Heavy Freezing Spray Warning Issued for Nelson Lagoon to Cape Sarichef
This alert is no longer in effect.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 between Nelson Lagoon and Cape Sarichef, with hazardous conditions expected Thursday night.
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 (NWS Alert Code: UPW). This alert indicates that conditions are likely to cause significant ice accumulation on vessels in the region.
Affected Areas
The warning covers the coastal waters from Nelson Lagoon to Cape Sarichef, extending out to 15 nautical miles. This includes the Alaska Peninsula waters and the Aleutian Islands up to 100 nm out.
What You Should Do
Mariners and residents in the affected coastal areas are advised to avoid the area during the warning period. Heavy freezing spray can lead to rapid ice accumulation on ships, which can impact vessel stability and safety.
Expected Conditions
Conditions are expected to deteriorate on Thursday, March 5.
- Thursday Night: Northeast winds are forecast at 40 knots with seas reaching 11 feet. Snow and heavy freezing spray are expected.
- Thursday Afternoon: North winds of 20 knots will increase to northeast 30 knots with seas of 5 feet and freezing spray.
- Friday: Northwest winds at 30 knots with seas remaining at 11 feet.
Timeline
The Heavy Freezing Spray Warning is effective starting Thursday, March 5, at 5:00 PM AKST. The warning is currently scheduled to expire on Friday, March 6, at 5:00 AM AKST.
Original source: NOAA Official Notice ↗
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