Late Night Severe Weather Thoughts… Sunday Update – 11:20pm
April 27, 2014 Leave a comment
Good Sunday night! As of the 11pm hour, things are very quiet across Alabama. Things will change during the afternoon hours on Monday, as severe weather breaks out across Alabama. We have been watching for round 1 during the early morning hours of Monday, but that round looks very minor at this time; in-fact, most of the area will be dry through the morning hours, especially south of I-20. A decaying line of showers and storms will die out as they reach northwest Alabama. There is a chance these morning storms will remain northwest of I-20. Our main concern will occur Monday evening and Monday night. This appears to be a significant severe weather risk, so please remain weather alert!
What to expect: As the atmosphere heats up on Monday, lift and wind shear will gradually increase across the area. This will set the stage for supercell thunderstorms to develop once the cap breaks sometime during the mid afternoon hours on Monday. Since this should start off as supercells, it will be hard to tell a start/end time for a specific area. Just be aware that severe weather is possible in your area as early as 4pm and lasting as late as sunrise Tuesday morning. This round of severe storms will gradually come to an end from west to east by sunrise Tuesday morning. These storms will bring the risk of tornadoes, damaging winds, hail and flash flooding. Some storms may produce a long track, strong tornado. The highest risk of severe weather and tornadoes will occur near and northwest of Linden to Marion to Clanton to Anniston. Understand, there’s still a risk of severe weather south of these areas, but the risk is a little lower.
Most severe weather ingredients are matching for Monday afternoon, evening and overnight. While this appears to be a big severe weather risk, this will not reach the historic status like April 27th. I’m not sure why people keep asking, “will this be like April 27th, 2011?’ We had 62 tornadoes in Alabama on that day, and it takes a very unique event for that to occur. The ingredients are high, but not high enough to produce a huge number of tornadoes like on that date. That being said, it only takes on tornado in your area to cause major issues for you. I do expect several tornadoes across west and central Alabama. The best word of advice I can give you is not to worry if this will be like April 27th, but to have a plan of action incase a tornado moves in your area. We will compare events after it’s over and the stats have been released.
A final round of strong to severe storms will develop and spread across Alabama Tuesday afternoon and evening. This round all depends on how much heating we have or how much time the atmosphere has to recover after the morning storms on Tuesday. The longer the rain and clouds stick around on Tuesday, the lower the air temperature will be and the more stable the atmosphere will be. The risk will be lower on Tuesday afternoon and evening, if we remain cool and stable all day. If it gets warmer and we have several hours of a break between the morning and afternoon round, the risk Tuesday afternoon and evening will increase. Remain alert on Tuesday, incase the atmosphere has time to recover and produce severe weather. These threats will include damaging winds, tornadoes, hail and flash flooding.
Storm event rain totals between what fell today and what falls through late Tuesday night will reach 3″ to 6″ for most of west and central Alabama.
What to do: Go over your severe weather plans. I know it’s been a while since we’ve had a big risk, so it’s important to go over that plan incase you don’t have much warning. Make sure the alert on your NOAA Weather Radio is turned on. If you don’t have one, go out and get a NOAA Weather Radio that’s programmable county by county. A midland NOAA Weather Radio is good. When the severe weather moves in, we’ll be on TV talking about it. During a tornado warning, we will be on air non-stop with the latest. Remember, lowest floor of your home, in a closest or bathtub, in a basement if possible, away from windows. If you live in a Mobile Home or car, find shelter elsewhere…
If your area goes under a tornado warning, I’ll be on TV to let you know the latest. Make sure you have a source to wake you up incase a tornado warning is issued. A NOAA Weather Radio is a great tool to wake you up and alert you if a tornado approaches. You can then turn on the TV to WVUA, and we’ll be on there for the exact track and latest information.
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Richard Scott
WVUA Chief Meteorologist
rscott@wvuatv.com
Twitter: Richard_wvua