Area Forecast Discussion
Issued by NWS Birmingham, AL
Issued by NWS Birmingham, AL
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098 FXUS64 KBMX 300732 AFDBMX Area Forecast Discussion National Weather Service Birmingham AL 232 AM CDT Tue Apr 30 2024 ...New LONG TERM... .SHORT TERM... (Today through Wednesday) Issued at 1252 AM CDT TUE APR 30 2024 The shortwave is moving through the area at this time. We should see coverage continue to expand through the night and into the morning hours. A few rumbles of thunder is possible but most of the activity will be a soaking rainfall The rain should be out of east Alabama by sunset. There will be a slight change in the air mass as surface winds become northerly on Wednesday. The humidity will drop some but afternoon temperatures will warm into the middle and upper 80s. 16 && .LONG TERM... (Wednesday night through next Monday) Issued at 232 AM CDT TUE APR 30 2024 Mid-level ridging extending from the Gulf through the eastern CONUS Thursday will result in above normal temperatures for early May. A convectively enhanced shortwave/MCV moves in from the west late Thursday afternoon and Thursday night. Mid-level moisture increases but low-levels remain fairly dry, so will only include low chances for showers in the forecast. Quasi-zonal flow aloft will then set up for the rest of the period, north/northeast of subtropical ridging building over Mexico and the southwestern Gulf. Various weak shortwaves emanating from the Southern Plains combined with above normal PWATs for this time of year will result in at least isolated to scattered showers and storms each day, highest chances north further removed from the ridge. A bit more coverage will be possible Friday afternoon and Friday night across the far north as a cold front stalls to our north and then lifts back to the north. 32/Davis && .AVIATION... (06Z TAFS) Issued at 1252 AM CDT TUE APR 30 2024 A shortwave is currently moving through the area. We are going to see an increase in showers through the night with a slight chance of thunder. Right now the chances for thunder remain less than 30 percent so will leave it out of most TAFS, with the exception of TCL, but amend if needed. As the rain moves in, ceilings will drop to MVFR, with some tempo IFR across the north. Big improvements after 18z west of I-65, 21z for the rest of the sites. 16 && .FIRE WEATHER... Showers and a few storms will continue through the morning. The rain should exit east Alabama by sunset tonight. 20 foot winds will become west 6-8 mph today. Rain free conditions Wednesday and Thursday with RH values dropping into the 30s. 20 foot winds will be from north around 3-6 mph on Wednesday. the Another round of wetting rains return on Friday. && .PRELIMINARY POINT TEMPS/POPS... Gadsden 78 56 84 56 / 80 0 0 0 Anniston 78 58 85 58 / 80 0 0 0 Birmingham 80 60 85 61 / 60 0 0 0 Tuscaloosa 82 60 87 61 / 30 0 0 0 Calera 80 60 85 60 / 50 0 0 0 Auburn 79 62 85 63 / 60 10 0 0 Montgomery 83 62 87 61 / 60 0 0 0 Troy 82 61 87 60 / 60 10 0 0 && .BMX WATCHES/WARNINGS/ADVISORIES... None. && $$ SHORT TERM...16 LONG TERM....32/Davis AVIATION...16