National Weather Service United States Department of Commerce

Life-Threatening Flash Flooding in South Central Texas; Heat Continues from the Northern Plains to the Mid-Atlantic

Life-threatening and locally catastrophic flash and urban flooding is expected across portions of south-central Texas through early Friday, with significant river flooding and rapid rises on small streams, arroyos, and typically dry washes expected. A significant heat wave continues for the Rockies, Northern Plains, and Great Lakes into the Mid-Atlantic, peaking in intensity through midweek. Read More >

Click a location below for detailed forecast.

Last Map Update: Wed, Jul 15, 2026 at 7:32:46 pm EDT

 

Isolated to scattered showers and thunderstorms will be possible each day, mainly in the afternoon and early evening hours. Temperatures will be near typical July values, with highs in the mid to upper 80s and lows near 70. A non-zero risk for flooding exists should heavy rainfall fall on top of vulnerable saturated locations.
A gradual warmup starts today. Isolated to scattered showers and storms are expected in the afternoon and evening hours today and tomorrow mainly south of I-40. Friday through this weekend will bring more widespread showers and storms to the region.
A gradual warmup starts today. Isolated to scattered showers and storms are expected in the afternoon and evening hours today and tomorrow mainly south of I-40. Friday through this weekend will bring more widespread showers and storms to the region.
A gradual warmup starts today. Isolated to scattered showers and storms are expected in the afternoon and evening hours today and tomorrow mainly south of I-40. Friday through this weekend will bring more widespread showers and storms to the region.

 Current Weather Observations...
Location Time
(EDT)
Weather Vsby.
(SM)
Temp.
(ºF)
Dewpt.
(ºF)
Hum.
(%)
Wind
(mph)
Wind Chill / Heat Index
(ºF)
Pres.
(in)
Abingdon VA18:55Clear10846654WNW 5-30.12
Andrews-Murphy NC18:55Clear10847062WSW 5-30.09
Chattanooga TN18:53Towering Cumulus Clouds Observed10897257CALM96 [HI]30.03
Crossville TN18:53Clear10827066CALM-30.11
Dalton GA19:15Clear10857778ENE 596 [HI]30.04
Knoxville TN (McGhee-Tyson)18:53Mostly Clear10896849VRB 593 [HI]30.03
Middlesboro KY18:55Partly Cloudy10897055N 594 [HI]30.07
Monroe Cnty TN18:55Clear10867879W 798 [HI]30.04
Morristown TN18:55Clear9866958NNE 7-30.06
Oak Ridge TN18:53Clear10906950CALM95 [HI]30.06
Tazewell Cnty VA00:15Light Rain With Thunder \ Lightning Observed10706890S 5-30.13
Tri-Cities TN18:53Partly Cloudy10886546CALM-30.08
Wise VA19:15Clear10806254NNE 3-30.17
Greeneville, TN18:5510866245NNE 5-30.08


Local Weather History For July 15th...
In 1997, thunderstorms hit Knox County producing $36,000 wind damage. Many power lines down.

 

 

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