Heavy Freezing Spray Warning Issued for Port Heiden to Nelson Lagoon 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This alert is no longer in effect.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 coastal waters from Port Heiden to Nelson Lagoon, with dangerous maritime conditions expected Thursday.
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 (NWS) Anchorage AK has issued a Heavy Freezing Spray Warning for the coastal waters of Southwest Alaska. The alert is classified as a severe threat with likely certainty, indicating a significant hazard to maritime operations in the region.
Affected Areas
The warning covers the coastal waters from Port Heiden to Nelson Lagoon, specifically the area extending from 15 to 60 nautical miles (NM) offshore. This includes the forecast zone identified as PKZ757.
What You Should Do
Official guidance recommends that mariners and vessel operators avoid the affected area during the warning period. Heavy freezing spray can cause rapid ice accumulation on vessels, which significantly compromises stability and creates hazardous working conditions on deck.
Expected Conditions
According to the NWS forecast, the following conditions are expected during the warning period on Thursday:
- Wind: West winds reaching speeds of 40 knots.
- Seas: Average wave heights of 17 feet.
- Precipitation: Snow showers.
- Primary Hazard: Heavy freezing spray.
Conditions leading up to the warning on Wednesday night include Southwest winds of 30 knots and seas of 14 feet with lighter freezing spray. Following the warning on Thursday night, winds are expected to shift Northwest at 30 knots with seas remaining high at 15 feet.
Timeline
- Onset: The Heavy Freezing Spray Warning begins at 5:00 AM AKST on Thursday, February 12, 2026.
- Duration: The warning is effective through the day Thursday.
- Expiration: The alert is scheduled to end at 5:00 PM AKST on Thursday, February 12, 2026.
Original source: NOAA Official Notice ↗
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