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Increasing Tornado Threat in the Plains & Ohio Valley

28 Feb 2017, 2:26 pm

The threat for severe thunderstorms, including tornadoes, is increasing for this afternoon and tonight across the Central Plains into the Ohio Valley. The Storm Prediction Center has outlined a large area for the potential of severe storms, with a moderate risk now for Missouri, Illinois, Indiana, and Kentucky. A Tornado Watch has been issued from Chicago to St. Louis.

Tornadoes, hail larger than one inch in diameter, and wind gusts above 58 mph are possible within the risk area tonight. The tornado threat extends through this evening into the overnight. It is recommended that if you live in the area under the severe weather threat tonight, make sure to have a NOAA Weather Radio (or another alert system) to wake you if warnings are issued for your area while you are sleep.

Storms are developing over the region now and will become severe. Growth in overall coverage is expected with individual cells this evening, expanding into a squall line of storms later tonight.

Severe weather chances will continue into the overnight ahead of a cold front. Tornadoes will still be possible overnight, along with large hail and damaging strong winds.

Surface winds out of the south are blowing under strong southwesterly winds aloft. This will help to sustain severe storms and create wind shear for tornado development.

 

Water vapor imagery is showing increasing humidity aloft. Higher dew points are spreading northward with the southerly flow from the Gulf of Mexico.

Severe thunderstorms are possible again tomorrow from the Southeast through the Tennessee Valley and into the Northeast.

Stay tuned to WeatherNation for updates on the latest watches and warnings with live updates around the clock. We will also have live coverage out in the field, following the severe storms.

For WeatherNation: Meteorologist Mace Michaels

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