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Live/Severe Alerts/Record/Special Marine Warning

Warning

Special Marine Warning

Guam Coastal Waters; Rota Coastal Waters

Ended Oct 19, 12:45 PM

Moving north at 49 mph
50 MI
50 MI
Map of the Special Marine Warning over Guam Coastal Waters, with the area it draws around the storm. Drawn on the national sheet; the scale is at its foot.
In force from
Oct 19, 12:00 PM
Until
Oct 19, 12:45 PM
Issued
Oct 19, 12:00 PM
Office
Tiyan, GU
Number
37 of its kind from this office this year
Severity
Severe
Storm motion
Moving north at 49 mph
Where
Marianas waters

THE NATIONAL WEATHER SERVICE IN TIYAN GUAM HAS ISSUED A

Special marine warning for
GUAM COASTAL WATERS... ROTA COASTAL WATERS...

* UNTIL 1245 PM CHST.

* AT 1157 AM CHST...STRONG THUNDERSTORMS WERE LOCATED OVER CENTRAL GUAM WATERS AND SOUTHERN ROTA WATERS, MOVING NORTH AT 35 KNOTS.

Hazard
WIND GUSTS 34 KNOTS OR GREATER.
Source
RADAR.
Impact
SMALL CRAFT COULD BE DAMAGED IN BRIEFLY HIGHER WINDS AND SUDDENLY HIGHER WAVES.

* THE STRONG THUNDERSTORM WILL REMAIN OVER MAINLY OPEN WATERS.

What to do

MOVE TO SAFE HARBOR UNTIL HAZARDOUS WEATHER PASSES.

MOVE TO SAFE HARBOR IMMEDIATELY AS GUSTY WINDS AND HIGH WAVES ARE EXPECTED.

Read the platesWaterspout FB-EVT-012How to read a warning FB-STN-001

On the radarForecast gusts over itRadar

Every warning of October 19, 2026Every severe alert in force