492
WHGM70 PGUM 260616
MWWGUM

URGENT - MARINE WEATHER MESSAGE
National Weather Service Tiyan GU
416 PM ChST Sat Jul 26 2025

PMZ152>154-262030-
/O.CON.PGUM.SE.W.0001.000000T0000Z-250726T2000Z/
/O.EXT.PGUM.SC.Y.0041.250726T2000Z-250727T2000Z/
Rota Coastal Waters-Tinian Coastal Waters-Saipan Coastal Waters-
416 PM ChST Sat Jul 26 2025

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 6 AM CHST
SUNDAY...
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 6 AM SUNDAY TO 6 AM
CHST MONDAY...

* WHAT...For the Hazardous Seas Warning, very steep and hazardous
  seas 12 to 15 feet. For the Small Craft Advisory, southwest
  winds 15 to 25 kt with gusts to 35 kt and seas 9 to 12 feet
  expected.

* WHERE...Rota, Tinian and Saipan Coastal Waters.

* WHEN...For the Hazardous Seas Warning, until 6 AM ChST Sunday.
  For the Small Craft Advisory, from 6 AM Sunday to 6 AM ChST
  Monday.

* IMPACTS...Very steep and hazardous seas could capsize or
  cause damage to vessels.

* ADDITIONAL DETAILS...Highest seas will be across western waters
  of Rota, Tinian and Saipan. Winds will also be 20 to 30 kt with
  gusts around 40 kt during the Hazardous Seas Warning period.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PMZ151-262030-
/O.EXT.PGUM.SC.Y.0040.000000T0000Z-250727T2000Z/
Guam Coastal Waters-
416 PM ChST Sat Jul 26 2025

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 AM CHST MONDAY...

* WHAT...Southwest 15 to 25 kt, and seas 9 to 13 feet.

* WHERE...Guam Coastal Waters.

* WHEN...Until 6 AM ChST Monday.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...Highest winds and seas will be across the
  northern and western waters.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

Slagle