Heavy Freezing Spray Warning Issued for Alaska Peninsula Waters from Sitkinak to Castle Cape
This alert is no longer in effect.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).
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NWS Anchorage has issued a Heavy Freezing Spray Warning for waters between Sitkinak and Castle Cape, effective through Tuesday afternoon as extreme spray rates are expected.
Read this weather record in 30 seconds
- Record type
- Heavy Freezing Spray Warning
- Affected area
- Southwest Alaska Coastal Waters
- Issued
- April 6, 2026
- Issuing authority
- NWS Anchorage AK
The warning type, named area, and issue time define this record. Confirm all three against the original agency notice before treating it as current.
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
The National Weather Service in Anchorage, AK, has issued a Heavy Freezing Spray Warning for coastal waters. This alert is classified as a severe meteorological event with high certainty of occurrence.
Affected Areas
The warning specifically covers the coastal waters from Sitkinak to Castle Cape out to 15 nautical miles.
What You Should Do
Mariners and vessel operators are advised to avoid the warning area. Extreme freezing spray can accumulate on vessels at a rate of 4 cm per hour or greater, which may rapidly lead to dangerous ice buildup and compromise vessel stability.
Expected Conditions
- Winds: Northwest winds are forecast to reach speeds of 40 to 45 knots.
- Seas: Average wave heights are expected to range between 7 and 9 feet.
- Spray Accumulation: Heavy freezing spray is forecast for Monday. By Tuesday, conditions are expected to worsen with extreme freezing spray accumulating at a rate of 4 cm per hour or greater.
Timeline
The warning is effective as of March 9, 2026, at 4:02 AM AKDT and is currently set to expire on March 10, 2026, at 5:00 PM AKDT.
Original source: NOAA Official Notice ↗
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