Alert archive / Guam / 2020
Weather alerts in Guam, September 2020
17 weather alerts in September 2020, 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
- 17
- Warnings
- 5
- Watches
- 0
- Advisories
- 10
- Busiest day
- September 1, 20205 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, 8:35 PM CDT | Areal Flood Advisory | GUM | 115 min | |
| Aug 31, 9:08 PM CDT | Flash Flood Warning | GUM | 3 hr | |
| Aug 31, 9:08 PM CDT | Flash Flood Warning | GUM | 3 hr | |
| Aug 31, 9:55 PM CDT | Rip Current Statement | GUM | 50 hr | |
| Aug 31, 9:55 PM CDT | High Surf Advisory | GUM | 50 hr | |
| Sep 4, 12:58 PM CDT | Rip Current Statement | GUM | 36 hr | |
| Sep 4, 12:58 PM CDT | High Surf Advisory | GUM | 36 hr | |
| Sep 12, 10:50 PM CDT | Special Marine Warning | GUM | 115 min | |
| Sep 13, 5:05 AM CDT | Special Marine Warning | GUM | 85 min | |
| Sep 13, 5:29 AM CDT | Severe Thunderstorm Warning | GUM | 61 min | |
| Sep 13, 11:53 PM CDT | Areal Flood Advisory | GUM | 3 hr | |
| Sep 15, 5:16 PM CDT | Areal Flood Advisory | GUM | 3 hr | |
| Sep 16, 1:16 PM CDT | Areal Flood Advisory | GUM | 3 hr | |
| Sep 16, 2:47 PM CDT | Areal Flood Advisory | GUM | 3 hr | |
| Sep 16, 5:15 PM CDT | Areal Flood Advisory | GUM | 3 hr | |
| Sep 20, 6:46 PM CDT | Areal Flood Advisory | GUM | 3 hr | |
| Sep 20, 9:12 PM CDT | Areal Flood Advisory | GUM | 2 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 1 |
| Flooding | |
| Flash Flood Warning | 2 |
| Areal Flood Advisory | 8 |
| Coast and beach | |
| High Surf Advisory | 2 |
| Rip Current Statement | 2 |
| Marine | |
| Special Marine Warning | 2 |
Nearby
Alerts in force nowTornadoes on recordThe radar archive20192021
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.