Heavy Freezing Spray Warning Issued for Saint Matthew Island Waters Through Thursday Morning

Source: NOAA · Saint Matthew Island Waters, Alaska

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The National Weather Service has issued a Heavy Freezing Spray Warning for Saint Matthew Island Waters, with dangerous ice accumulation and seas up to 22 feet expected.

What this NWS weather alert tells you, and what most readers miss

This notice was issued by NOAA on February 11, 2026 and geographically references Saint Matthew Island Waters, Alaska. Its severity classification of "high" signals how the issuing agency weighs the risk of harm if no action is taken — "critical" and "high" tier alerts typically carry direct consumer actions, while "medium" and "low" tend toward informational guidance or monitoring advisories. The category it belongs to — Weather Alerts — determines the regulatory framework behind it, which shapes what remedies (refunds, replacements, recalls, evacuations) are available to affected individuals and who holds statutory responsibility for enforcement.

Most readers skim a notice like this, check whether they are personally affected, and move on. The more useful lens is to read it as a data point about the issuing system: how quickly NOAA detected the hazard, how precise the geographic or product-identifier scope is, and whether similar notices have clustered in the same category or region in the last 90 days. Cluster patterns frequently precede a broader regulatory action — a single localized NWS weather alert is isolated; three of them within a quarter often indicate a supply-chain, infrastructure, or seasonal driver that will keep producing notices until something structural changes.

For decision-making, Areazine pairs each alert with the original agency URL, the full agency name, and a timestamp so you can verify the notice against the primary source before acting on it. Tags on this item (weather, alert, HeavyFreezingSprayWarning, SaintMatthewIsland) map to related alerts in the same area of risk — browsing them together gives a clearer picture than any single notice alone, because the shape of an ongoing issue only becomes visible across multiple sequential alerts.

Alert Details

Type: Heavy Freezing Spray Warning
Issued by: National Weather Service (NWS) Anchorage, AK
Effective: Wednesday, February 11, 2026, at 5:00 AM AKST
Expires: Thursday, February 12, 2026, at 5:00 AM AKST
Alert Code: UPW

Affected Areas

This warning specifically impacts the Saint Matthew Island Waters (UGC: PKZ767). This includes coastal waters for Southwest Alaska, Bristol Bay, the Alaska Peninsula Waters, and the Aleutian Islands up to 100 nautical miles out.

What You Should Do

Mariners and residents in the affected maritime region are advised to avoid the area. Heavy freezing spray can lead to rapid ice accumulation on vessels, which significantly increases the risk of capsizing or losing stability. Ensure all safety equipment is secured and monitor local maritime forecasts for updates.

Expected Conditions

  • Winds:
    • Tonight: Northeast winds reaching 50 knots west of Saint Matthew Island and East winds at 40 knots to the east.
    • Wednesday: North winds at 45 knots west of the island and Northeast winds at 40 knots to the east.
    • Wednesday Night: North winds sustained at 40 knots.
  • Seas: Waves in ice-free waters are expected to reach 22 feet tonight, subsiding slightly to 20 feet on Wednesday and 17 feet by Wednesday night.
  • Precipitation: Snow showers are expected tonight, followed by steady snow on Wednesday.
  • Hazard: Heavy freezing spray is expected to persist through Wednesday night.

Timeline

The Heavy Freezing Spray Warning begins at 5:00 AM AKST on Wednesday, February 11. Conditions are expected to remain hazardous through Wednesday night, with the warning currently set to expire at 5:00 AM AKST on Thursday, February 12.

Original source: NOAA Official Notice ↗

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Frequently Asked Questions

Common questions about this NWS weather alert.

What is this NWS weather alert about?
The National Weather Service has issued a Heavy Freezing Spray Warning for Saint Matthew Island Waters, with dangerous ice accumulation and seas up to 22 feet expected.
Which agency issued this alert?
This alert was issued by NOAA. The original notice is available at the source link at the bottom of this article.
How severe is this alert?
This alert is classified as "high" severity. Take precautions and monitor for updates.
What area is affected?
This alert affects Saint Matthew Island Waters, Alaska. Check with NOAA for the most current geographic scope.
Where can I find more Weather Alerts updates?
Browse the full Weather Alerts feed on Areazine at areazine.com/weather/ for the latest updates from NOAA and other agencies.