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Very active weather pattern in N. America

Fred Campagna

Prior to Thursday, this week had already featured some extreme weather in the United States. An unusually hot and humid airmass spread east from the Plains to the Northeast. Highs were in the 90s, and the humidity made it feel like 105°+. On Thursday, a strong cold front that will bring fall-like weather to the Upper Midwest and Northeast was responsible for wild weather from the Great Lakes to New England. Dual waterspouts were spotted on Lake Michigan. Flash flooding occurred in Keene, NH after a half-foot of rain. A thunderstorm from the same cold front delivered a lightning strike that knocked out the control tower temporarily at BWI Airport in Baltimore, MD.

At the same time, a slow-moving area of low pressure was leading to upslope conditions in the Front Range of the Rockies. Epic flash flooding was occurring in the Denver/Boulder area of Colorado.

The tropics have also come to life. The first hurricane of the season, Humberto, is way out in the eastern Atlantic Ocean. There are two other tropical cyclones that are closer to North America. Tropical Storm Gabrielle is moving north toward Nova Scotia where it will bring windy and wet weather. The bigger weather story will probably come from Tropical Depression Ten which may become Tropical Storm Ingrid as it meanders around in the Bay of Campeche off the eastern Mexico coast. The storm has the potential to bring one to two FEET of rain to an area that is prone to flash flooding and mudslides.

Plenty of weather action on this map

Check out some of the social media updates on the wild weather…
Waterspouts


Colorado

Keene, NH

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