Heavy Freezing Spray Warning Issued for 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This alert is no longer in effect.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).
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The National Weather Service has issued a Heavy Freezing Spray Warning for the waters between Port Heiden and Nelson Lagoon, effective from Sunday morning through Monday morning.
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 (NWS code UPW) for specific coastal waters. This alert is in effect from early Sunday morning through early Monday morning.
Affected Areas
The warning specifically covers the coastal waters from Port Heiden to Nelson Lagoon, extending from 15 to 60 nautical miles offshore. This region includes portions of the Southwest Alaska, Bristol Bay, and Alaska Peninsula waters.
What You Should Do
Mariners and vessel operators are advised to avoid the warning area. Heavy freezing spray can cause rapid ice accumulation on vessels, which poses a significant risk to vessel stability and safety at sea.
Expected Conditions
- Winds: Northeast winds are forecast at 30 knots on Sunday, decreasing slightly to 25 knots by Sunday night.
- Seas: Average wave heights are expected to reach 10 feet on Sunday, subsiding to approximately 7 feet by Sunday night.
- Hazard: Heavy freezing spray is expected to persist throughout the duration of the warning period.
Timeline
The warning officially begins at 5:00 AM AKST on Sunday, March 1, 2026. The alert is currently scheduled to expire at 5:00 AM AKST on Monday, March 2, 2026.
Original source: NOAA Official Notice ↗
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