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Winds Gust to 58 mph at BHM

| 6:30 pm January 25, 2015

Winds just gusted to 58 mph at the Birmingham International Airport.

0023Z KBHM 260023Z 26017G50KT 4SM +TSRA SQ FEW038 FEW050 OVC060CB 10/06 A2982

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The strongest parts of the storms are over southern Jefferson County, approaching the Inverness area.

Other strong cells are approaching Helena in Shelby County and Montevallo in Shelby County.

Be alert for damaging winds, as well as brief torrential rains and dangerous lightning. There could even be some small hail.

An interesting case example of how you can have instability even with low surface temperatures and dew points if the temperatures aloft are cold enough.

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Severe Thunderstorm Warning for Parts of Shelby, Bibb, Hale and St. Clair Counties

| 5:58 pm January 25, 2015

Aliant Bank is a proud sponsor of AlabamaWX.com!

The strong line of storms advancing across Central Alabama tonight is producing reports of wind damage, including downed trees and power lines.

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Be in a safe place as these strong storms approach your area.

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR…
BIBB COUNTY IN ALABAMA…
NORTHEASTERN HALE COUNTY IN WEST CENTRAL ALABAMA…
SOUTHERN ST. CLAIR COUNTY IN ALABAMA…
SHELBY COUNTY IN ALABAMA…

* UNTIL 700 PM CST

* AT 555 PM CST…THE NATIONAL WEATHER SERVICE INDICATED A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM
GARDENDALE TO MOUNDVILLE…AND MOVING EAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE…
HELENA…BRENT…CENTREVILLE…PELHAM…ODENVILLE…MOODY…
ALABASTER AND CHELSEA.

THIS INCLUDES…
INTERSTATE 65 EXIT NUMBERS 228 THROUGH 247…
INTERSTATE 20 EXIT NUMBERS 144 THROUGH 158…
INTERSTATE 59 EXIT NUMBER 148…

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Severe Thunderstorm Warning for Jefferson/Tuscaloosa Counties

| 5:49 pm January 25, 2015

Aliant Bank is a proud sponsor of AlabamaWX.com!

A line of strong thunderstorms moving across Central Alabama is producing strong wind gusts that have caused damage. There are reports of trees down and power outages along the line.

Trees have been reported down in Brookwood and Duncanville.

Winds gusted to 59 mph at the Tuscaloosa Airport.

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The storms are tapping strong winds aloft and a very cold airmass to produce the strong winds.

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR…
JEFFERSON COUNTY IN ALABAMA…
EASTERN TUSCALOOSA COUNTY IN WEST CENTRAL ALABAMA…

* UNTIL 630 PM CST

* AT 548 PM CST…THE NATIONAL WEATHER SERVICE INDICATED A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 6
MILES NORTHWEST OF SYLVAN SPRINGS TO MCFARLAND MALL…AND MOVING
EAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE…
HUEYTOWN…FAIRFIELD…FULTONDALE…GARDENDALE…BESSEMER…
BIRMINGHAM…HOMEWOOD AND VESTAVIA HILLS.

THIS INCLUDES…
INTERSTATE 65 EXIT NUMBERS 250 THROUGH 272…
INTERSTATE 459 EXIT NUMBERS 1 THROUGH 33…
US 78 EXIT NUMBERS 81 THROUGH 91…
INTERSTATE 20 EXIT NUMBERS 62 THROUGH 140…
INTERSTATE 59 EXIT NUMBERS 130 THROUGH 143…

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1950’s January Thaw

| 1:00 pm January 25, 2015

The January thaw is a weather singularity. A singularity is an event that occurs more often than one would expect with chance.

The January thaw is a period of above normal warmth that frequently occurs in mid-Winter in the northeastern U.S. and eastern Canada. It is similar to Indian summer, another singularity which occurs in autumn. The January thaw usually occurs around the third week in January.

It was more like a January tropical heat wave than a thaw during this week in 1950. Much of the eastern United States was experiencing temperatures 25-30 degrees above normal by my birthday, January 25th. Of course, I hadn’t been born then. Cotton was blooming in South Carolina, some five months ahead of schedule. People worried that Mother Nature was out of control.

In actuality, a strong high pressure system off the Atlantic Coast was responsible for the 1950 January thaw. A very high amplitude pattern featured a big upper level ridge over the East and a very deep trough over the western U.S. The strong surface high was producing a strong southerly flow that bathed much of the eastern United States in warmth. High temperatures on the 25th included 87F in Del Rio, Texas; 83F in Little Rock; 78F in Nashville; 74F in Columbus, Ohio; 78F in Washington, D.C. and 80F in Augusta, Georgia. It was 78F in Birmingham and 80F in Montgomery. Birmingham recorded record highs on the 24th (78F), 25th (78F), and the 26th (76F).

Several January high temperature records were set, including Michigan’s with 72F at Ann Arbor and Chicago with 67F.

Meanwhile, bitter cold and snow was occurring over the Northern Plains. Morning lows on t he 25th included -34F at Williston, North Dakota and -32F in Glasgow, Montana.

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Clouds Return; Colder Again Monday

| 7:22 am January 25, 2015

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.

Didn’t the sunshine feel good yesterday? Even with the sunshine, temperatures across Central Alabama only managed to make the upper 40s with a few spots tipping into the lower 50s. We start the day out with sunshine, but clouds will be on the increase this afternoon and into tonight. Look for afternoon highs to climb into the upper 50s. A fast moving upper level storm system along with a surface low will move by us tonight and early Monday and it will bring some moisture with it, enough so that we’ll put rain chances in for tonight with the potential to hear a little thunder. Not enough instability for a severe weather threat, but perhaps some thunder.

As the upper short wave goes by early Monday, the temperatures will begin falling. Monday is likely to be one of those days where the temperature at 12:01 am is the high for the day. I expect temperatures to struggle to stay in the 40s during the day, so look for daytime temperatures to be in the lower and middle 40s.

We should see a warmup for the middle of the week as the upper air pattern shifts slowly into a weak ridge. But another fast moving short wave passing by on Thursday promises to bring some clouds to the northern half of Alabama. That short wave will be followed by yet another one Saturday which will see some clouds and perhaps some small chance for rain. The effects of all of these short waves will be to establish a long wave trough position over the eastern US.

By the time we move out into Week 2 or voodoo country, the GFS is suggesting a major long wave trough over the eastern US that will definitely be cold if this feature comes to verify. With a trough that deep over the eastern US, we could be looking at some record cold temperatures from the Central Plains to the East Coast. But you know how voodoo country can be, that feature may be gone or dampened in the runs tomorrow. We’ll have to watch and see.

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 Bill Murray
Brian Peters E-Warn (AL wx watches/warnings)

I’ll have the latest forecast for you this evening on ABC 3340 as I fill in for Meaghan Thomas. James Spann will be back with the next Weather Xtreme Video first thing on Monday morning. Enjoy your day and Godspeed.

-Brian-

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Hello Sunshine

| 1:32 pm January 24, 2015

After the foul Friday of weather, what a difference a day makes. We had quite a few clouds this morning, but those have moved on and mixed out, and we are seeing almost nothing but sunshine and blue sky this afternoon. After the cold start, with most location in Central Alabama near freezing, we are seeing an overall nice warm up as well, with upper 40s and 50s greeting you outside today. However, there remains a brisk northwest breeze keeping it feeling rather chilly at times this afternoon. The jackets are definitely needed if outside today. For tonight, it will be another cold night with a clear sky, temps once again head towards the freezing mark.

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A near rinse and repeat forecast for tomorrow, except temps will be about ten degrees warmer tomorrow afternoon. Of course there will remain plenty of sun, and tomorrow afternoon should be rather fantastic for the last Sunday in January. Get out and enjoy the weather if you have the chance to tomorrow.

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Sunshine Returns

| 6:52 am January 24, 2015

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.

The clouds and rain of the last 36 hours or so are exiting the state of Alabama and we should see a fairly rapid clearing during the morning. While the sunshine returns, it will remain on the cool side with highs rising only into the upper 40s for most locations.

We should see a fairly nice warmup on Sunday with highs climbing about 10 degrees with values reaching the upper 50s. But another trough will be coming down the pike providing another shot of cold air for Monday. While the system will be dry with just some clouds we should see highs once again struggle to climb out of the 40s.

A gradual warmup begins on Tuesday as the upper trough moves off the East Coast of the US returning us to a more zonal and warmer flow aloft. But there is no lack of impulses moving through the flow, so we’ll see clouds from time to time though the week stays essentially dry.

By next Saturday, a strong short wave will be digging into the Central Plains states that should bring us another round of wet weather for Sunday, perhaps beginning late Saturday. We’ll have to watch the timing on this system should it speed up or slow down. This system has some potential for producing another soaking for Central Alabama. Now we are verging into voodoo country, so no specifics yet, but this system also has some potential for producing some winter weather for some parts of the Southeast US. Too early for any specifics, but something to watch.

The overall flow pattern remains pretty active into Week 2. The pattern goes from a pretty chilly look around February 1st to a mild look around the 4th to another wet look around the 8th. So no lack of weather to keep us busy.

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 Bill Murray
Brian Peters E-Warn (AL wx watches/warnings)

I anticipate posting the next Weather Xtreme Video first thing on Sunday morning. You can always check back for updates here. Enjoy the sunshine and Godspeed.

-Brian-

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Late Night Look at Alabama’s Weather

| 12:03 am January 24, 2015

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A band of mixed precipitation is pushing east across the state tonight. Travel impacts this morning will be minor at worst over the northern third of the state: maybe some light accumulations on grassy areas or cars, and a few icy spots on bridges where the snow does accumulate.

Temperatures at midnight are in the lower and middle 40s in the I-20 corridor with 30s over the Tennessee Valley. It was 37F at Tupelo with a mix. Muscle Shoals had 37F with a light mix.

LOOKING UP FOR THE WEEKEND: The sun should reappear today, with skies becoming clear by mid to late afternoon. High temperatures will be in the upper 40s in the I-20 corridor, where the sun will take a little more time to pop out. It will actually be slightly warmer in the northwest, where there will be a longer duration of sunshine. Lows tonight will be in the middle 30s with a few freezing readings sprinkled across the area.

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