textproduct: Huntsville

KEY MESSAGES

Updated at 1041 PM CDT Sat May 2 2026

- Conditions will become favorable for the development of fog late tonight. Spotty frost may also develop in isolated cold spots across southern TN/northeast AL.

- There is a low risk for strong to severe storms on Wednesday, along with locally heavy rains.

NEAR TERM

(Today) Issued at 204 AM CDT Sun May 3 2026

High pressure will continue to expand southeastward and center more over the TN Valley today, keeping dry and cool conditions in place. Early morning temperatures reflect this, with current readings ranging from the low to upper 40s. Satellite shows clear skies with areas of fog forming across portions of central TN. Some patchy fog may develop south into the TN River Valley but confidence in this is not high enough to warrant an Advisory at this point. Clear skies will prevail today with afternoon highs in the upper 60s to lower 70s. This combined with light winds will make for a very pleasant day for early May.

SHORT TERM

(Tonight through Tuesday) Issued at 1041 PM CDT Sat May 2 2026

The southerly flow and rising heights should result in a not as chilly Sunday night, with lows ranging from the lower 40s over NE Alabama, to lower 50s NW Alabama. With mostly sunny skies, high temperatures should be near seasonable averages for this time of year in the upper 70s or around 80. With more clouds than sun, as moisture from the Gulf regions filters northward, highs on Tuesday again should rise to around 80 degrees. A storm system forming to our west, and the lower level moisture increase, from daytime heating could yield a few showers over NW Alabama and southern middle Tennessee in the late afternoon.

LONG TERM

(Tuesday night through Saturday) Issued at 1041 PM CDT Sat May 2 2026

Come mid week a zonal pattern aloft will develop. This will allow several weak shortwaves to trespass east through the TN Valley ahead of an approaching low pressure system. The rippling shortwaves will contribute to overcast conditions and low (10-30%) rain chances during Wednesday morning. At the surface, SSW flow ahead of the approaching front will surge dew points into the 60s making for a moist environment. Rain chances pick up through the afternoon as the front approaches however prolonged overcast conditions will likely limit afternoon instability. The actual low pressure system and associated front looks to pass late Wednesday into Thursday. Models are still somewhat inconsistent with the timing, leading to uncertainty regarding the potential for severe weather. The front itself will have plenty of shear, however the already meager instability will wane significant after sunset. Should the front pass in the late evening slightly higher chances for severe weather are possible. Should the front pass overnight or early Thursday morning, instability (at least at this point in time) looks to be lacking for a widespread severe risk. We will keep an eye on forecast trends as this feature draws closer.

Low (10-30%) rain chances look to linger after the frontal passage on Thursday as the far north parent low takes it time swinging the trough east through the TN Valley. At the surface, temps will cool down slightly for the remainder of the week with partly cloudy conditions lingering along the base of the parent trough.

AVIATION

(06Z TAFS) Issued at 1219 AM CDT Sun May 3 2026

VFR conditions are forecast through the TAF period with the exception of a low chance for fog formation near the KMSL terminal. Have included a TEMPO group during the early morning hours for MVFR conditions to cover this risk. Otherwise, expect light and variable winds with clear skies.

HUN WATCHES/WARNINGS/ADVISORIES

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