Storm Warning Issued for Clarence Strait and Southeast Alaska Inside Waters Through Thursday

Weather Alerts high NOAA · · Southeast Alaska

The National Weather Service has issued a Storm Warning for Clarence Strait, with south winds up to 45 knots and seas reaching 19 feet expected through Thursday afternoon.

Alert Details

A Storm Warning has been issued by the National Weather Service (NWS) Juneau AK. The alert is effective starting at 5:00 AM AKST on Thursday, February 12, 2026, and remains in effect until 5:00 PM AKST that same day.

Affected Areas

The warning specifically impacts the following regions:

  • Clarence Strait
  • Southeast Alaska Inside Waters from Dixon Entrance to Skagway

What You Should Do

According to the National Weather Service, the recommended response is to avoid the area. Mariners and residents in the affected zones should take necessary precautions to secure vessels and property before the onset of storm conditions.

Expected Conditions

Forecasters expect the following conditions during the warning period on Thursday:

  • Wind: South winds at 45 knots. Wind forecasts reflect the predominant speed and direction expected.
  • Seas: Average heights of 14 feet, with waves reaching up to 19 feet near ocean entrances. Sea forecasts represent the average of the highest one-third of combined windwave and swell height.
  • Precipitation: Rain showers are expected, along with a slight chance of thunderstorms.

Conditions leading up to the warning on Wednesday night include south winds of 35 knots and 14-foot seas with rain showers.

Timeline

  • Onset: Thursday, February 12, at 5:00 AM AKST
  • Duration: The storm conditions are expected to peak during the day Thursday.
  • Expiration: The warning is currently set to expire at 5:00 PM AKST on Thursday, February 12.

Following the warning period, winds are expected to diminish to 25 knots on Thursday night with seas subsiding to 8 feet.