742 FXUS64 KBMX 050120 AFDBMXArea Forecast Discussion National Weather Service Birmingham AL 820 PM CDT Thu Sep 4 2025
...New AVIATION...
.SHORT TERM... (This evening through Friday) Issued at 1209 PM CDT THU SEP 4 2025
Water vapor imagery early this afternoon depicts an upper level trough stretching from the Great Lakes region down to the Southeast. At the surface, a cold front can be analyzed to our northwest across northern Tennessee into eastern Arkansas. As of writing, a couple lingering showers can be seen moving across east-central Alabama. This activity is leftover from a couple rogue showers and storms that developed this morning. While most locations will remain dry through the day, there is a low chance for isolated showers and storms across our northern areas as a shortwave rotates around the base of the trough. Friday looks to remain dry for most of the day. Rain chances begin to increase during the evening and overnight hours as the aforementioned cold front begins to move south across the state.
Friday looks to be our warmest day with temps climbing into the low to mid 90s across the region. A "cool down" is in store over the weekend as much drier air filters in behind the front.
95/Castillo
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.LONG TERM... (Friday night through next Wednesday) Issued at 1209 PM CDT THU SEP 4 2025
Not many changes needed with this long term forecast update. The front looks to work its way into the state late Friday, pushing south through the day Saturday. Continued with a 30-40% chance of showers and thunderstorms. In the wake of the front, much drier air will move across the state with PWATs falling below 1". This will help keep us dry Sunday through much of next week. Ensembles want to dry to bring moisture back by the middle of next week but without any forcing, kept the forecast dry. Temps through the long term remain pretty steady with highs in the 80s and lows in the 60s.
95/Castillo
Previous long-term discussion: (Friday night through next Wednesday) Issued at 1240 AM CDT THU SEP 4 2025
The front will attempt to work into Central Alabama Friday night into Saturday afternoon. Without a ton of moisture to work with, widespread rainfall appears unlikely with the front at this time. However, rain chances have increased to 30-40% across northern and central counties Saturday afternoon and coverage appears more than this time last night. Saturday will still feature highs in the low to mid 90s across southern and southeastern counties ahead of the front before Central Alabama sees the return of low to mid 80s in most areas Sunday and beyond. Additional rain chances appear possible during next week across southeastern counties, however confidence is currently low.
12
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.AVIATION... (00Z TAFS) Issued at 802 PM CDT THU SEP 4 2025
TAF sites are expected to be generally VFR for the next 24 hours. The exception may be at TCL. Put in a TEMPO 10-13z for some patchy fog possible. This should be fairly isolated in nature. Otherwise, winds will be generally light/variable overnight and SW-S 6-8kts with mixing during the day Fri.
08
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.FIRE WEATHER...
Min RH values will range from 40-50% this afternoon and 30-45% Friday afternoon across Central Alabama, with chances for isolated to scattered showers across northern and central portions of the area through this afternoon. Moisture values will remain relatively steady for the next few days, and will be above critical thresholds. 20ft winds will be west-southwest up to 5-7 mph today and Friday. There are no fire weather concerns at this time.
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.PRELIMINARY POINT TEMPS/POPS... Gadsden 66 93 69 89 / 10 10 20 40 Anniston 68 92 70 89 / 10 10 10 30 Birmingham 71 94 72 89 / 10 0 20 40 Tuscaloosa 71 95 73 90 / 0 0 10 30 Calera 70 95 72 91 / 0 0 10 30 Auburn 69 92 71 90 / 0 0 0 10 Montgomery 70 95 71 92 / 0 0 0 10 Troy 68 93 70 91 / 0 0 0 10
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.BMX WATCHES/WARNINGS/ADVISORIES... None. &&
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SHORT TERM...95/Castillo LONG TERM....95/Castillo/12 AVIATION...08
NWS BMX Office Area Forecast Discussion