Alert archive / Arizona / La Paz County
Weather alerts in La Paz County, Arizona, 2017
110 weather alerts in 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
La Paz County and its neighbors
Each county as a circle sized by its count in 2017. Tap one for its archive.
- Alerts
- 110
- Warnings
- 44
- Watches
- 10
- Advisories
- 29
- Busiest month
- September31 alerts
- Busiest day
- September 9, 201716 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
La Paz County, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 14 | 6 | 57% | 6 | 83% | 21 min |
| Flash flood warnings | 14 | 6 | 57% | 6 | 100% | 75 min |
Each office's whole area, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Phoenix, AZ: tornado warnings | 0 | 1 | 0% | |||
| NWS Phoenix, AZ: severe thunderstorm warnings | 79 | 28 | 65% | 92 | 49% | 17 min |
| NWS Phoenix, AZ: flash flood warnings | 75 | 37 | 51% | 72 | 81% | 86 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 1, 4:52 AM MST | Areal Flood Advisory | PSR | 3 hr |
| Feb 28, 9:01 AM MST | Areal Flood Advisory | PSR | 4 hr |
| Mar 27, 4:30 AM MST | Fire Weather Watch | PSR | 8 hr |
| Mar 27, 12:52 PM MST | Red Flag Warning | PSR | 30 hr |
| Mar 30, 2:56 AM MST | Red Flag Warning | PSR | 17 hr |
| Apr 24, 1:59 PM MST | Red Flag Warning | PSR | 31 hr |
| Apr 26, 2:12 PM MST | Fire Weather Watch | PSR | 13 hr |
| Apr 27, 3:40 AM MST | Red Flag Warning | PSR | 41 hr |
| Apr 27, 1:42 PM MST | Wind Advisory | PSR | 30 hr |
| Apr 28, 2:25 PM MST | Red Flag Warning | PSR | 29 hr |
| May 3, 2:15 PM MST | Fire Weather Watch | PSR | 47 hr |
| May 5, 1:32 PM MST | Red Flag Warning | PSR | 30 hr |
| May 6, 4:15 PM MST | Blowing Dust Advisory | PSR | 4 hr |
| May 13, 3:09 AM MST | Fire Weather Watch | PSR | 11 hr |
| May 18, 9:17 PM MST | Wind Advisory | PSR | 5 hr |
| Jun 12, 2:45 AM MST | Excessive Heat Watch | PSR | 75 days |
| Jun 14, 2:50 AM MST | Excessive Heat Warning | PSR | 13 days |
| Jul 4, 2:07 AM MST | Excessive Heat Watch | PSR | 12 hr |
| Jul 4, 2:13 PM MST | Excessive Heat Warning | PSR | 3 days |
| Jul 8, 7:10 PM MST | Blowing Dust Advisory | PSR | 3 hr |
| Jul 8, 7:50 PM MST | Special Weather Statement | PSR | 25 min |
| Jul 8, 8:16 PM MST | Dust Storm Warning | PSR | 99 min |
| Jul 8, 8:20 PM MST | Special Weather Statement | PSR | 25 min |
| Jul 8, 8:30 PM MST | Severe Thunderstorm Warning | PSR | 30 min |
| Jul 8, 8:57 PM MST | Severe Thunderstorm Warning | PSR | 18 min |
| Jul 11, 6:36 PM MST | Special Weather Statement | PSR | 39 min |
| Jul 11, 6:58 PM MST | Severe Thunderstorm Warning | PSR | 32 min |
| Jul 11, 7:21 PM MST | Areal Flood Advisory | PSR | 114 min |
| Jul 11, 8:04 PM MST | Areal Flood Advisory | PSR | 116 min |
| Jul 15, 6:52 PM MST | Special Weather Statement | PSR | 53 min |
| Jul 16, 1:25 PM MST | Mesoscale Discussion | SPC | 65 min |
| Jul 17, 2:44 PM MST | Mesoscale Discussion | SPC | 91 min |
| Jul 17, 6:29 PM MST | Special Weather Statement | PSR | 46 min |
| Jul 17, 7:26 PM MST | Special Weather Statement | PSR | 49 min |
| Jul 17, 7:35 PM MST | Severe Thunderstorm Warning | PSR | 55 min |
| Jul 17, 8:20 PM MST | Special Weather Statement | PSR | 40 min |
| Jul 17, 9:00 PM MST | Special Weather Statement | PSR | 45 min |
| Jul 17, 9:41 PM MST | Special Weather Statement | PSR | 49 min |
| Jul 18, 9:58 AM MST | Flash Flood Watch | PSR | 16 hr |
| Jul 18, 8:02 PM MST | Flash Flood Warning | PSR | 3 hr |
| Jul 24, 11:10 AM MST | Areal Flood Advisory | PSR | 3 hr |
| Jul 24, 11:26 AM MST | Areal Flood Advisory | PSR | 3 hr |
| Jul 24, 12:00 PM MST | Flash Flood Warning | PSR | 3 hr |
| Jul 24, 12:22 PM MST | Flash Flood Warning | PSR | 6 hr |
| Jul 28, 9:14 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Aug 1, 5:05 PM MST | Blowing Dust Advisory | PSR | 3 hr |
| Aug 1, 7:41 PM MST | Special Weather Statement | PSR | 49 min |
| Aug 2, 2:39 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Aug 2, 5:42 PM MST | Blowing Dust Advisory | PSR | 78 min |
| Aug 3, 7:55 AM MST | Flash Flood Warning | PSR | 3 hr |
| Aug 3, 2:36 PM MST | Special Weather Statement | PSR | 39 min |
| Aug 3, 2:41 PM MST | Severe Thunderstorm Warning | PSR | 34 min |
| Aug 3, 3:17 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Aug 4, 4:59 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Aug 4, 7:01 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Aug 4, 10:11 PM MST | Areal Flood Advisory | PSR | 4 hr |
| Aug 10, 1:25 PM MST | Special Weather Statement | PSR | 50 min |
| Aug 10, 1:35 PM MST | Severe Thunderstorm Warning | PSR | 25 min |
| Aug 10, 2:01 PM MST | Special Weather Statement | PSR | 44 min |
| Aug 10, 2:14 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Aug 10, 2:20 PM MST | Special Weather Statement | PSR | 40 min |
| Aug 10, 2:21 PM MST | Flash Flood Warning | PSR | 3 hr |
| Aug 10, 2:47 PM MST | Flash Flood Warning | PSR | 4 hr |
| Aug 10, 2:56 PM MST | Severe Thunderstorm Warning | PSR | 34 min |
| Aug 10, 3:27 PM MST | Flash Flood Warning | PSR | 4 hr |
| Aug 10, 3:29 PM MST | Severe Thunderstorm Warning | PSR | 31 min |
| Aug 10, 4:02 PM MST | Special Weather Statement | PSR | 58 min |
| Aug 10, 4:50 PM MST | Flash Flood Warning | PSR | 4 hr |
| Aug 10, 5:07 PM MST | Special Weather Statement | PSR | 53 min |
| Aug 10, 7:24 PM MST | Areal Flood Warning | PSR | 3 hr |
| Aug 10, 8:39 PM MST | Areal Flood Warning | PSR | 3 hr |
| Aug 12, 7:05 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Aug 26, 2:50 AM MST | Excessive Heat Warning | PSR | 5 days |
| Sep 6, 5:08 PM MST | Severe Thunderstorm Warning | PSR | 52 min |
| Sep 6, 6:02 PM MST | Severe Thunderstorm Warning | PSR | 38 min |
| Sep 6, 7:39 PM MST | Special Weather Statement | PSR | 51 min |
| Sep 7, 2:10 PM MST | Flash Flood Watch | PSR | 54 hr |
| Sep 7, 2:51 PM MST | Special Weather Statement | PSR | 39 min |
| Sep 7, 3:50 PM MST | Special Weather Statement | PSR | 40 min |
| Sep 7, 4:42 PM MST | Severe Thunderstorm Warning | PSR | 63 min |
| Sep 7, 5:47 PM MST | Special Weather Statement | PSR | 43 min |
| Sep 7, 6:44 PM MST | Flash Flood Warning | PSR | 3 hr |
| Sep 7, 8:06 PM MST | Severe Thunderstorm Warning | PSR | 54 min |
| Sep 7, 9:27 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Sep 8, 1:09 PM MST | Blowing Dust Advisory | PSR | 7 hr |
| Sep 8, 2:15 PM MST | Mesoscale Discussion | SPC | 3 hr |
| Sep 8, 3:40 PM MST | Dust Storm Warning | PSR | 80 min |
| Sep 8, 4:51 PM MST | Special Weather Statement | PSR | 39 min |
| Sep 8, 5:12 PM MST | Severe Thunderstorm Warning | PSR | 48 min |
| Sep 8, 6:58 PM MST | Special Weather Statement | PSR | 47 min |
| Sep 8, 7:49 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Sep 8, 8:00 PM MST | Severe Thunderstorm Warning | PSR | 45 min |
| Sep 8, 8:09 PM MST | Flash Flood Warning | PSR | 3 hr |
| Sep 8, 8:58 PM MST | Special Weather Statement | PSR | 47 min |
| Sep 9, 12:13 AM MST | Areal Flood Advisory | PSR | 3 hr |
| Sep 9, 12:29 AM MST | Flash Flood Warning | PSR | 3 hr |
| Sep 9, 12:33 AM MST | Flash Flood Watch | PSR | 20 hr |
| Sep 9, 2:15 AM MST | Flash Flood Warning | PSR | 2 hr |
| Sep 9, 9:43 AM MST | Areal Flood Advisory | PSR | 3 hr |
| Sep 9, 10:43 AM MST | Special Weather Statement | PSR | 47 min |
| Sep 9, 10:59 AM MST | Flash Flood Warning | PSR | 2 hr |
| Sep 9, 12:15 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Sep 9, 12:19 PM MST | Flash Flood Warning | PSR | 3 hr |
| Sep 9, 1:14 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Oct 20, 11:15 AM MST | Blowing Dust Advisory | PSR | 7 hr |
| Dec 7, 3:26 AM MST | Wind Advisory | PSR | 10 hr |
| Dec 7, 3:28 AM MST | Red Flag Warning | PSR | 13 hr |
| Dec 14, 2:41 AM MST | Red Flag Warning | PSR | 14 hr |
| Dec 19, 3:41 AM MST | Freeze Watch | PSR | 35 hr |
| Dec 20, 2:22 PM MST | Freeze Warning | PSR | 43 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 | 14 |
| Mesoscale Discussion | 3 |
| Special Weather Statement | 24 |
| Flooding | |
| Areal Flood Warning | 2 |
| Flash Flood Warning | 14 |
| Flash Flood Watch | 3 |
| Areal Flood Advisory | 20 |
| Heat | |
| Excessive Heat Warning | 3 |
| Excessive Heat Watch | 2 |
| Cold | |
| Freeze Warning | 1 |
| Freeze Watch | 1 |
| Wind and dust | |
| Dust Storm Warning | 2 |
| Blowing Dust Advisory | 6 |
| Wind Advisory | 3 |
| Fire | |
| Red Flag Warning | 8 |
| Fire Weather Watch | 4 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20162018
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.