Alert archive / Arizona / Graham County
Weather alerts in Graham County, Arizona, 2012
83 weather alerts in 2012, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Graham County and its neighbors
Each county as a circle sized by its count in 2012. Tap one for its archive.
- Alerts
- 83
- Warnings
- 11
- Watches
- 9
- Advisories
- 44
- Busiest month
- July20 alerts
- Busiest day
- September 7, 20124 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Graham County, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 5 | 0 | 100% | 0 | ||
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Tucson, AZ: severe thunderstorm warnings | 111 | 17 | 85% | 45 | 62% | 20 min |
| NWS Tucson, AZ: flash flood warnings | 80 | 20 | 75% | 33 | 82% | 49 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 |
|---|---|---|---|
| Jan 15, 2:20 PM MST | Winter Weather Advisory | TWC | 22 hr |
| Feb 14, 3:05 AM MST | Wind Advisory | TWC | 16 hr |
| Feb 17, 3:21 AM MST | Winter Weather Advisory | TWC | 9 hr |
| Feb 19, 3:24 AM MST | Wind Advisory | TWC | 15 hr |
| Feb 26, 2:08 AM MST | Wind Advisory | TWC | 51 hr |
| Mar 5, 2:00 PM MST | Blowing Dust Advisory | TWC | 31 hr |
| Mar 5, 2:00 PM MST | Wind Advisory | TWC | 31 hr |
| Mar 6, 2:56 PM MST | Wind Advisory | TWC | 27 hr |
| Mar 16, 2:31 AM MST | Winter Storm Watch | TWC | 32 hr |
| Mar 16, 2:12 PM MST | Wind Advisory | TWC | 29 hr |
| Mar 16, 2:12 PM MST | Wind Advisory | TWC | 51 hr |
| Mar 17, 5:04 AM MST | Blowing Dust Advisory | TWC | 14 hr |
| Mar 17, 10:27 AM MST | Winter Storm Warning | TWC | 57 hr |
| Mar 18, 6:37 AM MST | High Wind Warning | TWC | 7 hr |
| Apr 12, 1:19 PM MST | Wind Advisory | TWC | 50 hr |
| Apr 12, 1:19 PM MST | Wind Advisory | TWC | 30 hr |
| Apr 26, 12:40 PM MST | Wind Advisory | TWC | 6 hr |
| May 8, 7:17 PM MST | Special Weather Statement | TWC | 43 min |
| May 9, 9:56 AM MST | Mesoscale Discussion | SPC | 2 hr |
| May 22, 2:43 AM MST | Wind Advisory | TWC | 41 hr |
| May 23, 2:02 PM MST | Wind Advisory | TWC | 54 hr |
| May 24, 3:02 AM MST | Wind Advisory | TWC | 17 hr |
| May 26, 2:28 AM MST | Wind Advisory | TWC | 18 hr |
| May 31, 2:20 AM MST | Heat Advisory | TWC | 41 hr |
| Jun 27, 3:19 PM MST | Mesoscale Discussion | SPC | 86 min |
| Jul 3, 4:18 PM MST | Special Weather Statement | TWC | 42 min |
| Jul 4, 12:00 AM MST | Flash Flood Watch | TWC | 17 hr |
| Jul 4, 2:55 PM MST | Areal Flood Advisory | TWC | 3 hr |
| Jul 4, 4:11 PM MST | Areal Flood Advisory | TWC | 3 hr |
| Jul 12, 11:35 AM MST | Mesoscale Discussion | SPC | 85 min |
| Jul 13, 1:26 PM MST | Areal Flood Advisory | TWC | 3 hr |
| Jul 14, 1:04 PM MST | Areal Flood Advisory | TWC | 4 hr |
| Jul 15, 2:54 PM MST | Mesoscale Discussion | SPC | 66 min |
| Jul 15, 4:38 PM MST | Areal Flood Advisory | TWC | 3 hr |
| Jul 15, 6:13 PM MST | Severe Thunderstorm Warning | TWC | 32 min |
| Jul 15, 7:11 PM MST | Areal Flood Advisory | TWC | 3 hr |
| Jul 21, 2:26 PM MST | Areal Flood Advisory | TWC | 2 hr |
| Jul 21, 3:36 PM MST | Severe Thunderstorm Warning | TWC | 39 min |
| Jul 27, 4:45 PM MST | Special Weather Statement | TWC | 45 min |
| Jul 28, 1:45 PM MST | Areal Flood Advisory | TWC | 3 hr |
| Jul 28, 2:35 PM MST | Special Weather Statement | TWC | 40 min |
| Jul 29, 9:56 AM MST | Flash Flood Watch | TWC | 10 hr |
| Jul 29, 12:44 PM MST | Special Weather Statement | TWC | 31 min |
| Jul 30, 9:14 PM MST | Special Weather Statement | TWC | 46 min |
| Jul 30, 9:40 PM MST | Severe Thunderstorm Warning | TWC | 38 min |
| Aug 8, 3:35 PM MST | Special Weather Statement | TWC | 25 min |
| Aug 15, 4:21 PM MST | Mesoscale Discussion | SPC | 2 hr |
| Aug 15, 4:22 PM MST | Special Weather Statement | TWC | 53 min |
| Aug 16, 10:01 PM MST | Areal Flood Advisory | TWC | 119 min |
| Aug 17, 10:28 AM MST | Flash Flood Watch | TWC | 6 hr |
| Aug 18, 7:18 PM MST | Areal Flood Advisory | TWC | 117 min |
| Aug 18, 9:22 PM MST | Areal Flood Advisory | TWC | 113 min |
| Aug 19, 6:19 PM MST | Areal Flood Advisory | TWC | 86 min |
| Aug 19, 6:37 PM MST | Severe Thunderstorm Warning | TWC | 23 min |
| Aug 21, 12:17 PM MST | Severe Thunderstorm Warning | TWC | 28 min |
| Aug 22, 9:35 AM MST | Areal Flood Advisory | TWC | 3 hr |
| Aug 25, 2:20 PM MST | Special Weather Statement | TWC | 70 min |
| Aug 25, 9:15 PM MST | Areal Flood Advisory | TWC | 90 min |
| Aug 26, 5:34 PM MST | Areal Flood Advisory | TWC | 86 min |
| Aug 26, 7:01 PM MST | Areal Flood Advisory | TWC | 89 min |
| Sep 3, 6:39 PM MST | Special Weather Statement | TWC | 51 min |
| Sep 4, 4:09 PM MST | Special Weather Statement | TWC | 51 min |
| Sep 5, 2:52 PM MST | Areal Flood Advisory | TWC | 113 min |
| Sep 6, 8:48 PM MST | Flash Flood Warning | TWC | 117 min |
| Sep 6, 9:14 PM MST | Special Weather Statement | TWC | 46 min |
| Sep 7, 5:47 AM MST | Flash Flood Watch | TWC | 12 hr |
| Sep 7, 4:52 PM MST | Special Weather Statement | TWC | 23 min |
| Sep 7, 5:24 PM MST | Areal Flood Advisory | TWC | 81 min |
| Sep 10, 3:40 PM MST | Areal Flood Advisory | TWC | 80 min |
| Sep 10, 4:56 PM MST | Areal Flood Advisory | TWC | 112 min |
| Sep 11, 2:17 AM MST | Flash Flood Watch | TWC | 13 hr |
| Oct 12, 2:34 AM MST | Special Weather Statement | TWC | 41 min |
| Nov 8, 2:39 PM MST | Wind Advisory | TWC | 29 hr |
| Nov 9, 2:39 PM MST | Hard Freeze Watch | TWC | 23 hr |
| Nov 9, 8:54 PM MST | Freeze Warning | TWC | 35 hr |
| Nov 10, 1:51 PM MST | Hard Freeze Warning | TWC | 43 hr |
| Dec 11, 1:35 PM MST | Winter Storm Watch | TWC | 38 hr |
| Dec 12, 9:45 PM MST | Wind Advisory | TWC | 38 hr |
| Dec 13, 3:13 AM MST | Winter Storm Warning | TWC | 38 hr |
| Dec 14, 2:54 PM MST | Winter Weather Advisory | TWC | 39 hr |
| Dec 17, 3:52 AM MST | Winter Storm Watch | TWC | 11 hr |
| Dec 17, 2:40 PM MST | Winter Weather Advisory | TWC | 41 hr |
| Dec 30, 3:09 AM MST | Winter Weather Advisory | TWC | 30 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 | 5 |
| Mesoscale Discussion | 5 |
| Special Weather Statement | 14 |
| Flooding | |
| Flash Flood Warning | 1 |
| Flash Flood Watch | 5 |
| Areal Flood Advisory | 20 |
| Winter | |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 3 |
| Winter Weather Advisory | 5 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 1 |
| Hard Freeze Warning | 1 |
| Hard Freeze Watch | 1 |
| Wind and dust | |
| High Wind Warning | 1 |
| Blowing Dust Advisory | 2 |
| Wind Advisory | 16 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20112013
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.