arrives this evening, and after that you can expect periods of rain through Tuesday.

The heaviest rain looks like it will be in the I-59 corridor now, where 3 to 4 inches of rain could call between now and Wednesday. There is a flash flood watch now for the western counties of the Tennessee Valley in Alabama, but for now, no flash flood watches for Central Alabama. Flash flood warnings were starting to pile up over the Mississippi Delta Counties to our west by early afternoon, however.

After today’s highs that are flirting with or in the 70s, highs will be limited to the 40s Monday through Wednesday. Low will be in the midlde40s tonight, lower 40s tomorrow night and near 40F Wednesday morning.

Early Afternoon Update

| 1:07 pm January 13, 2013

Cold front continues to slowly inch down the Interstate 22 corridor towards us this afternoon. Looking at the latest surface observations, we can really see how sharp a front this is as temperatures in Tupelo just a head of the front are in the low 70s. Less than 50 miles to the west, in Oxford the front has passed through with heavy rains, and the temperatures are in the upper 30s. A very dramatic drop over such a short distance, and that temperature drop is heading our way.
1-13-2013 12-41-20 PM

Looking at the radar, heavy rain is falling through out much of the Ohio River Valley, down into Central and West Tennessee and back into North Mississippi and all the way to the Gulf Coast. Scattered showers are developing in West Alabama ahead of the main band. The rain shield continues to move slowly east with the front and we can expect a wet evening and night across Alabama, and the temperatures will be falling making for some very raw days ahead. Would not be surprised to see portions of Central Alabama be placed under flood watches and/or warnings over the next 24 hours. A few thunderstorms could be strong, but we are not expecting widespread severe weather. If there is any severe storms they will be isolated.

1-13-2013 12-43-46 PM

Satellite image has looked the same for the past few days, and with the slow movement of the front, we will stay socked in the clouds and conditions will remain gray and gloomy for several days. Clearing line is in Oklahoma and Texas will eventually make it to us by about Wednesday.
1-13-2013 12-45-05 PM

Change to Cold and Wet Tomorrow

| 7:31 am January 13, 2013

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.

As James has noted below, the cold air that has remained well to the northwest of us is finally knocking on our door. But we get one more day of warm weather before temperatures remind us that it is, indeed, winter. I noted on the weather cast last night that the temperature contrast from Little Rock to Tulsa was on the order of 40 degrees, so the temperature change across the frontal boundary is substantial.

Looks like we will see a fairly dry day today with only patchy light rain to go with the warmth. But the rain chances will increase significantly this afternoon and into tonight as the overall frontal boundary edges into our area. The upper trough continues to hang back in the Southwest US but the whole trough is laying over giving just enough of a push to bring the frontal boundary into Alabama. That means a wet period from this afternoon through Wednesday morning. It also means the cold air will settle into Central Alabama with a couple of raw days on tap for both Monday and Tuesday with little temperature change as readings stay mainly in the 40s.

Rainfall amounts could reach up to 3 inches during this period. While flash flooding does not appear to be an issue, the wet January has swollen streams, so flooding issues are likely to come about with this period of rainy weather. This rain is likely to push the Tombigbee River above flood stage around Aliceville and the Beville Lock and Dam.

The trough continues to hang back to the west of Alabama until Wednesday when it finally moves by ending the rain at least temporarily. Clouds return along with rain chances on Thursday, but after Thursday a surface high will settle into the area providing us with dry weather for next weekend along with temperatures close to seasonal values, highs around 52 and lows around 32.

Long range GFS model solutions bring winter back for week 2 with the establishment of a long wave trough position over the eastern half of the country. This trough should maintain a strong northwesterly flow pattern with a big ridge in the West.

And you can follow news and weather updates from ABC 33/40 on Twitter here. Stay in the know by following the whole gang – here’s the list…

James Spann Charles Daniel Ashley Brand
J. B. Elliott Bill Murray Brian Peters
E-Warn (AL wx watches/warnings)

James Spann will be back with the next edition of the Weather Xtreme Video. Enjoy this warm day but get the winter clothing out to cope with the next two days and have the umbrella handy for the rain. Godspeed.

-Brian-