Alert archive / Guam / High Surf Advisories in 2021
High Surf Advisory 21, NWS Guam
NWS Guam issued this high surf advisory at Dec 10, 2021, 6:12 PM CST. It was in force for 53 hr.
The area
The counties it named.
The facts
- Issued
- Dec 10, 2021, 6:12 PM CST (00:12 UTC)
- Expired
- Dec 12, 2021, 11:24 PM CST
- In force
- 53 hr
- Issued by
- NWS Guam
The text
As transmitted.
570 WHMY40 PGUM 110012 CFWGUM Coastal Hazard Message National Weather Service Tiyan GU 1012 AM ChST Sat Dec 11 2021 GUZ001>004-110815- /O.NEW.PGUM.SU.Y.0021.211211T0012Z-211213T2000Z/ /O.CON.PGUM.RP.S.0025.000000T0000Z-211214T0800Z/ Guam-Rota-Tinian-Saipan- 1012 AM ChST Sat Dec 11 2021 ...HIGH SURF ADVISORY IN EFFECT THROUGH MONDAY NIGHT... ...HIGH RISK OF RIP CURRENTS THROUGH TUESDAY AFTERNOON... * WHAT...Large breaking waves of 8 to 10 feet and dangerous rip currents. * WHERE...For the high surf advisory, along north facing reefs. For the high risk of rip currents, along north and east facing reefs. * WHEN...For the High Surf Advisory, until 6 AM Tuesday. For the High Rip Current Risk, through Tuesday 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...Both north and east swell will build further on Sunday, possibly causing surf along east facing shores to become hazardous. Surf is expected to peak Monday, then slowly subside. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced swimmers should stay out of the water along north and east facing shores. Elsewhere, swim near a lifeguard. If caught in a rip current, swim in a direction following the shoreline until you are out of the current, then head in to shore. && $$ Aydlett
5 follow-up statements
794 WHMY40 PGUM 110452 CFWGUM Coastal Hazard Message National Weather Service Tiyan GU 252 PM ChST Sat Dec 11 2021 GUZ001>004-111800- /O.CON.PGUM.SU.Y.0021.000000T0000Z-211213T2000Z/ /O.CON.PGUM.RP.S.0025.000000T0000Z-211214T0800Z/ Guam-Rota-Tinian-Saipan- 252 PM ChST Sat Dec 11 2021 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 6 AM CHST TUESDAY... ...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH TUESDAY AFTERNOON... * WHAT...Large breaking waves of 8 to 10 feet and dangerous rip currents. * WHERE...For the high surf advisory, along north facing reefs. For the high risk of rip currents, along north and east facing reefs. * WHEN...For the High Surf Advisory, until 6 AM Tuesday. For the High Rip Current Risk, through Tuesday afternoon. * IMPACTS...Dangerous swimming and surfing conditions and localized beach erosion. Rip currents can sweep even the best swimmers away from shore into deeper water. * ADDITIONAL DETAILS...Both north and east swell will build further on Sunday, possibly causing surf along east facing shores to become hazardous. Surf is expected to peak Monday, then slowly subside. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced swimmers should remain out of the water due to dangerous surf conditions. Swim near a lifeguard. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help. && $$ NS
193 WHMY40 PGUM 111957 CFWGUM Coastal Hazard Message National Weather Service Tiyan GU 557 AM ChST Sun Dec 12 2021 GUZ001>004-120900- /O.CON.PGUM.SU.Y.0021.000000T0000Z-211213T2000Z/ /O.CON.PGUM.RP.S.0025.000000T0000Z-211214T0800Z/ Guam-Rota-Tinian-Saipan- 557 AM ChST Sun Dec 12 2021 ...HIGH SURF ADVISORY IN EFFECT THROUGH 6 AM TUESDAY... ...HIGH RISK OF RIP CURRENTS THROUGH TUESDAY AFTERNOON... * WHAT...Large breaking waves of 9 to 12 feet and dangerous rip currents. * WHERE...North and east facing reefs of the Marianas. * WHEN...For the High Surf Advisory, until 6 AM Tuesday. For the High Rip Current Risk, through Tuesday 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...Large north and east swell are expected to peak today or tonight before slowly subsiding Monday or Monday night. Surf along east facing reefs could fall below hazardous levels of 12 feet sometime Monday, with surf along north facing reefs possibly falling below hazardous levels of 9 feet Monday night. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced swimmers should stay out of the water along north and east facing shores. Elsewhere, swim near a lifeguard. If caught in a rip current, swim in a direction following the shoreline until you are out of the current, then head in to shore. && $$ Aydlett
960 WHMY40 PGUM 120653 CFWGUM Coastal Hazard Message National Weather Service Tiyan GU 453 PM ChST Sun Dec 12 2021 GUZ001>004-122000- /O.CON.PGUM.SU.Y.0021.000000T0000Z-211213T2000Z/ /O.CON.PGUM.RP.S.0025.000000T0000Z-211214T0800Z/ Guam-Rota-Tinian-Saipan- 453 PM ChST Sun Dec 12 2021 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 6 AM TUESDAY... ...HIGH RIP CURRENT RISK THROUGH TUESDAY AFTERNOON... * WHAT...Large breaking waves of 9 to 12 feet and dangerous rip currents. * WHERE...North and east facing reefs of the Marianas. * WHEN...For the High Surf Advisory, until 6 AM Tuesday. For the High Rip Current Risk, through Tuesday afternoon. * IMPACTS...Dangerous swimming and surfing conditions and localized beach erosion. Rip currents can sweep even the best swimmers away from shore into deeper water. * ADDITIONAL DETAILS...Large north and east swell are expected to peak tonight, then slowly subside Monday into Monday night. Surf along east facing reefs could fall below hazardous levels of 12 feet sometime Monday, with surf along north facing reefs possibly falling below hazardous levels of 9 feet Monday night. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced swimmers should remain out of the water due to dangerous surf conditions. Swim near a lifeguard. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help. && $$ Kleeschulte
092 WHMY40 PGUM 121717 CFWGUM Coastal Hazard Message National Weather Service Tiyan GU 317 AM ChST Mon Dec 13 2021 GUZ001>004-130800- /O.CON.PGUM.SU.Y.0021.000000T0000Z-211213T2000Z/ /O.CON.PGUM.RP.S.0025.000000T0000Z-211214T0800Z/ Guam-Rota-Tinian-Saipan- 317 AM ChST Mon Dec 13 2021 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 6 AM TUESDAY ALONG NORTH AND EAST FACING REEFS... ...HIGH RIP CURRENT RISK REMAINS IN EFFECT ALONG NORTH AND EAST FACING REEFS THROUGH TUESDAY AFTERNOON... * WHAT...Large breaking waves of 9 to 12 feet and dangerous rip currents. * WHERE...North and east facing reefs of the Marianas. * WHEN...For the High Surf Advisory, until 6 AM Tuesday. For the High Rip Current Risk, through Tuesday 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...Large north and east swell are expected to slowly subside beginning today. Surf along east facing reefs could fall below hazardous levels of 12 feet sometime today, with surf along north facing reefs possibly falling below hazardous levels of 9 feet tonight. East swell may take a little longer to subside, and as such, a high rip current risk may extend past Tuesday afternoon, possibly lasting through Wednesday afternoon. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced swimmers should stay out of the water along north and east facing shores. Elsewhere, swim near a lifeguard. If caught in a rip current, swim in a direction following the shoreline until you are out of the current, then head in to shore. && $$ E.Pavliukoit
596 WHMY40 PGUM 130524 CFWGUM Coastal Hazard Message National Weather Service Tiyan GU 324 PM ChST Mon Dec 13 2021 GUZ001>004-132030- /O.CAN.PGUM.SU.Y.0021.000000T0000Z-211213T2000Z/ /O.EXT.PGUM.RP.S.0025.000000T0000Z-211215T0800Z/ Guam-Rota-Tinian-Saipan- 324 PM ChST Mon Dec 13 2021 ...HIGH RISK OF RIP CURRENTS TO CONTINUE THROUGH WEDNESDAY... ...HIGH SURF ADVISORY IS CANCELLED... * WHAT...Dangerous rip currents. * WHERE...East facing reefs of the Marianas. * WHEN...Through Wednesday. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water. PRECAUTIONARY/PREPAREDNESS ACTIONS... Swim near a lifeguard. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help. && $$ Middlebrooke
Nearby
High Surf Advisories in Guam, 2021Every high surf advisory in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.