Alert archive / Guam / 2020
Weather alerts in Guam, December 2020
14 weather alerts in December 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
- 14
- Warnings
- 0
- Watches
- 2
- Advisories
- 8
- Busiest day
- December 2, 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 |
|---|---|---|---|---|
| Dec 1, 8:46 PM CST | Flash Flood Watch | GUM | 27 hr | |
| Dec 1, 8:46 PM CST | Flash Flood Watch | GUM | 27 hr | |
| Dec 2, 5:51 AM CST | Areal Flood Advisory | GUM | 3 hr | |
| Dec 2, 8:56 AM CST | Areal Flood Advisory | GUM | 5 hr | |
| Dec 2, 4:49 PM CST | Areal Flood Advisory | GUM | 3 hr | |
| Dec 6, 12:03 PM CST | Rip Current Statement | GUM | 4 days | |
| Dec 16, 12:50 PM CST | Rip Current Statement | GUM | 13 days | |
| Dec 17, 12:20 AM CST | Small Craft Advisory | GUM | 8 days | |
| Dec 18, 4:06 PM CST | High Surf Advisory | GUM | 22 hr | |
| Dec 19, 8:59 PM CST | High Surf Advisory | GUM | 17 hr | |
| Dec 22, 4:38 AM CST | High Surf Advisory | GUM | 56 hr | |
| Dec 25, 5:25 PM CST | Beach Hazards Statement | GUM | 51 hr | |
| Dec 26, 12:31 AM CST | Small Craft Advisory | GUM | 49 hr | |
| Dec 29, 7:51 PM CST | Beach Hazards Statement | GUM | 12 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 Watch | 2 |
| Areal Flood Advisory | 3 |
| Coast and beach | |
| High Surf Advisory | 3 |
| Beach Hazards Statement | 2 |
| Rip Current Statement | 2 |
| Marine | |
| Small Craft Advisory | 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.