Weather alerts in Guam, 2011
69 weather alerts in 2011, 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
- 69
- Warnings
- 12
- Watches
- 0
- Advisories
- 57
- Busiest month
- January11 alerts
- Busiest day
- July 27, 20115 alerts
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 1, 1:02 AM CST | High Surf Advisory | GUM | 5 days | |
| Jan 1, 1:00 PM CST | Small Craft Advisory for Hazardous Seas | GUM | 5 days | |
| Jan 8, 8:46 PM CST | Areal Flood Advisory | GUM | 3 hr | |
| Jan 9, 1:01 AM CST | High Surf Advisory | GUM | 37 hr | |
| Jan 9, 3:37 AM CST | Areal Flood Advisory | GUM | 10 hr | |
| Jan 16, 2:52 PM CST | High Surf Warning | GUM | 47 hr | |
| Jan 16, 2:52 PM CST | High Surf Advisory | GUM | 4 days | |
| Jan 16, 2:52 PM CST | Small Craft Advisory for Hazardous Seas | GUM | 71 hr | |
| Jan 26, 1:48 PM CST | Small Craft Advisory | GUM | 4 days | |
| Jan 26, 1:48 PM CST | High Surf Advisory | GUM | 3 days | |
| Jan 27, 5:31 PM CST | Wind Advisory | GUM | 32 hr | |
| Feb 13, 2:49 PM CST | High Surf Advisory | GUM | 47 hr | |
| Feb 13, 2:50 PM CST | Small Craft Advisory | GUM | 47 hr | |
| Feb 23, 1:30 AM CST | High Surf Advisory | GUM | 24 hr | |
| Feb 23, 1:21 PM CST | Small Craft Advisory | GUM | 5 days | |
| Feb 23, 1:21 PM CST | High Surf Warning | GUM | 5 days | |
| Feb 24, 1:05 AM CST | High Surf Advisory | GUM | 5 days | |
| Feb 26, 1:02 PM CST | Wind Advisory | GUM | 13 hr | |
| Feb 28, 11:39 PM CST | Small Craft Advisory for Hazardous Seas | GUM | 13 hr | |
| Mar 6, 1:30 PM CST | Small Craft Advisory for Hazardous Seas | GUM | 13 hr | |
| Mar 11, 3:24 AM CST | Tsunami Warning | GUM | 4 hr | |
| Mar 18, 1:57 AM CDT | High Surf Advisory | GUM | 48 hr | |
| Mar 18, 3:00 PM CDT | Small Craft Advisory for Hazardous Seas | GUM | 26 hr | |
| Mar 20, 7:19 PM CDT | High Surf Advisory | GUM | 24 hr | |
| Mar 20, 7:22 PM CDT | Small Craft Advisory for Hazardous Seas | GUM | 20 hr | |
| Mar 31, 5:03 PM CDT | Areal Flood Advisory | GUM | 3 hr | |
| Apr 4, 4:20 PM CDT | Small Craft Advisory for Winds | GUM | 33 hr | |
| Apr 5, 1:19 AM CDT | High Surf Advisory | GUM | 6 days | |
| Apr 7, 1:04 AM CDT | Small Craft Advisory for Hazardous Seas | GUM | 3 days | |
| Apr 29, 2:28 PM CDT | Small Craft Advisory | GUM | 48 hr | |
| May 8, 7:00 PM CDT | Small Craft Advisory | GUM | 7 hr | |
| Jul 1, 11:15 PM CDT | Special Marine Warning | GUM | 90 min | |
| Jul 13, 3:30 PM CDT | Small Craft Advisory | GUM | 3 days | |
| Jul 13, 3:37 PM CDT | High Surf Advisory | GUM | 4 days | |
| Jul 14, 6:56 AM CDT | Areal Flood Advisory | GUM | 4 hr | |
| Jul 27, 8:36 AM CDT | Special Marine Warning | GUM | 114 min | |
| Jul 27, 10:26 AM CDT | Special Marine Warning | GUM | 2 hr | |
| Jul 27, 10:43 AM CDT | Areal Flood Advisory | GUM | 6 hr | |
| Jul 27, 12:30 PM CDT | Special Marine Warning | GUM | 2 hr | |
| Jul 27, 2:57 PM CDT | Small Craft Advisory | GUM | 48 hr | |
| Jul 28, 12:53 AM CDT | High Surf Advisory | GUM | 7 days | |
| Jul 29, 3:05 PM CDT | Small Craft Advisory for Hazardous Seas | GUM | 4 days | |
| Aug 18, 3:41 PM CDT | Special Marine Warning | GUM | 64 min | |
| Aug 22, 3:00 PM CDT | Small Craft Advisory | GUM | 59 hr | |
| Aug 23, 1:35 AM CDT | High Surf Advisory | GUM | 48 hr | |
| Aug 23, 10:28 PM CDT | Special Marine Warning | GUM | 32 min | |
| Aug 26, 7:42 PM CDT | High Surf Advisory | GUM | 6 days | |
| Aug 28, 2:19 AM CDT | Small Craft Advisory for Hazardous Seas | GUM | 5 days | |
| Sep 1, 3:20 PM CDT | Areal Flood Advisory | GUM | 3 hr | |
| Sep 1, 6:59 PM CDT | Areal Flood Advisory | GUM | 3 hr | |
| Sep 2, 1:00 PM CDT | High Surf Advisory | GUM | 49 hr | |
| Sep 21, 3:43 AM CDT | Areal Flood Advisory | GUM | 4 hr | |
| Oct 13, 10:55 PM CDT | Areal Flood Advisory | GUM | 3 hr | |
| Oct 20, 5:08 PM CDT | Areal Flood Advisory | GUM | 3 hr | |
| Nov 2, 7:41 PM CDT | Small Craft Advisory for Winds | GUM | 6 hr | |
| Nov 3, 1:38 AM CDT | Small Craft Advisory | GUM | 63 hr | |
| Nov 3, 3:00 PM CDT | High Surf Advisory | GUM | 3 days | |
| Nov 16, 1:37 PM CST | Small Craft Advisory | GUM | 4 days | |
| Nov 17, 2:39 PM CST | High Surf Advisory | GUM | 3 days | |
| Nov 20, 1:47 AM CST | Small Craft Advisory for Hazardous Seas | GUM | 22 hr | |
| Nov 28, 6:35 AM CST | Special Marine Warning | GUM | 55 min | |
| Nov 28, 7:29 AM CST | Special Marine Warning | GUM | 91 min | |
| Nov 28, 9:37 AM CST | Special Marine Warning | GUM | 83 min | |
| Dec 3, 1:00 AM CST | Small Craft Advisory for Winds | GUM | 17 hr | |
| Dec 3, 1:14 AM CST | Small Craft Advisory for Hazardous Seas | GUM | 17 hr | |
| Dec 4, 12:00 AM CST | Small Craft Advisory | GUM | 3 days | |
| Dec 12, 1:01 AM CST | Small Craft Advisory | GUM | 3 days | |
| Dec 18, 12:30 PM CST | Small Craft Advisory | GUM | 12 hr | |
| Dec 19, 1:05 PM CST | Small Craft Advisory | GUM | 26 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Flooding | |
| Areal Flood Advisory | 10 |
| Wind and dust | |
| Wind Advisory | 2 |
| Coast and beach | |
| High Surf Warning | 2 |
| Tsunami Warning | 1 |
| High Surf Advisory | 17 |
| Marine | |
| Special Marine Warning | 9 |
| Small Craft Advisory | 14 |
| Small Craft Advisory for Hazardous Seas | 11 |
| Small Craft Advisory for Winds | 3 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20102012
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.