Alert archive / Arizona / Graham County
Weather alerts in Graham County, Arizona, 2010
66 weather alerts in 2010, 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 2010. Tap one for its archive.
- Alerts
- 66
- Warnings
- 20
- Watches
- 3
- Advisories
- 25
- Busiest month
- July29 alerts
- Busiest day
- July 17, 20104 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, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 11 | 1 | 91% | 0 | ||
| Flash flood warnings | 4 | 3 | 25% | 3 | 100% | 14897 min |
Each office's whole area, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Tucson, AZ: severe thunderstorm warnings | 97 | 28 | 71% | 64 | 75% | 23 min |
| NWS Tucson, AZ: flash flood warnings | 65 | 27 | 58% | 49 | 84% | 1134 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 22, 12:04 AM MST | Areal Flood Advisory | TWC | 3 hr |
| Jan 22, 4:18 AM MST | Areal Flood Warning | TWC | 8 hr |
| Jun 30, 5:01 PM MST | Flash Flood Warning | TWC | 31 days |
| Jul 2, 2:52 PM MST | Special Weather Statement | TWC | 23 min |
| Jul 2, 3:17 PM MST | Special Weather Statement | TWC | 58 min |
| Jul 7, 3:57 PM MST | Special Weather Statement | TWC | 48 min |
| Jul 7, 4:32 PM MST | Special Weather Statement | TWC | 43 min |
| Jul 15, 6:51 PM MST | Special Weather Statement | TWC | 39 min |
| Jul 17, 2:05 PM MST | Special Weather Statement | TWC | 40 min |
| Jul 17, 2:33 PM MST | Severe Thunderstorm Warning | TWC | 42 min |
| Jul 17, 3:45 PM MST | Severe Thunderstorm Warning | TWC | 60 min |
| Jul 17, 4:08 PM MST | Mesoscale Discussion | SPC | 97 min |
| Jul 17, 6:30 PM MST | Severe Thunderstorm Warning | TWC | 30 min |
| Jul 17, 7:00 PM MST | Severe Thunderstorm Warning | TWC | 30 min |
| Jul 18, 3:33 PM MST | Severe Thunderstorm Warning | TWC | 27 min |
| Jul 18, 3:57 PM MST | Severe Thunderstorm Warning | TWC | 63 min |
| Jul 19, 4:22 PM MST | Severe Thunderstorm Warning | TWC | 53 min |
| Jul 21, 12:48 PM MST | Areal Flood Advisory | TWC | 3 hr |
| Jul 21, 7:44 PM MST | Flash Flood Warning | TWC | 2 hr |
| Jul 21, 9:38 PM MST | Areal Flood Advisory | TWC | 117 min |
| Jul 23, 4:50 PM MST | Areal Flood Advisory | TWC | 3 hr |
| Jul 24, 3:26 PM MST | Areal Flood Advisory | TWC | 3 hr |
| Jul 25, 11:23 AM MST | Flash Flood Warning | TWC | 112 min |
| Jul 25, 12:25 PM MST | Areal Flood Advisory | TWC | 3 hr |
| Jul 25, 1:25 PM MST | Special Weather Statement | TWC | 50 min |
| Jul 26, 3:42 PM MST | Special Weather Statement | TWC | 48 min |
| Jul 28, 1:56 PM MST | Areal Flood Advisory | TWC | 109 min |
| Jul 28, 7:17 PM MST | Areal Flood Advisory | TWC | 4 hr |
| Jul 28, 11:07 PM MST | Areal Flood Advisory | TWC | 113 min |
| Jul 29, 5:13 PM MST | Areal Flood Advisory | TWC | 74 min |
| Jul 29, 9:05 PM MST | Areal Flood Advisory | TWC | 3 hr |
| Aug 5, 5:49 PM MST | Severe Thunderstorm Warning | TWC | 26 min |
| Aug 6, 5:03 PM MST | Areal Flood Advisory | TWC | 117 min |
| Aug 6, 5:16 PM MST | Special Weather Statement | TWC | 59 min |
| Aug 15, 7:13 PM MST | Areal Flood Advisory | TWC | 2 hr |
| Aug 17, 3:57 PM MST | Severe Thunderstorm Warning | TWC | 63 min |
| Aug 17, 4:58 PM MST | Areal Flood Advisory | TWC | 3 hr |
| Aug 17, 5:00 PM MST | Severe Thunderstorm Warning | TWC | 30 min |
| Aug 21, 9:46 PM MST | Areal Flood Advisory | TWC | 74 min |
| Aug 24, 12:22 PM MST | Mesoscale Discussion | SPC | 83 min |
| Aug 24, 4:52 PM MST | Severe Thunderstorm Warning | TWC | 41 min |
| Aug 24, 6:07 PM MST | Flash Flood Warning | TWC | 113 min |
| Aug 24, 6:12 PM MST | Areal Flood Advisory | TWC | 3 hr |
| Aug 24, 9:02 PM MST | Areal Flood Advisory | TWC | 3 hr |
| Aug 27, 5:45 PM MST | Special Weather Statement | TWC | 45 min |
| Aug 29, 11:41 AM MST | Mesoscale Discussion | SPC | 94 min |
| Aug 29, 11:44 AM MST | Mesoscale Discussion | SPC | 91 min |
| Aug 29, 12:48 PM MST | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 29, 3:43 PM MST | Mesoscale Discussion | SPC | 92 min |
| Aug 29, 7:52 PM MST | Special Weather Statement | TWC | 38 min |
| Sep 22, 3:46 PM MST | Areal Flood Advisory | TWC | 3 hr |
| Oct 6, 11:12 AM MST | Mesoscale Discussion | SPC | 63 min |
| Nov 9, 1:20 PM MST | Freeze Warning | TWC | 20 hr |
| Nov 24, 10:49 AM MST | Hard Freeze Watch | TWC | 16 hr |
| Nov 25, 3:00 AM MST | Hard Freeze Warning | TWC | 30 hr |
| Nov 28, 3:01 AM MST | Wind Advisory | TWC | 15 hr |
| Nov 28, 4:41 PM MST | Winter Weather Advisory | TWC | 6 hr |
| Dec 15, 1:24 PM MST | Winter Weather Advisory | TWC | 35 hr |
| Dec 17, 4:10 AM MST | Dense Fog Advisory | TWC | 6 hr |
| Dec 21, 12:32 PM MST | Winter Weather Advisory | TWC | 47 hr |
| Dec 28, 4:00 AM MST | Winter Storm Watch | TWC | 30 hr |
| Dec 28, 2:11 PM MST | Blizzard Warning | TWC | 55 hr |
| Dec 28, 2:15 PM MST | Wind Advisory | TWC | 24 hr |
| Dec 29, 9:53 AM MST | Winter Storm Warning | TWC | 35 hr |
| Dec 30, 1:38 AM MST | Mesoscale Discussion | SPC | 4 hr |
| Dec 30, 7:37 AM MST | Wind Advisory | TWC | 5 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 | 11 |
| Severe Thunderstorm Watch | 1 |
| Mesoscale Discussion | 7 |
| Special Weather Statement | 11 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 4 |
| Areal Flood Advisory | 18 |
| Winter | |
| Blizzard Warning | 1 |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 3 |
| Cold | |
| Freeze Warning | 1 |
| Hard Freeze Warning | 1 |
| Hard Freeze Watch | 1 |
| Wind and dust | |
| Wind Advisory | 3 |
| 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 archive20092011
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.