Severe Weather Possible from the Central Plains to the Northeast; Building Heat in the West; Fire Weather Concerns for the Southwest

Severe thunderstorms are possible from the Ohio Valley to the central Plains this evening, and the threat will expand into the Mid-Atlantic and Northeast on Monday. Hazardous heat will linger across the southern U.S. and build across the West through mid-week. Hot and dry conditions will fuel fire weather concerns for Alaska through this evening and for the Four Corners region through Monday. Read More >

Hazardous Weather Conditions

Heat Advisory in effect from June 21, 01:00 PM CDT until June 21, 08:00 PM CDT

Current conditions at

Alva, Alva Regional Airport (KAVK)

Lat: 36.77°NLon: 98.67°WElev: 1473ft.

Fair

91°F

33°C

Humidity	56%
Wind Speed	E 17 mph
Barometer	29.67 in
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Heat Index	100°F (38°C)
Last update	21 Jun 5:55 pm CDT

More Information:

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

Extended Forecast for

8 Miles ESE Byron OK

Heat Advisory until June 21, 08:00pm

Click here for hazard details and duration

...

Heat Advisory until June 21, 08:00pm
NOW until 8:00pm Sun
Heat Advisory
Tonight
Low: 67 °F
Severe
Thunderstorms
Monday
High: 84 °F
Severe
Thunderstorms
Monday Night
Low: 65 °F
Severe
Thunderstorms
Tuesday
High: 85 °F
Severe
Thunderstorms
Tuesday Night
Low: 69 °F
Chance
T-storms then
Showers
Wednesday
High: 84 °F
Showers
Likely
Wednesday Night
Low: 67 °F
Showers
Likely
Thursday
High: 86 °F
Chance
Showers

Detailed Forecast

Tonight

Showers and thunderstorms likely, mainly before 10pm. Some of the storms could be severe. Increasing clouds, with a low around 67. East northeast wind 8 to 10 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Monday

A slight chance of showers and thunderstorms before 10am, then a slight chance of showers and thunderstorms after 1pm. Some of the storms could be severe. Cloudy through mid morning, then gradual clearing, with a high near 84. Northeast wind around 11 mph. Chance of precipitation is 20%.

Monday Night

A 40 percent chance of showers and thunderstorms. Some of the storms could be severe. Partly cloudy, with a low around 65. East wind 7 to 10 mph.

Tuesday

A 30 percent chance of showers and thunderstorms. Some of the storms could be severe. Partly sunny, with a high near 85. Southeast wind around 8 mph.

Tuesday Night

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 69. East southeast wind 6 to 8 mph. Chance of precipitation is 80%.

Wednesday

Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 84. Chance of precipitation is 70%.

Wednesday Night

Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 67. Chance of precipitation is 60%.

Thursday

A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 86.

Thursday Night

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.

Friday

A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 92.

Friday Night

A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.

Saturday

Mostly sunny and hot, with a high near 98.

Saturday Night

Mostly clear, with a low around 79.

Sunday

Sunny and hot, with a high near 101.