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Active official alertUpdated

Small Craft Advisory for Tinian Coastal Waters; Saipan Coastal Waters

Official alert fields

What you need to know

Effective
Ends or expires
Official severity
Minor
Official urgency
Expected
Official certainty
Likely

What is happening

What: For the Small Craft Advisory, west winds 15 to 25 kt with gusts up to 35 kt and seas 8 to 12 feet expected. For the Tropical Storm Watch, west winds 25 to 35 kt with gusts to 40 kt possible. Impacts: Very strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility....

What the bulletin says to do

Inexperienced mariners, especially those operating smaller vessels, should avoid boating in hazardous conditions.

Full official description

Bulletin details

* WHAT...For the Small Craft Advisory, west winds 15 to 25 kt with gusts up to 35 kt and seas 8 to 12 feet expected. For the Tropical Storm Watch, west winds 25 to 35 kt with gusts to 40 kt possible. * WHERE...Tinian Coastal Waters and Saipan Coastal Waters. * WHEN...For the Small Craft Advisory, from 5 PM this afternoon to 5 PM ChST Sunday. For the Tropical Storm Watch beginning late tonight. * IMPACTS...Very strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. * ADDITIONAL DETAILS...Tropical Storm Saudel (17W) is making its approach toward the Marianas, with a storm track across the far northern Marianas. Seas will become hazardous to small craft this afternoon as winds increase to 25 kt and combined seas of 8 to 12 feet through Sunday afternoon. Tropical storm force winds of 34 to 64 kt are only possible if there is a significant westward shift in the track of Tropical Storm Saudel today or tonight.

Official geometry where available

Alert boundary

Lifecycle record

Official revisions

2 captured
  1. Update

    Small Craft Advisory issued August 21 at 10:28AM ChST until August 23 at 5:00PM ChST by NWS Tiyan GU

    Official revision
  2. Alert

    Small Craft Advisory issued August 21 at 9:55AM ChST until August 23 at 5:00PM ChST by NWS Tiyan GU

    Official revision

Source and limitations

Publisher: Weather Alert Watch. Primary source: NWS Tiyan GU. This page reorganizes official fields and does not add a forecast or expand the affected area.

CAP status
Actual
Message type
Update
Last collected
Methodology and corrections