Alert archive / Arizona / Maricopa County
Weather alerts in Maricopa County, Arizona, 2019
387 weather alerts in 2019, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Maricopa County and its neighbors
Each county as a circle sized by its count in 2019. Tap one for its archive.
- Alerts
- 387
- Warnings
- 140
- Watches
- 22
- Advisories
- 124
- Busiest month
- September154 alerts
- Busiest day
- September 23, 201930 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
1 of 3 tornado warnings covering Maricopa County in 2019 had a tornado report inside them; 1 of 6 tornado reports fell inside a warning, on average 0 minutes after it went out.
Maricopa County, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 3 | 1 | 67% | 6 | 17% | 0 min |
| Severe thunderstorm warnings | 46 | 18 | 61% | 49 | 73% | 14 min |
| Flash flood warnings | 53 | 33 | 38% | 62 | 84% | 98 min |
Each office's whole area, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Phoenix, AZ: tornado warnings | 3 | 1 | 67% | 7 | 14% | 0 min |
| NWS Phoenix, AZ: severe thunderstorm warnings | 80 | 24 | 70% | 73 | 68% | 16 min |
| NWS Phoenix, AZ: flash flood warnings | 123 | 61 | 50% | 115 | 83% | 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, 7:49 AM MST | Dense Fog Advisory | PSR | 3 hr |
| Jan 7, 3:45 AM MST | Dense Fog Advisory | PSR | 5 hr |
| Jan 15, 1:04 PM MST | Areal Flood Advisory | PSR | 4 hr |
| Jan 15, 2:28 PM MST | Areal Flood Advisory | PSR | 4 hr |
| Jan 15, 3:33 PM MST | Flash Flood Warning | PSR | 4 hr |
| Jan 15, 6:46 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Jan 16, 4:33 AM MST | Dense Fog Advisory | PSR | 8 hr |
| Feb 5, 8:55 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Feb 6, 12:04 AM MST | Areal Flood Warning | PSR | 3 hr |
| Feb 6, 2:50 AM MST | Areal Flood Warning | PSR | 3 hr |
| Feb 6, 7:11 AM MST | Areal Flood Advisory | PSR | 3 hr |
| Feb 12, 2:27 PM MST | Flood Watch | PSR | 69 hr |
| Feb 14, 9:12 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Feb 14, 9:55 PM MST | Flash Flood Warning | PSR | 3 hr |
| Feb 14, 10:28 PM MST | Flash Flood Warning | PSR | 3 hr |
| Feb 16, 3:49 AM MST | Winter Storm Warning | PSR | 62 hr |
| Feb 16, 3:49 AM MST | Winter Weather Advisory | PSR | 62 hr |
| Feb 17, 1:31 PM MST | Freeze Watch | PSR | 38 hr |
| Feb 19, 3:48 AM MST | Winter Storm Watch | PSR | 24 hr |
| Feb 19, 3:55 AM MST | Freeze Warning | PSR | 29 hr |
| Feb 20, 3:31 AM MST | Winter Storm Warning | PSR | 64 hr |
| Feb 20, 3:31 AM MST | Winter Weather Advisory | PSR | 55 hr |
| Feb 21, 11:39 AM MST | Special Weather Statement | PSR | 51 min |
| Feb 21, 12:43 PM MST | Severe Thunderstorm Warning | PSR | 32 min |
| Feb 21, 12:46 PM MST | Special Weather Statement | PSR | 44 min |
| Feb 21, 1:27 PM MST | Areal Flood Advisory | PSR | 2 hr |
| Feb 21, 5:09 PM MST | Areal Flood Advisory | PSR | 12 hr |
| Feb 21, 9:34 PM MST | Areal Flood Warning | PSR | 6 hr |
| Feb 22, 12:05 AM MST | Areal Flood Warning | PSR | 6 hr |
| Feb 22, 6:03 AM MST | Areal Flood Warning | PSR | 3 hr |
| Feb 22, 4:02 PM MST | Special Weather Statement | PSR | 58 min |
| Mar 12, 11:24 AM MST | Special Weather Statement | PSR | 51 min |
| Mar 12, 11:28 AM MST | Areal Flood Advisory | PSR | 3 hr |
| Mar 12, 12:20 PM MST | Areal Flood Advisory | PSR | 115 min |
| Mar 12, 1:04 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Mar 12, 5:19 PM MST | Wind Advisory | PSR | 25 hr |
| Apr 8, 2:21 AM MST | Wind Advisory | PSR | 65 hr |
| Apr 9, 4:42 AM MST | Fire Weather Watch | PSR | 9 hr |
| Apr 9, 1:26 PM MST | Red Flag Warning | PSR | 8 hr |
| Apr 9, 1:26 PM MST | Red Flag Warning | PSR | 30 hr |
| Apr 29, 1:45 PM MST | Special Weather Statement | PSR | 15 min |
| Apr 29, 3:33 PM MST | Blowing Dust Advisory | PSR | 2 hr |
| Apr 29, 6:32 PM MST | Special Weather Statement | PSR | 43 min |
| Apr 29, 8:34 PM MST | Special Weather Statement | PSR | 26 min |
| Apr 29, 9:05 PM MST | Special Weather Statement | PSR | 25 min |
| May 12, 1:41 PM MST | Areal Flood Advisory | PSR | 2 hr |
| May 14, 4:22 PM MST | Wind Advisory | PSR | 67 hr |
| May 18, 3:52 AM MST | Wind Advisory | PSR | 4 days |
| Jun 7, 3:31 AM MST | Excessive Heat Watch | PSR | 71 hr |
| Jun 10, 2:10 AM MST | Excessive Heat Warning | PSR | 4 days |
| Jul 7, 11:36 AM MST | Flash Flood Warning | PSR | 4 hr |
| Jul 8, 2:37 AM MST | Excessive Heat Watch | PSR | 35 hr |
| Jul 9, 1:19 PM MST | Excessive Heat Warning | PSR | 7 days |
| Jul 12, 2:40 AM MST | Excessive Heat Warning | PSR | 5 days |
| Jul 12, 7:13 PM MST | Special Weather Statement | PSR | 47 min |
| Jul 12, 8:05 PM MST | Special Weather Statement | PSR | 40 min |
| Jul 21, 6:24 PM MST | Dust Storm Advisory | PSR | 66 min |
| Jul 21, 7:08 PM MST | Flash Flood Warning | PSR | 3 hr |
| Jul 22, 9:02 AM MST | Blowing Dust Advisory | PSR | 13 hr |
| Jul 22, 3:51 PM MST | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 22, 6:25 PM MST | Mesoscale Discussion | SPC | 95 min |
| Jul 22, 7:03 PM MST | Dust Storm Advisory | PSR | 57 min |
| Jul 22, 7:18 PM MST | Severe Thunderstorm Warning | PSR | 57 min |
| Jul 22, 7:54 PM MST | Special Weather Statement | PSR | 66 min |
| Jul 22, 7:57 PM MST | Dust Storm Warning | PSR | 63 min |
| Jul 22, 8:59 PM MST | Special Weather Statement | PSR | 61 min |
| Jul 22, 9:02 PM MST | Mesoscale Discussion | SPC | 88 min |
| Jul 22, 9:49 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Jul 22, 10:05 PM MST | Dust Storm Advisory | PSR | 85 min |
| Jul 22, 11:39 PM MST | Special Weather Statement | PSR | 36 min |
| Jul 23, 11:33 AM MST | Flash Flood Watch | PSR | 9 hr |
| Jul 23, 6:13 PM MST | Mesoscale Discussion | SPC | 92 min |
| Jul 25, 5:36 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Jul 25, 6:39 PM MST | Dust Storm Advisory | PSR | 66 min |
| Jul 27, 2:13 PM MST | Excessive Heat Warning | PSR | 30 hr |
| Jul 29, 7:55 PM MST | Dust Storm Advisory | PSR | 65 min |
| Jul 30, 3:34 AM MST | Flash Flood Watch | PSR | 28 hr |
| Jul 30, 2:04 PM MST | Blowing Dust Advisory | PSR | 6 hr |
| Jul 30, 3:00 PM MST | Mesoscale Discussion | SPC | 2 hr |
| Jul 30, 4:34 PM MST | Special Weather Statement | PSR | 41 min |
| Jul 30, 5:09 PM MST | Severe Thunderstorm Warning | PSR | 36 min |
| Jul 30, 5:24 PM MST | Severe Thunderstorm Warning | PSR | 36 min |
| Jul 30, 5:29 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Jul 30, 5:33 PM MST | Special Weather Statement | PSR | 42 min |
| Jul 30, 5:52 PM MST | Special Weather Statement | PSR | 38 min |
| Jul 30, 7:35 PM MST | Areal Flood Advisory | PSR | 4 hr |
| Jul 30, 8:40 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Jul 30, 9:57 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Jul 30, 10:21 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Jul 30, 11:42 PM MST | Flash Flood Warning | PSR | 4 hr |
| Jul 31, 3:24 PM MST | Flash Flood Warning | PSR | 4 hr |
| Aug 2, 12:55 PM MST | Excessive Heat Warning | PSR | 3 days |
| Aug 3, 12:55 PM MST | Flash Flood Warning | PSR | 4 hr |
| Aug 3, 8:09 PM MST | Dust Storm Advisory | PSR | 66 min |
| Aug 3, 9:27 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Aug 3, 9:30 PM MST | Special Weather Statement | PSR | 30 min |
| Aug 3, 9:58 PM MST | Special Weather Statement | PSR | 32 min |
| Aug 5, 3:38 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Aug 5, 4:44 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Aug 5, 5:02 PM MST | Areal Flood Advisory | PSR | 118 min |
| Aug 5, 5:18 PM MST | Dust Storm Advisory | PSR | 57 min |
| Aug 5, 5:22 PM MST | Dust Storm Advisory | PSR | 83 min |
| Aug 5, 5:57 PM MST | Dust Storm Advisory | PSR | 63 min |
| Aug 5, 8:32 PM MST | Special Weather Statement | PSR | 43 min |
| Aug 7, 1:54 PM MST | Severe Thunderstorm Warning | PSR | 36 min |
| Aug 7, 2:12 PM MST | Areal Flood Advisory | PSR | 2 hr |
| Aug 7, 2:57 PM MST | Flash Flood Warning | PSR | 4 hr |
| Aug 7, 3:13 PM MST | Severe Thunderstorm Warning | PSR | 19 min |
| Aug 7, 3:58 PM MST | Dust Storm Advisory | PSR | 62 min |
| Aug 7, 4:08 PM MST | Special Weather Statement | PSR | 37 min |
| Aug 7, 4:15 PM MST | Special Weather Statement | PSR | 30 min |
| Aug 7, 4:28 PM MST | Severe Thunderstorm Warning | PSR | 17 min |
| Aug 7, 4:33 PM MST | Dust Storm Advisory | PSR | 42 min |
| Aug 7, 4:47 PM MST | Special Weather Statement | PSR | 43 min |
| Aug 7, 4:57 PM MST | Dust Storm Advisory | PSR | 48 min |
| Aug 7, 5:19 PM MST | Dust Storm Advisory | PSR | 56 min |
| Aug 8, 6:38 PM MST | Areal Flood Advisory | PSR | 112 min |
| Aug 9, 8:22 AM MST | Areal Flood Advisory | PSR | 69 min |
| Aug 9, 2:52 PM MST | Flash Flood Watch | PSR | 38 hr |
| Aug 10, 4:44 PM MST | Special Weather Statement | PSR | 31 min |
| Aug 11, 2:45 AM MST | Excessive Heat Watch | PSR | 36 hr |
| Aug 12, 2:17 PM MST | Excessive Heat Warning | PSR | 4 days |
| Aug 16, 1:06 PM MST | Excessive Heat Warning | PSR | 5 days |
| Aug 22, 5:38 PM MST | Special Weather Statement | PSR | 52 min |
| Aug 22, 9:08 PM MST | Dust Storm Advisory | PSR | 67 min |
| Aug 25, 2:16 PM MST | Excessive Heat Watch | PSR | 24 hr |
| Aug 26, 2:15 PM MST | Excessive Heat Warning | PSR | 54 hr |
| Aug 27, 2:16 PM MST | Excessive Heat Warning | PSR | 4 days |
| Aug 28, 6:47 PM MST | Dust Storm Advisory | PSR | 58 min |
| Aug 28, 8:13 PM MST | Dust Storm Advisory | PSR | 47 min |
| Aug 28, 8:44 PM MST | Severe Thunderstorm Warning | PSR | 31 min |
| Aug 28, 8:59 PM MST | Areal Flood Advisory | PSR | 2 hr |
| Aug 28, 9:12 PM MST | Severe Thunderstorm Warning | PSR | 33 min |
| Aug 28, 9:20 PM MST | Areal Flood Advisory | PSR | 115 min |
| Aug 28, 9:22 PM MST | Severe Thunderstorm Warning | PSR | 38 min |
| Aug 28, 9:41 PM MST | Special Weather Statement | PSR | 34 min |
| Aug 28, 9:50 PM MST | Areal Flood Advisory | PSR | 115 min |
| Aug 28, 9:54 PM MST | Special Weather Statement | PSR | 36 min |
| Aug 28, 9:58 PM MST | Flash Flood Warning | PSR | 4 hr |
| Aug 28, 10:05 PM MST | Areal Flood Advisory | PSR | 115 min |
| Aug 28, 10:15 PM MST | Flash Flood Warning | PSR | 3 hr |
| Aug 28, 10:15 PM MST | Special Weather Statement | PSR | 30 min |
| Aug 28, 10:19 PM MST | Areal Flood Advisory | PSR | 116 min |
| Aug 28, 10:34 PM MST | Special Weather Statement | PSR | 26 min |
| Aug 28, 10:43 PM MST | Special Weather Statement | PSR | 32 min |
| Aug 28, 11:08 PM MST | Special Weather Statement | PSR | 37 min |
| Aug 28, 11:12 PM MST | Areal Flood Advisory | PSR | 2 hr |
| Aug 28, 11:36 PM MST | Flash Flood Warning | PSR | 5 hr |
| Aug 28, 11:41 PM MST | Special Weather Statement | PSR | 49 min |
| Aug 29, 12:34 AM MST | Areal Flood Advisory | PSR | 4 hr |
| Sep 1, 11:07 AM MST | Blowing Dust Advisory | PSR | 11 hr |
| Sep 1, 1:27 PM MST | Severe Thunderstorm Warning | PSR | 48 min |
| Sep 1, 1:34 PM MST | Mesoscale Discussion | SPC | 116 min |
| Sep 1, 1:54 PM MST | Flash Flood Warning | PSR | 4 hr |
| Sep 1, 3:31 PM MST | Severe Thunderstorm Warning | PSR | 44 min |
| Sep 1, 3:37 PM MST | Severe Thunderstorm Watch | SPC | 7 hr |
| Sep 1, 4:27 PM MST | Flash Flood Warning | PSR | 2 hr |
| Sep 1, 4:51 PM MST | Severe Thunderstorm Warning | PSR | 24 min |
| Sep 1, 4:54 PM MST | Severe Thunderstorm Warning | PSR | 21 min |
| Sep 1, 5:08 PM MST | Dust Storm Warning | PSR | 67 min |
| Sep 1, 5:25 PM MST | Mesoscale Discussion | SPC | 2 hr |
| Sep 1, 5:31 PM MST | Special Weather Statement | PSR | 44 min |
| Sep 1, 5:40 PM MST | Severe Thunderstorm Warning | PSR | 18 min |
| Sep 1, 5:56 PM MST | Severe Thunderstorm Warning | PSR | 94 min |
| Sep 1, 6:42 PM MST | Flash Flood Warning | PSR | 5 hr |
| Sep 1, 6:46 PM MST | Special Weather Statement | PSR | 44 min |
| Sep 1, 7:06 PM MST | Special Weather Statement | PSR | 24 min |
| Sep 1, 7:29 PM MST | Severe Thunderstorm Warning | PSR | 28 min |
| Sep 1, 7:51 PM MST | Flash Flood Warning | PSR | 4 hr |
| Sep 2, 3:11 AM MST | Excessive Heat Watch | PSR | 24 hr |
| Sep 3, 3:08 AM MST | Excessive Heat Warning | PSR | 41 hr |
| Sep 5, 2:21 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Sep 5, 2:42 PM MST | Severe Thunderstorm Warning | PSR | 33 min |
| Sep 5, 2:56 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Sep 5, 3:40 PM MST | Special Weather Statement | PSR | 50 min |
| Sep 5, 4:04 PM MST | Special Weather Statement | PSR | 41 min |
| Sep 5, 6:28 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Sep 6, 2:52 PM MST | Excessive Heat Warning | PSR | 29 hr |
| Sep 6, 5:25 PM MST | Special Weather Statement | PSR | 35 min |
| Sep 7, 6:28 PM MST | Severe Thunderstorm Warning | PSR | 32 min |
| Sep 7, 6:57 PM MST | Flash Flood Warning | PSR | 6 hr |
| Sep 10, 4:20 AM MST | Areal Flood Advisory | PSR | 3 hr |
| Sep 10, 5:33 AM MST | Areal Flood Advisory | PSR | 3 hr |
| Sep 10, 5:35 AM MST | Flash Flood Warning | PSR | 4 hr |
| Sep 10, 11:03 AM MST | Areal Flood Advisory | PSR | 4 hr |
| Sep 14, 8:51 AM MST | Blowing Dust Advisory | PSR | 11 hr |
| Sep 14, 1:21 PM MST | Mesoscale Discussion | SPC | 114 min |
| Sep 14, 2:44 PM MST | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 14, 3:41 PM MST | Severe Thunderstorm Warning | PSR | 34 min |
| Sep 14, 3:54 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Sep 14, 4:05 PM MST | Severe Thunderstorm Warning | PSR | 25 min |
| Sep 14, 4:10 PM MST | Dust Storm Warning | PSR | 65 min |
| Sep 14, 4:50 PM MST | Severe Thunderstorm Warning | PSR | 40 min |
| Sep 14, 4:53 PM MST | Mesoscale Discussion | SPC | 2 hr |
| Sep 14, 5:07 PM MST | Dust Storm Warning | PSR | 53 min |
| Sep 14, 5:20 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Sep 14, 6:01 PM MST | Dust Storm Warning | PSR | 59 min |
| Sep 14, 7:01 PM MST | Special Weather Statement | PSR | 44 min |
| Sep 14, 7:40 PM MST | Mesoscale Discussion | SPC | 95 min |
| Sep 16, 3:11 PM MST | Dust Storm Advisory | PSR | 34 min |
| Sep 16, 5:33 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Sep 16, 6:08 PM MST | Severe Thunderstorm Warning | PSR | 37 min |
| Sep 16, 6:30 PM MST | Flash Flood Warning | PSR | 4 hr |
| Sep 16, 6:33 PM MST | Special Weather Statement | PSR | 42 min |
| Sep 16, 6:41 PM MST | Severe Thunderstorm Warning | PSR | 34 min |
| Sep 16, 6:44 PM MST | Special Weather Statement | PSR | 46 min |
| Sep 16, 6:54 PM MST | Severe Thunderstorm Warning | PSR | 36 min |
| Sep 16, 7:06 PM MST | Special Weather Statement | PSR | 39 min |
| Sep 16, 7:12 PM MST | Flash Flood Warning | PSR | 4 hr |
| Sep 16, 7:16 PM MST | Special Weather Statement | PSR | 44 min |
| Sep 16, 7:19 PM MST | Severe Thunderstorm Warning | PSR | 41 min |
| Sep 16, 7:26 PM MST | Special Weather Statement | PSR | 34 min |
| Sep 16, 7:55 PM MST | Special Weather Statement | PSR | 50 min |
| Sep 16, 7:58 PM MST | Severe Thunderstorm Warning | PSR | 32 min |
| Sep 16, 8:00 PM MST | Flash Flood Warning | PSR | 4 hr |
| Sep 16, 8:13 PM MST | Special Weather Statement | PSR | 32 min |
| Sep 16, 9:13 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Sep 16, 11:48 PM MST | Areal Flood Warning | PSR | 6 hr |
| Sep 23, 2:32 AM MST | Flash Flood Watch | PSR | 32 hr |
| Sep 23, 4:38 AM MST | Flash Flood Warning | PSR | 4 hr |
| Sep 23, 5:15 AM MST | Areal Flood Advisory | PSR | 4 hr |
| Sep 23, 5:41 AM MST | Flash Flood Warning | PSR | 4 hr |
| Sep 23, 6:01 AM MST | Areal Flood Advisory | PSR | 4 hr |
| Sep 23, 6:01 AM MST | Flash Flood Warning | PSR | 4 hr |
| Sep 23, 6:09 AM MST | Flash Flood Warning | PSR | 4 hr |
| Sep 23, 6:26 AM MST | Flash Flood Warning | PSR | 4 hr |
| Sep 23, 7:27 AM MST | Flash Flood Warning | PSR | 4 hr |
| Sep 23, 7:59 AM MST | Mesoscale Discussion | SPC | 2 hr |
| Sep 23, 8:18 AM MST | Flash Flood Warning | PSR | 4 hr |
| Sep 23, 8:36 AM MST | Flash Flood Warning | PSR | 4 hr |
| Sep 23, 9:52 AM MST | Severe Thunderstorm Watch | SPC | 10 hr |
| Sep 23, 11:11 AM MST | Special Weather Statement | PSR | 49 min |
| Sep 23, 11:24 AM MST | Severe Thunderstorm Warning | PSR | 51 min |
| Sep 23, 11:37 AM MST | Mesoscale Discussion | SPC | 83 min |
| Sep 23, 11:38 AM MST | Flash Flood Warning | PSR | 6 hr |
| Sep 23, 11:57 AM MST | Flash Flood Warning | PSR | 4 hr |
| Sep 23, 12:14 PM MST | Tornado Warning | PSR | 31 min |
| Sep 23, 12:45 PM MST | Special Weather Statement | PSR | 45 min |
| Sep 23, 1:04 PM MST | Flash Flood Warning | PSR | 4 hr |
| Sep 23, 1:23 PM MST | Special Weather Statement | PSR | 67 min |
| Sep 23, 1:26 PM MST | Flash Flood Warning | PSR | 5 hr |
| Sep 23, 1:50 PM MST | Dust Storm Warning | PSR | 55 min |
| Sep 23, 2:41 PM MST | Dust Storm Warning | PSR | 64 min |
| Sep 23, 2:43 PM MST | Severe Thunderstorm Warning | PSR | 32 min |
| Sep 23, 3:05 PM MST | Mesoscale Discussion | SPC | 115 min |
| Sep 23, 4:12 PM MST | Flash Flood Warning | PSR | 4 hr |
| Sep 23, 4:28 PM MST | Special Weather Statement | PSR | 47 min |
| Sep 23, 4:51 PM MST | Severe Thunderstorm Warning | PSR | 39 min |
| Sep 23, 5:26 PM MST | Areal Flood Warning | PSR | 12 hr |
| Sep 23, 5:29 PM MST | Severe Thunderstorm Warning | PSR | 12 min |
| Sep 23, 5:46 PM MST | Severe Thunderstorm Warning | PSR | 29 min |
| Sep 23, 6:02 PM MST | Mesoscale Discussion | SPC | 118 min |
| Sep 23, 6:24 PM MST | Areal Flood Advisory | PSR | 2 hr |
| Sep 23, 6:24 PM MST | Severe Thunderstorm Warning | PSR | 36 min |
| Sep 23, 6:38 PM MST | Areal Flood Advisory | PSR | 2 hr |
| Sep 23, 6:56 PM MST | Severe Thunderstorm Warning | PSR | 19 min |
| Sep 23, 6:58 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Sep 23, 7:03 PM MST | Flash Flood Warning | PSR | 4 hr |
| Sep 23, 7:24 PM MST | Flash Flood Warning | PSR | 5 hr |
| Sep 23, 9:08 PM MST | Areal Flood Advisory | PSR | 112 min |
| Sep 23, 9:11 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Sep 23, 9:17 PM MST | Special Weather Statement | PSR | 43 min |
| Sep 23, 10:03 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Sep 23, 10:55 PM MST | Areal Flood Advisory | PSR | 2 hr |
| Sep 23, 11:30 PM MST | Flash Flood Warning | PSR | 4 hr |
| Sep 24, 3:52 AM MST | Special Weather Statement | PSR | 23 min |
| Sep 24, 4:31 AM MST | Areal Flood Warning | PSR | 12 hr |
| Sep 24, 5:19 AM MST | Areal Flood Advisory | PSR | 12 hr |
| Sep 24, 2:25 PM MST | Flash Flood Watch | PSR | 51 hr |
| Sep 24, 4:33 PM MST | Areal Flood Advisory | PSR | 12 hr |
| Sep 24, 5:43 PM MST | Areal Flood Advisory | PSR | 12 hr |
| Sep 25, 3:48 PM MST | Mesoscale Discussion | SPC | 87 min |
| Sep 25, 6:59 PM MST | Special Weather Statement | PSR | 61 min |
| Sep 25, 7:53 PM MST | Severe Thunderstorm Warning | PSR | 52 min |
| Sep 25, 8:08 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Sep 25, 8:10 PM MST | Dust Storm Advisory | PSR | 50 min |
| Sep 25, 8:32 PM MST | Special Weather Statement | PSR | 58 min |
| Sep 25, 8:45 PM MST | Flash Flood Warning | PSR | 4 hr |
| Sep 25, 9:05 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Sep 25, 9:06 PM MST | Special Weather Statement | PSR | 39 min |
| Sep 25, 9:29 PM MST | Flash Flood Warning | PSR | 4 hr |
| Sep 25, 10:20 PM MST | Special Weather Statement | PSR | 40 min |
| Sep 26, 2:29 AM MST | Special Weather Statement | PSR | 46 min |
| Sep 26, 4:03 AM MST | Special Weather Statement | PSR | 42 min |
| Sep 26, 4:09 AM MST | Areal Flood Advisory | PSR | 3 hr |
| Sep 26, 4:37 AM MST | Areal Flood Advisory | PSR | 3 hr |
| Sep 26, 9:08 AM MST | Special Weather Statement | PSR | 52 min |
| Sep 26, 10:53 AM MST | Special Weather Statement | PSR | 52 min |
| Sep 26, 11:10 AM MST | Severe Thunderstorm Warning | PSR | 20 min |
| Sep 26, 11:23 AM MST | Special Weather Statement | PSR | 52 min |
| Sep 26, 11:26 AM MST | Special Weather Statement | PSR | 34 min |
| Sep 26, 11:30 AM MST | Special Weather Statement | PSR | 45 min |
| Sep 26, 2:29 PM MST | Special Weather Statement | PSR | 31 min |
| Sep 26, 3:14 PM MST | Special Weather Statement | PSR | 31 min |
| Sep 26, 3:48 PM MST | Special Weather Statement | PSR | 42 min |
| Sep 26, 3:53 PM MST | Severe Thunderstorm Warning | PSR | 22 min |
| Sep 26, 4:32 PM MST | Special Weather Statement | PSR | 43 min |
| Sep 26, 4:34 PM MST | Special Weather Statement | PSR | 41 min |
| Sep 26, 5:14 PM MST | Special Weather Statement | PSR | 46 min |
| Sep 26, 5:33 PM MST | Special Weather Statement | PSR | 42 min |
| Sep 26, 6:35 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Sep 26, 6:53 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Sep 26, 7:03 PM MST | Flash Flood Warning | PSR | 3 hr |
| Sep 27, 3:56 AM MST | Areal Flood Advisory | PSR | 2 hr |
| Oct 30, 6:19 AM MST | Dust Storm Advisory | PSR | 56 min |
| Oct 30, 7:32 AM MST | Dust Storm Advisory | PSR | 58 min |
| Nov 6, 4:05 AM MST | Special Weather Statement | PSR | 40 min |
| Nov 6, 7:08 AM MST | Special Weather Statement | PSR | 52 min |
| Nov 18, 12:59 PM MST | Flash Flood Watch | PSR | 58 hr |
| Nov 19, 12:02 PM MST | Dust Storm Advisory | PSR | 43 min |
| Nov 19, 5:38 PM MST | Special Weather Statement | PSR | 37 min |
| Nov 19, 5:51 PM MST | Flash Flood Warning | PSR | 5 hr |
| Nov 20, 3:45 AM MST | Areal Flood Advisory | PSR | 2 hr |
| Nov 20, 3:47 AM MST | Areal Flood Advisory | PSR | 3 hr |
| Nov 20, 7:28 AM MST | Areal Flood Advisory | PSR | 3 hr |
| Nov 20, 7:56 AM MST | Areal Flood Advisory | PSR | 3 hr |
| Nov 20, 8:13 AM MST | Areal Flood Advisory | PSR | 3 hr |
| Nov 20, 8:32 AM MST | Flash Flood Warning | PSR | 3 hr |
| Nov 20, 8:38 AM MST | Flash Flood Warning | PSR | 3 hr |
| Nov 20, 12:07 PM MST | Special Weather Statement | PSR | 23 min |
| Nov 20, 12:23 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Nov 20, 12:29 PM MST | Flash Flood Warning | PSR | 9 hr |
| Nov 20, 3:19 PM MST | Flash Flood Warning | PSR | 8 hr |
| Nov 20, 3:55 PM MST | Special Weather Statement | PSR | 50 min |
| Nov 20, 4:00 PM MST | Special Weather Statement | PSR | 30 min |
| Nov 20, 5:01 PM MST | Special Weather Statement | PSR | 44 min |
| Nov 20, 5:16 PM MST | Special Weather Statement | PSR | 44 min |
| Nov 20, 6:49 PM MST | Flash Flood Warning | PSR | 4 hr |
| Nov 21, 10:35 AM MST | Special Weather Statement | PSR | 25 min |
| Nov 21, 10:53 AM MST | Flash Flood Warning | PSR | 3 hr |
| Nov 21, 12:19 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Nov 21, 1:35 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Nov 21, 2:12 PM MST | Special Weather Statement | PSR | 48 min |
| Nov 21, 2:23 PM MST | Special Weather Statement | PSR | 52 min |
| Nov 21, 2:37 PM MST | Severe Thunderstorm Warning | PSR | 23 min |
| Nov 21, 3:01 PM MST | Severe Thunderstorm Warning | PSR | 44 min |
| Nov 21, 3:20 PM MST | Special Weather Statement | PSR | 40 min |
| Nov 21, 3:26 PM MST | Mesoscale Discussion | SPC | 94 min |
| Nov 21, 3:42 PM MST | Severe Thunderstorm Warning | PSR | 48 min |
| Nov 21, 4:06 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Nov 21, 4:32 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Nov 21, 5:09 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Nov 25, 1:28 PM MST | Winter Storm Watch | PSR | 48 hr |
| Nov 26, 2:07 PM MST | Flash Flood Watch | PSR | 3 days |
| Nov 27, 4:02 AM MST | Wind Advisory | PSR | 60 hr |
| Nov 27, 4:13 AM MST | Winter Storm Warning | PSR | 68 hr |
| Nov 29, 12:04 AM MST | Flash Flood Warning | PSR | 5 hr |
| Nov 29, 1:24 AM MST | Flash Flood Warning | PSR | 7 hr |
| Nov 29, 2:01 AM MST | Flash Flood Warning | PSR | 5 hr |
| Nov 29, 2:34 AM MST | Severe Thunderstorm Warning | PSR | 26 min |
| Nov 29, 2:42 AM MST | Flash Flood Warning | PSR | 6 hr |
| Nov 29, 2:55 AM MST | Areal Flood Advisory | PSR | 3 hr |
| Nov 29, 3:27 AM MST | Flash Flood Warning | PSR | 5 hr |
| Nov 29, 3:45 AM MST | Severe Thunderstorm Warning | PSR | 30 min |
| Nov 29, 4:01 AM MST | Tornado Warning | PSR | 14 min |
| Nov 29, 4:18 AM MST | Areal Flood Advisory | PSR | 3 hr |
| Nov 29, 4:41 AM MST | Severe Thunderstorm Warning | PSR | 34 min |
| Nov 29, 4:44 AM MST | Tornado Warning | PSR | 12 min |
| Nov 29, 4:57 AM MST | Areal Flood Warning | PSR | 6 hr |
| Nov 29, 5:07 AM MST | Flash Flood Warning | PSR | 6 hr |
| Nov 29, 5:12 AM MST | Areal Flood Advisory | PSR | 3 hr |
| Nov 29, 7:12 AM MST | Areal Flood Advisory | PSR | 3 hr |
| Nov 29, 8:10 AM MST | Areal Flood Warning | PSR | 6 hr |
| Nov 29, 8:33 AM MST | Areal Flood Warning | PSR | 6 hr |
| Nov 29, 11:14 AM MST | Areal Flood Warning | PSR | 3 hr |
| Dec 9, 4:01 AM MST | Dense Fog Advisory | PSR | 5 hr |
| Dec 9, 12:31 PM MST | Special Weather Statement | PSR | 44 min |
| Dec 9, 12:53 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Dec 9, 1:43 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Dec 9, 2:07 PM MST | Special Weather Statement | PSR | 38 min |
| Dec 9, 2:11 PM MST | Severe Thunderstorm Warning | PSR | 34 min |
| Dec 9, 2:16 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Dec 9, 2:34 PM MST | Severe Thunderstorm Warning | PSR | 56 min |
| Dec 9, 2:47 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Dec 9, 3:07 PM MST | Special Weather Statement | PSR | 53 min |
| Dec 9, 3:23 PM MST | Severe Thunderstorm Warning | PSR | 67 min |
| Dec 9, 3:25 PM MST | Special Weather Statement | PSR | 50 min |
| Dec 9, 3:30 PM MST | Areal Flood Advisory | PSR | 3 hr |
| Dec 9, 4:23 PM MST | Special Weather Statement | PSR | 67 min |
| Dec 10, 6:04 AM MST | Dense Fog Advisory | PSR | 3 hr |
| Dec 16, 12:19 PM MST | Freeze Warning | PSR | 21 hr |
| Dec 26, 2:34 AM MST | Winter Weather Advisory | PSR | 66 hr |
| Dec 27, 2:12 PM MST | Freeze Watch | PSR | 13 hr |
| Dec 28, 2:43 AM MST | Freeze Warning | PSR | 30 hr |
| Dec 28, 3:45 AM MST | Dense Fog Advisory | PSR | 4 hr |
| Dec 28, 7:57 AM MST | Dense Fog Advisory | PSR | 109 min |
| Dec 29, 7:48 AM MST | Dense Fog Advisory | PSR | 72 min |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
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.