textproduct: Huntsville

KEY MESSAGES

Updated at 935 PM CST Tue Nov 10 2026

- Medium chances (40-60%) for showers and thunderstorms Wednesday evening, primarily along and north of the TN River.

- Hard/killing freeze conditions expected overnight this weekend with temperatures in the upper 20s.

NEAR TERM

(Today) Issued at 408 AM CST Wed Nov 11 2026

Over the course of the near term period, a decaying mid-level trough in the southern stream will travel southeastward into the western FL Panhandle from an initial position over the Red River Valley of north TX/southern OK. This will occur as a more intense northern stream wave digs from western SD into IL. A modest increase in WSW flow aloft and elevated warm advection ahead of the lower latitude disturbance will continue to support an expanding altostratus layer (and some virga) across the region early this morning. However, with current temps in the u30s-m40s and dewpoint depressions between 0-2F, brief development of patchy mist and fog could still occur (especially near large water sources).

Throughout the day today, winds aloft will veer to WNW (in the wake of the departing southern stream shortwave trough) as the low-level jet backs to the west and strengthens to 25-35 knots in response to the digging northern stream wave and related surface low (which should reach the IN-OH border by 0Z). This configuration will support the development of lower stratus clouds over the course of the morning, in conjunction with a returning plume of boundary layer moisture. As dewpoints rise into the mid 50s, a few light showers may occur at any point in the 14-22Z timeframe and POPs have been increased slightly (into the 15-25% range) to account for this scenario. Highs this afternoon will once again reach the u60s-l70s.

SHORT TERM

(Thursday through Friday) Issued at 935 PM CST Tue Nov 10 2026

Post-frontal conditions bring dry conditions and strong CAA into the area from the northwest with afternoon highs capped in the upper 50s to lower 60s on Thursday. If you think that's chilly, be sure to bundle up on Friday because highs are forecast to remain in the upper 40s to lower 50s. Overnight lows during this short term period are forecast to drop into the 30s throughout the area. Even colder conditions are on the horizon this weekend, which is detailed in the long term forecast discussion below. Be sure to dress in warm layers if venturing outdoors!

LONG TERM

(Friday night through Tuesday) Issued at 935 PM CST Tue Nov 10 2026

Widespread freezes are expected both Saturday and Sunday mornings as a large upper low/trough over the eastern CONUS slowly shifts east. A negatively tilted trough axis will enter the Plains through the western Gulf of America by Sunday. The southern stream Jet will help to strengthen this trough over the Gulf, but also keep surface cyclogensis and the low track in the central Gulf. High pressure will remain a dominant feature over the eastern Great Lakes and OH valley. The combination of the high and low positions will maintain an easterly dry and cool flow across the TN valley. Only slight temperature modifications will result Monday and Tuesday, with highs in the upper 50s to around 60, and lows in the upper 20s to lower 30s in southern middle TN and lower to middle 30s in north AL.

AVIATION

(12Z TAFS) Issued at 547 AM CST Wed Nov 11 2026

There have been no changes to previous aviation forecast reasoning. Shortly after sunrise, a lower VFR stratus layer is predicted to become established within a northeastward expanding plume of low-level moisture (ahead of a developing area of low pressure to our NNW). Lgt SSW flow will veer to SW and increase to 10G18 kts around this time, as well. Although a few lgt SHRA may develop within this regime as early as 14Z, a more focused band of SHRA is expected to occur as a cold front (attached to the developing low) sweeps southeastward across the region this evening. Thus, with fropa expected ~2Z/MSL and ~3Z/HSV, we have included PROB30 groups (for SHRA and MVFR vsby/cig reductions) in the 6-hr period leading up to this. A scattered coverage of stratocu is expected in the wake of the front, as sfc winds veer to WNW.

HUN WATCHES/WARNINGS/ADVISORIES

AL...None. TN...None.