Area Forecast Discussion
Issued by NWS Huntsville, AL
Issued by NWS Huntsville, AL
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505 FXUS64 KHUN 271939 AFDHUN Area Forecast Discussion National Weather Service Huntsville AL 139 PM CST Thu Nov 27 2025 ...New NEAR TERM... .KEY MESSAGES... Updated at 940 AM CST Thu Nov 27 2025 - Subfreezing temperatures continue tonight and Friday night. - Medium to high chances of showers return Saturday night through Sunday. - Another round of moderate to heavy rainfall is expected early next week. && .NEAR TERM... (Tonight) Issued at 139 PM CST Thu Nov 27 2025 No changes in the forecast, previous update remains on track. Happy Thanksgiving from all of us at NWS HUN! Previous Discussion: The Tennessee Valley sits underneath an upper level trough which has resulted in a cool northwest flow. CAA throughout the day will hold temperatures this afternoon in the mid to upper 40s, which is between 10-15 degrees below normal for this time of year. Winds 5-10 mph with gusts around 15 mph will make it feel a bit colder despite mostly sunny skies. As the winds subside this evening, temperatures will plummet dropping down into the low to mid 20s overnight. Make sure to bundle up as you head home this evening from your Thanksgiving holiday. && .SHORT TERM... (Friday through Saturday Night) Issued at 940 AM CST Thu Nov 27 2025 As we head into the weekend, the upper level trough lifts off to the northeast bringing back a more zonal pattern across the Southeast. High pressure located across the Mid-Atlantic regions brings easterly sfc flow across the local forecast area. Hence, keeping the cool airmass in place. Temperatures on Friday once again only rise into the mid to upper 40s. One last subfreezing night is in store Friday as light winds and mostly clear skies drop temperatures back down into the mid 20s. An upper level trough begins to dig down across the Plains on Saturday with a low pressure system developing along the base of the trough. A cold front to the south of the low will move into the Tennessee Valley late Saturday. This will push the sfc high pressure further to the east. As a result, our sfc flow veers from the east to SSE bringing a gradual warming trend to the local area. Temperatures on Saturday rise into the lower 50s. Not nearly as cold Saturday night as cloud cover increases ahead of our next system. Low chances of rain arrive Saturday night from west to east. && .LONG TERM... (Sunday through Wednesday) Issued at 946 PM CST Wed Nov 26 2025 Wintry mix, in particular FZRA, seems unlikely early Monday morning as ensemble guidance soundings show dry air arriving before the temperatures drop below freezing. Lowered PoPs between 06-12z Monday to remove the mention of FZRA in the grids with this mornings forecast update. Previous Discussion: By Sunday morning, the cold front and the associated rain showers will be moving from west to east across the forecast area. Between 0.5 to 1 inches of rain will be possible from Saturday night into Sunday night. Precipitation chances will diminish Sunday night, and temperatures behind the front will fall to near or below freezing across most of the area. There is a low probability for a brief period of a light rain/snow mix (depending on the timing of the subfreezing air and if it overlaps with any residual moisture), especially in our southern middle Tennessee counties. However, any wintry precipitation is would be very brief and light, with no impacts anticipated. Temperatures will quickly rise above freezing, and Monday is expected to be mostly cloudy with only scattered showers. High temperatures will reach the mid to upper 40s during the day. By Monday night, an upper level trough is likely to form more showers and thunderstorms across the Southeast. The low pressure will most likely be to our south, and the combination of strong upper level forcing with isentropic lift should be enough for widespread rain through Tuesday, with heavy rain possible. Around 1 inch of rain seems most likely area wide, but this is a low confidence forecast. The NBM shows roughly a 30% probability of rainfall totals above 1 inch, and heavier rainfall is possible. There will once again be a slight chance for very light wintry precipitation during a brief window after the front passes through Tuesday night, though confidence in this forecast is still very low at this point. The position and track of the low is still changing significantly with each model run, so there is very little confidence in any frozen precipitation. Flurries would be most likely to mix in with the rain in northwestern Alabama and southern Tennessee. The storm system should be moving out quickly, and precipitation will come to an end Wednesday morning. Wednesday will be drier and sunnier, and high temperatures will be near 50. && .AVIATION... (18Z TAFS) Issued at 1104 AM CST Thu Nov 27 2025 VFR conditions with clear skies continue through the TAF period. Breezy NW winds with gusts 10-15 kts will subside after sunset tonight. && .HUN WATCHES/WARNINGS/ADVISORIES... AL...None. TN...None. && $$ NEAR TERM...GH SHORT TERM....GH LONG TERM....IM AVIATION...GH