Friday, July 19, 2019

Dangerous Weather Forecast For the Upper Midwest

Tornadoes and a derecho -- which is a long-lived, destructive windstorm -- are forecast for the Upper Midwest.

Tornado Risk
The significant threshold is the brown, 5%, area. The 15% is a high risk of tornadoes. The hatched area is where violent tornadoes are forecast to occur.

Damaging Thunderstorm Winds
On this map, the significant threshold is the yellow (15%). The peak probability is 45%, which is high risk of damaging winds of more than 60 mph. The hatched area is where thunderstorm winds gusts of more than 75mph are forecast to occur.

Recommended Actions
  • In this situation, the tornadoes and thunderstorms will move quickly. So, you will need to begin monitoring the weather and gathering children and friends/relatives who need assistance getting to shelter when a tornado or severe thunderstorm watch is issued. 
  • Power failures are likely and some could last an extended period of time. Charge your phone and computer throughout the day but take then off the charger before the storms arrive. 
  • Get some extra cash from the ATM and fill your fuel tank (especially if you have an EV).
  • Make sure your shelter area is ready for people. 
  • Remember to wear shoes into shelter. 

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