Alert archive / Arizona / Mohave County
Weather alerts in Mohave County, Arizona, 2017
215 weather alerts in 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Mohave County and its neighbors
Each county as a circle sized by its count in 2017. Tap one for its archive.
- Alerts
- 215
- Warnings
- 104
- Watches
- 23
- Advisories
- 83
- Busiest month
- July61 alerts
- Busiest day
- July 18, 201712 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Mohave County, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 33 | 10 | 70% | 36 | 58% | 27 min |
| Flash flood warnings | 46 | 15 | 67% | 31 | 81% | 135 min |
Each office's whole area, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Las Vegas, NV: severe thunderstorm warnings | 55 | 13 | 76% | 75 | 49% | 21 min |
| NWS Las Vegas, NV: flash flood warnings | 127 | 44 | 65% | 94 | 73% | 105 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, 3:17 AM MST | Wind Advisory | VEF | 42 hr |
| Jan 1, 3:44 AM MST | Areal Flood Advisory | VEF | 8 hr |
| Jan 3, 3:11 PM MST | Wind Advisory | VEF | 71 hr |
| Jan 18, 5:03 AM MST | Winter Weather Advisory | VEF | 3 days |
| Jan 19, 8:42 PM MST | Areal Flood Advisory | VEF | 2 hr |
| Jan 20, 4:37 AM MST | Flood Watch | VEF | 24 hr |
| Jan 20, 4:46 AM MST | Wind Advisory | VEF | 35 hr |
| Jan 20, 5:35 AM MST | Winter Weather Advisory | VEF | 3 days |
| Jan 20, 1:05 PM MST | Flood Watch | VEF | 3 days |
| Jan 21, 7:38 AM MST | Areal Flood Warning | VEF | 6 hr |
| Jan 25, 10:16 PM MST | Wind Advisory | VEF | 63 hr |
| Jan 27, 3:18 PM MST | Wind Advisory | VEF | 28 hr |
| Feb 4, 2:48 PM MST | Wind Advisory | VEF | 4 days |
| Feb 11, 3:21 AM MST | Wind Advisory | VEF | 23 hr |
| Feb 12, 2:43 AM MST | Lake Wind Advisory | VEF | 14 hr |
| Feb 15, 2:54 PM MST | Flash Flood Watch | VEF | 3 days |
| Feb 16, 3:05 PM MST | Wind Advisory | VEF | 49 hr |
| Feb 27, 3:53 AM MST | Winter Weather Advisory | VEF | 25 hr |
| Feb 27, 10:34 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Mar 3, 3:22 PM MST | High Wind Watch | VEF | 13 hr |
| Mar 4, 3:56 AM MST | High Wind Warning | VEF | 43 hr |
| Mar 26, 1:43 PM MST | Wind Advisory | VEF | 54 hr |
| Mar 28, 4:48 AM MST | High Wind Watch | VEF | 23 hr |
| Mar 29, 3:21 AM MST | High Wind Warning | VEF | 56 hr |
| Mar 29, 3:21 AM MST | Wind Advisory | VEF | 66 hr |
| Mar 30, 3:31 PM MST | Dust Storm Warning | VEF | 6 hr |
| Apr 3, 3:40 PM MST | Severe Thunderstorm Warning | VEF | 50 min |
| Apr 6, 2:21 PM MST | Wind Advisory | VEF | 54 hr |
| Apr 12, 9:38 AM MST | Wind Advisory | VEF | 38 hr |
| Apr 17, 3:03 PM MST | Wind Advisory | VEF | 30 hr |
| Apr 20, 2:45 AM MST | Wind Advisory | VEF | 36 hr |
| Apr 20, 9:14 AM MST | Red Flag Warning | VEF | 35 hr |
| Apr 23, 3:18 AM MST | Wind Advisory | VEF | 17 hr |
| Apr 23, 2:45 PM MST | Wind Advisory | VEF | 38 hr |
| Apr 26, 2:25 PM MST | High Wind Watch | VEF | 20 hr |
| Apr 26, 2:53 PM MST | Fire Weather Watch | VEF | 23 hr |
| Apr 27, 10:51 AM MST | Wind Advisory | VEF | 54 hr |
| Apr 27, 1:55 PM MST | Red Flag Warning | VEF | 55 hr |
| May 5, 2:37 AM MST | Fire Weather Watch | VEF | 12 hr |
| May 5, 2:41 PM MST | Red Flag Warning | VEF | 29 hr |
| May 5, 2:43 PM MST | Wind Advisory | VEF | 29 hr |
| May 13, 2:30 PM MST | Fire Weather Watch | VEF | 12 hr |
| May 24, 2:30 PM MST | Red Flag Warning | VEF | 7 hr |
| May 25, 2:47 AM MST | Red Flag Warning | VEF | 18 hr |
| May 26, 3:21 AM MST | Red Flag Warning | VEF | 17 hr |
| Jun 6, 2:20 PM MST | Fire Weather Watch | VEF | 45 hr |
| Jun 7, 2:09 PM MST | Red Flag Warning | VEF | 29 hr |
| Jun 8, 11:36 AM MST | Red Flag Warning | VEF | 3 days |
| Jun 8, 2:25 PM MST | Wind Advisory | VEF | 32 hr |
| Jun 9, 1:49 PM MST | Wind Advisory | VEF | 61 hr |
| Jun 13, 1:45 PM MST | Excessive Heat Watch | VEF | 24 hr |
| Jun 14, 1:47 PM MST | Excessive Heat Warning | VEF | 12 days |
| Jun 25, 4:28 AM MST | Red Flag Warning | VEF | 41 hr |
| Jun 27, 2:15 PM MST | Red Flag Warning | VEF | 55 hr |
| Jul 5, 2:23 PM MST | Excessive Heat Watch | VEF | 12 hr |
| Jul 6, 2:45 AM MST | Excessive Heat Warning | VEF | 68 hr |
| Jul 8, 7:36 PM MST | Severe Thunderstorm Warning | VEF | 54 min |
| Jul 8, 8:41 PM MST | Areal Flood Advisory | VEF | 2 hr |
| Jul 10, 1:42 PM MST | Severe Thunderstorm Warning | VEF | 19 min |
| Jul 10, 2:58 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Jul 10, 6:00 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Jul 10, 7:57 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Jul 11, 12:25 PM MST | Flash Flood Warning | VEF | 3 hr |
| Jul 11, 2:29 PM MST | Flash Flood Warning | VEF | 3 hr |
| Jul 11, 4:08 PM MST | Severe Thunderstorm Warning | VEF | 52 min |
| Jul 11, 4:27 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Jul 13, 1:42 PM MST | Areal Flood Advisory | VEF | 2 hr |
| Jul 13, 1:55 PM MST | Severe Thunderstorm Warning | VEF | 41 min |
| Jul 16, 1:25 PM MST | Mesoscale Discussion | SPC | 65 min |
| Jul 16, 2:37 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Jul 16, 3:54 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Jul 16, 5:02 PM MST | Flash Flood Warning | VEF | 3 hr |
| Jul 16, 5:17 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Jul 16, 5:51 PM MST | Severe Thunderstorm Warning | VEF | 24 min |
| Jul 17, 8:21 AM MST | Flash Flood Watch | VEF | 14 hr |
| Jul 17, 2:25 PM MST | Severe Thunderstorm Warning | VEF | 65 min |
| Jul 17, 2:44 PM MST | Mesoscale Discussion | SPC | 91 min |
| Jul 17, 3:25 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Jul 17, 4:07 PM MST | Flash Flood Warning | VEF | 3 hr |
| Jul 17, 5:02 PM MST | Flash Flood Warning | VEF | 3 hr |
| Jul 17, 6:57 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Jul 17, 7:02 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Jul 17, 7:19 PM MST | Severe Thunderstorm Warning | VEF | 56 min |
| Jul 17, 8:05 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Jul 17, 8:09 PM MST | Severe Thunderstorm Warning | VEF | 35 min |
| Jul 18, 3:29 AM MST | Flash Flood Watch | VEF | 41 hr |
| Jul 18, 11:16 AM MST | Mesoscale Discussion | SPC | 2 hr |
| Jul 18, 1:59 PM MST | Flash Flood Warning | VEF | 5 hr |
| Jul 18, 2:18 PM MST | Flash Flood Warning | VEF | 3 hr |
| Jul 18, 2:57 PM MST | Flash Flood Warning | VEF | 5 hr |
| Jul 18, 4:25 PM MST | Severe Thunderstorm Warning | VEF | 50 min |
| Jul 18, 5:14 PM MST | Flash Flood Warning | VEF | 2 hr |
| Jul 18, 5:14 PM MST | Severe Thunderstorm Warning | VEF | 35 min |
| Jul 19, 6:04 AM MST | Flash Flood Warning | VEF | 3 hr |
| Jul 19, 7:11 AM MST | Flash Flood Warning | VEF | 3 hr |
| Jul 19, 8:32 AM MST | Flash Flood Warning | VEF | 3 hr |
| Jul 19, 10:08 AM MST | Flash Flood Warning | VEF | 112 min |
| Jul 19, 12:42 PM MST | Flash Flood Warning | VEF | 3 hr |
| Jul 23, 11:36 AM MST | Flash Flood Watch | VEF | 14 hr |
| Jul 23, 3:05 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Jul 23, 4:58 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Jul 24, 3:44 AM MST | Flash Flood Watch | VEF | 40 hr |
| Jul 24, 4:12 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Jul 24, 6:14 PM MST | Flash Flood Warning | VEF | 3 hr |
| Jul 24, 7:30 PM MST | Flash Flood Warning | VEF | 3 hr |
| Jul 24, 8:40 PM MST | Flash Flood Warning | VEF | 3 hr |
| Jul 24, 9:34 PM MST | Flash Flood Warning | VEF | 3 hr |
| Jul 24, 11:59 PM MST | Flash Flood Watch | VEF | 20 hr |
| Jul 25, 5:42 AM MST | Flash Flood Warning | VEF | 10 hr |
| Jul 25, 8:06 AM MST | Flash Flood Warning | VEF | 8 hr |
| Jul 25, 11:06 AM MST | Flash Flood Warning | VEF | 6 hr |
| Jul 25, 4:21 PM MST | Areal Flood Warning | VEF | 12 hr |
| Jul 29, 6:13 PM MST | Flash Flood Warning | VEF | 3 hr |
| Jul 29, 8:42 PM MST | Flash Flood Warning | VEF | 3 hr |
| Jul 31, 2:02 PM MST | Flash Flood Warning | VEF | 3 hr |
| Aug 1, 3:53 PM MST | Areal Flood Advisory | VEF | 6 hr |
| Aug 1, 5:30 PM MST | Severe Thunderstorm Warning | VEF | 75 min |
| Aug 1, 5:37 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Aug 1, 5:45 PM MST | Flash Flood Warning | VEF | 3 hr |
| Aug 1, 6:09 PM MST | Severe Thunderstorm Warning | VEF | 51 min |
| Aug 2, 3:22 PM MST | Mesoscale Discussion | SPC | 2 hr |
| Aug 2, 4:18 PM MST | Flash Flood Warning | VEF | 3 hr |
| Aug 2, 4:38 PM MST | Severe Thunderstorm Warning | VEF | 37 min |
| Aug 2, 5:14 PM MST | Severe Thunderstorm Warning | VEF | 61 min |
| Aug 2, 5:40 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Aug 2, 6:02 PM MST | Severe Thunderstorm Warning | VEF | 28 min |
| Aug 2, 6:31 PM MST | Severe Thunderstorm Warning | VEF | 44 min |
| Aug 2, 7:03 PM MST | Flash Flood Warning | VEF | 3 hr |
| Aug 2, 9:54 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Aug 3, 2:27 AM MST | Flash Flood Watch | VEF | 21 hr |
| Aug 3, 5:18 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Aug 3, 5:29 PM MST | Flash Flood Warning | VEF | 3 hr |
| Aug 3, 7:34 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Aug 3, 8:19 PM MST | Flash Flood Warning | VEF | 3 hr |
| Aug 5, 1:22 AM MST | Areal Flood Advisory | VEF | 3 hr |
| Aug 10, 2:35 PM MST | Flash Flood Warning | VEF | 3 hr |
| Aug 10, 6:30 PM MST | Flash Flood Warning | VEF | 3 hr |
| Aug 10, 8:47 PM MST | Flash Flood Warning | VEF | 118 min |
| Aug 12, 1:50 PM MST | Severe Thunderstorm Warning | VEF | 40 min |
| Aug 12, 2:18 PM MST | Flash Flood Warning | VEF | 3 hr |
| Aug 12, 2:27 PM MST | Severe Thunderstorm Warning | VEF | 48 min |
| Aug 12, 4:30 PM MST | Areal Flood Warning | VEF | 6 hr |
| Aug 12, 7:57 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Aug 13, 12:33 AM MST | Areal Flood Advisory | VEF | 4 hr |
| Aug 13, 2:24 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Aug 13, 2:48 PM MST | Severe Thunderstorm Warning | VEF | 29 min |
| Aug 20, 3:28 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Aug 23, 5:24 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Aug 24, 6:33 AM MST | Areal Flood Advisory | VEF | 3 hr |
| Aug 24, 6:58 AM MST | Flash Flood Warning | VEF | 3 hr |
| Aug 24, 9:51 AM MST | Flash Flood Warning | VEF | 2 hr |
| Aug 25, 2:53 AM MST | Excessive Heat Watch | VEF | 24 hr |
| Aug 26, 2:56 AM MST | Excessive Heat Warning | VEF | 5 days |
| Aug 31, 6:08 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Sep 2, 6:14 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Sep 2, 6:18 PM MST | Severe Thunderstorm Warning | VEF | 42 min |
| Sep 2, 6:58 PM MST | Severe Thunderstorm Warning | VEF | 47 min |
| Sep 3, 2:42 PM MST | Severe Thunderstorm Warning | VEF | 24 min |
| Sep 3, 4:45 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Sep 4, 2:30 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Sep 4, 2:56 PM MST | Severe Thunderstorm Warning | VEF | 28 min |
| Sep 4, 3:10 PM MST | Mesoscale Discussion | SPC | 3 hr |
| Sep 4, 6:03 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Sep 4, 6:28 PM MST | Severe Thunderstorm Warning | VEF | 62 min |
| Sep 5, 4:19 PM MST | Areal Flood Advisory | VEF | 5 hr |
| Sep 5, 4:41 PM MST | Flash Flood Warning | VEF | 3 hr |
| Sep 5, 6:02 PM MST | Severe Thunderstorm Warning | VEF | 88 min |
| Sep 5, 7:04 PM MST | Severe Thunderstorm Warning | VEF | 41 min |
| Sep 5, 7:12 PM MST | Severe Thunderstorm Warning | VEF | 63 min |
| Sep 5, 7:26 PM MST | Severe Thunderstorm Warning | VEF | 49 min |
| Sep 6, 2:41 PM MST | Flash Flood Warning | VEF | 3 hr |
| Sep 7, 12:36 PM MST | Flash Flood Warning | VEF | 3 hr |
| Sep 7, 1:41 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Sep 7, 2:10 PM MST | Flash Flood Watch | VEF | 55 hr |
| Sep 8, 3:43 AM MST | Areal Flood Advisory | VEF | 3 hr |
| Sep 8, 2:52 PM MST | Flash Flood Warning | VEF | 3 hr |
| Sep 8, 4:06 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Sep 8, 5:11 PM MST | Flash Flood Warning | VEF | 3 hr |
| Sep 8, 5:39 PM MST | Severe Thunderstorm Warning | VEF | 51 min |
| Sep 8, 5:44 PM MST | Severe Thunderstorm Warning | VEF | 46 min |
| Sep 8, 7:13 PM MST | Flash Flood Warning | VEF | 3 hr |
| Sep 9, 2:27 AM MST | Flash Flood Warning | VEF | 3 hr |
| Sep 9, 3:07 AM MST | Flash Flood Warning | VEF | 3 hr |
| Sep 9, 12:16 PM MST | Flash Flood Warning | VEF | 4 hr |
| Sep 9, 2:00 PM MST | Flash Flood Warning | VEF | 6 hr |
| Sep 10, 5:07 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Sep 10, 5:23 PM MST | Severe Thunderstorm Warning | VEF | 52 min |
| Sep 10, 6:07 PM MST | Flash Flood Warning | VEF | 113 min |
| Sep 14, 10:53 AM MST | Severe Thunderstorm Warning | VEF | 37 min |
| Sep 20, 2:11 PM MST | Wind Advisory | VEF | 35 hr |
| Sep 24, 2:05 PM MST | Lake Wind Advisory | VEF | 28 hr |
| Oct 7, 3:12 PM MST | Wind Advisory | VEF | 50 hr |
| Oct 13, 2:25 AM MST | Wind Advisory | VEF | 60 hr |
| Oct 13, 2:33 AM MST | Fire Weather Watch | VEF | 12 hr |
| Oct 13, 2:45 PM MST | Red Flag Warning | VEF | 47 hr |
| Oct 19, 2:31 AM MST | Wind Advisory | VEF | 41 hr |
| Oct 20, 8:03 AM MST | Lake Wind Advisory | VEF | 30 hr |
| Oct 20, 3:08 PM MST | Red Flag Warning | VEF | 23 hr |
| Oct 22, 9:39 PM MST | Red Flag Warning | VEF | 44 hr |
| Oct 23, 1:59 AM MST | Lake Wind Advisory | VEF | 40 hr |
| Oct 26, 1:30 AM MST | Fire Weather Watch | VEF | 25 hr |
| Oct 26, 1:33 AM MST | Lake Wind Advisory | VEF | 12 hr |
| Nov 16, 1:13 PM MST | Wind Advisory | VEF | 31 hr |
| Nov 18, 4:38 AM MST | Wind Advisory | VEF | 11 hr |
| Nov 25, 3:44 PM MST | Wind Advisory | VEF | 53 hr |
| Nov 27, 8:41 PM MST | Lake Wind Advisory | VEF | 18 hr |
| Dec 2, 4:54 PM MST | Wind Advisory | VEF | 29 hr |
| Dec 3, 3:27 AM MST | Wind Advisory | VEF | 4 days |
| Dec 7, 4:24 AM MST | Red Flag Warning | VEF | 12 hr |
| Dec 13, 3:37 AM MST | Wind Advisory | VEF | 39 hr |
| Dec 13, 3:41 AM MST | Fire Weather Watch | VEF | 11 hr |
| Dec 13, 2:59 PM MST | Red Flag Warning | VEF | 28 hr |
| Dec 18, 3:25 PM MST | Wind Advisory | VEF | 72 hr |
| Dec 18, 3:33 PM MST | Red Flag Warning | VEF | 72 hr |
| Dec 19, 4:29 AM MST | Wind Advisory | VEF | 59 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 | 33 |
| Mesoscale Discussion | 5 |
| Flooding | |
| Areal Flood Warning | 3 |
| Flash Flood Warning | 46 |
| Flash Flood Watch | 8 |
| Flood Watch | 2 |
| Areal Flood Advisory | 42 |
| Winter | |
| Winter Weather Advisory | 3 |
| Heat | |
| Excessive Heat Warning | 3 |
| Excessive Heat Watch | 3 |
| Wind and dust | |
| Dust Storm Warning | 1 |
| High Wind Warning | 2 |
| High Wind Watch | 3 |
| Lake Wind Advisory | 6 |
| Wind Advisory | 32 |
| Fire | |
| Red Flag Warning | 16 |
| Fire Weather Watch | 7 |
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.