Alert archive / Guam / 2025
Weather alerts in Guam, September 2025
7 weather alerts in September 2025, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.
- Alerts
- 7
- Warnings
- 1
- Watches
- 0
- Advisories
- 5
- Busiest day
- September 25, 20252 alerts
Over time
By day
Days in UTC, the clock the archive keeps.
The alerts
Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 31, 9:51 PM CDT | Areal Flood Advisory | GUM | 114 min | |
| Sep 2, 12:19 AM CDT | Areal Flood Advisory | GUM | 85 min | |
| Sep 6, 11:48 PM CDT | Flash Flood Warning | GUM | 61 min | |
| Sep 15, 8:37 PM CDT | Areal Flood Advisory | GUM | 38 min | |
| Sep 24, 11:46 PM CDT | Rip Current Statement | GUM | 49 hr | |
| Sep 24, 11:46 PM CDT | High Surf Advisory | GUM | 49 hr | |
| Sep 27, 9:50 PM CDT | Areal Flood Advisory | GUM | 85 min |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Flooding | |
| Flash Flood Warning | 1 |
| Areal Flood Advisory | 4 |
| Coast and beach | |
| High Surf Advisory | 1 |
| Rip Current Statement | 1 |
Nearby
Alerts in force nowTornadoes on recordThe radar archive20242026
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Rebuilt daily.