Alert archive / Guam / 2026
Weather alerts in Guam, August 2026
20 weather alerts in August 2026, 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
- 20
- Warnings
- 5
- Watches
- 0
- Advisories
- 13
- Busiest day
- August 6, 20263 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 1, 2:21 AM CDT | Rip Current Statement | GUM | 13 days | |
| Aug 2, 12:29 AM CDT | High Surf Advisory | GUM | 12 days | |
| Aug 2, 11:31 AM CDT | Wind Advisory | GUM | 49 hr | |
| Aug 5, 7:38 PM CDT | Areal Flood Advisory | GUM | 4 hr | |
| Aug 5, 9:48 PM CDT | Flash Flood Warning | GUM | 87 min | |
| Aug 6, 3:47 AM CDT | Areal Flood Advisory | GUM | 58 min | |
| Aug 18, 2:10 PM CDT | Areal Flood Advisory | GUM | 110 min | |
| Aug 18, 7:20 PM CDT | Areal Flood Advisory | GUM | 3 hr | |
| Aug 19, 12:05 AM CDT | Flash Flood Warning | GUM | 115 min | |
| Aug 20, 1:17 PM CDT | Rip Current Statement | GUM | 4 days | |
| Aug 21, 1:07 AM CDT | High Surf Advisory | GUM | 4 days | |
| Aug 25, 3:23 PM CDT | Areal Flood Advisory | GUM | 67 min | |
| Aug 25, 3:57 PM CDT | Flash Flood Warning | GUM | 93 min | |
| Aug 28, 2:56 PM CDT | Areal Flood Advisory | GUM | 35 min | |
| Aug 29, 9:34 AM CDT | Areal Flood Advisory | GUM | 2 hr | |
| Aug 29, 1:41 PM CDT | Areal Flood Advisory | GUM | 117 min | |
| Aug 30, 2:33 AM CDT | Flash Flood Warning | GUM | 72 min | |
| Aug 30, 3:47 AM CDT | Areal Flood Advisory | GUM | 45 min | |
| Aug 30, 4:35 AM CDT | Flash Flood Warning | GUM | 74 min | |
| Aug 30, 8:44 PM CDT | Areal Flood Advisory | GUM | 81 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 | 5 |
| Areal Flood Advisory | 10 |
| Wind and dust | |
| Wind Advisory | 1 |
| Coast and beach | |
| High Surf Advisory | 2 |
| Rip Current Statement | 2 |
Nearby
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.