Storm Warning Issued for Sitkinak to Castle Cape: Winds Up to 70 Knots Expected

Source: NOAA · Southwest Alaska Coastal Waters

This alert is no longer in effect.

NOAA issued it on April 6, 2026, 4 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).

Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.

The National Weather Service has issued a Storm Warning for coastal waters from Sitkinak to Castle Cape, forecasting dangerous winds and 20-foot seas through Friday evening.

Read this weather record in 30 seconds

Record type
Storm Warning
Affected area
Southwest Alaska Coastal Waters
Issued
April 6, 2026
Issuing authority
NWS Anchorage AK

Storm notices can cover different combinations of wind, hail, lightning, and rainfall. Use the original notice for the hazards and boundaries attached to this specific record.

Record status: historical. It was issued 4 months ago; use the issuing agency's live warning service for current conditions in Southwest Alaska Coastal Waters.

Alert Details

A Storm Warning has been issued by the National Weather Service (NWS) Anchorage AK. The alert is effective from 5:00 AM AKST on February 20, 2026, until 5:00 PM AKST the same day.

Affected Areas

The warning covers the coastal waters from Sitkinak to Castle Cape, specifically from 15 to 100 nautical miles out (Zone PKZ751).

What You Should Do

Mariners and residents in the affected maritime region are advised to avoid the area. The NWS response instruction for this event is to avoid travel within the warning zone due to hazardous conditions.

Expected Conditions

Extreme maritime conditions are forecast for Friday, including:

  • Wind Speed: Northwest winds of 55 knots with gusts reaching up to 70 knots.
  • Sea Heights: Average of the highest one-third of waves reaching 20 feet.
  • Additional Hazards: Freezing spray is expected throughout the day.

Timeline

  • Onset: Friday, February 20, at 5:00 AM AKST.
  • Duration: The Storm Warning remains in effect until 5:00 PM AKST on Friday.
  • Outlook: Conditions are expected to begin moderating Friday night, with winds diminishing to 45 knots and gusts to 60 knots before midnight. By Saturday, winds are forecast to decrease to 30 knots with 12-foot seas.

Original source: NOAA Official Notice ↗

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Frequently Asked Questions

Common questions about this NWS weather alert.

What is this NWS weather alert about?
The National Weather Service has issued a Storm Warning for coastal waters from Sitkinak to Castle Cape, forecasting dangerous winds and 20-foot seas through Friday evening.
Which agency issued this alert?
This alert was issued by NOAA. The original notice is available at the source link at the bottom of this article.
How severe is this alert?
This alert is classified as "high" severity. Take precautions and monitor for updates.
What area is affected?
This alert affects Southwest Alaska Coastal Waters. Check with NOAA for the most current geographic scope.
Where can I find more Weather Alerts updates?
Browse the full Weather Alerts feed on Areazine at areazine.com/weather/ for the latest updates from NOAA and other agencies.