Moke Impacts Hawaii; Severe Thunderstorms and Heavy Rainfall from the Great Basin to the Plains

Heavy rain from Tropical Storm Moke will begin to impact the Big Island today, risking life-threatening flooding and mudslides in windward and southeast areas. Severe thunderstorms are expected across the northern Rockies/Plains and northern Great Basin. Repeated storms and heavy rainfall may cause flash flooding from the Plains into the Lower MS Valley. Dangerous heat persists across the South. Read More >

Hazardous Weather Conditions

Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

Fair

104°F

40°C

Humidity	25%
Wind Speed	W 8 G 18 mph
Barometer	29.94 in (1012.6 mb)
Dewpoint	62°F (17°C)
Visibility	10.00 mi
Heat Index	106°F (41°C)
Last update	23 Aug 2:53 pm CDT

More Information:

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

Extended Forecast for

2 Miles SSW Allen TX

Extreme Heat Warning until August 24, 09:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning until August 24, 09:00pm
NOW until 9:00pm Mon
Extreme Heat Warning
This Afternoon
High: 107 °F
Hot
Tonight
Low: 84 °F
Mostly Clear
Monday
High: 108 °F
Hot
Monday Night
Low: 84 °F
Mostly Clear
then Slight
Chance
T-storms
Tuesday
High: 106 °F
Slight Chance
T-storms then
Sunny
Tuesday Night
Low: 82 °F
Mostly Clear
Wednesday
High: 103 °F
Hot
Wednesday Night
Low: 80 °F
Partly Cloudy

Detailed Forecast

This Afternoon

Mostly sunny and hot, with a high near 107. Heat index values as high as 111. Southwest wind around 10 mph.

Tonight

Mostly clear, with a low around 84. Southeast wind around 10 mph.

Monday

Mostly sunny and hot, with a high near 108. Southwest wind around 10 mph, with gusts as high as 20 mph.

Monday Night

A 10 percent chance of showers and thunderstorms after 4am. Mostly clear, with a low around 84. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

Tuesday

A 10 percent chance of showers and thunderstorms before 7am. Sunny and hot, with a high near 106. Southwest wind around 10 mph, with gusts as high as 20 mph.

Tuesday Night

Mostly clear, with a low around 82. South wind around 10 mph.

Wednesday

Mostly sunny and hot, with a high near 103. Southwest wind 5 to 10 mph.

Wednesday Night

Partly cloudy, with a low around 80. Northwest wind around 5 mph becoming east northeast after midnight.

Thursday

A 20 percent chance of showers before 1pm. Mostly sunny and hot, with a high near 102. Southeast wind 5 to 10 mph becoming north northeast in the afternoon.

Thursday Night

Partly cloudy, with a low around 79.

Friday

Sunny and hot, with a high near 101.

Friday Night

Mostly clear, with a low around 79.

Saturday

Sunny and hot, with a high near 101.