Headline:
High Surf Advisory issued September 3 at 4:47AM ChST until September 4 at 4:00PM ChST by NWS Tiyan GU
Event:
High Surf Advisory
Urgency:
Expected
Effective:
September 2, 2026 - 11:47am
Expires:
September 3, 2026 - 2:00am
Description:
* WHAT...For the High Surf Advisory, large breaking waves of 8 to
10 feet expected in the surf zone. For the High Rip Current Risk,
dangerous rip currents expected.
* WHERE...West-facing reefs of the Marianas.
* WHEN...For the High Surf Advisory, from 6 AM Thursday to 4 PM
ChST Friday. For the High Rip Current Risk, from Thursday morning
through Friday afternoon.
* IMPACTS...Dangerous swimming and surfing conditions and
localized beach erosion. Rip currents can sweep even the best
swimmers away from shore into deeper water.
* ADDITIONAL DETAILS...A monsoon surge will bring large swells
from the southwest to the northwest to the Marianas causing surf
and rip currents to become hazardous. Surf may be slightly higher
for Guam than the CNMI.
Instruction:
Rip currents will be life threatening. Inexperienced swimmers
should remain out of the water due to dangerous surf conditions.
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; Tinian; Saipan
Forcast Office:
NWS Tiyan GU
Sender:
w-nws.webmaster@noaa.gov