Alert archive / Guam / 2021
Weather alerts in Guam, December 2021
12 weather alerts in December 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
- 12
- Warnings
- 0
- Watches
- 0
- Advisories
- 9
- Busiest day
- December 23, 20213 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 2, 1:02 AM CST | Rip Current Statement | GUM | 16 days | |
| Dec 2, 2:41 PM CST | High Surf Advisory | GUM | 5 days | |
| Dec 4, 1:07 AM CST | Small Craft Advisory | GUM | 3 days | |
| Dec 10, 12:11 AM CST | Small Craft Advisory | GUM | 5 days | |
| Dec 10, 6:12 PM CST | High Surf Advisory | GUM | 53 hr | |
| Dec 15, 1:12 PM CST | Small Craft Advisory | GUM | 37 hr | |
| Dec 23, 12:41 AM CST | Rip Current Statement | GUM | 4 days | |
| Dec 23, 12:41 AM CST | High Surf Advisory | GUM | 35 hr | |
| Dec 23, 6:19 AM CST | Small Craft Advisory | GUM | 38 hr | |
| Dec 27, 2:04 PM CST | Rip Current Statement | GUM | 45 hr | |
| Dec 27, 2:04 PM CST | Small Craft Advisory | GUM | 48 hr | |
| Dec 27, 7:48 PM CST | High Surf Advisory | GUM | 39 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Coast and beach | |
| High Surf Advisory | 4 |
| Rip Current Statement | 3 |
| Marine | |
| Small Craft Advisory | 5 |
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.