Alert archive / Iowa / Worth County
Weather alerts in Worth County, Iowa, 2014
132 weather alerts in 2014, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Worth County and its neighbors
Each county as a circle sized by its count in 2014. Tap one for its archive.
- Alerts
- 132
- Warnings
- 22
- Watches
- 21
- Advisories
- 61
- Busiest month
- June30 alerts
- Busiest day
- June 16, 20148 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
3 of 4 tornado warnings covering Worth County in 2014 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 7 minutes after it went out.
Worth County, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 4 | 3 | 25% | 1 | 100% | 7 min |
| Severe thunderstorm warnings | 8 | 2 | 75% | 0 | ||
| Flash flood warnings | 1 | 1 | 0% | 0 |
Each office's whole area, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Des Moines, IA: tornado warnings | 57 | 15 | 74% | 46 | 48% | 12 min |
| NWS Des Moines, IA: severe thunderstorm warnings | 301 | 149 | 50% | 487 | 85% | 25 min |
| NWS Des Moines, IA: flash flood warnings | 62 | 29 | 53% | 69 | 84% | 111 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 |
|---|---|---|---|
| Dec 31, 9:33 PM CST | Wind Chill Advisory | DMX | 11 hr |
| Jan 1, 3:26 PM CST | Wind Chill Advisory | DMX | 21 hr |
| Jan 2, 4:16 PM CST | Wind Chill Advisory | DMX | 17 hr |
| Jan 3, 11:22 AM CST | Winter Weather Advisory | DMX | 7 hr |
| Jan 3, 3:36 PM CST | Wind Chill Watch | DMX | 13 hr |
| Jan 4, 4:14 AM CST | Wind Chill Warning | DMX | 72 hr |
| Jan 6, 3:39 PM CST | Wind Chill Advisory | DMX | 17 hr |
| Jan 8, 3:41 PM CST | Wind Chill Advisory | DMX | 12 hr |
| Jan 13, 3:07 PM CST | Wind Advisory | DMX | 27 hr |
| Jan 14, 3:30 AM CST | Winter Weather Advisory | DMX | 15 hr |
| Jan 15, 3:51 AM CST | Winter Weather Advisory | DMX | 41 hr |
| Jan 16, 8:26 PM CST | Wind Chill Advisory | DMX | 13 hr |
| Jan 17, 3:52 PM CST | Winter Weather Advisory | DMX | 24 hr |
| Jan 20, 3:42 AM CST | Wind Chill Advisory | DMX | 32 hr |
| Jan 22, 4:07 AM CST | Wind Chill Warning | DMX | 32 hr |
| Jan 22, 4:07 AM CST | Wind Chill Advisory | DMX | 44 hr |
| Jan 22, 4:07 AM CST | Winter Weather Advisory | DMX | 17 hr |
| Jan 24, 3:30 PM CST | Blizzard Watch | DMX | 24 hr |
| Jan 25, 3:55 PM CST | Blizzard Warning | DMX | 32 hr |
| Jan 25, 3:55 PM CST | Winter Weather Advisory | DMX | 10 hr |
| Jan 26, 4:45 AM CST | Wind Chill Warning | DMX | 53 hr |
| Jan 28, 3:57 AM CST | Wind Chill Advisory | DMX | 14 hr |
| Jan 29, 3:33 PM CST | Winter Weather Advisory | DMX | 23 hr |
| Feb 1, 3:00 PM CST | Wind Chill Advisory | DMX | 19 hr |
| Feb 4, 9:32 PM CST | Wind Chill Advisory | DMX | 11 hr |
| Feb 5, 3:18 PM CST | Wind Chill Advisory | DMX | 21 hr |
| Feb 6, 3:33 PM CST | Wind Chill Advisory | DMX | 17 hr |
| Feb 8, 3:31 PM CST | Wind Chill Advisory | DMX | 19 hr |
| Feb 9, 3:40 AM CST | Wind Chill Advisory | DMX | 31 hr |
| Feb 15, 10:19 AM CST | Winter Weather Advisory | DMX | 5 hr |
| Feb 16, 4:52 AM CST | Winter Weather Advisory | DMX | 31 hr |
| Feb 17, 3:29 AM CST | Mesoscale Discussion | SPC | 3 hr |
| Feb 18, 4:06 AM CST | Blizzard Watch | DMX | 36 hr |
| Feb 19, 4:54 AM CST | Blizzard Warning | DMX | 49 hr |
| Feb 20, 11:20 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Feb 25, 3:54 AM CST | Wind Chill Advisory | DMX | 31 hr |
| Feb 26, 3:55 AM CST | Winter Weather Advisory | DMX | 23 hr |
| Feb 26, 4:06 PM CST | Wind Chill Advisory | DMX | 19 hr |
| Feb 27, 3:56 PM CST | Wind Chill Advisory | DMX | 16 hr |
| Feb 28, 4:26 PM CST | Wind Chill Advisory | DMX | 63 hr |
| Mar 1, 3:36 PM CST | Wind Chill Warning | DMX | 20 hr |
| Mar 4, 2:15 PM CST | Winter Weather Advisory | DMX | 13 hr |
| Mar 6, 5:22 PM CST | Winter Weather Advisory | DMX | 7 hr |
| Mar 20, 6:15 AM CDT | Dense Fog Advisory | DMX | 5 hr |
| Mar 26, 3:37 AM CDT | Wind Advisory | DMX | 16 hr |
| Mar 31, 3:58 AM CDT | Wind Advisory | DMX | 27 hr |
| Mar 31, 3:52 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Apr 2, 4:24 AM CDT | Winter Storm Watch | DMX | 24 hr |
| Apr 3, 4:33 AM CDT | Winter Weather Advisory | DMX | 31 hr |
| Apr 9, 3:56 AM CDT | Red Flag Warning | DMX | 15 hr |
| Apr 12, 2:30 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 13, 3:44 PM CDT | Wind Advisory | DMX | 8 hr |
| Apr 27, 4:18 AM CDT | Wind Advisory | DMX | 17 hr |
| May 7, 5:35 PM CDT | Mesoscale Discussion | SPC | 85 min |
| May 8, 3:12 AM CDT | Severe Thunderstorm Warning | DMX | 48 min |
| May 8, 12:23 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 8, 1:46 PM CDT | Tornado Watch | SPC | 7 hr |
| May 8, 5:41 PM CDT | Severe Thunderstorm Warning | DMX | 19 min |
| May 8, 5:56 PM CDT | Mesoscale Discussion | SPC | 94 min |
| May 11, 3:32 PM CDT | Flash Flood Watch | DMX | 15 hr |
| May 16, 3:21 PM CDT | Frost Advisory | DMX | 16 hr |
| Jun 1, 12:45 PM CDT | Special Weather Statement | DMX | 2 hr |
| Jun 1, 1:49 PM CDT | Tornado Warning | DMX | 26 min |
| Jun 1, 1:50 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Jun 1, 2:31 PM CDT | Tornado Warning | DMX | 29 min |
| Jun 1, 2:57 PM CDT | Flash Flood Watch | DMX | 8 hr |
| Jun 14, 3:47 PM CDT | Flash Flood Watch | DMX | 13 hr |
| Jun 16, 10:19 AM CDT | Mesoscale Discussion | SPC | 116 min |
| Jun 16, 3:28 PM CDT | Flash Flood Watch | DMX | 12 hr |
| Jun 16, 5:37 PM CDT | Tornado Watch | SPC | 6 hr |
| Jun 16, 5:51 PM CDT | Severe Thunderstorm Warning | DMX | 54 min |
| Jun 16, 6:33 PM CDT | Tornado Warning | DMX | 27 min |
| Jun 16, 6:35 PM CDT | Flash Flood Warning | DMX | 9 hr |
| Jun 16, 6:43 PM CDT | Severe Thunderstorm Warning | DMX | 47 min |
| Jun 16, 6:49 PM CDT | Tornado Warning | DMX | 26 min |
| Jun 17, 3:59 PM CDT | Flash Flood Watch | DMX | 15 hr |
| Jun 17, 11:39 PM CDT | Tornado Watch | SPC | 5 hr |
| Jun 18, 1:52 AM CDT | Mesoscale Discussion | SPC | 83 min |
| Jun 18, 3:11 AM CDT | Severe Thunderstorm Warning | DMX | 49 min |
| Jun 18, 3:47 AM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 18, 4:02 PM CDT | Flash Flood Watch | DMX | 29 hr |
| Jun 19, 11:34 AM CDT | Areal Flood Warning | DMX | 12 hr |
| Jun 19, 2:02 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Jun 20, 3:44 AM CDT | Dense Fog Advisory | DMX | 4 hr |
| Jun 22, 3:50 AM CDT | Flash Flood Watch | DMX | 12 hr |
| Jun 26, 2:54 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 28, 1:12 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 28, 2:06 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 28, 6:09 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Jun 29, 5:14 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jun 30, 4:15 AM CDT | Severe Thunderstorm Warning | DMX | 45 min |
| Jul 6, 4:44 PM CDT | Mesoscale Discussion | SPC | 61 min |
| Jul 7, 4:47 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Jul 20, 3:23 PM CDT | Heat Advisory | DMX | 52 hr |
| Aug 4, 2:06 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Aug 5, 5:47 AM CDT | Dense Fog Advisory | DMX | 2 hr |
| Aug 18, 1:11 AM CDT | Special Weather Statement | DMX | 64 min |
| Aug 18, 2:57 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Aug 18, 6:49 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Aug 18, 7:43 PM CDT | Severe Thunderstorm Warning | DMX | 47 min |
| Aug 18, 7:44 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 21, 5:15 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 21, 9:04 AM CDT | Mesoscale Discussion | SPC | 86 min |
| Aug 24, 11:41 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Aug 31, 2:20 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Aug 31, 6:56 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 9, 3:56 AM CDT | Flash Flood Watch | DMX | 24 hr |
| Sep 12, 3:28 PM CDT | Frost Advisory | DMX | 17 hr |
| Sep 19, 6:19 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 19, 11:45 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 20, 5:42 PM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Sep 20, 6:34 PM CDT | Severe Thunderstorm Warning | DMX | 41 min |
| Sep 20, 7:25 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Oct 1, 11:12 PM CDT | Dense Fog Advisory | DMX | 10 hr |
| Oct 2, 3:28 PM CDT | Wind Advisory | DMX | 24 hr |
| Oct 9, 3:31 PM CDT | Frost Advisory | DMX | 17 hr |
| Oct 10, 3:15 PM CDT | Freeze Warning | DMX | 18 hr |
| Oct 23, 3:58 PM CDT | Dense Fog Advisory | DMX | 18 hr |
| Nov 7, 11:23 AM CST | Wind Advisory | DMX | 19 hr |
| Nov 14, 3:39 AM CST | Winter Weather Advisory | DMX | 44 hr |
| Nov 16, 3:44 AM CST | Winter Weather Advisory | DMX | 38 hr |
| Nov 17, 3:42 PM CST | Wind Chill Advisory | DMX | 12 hr |
| Nov 21, 3:48 AM CST | Freezing Rain Advisory | DMX | 26 hr |
| Nov 22, 8:37 AM CST | Dense Fog Advisory | DMX | 2 hr |
| Nov 23, 3:34 PM CST | Wind Advisory | DMX | 26 hr |
| Nov 25, 3:38 PM CST | Winter Weather Advisory | DMX | 26 hr |
| Dec 13, 3:47 PM CST | Dense Fog Advisory | DMX | 40 hr |
| Dec 15, 3:33 PM CST | Wind Advisory | DMX | 14 hr |
| Dec 21, 12:24 AM CST | Dense Fog Advisory | DMX | 9 hr |
| Dec 26, 3:42 AM CST | Winter Weather Advisory | DMX | 29 hr |
| Dec 29, 3:48 AM CST | Wind Chill Advisory | DMX | 32 hr |
| Dec 30, 2:27 PM CST | Wind Chill Advisory | DMX | 20 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 | 8 |
| Tornado Warning | 4 |
| Severe Thunderstorm Watch | 6 |
| Tornado Watch | 3 |
| Mesoscale Discussion | 26 |
| Special Weather Statement | 2 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 1 |
| Flash Flood Watch | 8 |
| Winter | |
| Blizzard Warning | 2 |
| Blizzard Watch | 2 |
| Winter Storm Watch | 1 |
| Freezing Rain Advisory | 1 |
| Winter Weather Advisory | 17 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 1 |
| Wind Chill Warning | 4 |
| Wind Chill Watch | 1 |
| Frost Advisory | 3 |
| Wind Chill Advisory | 22 |
| Wind and dust | |
| Wind Advisory | 9 |
| Fire | |
| Red Flag Warning | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 8 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20132015
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.