Alert archive / Guam / Flash Flood Warnings in 2026
Flash Flood Warning 1, NWS Guam
NWS Guam issued this flash flood warning at Jan 20, 2026, 9:06 PM CST. It was in force for 29 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
- Jan 20, 2026, 9:06 PM CST (03:06 UTC)
- Expired
- Jan 20, 2026, 9:35 PM CST
- In force
- 29 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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 20, 8:20 PM CST | Areal Flood Advisory | GUM | 45 min | |
| Jan 20, 9:08 PM CST | Areal Flood Advisory | GUM | 37 min |
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.