Alert archive / Guam / 2021
Weather alerts in Guam, August 2021
29 weather alerts in August 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
- 29
- Warnings
- 3
- Watches
- 2
- Advisories
- 19
- Busiest day
- August 16, 20219 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, 9:37 AM CDT | Areal Flood Advisory | GUM | 3 hr | |
| Aug 1, 2:09 PM CDT | Areal Flood Advisory | GUM | 3 hr | |
| Aug 1, 5:17 PM CDT | Areal Flood Advisory | GUM | 3 hr | |
| Aug 1, 8:27 PM CDT | Areal Flood Advisory | GUM | 5 hr | |
| Aug 2, 1:31 AM CDT | Rip Current Statement | GUM | 42 hr | |
| Aug 2, 1:31 AM CDT | High Surf Advisory | GUM | 42 hr | |
| Aug 3, 6:31 AM CDT | Areal Flood Advisory | GUM | 3 hr | |
| Aug 11, 8:43 PM CDT | Areal Flood Advisory | GUM | 2 hr | |
| Aug 14, 6:58 PM CDT | Tropical Storm Watch | GUM | 34 hr | |
| Aug 16, 1:53 AM CDT | Flash Flood Watch | GUM | 24 hr | |
| Aug 16, 1:59 AM CDT | Small Craft Advisory | GUM | 14 hr | |
| Aug 16, 2:28 AM CDT | Rip Current Statement | GUM | 13 hr | |
| Aug 16, 2:28 AM CDT | High Surf Advisory | GUM | 13 hr | |
| Aug 16, 5:03 AM CDT | Hurricane Local Statement | GUM | 117 min | |
| Aug 16, 5:41 AM CDT | Rip Current Statement | GUM | 10 hr | |
| Aug 16, 5:41 AM CDT | Rip Current Statement | GUM | 10 hr | |
| Aug 16, 11:29 AM CDT | Areal Flood Advisory | GUM | 2 hr | |
| Aug 16, 11:30 AM CDT | Areal Flood Advisory | GUM | 2 hr | |
| Aug 16, 8:17 PM CDT | Small Craft Advisory | GUM | 13 hr | |
| Aug 17, 10:48 PM CDT | Areal Flood Advisory | GUM | 4 hr | |
| Aug 18, 12:21 AM CDT | Flash Flood Warning | GUM | 91 min | |
| Aug 21, 12:20 AM CDT | Special Marine Warning | GUM | 25 min | |
| Aug 21, 11:10 PM CDT | Areal Flood Advisory | GUM | 65 min | |
| Aug 22, 8:27 PM CDT | Areal Flood Advisory | GUM | 2 hr | |
| Aug 23, 7:47 PM CDT | Areal Flood Advisory | GUM | 118 min | |
| Aug 23, 8:29 PM CDT | Areal Flood Advisory | GUM | 2 hr | |
| Aug 23, 9:13 PM CDT | Areal Flood Advisory | GUM | 92 min | |
| Aug 23, 9:40 PM CDT | Flash Flood Warning | GUM | 110 min | |
| Aug 26, 2:48 AM CDT | Areal Flood Advisory | GUM | 3 hr |
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 |
| Flash Flood Watch | 1 |
| Areal Flood Advisory | 15 |
| Tropical | |
| Tropical Storm Watch | 1 |
| Hurricane Local Statement | 1 |
| Coast and beach | |
| High Surf Advisory | 2 |
| Rip Current Statement | 4 |
| Marine | |
| Special Marine Warning | 1 |
| Small Craft Advisory | 2 |
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.