GU public alert page

Guam weather alerts

Official NWS alerts matched to Guam by NWS zone codes and CAP geocodes.

NWS feedSource freshLast successful check: Oct 14, 2026, 4:51 PM UTC

Current answer

1 active alert

Open official NWS results

Active Official severity: Unknown

Hydrologic Outlook for Guam, GU; Rota, MP; Saipan, MP +1 more

Guam, Rota, Saipan and 1 more

Until Oct 17, 2026, 12:15 AM UTC

Verified NWS zones

Areas in Guam

GuamGUC010 · county1 active GuamGUZ001 · public0 active

Context only

Recently ended

Ended Official severity: Severe

Flash Flood Warning for Guam, GU

Ended Oct 10, 2026, 2:21 AM UTC

Ended Official severity: Severe

Flash Flood Warning for Guam, GU

Ended Oct 10, 2026, 2:26 AM UTC

Ended Official severity: Severe

Flood Watch for Guam

Ended Oct 10, 2026, 5:37 PM UTC

Ended Official severity: Minor

Flood Advisory for Guam, GU

Ended Oct 10, 2026, 1:02 PM UTC

Ended Official severity: Minor

Flood Advisory for Guam, GU

Ended Oct 10, 2026, 8:30 AM UTC

Ended Official severity: Minor

Flood Advisory for Guam, GU

Ended Oct 10, 2026, 4:15 AM UTC

Ended Official severity: Minor

Flood Advisory for Guam, GU

Ended Oct 10, 2026, 4:15 AM UTC

Ended Official severity: Minor

Flood Advisory for Guam, GU

Ended Oct 9, 2026, 10:30 PM UTC

What this page can confirm

An alert appears here when its official NWS area identifiers map to Guam. State membership alone does not confirm that an alert affects your exact location. Open the alert or use the optional location check.

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