Severe Thunderstorms With Heavy Rain Possible In The Upper Midwest; Excessive Heat For Central U.S.

Several rounds of strong to severe thunderstorms will be possible from the northern Plains and upper Midwest to the Great Lakes through Friday. Damaging winds, large hail, and flooding will be the primary threats with these storms. Excessive heat will grip the central Plains with heat indices approaching 105 to 110 degrees. Very hot and humid conditions are likely to expand into the Mid Atlantic.
Read More...

Last Update: 947 AM EDT Thu Jul 20 2017

View Nearby Observations

For More Weather Information:

Tampa Bay, FL Local Forecast Office

4NM SSE Saint Pete Beach Reef FL

Marine Zone Forecast


Synopsis: High pressure is expected to hold over the waters through early next week. A very weak pressure gradient will keep winds generally less than 10 knots and seas less than 2 feet through the period. However, higher winds and seas will occur in the vicinity of thunderstorms which will be the main hazard over the next several days. The highest chances for thunderstorms will be during the late night and early morning hours each day.

This Afternoon
Southeast winds around 5 knots then becoming southwest late in the afternoon. Seas 2 feet or less. Bay and inland waters smooth. Wind and seas higher near scattered thunderstorms.
Tonight
West winds around 5 knots then becoming south in the late evening and overnight. Seas 2 feet or less. Bay and inland waters smooth. Isolated thunderstorms.
Friday
South winds around 5 knots then becoming southwest in the afternoon. Seas 2 feet or less. Bay and inland waters smooth. Scattered thunderstorms.
Friday Night
Southwest winds around 5 knots. Seas 2 feet or less. Bay and inland waters smooth. Isolated thunderstorms.
Saturday
Southwest winds around 10 knots. Seas 2 feet or less. Bay and inland waters a light chop. Isolated thunderstorms.
Saturday Night
West winds around 10 knots then becoming southwest around 5 knots after midnight. Seas 2 feet or less. Bay and inland waters a light chop. Isolated thunderstorms.
Sunday
Southwest winds around 10 knots. Seas 2 feet or less. Bay and inland waters a light chop. Scattered thunderstorms.
Sunday Night
Southwest winds around 10 knots. Seas 2 feet or less. Bay and inland waters a light chop. Isolated thunderstorms.
Monday
Southwest winds around 5 knots. Seas 2 feet or less. Bay and inland waters smooth. Isolated thunderstorms in the morning, then scattered thunderstorms in the afternoon.
  Click Map For Detailed Forecast

ABOUT THIS FORECAST

Last Update: 947 AM EDT Thu Jul 20 2017
  Forecast Discussion
   

RADAR & SATELLITE IMAGES

Link to Local Radar Data Link to Satellite Data