746 FXUS64 KBMX 112349 AFDBMXArea Forecast Discussion National Weather Service Birmingham AL 649 PM CDT Thu Sep 11 2025
...New SHORT TERM, AVIATION...
.SHORT TERM... (Tonight through Friday) Issued at 649 PM CDT THU SEP 11 2025
A few storms are actually on radar as we approach sunset across northern Alabama, associated with an upper level shortwave and 500mb vort max that will continue to move southeastward over the region. With plenty of dry air aloft, microburst composites were running high during the peak heating of the day and led to a few downburst-type wind reports across far northern Alabama. A slight chance of a shower or storm was added across far northern counties as a result, and we`ll have to see if some of these hold together a little longer into the late evening hours. Some of the CAMs are actually hinting at isolated storm development along and west of the I-65 corridor after midnight tonight, most likely due to mesoscale boundary interactions.
Could a few folks see a "surprise" shower or storm during the overnight hours? Perhaps, and with the CAMs presenting the possibility, will probably need to add in a slight chance of a mesoscale boundary initiated shower or storm during the overnight hours. Otherwise, most locations will remain dry and mostly clear as temperatures fall into the low to mid 60s. Dry and hot conditions will continue into the day on Friday as the 500mb ridge over Texas and Oklahoma continues to build eastward.
56/GDG
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.LONG TERM... (Friday night through next Wednesday) Issued at 145 PM CDT THU SEP 11 2025
Dry conditions will continue through the long term. The daytime heat will build through the period, largely aided by decreasing soil moisture. Rain chances through the period remain at 5 percent or less through at least the middle of next week.
/61/
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.AVIATION... (00Z TAFS) Issued at 649 PM CDT THU SEP 11 2025
VFR conditions will continue through the forecast period. Light northerly to northeasterly winds will become variable or calm overnight. Light northeasterly winds are expected once again on Friday.
56/GDG
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.FIRE WEATHER...
The dry and hot weather pattern will continue through our 7 day forecast period. Min RHs will drop into the 30% range for most of the area again this afternoon and this trend will persist into next week. The center of the high pressure will build overhead over the weekend, leading to slightly higher daytime highs. This will result in MinRHs dropping into the 25-30% range for many locations on Saturday and Sunday. Although values are currently forecast to remain above critical thresholds, drying soils will likely lead to expanding drought conditions. Winds should remain generally light with occasional gusts due to daytime mixing.
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.PRELIMINARY POINT TEMPS/POPS... Gadsden 62 88 61 89 / 20 0 0 0 Anniston 63 87 62 87 / 0 0 0 0 Birmingham 67 90 66 90 / 0 0 0 0 Tuscaloosa 68 92 66 92 / 0 0 0 0 Calera 66 90 64 90 / 0 0 0 0 Auburn 64 88 64 87 / 0 0 0 0 Montgomery 65 91 65 89 / 0 0 0 0 Troy 64 88 64 87 / 0 0 0 0
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.BMX WATCHES/WARNINGS/ADVISORIES... None. &&
$$
SHORT TERM...56/GDG LONG TERM....02 AVIATION...56/GDG
NWS BMX Office Area Forecast Discussion