Heavy Freezing Spray and Gale Warnings Issued for Southern Lynn Canal
NWS Juneau warns of rapid ice accumulation and gale-force winds in Southern Lynn Canal, with heavy freezing spray expected to impact vessel stability through Tuesday.
Alert Details
The National Weather Service in Juneau has issued a Heavy Freezing Spray Warning and a Gale Warning for the Southern Lynn Canal. These alerts signify a high risk to maritime operations due to rapid ice accumulation and extreme wind conditions.
Affected Areas
This alert specifically covers the Southern Lynn Canal region.
What You Should Do
Mariners should take immediate action to prepare for dangerous ice accumulation on their vessels. The NWS advises remaining in port or seeking safe harbor. If currently at sea, mariners should avoid the warning area, alter course, and secure the vessel for hazardous conditions to prevent catastrophic loss of stability. Freezing spray may render mechanical and electronic components inoperative.
Expected Conditions
- Freezing Spray: Heavy accumulation at a rate of 2 cm per hour or greater is expected.
- Wind: North winds between 30 to 40 knots, with gusts reaching up to 45 knots.
- Seas: Wave heights between 10 to 15 feet.
- Impacts: Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Strong winds and hazardous seas could capsize or damage vessels and significantly reduce visibility.
Timeline
- Heavy Freezing Spray Warning: Effective from 9:00 PM AKST Monday, March 2, until 12:00 PM AKST Tuesday, March 3.
- Gale Warning: Remains in effect until 6:00 PM AKST Tuesday, March 3.
Source: NOAA Official Notice