textproduct: Huntsville

KEY MESSAGES

Updated at 950 AM CDT Wed May 27 2026

- Medium to high chances (50-70%) for showers and storms exist across much of the TN Valley through the weekend.

- Drier conditions are expected by Monday/Tuesday of next week.

NEAR TERM

(Rest of Today and Tonight) Issued at 950 AM CDT Wed May 27 2026

Another day, another shot of more showers and thunderstorms across the TN Valley, with convection now beginning to bubble up on regional radars upstream of us (across Central portions of AL) at this hour. This will be the trend once again for the remainder of today, diurnal showers and storms will develop and move N/NE across the CWFA.

As in days past, locations are fairly saturated thanks to multiple days of moderate to heavy rainfall, so any training of cells will have to be monitored once again this afternoon for flash flooding concerns. This is especially the case along and E of I-65, where locations have received 6-8" or more inches of rain over the past week.

Despite the rainfall expected, daytime highs will top out once again in the 80-85F range with muggy conditions continuing.

SHORT TERM

(Thursday through Saturday) Issued at 950 AM CDT Wed May 27 2026

As alluded to above, the pattern won't change much through the remainder of the week, with daily chances for showers and storms each day. Slightly higher chances for convection exist this weekend (especially Saturday w/~80% PoPs) before a pattern shift occurs to start the new work week.

Thankfully, there's no strong signal for severe weather, but that said, a strong storm or two can't be ruled out that may produce 40mph winds and torrential rainfall during this time period. Daytime highs will be in the upper 70s/lower 80s each afternoon, with moist/soupy mornings in the middle/upper 60s to the lower 70s each day.

LONG TERM

(Friday night through Tuesday) Issued at 1036 PM CDT Tue May 26 2026

Ridging in the northern midwest will maintain a blocking pattern through the long term period. The placement of the ridge will allow several shortwaves to ride along its western periphery and drop SE into the TN Valley. At the surface, corresponding high pressure in the northern midwest will induce easterly flow along its base. This will maintain a muggy airmass as 60-70 degree dewpoints and elevated PWATS are pulled in from the Atlantic coast. All in all, the muggy airmass paired with several passing shortwaves will amount to additional days of medium to high rain chances of about 50-80% each afternoon. While thunder is likely with any showers, there are no strong signals for severe weather currently during this period. Rather, we will continue to monitor flooding potential. With high rain chances in place all week, additional rain in the long term may lead to compounding flooding concerns with any additional heavy rainfall increasing the chances of flash flooding and river flooding.

AVIATION

(18Z TAFS) Issued at 1236 PM CDT Wed May 27 2026

Showers and storms will continue to bubble up through the TAF period, with the highest chances for convection thru late this evening at both KHSV/KMSL. MVFR conditions are expected in any direct impacts from convection to the terminals, with lower cloud ceilings continuing for much of the overnight hours. Patchy fog is likely at KHSV/KMSL should any heavy rainfall impact the terminals, but given low chances for clearing overnight, widespread fog development is not expected.

HUN WATCHES/WARNINGS/ADVISORIES

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