Alert archive / Guam / High Surf Advisories
High Surf Advisories in Guam, 2021
23 high surf advisories in 2021. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of high surf advisories reaches back to 2005.
- High Surf Advisories
- 23
- Busiest month
- April4 high surf advisories
- Busiest day
- January 26, 20211 high surf advisories
Over time
By month
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 |
|---|---|---|---|---|
| Jan 26, 11:23 AM CST | High Surf Advisory | GUM | 3 days | |
| Jan 30, 12:00 PM CST | High Surf Advisory | GUM | 5 days | |
| Feb 19, 1:41 PM CST | High Surf Advisory | GUM | 35 hr | |
| Feb 28, 2:44 PM CST | High Surf Advisory | GUM | 47 hr | |
| Mar 5, 5:00 AM CST | High Surf Advisory | GUM | 30 hr | |
| Apr 5, 3:59 AM CDT | High Surf Advisory | GUM | 23 hr | |
| Apr 16, 7:36 PM CDT | High Surf Advisory | GUM | 6 days | |
| Apr 24, 2:09 AM CDT | High Surf Advisory | GUM | 4 days | |
| Apr 28, 2:59 AM CDT | High Surf Advisory | GUM | 60 hr | |
| Jun 21, 12:55 AM CDT | High Surf Advisory | GUM | 25 hr | |
| Jul 22, 2:20 PM CDT | High Surf Advisory | GUM | 5 days | |
| Aug 2, 1:31 AM CDT | High Surf Advisory | GUM | 42 hr | |
| Aug 16, 2:28 AM CDT | High Surf Advisory | GUM | 13 hr | |
| Sep 23, 5:26 PM CDT | High Surf Advisory | GUM | 6 hr | |
| Sep 28, 1:30 AM CDT | High Surf Advisory | GUM | 6 days | |
| Oct 10, 1:53 AM CDT | High Surf Advisory | GUM | 37 hr | |
| Oct 12, 12:16 AM CDT | High Surf Advisory | GUM | 25 hr | |
| Oct 30, 10:53 PM CDT | High Surf Advisory | GUM | 40 hr | |
| Nov 27, 1:45 AM CST | High Surf Advisory | GUM | 70 hr | |
| Dec 2, 2:41 PM CST | High Surf Advisory | GUM | 5 days | |
| Dec 10, 6:12 PM CST | High Surf Advisory | GUM | 53 hr | |
| Dec 23, 12:41 AM CST | High Surf Advisory | GUM | 35 hr | |
| Dec 27, 7:48 PM CST | High Surf Advisory | GUM | 39 hr |
The busiest days
Days with the most alerts issued, by UTC date.
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.