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: 342 AM EDT Thu Jul 18 2019

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Gray/Portland, ME Local Forecast Office

11NM S Brunswick ME

Marine Zone Forecast


Synopsis: ANZ100-182145- 342 AM EDT Thu Jul 18 2019 .Synopsis for Stonington ME to Merrimack River MA out to 25 NM... A cold front will stall over southern New England today as high pressure builds in from the north. High pressure will slide off to the east this afternoon. A warm front will lift northeast through the region Friday into Saturday morning. A cold front will approach from the north on Saturday and will slowly drop south through Sunday and Sunday night with an additional frontal passage on its heels. High pressure will gradually build in from the west Monday through Tuesday. && $$

Today
E winds around 10 kt. Seas around 2 ft. Patchy fog this morning with vsby 1 to 3 nm.
Tonight
E winds 5 to 10 kt, becoming NE after midnight. Seas 1 to 2 ft.
Fri
E winds around 5 kt, becoming S in the afternoon. Seas 1 to 2 ft.
Fri Night
SW winds 5 to 10 kt. Seas 1 to 2 ft, building to 2 to 3 ft after midnight. Areas of fog after midnight with vsby 1 to 3 nm.
Sat
SW winds 5 to 10 kt. Seas 1 to 2 ft. Areas of fog in the morning with vsby 1 to 3 nm.
Sat Night
W winds 5 to 10 kt. Seas 1 to 2 ft in the evening, then 1 foot or less.
Sun
SW winds around 5 kt. Seas 1 foot or less. A chance of showers and tstms.
Sun Night
W winds around 5 kt. Seas 1 to 2 ft.
Mon
N winds around 5 kt. Seas 1 to 2 ft.
Mon Night
W winds around 5 kt. Seas 1 foot or less. A chance of showers. winds and seas higher in and near tstms.

Winds and seas higher in and near tstms.
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ABOUT THIS FORECAST

Last Update: 342 AM EDT Thu Jul 18 2019
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