High surf advisories along Western Alaska, as remnants of Typhoon Ampil move north (2024)

High surf advisories go into effect as early as Wednesday morning

By Aaron Morrison

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2024 NWS Autumn of Service

SOUTHCENTRAL: Pleasant weather is expected across Southcentral today, with more sunshine and seasonal warmth. We’ll see afternoon highs top out in the 60s, with any winds primarily impacting the gaps and passes across Southcentral. Soak up the sunny weather, as the return to clouds, showers and winds will quickly arrive through the day Wednesday.

Starting tonight clouds will begin to increase across Southcentral, with rain showers arriving by midday or early afternoon Wednesday. While rain won’t be overly impressive, we’ll still see the potential for up to a quarter of an inch of rain, with higher amounts near Prince William Sound and southern parts of the Kenai. While winds don’t look to be high, we’ll still see winds gusting anywhere from 20 to 40 mph across Southcentral, with higher wind gusts along the hillside. Winds will not be as strong as seen with the previous two storms that impacted Southcentral.

SOUTHEAST: Only spotty to isolated showers are expected today, with the bulk of the showers shifting into the Southern Inner Channels. Temperatures will warm into the 60s today. As showers shift south, we’ll see a gradual return to sunshine through the Northern Inner Channels later today. This trend will build into the rest of Southeast through Wednesday, with tomorrow shaping up to be a beautiful and sunny day across the panhandle. By Thursday morning, clouds, rain and breezy winds look to build back into the Panhandle.

INTERIOR: Cooler, cloudier and showery weather looks to remain the norm through the rest of this week for the Interior. While rain doesn’t look overly impressive, each day will bring the potential for some rain showers. Gone are the days where highs will top out in the 70s, instead the rest of this week will see highs in the low to mid 50s. Wednesday through early Friday looks to bring the best shot of rain showers to the Interior, with some breezy winds expected near the Alaska Range.

SLOPE/WESTERN ALASKA: Some light snow has been falling near Utqiagvik this morning, although much drier conditions can be expected today for the Slope. Our focus for much of Western Alaska and parts of the Slope is shifting to the remnants of Typhoon Ampil. The extratropical storm is just north of the Aleutians, approaching Russia. It will continue this track for a few more hours, before eventually shifting to the northeast. As it does, we’ll eventually see the low itself build into the Chukchi Sea.

Much of the coastline from the Kuskokwim Delta, north to the Chukchi Sea remains under a high surf advisory. The surf and impacts won’t be as great for the Kuskokwim Delta as with previous storms. We’ll likely see areas of Southwest Alaska with surf of 1 to 5 feet above high tide, while areas from the Seward Peninsula north into the Chukchi Sea, see 4 to 7 feet above high tide. Winds will be quite gusty overnight through Thursday, where gusts up to 60 mph look possible.

We’ll begin to see rough seas, winds and rain building into Western and Southwest Alaska later this afternoon into the evening hours. Locations under alerts will see them go into effect as early as tomorrow morning through Thursday afternoon.

ALEUTIANS: Breezy weather can be expected for much of the Aleutians today, with only some spotty to isolated showers. Winds will likely gust anywhere from 25 to 30 mph, with winds set to die down into the evening. The quieter weather will remain for the first half of the day tomorrow before more rain builds into the region. Expect generally mostly cloudy to overcast skies this week, with daily highs warming into the 50s.

OUTLOOK AHEAD: Much cooler weather looks likely for much of the state, as August draws to a close. The overall weather pattern continues to favor more storms, with Western Alaska not only seeing most of the action, but the coolest departure from normal. Through the next two weeks, highs across much of Alaska will top out in the 40- to 65-degree range.

Have a wonderful Tuesday!