Alert archive / Arkansas / Washington County
Weather alerts in Washington County, Arkansas, 2011
287 weather alerts in 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Washington County and its neighbors
Each county as a circle sized by its count in 2011. Tap one for its archive.
- Alerts
- 287
- Warnings
- 124
- Watches
- 39
- Advisories
- 29
- Busiest month
- April89 alerts
- Busiest day
- May 23, 201123 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
2 of 9 tornado warnings covering Washington County in 2011 had a tornado report inside them.
Washington County, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 9 | 2 | 78% | 0 | ||
| Severe thunderstorm warnings | 68 | 35 | 49% | 23 | 91% | 23 min |
| Flash flood warnings | 18 | 8 | 56% | 12 | 100% | 143 min |
Each office's whole area, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Tulsa, OK: tornado warnings | 119 | 32 | 73% | 44 | 80% | 21 min |
| NWS Tulsa, OK: severe thunderstorm warnings | 568 | 280 | 51% | 629 | 77% | 26 min |
| NWS Tulsa, OK: flash flood warnings | 72 | 23 | 68% | 94 | 95% | 122 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, Central Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 9, 3:38 AM CST | Winter Weather Advisory | TSA | 44 hr |
| Jan 11, 4:06 AM CST | Wind Chill Advisory | TSA | 32 hr |
| Jan 18, 3:34 PM CST | Winter Weather Advisory | TSA | 46 hr |
| Jan 19, 3:29 AM CST | Winter Storm Warning | TSA | 34 hr |
| Jan 29, 3:53 PM CST | Winter Storm Watch | TSA | 24 hr |
| Jan 30, 3:38 PM CST | Winter Storm Warning | TSA | 51 hr |
| Jan 31, 10:36 PM CST | Mesoscale Discussion | SPC | 5 hr |
| Feb 1, 6:54 AM CST | Mesoscale Discussion | SPC | 5 hr |
| Feb 1, 4:51 PM CST | Wind Chill Advisory | TSA | 43 hr |
| Feb 4, 5:19 AM CST | Winter Weather Advisory | TSA | 6 hr |
| Feb 4, 11:31 AM CST | Winter Storm Warning | TSA | 16 hr |
| Feb 7, 1:22 AM CST | Winter Storm Watch | TSA | 14 hr |
| Feb 7, 3:21 PM CST | Winter Storm Warning | TSA | 46 hr |
| Feb 9, 3:29 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Feb 9, 1:39 PM CST | Wind Chill Advisory | TSA | 21 hr |
| Feb 24, 11:25 AM CST | Tornado Watch | SPC | 9 hr |
| Feb 27, 4:57 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 27, 8:07 PM CST | Mesoscale Discussion | SPC | 53 min |
| Feb 27, 10:04 PM CST | Tornado Watch | SPC | 6 hr |
| Feb 27, 10:39 PM CST | Severe Thunderstorm Warning | TSA | 51 min |
| Feb 27, 11:00 PM CST | Severe Thunderstorm Warning | TSA | 30 min |
| Feb 27, 11:28 PM CST | Severe Thunderstorm Warning | TSA | 47 min |
| Feb 27, 11:37 PM CST | Areal Flood Advisory | TSA | 113 min |
| Feb 27, 11:49 PM CST | Mesoscale Discussion | SPC | 86 min |
| Mar 4, 3:55 PM CST | Mesoscale Discussion | SPC | 95 min |
| Mar 4, 6:50 PM CST | Severe Thunderstorm Watch | SPC | 7 hr |
| Mar 4, 7:17 PM CST | Special Weather Statement | TSA | 28 min |
| Mar 11, 3:25 AM CST | Red Flag Warning | TSA | 17 hr |
| Mar 13, 11:15 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 25, 10:50 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Mar 25, 11:40 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Mar 26, 3:23 AM CDT | Severe Thunderstorm Warning | TSA | 29 min |
| Mar 26, 3:40 AM CDT | Freeze Watch | TSA | 17 hr |
| Mar 26, 4:11 AM CDT | Special Weather Statement | TSA | 49 min |
| Mar 27, 3:32 AM CDT | Freeze Watch | TSA | 12 hr |
| Mar 27, 3:45 PM CDT | Freeze Warning | TSA | 17 hr |
| Apr 2, 4:02 PM CDT | Wind Advisory | TSA | 48 hr |
| Apr 3, 9:51 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Apr 4, 3:59 PM CDT | Freeze Warning | TSA | 17 hr |
| Apr 6, 4:11 AM CDT | Red Flag Warning | TSA | 15 hr |
| Apr 6, 9:06 AM CDT | Wind Advisory | TSA | 6 hr |
| Apr 9, 1:52 AM CDT | Mesoscale Discussion | SPC | 53 min |
| Apr 10, 7:28 PM CDT | Tornado Watch | SPC | 8 hr |
| Apr 10, 8:52 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Apr 10, 10:24 PM CDT | Severe Thunderstorm Warning | TSA | 51 min |
| Apr 10, 10:55 PM CDT | Severe Thunderstorm Warning | TSA | 29 min |
| Apr 10, 11:44 PM CDT | Severe Thunderstorm Warning | TSA | 46 min |
| Apr 11, 12:27 AM CDT | Severe Thunderstorm Warning | TSA | 33 min |
| Apr 11, 2:04 AM CDT | Mesoscale Discussion | SPC | 56 min |
| Apr 14, 7:33 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Apr 14, 9:06 PM CDT | Tornado Watch | SPC | 6 hr |
| Apr 14, 11:11 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Apr 19, 1:40 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Apr 19, 2:16 PM CDT | Tornado Watch | SPC | 10 hr |
| Apr 19, 4:19 PM CDT | Severe Thunderstorm Warning | TSA | 56 min |
| Apr 19, 5:01 PM CDT | Severe Thunderstorm Warning | TSA | 59 min |
| Apr 19, 5:05 PM CDT | Tornado Warning | TSA | 25 min |
| Apr 19, 6:06 PM CDT | Severe Thunderstorm Warning | TSA | 24 min |
| Apr 21, 1:06 PM CDT | Severe Thunderstorm Warning | TSA | 39 min |
| Apr 21, 1:40 PM CDT | Severe Thunderstorm Warning | TSA | 50 min |
| Apr 21, 1:54 PM CDT | Severe Thunderstorm Warning | TSA | 51 min |
| Apr 21, 2:18 PM CDT | Severe Thunderstorm Warning | TSA | 57 min |
| Apr 21, 2:25 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Apr 21, 2:35 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 21, 2:56 PM CDT | Severe Thunderstorm Warning | TSA | 34 min |
| Apr 21, 3:26 PM CDT | Severe Thunderstorm Warning | TSA | 24 min |
| Apr 21, 6:13 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Apr 22, 10:44 AM CDT | Mesoscale Discussion | SPC | 61 min |
| Apr 22, 1:23 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Apr 22, 3:47 PM CDT | Tornado Watch | SPC | 8 hr |
| Apr 22, 8:09 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Apr 22, 8:26 PM CDT | Severe Thunderstorm Warning | TSA | 13 min |
| Apr 22, 9:39 PM CDT | Mesoscale Discussion | SPC | 66 min |
| Apr 22, 11:04 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 22, 11:10 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 23, 2:33 AM CDT | Mesoscale Discussion | SPC | 87 min |
| Apr 23, 5:06 AM CDT | Mesoscale Discussion | SPC | 24 min |
| Apr 23, 3:25 PM CDT | Special Weather Statement | TSA | 35 min |
| Apr 23, 3:40 PM CDT | Flash Flood Watch | TSA | 4 days |
| Apr 23, 3:43 PM CDT | Areal Flood Advisory | TSA | 92 min |
| Apr 23, 5:02 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Apr 23, 5:08 PM CDT | Severe Thunderstorm Warning | TSA | 29 min |
| Apr 23, 5:38 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 23, 5:51 PM CDT | Special Weather Statement | TSA | 39 min |
| Apr 23, 6:00 PM CDT | Severe Thunderstorm Warning | TSA | 60 min |
| Apr 23, 6:09 PM CDT | Flash Flood Warning | TSA | 10 hr |
| Apr 23, 10:15 PM CDT | Flash Flood Warning | TSA | 6 hr |
| Apr 23, 10:40 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Apr 23, 10:51 PM CDT | Special Weather Statement | TSA | 54 min |
| Apr 23, 10:57 PM CDT | Severe Thunderstorm Warning | TSA | 63 min |
| Apr 23, 11:50 PM CDT | Severe Thunderstorm Warning | TSA | 42 min |
| Apr 24, 12:16 AM CDT | Special Weather Statement | TSA | 44 min |
| Apr 24, 3:49 AM CDT | Areal Flood Warning | TSA | 8 hr |
| Apr 24, 9:51 AM CDT | Flash Flood Warning | TSA | 4 hr |
| Apr 24, 2:05 PM CDT | Flash Flood Warning | TSA | 6 hr |
| Apr 24, 5:34 PM CDT | Mesoscale Discussion | SPC | 26 min |
| Apr 24, 7:55 PM CDT | Flash Flood Warning | TSA | 6 hr |
| Apr 25, 1:55 AM CDT | Areal Flood Warning | TSA | 6 hr |
| Apr 25, 8:04 AM CDT | Areal Flood Warning | TSA | 8 hr |
| Apr 25, 10:43 AM CDT | Severe Thunderstorm Warning | TSA | 27 min |
| Apr 25, 10:49 AM CDT | Flash Flood Warning | TSA | 3 hr |
| Apr 25, 11:00 AM CDT | Tornado Watch | SPC | 7 hr |
| Apr 25, 1:05 PM CDT | Flash Flood Warning | TSA | 6 hr |
| Apr 25, 1:50 PM CDT | Special Weather Statement | TSA | 40 min |
| Apr 25, 2:50 PM CDT | Special Weather Statement | TSA | 25 min |
| Apr 25, 2:58 PM CDT | Severe Thunderstorm Warning | TSA | 47 min |
| Apr 25, 3:21 PM CDT | Severe Thunderstorm Warning | TSA | 24 min |
| Apr 25, 6:57 PM CDT | Areal Flood Warning | TSA | 17 hr |
| Apr 26, 11:58 AM CDT | Areal Flood Warning | TSA | 12 hr |
| Apr 26, 5:00 PM CDT | Mesoscale Discussion | SPC | 30 min |
| Apr 26, 5:11 PM CDT | Flash Flood Warning | TSA | 4 hr |
| Apr 26, 5:17 PM CDT | Special Weather Statement | TSA | 43 min |
| Apr 26, 5:28 PM CDT | Severe Thunderstorm Warning | TSA | 47 min |
| Apr 26, 5:37 PM CDT | Severe Thunderstorm Warning | TSA | 38 min |
| Apr 26, 5:42 PM CDT | Flash Flood Warning | TSA | 4 hr |
| Apr 26, 5:43 PM CDT | Severe Thunderstorm Warning | TSA | 32 min |
| Apr 26, 5:50 PM CDT | Severe Thunderstorm Warning | TSA | 28 min |
| Apr 26, 6:17 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Apr 26, 11:51 PM CDT | Areal Flood Warning | TSA | 12 hr |
| Apr 27, 8:17 AM CDT | Special Weather Statement | TSA | 28 min |
| Apr 27, 8:24 AM CDT | Severe Thunderstorm Warning | TSA | 28 min |
| Apr 27, 8:40 AM CDT | Mesoscale Discussion | SPC | 65 min |
| Apr 27, 12:00 PM CDT | Areal Flood Warning | TSA | 48 hr |
| Apr 27, 12:43 PM CDT | Flash Flood Warning | TSA | 4 hr |
| Apr 30, 3:19 AM CDT | Flash Flood Watch | TSA | 65 hr |
| May 1, 11:58 AM CDT | Areal Flood Warning | TSA | 24 hr |
| May 1, 6:13 PM CDT | Flash Flood Warning | TSA | 6 hr |
| May 2, 11:53 AM CDT | Areal Flood Warning | TSA | 9 hr |
| May 2, 2:56 PM CDT | Frost Advisory | TSA | 18 hr |
| May 3, 6:25 AM CDT | Dense Fog Advisory | TSA | 4 hr |
| May 6, 2:22 AM CDT | Dense Fog Advisory | TSA | 5 hr |
| May 7, 4:11 AM CDT | Severe Thunderstorm Warning | TSA | 34 min |
| May 11, 1:16 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 11, 6:30 PM CDT | Severe Thunderstorm Warning | TSA | 60 min |
| May 11, 6:35 PM CDT | Mesoscale Discussion | SPC | 55 min |
| May 11, 6:57 PM CDT | Severe Thunderstorm Warning | TSA | 33 min |
| May 11, 7:25 PM CDT | Severe Thunderstorm Warning | TSA | 44 min |
| May 12, 1:46 PM CDT | Mesoscale Discussion | SPC | 119 min |
| May 12, 3:17 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 12, 6:13 PM CDT | Severe Thunderstorm Warning | TSA | 47 min |
| May 12, 6:18 PM CDT | Severe Thunderstorm Warning | TSA | 42 min |
| May 12, 6:30 PM CDT | Mesoscale Discussion | SPC | 90 min |
| May 12, 6:30 PM CDT | Severe Thunderstorm Warning | TSA | 45 min |
| May 12, 6:39 PM CDT | Areal Flood Advisory | TSA | 66 min |
| May 12, 6:52 PM CDT | Severe Thunderstorm Warning | TSA | 28 min |
| May 12, 7:08 PM CDT | Severe Thunderstorm Warning | TSA | 67 min |
| May 12, 7:12 PM CDT | Severe Thunderstorm Warning | TSA | 20 min |
| May 12, 7:49 PM CDT | Areal Flood Advisory | TSA | 56 min |
| May 12, 8:57 PM CDT | Areal Flood Advisory | TSA | 108 min |
| May 20, 8:07 AM CDT | Special Weather Statement | TSA | 23 min |
| May 20, 8:32 AM CDT | Special Weather Statement | TSA | 58 min |
| May 20, 9:08 AM CDT | Severe Thunderstorm Warning | TSA | 67 min |
| May 20, 9:11 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 20, 10:30 AM CDT | Mesoscale Discussion | SPC | 60 min |
| May 20, 11:03 AM CDT | Tornado Watch | SPC | 7 hr |
| May 20, 11:12 AM CDT | Flash Flood Watch | TSA | 16 hr |
| May 20, 11:16 AM CDT | Special Weather Statement | TSA | 59 min |
| May 20, 11:19 AM CDT | Special Weather Statement | TSA | 26 min |
| May 20, 11:39 AM CDT | Flash Flood Warning | TSA | 3 hr |
| May 20, 11:54 AM CDT | Severe Thunderstorm Warning | TSA | 66 min |
| May 20, 12:56 PM CDT | Severe Thunderstorm Warning | TSA | 94 min |
| May 20, 1:28 PM CDT | Mesoscale Discussion | SPC | 62 min |
| May 20, 5:52 PM CDT | Areal Flood Advisory | TSA | 53 min |
| May 22, 1:27 PM CDT | Tornado Watch | SPC | 8 hr |
| May 22, 3:48 PM CDT | Mesoscale Discussion | SPC | 117 min |
| May 22, 6:10 PM CDT | Mesoscale Discussion | SPC | 65 min |
| May 22, 7:52 PM CDT | Mesoscale Discussion | SPC | 53 min |
| May 22, 8:09 PM CDT | Severe Thunderstorm Warning | TSA | 66 min |
| May 22, 8:16 PM CDT | Tornado Warning | TSA | 29 min |
| May 22, 8:45 PM CDT | Tornado Warning | TSA | 45 min |
| May 22, 8:47 PM CDT | Tornado Watch | SPC | 7 hr |
| May 22, 9:19 PM CDT | Flash Flood Warning | TSA | 6 hr |
| May 22, 10:50 PM CDT | Severe Thunderstorm Warning | TSA | 40 min |
| May 22, 11:12 PM CDT | Tornado Warning | TSA | 33 min |
| May 22, 11:36 PM CDT | Severe Thunderstorm Warning | TSA | 39 min |
| May 22, 11:46 PM CDT | Mesoscale Discussion | SPC | 89 min |
| May 23, 3:31 AM CDT | Areal Flood Warning | TSA | 6 hr |
| May 23, 5:07 AM CDT | Mesoscale Discussion | SPC | 113 min |
| May 23, 12:12 PM CDT | Mesoscale Discussion | SPC | 93 min |
| May 23, 12:26 PM CDT | Flash Flood Warning | TSA | 4 hr |
| May 23, 1:03 PM CDT | Special Weather Statement | TSA | 27 min |
| May 23, 1:28 PM CDT | Severe Thunderstorm Warning | TSA | 47 min |
| May 23, 2:15 PM CDT | Severe Thunderstorm Warning | TSA | 60 min |
| May 23, 2:22 PM CDT | Flash Flood Warning | TSA | 4 hr |
| May 23, 3:06 PM CDT | Special Weather Statement | TSA | 24 min |
| May 23, 3:20 PM CDT | Flash Flood Watch | TSA | 34 hr |
| May 23, 5:07 PM CDT | Mesoscale Discussion | SPC | 23 min |
| May 23, 5:24 PM CDT | Tornado Watch | SPC | 4 hr |
| May 23, 6:17 PM CDT | Flash Flood Warning | TSA | 6 hr |
| May 23, 7:59 PM CDT | Severe Thunderstorm Warning | TSA | 46 min |
| May 23, 8:39 PM CDT | Severe Thunderstorm Warning | TSA | 51 min |
| May 23, 10:42 PM CDT | Flash Flood Warning | TSA | 3 hr |
| May 24, 12:07 AM CDT | Areal Flood Warning | TSA | 12 hr |
| May 24, 11:55 AM CDT | Areal Flood Warning | TSA | 48 hr |
| May 24, 7:42 PM CDT | Mesoscale Discussion | SPC | 63 min |
| May 24, 8:05 PM CDT | Tornado Watch | SPC | 7 hr |
| May 24, 10:25 PM CDT | Severe Thunderstorm Warning | TSA | 65 min |
| May 24, 10:34 PM CDT | Tornado Warning | TSA | 26 min |
| May 24, 10:54 PM CDT | Tornado Warning | TSA | 36 min |
| May 24, 11:03 PM CDT | Tornado Warning | TSA | 42 min |
| May 24, 11:14 PM CDT | Flash Flood Warning | TSA | 3 hr |
| May 24, 11:28 PM CDT | Severe Thunderstorm Warning | TSA | 92 min |
| May 24, 11:56 PM CDT | Tornado Warning | TSA | 38 min |
| Jun 11, 6:28 PM CDT | Severe Thunderstorm Warning | TSA | 47 min |
| Jun 14, 5:27 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 14, 11:04 PM CDT | Severe Thunderstorm Warning | TSA | 41 min |
| Jun 14, 11:11 PM CDT | Severe Thunderstorm Warning | TSA | 49 min |
| Jun 16, 7:11 AM CDT | Special Weather Statement | TSA | 49 min |
| Jun 16, 10:23 AM CDT | Wind Advisory | TSA | 4 hr |
| Jun 16, 12:26 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 16, 5:17 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Jun 20, 9:46 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 21, 1:51 AM CDT | Special Weather Statement | TSA | 24 min |
| Jun 21, 1:56 AM CDT | Severe Thunderstorm Warning | TSA | 49 min |
| Jun 21, 3:15 AM CDT | Mesoscale Discussion | SPC | 60 min |
| Jun 24, 3:51 AM CDT | Special Weather Statement | TSA | 24 min |
| Jun 28, 4:08 AM CDT | Mesoscale Discussion | SPC | 82 min |
| Jun 30, 12:47 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 2, 5:21 PM CDT | Special Weather Statement | TSA | 39 min |
| Jul 2, 5:31 PM CDT | Severe Thunderstorm Warning | TSA | 29 min |
| Jul 7, 1:54 PM CDT | Mesoscale Discussion | SPC | 66 min |
| Jul 9, 3:36 AM CDT | Heat Advisory | TSA | 5 days |
| Jul 14, 4:11 AM CDT | Excessive Heat Warning | TSA | 28 days |
| Jul 14, 6:30 PM CDT | Special Weather Statement | TSA | 30 min |
| Jul 19, 3:56 AM CDT | Heat Advisory | TSA | 6 days |
| Jul 25, 4:38 AM CDT | Heat Advisory | TSA | 8 days |
| Jul 29, 4:06 AM CDT | Excessive Heat Watch | TSA | 11 days |
| Jul 30, 12:35 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Jul 30, 6:24 PM CDT | Severe Thunderstorm Warning | TSA | 66 min |
| Jul 30, 6:42 PM CDT | Severe Thunderstorm Warning | TSA | 48 min |
| Jul 31, 3:58 AM CDT | Excessive Heat Watch | TSA | 9 days |
| Jul 31, 3:45 PM CDT | Special Weather Statement | TSA | 45 min |
| Jul 31, 4:18 PM CDT | Severe Thunderstorm Warning | TSA | 27 min |
| Aug 2, 6:11 PM CDT | Special Weather Statement | TSA | 34 min |
| Aug 3, 2:29 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Aug 4, 2:10 AM CDT | Mesoscale Discussion | SPC | 80 min |
| Aug 8, 2:04 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Aug 8, 2:34 PM CDT | Severe Thunderstorm Warning | TSA | 45 min |
| Aug 8, 2:59 PM CDT | Severe Thunderstorm Warning | TSA | 61 min |
| Aug 8, 7:34 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Aug 8, 7:53 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 8, 9:24 PM CDT | Severe Thunderstorm Warning | TSA | 66 min |
| Aug 8, 11:00 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 9, 2:21 AM CDT | Mesoscale Discussion | SPC | 84 min |
| Aug 10, 2:36 AM CDT | Mesoscale Discussion | SPC | 84 min |
| Aug 10, 3:15 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 10, 3:48 AM CDT | Severe Thunderstorm Warning | TSA | 57 min |
| Aug 10, 7:23 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Aug 10, 8:34 PM CDT | Special Weather Statement | TSA | 26 min |
| Aug 10, 9:13 PM CDT | Special Weather Statement | TSA | 32 min |
| Aug 10, 9:14 PM CDT | Special Weather Statement | TSA | 31 min |
| Aug 12, 2:43 PM CDT | Severe Thunderstorm Warning | TSA | 22 min |
| Aug 12, 3:16 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 12, 5:45 PM CDT | Severe Thunderstorm Warning | TSA | 60 min |
| Aug 13, 12:18 AM CDT | Special Weather Statement | TSA | 42 min |
| Aug 16, 11:00 AM CDT | Special Weather Statement | TSA | 45 min |
| Aug 18, 11:46 PM CDT | Mesoscale Discussion | SPC | 59 min |
| Aug 19, 12:02 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 19, 1:38 AM CDT | Mesoscale Discussion | SPC | 67 min |
| Aug 19, 3:45 PM CDT | Heat Advisory | TSA | 28 hr |
| Aug 20, 3:56 PM CDT | Mesoscale Discussion | SPC | 64 min |
| Aug 23, 10:57 AM CDT | Heat Advisory | TSA | 32 hr |
| Sep 18, 2:45 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 18, 3:30 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Sep 18, 5:42 PM CDT | Tornado Warning | TSA | 48 min |
| Sep 18, 6:48 PM CDT | Mesoscale Discussion | SPC | 57 min |
| Sep 18, 7:02 PM CDT | Areal Flood Advisory | TSA | 118 min |
| Sep 23, 2:14 AM CDT | Dense Fog Advisory | TSA | 7 hr |
| Oct 17, 5:23 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 18, 4:10 PM CDT | Freeze Watch | TSA | 12 hr |
| Oct 19, 3:50 AM CDT | Freeze Warning | TSA | 29 hr |
| Oct 20, 4:07 PM CDT | Freeze Warning | TSA | 17 hr |
| Oct 27, 3:58 PM CDT | Freeze Warning | TSA | 12 hr |
| Oct 28, 3:46 PM CDT | Freeze Warning | TSA | 17 hr |
| Nov 3, 4:16 AM CDT | Freeze Warning | TSA | 30 hr |
| Nov 8, 1:17 AM CST | Mesoscale Discussion | SPC | 118 min |
| Nov 8, 2:59 AM CST | Special Weather Statement | TSA | 61 min |
| Nov 8, 10:43 AM CST | Severe Thunderstorm Warning | TSA | 47 min |
| Nov 8, 2:02 PM CST | Areal Flood Advisory | TSA | 2 hr |
| Nov 8, 3:00 PM CST | Severe Thunderstorm Warning | TSA | 12 min |
| Nov 9, 3:18 PM CST | Freeze Warning | TSA | 17 hr |
| Nov 11, 12:18 PM CST | Wind Advisory | TSA | 30 hr |
| Nov 16, 3:37 PM CST | Freeze Warning | TSA | 18 hr |
| Nov 20, 3:51 AM CST | Flash Flood Watch | TSA | 47 hr |
| Nov 21, 10:13 PM CST | Areal Flood Advisory | TSA | 4 hr |
| Nov 24, 2:16 AM CST | Dense Fog Advisory | TSA | 7 hr |
| Dec 31, 3:39 AM CST | Red Flag Warning | TSA | 14 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 | 68 |
| Tornado Warning | 9 |
| Severe Thunderstorm Watch | 15 |
| Tornado Watch | 12 |
| Mesoscale Discussion | 66 |
| Special Weather Statement | 29 |
| Flooding | |
| Areal Flood Warning | 12 |
| Flash Flood Warning | 18 |
| Flash Flood Watch | 5 |
| Areal Flood Advisory | 9 |
| Winter | |
| Winter Storm Warning | 4 |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 3 |
| Heat | |
| Excessive Heat Warning | 1 |
| Excessive Heat Watch | 2 |
| Heat Advisory | 5 |
| Cold | |
| Freeze Warning | 9 |
| Freeze Watch | 3 |
| Frost Advisory | 1 |
| Wind Chill Advisory | 3 |
| Wind and dust | |
| Wind Advisory | 4 |
| Fire | |
| Red Flag Warning | 3 |
| Fog and smoke | |
| Dense Fog Advisory | 4 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20102012
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.