Dangerous Heat and Humidity Building from the Plains to the East Coast

A strengthening ridge of high pressure will produce much above average temperatures from the Plains to the East Coast, a true summer heat wave. Highs in the 90s and triple digits combined w/ humidity and dewpoints surging into the upper 70s, if not low 80s, will create heat indices as high as 110 to 115 through this weekend. Air quality will likely be poor due to haze and little air circulation.
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Hazardous Weather Conditions

Last Update: 333 PM AKDT Wed Jul 17 2019

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Anchorage, AK Local Forecast Office

115NM W Saint Matthew Island AK

Marine Zone Forecast

...SMALL CRAFT ADVISORY THROUGH THURSDAY NIGHT...

Synopsis: High pressure builds from the south across the southern Bering through Fri afternoon. A frontal boundary associated with a 1003 mb Bering Strait low moves across the northern Bering through Fri afternoon.

Tonight
SW wind 25 kt. Seas 8 ft. Patchy fog.
Thu
W wind 25 kt. Seas 9 ft. Patchy fog.
Thu Night
W wind 25 kt. Seas 8 ft. Patchy fog.
Fri
SW wind 20 kt. Seas 7 ft.
Fri Night
SW wind 25 kt. Seas 7 ft.
Sat Through Mon
W wind 20 kt. Seas 9 ft.
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ABOUT THIS FORECAST

Last Update: 333 PM AKDT Wed Jul 17 2019
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