Heavy rain expected across Southcentral Alaska

More than half a foot of rain is possible for parts of Prince William Sound
Published: Sep. 8, 2022 at 7:28 AM AKDT
Email This Link
Share on Pinterest
Share on LinkedIn

ANCHORAGE, Alaska (KTUU) - Widespread rain continues to build into Southcentral Alaska, as an atmospheric river is taking aim at the region.

While the rain has been light for most of the morning, heavier rain has been falling through Prince William Sound. It’s here where nearly an inch of rain has already fallen as of 6 a.m., with significantly more expected through the day.

Flood watches remain in effect for the entire Matanuska-Susitna region and Copper River Basin through Saturday, as minor and urban flooding is possible. Excessive runoff and widespread rain will lead to rising waterways, with low-lying areas and flood-prone areas seeing the best chance of flooding waters.

Rain will stick around through most of the day, with periodic heavy rain passing through the region. On average, inland areas will see 1 to 3 inches of rain through Saturday morning, with upwards of 8 inches of rain for eastern portions of Prince William Sound. The lightest rainfall totals will occur for the Anchorage Bowl and western portions of the Kenai Peninsula — a big contributing factor to that will be the rain shadow and downsloping winds keeping the heaviest rain at bay.

While winds will still increase at times through the day, most of the strong winds will remain for the higher elevations and through the gaps and passes of the Chugach Mountains. While winds won’t affect much of Anchorage, we’ll see some breezy conditions through the early afternoon and overnight into Friday. Maximum wind gusts in the Anchorage Bowl will likely remain around 45 mph over the next 24 to 36 hours.