Heavy Freezing Spray Warning Issued for Port Heiden to Nelson Lagoon Through Wednesday Morning

Weather Alerts high NOAA · · Southwest Alaska

The National Weather Service has issued a Heavy Freezing Spray Warning for Southwest Alaska coastal waters, with dangerous conditions expected to peak Tuesday night.

Alert Details

The National Weather Service (NWS) Anchorage AK has issued a Heavy Freezing Spray Warning for coastal waters in Southwest Alaska. This alert is classified as a severe meteorological event by the issuing agency.

Affected Areas

The warning specifically covers the maritime region from Port Heiden to Nelson Lagoon, extending from 15 to 60 nautical miles (NM) out.

What You Should Do

According to the National Weather Service, the recommended response is to avoid the affected area. Mariners should be prepared for significant ice accumulation on vessels, which can impact stability and safety. Monitor local maritime forecasts for updates on wind and sea conditions.

Expected Conditions

Conditions are expected to deteriorate through the middle of the week:

  • Tuesday Night: North winds are forecast at 30 knots with seas reaching 11 feet. Heavy freezing spray is expected to begin after midnight.
  • Wednesday: North winds will continue at 30 knots with seas remaining at 11 feet.
  • Current Conditions: As of Monday night, West winds are at 25 knots with 8-foot seas. Freezing spray is expected to begin Tuesday during the day with North winds at 20 knots.

Timeline

  • Alert Issued: February 23 at 3:25 PM AKST
  • Onset of Heavy Spray: Tuesday night, February 24, after midnight
  • Warning Expiration: February 25 at 5:00 AM AKST

Source: NOAA Official Notice