textproduct: Huntsville

KEY MESSAGES

Updated at 712 PM CDT Mon Aug 10 2026

- Daily low to medium chances of thunderstorms are expected through Wednesday. The primary hazards will be gusty winds, heavy downpours, and frequent lightning.

- High chances of meeting Heat Advisory Criteria (105F) or higher areawide from the weekend into next week. Heat Products will be needed.

NEAR TERM

(Tonight) Issued at 250 PM CDT Mon Aug 10 2026

Scattered showers and storms can be seen on radar and satellite moving ESE across the TN Valley. Coverage over our CWA does seem lower than over the weekend with highest coverage of showers and storms to our south. Through the remainder of the afternoon low to medium chances of showers and storms will remain with threats of frequent lightning and heavy rainfall.

Models indicate that any showers and storms present will dissipate just after sunset with clear conditions overnight. Low chances of fog will again be in the forecast with best chances in valleys and along water ways.

SHORT TERM

(Tuesday through Thursday) Issued at 932 AM CDT Mon Aug 10 2026

Over the short term forecast, ridging and high pressure will amplify over the SE CONUS. This will allow temps to slightly warm with highs in the 90s area wide. The continued SW flow will support enough moisture to maintain our diurnal storms chances Tuesday and Wednesday. The unchanged environment will mean additional days of threats of heavy rain, frequent lightning, and gusty winds with any and all storms. Wednesday forward, high pressure will nudge slightly north and begin to lower our afternoon PoPs through the end of the weak. In return, heat will become our primary concern. A slight increase in temperatures paired with dew points remaining in the 70s looks to push heat indices near and above Heat Advisory Criteria of 105. Heat products may be needed on Wednesday for portions of the area with a high chance of heat products area wide on Thursday. For anyone participating in outdoor activities please make sure to take proper heat precautions. Take frequent breaks, remain hydrated, and wear lose light clothing.

LONG TERM

(Wednesday night through Sunday) Issued at 1117 PM CDT Sun Aug 9 2026

The ridge continues to build over the southeast Wednesday night into Friday. This should really lower shower/storm chances to between 10 and 30 percent in the afternoon. Highs will likely rise into the mid 90s at least by Friday (maybe Thursday). Based on forecast 925 mb temperatures, conditions could be hotter, maybe some upper 90s in a few locations. This will likely amplify a heat wave that will continue into the weekend. Highs in guidance look a bit low based on forecast 925 mb temperatures.

On Friday, most models build the center of the upper ridge over Arkansas and Mississippi. This further strengthens the upper ridge over the area. This should push highs into the 95 to 100 degree range. The heat wave will likely peak over the upcoming weekend. With some 925 mb temperatures forecast, we could climb over the century mark during that period. Extreme heat products may be needed over the weekend.

AVIATION

(00Z TAFS) Issued at 712 PM CDT Mon Aug 10 2026

At TAF issuance, scattered convection was in progress ~25nmi west of KMSL, moving east 5-10kt. Left VCTS in the TAF for KMSL early in the TAF. Showers/thunderstorms otherwise should dissipate as we go into late evening and overnight. Patchy fog cannot be ruled out around KMSL; confidence however was not high enough to include in the TAF. VFR weather is forecast for the overnight with light and variable winds. Winds a few hours after daybreak should become SW 5-10kt. Strong daytime heating of a humid environment will produce CU/TCU during the course of the late morning to the afternoon. Isolated to scattered convection could develop Tue afternoon. Have a PROB30 to account for this in both terminals.

CLIMATE

Issued at 712 PM CDT Mon Aug 10 2026

The Climate Prediction Center has included the whole area in a Moderate to a High Risk for Much Above Normal Temperatures for August 18th through August 24th. Therefore, there is a 40-60% chance for temperatures above 95-97 degrees F during this period.

More information on the CPC U.S. Hazards Outlook can be found at: https://www.cpc.ncep.noaa.gov/products/predictions/threats/threats.php

HUN WATCHES/WARNINGS/ADVISORIES

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