Alert archive / Arizona / Greenlee County
Weather alerts in Greenlee County, Arizona, 2011
80 weather alerts in 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Greenlee County and its neighbors
Each county as a circle sized by its count in 2011. Tap one for its archive.
- Alerts
- 80
- Warnings
- 17
- Watches
- 10
- Advisories
- 44
- Busiest month
- August16 alerts
- Busiest day
- September 15, 20114 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Greenlee County, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 6 | 0 | 100% | 1 | 0% | |
| Flash flood warnings | 5 | 2 | 60% | 2 | 100% | 42 min |
Each office's whole area, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Tucson, AZ: tornado warnings | 1 | 0 | 100% | 0 | ||
| NWS Tucson, AZ: severe thunderstorm warnings | 163 | 24 | 85% | 84 | 75% | 20 min |
| NWS Tucson, AZ: flash flood warnings | 73 | 14 | 81% | 29 | 62% | 42 min |
An office's figures cover every county it serves, including across state lines.
Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.
The alerts
Every alert, in the order issued. Times are local, Mountain Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Feb 1, 2:23 PM MST | Wind Chill Watch | TWC | 13 hr |
| Feb 2, 3:50 AM MST | Wind Chill Warning | TWC | 31 hr |
| Feb 7, 2:05 PM MST | Wind Advisory | TWC | 29 hr |
| Feb 18, 3:17 PM MST | Wind Advisory | TWC | 27 hr |
| Feb 18, 7:41 PM MST | Winter Weather Advisory | TWC | 33 hr |
| Feb 25, 2:01 AM MST | Winter Storm Watch | TWC | 36 hr |
| Feb 25, 2:03 PM MST | Wind Advisory | TWC | 24 hr |
| Feb 26, 2:28 AM MST | Winter Storm Warning | TWC | 32 hr |
| Feb 26, 6:05 PM MST | Mesoscale Discussion | SPC | 6 hr |
| Mar 7, 3:08 AM MST | Wind Advisory | TWC | 17 hr |
| Mar 21, 1:58 AM MST | Wind Advisory | TWC | 17 hr |
| Apr 2, 2:19 PM MST | Wind Advisory | TWC | 29 hr |
| Apr 7, 2:16 PM MST | Wind Advisory | TWC | 30 hr |
| Apr 8, 2:28 AM MST | Winter Storm Watch | TWC | 12 hr |
| Apr 8, 2:44 PM MST | Winter Weather Advisory | TWC | 32 hr |
| Apr 25, 2:05 PM MST | Wind Advisory | TWC | 29 hr |
| Apr 28, 2:28 PM MST | Wind Advisory | TWC | 29 hr |
| May 8, 1:59 PM MST | Wind Advisory | TWC | 30 hr |
| May 10, 2:33 AM MST | Wind Advisory | TWC | 16 hr |
| May 16, 2:09 PM MST | High Wind Watch | TWC | 24 hr |
| May 17, 1:45 PM MST | Wind Advisory | TWC | 29 hr |
| May 28, 1:58 PM MST | Wind Advisory | TWC | 30 hr |
| Jun 18, 1:44 PM MST | Wind Advisory | TWC | 29 hr |
| Jun 21, 11:00 AM MST | Heat Advisory | TWC | 32 hr |
| Jun 21, 11:00 AM MST | Heat Advisory | TWC | 40 hr |
| Jun 26, 10:05 AM MST | Heat Advisory | TWC | 32 hr |
| Jun 26, 11:15 AM MST | Heat Advisory | TWC | 55 hr |
| Jun 29, 1:41 PM MST | Mesoscale Discussion | SPC | 2 hr |
| Jun 29, 4:49 PM MST | Flash Flood Warning | TWC | 86 min |
| Jun 30, 3:00 PM MST | Heat Advisory | TWC | 28 hr |
| Jun 30, 3:00 PM MST | Heat Advisory | TWC | 52 hr |
| Jul 2, 2:00 PM MST | Areal Flood Advisory | TWC | 2 hr |
| Jul 4, 12:57 PM MST | Mesoscale Discussion | SPC | 63 min |
| Jul 5, 1:42 PM MST | Mesoscale Discussion | SPC | 63 min |
| Jul 11, 3:06 AM MST | Flash Flood Watch | TWC | 17 hr |
| Jul 11, 3:02 PM MST | Flash Flood Warning | TWC | 118 min |
| Jul 24, 6:36 AM MST | Flash Flood Watch | TWC | 13 hr |
| Jul 24, 2:10 PM MST | Flash Flood Warning | TWC | 110 min |
| Jul 26, 3:05 AM MST | Flash Flood Watch | TWC | 16 hr |
| Jul 26, 10:50 AM MST | Flash Flood Warning | TWC | 101 min |
| Jul 31, 12:39 PM MST | Areal Flood Advisory | TWC | 3 hr |
| Jul 31, 7:54 PM MST | Areal Flood Advisory | TWC | 81 min |
| Aug 2, 3:27 PM MST | Severe Thunderstorm Warning | TWC | 48 min |
| Aug 2, 4:22 PM MST | Areal Flood Advisory | TWC | 3 hr |
| Aug 3, 10:34 AM MST | Areal Flood Advisory | TWC | 116 min |
| Aug 3, 12:29 PM MST | Areal Flood Advisory | TWC | 2 hr |
| Aug 3, 2:30 PM MST | Areal Flood Advisory | TWC | 101 min |
| Aug 11, 2:29 PM MST | Special Weather Statement | TWC | 31 min |
| Aug 11, 5:43 PM MST | Areal Flood Advisory | TWC | 2 hr |
| Aug 12, 3:30 PM MST | Areal Flood Advisory | TWC | 2 hr |
| Aug 12, 4:40 PM MST | Severe Thunderstorm Warning | TWC | 50 min |
| Aug 12, 5:33 PM MST | Severe Thunderstorm Warning | TWC | 42 min |
| Aug 12, 5:50 PM MST | Areal Flood Advisory | TWC | 115 min |
| Aug 15, 4:54 PM MST | Areal Flood Advisory | TWC | 2 hr |
| Aug 16, 5:39 PM MST | Special Weather Statement | ABQ | 36 min |
| Aug 23, 5:05 PM MST | Severe Thunderstorm Warning | TWC | 25 min |
| Aug 23, 5:25 PM MST | Flash Flood Warning | TWC | 65 min |
| Sep 7, 4:02 PM MST | Mesoscale Discussion | SPC | 118 min |
| Sep 9, 11:35 AM MST | Flash Flood Watch | TWC | 10 hr |
| Sep 13, 7:34 PM MST | Areal Flood Advisory | TWC | 3 hr |
| Sep 15, 12:31 PM MST | Mesoscale Discussion | SPC | 89 min |
| Sep 15, 3:35 PM MST | Special Weather Statement | TWC | 40 min |
| Sep 15, 3:53 PM MST | Severe Thunderstorm Warning | TWC | 37 min |
| Sep 15, 4:14 PM MST | Areal Flood Advisory | TWC | 2 hr |
| Oct 4, 1:03 PM MST | Blowing Dust Advisory | TWC | 6 hr |
| Oct 4, 1:50 PM MST | Severe Thunderstorm Warning | TWC | 40 min |
| Nov 3, 2:24 AM MST | Wind Advisory | TWC | 51 hr |
| Nov 4, 2:44 PM MST | High Wind Warning | TWC | 14 hr |
| Nov 6, 2:33 PM MST | Freeze Watch | TWC | 22 hr |
| Nov 7, 3:02 AM MST | Winter Weather Advisory | TWC | 14 hr |
| Nov 7, 12:53 PM MST | Freeze Warning | TWC | 20 hr |
| Nov 30, 12:56 PM MST | Winter Weather Advisory | TWC | 15 hr |
| Dec 1, 3:32 AM MST | Winter Storm Warning | TWC | 40 hr |
| Dec 1, 5:54 AM MST | Wind Advisory | TWC | 14 hr |
| Dec 3, 6:38 AM MST | Winter Weather Advisory | TWC | 23 hr |
| Dec 4, 4:42 AM MST | Dense Fog Advisory | TWC | 4 hr |
| Dec 11, 3:33 AM MST | Winter Storm Watch | TWC | 24 hr |
| Dec 12, 3:48 AM MST | Winter Storm Warning | TWC | 47 hr |
| Dec 17, 2:19 AM MST | Winter Weather Advisory | TWC | 56 hr |
| Dec 22, 3:01 AM MST | Winter Weather Advisory | TWC | 32 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 6 |
| Mesoscale Discussion | 6 |
| Special Weather Statement | 3 |
| Flooding | |
| Flash Flood Warning | 5 |
| Flash Flood Watch | 4 |
| Areal Flood Advisory | 13 |
| Winter | |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 3 |
| Winter Weather Advisory | 7 |
| Heat | |
| Heat Advisory | 6 |
| Cold | |
| Freeze Warning | 1 |
| Wind Chill Warning | 1 |
| Freeze Watch | 1 |
| Wind Chill Watch | 1 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 1 |
| Blowing Dust Advisory | 1 |
| Wind Advisory | 16 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe 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. Warning verification from the Mesonet's Cow. Rebuilt daily.