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Dr. Tim Coleman
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The new GOES satellite depicts a beautiful swirl of clouds around a big, closed upper low, centered near Memphis this afternoon. The weather pattern will remain unsettled this week, with mostly cloudy skies and at least a small chance for rain almost every day, as the upper-level pattern shifts from... Continue reading
Posted Apr 23, 2018 at WBRC First Alert Weather
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...SEVERE THUNDERSTORMS APPROACHING BIRMINGHAM METRO... A line of intense thunderstorms extends from Jasper to Bankhead Lake to Coaling to Centreville. The line is moving slowly east toward Jefferson County, but individual storms are moving almost due north. Right now there are at least three areas that show weak rotation...one approaching... Continue reading
Posted Apr 22, 2018 at WBRC First Alert Weather
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...Outbreak of severe storms with large hail and tornadoes expected late this afternoon over north and central Alabama... The ingredients are coming together. We did not expect all the low clouds this morning, but as temperatures rise (it has gone up steadily about 2 degrees per hour here in Trussville),... Continue reading
Posted Mar 19, 2018 at WBRC First Alert Weather
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...Chance for a severe weather outbreak, including hail and tornadoes, on Monday... The storm you see on water vapor satellite imagery above, coming on to the US Pacific Coast, could create big problems for us in north and central Alabama by Monday. Today has been beautiful, with temperatures in the... Continue reading
Posted Mar 17, 2018 at WBRC First Alert Weather
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The warm front that moved north of us last night, bringing some rain, has brought humid air back into central Alabama. With a little sun, temperatures have climbed into the 70s, and dewpoints are in the 60s, producing CAPE values near 1000 J/kg. With the front still close by, we... Continue reading
Posted Feb 28, 2018 at WBRC First Alert Weather
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...Winter Weather Advisory in Effect... This is a fascinating case of wintry weather and a difficult one to forecast. The SE regional radar above shows that the band of snow that's been going on for over 12 hours to the NW has entered NW Alabama. Slick roads are being reported... Continue reading
Posted Jan 16, 2018 at WBRC First Alert Weather
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...Winter Storm Watch for tomorrow from the National Weather Service... What appears to be the last one of 4 significant cold fronts to come through Alabama in the past two weeks or so will move through tomorrow morning, bringing a new round of very cold air into Alabama. But, there... Continue reading
Posted Jan 15, 2018 at WBRC First Alert Weather
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Above is an hour-by-hour plot of temperatures at Birmingham LAST WEEK, Sun Dec 31 through Sat Jan 6. Total 129 hours below freezing, average temperature 26.8. 5-day average temperature Mon-Fri was 25.1, in the 99th percentile for a cold 5-day period in BHM. We have already had 25 nights below... Continue reading
Posted Jan 10, 2018 at WBRC First Alert Weather
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The large, intense Arctic air mass is sitting to our north, as shown in noon temperatures below zero (some below -20 F) over most of Canada and the northern US, and below freezing as far south as Tennessee and Arkansas. A large area of high pressure associated with this cold,... Continue reading
Posted Dec 30, 2017 at WBRC First Alert Weather
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...MOST PROLONGED BITTER COLD SINCE 2010 COMING TO ALABAMA... The Northern Hemispheric polar projected map above shows the anomaly, or departure from normal, temperature expected on New Year's Day at 6:00 am. Notice that temperatures will be warmer than normal over the north pole and the eastern hemisphere, including Russia,... Continue reading
Posted Dec 28, 2017 at WBRC First Alert Weather
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...WINTER STORM WARNING CONTINUES... Snow, heavy at times, continues over Alabama this morning. The Birmingham airport has gotten snow at a rate of 1" per hour since 7:00 am, with 3" on the ground. Some spots a little farther south have up to 5". The heavy wet snow has caused... Continue reading
Posted Dec 8, 2017 at WBRC First Alert Weather
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...WINTER STORM WARNING NOW IN EFFECT FOR BIRMINGHAM METRO... Light snow began to fall around 3:00 am in Birmingham, but the snow has become heavier this morning, with visibilities dropping rapidly in the past hour, including only 1/4 miles at BHM airport, indicating heavy snow. These are the last two... Continue reading
Posted Dec 8, 2017 at WBRC First Alert Weather
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...WINTER WEATHER ADVISORY IN EFFECT... Precipitation already covers parts of Alabama on radar early this morning, however due to dry air, some of it is not reaching the ground. It has started raining lightly in Tuscaloosa and Demopolis, and it is snowing in south Mississippi right now! The rain will... Continue reading
Posted Dec 7, 2017 at WBRC First Alert Weather
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...WINTER WEATHER ADVISORY IN EFFECT FOR MOST OF OUR AREA FOR TOMORROW... The long-term cold air pattern has already started taking shape over the southeastern U.S. this week. Due to the long-wave nature of the upper trough bringing the cold air to the eastern U.S., it will be much slower... Continue reading
Posted Dec 7, 2017 at WBRC First Alert Weather
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As shown in the chart above, October is normally the month when we have the largest transition from warm weather to cold weather. Based on data since 1896 in Birmingham, AL, the daily average temperature (mean of the high and low each day, orange) decreases from 68.5 degrees on Oct... Continue reading
Posted Oct 19, 2017 at WBRC First Alert Weather
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...HURRICANE WARNING IN EFFECT ALONG ALABAMA GULF COAST... ...TROPICAL STORM WARNING IN EFFECT FOR BIRMINGHAM AREA... The first rainbands associated with Nate are moving onshore along the Gulf Coast, and a weak rainband is moving through central Alabama. Our winds are already picking up a little out of the southeast... Continue reading
Posted Oct 7, 2017 at WBRC First Alert Weather
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...HURRICANE WARNING NOW IN EFFECT FOR ALABAMA GULF COAST... ...LARGE SHIFT TO EAST IN LIKELY HURRICANE TRACK... Tropical Storm Nate is becoming better organized this afternoon, as big thunderstorms are starting to form close to the center. USAF found flight level winds of 56 mph this morning, and intensification to... Continue reading
Posted Oct 6, 2017 at WBRC First Alert Weather
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The center of the currently low-end Tropical Storm Nate is located over Honduras this evening. Interaction with the land of central America has kept the storm from intensifying too much today, although it did officially become a tropical storm at 7:00 am. It is also currently experiencing wind shear that... Continue reading
Posted Oct 5, 2017 at WBRC First Alert Weather
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Amazing NEXRAD radar imagery of Hurricane Maria around 2:00 am this morning. The image on the left shows rainfall intensity, along with concentric eyewalls. An eyewall replacement cycle (where an outer eyewall forms and overtakes the inner one) is occurring that is weakening the storm just a little, but not... Continue reading
Posted Sep 20, 2017 at WBRC First Alert Weather
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...TROPICAL STORM WARNINGS AND WIND ADVISORIES OVER ALABAMA... As of 3 am CDT, the center of Hurricane Irma is now located near Ocala, FL, and is moving NNW. It should move up into south Georgia by this afternoon, and into eastern Alabama somewhere near Auburn, still as a tropical storm... Continue reading
Posted Sep 11, 2017 at WBRC First Alert Weather
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Hurricane Irma has weakened somewhat since yesterday due to land interaction with Cuba, as its eye has been hugging the coast there for 12 hours. Maximum sustained winds are down to 125 mph (still a category 3 hurricane). However, recent aircraft info indicates that the pressure in the center of... Continue reading
Posted Sep 9, 2017 at WBRC First Alert Weather
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Hurricane Irma is still a Category 4 hurricane today, despite some weakening over the past 24 hours due to a combination of eyewall replacement cycles and interaction with some islands. Its intensity will fluctuate some until it makes landfall, but not by a lot, and it is expected to northward... Continue reading
Posted Sep 8, 2017 at WBRC First Alert Weather
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Hurricane Irma has remained a category 5 hurricane all day today, and maximum sustained winds are still 185 mph with gusts over 200 mph. It is moving just north of Puerto Rico tonight, and we are getting a good look at it from radar. Winds over 130 mph are widespread... Continue reading
Posted Sep 6, 2017 at WBRC First Alert Weather
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...HURRICANE IRMA NOW ONE OF THE STRONGEST ATLANTIC STORMS ON RECORD... Irma strengthened to a Category 5 hurricane this morning, and now has maximum sustained winds of 185 mph with gusts to 215 mph. Some computer models have indicated strengthening to sustained winds over 200 mph over the next two... Continue reading
Posted Sep 5, 2017 at WBRC First Alert Weather
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(Astronomy Club of Asheville) On August 21, 2017, one week from Monday, a total solar eclipse will cross the United States from coast to coast. I have talked to many people here in Alabama who know about the eclipse, but think it will really only affect areas to our north... Continue reading
Posted Aug 10, 2017 at WBRC First Alert Weather