Lala Impacting Hawaii; Flash Flooding Risks; Excessive Heat

Lala will continue to impact Hawaii through the weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Thunderstorms, heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians and the mid-Atlantic through today. Record heat continues for areas of the Mississippi Valley into the Southeast. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

A Few Clouds

90°F

32°C

Humidity	54%
Wind Speed	Vrbl 7 mph
Barometer	30.14 in (1019.2 mb)
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Heat Index	96°F (36°C)
Last update	16 Aug 12:53 pm EDT

More Information:

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

Extended Forecast for

4 Miles WNW Seymour TN

Heat Advisory August 16, 01:51pm until August 17, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory August 16, 01:51pm until August 17, 08:00pm
NOW until 8:00pm Mon
Heat Advisory
This Afternoon
High: 93 °F
Hot
Tonight
Low: 75 °F
Mostly Clear
Monday
High: 93 °F
Sunny then
Showers
Likely
Monday Night
Low: 73 °F
Showers
Likely
Tuesday
High: 90 °F
Hot
Tuesday Night
Low: 69 °F
Mostly Clear
Wednesday
High: 92 °F
Hot
Wednesday Night
Low: 72 °F
Partly Cloudy
then Slight
Chance
Showers

Detailed Forecast

This Afternoon

Sunny and hot, with a high near 93. Heat index values as high as 103. West wind around 5 mph.

Tonight

Mostly clear, with a low around 75. Southwest wind around 5 mph.

Monday

A chance of showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Sunny and hot, with a high near 93. Heat index values as high as 105. Southwest wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Monday Night

Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms between 7pm and 2am. Cloudy, then gradually becoming partly cloudy, with a low around 73. Southwest wind around 5 mph becoming calm. Chance of precipitation is 60%.

Tuesday

Mostly sunny and hot, with a high near 90. Calm wind becoming northwest around 5 mph.

Tuesday Night

Mostly clear, with a low around 69. Calm wind.

Wednesday

Sunny and hot, with a high near 92. Calm wind becoming west around 5 mph in the afternoon.

Wednesday Night

A 20 percent chance of showers after 2am. Partly cloudy, with a low around 72.

Thursday

A 40 percent chance of showers and thunderstorms, mainly after 8am. Mostly sunny and hot, with a high near 90.

Thursday Night

A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.