Strong winds and heavy rain likely Thursday

Published: Sep. 16, 2020 at 3:10 PM AKDT
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ANCHORAGE, Alaska (KTUU) - A storm system will deliver high winds and heavy rain to Southcentral starting Wednesday night.

The biggest impact from this storm in Anchorage will be the wind, which will pick up late Wednesday night and stay strong through Thursday with the strongest wind gusts likely Thursday morning. Anchorage’s upper hillside along with Turnagain Arm should expect East to Southeast wind gusts near 70 mph. The lower hillside, along with the east and south sides of town, should expect gusts near 45 mph and the rest of Anchorage will see wind gusts near 30 mph.

The Matanuska Valley is also expected to see winds picking up late Wednesday with gusts of 25 to 40 mph expected on Thursday. The strongest winds will be found along the Knik River Valley near Palmer.

Strong winds are expected in Anchorage late Wednesday through Thursday.
Strong winds are expected in Anchorage late Wednesday through Thursday.(Melissa Frey | KTUU/KYES)

The National Weather Service cautions that loose objects should be secured Wednesday and that the winds have the potential to bring down tree branches.

This is the third strong wind event of the fall season.

Susitna Valley and Coastal rain

This same storm system will bring in heavy rain to the eastern side of the Kenai Peninsula, Prince William Sound and parts of the Susitna Valley.

The heaviest rain will move through Seward starting Wednesday night and will continue through Thursday midday. A total of 2 to 3 inches of rain is likely Thursday night. This is expected to cause the Resurrection River and other area rivers and streams to rise.

Expected rainfall totals across Southcentral through Thursday night.
Expected rainfall totals across Southcentral through Thursday night.(Melissa Frey | KTUU/KYES)

The western Susitna Valley is also expected to get 1 to 2 inches of rain between Wednesday night and Thursday afternoon, with the heaviest rain near the headwaters of the Yentna and Skwentna Rivers. The National Weather Service says this will cause the waters to rise, starting Thursday night and leading into Friday because these rivers respond slowly to rainfall.

No flood alerts have been issued as of Wednesday afternoon.

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