textproduct: NWS Birmingham

KEY MESSAGES

Issued at 1253 AM CDT FRI JUN 26 2026

- Heat & Humidity: A significant warming trend begins late this week. Heat indices are expected to approach or exceed 100 degrees daily from Friday through the middle of next week. This will pose a moderate to major heat risk over the majority of the region.

DISCUSSION

(Today through Thursday) Issued at 1205 AM CDT FRI JUN 26 2026

Through the short term, low chances for convection will be present due to a deteriorating surface boundary meandering across portions of Alabama. This boundary will interact and enhance conditions with an upper shortwave moving through the base of an Eastern Conus trough. After Friday, the upper trough will push eastward. At the same time over this weekend, a large upper ridge will develop across the midsection of the US including Texas, the Plains, Mississippi Valley, and into the Deep South. In the lower levels, the deteriorating surface boundary will dissipate. Any fronts are expected to remain well to the north of the Deep South, and surface ridging is expected to develop across much of Eastern Conus through the extended. It is important to note that an upper ridge does not always mean zero rain chances. That depends on the strength of the ridge. In this case, some weak disturbances will be possible around the ridge. With hot afternoon summer temperatures, rain chances will be isolated and diurnally induced, but not necessarily zero. Temperatures will creep upward as we head toward the end of June into early July with overall heat stress becoming a concern as we head into this weekend and into the middle of next week. Current trends are leaning to a heat advisory becoming necessary by Monday of next week.

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AVIATION

(06Z TAFS) Issued at 1253 AM CDT FRI JUN 26 2026

Patchy low clouds and/or fog will occur through early this morning, and are already apparent on the nighttime micro satellite channel. Based on the latest guidance, affected terminals include AUO, MGM, and TCL, to varying extent and potentially as low as IFR. Through the rest of today, VFR/fair weather is forecast to prevail, though isolated showers and thunderstorms may occur.

Note: AMD NOT SKED will continue for the AUO TAF until data issues with observations are resolved.

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FIRE WEATHER

Isolated to scattered rain chances will persist for some through Saturday, but conditions generally become less favorable for wetting rains through the weekend. Heat and humidity will be the main story over the weekend and into the middle of next week as heat indices approach and top 100 degrees. Fire weather impacts are not anticipated as the humid air mass builds in.

PRELIMINARY POINT TEMPS/POPS

Gadsden 90 73 91 73 / 10 20 20 10 Anniston 89 74 90 74 / 10 20 20 0 Birmingham 91 75 91 75 / 20 20 10 0 Tuscaloosa 92 75 92 75 / 20 20 0 0 Calera 93 74 94 74 / 20 20 10 0 Auburn 88 73 90 74 / 20 20 10 0 Montgomery 91 74 92 74 / 20 20 10 0 Troy 90 72 92 73 / 30 20 10 0

BMX WATCHES/WARNINGS/ADVISORIES

None.