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Dr. Tim Coleman
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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 2 days ago 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
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...FLASH FLOOD WATCH THROGH TOMORROW... It has been another very rainy 24 hours here in central Alabama, and rain continues to fall over much of the area. At least it has lightened up somewhat over the Birmingham metro area, but rain will continue off and on for the rest of... Continue reading
Posted Aug 8, 2017 at WBRC First Alert Weather
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With a weak cold front to our north and an upper-level disturbance moving through, another round of rain and thunderstorms is moving into west Alabama, and will move across the Birmingham metro area, especially southern suburbs, over the next hour or so. These storms will produce lightning and maybe some... Continue reading
Posted Aug 7, 2017 at WBRC First Alert Weather
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Thunderstorms parked themselves over parts of central Alabama this afternoon, with the biggest flooding impact occurring in the northern and eastern suburbs of Birmingham. The BHM airport final rainfall total was 3.88", with most of that falling in about one hour. This brings the BHM rain total for July to... Continue reading
Posted Jul 24, 2017 at WBRC First Alert Weather
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...FLASH FLOOD WARNING MUCH OF JEFFERSON COUNTY... Strong thunderstorms continue to move across mainly the northern and eastern suburbs of Birmingham as of 3:00 pm. These storms are producing very heavy rainfall, wind gusts over 40 mph (measured 42 mph BHM airport), and almost constant lightning. The BHM airport has... Continue reading
Posted Jul 24, 2017 at WBRC First Alert Weather
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...SEVERE THUNDERSTORM WARNING SOUTHERN BIRMINGHAM METRO... From my UAH SWIRLL remote office here in Trussville, I have had very little rain but I have seen an intense lightning show just to my south, as intense storms moved in from St. Clair County and are now moving through Liberty Park, Inverness,... Continue reading
Posted Jul 17, 2017 at WBRC First Alert Weather
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...FLASH FLOOD WARNING PARTS OF BHM METRO... Scattered thunderstorms have returned to central Alabama this afternoon. What I found interesting was the concentration of storms over the BHM metro area. Often on a sunny day, the city gets a little bit hotter than surrounding rural areas due to several factors,... Continue reading
Posted Jul 11, 2017 at WBRC First Alert Weather
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(Atmospheric waves over Bluff Creek on the Warrior River, with lightning in a distant thunderstorm over 15 miles away. Looking north.) Monday night, we got quite the light show on the Warrior River! Upon seeing the radar picture below (my location is blue), drove the pontoon boat up to the... Continue reading
Posted Jul 7, 2017 at WBRC First Alert Weather
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...TORNADO WATCH IN EFFECT AGAIN... The low pressure center of what was once Tropical Storm Cindy is now centered over west TN, and the winds have really picked up over Alabama. At BHM, the winds are gusting over 30 mph away from any storms due to Cindy. There is also... Continue reading
Posted Jun 23, 2017 at WBRC First Alert Weather
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...TORNADO WATCH IN EFFECT... The spiral band in central Alabama has weakened significantly in the past hour, while the one in east Alabama intensified. However, the only tornado warning now in effect is in northeast Tallapoosa County. These storms are associated with spiral bands around the remnants of Tropical Storm... Continue reading
Posted Jun 22, 2017 at WBRC First Alert Weather
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...TORNADO WATCH UNTIL 10 PM... ...TORNADO WARNING SOUTH JEFFERSON AND WEST SHELBY... A band of thunderstorms continues to move NNE across central Alabama this afternoon. A storm out by itself, known as a supercell, produced what appears to have been a significant, albeit small, tornado in the Fairfield and Ensley... Continue reading
Posted Jun 22, 2017 at WBRC First Alert Weather
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The center of Tropical Storm Cindy has moved inland and is now over Louisiana. You can see that swirl on the radar. However, a band of thunderstorms is rotating into Alabama, more than 400 miles east of the center. As pressures fall quickly to our west as the air rushes... Continue reading
Posted Jun 22, 2017 at WBRC First Alert Weather
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A spiral band way east of Cindy is associated with some wind shear, and now a small supercell has spun up enough over Jefferson County that the NWS has issued a tornado warning. The possible tornado, indicated by radar, is NW of downtown, near Ensley and Smithfield, and moving NE... Continue reading
Posted Jun 22, 2017 at WBRC First Alert Weather
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(2:04 pm CDT at Emerald View Resort, Panama City Beach, FL) The water is closed to the public along the Gulf Coast beaches from Mobile to Panama City, due to high surf and the dangers of rip currents. The map below shows wave heights in the Gulf right now, and... Continue reading
Posted Jun 20, 2017 at WBRC First Alert Weather
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The official hurricane season started June 1, and the Gulf is a climatologically normal location for tropical storms to form in June. A large tropical depression is centered about 400 miles SSW of Mobile, but it is very disorganized at this time, and most of the thunderstorms are on the... Continue reading
Posted Jun 19, 2017 at WBRC First Alert Weather