Alert archive / Guam / 2021
Weather alerts in Guam, September 2021
22 weather alerts in September 2021, 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
- 22
- Warnings
- 3
- Watches
- 3
- Advisories
- 14
- Busiest day
- September 23, 202112 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 |
|---|---|---|---|---|
| Sep 4, 1:07 AM CDT | Small Craft Advisory | GUM | 24 hr | |
| Sep 22, 2:20 AM CDT | Flood Watch | GUM | 38 hr | |
| Sep 22, 2:46 AM CDT | Small Craft Advisory | GUM | 17 hr | |
| Sep 22, 2:55 AM CDT | Flood Watch | GUM | 60 hr | |
| Sep 22, 5:16 AM CDT | Rip Current Statement | GUM | 42 hr | |
| Sep 22, 6:04 PM CDT | Tropical Storm Watch | GUM | 3 hr | |
| Sep 22, 8:46 PM CDT | Tropical Storm Warning | GUM | 21 hr | |
| Sep 22, 10:30 PM CDT | Areal Flood Advisory | GUM | 3 hr | |
| Sep 22, 10:30 PM CDT | Areal Flood Advisory | GUM | 3 hr | |
| Sep 23, 12:36 AM CDT | Areal Flood Advisory | GUM | 3 hr | |
| Sep 23, 1:12 AM CDT | Areal Flood Advisory | GUM | 3 hr | |
| Sep 23, 1:12 AM CDT | Areal Flood Advisory | GUM | 3 hr | |
| Sep 23, 4:16 AM CDT | Areal Flood Advisory | GUM | 5 hr | |
| Sep 23, 4:16 AM CDT | Areal Flood Advisory | GUM | 5 hr | |
| Sep 23, 4:49 AM CDT | Areal Flood Advisory | GUM | 4 hr | |
| Sep 23, 5:18 PM CDT | Small Craft Advisory | GUM | 6 hr | |
| Sep 23, 5:26 PM CDT | High Surf Advisory | GUM | 6 hr | |
| Sep 23, 6:14 PM CDT | Flash Flood Warning | GUM | 2 hr | |
| Sep 23, 8:28 PM CDT | Flash Flood Warning | GUM | 2 hr | |
| Sep 24, 11:43 AM CDT | Areal Flood Advisory | GUM | 2 hr | |
| Sep 28, 1:30 AM CDT | Rip Current Statement | GUM | 6 days | |
| Sep 28, 1:30 AM CDT | High Surf Advisory | GUM | 6 days |
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 | 2 |
| Flood Watch | 2 |
| Areal Flood Advisory | 9 |
| Tropical | |
| Tropical Storm Warning | 1 |
| Tropical Storm Watch | 1 |
| Coast and beach | |
| High Surf Advisory | 2 |
| Rip Current Statement | 2 |
| Marine | |
| Small Craft Advisory | 3 |
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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.