National Weather Service United States Department of Commerce

Severe Thunderstorms and Excessive Rainfall in the Eastern U.S. Tuesday; Hot Weather for Southern California

Severe thunderstorms are likely across portions of the Mid-South, Tennessee Valley, and lower Ohio River Valley Tuesday, including damaging winds and tornadoes, a few of which could be strong. Heavy to excessive rainfall, which may lead to flooding, is expected over the lower Ohio Valley Tuesday. An extended period of hot weather is forecast for parts of coastal southern California this week. Read More >

Click a location below for detailed forecast.

Last Map Update: Tue, May 20, 2025 at 5:20:27 am EDT

 

Severe thunderstorms possible Tuesday afternoon into Tuesday night. Be prepared for possible watches or warnings.
A cold front will approach the area on Tuesday evening with widespread rain and thunderstorms. Some thunderstorms may be severe with the potential for damaging winds, hail, and tornadoes.
A cold front will approach the area on Tuesday evening with widespread rain and thunderstorms. Some thunderstorms may be severe with the potential for damaging winds, hail, and tornadoes.
A cold front will approach the area on Tuesday evening with widespread rain and thunderstorms. Some thunderstorms may be severe with the potential for damaging winds, hail, and tornadoes.

 Current Weather Observations...
Location Time
(EDT)
Weather Vsby.
(SM)
Temp.
(ºF)
Dewpt.
(ºF)
Hum.
(%)
Wind
(mph)
Wind Chill / Heat Index
(ºF)
Pres.
(in)
Abingdon VA04:55Clear96060100N 1-29.95
Andrews-Murphy NC11:54Mostly Cloudy10746266SW 8-29.95
Chattanooga TN04:53Clear10726990E 5-29.80
Crossville TN04:53Mostly Clear10676593E 7-29.85
Dalton GA04:55Mostly Cloudy87272100SE 8-29.83
Knoxville TN (McGhee-Tyson)04:53Overcast10686589N 5-29.85
Middlesboro KY04:55Clear106464100CALM-29.91
Monroe Cnty TN04:35Overcast106868100CALM-29.86
Morristown TN11:4510696894NNE 6-30.19
Oak Ridge TN04:53Mostly Cloudy10686693E 3-29.87
Tazewell Cnty VA04:55Clear10565184CALM-29.97
Tri-Cities TN04:53Mist66161100CALM-29.95
Wise VA04:55Clear10605582S 5-29.98
Greeneville, TN04:35Clear10626093CALM-29.94


Local Weather History For May 20th...
Storms hit in 2008 with several reports of large hail. Baseball-size hail fell in Monroe County.

 

 

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