Heavy Rainfall Continues in Hawaii; Severe Thunderstorms and Heavy Rainfall in the Plains and Southern Appalachians

Areas of gusty winds, heavy rain leading to flash flooding, and high surf continue across portions of Hawaii as Tropical Storm Lala continues to move away from the islands. Severe thunderstorms and heavy rainfall will shift into the southern Appalachians today. Strong to severe thunderstorms may produce large hail, scattered wind gusts, and heavy rain today across the northern and central Plains. Read More >

Hazardous Weather Conditions

Severe Thunderstorm Watch in effect from August 17, 02:35 PM EDT until August 17, 10:00 PM EDT

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Partly Cloudy

96°F

36°C

Humidity	46%
Wind Speed	SW 12 G 25 mph
Barometer	29.92 in (1011.7 mb)
Dewpoint	72°F (22°C)
Visibility	10.00 mi
Heat Index	105°F (41°C)
Last update	17 Aug 3:53 pm EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

4 Miles NNW High Rocks NC

Severe T-storm Watch until August 17, 10:00pm

Click here for hazard details and duration

Severe T-storm Watch

Severe T-storm Watch until August 17, 10:00pm
NOW until 10:00pm Mon
Severe T-storm Watch
This Afternoon
High: 86 °F
Chance
T-storms
Tonight
Low: 64 °F
T-storms
Likely then
Slight Chance
Showers and
Patchy Fog
Tuesday
High: 78 °F
Patchy Fog
then Mostly
Sunny
Tuesday Night
Low: 60 °F
Partly Cloudy
Wednesday
High: 84 °F
Sunny
Wednesday Night
Low: 64 °F
Mostly Clear
Thursday
High: 82 °F
Mostly Sunny
then Chance
T-storms
Thursday Night
Low: 63 °F
Chance
T-storms then
Mostly Cloudy

Detailed Forecast

This Afternoon

A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. West wind around 8 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and thunderstorms likely before midnight, then a slight chance of showers between midnight and 1am. Patchy fog between midnight and 1am. Otherwise, mostly cloudy, with a low around 64. West wind 3 to 6 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tuesday

Patchy fog between 7am and 9am. Otherwise, partly sunny, with a high near 78. North northwest wind 5 to 7 mph.

Tuesday Night

Partly cloudy, with a low around 60. North wind around 6 mph becoming east northeast after midnight.

Wednesday

Sunny, with a high near 84. East wind around 5 mph becoming calm.

Wednesday Night

Mostly clear, with a low around 64.

Thursday

A 30 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 82.

Thursday Night

A 30 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 63.

Friday

A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 79. Chance of precipitation is 70%.

Friday Night

Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 61. Chance of precipitation is 60%.

Saturday

A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 77.

Saturday Night

A chance of thunderstorms. Partly cloudy, with a low around 60. Chance of precipitation is 30%.

Sunday

Mostly sunny, with a high near 76.

Sunday Night

Mostly clear, with a low around 58.

Monday

Mostly sunny, with a high near 76.