* WHAT...Seas 9 to 11 feet.
* WHERE...Marianas Coastal Waters.
* WHEN...Until 6 AM ChST Friday.
* IMPACTS...Conditions will be hazardous to small craft.
* ADDITIONAL DETAILS...Gentle to fresh westerlies will prevail across the Marianas today, as a westerly monsoon surge slows over the next few days. Combined seas of 8 to 11 feet are expected through Thursday night, to then drop a foot after and persist as such for several more days, remaining hazardous to small craft. As such, the Small Craft Advisory is likely to be extended, if conditions warrant.