textproduct: NWS Birmingham

KEY MESSAGES

Updated at 503 AM CST WED DEC 24 2025

- Areas of dense fog are expected to reduce visibility to 1/4 mile or less across our southern counties this morning. A Dense Fog Advisory is in effect until 9 AM.

- Above-normal temperatures are expected into the weekend, with highs running 15-20 degrees above average, and lows running 15 degrees above average.

- A front is currently forecast to sweep across the region on Sunday into Sunday night, swinging temperatures back to below normal to start next week.

DISCUSSION

(Thursday through next Wednesday) Issued at 1144 PM CST TUE DEC 23 2025

Deep ridging in place over the Gulf Coast region will contribute to well above average temperatures over the next several days with a significant airmass change expected early next week.

Tonight, advection fog is quickly spreading northward from the Gulf Coast. Current obs are showing 1/4 mile visibilities across southwestern AL. HREF probabilities also indicate high chances (70-80%) of reaching Dense Fog Advisory criteria across our southern counties, so I went ahead and issued the advisory through 9 AM. To our north, a weak front will stall east to west across the Tennessee Valley, and we are seeing low-level cloud cover across our northern counties associated with that, but the boundary will remain well to our north and no rain in expected. In fact, the airmass will remain quite dry through the week. We'll be in shorts and t-shirts for Christmas with daytime highs in the mid 70s and overnight lows in the 50s.

Early signals indicate the ridge will break down by this weekend as a more organized upper-level trough advances across the Northern CONUS and towards the Great Lakes region. A surface low will develop over the Central Plains and rapidly eject towards Ontario at the start of next week, so we're expecting an associated cold front to bring rain to Central Alabama in the Sunday/Monday timeframe. Behind the front, a strong northwesterly blast of Winter air will bring a rapid end to our shorts and t-shirts weather.

86/Martin

AVIATION

(12Z TAFS) Issued at 503 AM CST WED DEC 24 2025

A thick layer of fog continues to climb north, with its primary sphere of influence remaining at KMGM and KAUO. Here, IFR/MVFR VIS and CIGs will be likely through 24/16z. Elsewhere, patchy fog will be possible, but confidence was not high enough to carry it anywhere other than KTCL. Fog will be possible there through 24/16z as well. Otherwise, expect mixing into VFR category area- wide shortly after then.

/44/

FIRE WEATHER

Southerly winds will continue to increase today, ushering in plenty of moisture from the Gulf. MinRH values will generally range above 50% into next weekend, with mixing heights adjusting with the cloud cover. No organized rain chances are anticipated through the workweek, with drought conditions persisting for the foreseeable future. Lower RH are anticipated behind the front on Monday and will need to keep an eye on the winds as RH values will be in the 20s.

CLIMATE

Issued at 1255 AM CST MON DEC 22 2025

Record High Temperatures:

December 24: KBHM: 77/1964 KEET: 74/2016 KANB: 78/1964 KTCL: 86/2019 KMGM: 79/2016

December 25: KBHM: 78/2016 KEET: 79/2016 KANB: 78/2015 KTCL: 80/2016 KMGM: 82/2016

December 26: KBHM: 76/2021 KEET: 75/2016 KANB: 78/2015 KTCL: 75/2021 KMGM: 82/2015

December 27: KBHM: 77/2015 KEET: 77/2015 KANB: 76/2015 KTCL: 79/2015 KMGM: 80/2016

PRELIMINARY POINT TEMPS/POPS

Gadsden 75 51 74 52 / 0 0 0 10 Anniston 75 53 74 54 / 0 0 0 10 Birmingham 75 54 73 55 / 0 0 0 10 Tuscaloosa 75 53 74 55 / 0 0 0 10 Calera 77 53 75 53 / 0 0 0 10 Auburn 75 54 73 54 / 0 0 0 10 Montgomery 75 53 75 53 / 0 0 0 0 Troy 75 53 75 52 / 0 0 0 0

BMX WATCHES/WARNINGS/ADVISORIES

Dense Fog Advisory until 9 AM CST this morning for the following counties: Autauga-Barbour-Bullock-Dallas-Greene-Hale-Lowndes- Marengo-Montgomery-Perry-Pike-Sumter.