Areas of Severe Thunderstorms and Excessive Rainfall; Heat Wave Builds in the Intermountain West and Plains

A slow moving front will bring rounds of strong to severe thunderstorms and heavy rainfall to the central Plains eastward to the east-central U.S.. The first widespread significant heat wave of summer for the Intermountain West and Plains is expected to develop today and expand through next week. Dangerous heat will continue to impact portions of the Southwest and Southeast. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Overcast

79°F

26°C

Humidity	72%
Wind Speed	SW 14 mph
Barometer	30.07 in (1016.8 mb)
Dewpoint	69°F (21°C)
Visibility	10.00 mi
Heat Index	82°F (28°C)
Last update	10 Jul 9:53 am EDT

More Information:

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

Extended Forecast for

4 Miles ESE Karns TN

Flood Watch July 10, 12:00pm until July 12, 08:00pm

Click here for hazard details and duration

Flood Watch

Today
High: 85 °F
Showers
Likely then
T-storms
Tonight
Low: 70 °F
Showers
Saturday
High: 84 °F
Showers
Likely then
T-storms
Saturday Night
Low: 70 °F
Showers
Likely
Sunday
High: 86 °F
Chance
Showers then
T-storms
Likely
Sunday Night
Low: 70 °F
Showers
Likely
Monday
High: 84 °F
Showers
Likely then
T-storms
Likely
Monday Night
Low: 68 °F
T-storms
Likely then
Slight Chance
T-storms
Tuesday
High: 87 °F
Partly Sunny
then Slight
Chance
T-storms

Detailed Forecast

Today

Showers and thunderstorms before 2pm, then showers and possibly a thunderstorm between 2pm and 4pm, then showers and thunderstorms likely after 4pm. High near 85. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Tonight

Showers and thunderstorms likely, then showers and possibly a thunderstorm after 9pm. Low around 70. Southwest wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Saturday

Showers and thunderstorms likely before 2pm, then showers and possibly a thunderstorm between 2pm and 3pm, then showers and thunderstorms likely after 3pm. High near 84. Southwest wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Saturday Night

A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Increasing clouds, with a low around 70. Calm wind. Chance of precipitation is 60%.

Sunday

Showers and thunderstorms likely, mainly between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 86. Calm wind. Chance of precipitation is 60%.

Sunday Night

Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 70. East wind around 5 mph becoming calm. Chance of precipitation is 60%.

Monday

Showers likely before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then showers and thunderstorms likely after 2pm. Mostly cloudy, with a high near 84. Calm wind. Chance of precipitation is 60%.

Monday Night

Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.

Tuesday

A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87.

Tuesday Night

A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 69.

Wednesday

Mostly sunny, with a high near 89.

Wednesday Night

Partly cloudy, with a low around 71.

Thursday

A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 91.