Severe Thunderstorms in the Central U.S.; Upper Level Low Over California

Scattered severe thunderstorms are possible today across central and eastern Minnesota, Iowa, and western Wisconsin. A few tornadoes, isolated very large hail, and damaging winds may occur. An upper level low will help trigger scattered thunderstorms over portions of central and southern California today along with a few inches of snow in the central Sierra Nevadas. Read More >

How to report severe weather:

Via email at, sr-fwd.webmaster@noaa.gov
Facebook
Twitter @NWSFortWorth
mPING app
Calling: 1-800-792-2257

When to send a storm report?

When you can do safely, please send us a report when you observe one or more of the following:

Tornado
Hail
- 0.25" or less - Pea
- 0.50" - Mothball
- 0.75" - Dime/Penny
- 0.88" - Nickel
- 1.00" - Quarter
- 1.25" - Half Dollar
- 1.50" - Walnut/Ping Pong
- 1.75" - Golf Ball
- 2.00" - Hen Egg
- 2.50" - Tennis Ball
- 2.75" - Baseball
- 3.00" - Tea Cup
- 4.00" - Grapefruit
- 4.50" - Softball
Wind damage.
Flooding
Snowfall
Rainfall

Definitions:

Tornado: A violently rotating column of air, usually pendant to a cumulonimbus, with circulation reaching the ground. It nearly always starts as a funnel cloud and may be accompanied by a loud roaring noise. On a local scale, it is the most destructive of all atmospheric phenomena.
Severe Thunderstorm: A thunderstorm that produces a tornado, winds of at least 58 mph (50 knots), and/or hail at least 1" in diameter. Structural wind damage may imply the occurrence of a severe thunderstorm. A thunderstorm wind equal to or greater than 40 mph (35 knots) and/or hail of at least ½" is defined as approaching severe.
Flash Flood: A flood which is caused by heavy or excessive rainfall in a short period of time, generally less than 6 hours. Also, at times a dam failure can cause a flash flood, depending on the type of dam and time period during which the break occurs.

Please include in your report, the location (town and county) and time/date that the severe weather occurred.

If you can supply a picture of the severe weather you are experiencing, please do.

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National Storm Reports from the Storm Prediction Center.

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Severe Thunderstorms in the Central U.S.; Upper Level Low Over California

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