Severe Thunderstorms in the Southern Plains; Heavy to Excessive Rainfall in South Central Texas

Widespread rain may produce flash flooding across the Southern Plains into the Ozarks today. Numerous instances of flash flooding are expected in south-central Texas, including the Hill Country. There will also be a risk of isolated severe thunderstorms across the southern Plains today, where an instance or two of severe wind, hail, or a brief tornado may occur. Read More >

Hazardous Weather Conditions

Flood Watch until November 21, 06:00 AM CST

Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

Thunderstorm in Vicinity

67°F

19°C

Humidity	93%
Wind Speed	SE 5 mph
Barometer	30.03 in (1016.9 mb)
Dewpoint	65°F (18°C)
Visibility	10.00 mi
Last update	20 Nov 10:53 am CST

More Information:

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

Extended Forecast for

2 Miles ESE Allen TX

Flood Watch November 20, 11:41am until November 21, 06:00am

Click here for hazard details and duration

Flood Watch

Flood Watch November 20, 11:41am until November 21, 06:00am
NOW until 6:00am Fri
Flood Watch
Today
High: 74 °F
T-storms
Tonight
Low: 62 °F
Showers then
Chance
Showers
Friday
High: 75 °F
Slight Chance
Showers then
Sunny
Friday Night
Low: 51 °F
Mostly Clear
Saturday
High: 69 °F
Mostly Sunny
Saturday Night
Low: 50 °F
Partly Cloudy
Sunday
High: 70 °F
Slight Chance
Showers then
Chance
T-storms
Sunday Night
Low: 58 °F
T-storms
Likely then
Showers

Detailed Forecast

Today

Showers and possibly a thunderstorm. High near 74. South wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

Tonight

Showers and possibly a thunderstorm before 9pm, then a chance of showers and thunderstorms between 9pm and midnight, then a chance of showers after midnight. Low around 62. West southwest wind 5 to 10 mph becoming southeast in the evening. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

Friday

A 20 percent chance of showers before 9am. Mostly cloudy through mid morning, then gradual clearing, with a high near 75. West southwest wind 5 to 10 mph.

Friday Night

Mostly clear, with a low around 51. West southwest wind around 5 mph becoming north northwest after midnight.

Saturday

Mostly sunny, with a high near 69. North wind 5 to 10 mph.

Saturday Night

Partly cloudy, with a low around 50. North wind around 5 mph becoming calm.

Sunday

A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 70. East northeast wind 5 to 10 mph becoming southeast in the afternoon. Chance of precipitation is 40%.

Sunday Night

Showers and thunderstorms likely, then showers and possibly a thunderstorm after midnight. Low around 58. South southeast wind around 10 mph. Chance of precipitation is 80%.

Monday

Showers likely, mainly before noon. Partly sunny, with a high near 71. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.

Monday Night

Mostly clear, with a low around 51.

Tuesday

Sunny, with a high near 70.

Tuesday Night

Mostly clear, with a low around 45.

Wednesday

Sunny, with a high near 59.