Dededo, Guam
Regional Weather Alerts
| Alert: | High Surf Advisory |
| Area(s): | Guam; Rota; Tinian; Saipan |
| Effective: | 2026-02-23 @ 11:12 pm -> 2026-02-25 @ 1:00 am |
| Onset: | 2026-02-23 @ 11:12 pm -> 2026-02-24 @ 1:15 pm |
| Severity: | Minor |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Tiyan GU on 2026-02-23 @ 11:12 pm |
| Headline: | High Surf Advisory issued February 24 at 3:12PM ChST until February 25 at 5:00PM ChST by NWS Tiyan GU |
| Description: |
* WHAT...For the High Surf Warning, dangerously large breaking waves of 10 to 15 feet expected in the surf zone. For the High Surf Advisory, large breaking waves of 9 to 12 feet in the surf zone. For the High Rip Current Risk, dangerous rip currents. For the Coastal Flood Statement, isolated minor coastal flooding expected. * WHERE...For the High Surf Warning east facing reefs of the Marianas. For the High Surf Advisory and High Rip Current Risk, north and east facing reefs. * WHEN...For the High Surf Warning, from 5 PM Wednesday to 5 PM ChST Friday. For the High Surf Advisory, until 5 PM ChST Wednesday. For the High Rip Current Risk, through Wednesday afternoon. For the Coastal Flood Statement, from late tonight through Thursday afternoon. * IMPACTS...Some water on low lying roads and property. Breaking waves can sweep people off jetties and docks, and into dangerous seas. Life-threatening swimming conditions and significant beach erosion can be expected. Rip currents can sweep even the best swimmers away from shore into deeper water. * ADDITIONAL DETAILS...Surf remains hazardous due to a building primary northeast trade swell associated with a southward-moving shear line. Late tonight, a significant pulse of trade swell is expected to rapidly build across the Marianas, reinforced by a strong trade-wind surge behind the shear line. Surf is expected to become dangerous along east facing reefs Wednesday evening until Friday afternoon. Surf will remain hazardous along north facing reefs until Friday afternoon as well. |
| Alert: | Rip Current Statement |
| Area(s): | Guam; Rota; Tinian; Saipan |
| Effective: | 2026-02-23 @ 11:12 pm -> 2026-02-25 @ 1:00 am |
| Onset: | 2026-02-23 @ 11:12 pm -> 2026-02-24 @ 1:15 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Tiyan GU on 2026-02-23 @ 11:12 pm |
| Headline: | Rip Current Statement issued February 24 at 3:12PM ChST until February 25 at 5:00PM ChST by NWS Tiyan GU |
| Description: |
* WHAT...For the High Surf Warning, dangerously large breaking waves of 10 to 15 feet expected in the surf zone. For the High Surf Advisory, large breaking waves of 9 to 12 feet in the surf zone. For the High Rip Current Risk, dangerous rip currents. For the Coastal Flood Statement, isolated minor coastal flooding expected. * WHERE...For the High Surf Warning east facing reefs of the Marianas. For the High Surf Advisory and High Rip Current Risk, north and east facing reefs. * WHEN...For the High Surf Warning, from 5 PM Wednesday to 5 PM ChST Friday. For the High Surf Advisory, until 5 PM ChST Wednesday. For the High Rip Current Risk, through Wednesday afternoon. For the Coastal Flood Statement, from late tonight through Thursday afternoon. * IMPACTS...Some water on low lying roads and property. Breaking waves can sweep people off jetties and docks, and into dangerous seas. Life-threatening swimming conditions and significant beach erosion can be expected. Rip currents can sweep even the best swimmers away from shore into deeper water. * ADDITIONAL DETAILS...Surf remains hazardous due to a building primary northeast trade swell associated with a southward-moving shear line. Late tonight, a significant pulse of trade swell is expected to rapidly build across the Marianas, reinforced by a strong trade-wind surge behind the shear line. Surf is expected to become dangerous along east facing reefs Wednesday evening until Friday afternoon. Surf will remain hazardous along north facing reefs until Friday afternoon as well. |
| Alert: | Coastal Flood Statement |
| Area(s): | Guam; Rota; Tinian; Saipan |
| Effective: | 2026-02-23 @ 11:12 pm -> 2026-02-26 @ 1:00 am |
| Onset: | 2026-02-24 @ 1:00 pm -> 2026-02-24 @ 1:15 pm |
| Severity: | Minor |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Tiyan GU on 2026-02-23 @ 11:12 pm |
| Headline: | Coastal Flood Statement issued February 24 at 3:12PM ChST until February 26 at 5:00PM ChST by NWS Tiyan GU |
| Description: |
* WHAT...For the High Surf Warning, dangerously large breaking waves of 10 to 15 feet expected in the surf zone. For the High Surf Advisory, large breaking waves of 9 to 12 feet in the surf zone. For the High Rip Current Risk, dangerous rip currents. For the Coastal Flood Statement, isolated minor coastal flooding expected. * WHERE...For the High Surf Warning east facing reefs of the Marianas. For the High Surf Advisory and High Rip Current Risk, north and east facing reefs. * WHEN...For the High Surf Warning, from 5 PM Wednesday to 5 PM ChST Friday. For the High Surf Advisory, until 5 PM ChST Wednesday. For the High Rip Current Risk, through Wednesday afternoon. For the Coastal Flood Statement, from late tonight through Thursday afternoon. * IMPACTS...Some water on low lying roads and property. Breaking waves can sweep people off jetties and docks, and into dangerous seas. Life-threatening swimming conditions and significant beach erosion can be expected. Rip currents can sweep even the best swimmers away from shore into deeper water. * ADDITIONAL DETAILS...Surf remains hazardous due to a building primary northeast trade swell associated with a southward-moving shear line. Late tonight, a significant pulse of trade swell is expected to rapidly build across the Marianas, reinforced by a strong trade-wind surge behind the shear line. Surf is expected to become dangerous along east facing reefs Wednesday evening until Friday afternoon. Surf will remain hazardous along north facing reefs until Friday afternoon as well. |
| Alert: | High Surf Warning |
| Area(s): | Guam; Rota; Tinian; Saipan |
| Effective: | 2026-02-23 @ 11:12 pm -> 2026-02-27 @ 1:00 am |
| Onset: | 2026-02-25 @ 1:00 am -> 2026-02-24 @ 1:15 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Tiyan GU on 2026-02-23 @ 11:12 pm |
| Headline: | High Surf Warning issued February 24 at 3:12PM ChST until February 27 at 5:00PM ChST by NWS Tiyan GU |
| Description: |
* WHAT...For the High Surf Warning, dangerously large breaking waves of 10 to 15 feet expected in the surf zone. For the High Surf Advisory, large breaking waves of 9 to 12 feet in the surf zone. For the High Rip Current Risk, dangerous rip currents. For the Coastal Flood Statement, isolated minor coastal flooding expected. * WHERE...For the High Surf Warning east facing reefs of the Marianas. For the High Surf Advisory and High Rip Current Risk, north and east facing reefs. * WHEN...For the High Surf Warning, from 5 PM Wednesday to 5 PM ChST Friday. For the High Surf Advisory, until 5 PM ChST Wednesday. For the High Rip Current Risk, through Wednesday afternoon. For the Coastal Flood Statement, from late tonight through Thursday afternoon. * IMPACTS...Some water on low lying roads and property. Breaking waves can sweep people off jetties and docks, and into dangerous seas. Life-threatening swimming conditions and significant beach erosion can be expected. Rip currents can sweep even the best swimmers away from shore into deeper water. * ADDITIONAL DETAILS...Surf remains hazardous due to a building primary northeast trade swell associated with a southward-moving shear line. Late tonight, a significant pulse of trade swell is expected to rapidly build across the Marianas, reinforced by a strong trade-wind surge behind the shear line. Surf is expected to become dangerous along east facing reefs Wednesday evening until Friday afternoon. Surf will remain hazardous along north facing reefs until Friday afternoon as well. |