Weather alerts in Guam, 2016
110 weather alerts in 2016, 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
- 110
- Warnings
- 22
- Watches
- 17
- Advisories
- 71
- Busiest month
- August28 alerts
- Busiest day
- August 3, 20166 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 3, 6:09 AM CST | Small Craft Advisory | GUM | 18 hr | |
| Jan 20, 8:41 PM CST | High Surf Advisory | GUM | 40 hr | |
| Jan 21, 11:17 AM CST | Small Craft Advisory for Hazardous Seas | GUM | 25 hr | |
| Jan 24, 11:51 PM CST | High Surf Advisory | GUM | 7 days | |
| Jan 26, 12:47 AM CST | Small Craft Advisory | GUM | 5 days | |
| Jan 27, 6:06 PM CST | Fire Weather Watch | GUM | 4 days | |
| Feb 5, 9:54 PM CST | Small Craft Advisory | GUM | 4 hr | |
| Feb 9, 7:30 PM CST | Fire Weather Watch | GUM | 3 days | |
| Feb 11, 12:52 AM CST | Small Craft Advisory | GUM | 5 days | |
| Feb 12, 12:36 AM CST | High Surf Advisory | GUM | 3 days | |
| Feb 19, 7:05 PM CST | Small Craft Advisory | GUM | 5 days | |
| Feb 19, 11:27 PM CST | High Surf Advisory | GUM | 5 days | |
| Feb 27, 5:42 PM CST | Small Craft Advisory | GUM | 30 hr | |
| Mar 6, 2:00 PM CST | Small Craft Advisory | GUM | 34 hr | |
| Mar 30, 11:34 PM CDT | Fire Weather Watch | GUM | 4 days | |
| Apr 3, 8:03 PM CDT | Red Flag Warning | GUM | 7 hr | |
| Apr 3, 9:03 PM CDT | Fire Weather Watch | GUM | 4 days | |
| Apr 5, 12:28 PM CDT | Small Craft Advisory for Hazardous Seas | GUM | 26 hr | |
| Apr 7, 2:05 PM CDT | High Surf Advisory | GUM | 24 hr | |
| Apr 7, 2:06 PM CDT | Small Craft Advisory | GUM | 35 hr | |
| Apr 16, 8:08 PM CDT | Fire Weather Watch | GUM | 25 hr | |
| Apr 17, 7:40 PM CDT | Red Flag Warning | GUM | 7 hr | |
| Apr 17, 8:40 PM CDT | Fire Weather Watch | GUM | 24 hr | |
| Apr 18, 7:24 PM CDT | Red Flag Warning | GUM | 8 hr | |
| Apr 18, 8:24 PM CDT | Fire Weather Watch | GUM | 24 hr | |
| Apr 19, 12:00 AM CDT | Small Craft Advisory | GUM | 38 hr | |
| Apr 19, 7:35 PM CDT | Red Flag Warning | GUM | 7 hr | |
| Apr 19, 8:35 PM CDT | Fire Weather Watch | GUM | 25 hr | |
| Apr 20, 8:27 PM CDT | Red Flag Warning | GUM | 7 hr | |
| Apr 20, 9:27 PM CDT | Fire Weather Watch | GUM | 24 hr | |
| Apr 21, 8:04 PM CDT | Red Flag Warning | GUM | 7 hr | |
| Apr 21, 9:04 PM CDT | Fire Weather Watch | GUM | 48 hr | |
| May 6, 9:14 PM CDT | Fire Weather Watch | GUM | 24 hr | |
| May 7, 8:28 PM CDT | Red Flag Warning | GUM | 7 hr | |
| May 7, 9:28 PM CDT | Fire Weather Watch | GUM | 22 hr | |
| May 8, 7:00 PM CDT | Red Flag Warning | GUM | 8 hr | |
| May 8, 7:48 PM CDT | Fire Weather Watch | GUM | 31 hr | |
| May 11, 8:45 PM CDT | Fire Weather Watch | GUM | 24 hr | |
| May 12, 8:01 PM CDT | Red Flag Warning | GUM | 7 hr | |
| Jun 21, 3:49 AM CDT | Areal Flood Advisory | GUM | 2 hr | |
| Jun 21, 3:52 AM CDT | Areal Flood Advisory | GUM | 2 hr | |
| Jun 21, 4:09 AM CDT | Areal Flood Advisory | GUM | 3 hr | |
| Jun 21, 4:34 AM CDT | Areal Flood Advisory | GUM | 2 hr | |
| Jul 3, 2:47 AM CDT | Small Craft Advisory | GUM | 23 hr | |
| Aug 3, 7:31 AM CDT | Areal Flood Advisory | GUM | 2 hr | |
| Aug 3, 7:32 AM CDT | Areal Flood Advisory | GUM | 2 hr | |
| Aug 3, 8:08 AM CDT | Areal Flood Advisory | GUM | 97 min | |
| Aug 3, 12:27 PM CDT | Small Craft Advisory | GUM | 62 hr | |
| Aug 3, 4:13 PM CDT | Areal Flood Advisory | GUM | 3 hr | |
| Aug 3, 4:17 PM CDT | Areal Flood Advisory | GUM | 4 hr | |
| Aug 3, 11:18 PM CDT | Areal Flood Advisory | GUM | 3 hr | |
| Aug 4, 12:30 AM CDT | High Surf Advisory | GUM | 45 hr | |
| Aug 4, 1:53 AM CDT | Wind Advisory | GUM | 25 hr | |
| Aug 4, 5:07 PM CDT | Small Craft Advisory | GUM | 33 hr | |
| Aug 4, 7:47 PM CDT | Areal Flood Advisory | GUM | 3 hr | |
| Aug 4, 7:57 PM CDT | Areal Flood Advisory | GUM | 3 hr | |
| Aug 4, 10:37 PM CDT | Areal Flood Advisory | GUM | 3 hr | |
| Aug 4, 11:04 PM CDT | Areal Flood Advisory | GUM | 2 hr | |
| Aug 12, 1:32 AM CDT | Small Craft Advisory | GUM | 8 days | |
| Aug 12, 1:32 AM CDT | High Surf Advisory | GUM | 9 days | |
| Aug 16, 9:36 AM CDT | Areal Flood Advisory | GUM | 3 hr | |
| Aug 16, 9:47 AM CDT | Areal Flood Advisory | GUM | 3 hr | |
| Aug 18, 12:58 AM CDT | Flash Flood Watch | GUM | 13 hr | |
| Aug 22, 1:11 PM CDT | Areal Flood Advisory | GUM | 10 hr | |
| Aug 22, 3:00 PM CDT | Small Craft Advisory | GUM | 15 hr | |
| Aug 23, 5:27 AM CDT | Gale Warning | GUM | 10 hr | |
| Aug 23, 5:37 AM CDT | Wind Advisory | GUM | 10 hr | |
| Aug 23, 6:27 AM CDT | Small Craft Advisory | GUM | 16 hr | |
| Aug 23, 8:00 AM CDT | High Surf Advisory | GUM | 13 hr | |
| Aug 23, 9:05 PM CDT | High Surf Advisory | GUM | 6 hr | |
| Aug 27, 2:28 PM CDT | High Surf Advisory | GUM | 65 hr | |
| Aug 30, 10:25 PM CDT | Areal Flood Advisory | GUM | 2 hr | |
| Sep 1, 8:38 PM CDT | Areal Flood Advisory | GUM | 112 min | |
| Sep 11, 2:46 PM CDT | Small Craft Advisory | GUM | 11 hr | |
| Sep 11, 2:46 PM CDT | Small Craft Advisory | GUM | 13 hr | |
| Sep 11, 3:51 PM CDT | High Surf Advisory | GUM | 11 hr | |
| Sep 14, 1:55 PM CDT | Areal Flood Advisory | GUM | 3 hr | |
| Sep 22, 2:04 AM CDT | Small Craft Advisory | GUM | 23 hr | |
| Sep 27, 3:04 PM CDT | Small Craft Advisory | GUM | 26 hr | |
| Sep 27, 3:04 PM CDT | High Surf Advisory | GUM | 26 hr | |
| Sep 27, 10:42 PM CDT | Flood Watch | GUM | 21 hr | |
| Oct 18, 2:10 PM CDT | High Surf Advisory | GUM | 11 hr | |
| Oct 29, 3:00 PM CDT | Small Craft Advisory | GUM | 47 hr | |
| Oct 30, 12:47 PM CDT | High Surf Advisory | GUM | 25 hr | |
| Nov 2, 3:11 AM CDT | Small Craft Advisory | GUM | 5 days | |
| Nov 2, 2:02 PM CDT | High Surf Advisory | GUM | 5 days | |
| Nov 2, 5:17 PM CDT | Special Marine Warning | GUM | 103 min | |
| Nov 2, 7:16 PM CDT | Special Marine Warning | GUM | 119 min | |
| Nov 2, 9:35 PM CDT | Special Marine Warning | GUM | 115 min | |
| Nov 2, 11:47 PM CDT | Special Marine Warning | GUM | 118 min | |
| Nov 3, 2:53 AM CDT | Special Marine Warning | GUM | 112 min | |
| Nov 3, 9:01 AM CDT | Special Marine Warning | GUM | 119 min | |
| Nov 3, 8:44 PM CDT | Special Marine Warning | GUM | 46 min | |
| Nov 4, 4:58 AM CDT | Special Marine Warning | GUM | 3 hr | |
| Nov 4, 7:06 AM CDT | Special Marine Warning | GUM | 114 min | |
| Nov 8, 1:06 AM CST | High Surf Advisory | GUM | 65 hr | |
| Nov 8, 1:41 PM CST | Small Craft Advisory | GUM | 12 hr | |
| Nov 12, 2:42 AM CST | Areal Flood Advisory | GUM | 3 hr | |
| Nov 21, 12:32 PM CST | Small Craft Advisory | GUM | 13 hr | |
| Nov 29, 6:06 PM CST | Small Craft Advisory | GUM | 5 days | |
| Nov 30, 2:43 PM CST | High Surf Advisory | GUM | 4 days | |
| Dec 11, 7:00 PM CST | Areal Flood Advisory | GUM | 3 hr | |
| Dec 11, 9:07 PM CST | Special Marine Warning | GUM | 83 min | |
| Dec 11, 11:09 PM CST | Special Marine Warning | GUM | 51 min | |
| Dec 12, 12:08 AM CST | Special Marine Warning | GUM | 112 min | |
| Dec 13, 12:00 PM CST | Small Craft Advisory | GUM | 14 hr | |
| Dec 17, 5:01 AM CST | Tsunami Watch | HEB | 91 min | |
| Dec 17, 2:00 PM CST | Small Craft Advisory | GUM | 6 days | |
| Dec 18, 1:10 AM CST | High Surf Advisory | GUM | 6 days | |
| Dec 31, 2:46 PM CST | Small Craft Advisory | GUM | 10 hr |
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 | 1 |
| Flood Watch | 1 |
| Areal Flood Advisory | 22 |
| Wind and dust | |
| Wind Advisory | 2 |
| Fire | |
| Red Flag Warning | 9 |
| Fire Weather Watch | 14 |
| Coast and beach | |
| Tsunami Watch | 1 |
| High Surf Advisory | 18 |
| Marine | |
| Gale Warning | 1 |
| Special Marine Warning | 12 |
| Small Craft Advisory | 27 |
| Small Craft Advisory for Hazardous Seas | 2 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20152017
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.