Archive for July 10th, 2013
We are still watching some strong storms as they drop south from the Tennessee Valley and are now beginning to impact portions of Cherokee and Etowah Counties. These storms are slowly weakening and should continue to do so over the next few hours.
These storms are producing gusty winds, hail, very heavy rainfall and frequent lightning.
There are additional storms in northwestern Alabama that will be dropping across western portions of the state.
Late this evening there are still strong and severe storms across the Tennessee Valley. These storms continue to drop south across the Huntsville metro and severe thunderstorm warnings are in effect in the area. We will have to watch these storms the next few hours as they could impact some of our northeastern counties. Damaging winds, hail, torrential rain fall and frequent lightning are accompanying these storms. These storms are expected to weaken over, but we will have to keep an eye on them.
A very strong thunderstorm has dropped tremendous amounts of rain across the metro area. Widespread flash flooding is being reported, especially along Highway 280. Do not drive through flooded roads. This is a very dangerous and life-threatening situation. Some areas received over 2 inches of rain in a very short period of time.
THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A
* FLASH FLOOD WARNING FOR…
SHELBY COUNTY IN ALABAMA…
SOUTHEASTERN JEFFERSON COUNTY IN ALABAMA…
* UNTIL 930 PM CDT
* AT 628 PM CDT…NATIONAL WEATHER SERVICE INDICATED SLOW MOVING
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA.
RADAR ESTIMATES AS MUCH AS 3 INCHES OF HEAVY RAIN IN THE LAST HOUR
IN PORTIONS OF SOUTHERN JEFFERSON AND SHELY COUNTIES.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE…
VILLAGE…BARBER MOTORSPORTS PARK…BLUFF PARK…CAHABA HEIGHTS…
FOWLER LAKE…GREYSTONE…HARPERSVILLE…HIGHLAND LAKES…HOOVER
METROPOLITAN STADIUM…INDIAN SPRINGS VILLAGE…LAKE PURDY…
MAYLENE…MEADOWBROOK AND MOUNT LAUREL.
THIS IS A DANGEROUS SITUATION. RAINFALL FROM PERSISTENT RAINBANDS
WILL PRODUCE FLOODING IN LOW LYING AREAS AND ALONG STREETS. MANY
ROADS WILL BE CLOSED DUE TO HIGH WATER AND DRIVING IS NOT RECOMMENDED
DURING THE NEXT SEVERAL HOURS.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
Widespread showers and thunderstorms have developed across Alabama this evening. Some very strong storms are impacting the Metro area with very dangerous lightning, torrential rains and gusty winds. None of these storms are currently severe, but they could be rather strong. Flash flooding could become a serious threat with the storms. The more intense storms are across the southern sections of the city and they are making rush hour a headache. Interstates 65, 459, 20 and 59 are being impacted as well as Highways 150, 31 and 280. Some of the cities seeing the worst of these storms are Bessemer, McCalla, Hoover, Homewood, Pelham, Helena, Alabaster and Calera. This complex of storms is moving to the south.
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ACTIVE STORMS: Strong summer storms continue in scattered pockets across Alabama this afternoon. Heavier storms at 4:00 this afternoon were south of I-85 in East Alabama… flooding was reported from this band of storms in Auburn earlier. Across North Alabama, scattered strong storms continue as well. All of the showers and storms are moving southeast.
TONIGHT/TOMORROW: We will maintain a good chance of occasional showers and thunderstorms. The high resolution NAM model show a batch of showers and strong storms moving into the Tennessee Valley region of far North Alabama during the pre-dawn hours tomorrow, then moving down toward Birmingham/Tuscaloosa/Anniston/Gadsden between 6 and 10 a.m. And, by afternoon, those storms move down into South Alabama. We will lean in that direction in the forecast, with the best chance of rain and storms coming during the morning hours. A few strong storms are possible tomorrow with gusty winds, but organized severe weather for now is not expected.
FRIDAY/SATURDAY: These two days look rain-free, generally speaking, for the northern half of Alabama. Showers should be confined to the southern counties, and even there the activity will be pretty scattered. The high both days will be in the 86-90 degree range with a pretty good supply of sunshine.
SUNDAY AND NEXT WEEK: We will use the summer “broad brush” forecast… partly sunny days with the risk of “scattered, mostly afternoon and evening showers and thunderstorms. Highs 87-90 degrees, and the chance of any one spot getting wet for the first half of the week is about one in three. This, of course, is under the assumption that tropical weather issues won’t crop up here.
CHANTAL DEGENERATES: Hurricane hunters again today could not find a closed circulation with the system in the Caribbean, and NHC has dropped the advisories for now. With a weak, shallow system, it is very hard to determine what happens next, but the remnant wave could bring some significant rain to Central and South Florida by Friday and Saturday. We will keep an eye on it.
GULF COAST WEATHER: Showers and storms are likely tomorrow afternoon and tomorrow night from Panama City west to Gulf Shores, but the weather will be drier Friday with 7-9 hours of sunshine and only widely scattered showers. For the weekend, the TUTT low in the Gulf will be pretty far to the south, so it looks like fairly routine weather with 6-8 hours of sunshine Saturday and Sunday along with the risk of scattered showers and thunderstorms. Similar weather is likely next week for the coast unless Chantel decides to get her act together. Highs along the immediate coast will hold in the upper 80s, and the sea water temperature at the Dauphin Island Sea Lab this afternoon is a warm 87 degrees.
MOBILE BAY WATERSPOUT: A big one formed this afternoon, but did not produce any damage as far as we know. The image below is courtesy of John Theobald, who took the picture just off the runway at Brookley Aeroplex in Mobile.
See the Weather Xtreme video for the maps, graphics, and more details on this discussion.
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I enjoyed spending some time on the campus of the University of Alabama this morning at a weather seminar… good to see many NWS, TV, and EMA friends there. Look for the next Weather Xtreme video here by 7:00 a.m. tomorrow…