Lala Approaching Hawaii; Flash Flooding Risks; Excessive Heat

Lala, may become a hurricane, is expected to impact Hawaii this weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians continues, with the threat shifting toward the mid-Atlantic later this weekend. Record heat continues for areas of the South. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville (KOXV)

Lat: 41.3°NLon: 93.12°WElev: 928ft.

Overcast

75°F

24°C

Humidity	94%
Wind Speed	SE 9 mph
Barometer	30.01 in
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Last update	15 Aug 3:35 am CDT

More Information:

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

Extended Forecast for

3 Miles ENE Swan IA

Flood Watch August 15, 03:48am until August 15, 10:00am

Click here for hazard details and duration

Flood Watch

Flood Watch August 15, 03:48am until August 15, 10:00am
NOW until 10:00am Sat
Flood Watch
Overnight
Low: 72 °F
Heavy Rain
and Patchy
Fog
Saturday
High: 85 °F
Chance
T-storms and
Patchy Fog
Saturday Night
Low: 71 °F
Chance
T-storms
Sunday
High: 83 °F
Slight Chance
T-storms then
Partly Sunny
Sunday Night
Low: 63 °F
Partly Cloudy
Monday
High: 83 °F
Sunny
Monday Night
Low: 65 °F
Partly Cloudy
Tuesday
High: 85 °F
Slight Chance
T-storms then
Chance
Showers

Detailed Forecast

Overnight

A chance of showers and thunderstorms before 4am, then showers likely and possibly a thunderstorm between 4am and 5am, then a chance of showers and thunderstorms after 5am. Some of the storms could produce heavy rainfall. Patchy fog. Otherwise, cloudy, with a low around 72. East southeast wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Saturday

A chance of showers and thunderstorms before 11am, then a slight chance of showers and thunderstorms after 5pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 85. Light and variable wind becoming west around 6 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday Night

A 50 percent chance of showers and thunderstorms, mainly before 3am. Partly cloudy during the early evening, then becoming cloudy, with a low around 71. Light west northwest wind. New rainfall amounts between a quarter and half of an inch possible.

Sunday

A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 9am. Partly sunny, with a high near 83. North northwest wind 6 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.

Sunday Night

Partly cloudy, with a low around 63. North northwest wind 5 to 9 mph becoming light north in the evening.

Monday

Sunny, with a high near 83.

Monday Night

Partly cloudy, with a low around 65.

Tuesday

A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 85.

Tuesday Night

Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 67. Chance of precipitation is 80%.

Wednesday

Partly sunny, with a high near 79.