Alert archive / Guam / High Surf Advisories
High Surf Advisories in Guam, 2026
19 high surf advisories in 2026. 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
- 19
- Busiest month
- January4 high surf advisories
- Busiest day
- March 16, 20262 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 3, 11:54 PM CST | High Surf Advisory | GUM | 4 days | |
| Jan 9, 11:21 PM CST | High Surf Advisory | GUM | 48 hr | |
| Jan 23, 12:14 AM CST | High Surf Advisory | GUM | 5 days | |
| Jan 30, 12:20 AM CST | High Surf Advisory | GUM | 3 days | |
| Feb 9, 12:01 AM CST | High Surf Advisory | GUM | 4 days | |
| Feb 21, 12:11 PM CST | High Surf Advisory | GUM | 3 days | |
| Feb 25, 11:39 PM CST | High Surf Advisory | GUM | 4 days | |
| Mar 3, 6:52 PM CST | High Surf Advisory | GUM | 6 days | |
| Mar 12, 1:06 AM CDT | High Surf Advisory | GUM | 3 days | |
| Mar 16, 12:45 AM CDT | High Surf Advisory | GUM | 13 hr | |
| Mar 16, 1:19 PM CDT | High Surf Advisory | GUM | 5 days | |
| Apr 10, 1:37 AM CDT | High Surf Advisory | GUM | 49 hr | |
| Apr 15, 10:24 PM CDT | High Surf Advisory | GUM | 4 days | |
| May 6, 10:59 AM CDT | High Surf Advisory | GUM | 37 hr | |
| Jul 4, 3:40 AM CDT | High Surf Advisory | GUM | 15 hr | |
| Jul 8, 12:55 AM CDT | High Surf Advisory | GUM | 4 days | |
| Aug 2, 12:29 AM CDT | High Surf Advisory | GUM | 12 days | |
| Aug 21, 1:07 AM CDT | High Surf Advisory | GUM | 4 days | |
| Sep 2, 3:04 AM CDT | High Surf Advisory | GUM | 58 hr |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
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. Warning verification from the Mesonet's Cow. Rebuilt daily.