Headline:
High Surf Warning issued April 16 at 9:56PM ChST until April 17 at 5:00PM ChST by NWS Tiyan GU
Event:
High Surf Warning
Urgency:
Expected
Effective:
April 16, 2026 - 4:56am
Expires:
April 16, 2026 - 7:00pm
Description:
* WHAT...For the High Surf Warning, dangerously large breaking waves
of 12 to 19 feet in the surf zone. For the Coastal Flood Advisory,
minor coastal flooding of 1 to 2 feet. For the High Surf
Advisory, large breaking waves of 10 to 14 feet expected in the
surf zone. For the High Rip Current Risk, dangerous rip currents.
* WHERE...South, west and north facing reefs and shorelines of
Guam and Rota.
* WHEN... For the High Surf Warning, until 5 PM ChST Friday. For the
Coastal Flood Advisory, until 5 PM ChST Saturday. For the High
Surf Advisory, from 5 PM Friday to 5 PM ChST Saturday. For the High
Rip Current Risk, through Saturday afternoon.
* IMPACTS...Flooding of lots, parks, and roads with only isolated
road closures expected. Breaking waves can sweep people off
jetties and docks, and into dangerous seas. Life-threatening
swimming conditions and significant beach erosion can be expected.
Rip currents can sweep even the best swimmers away from shore into
deeper water.
* ADDITIONAL DETAILS...As TY Sinlaku continues to move away and wind
driven waves decrease, the primary swell and highest surf will be
southwest. Seas will be slow to subside over the next couple of
days. Surf heights of 12 to 17 feet are expected for Guam and 13 to
19 feet for Rota.
Instruction:
Everyone should remain out of the water due to life-threatening
surf conditions. Stay off of jetties, piers, and other waterside
infrastructure.
Rip currents will be life threatening. If caught in a rip
current, relax and float. Don't swim against the current. If
able, swim in a direction following the shoreline. If unable to
escape, face the shore and call or wave for help.
Area Description:
Guam; Rota
Forcast Office:
NWS Tiyan GU
Sender: