Severe Thunderstorms, Heavy Rainfall and Dangerous Heat

Severe thunderstorms are expected today and Friday from the upper Midwest, central Great Lakes into the Ohio and mid-Mississippi Valley's. In addition, heavy rainfall threat increases on Friday across the Ohio Valley. Meanwhile, early summer-like heat wave across portions of southern Texas with new daily records are forecast today and through the weekend; The heat spreads across the Gulf States. Read More >

Click a location below for detailed forecast.

Last Map Update: Fri, May 16, 2025 at 1:10:35 am EDT

Watches, Warnings & Advisories

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National Weather Service Peachtree City, GA

National Weather Service Greenville-Spartanburg, SC

Hazardous Weather Outlook

Friday Daytime

Friday Nighttime

Friday Timing

Nighttime Safety

Tonight: A few showers with a thunderstorm are possible, mainly north of Interstate 40. Severe risk is very low. Friday during the daytime carries an uncertain risk for severe weather, if storms do form, hail and damaging winds are the most likely threats.

Severe thunderstorms are likely Friday night, with all-hazards possible though the highest threat is for damaging straight line winds, some significant gusts bringing severe damage are possible.

Timing estimates for the line of severe storms Friday night. Most likely timeframe will be entering northeast TN and southwest VA around 11 PM - 2 AM, and exiting the southwest Virginia and southwest North Carolina around 3 - 4 AM. See graphic for details.

With severe storms expected Friday night, now is the time to prepare for severe weather. Severe storms are more dangerous at night, with Tennessee leading the nation in casualties in nighttime storms! Have multiple ways of receiving warnings, including turning off any do not disturb settings. Should you go to sleep before the storms' arrival, have ways of being awoken with shelter nearby!

Current Weather Observations...

Location	Time (EDT)	Weather	Vsby. (SM)	Temp. (ºF)	Dewpt. (ºF)	Hum. (%)	Wind (mph)	Wind Chill / Heat Index (ºF)	Pres. (in)
Abingdon VA	00:55	Mostly Cloudy	10	69	64	82	SW 6	-	29.94
Andrews-Murphy NC	11:54	Mostly Cloudy	10	74	62	66	SW 8	-	29.95
Chattanooga TN	00:53	Clear	10	78	66	66	SSE 3	-	29.90
Crossville TN	00:53	Clear	10	70	64	81	VRB 5	-	29.94
Dalton GA	00:55	Mostly Clear	10	72	71	94	CALM	-	29.91
Knoxville TN (McGhee-Tyson)	00:53	Overcast	10	73	65	75	SW 9	-	29.89
Middlesboro KY	00:55	Clear	10	74	66	77	S 8G17	-	29.88
Monroe Cnty TN	00:35	Clear	10	71	69	94	SW 3	-	29.91
Morristown TN	11:45		10	69	68	94	NNE 6	-	30.19
Oak Ridge TN	00:53	Clear	8	70	69	96	CALM	-	29.90
Tazewell Cnty VA	00:55	Mostly Cloudy	10	67	62	83	SSW 6	-	29.95
Tri-Cities TN	00:53	Clear	10	72	65	78	CALM	-	29.92
Wise VA	00:55	Partly Cloudy	10	68	62	82	SW 9	-	29.92
Greeneville, TN	00:30	Clear	10	71	64	78	VRB 3	-	29.93

Local Weather History For May 15th...

2 tornadoes formed in Knox County in 2003. 2 injured. Downburst hit Morgan County injuring 4.


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