The Thursday morning web video is on the server:
http://beta.abc3340.com/weather/video.hrb
Interesting mass of rain and storms over Arkansas, Oklahoma, and west Tennessee this morning. Some of this could clip extreme north Alabama at some point today, but I don't expect any rain down this way. The surface air is very dry this morning with surface dewpoints in the low 40s.
Winds will really pick up over the next 36 hours in advance of the storms we expect tomorrow night. Winds today will gust to 25 mph, and tomorrow those gusts could reach 35 mph during the afternoon.
SEVERE WEATHER POTENTIAL: We are still looking at a line of severe storms moving through Alabama late tomorrow night and early Saturday morning. Sure looks like the storms will blow through in the ole midnight to 6:00 a.m. time frame. We still expect the primary threat to come from damaging straight line winds with the line.
Here are the severe weather parameters for midnight tomorrow night:
SB CAPE 775
2M AGL Dewpoint 65
Lifted Index -2.7
SWEAT Index 406
Total totals 49.9
850 mb wind speed: 62 kts
500 mb wind speed: 63 kts
Needless to say, the 850 wind is the number that really stands out here. The low level jet will really be screaming, and it won't take much to get those winds down to the surface with the squall line.
The surface dewpoint question is a valid one... you really want to see dewpoints of 65 or higher for a significant severe episode this time of the year. Don't see any numbers like that around here now, but with those howling winds tomorrow the dewpoints should rise rather quickly.
So, again, our main concern is a long, fast moving squall line that races through here sometime from midnight tomorrow night through 6:00 Saturday morning. If you have friends in RVs or campers at the Talladega Superspeedway, but sure and let them know of the threat.
REST OF THE WEEKEND: Models are trending cooler, and we will have to lower high temperature forecasts for Saturday on the next forecast update. Looks like highs on Saturday will be in the 60s with a cool northwest wind. Then, early Sunday, we go into the low 40s. Some of the colder spots might even reach the upper 30s.
Sunday should feature ample sunshine and daytime temperatures recovering into the 70s.
NEXT WEEK: Rain should begin on Tuesday as an inverted trough sets up across the deep south. There would be a few wet periods on Wednesday and Thursday as well....
http://beta.abc3340.com/weather/video.hrb
Interesting mass of rain and storms over Arkansas, Oklahoma, and west Tennessee this morning. Some of this could clip extreme north Alabama at some point today, but I don't expect any rain down this way. The surface air is very dry this morning with surface dewpoints in the low 40s.
Winds will really pick up over the next 36 hours in advance of the storms we expect tomorrow night. Winds today will gust to 25 mph, and tomorrow those gusts could reach 35 mph during the afternoon.
SEVERE WEATHER POTENTIAL: We are still looking at a line of severe storms moving through Alabama late tomorrow night and early Saturday morning. Sure looks like the storms will blow through in the ole midnight to 6:00 a.m. time frame. We still expect the primary threat to come from damaging straight line winds with the line.
Here are the severe weather parameters for midnight tomorrow night:
SB CAPE 775
2M AGL Dewpoint 65
Lifted Index -2.7
SWEAT Index 406
Total totals 49.9
850 mb wind speed: 62 kts
500 mb wind speed: 63 kts
Needless to say, the 850 wind is the number that really stands out here. The low level jet will really be screaming, and it won't take much to get those winds down to the surface with the squall line.
The surface dewpoint question is a valid one... you really want to see dewpoints of 65 or higher for a significant severe episode this time of the year. Don't see any numbers like that around here now, but with those howling winds tomorrow the dewpoints should rise rather quickly.
So, again, our main concern is a long, fast moving squall line that races through here sometime from midnight tomorrow night through 6:00 Saturday morning. If you have friends in RVs or campers at the Talladega Superspeedway, but sure and let them know of the threat.
REST OF THE WEEKEND: Models are trending cooler, and we will have to lower high temperature forecasts for Saturday on the next forecast update. Looks like highs on Saturday will be in the 60s with a cool northwest wind. Then, early Sunday, we go into the low 40s. Some of the colder spots might even reach the upper 30s.
Sunday should feature ample sunshine and daytime temperatures recovering into the 70s.
NEXT WEEK: Rain should begin on Tuesday as an inverted trough sets up across the deep south. There would be a few wet periods on Wednesday and Thursday as well....
on April 28, 2005, 7:42 am
www.dodahday.org
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