Excessive Heat in Southern California; Tropical Storm Ian Expected to Rapidly Intensify

Excessive heat is possible through Wednesday over southern California. Strong thunderstorms may pose some risk for severe weather across parts of the upper Ohio Valley into the northern Mid Atlantic coast. Tropical Storm Ian is forecast to approach the Florida peninsula at major hurricane strength by midweek, and poses a risk of dangerous storm surge, hurricane-force winds, and heavy rainfall.
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Last Update: 702 AM EDT Sun Sep 25 2022

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Gray/Portland, ME Local Forecast Office

25NM ENE Portsmouth NH

Marine Zone Forecast

Synopsis: ANZ100-260115- 702 AM EDT Sun Sep 25 2022 .Synopsis for Stonington ME to Merrimack River MA out to 25 NM. Southerly flow sets in today with high pressure moving in overhead before a weak low pressure system passes through north of the waters Monday through Wednesday. Winds will remain from the southwest through Wednesday before turning northwest Thursday. $$

Today

SW winds 5 to 10 kt with gusts up to 20 kt, becoming S 10 to 15 kt with gusts up to 20 kt late. Seas 3 to 4 ft. A slight chance of showers and tstms late with vsby 1 to 3 nm.

Tonight

S winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft. A chance of tstms in the evening. Showers likely. Vsby 1 to 3 nm.

Mon

SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft. A chance of showers in the morning with vsby 1 to 3 nm.

Mon Night

SW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 3 to 4 ft.

Tue

SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft.

Tue Night

SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft.

Wed

W winds 10 to 15 kt. Seas 2 to 3 ft.