Area Forecast Discussion
Issued by NWS Birmingham, AL
Issued by NWS Birmingham, AL
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695 FXUS64 KBMX 302337 AFDBMX Area Forecast Discussion National Weather Service Birmingham AL 537 PM CST Sun Nov 30 2025 ...New DISCUSSION, AVIATION... .KEY MESSAGES... Updated at 535 PM CST SUN NOV 30 2025 - Significant rain amounts of one to two inches on average are expected across central Alabama through Tuesday. - Widespread freezing temperatures will return Tuesday night through Wednesday morning. - Another storm system is poised to arrive by the end of the upcoming week with an additional opportunity for significant rain. && .DISCUSSION... (This evening) Issued at 535 PM CST SUN NOV 30 2025 Did some tweaks on the PoPs to slow down a few hours of the exiting of the rain in the southeast. There is a pretty defined back-edge and that should clear the forecast area by Midnight at least. Colder air filters in behind the line, but could be modified a touch if clouds hang tough, like models tend to struggle with. If the clouds do hang on, expected temperatures to be 2 to 4 degrees above forecast in the north. We could potentially see some clearing after sunrise before the next shortwave works in. 16 Previous discussion: (Through next Saturday) Issued at 148 PM CST SUN NOV 30 2025 The next shortwave trough in the train will dip into the lower MS valley on Monday, and help induce an inverted trough/surface low along the Gulf coast. This will begin the overrunning process into Alabama, with another period of widespread rain expected Monday and Monday night. While there might be enough lift provided by synoptic scale and isentropic processes to produce a few rumbles of thunder, it won`t be widespread and certainly shouldn`t even approach strong (let alone severe) levels. As that system departs the area on Tuesday, the rain will depart with it, leaving dry and chilly weather for the mid-week period. Models are starting to converge on a solution regarding the end of week system, and rain chances have accordingly started to ramp up. && .AVIATION... (00Z TAFS) Issued at 535 PM CST SUN NOV 30 2025 Low clouds hanging tough behind the line of showers moving through area. Rain is generally only at MGM and AUO and will be exiting these areas shortly. Opted to hang on to the lower clouds a touch longer than model guidance with the stubbornness of cold air stratus. You can see some clearing to our northwest on satellite, but you can also see some expansion in MS to the north. Held off the clearing till generally 12z with another round of low clouds moving in with after 16z in the west and 19z in the west. 16 && .FIRE WEATHER... A series of storm systems will bring at least two waves of rain to Central Alabama through Tuesday afternoon. RH values will remain elevated through Tuesday as a more significant system moves through the region and widespread soaking rainfall is forecast. Dry weather returns late Tuesday through the mid-week period. && .PRELIMINARY POINT TEMPS/POPS... Gadsden 31 51 43 44 / 10 70 100 40 Anniston 35 54 45 45 / 20 70 100 40 Birmingham 36 52 42 44 / 10 70 100 30 Tuscaloosa 35 52 41 44 / 10 70 100 20 Calera 36 55 44 45 / 20 70 100 30 Auburn 44 58 51 51 / 50 60 100 40 Montgomery 46 61 50 51 / 40 60 100 30 Troy 47 62 53 54 / 50 60 100 30 && .BMX WATCHES/WARNINGS/ADVISORIES... None. && $$ DISCUSSION...16 AVIATION...16