Alert archive / Guam / 2021
Weather alerts in Guam, July 2021
18 weather alerts in July 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
- 18
- Warnings
- 4
- Watches
- 2
- Advisories
- 12
- Busiest day
- July 22, 20216 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 |
|---|---|---|---|---|
| Jul 14, 5:13 AM CDT | Areal Flood Advisory | GUM | 3 hr | |
| Jul 14, 8:00 AM CDT | Areal Flood Advisory | GUM | 2 hr | |
| Jul 19, 7:49 PM CDT | Areal Flood Advisory | GUM | 3 hr | |
| Jul 19, 9:54 PM CDT | Areal Flood Advisory | GUM | 3 hr | |
| Jul 19, 11:10 PM CDT | Flash Flood Watch | GUM | 48 hr | |
| Jul 20, 5:50 PM CDT | Flash Flood Warning | GUM | 3 hr | |
| Jul 20, 8:46 PM CDT | Areal Flood Advisory | GUM | 3 hr | |
| Jul 20, 10:09 PM CDT | Special Marine Warning | GUM | 96 min | |
| Jul 21, 11:05 PM CDT | Areal Flood Advisory | GUM | 3 hr | |
| Jul 21, 11:23 PM CDT | Flash Flood Watch | GUM | 16 hr | |
| Jul 21, 11:23 PM CDT | Flash Flood Warning | GUM | 3 hr | |
| Jul 22, 12:22 AM CDT | Areal Flood Advisory | GUM | 113 min | |
| Jul 22, 2:42 AM CDT | Areal Flood Advisory | GUM | 2 hr | |
| Jul 22, 2:20 PM CDT | High Surf Advisory | GUM | 5 days | |
| Jul 23, 2:35 PM CDT | Small Craft Advisory | GUM | 49 hr | |
| Jul 24, 6:13 PM CDT | Areal Flood Advisory | GUM | 107 min | |
| Jul 30, 9:11 PM CDT | Areal Flood Advisory | GUM | 2 hr | |
| Jul 30, 10:15 PM CDT | Flash Flood Warning | GUM | 66 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 | 3 |
| Flash Flood Watch | 2 |
| Areal Flood Advisory | 10 |
| Coast and beach | |
| High Surf Advisory | 1 |
| Marine | |
| Special Marine Warning | 1 |
| Small Craft Advisory | 1 |
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.