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Ended official alertUpdated

Special Marine Warning for Rota Coastal Waters; Tinian Coastal Waters

This alert has ended.Kept for recent context. Do not use it as a current warning.

Official alert fields

What you need to know

Effective
Ended
Official severity
Severe
Official urgency
Immediate
Official certainty
Likely

What is happening

SMWGUM THE NATIONAL WEATHER SERVICE IN TIYAN GUAM HAS ISSUED A

What the bulletin says to do

MOVE TO SAFE HARBOR UNTIL HAZARDOUS WEATHER PASSES. MOVE TO SAFE HARBOR IMMEDIATELY AS GUSTY WINDS AND HIGH WAVES ARE EXPECTED. BOATERS SHOULD SEEK SAFE HARBOR IMMEDIATELY UNTIL THIS STORM PASSES. WIND GUSTS 30 KNOTS OR GREATER...SMALL HAIL...HIGH WAVES...DANGEROUS LIGHTNING...AND HEAVY RAIN ARE POSSIBLE WITH THIS STORM. THUNDERSTORMS CAN PRODUCE SUDDEN WATERSPOUTS. WATERSPOUTS CAN EASILY OVERTURN BOATS AND CREATE LOCALLY HAZARDOUS SEAS. SEEK SAFE HARBOR IMMEDIATELY.

Full official description

Bulletin details

SMWGUM THE NATIONAL WEATHER SERVICE IN TIYAN GUAM HAS ISSUED A * SPECIAL MARINE WARNING FOR... ROTA COASTAL WATERS... TINIAN COASTAL WATERS... * UNTIL 1030 PM CHST. * AT 945 PM CHST...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING WATERSPOUTS WAS LOCATED OVER THE NORTH-CENTRAL COASTAL WATERS OF ROTA...MOVING NORTHEAST AROUND 10 KNOTS. HAZARD...WATERSPOUTS...WIND GUSTS 30 KNOTS OR GREATER...AND SMALL HAIL. SOURCE...RADAR. IMPACT...WATERSPOUTS CAN EASILY OVERTURN BOATS AND CREATE LOCALLY HAZARDOUS SEAS. SMALL CRAFT COULD BE DAMAGED IN BRIEFLY HIGHER WINDS AND SUDDENLY HIGHER WAVES. * THE SEVERE THUNDERSTORM WILL REMAIN OVER MAINLY OPEN WATERS.

Lifecycle record

Official revisions

1 captured
  1. Alert

    Special Marine Warning issued August 16 at 9:45PM ChST until August 16 at 10:30PM 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
Alert
Last collected
Methodology and corrections