Alert archive / Guam / Flash Flood Warnings in 2026

Flash Flood Warning 33, NWS Guam

October 1, 2026

NWS Guam issued this flash flood warning at Oct 1, 2026, 6:45 PM CDT. It was in force for 75 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Oct 1, 2026, 6:45 PM CDT (23:45 UTC)
Expired
Oct 1, 2026, 8:00 PM CDT
In force
75 min
Issued by
NWS Guam
Area
Storm-based polygon
Flood severity
None

The office that day

Everything else NWS Guam issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 30, 10:59 PM CDTAreal Flood AdvisoryGUM6 hr
Oct 1, 4:59 AM CDTGale WarningGUM45 hr
Oct 1, 4:59 AM CDTHazardous Seas WatchGUM45 hr
Oct 1, 5:18 AM CDTAreal Flood AdvisoryGUM4 hr
Oct 1, 9:18 AM CDTAreal Flood AdvisoryGUM117 min
Oct 1, 11:14 AM CDTSmall Craft AdvisoryGUM13 hr
Oct 1, 11:29 AM CDTAreal Flood AdvisoryGUM106 min
Oct 1, 1:19 PM CDTAreal Flood AdvisoryGUM4 hr
Oct 1, 1:22 PM CDTAreal Flood AdvisoryGUM5 hr

Nearby

Flash Flood Warnings in Guam, 2026Every flash flood warning in 2026

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.