Alert archive / Arizona / Mohave County
Weather alerts in Mohave County, Arizona, 2019
143 weather alerts in 2019, 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 2019. Tap one for its archive.
- Alerts
- 143
- Warnings
- 67
- Watches
- 18
- Advisories
- 56
- Busiest month
- September37 alerts
- Busiest day
- September 23, 20199 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, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 14 | 4 | 71% | 14 | 29% | 22 min |
| Flash flood warnings | 28 | 10 | 64% | 41 | 63% | 101 min |
Each office's whole area, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Las Vegas, NV: tornado warnings | 0 | 1 | 0% | |||
| NWS Las Vegas, NV: severe thunderstorm warnings | 22 | 5 | 77% | 34 | 32% | 20 min |
| NWS Las Vegas, NV: flash flood warnings | 60 | 23 | 62% | 102 | 55% | 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 4, 3:18 AM MST | Winter Weather Advisory | VEF | 3 days |
| Jan 7, 4:14 PM MST | Dense Fog Advisory | VEF | 12 hr |
| Jan 15, 8:14 AM MST | Areal Flood Advisory | VEF | 7 hr |
| Jan 20, 4:02 AM MST | Lake Wind Advisory | VEF | 62 hr |
| Jan 26, 2:54 AM MST | Lake Wind Advisory | VEF | 16 hr |
| Feb 2, 11:41 AM MST | Wind Advisory | VEF | 15 hr |
| Feb 2, 10:25 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Feb 4, 3:41 PM MST | Winter Weather Advisory | VEF | 37 hr |
| Feb 8, 4:16 PM MST | Winter Weather Advisory | VEF | 61 hr |
| Feb 12, 3:06 PM MST | Flash Flood Watch | VEF | 52 hr |
| Feb 15, 2:06 AM MST | Areal Flood Advisory | VEF | 12 hr |
| Feb 16, 3:42 PM MST | Winter Weather Advisory | VEF | 44 hr |
| Feb 19, 4:18 AM MST | Winter Storm Watch | VEF | 11 hr |
| Feb 19, 3:29 PM MST | Winter Storm Warning | VEF | 62 hr |
| Mar 5, 3:04 PM MST | Wind Advisory | VEF | 28 hr |
| Mar 11, 2:31 PM MST | Wind Advisory | VEF | 49 hr |
| Apr 1, 3:24 AM MST | Wind Advisory | VEF | 48 hr |
| Apr 7, 2:37 AM MST | High Wind Watch | VEF | 36 hr |
| Apr 8, 2:59 AM MST | Wind Advisory | VEF | 63 hr |
| Apr 8, 2:44 PM MST | High Wind Warning | VEF | 35 hr |
| Apr 10, 2:10 AM MST | Lake Wind Advisory | VEF | 16 hr |
| Apr 16, 6:42 PM MST | Areal Flood Advisory | VEF | 57 min |
| Apr 16, 7:33 PM MST | Flash Flood Warning | VEF | 3 hr |
| Apr 16, 7:56 PM MST | Areal Flood Advisory | VEF | 2 hr |
| Apr 29, 2:54 PM MST | Severe Thunderstorm Warning | VEF | 36 min |
| Apr 29, 3:17 PM MST | Flash Flood Warning | VEF | 97 min |
| May 10, 2:10 AM MST | Areal Flood Advisory | VEF | 2 hr |
| May 10, 1:18 PM MST | Areal Flood Advisory | VEF | 3 hr |
| May 15, 2:36 PM MST | Wind Advisory | VEF | 29 hr |
| May 17, 2:16 PM MST | Wind Advisory | VEF | 56 hr |
| May 20, 3:22 AM MST | Wind Advisory | VEF | 41 hr |
| May 26, 4:06 AM MST | Lake Wind Advisory | VEF | 17 hr |
| Jun 7, 3:45 AM MST | Wind Advisory | VEF | 16 hr |
| Jun 8, 1:43 PM MST | Wind Advisory | VEF | 24 hr |
| Jun 9, 3:53 AM MST | Excessive Heat Watch | VEF | 24 hr |
| Jun 10, 3:24 AM MST | Excessive Heat Warning | VEF | 4 days |
| Jun 19, 2:31 AM MST | Wind Advisory | VEF | 53 hr |
| Jun 24, 2:41 PM MST | Fire Weather Watch | VEF | 23 hr |
| Jun 25, 1:11 PM MST | Red Flag Warning | VEF | 58 hr |
| Jul 9, 1:11 PM MST | Fire Weather Watch | VEF | 25 hr |
| Jul 10, 2:13 PM MST | Red Flag Warning | VEF | 33 hr |
| Jul 11, 2:55 PM MST | Red Flag Warning | VEF | 30 hr |
| Jul 14, 2:35 PM MST | Fire Weather Watch | VEF | 25 hr |
| Jul 15, 3:08 PM MST | Red Flag Warning | VEF | 53 hr |
| Jul 23, 12:06 PM MST | Mesoscale Discussion | SPC | 114 min |
| Jul 24, 12:17 PM MST | Flash Flood Warning | VEF | 3 hr |
| Jul 24, 12:24 PM MST | Flash Flood Watch | VEF | 9 hr |
| Jul 24, 1:16 PM MST | Flash Flood Warning | VEF | 3 hr |
| Jul 24, 3:22 PM MST | Flash Flood Warning | VEF | 3 hr |
| Jul 24, 4:49 PM MST | Flash Flood Warning | VEF | 3 hr |
| Jul 24, 6:42 PM MST | Severe Thunderstorm Warning | VEF | 49 min |
| Jul 25, 6:24 PM MST | Flash Flood Warning | VEF | 3 hr |
| Jul 25, 6:30 PM MST | Flash Flood Warning | VEF | 3 hr |
| Jul 26, 12:24 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Jul 26, 3:26 PM MST | Severe Thunderstorm Warning | VEF | 18 min |
| Jul 31, 7:55 AM MST | Areal Flood Advisory | VEF | 3 hr |
| Jul 31, 8:41 AM MST | Areal Flood Advisory | VEF | 3 hr |
| Aug 1, 5:22 PM MST | Flash Flood Warning | VEF | 85 min |
| Aug 2, 1:15 PM MST | Excessive Heat Warning | VEF | 3 days |
| Aug 2, 4:10 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Aug 7, 4:16 PM MST | Flash Flood Warning | VEF | 3 hr |
| Aug 7, 5:32 PM MST | Flash Flood Warning | VEF | 115 min |
| Aug 7, 7:02 PM MST | Areal Flood Warning | VEF | 12 hr |
| Aug 7, 7:10 PM MST | Flash Flood Warning | VEF | 96 min |
| Aug 8, 8:52 PM MST | Severe Thunderstorm Warning | VEF | 38 min |
| Aug 12, 2:59 AM MST | Excessive Heat Watch | VEF | 35 hr |
| Aug 13, 2:26 PM MST | Excessive Heat Warning | VEF | 3 days |
| Aug 17, 2:38 AM MST | Excessive Heat Watch | VEF | 25 hr |
| Aug 18, 3:21 AM MST | Excessive Heat Warning | VEF | 4 days |
| Aug 25, 2:57 PM MST | Excessive Heat Watch | VEF | 12 hr |
| Aug 26, 3:13 AM MST | Excessive Heat Warning | VEF | 7 days |
| Aug 27, 3:49 PM MST | Red Flag Warning | VEF | 29 hr |
| Aug 27, 3:55 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Aug 27, 5:03 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Sep 1, 4:34 PM MST | Severe Thunderstorm Warning | VEF | 41 min |
| Sep 1, 4:48 PM MST | Flash Flood Warning | VEF | 3 hr |
| Sep 1, 8:24 PM MST | Flash Flood Warning | VEF | 98 min |
| Sep 1, 10:27 PM MST | Severe Thunderstorm Warning | VEF | 63 min |
| Sep 1, 10:29 PM MST | Dust Storm Warning | VEF | 61 min |
| Sep 2, 12:04 AM MST | Severe Thunderstorm Warning | VEF | 41 min |
| Sep 3, 3:28 AM MST | Excessive Heat Warning | VEF | 41 hr |
| Sep 4, 2:19 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Sep 4, 3:36 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Sep 4, 9:36 PM MST | Dust Storm Warning | VEF | 54 min |
| Sep 4, 10:03 PM MST | Flash Flood Warning | VEF | 3 hr |
| Sep 5, 1:31 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Sep 5, 3:10 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Sep 5, 4:19 PM MST | Flash Flood Warning | VEF | 95 min |
| Sep 5, 6:27 PM MST | Areal Flood Advisory | VEF | 2 hr |
| Sep 6, 2:25 PM MST | Fire Weather Watch | VEF | 23 hr |
| Sep 7, 1:48 PM MST | Red Flag Warning | VEF | 30 hr |
| Sep 8, 2:17 PM MST | Lake Wind Advisory | VEF | 57 hr |
| Sep 18, 1:49 PM MST | Red Flag Warning | VEF | 30 hr |
| Sep 23, 9:32 AM MST | Severe Thunderstorm Warning | VEF | 43 min |
| Sep 23, 9:52 AM MST | Severe Thunderstorm Watch | SPC | 10 hr |
| Sep 23, 12:13 PM MST | Severe Thunderstorm Warning | VEF | 47 min |
| Sep 23, 1:35 PM MST | Severe Thunderstorm Warning | VEF | 40 min |
| Sep 23, 1:57 PM MST | Flash Flood Warning | VEF | 2 hr |
| Sep 23, 3:18 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Sep 23, 3:52 PM MST | Flash Flood Warning | VEF | 3 hr |
| Sep 23, 4:11 PM MST | Severe Thunderstorm Warning | VEF | 49 min |
| Sep 23, 4:46 PM MST | Severe Thunderstorm Warning | VEF | 44 min |
| Sep 23, 5:18 PM MST | Severe Thunderstorm Warning | VEF | 42 min |
| Sep 23, 5:29 PM MST | Flash Flood Warning | VEF | 3 hr |
| Sep 23, 5:55 PM MST | Severe Thunderstorm Warning | VEF | 65 min |
| Sep 23, 6:31 PM MST | Flash Flood Warning | VEF | 3 hr |
| Sep 23, 6:49 PM MST | Flash Flood Warning | VEF | 3 hr |
| Sep 23, 8:46 PM MST | Flash Flood Warning | VEF | 4 hr |
| Sep 24, 2:25 PM MST | Flash Flood Watch | VEF | 51 hr |
| Sep 26, 3:00 PM MST | Wind Advisory | VEF | 63 hr |
| Sep 26, 3:18 PM MST | Flash Flood Warning | VEF | 3 hr |
| Oct 8, 3:29 AM MST | Wind Advisory | VEF | 3 days |
| Oct 8, 3:46 AM MST | Red Flag Warning | VEF | 3 days |
| Oct 20, 3:25 AM MST | Lake Wind Advisory | VEF | 14 hr |
| Oct 23, 2:47 AM MST | Red Flag Warning | VEF | 41 hr |
| Oct 23, 3:01 AM MST | Wind Advisory | VEF | 41 hr |
| Oct 25, 3:22 PM MST | Fire Weather Watch | VEF | 23 hr |
| Oct 26, 2:41 PM MST | Lake Wind Advisory | VEF | 41 hr |
| Oct 28, 2:19 PM MST | Wind Advisory | VEF | 51 hr |
| Oct 28, 2:21 PM MST | Red Flag Warning | VEF | 51 hr |
| Nov 10, 3:39 PM MST | Red Flag Warning | VEF | 23 hr |
| Nov 18, 2:44 PM MST | Flash Flood Watch | VEF | 48 hr |
| Nov 19, 6:49 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Nov 19, 9:53 PM MST | Areal Flood Advisory | VEF | 5 hr |
| Nov 20, 2:47 AM MST | Areal Flood Advisory | VEF | 4 hr |
| Nov 20, 3:46 AM MST | Flash Flood Warning | VEF | 3 hr |
| Nov 20, 7:04 AM MST | Areal Flood Warning | VEF | 5 hr |
| Nov 23, 2:53 PM MST | Winter Storm Watch | VEF | 61 hr |
| Nov 25, 2:55 AM MST | Winter Storm Warning | VEF | 5 days |
| Nov 28, 6:27 PM MST | Flash Flood Warning | VEF | 3 hr |
| Nov 28, 6:39 PM MST | Flash Flood Warning | VEF | 3 hr |
| Nov 28, 7:27 PM MST | Flash Flood Warning | VEF | 3 hr |
| Nov 28, 10:03 PM MST | Flash Flood Warning | VEF | 6 hr |
| Nov 28, 11:35 PM MST | Areal Flood Warning | VEF | 6 hr |
| Nov 29, 1:06 AM MST | Mesoscale Discussion | SPC | 6 hr |
| Dec 4, 2:16 PM MST | Areal Flood Advisory | VEF | 119 min |
| Dec 4, 3:11 PM MST | Areal Flood Advisory | VEF | 2 hr |
| Dec 4, 5:20 PM MST | Areal Flood Advisory | VEF | 115 min |
| Dec 5, 3:30 AM MST | Dense Fog Advisory | VEF | 6 hr |
| Dec 8, 11:33 PM MST | Areal Flood Advisory | VEF | 3 hr |
| Dec 9, 1:19 AM MST | Areal Flood Advisory | VEF | 3 hr |
| Dec 17, 3:21 AM MST | Lake Wind Advisory | VEF | 15 hr |
| Dec 25, 4:50 AM MST | Flash Flood Watch | VEF | 41 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 |
| Severe Thunderstorm Watch | 1 |
| Mesoscale Discussion | 2 |
| Flooding | |
| Areal Flood Warning | 3 |
| Flash Flood Warning | 28 |
| Flash Flood Watch | 5 |
| Areal Flood Advisory | 27 |
| Winter | |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 4 |
| Heat | |
| Excessive Heat Warning | 6 |
| Excessive Heat Watch | 4 |
| Wind and dust | |
| Dust Storm Warning | 2 |
| High Wind Warning | 1 |
| High Wind Watch | 1 |
| Lake Wind Advisory | 8 |
| Wind Advisory | 15 |
| Fire | |
| Red Flag Warning | 11 |
| Fire Weather Watch | 5 |
| Fog and smoke | |
| Dense Fog Advisory | 2 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20182020
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.