textproduct: Memphis

KEY MESSAGES

Issued at 1152 AM CDT Mon Sep 7 2026

- Lower humidity, although trending higher, will accompany highs in the mid to upper 90s through Thursday. Heat Advisories will return to portions of the Mid-South tomorrow.

- A cold front will bring increased rain chances late Thursday into Friday. Behind this front, highs will moderate to the low to mid 90s through next weekend.

DISCUSSION

(This afternoon through next Sunday) Issued at 1152 AM CDT Mon Sep 7 2026

A slightly cooler, but noticeably drier air mass in the wake of yesterday's cold front will limit instability across the Midsouth. As a result, we will not see the afternoon showers and thunderstorms that were prevalent across much of the region yesterday.

The break from oppressive heat will be short-lived. A strong ridge currently over the Plains will shift over the Mississippi and Ohio River Valleys Tuesday. The Bermuda High positioned along the East Coast and relatively low pressure along the lee side of the Rockies will set up a southerly flow along the Mississippi River Valley early tomorrow. As a result, moisture levels will trend higher, resulting in higher heat indices. Temperatures will also tick up a degree or two as the ridge builds, resulting in the return of 105+ degree heat indices across portions of the Mid- South. A Heat Advisory has been issued for portions of southwest Tennessee, east-central Arkansas, and northwest Mississippi tomorrow, with an expansion of that area anticipated Wednesday. A dry air mass will limit any precipitation across the Mid-South through Wednesday.

The ridge over the Ohio and Mississippi River Valleys will weaken and flatten out Wednesday. Zonal flow will set up across the northern and central plains, across the Great Lakes and Ohio Valley. Late Wednesday into Thursday a trough associated with a deep low over Canada will swing across the Great Lakes. An attendant cold front will approach the Mid-South early Thursday. Current WPC rainfall totals for this system do not look impressive, but we can use every drop as drought conditions worsen across the Mid-South. Details regarding exact rainfall amounts and potential for any strong to severe storms will come into better focus over the next couple of days, but overall expect slightly cooler temperatures and at least a gambler's chance of rain Thursday and Friday. The weekend looks drier and warmer as a ridge builds back in from the west.

AVIATION

(18Z TAFS) Issued at 1152 AM CDT Mon Sep 7 2026

Elevated northerly winds will persist through midnight. By sunrise, winds will veer south and remain around 5 kts. VFR conditions are anticipated through the period.

ANS

FIRE WEATHER

Issued at 1152 AM CDT Mon Sep 7 2026

A drier and slightly cooler airmass is in place this afternoon, but will moderate over the next couple of days. Expect HR's 30- 35% this afternoon. Relatively dry air will remain in place through midweek but RH's should trend a bit higher, generally 35- 45% tomorrow and Wednesday. 10-hr fuels remain low, but 20-ft winds will remain well below 10 kts.

MEG WATCHES/WARNINGS/ADVISORIES

AR...Heat Advisory from 11 AM to 8 PM CDT Tuesday for ARZ036-048-049- 058.

MO...None. MS...Heat Advisory from 11 AM to 8 PM CDT Tuesday for MSZ001-002-007- 008-010>013-020-021.

TN...Heat Advisory from 11 AM to 8 PM CDT Tuesday for TNZ088-089.