Alert archive / Iowa / Fremont County
Weather alerts in Fremont County, Iowa, 2013
134 weather alerts in 2013, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Fremont County and its neighbors
Each county as a circle sized by its count in 2013. Tap one for its archive.
- Alerts
- 134
- Warnings
- 26
- Watches
- 24
- Advisories
- 30
- Busiest month
- May44 alerts
- Busiest day
- May 19, 20139 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Fremont County, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 17 | 7 | 59% | 2 | 100% | 15 min |
| Flash flood warnings | 4 | 2 | 50% | 1 | 100% | 15 min |
Each office's whole area, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Omaha, NE: tornado warnings | 23 | 7 | 70% | 19 | 79% | 16 min |
| NWS Omaha, NE: severe thunderstorm warnings | 229 | 124 | 46% | 266 | 82% | 16 min |
| NWS Omaha, NE: flash flood warnings | 22 | 12 | 45% | 16 | 94% | 37 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 10, 7:31 PM CST | Dense Fog Advisory | OAX | 16 hr |
| Jan 27, 3:22 PM CST | Dense Fog Advisory | OAX | 35 hr |
| Jan 29, 4:00 AM CST | Winter Weather Advisory | OAX | 29 hr |
| Jan 29, 8:29 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Feb 9, 3:17 PM CST | Wind Advisory | OAX | 36 hr |
| Feb 18, 11:07 AM CST | Special Weather Statement | OAX | 83 min |
| Feb 18, 3:15 PM CST | Winter Storm Watch | OAX | 49 hr |
| Feb 19, 4:09 PM CST | Winter Storm Warning | OAX | 60 hr |
| Feb 26, 9:21 AM CST | Winter Weather Advisory | OAX | 14 hr |
| Mar 4, 3:54 AM CST | Wind Advisory | OAX | 35 hr |
| Mar 9, 3:39 AM CST | Winter Weather Advisory | OAX | 45 hr |
| Mar 22, 4:02 AM CDT | Winter Storm Watch | OAX | 25 hr |
| Mar 23, 4:34 AM CDT | Winter Weather Advisory | OAX | 26 hr |
| Mar 24, 7:00 AM CDT | Winter Weather Advisory | OAX | 3 hr |
| Apr 9, 5:45 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 9, 8:41 PM CDT | Mesoscale Discussion | SPC | 64 min |
| Apr 9, 11:22 PM CDT | Special Weather Statement | OAX | 53 min |
| Apr 9, 11:27 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Apr 10, 12:16 AM CDT | Special Weather Statement | OAX | 44 min |
| Apr 17, 5:34 AM CDT | Special Weather Statement | OAX | 26 min |
| Apr 17, 9:53 AM CDT | Special Weather Statement | OAX | 37 min |
| Apr 17, 10:51 AM CDT | Special Weather Statement | OAX | 54 min |
| Apr 17, 11:45 AM CDT | Special Weather Statement | OAX | 30 min |
| Apr 17, 11:56 AM CDT | Flood Watch | OAX | 9 hr |
| Apr 17, 4:14 PM CDT | Areal Flood Advisory | OAX | 3 hr |
| Apr 24, 7:01 PM CDT | Special Weather Statement | OAX | 59 min |
| Apr 29, 7:26 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 30, 4:01 PM CDT | Mesoscale Discussion | SPC | 119 min |
| May 1, 3:53 PM CDT | Winter Weather Advisory | OAX | 18 hr |
| May 11, 2:56 PM CDT | Frost Advisory | OAX | 17 hr |
| May 13, 3:36 PM CDT | Fire Weather Watch | OAX | 12 hr |
| May 14, 3:55 AM CDT | Red Flag Warning | OAX | 17 hr |
| May 18, 8:33 PM CDT | Mesoscale Discussion | SPC | 117 min |
| May 18, 9:26 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 19, 12:15 AM CDT | Severe Thunderstorm Warning | OAX | 45 min |
| May 19, 12:54 AM CDT | Special Weather Statement | OAX | 51 min |
| May 19, 1:03 AM CDT | Severe Thunderstorm Warning | OAX | 27 min |
| May 19, 1:47 PM CDT | Tornado Watch | SPC | 10 hr |
| May 19, 3:17 PM CDT | Severe Thunderstorm Warning | OAX | 28 min |
| May 19, 4:25 PM CDT | Severe Thunderstorm Warning | OAX | 50 min |
| May 19, 5:12 PM CDT | Severe Thunderstorm Warning | OAX | 48 min |
| May 26, 6:47 PM CDT | Mesoscale Discussion | SPC | 88 min |
| May 26, 11:03 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 27, 1:40 AM CDT | Mesoscale Discussion | SPC | 95 min |
| May 27, 2:58 AM CDT | Severe Thunderstorm Warning | OAX | 32 min |
| May 27, 3:30 AM CDT | Severe Thunderstorm Warning | OAX | 30 min |
| May 27, 3:59 AM CDT | Severe Thunderstorm Warning | OAX | 46 min |
| May 27, 4:22 AM CDT | Areal Flood Advisory | OAX | 113 min |
| May 27, 9:52 AM CDT | River Flood Warning | OAX | 4 days |
| May 27, 9:07 PM CDT | Mesoscale Discussion | SPC | 53 min |
| May 27, 9:31 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 27, 10:02 PM CDT | Severe Thunderstorm Warning | OAX | 43 min |
| May 27, 10:32 PM CDT | Special Weather Statement | OAX | 43 min |
| May 27, 11:24 PM CDT | Areal Flood Advisory | OAX | 3 hr |
| May 28, 1:37 PM CDT | Mesoscale Discussion | SPC | 113 min |
| May 28, 2:23 PM CDT | Tornado Watch | SPC | 8 hr |
| May 28, 3:00 PM CDT | Flash Flood Watch | OAX | 7 hr |
| May 28, 5:35 PM CDT | Flash Flood Warning | OAX | 3 hr |
| May 28, 9:20 PM CDT | Mesoscale Discussion | SPC | 55 min |
| May 29, 8:54 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 29, 10:13 AM CDT | Flash Flood Watch | OAX | 28 hr |
| May 29, 11:37 AM CDT | Special Weather Statement | OAX | 38 min |
| May 29, 1:11 PM CDT | Special Weather Statement | OAX | 34 min |
| May 29, 1:45 PM CDT | Flash Flood Warning | OAX | 3 hr |
| May 29, 2:47 PM CDT | Flash Flood Warning | OAX | 3 hr |
| May 29, 3:33 PM CDT | Tornado Watch | SPC | 7 hr |
| May 29, 6:24 PM CDT | Tornado Watch | SPC | 4 hr |
| May 29, 8:19 PM CDT | Flash Flood Warning | OAX | 5 hr |
| May 29, 8:58 PM CDT | River Flood Warning | OAX | 59 hr |
| May 29, 8:58 PM CDT | River Flood Warning | OAX | 4 days |
| May 30, 7:41 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 30, 8:33 PM CDT | Severe Thunderstorm Warning | OAX | 27 min |
| Jun 4, 10:43 PM CDT | Special Weather Statement | OAX | 32 min |
| Jun 8, 3:56 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 8, 5:39 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Jun 8, 7:44 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 14, 2:28 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 14, 3:10 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 14, 3:37 PM CDT | Tornado Watch | SPC | 6 hr |
| Jun 14, 10:07 PM CDT | Special Weather Statement | OAX | 53 min |
| Jun 23, 7:54 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Jun 23, 8:29 PM CDT | Special Weather Statement | OAX | 31 min |
| Jun 25, 8:23 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Jun 27, 4:28 AM CDT | Mesoscale Discussion | SPC | 62 min |
| Jun 27, 11:35 AM CDT | Mesoscale Discussion | SPC | 115 min |
| Jul 8, 3:20 PM CDT | Heat Advisory | OAX | 28 hr |
| Jul 22, 3:08 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 22, 10:51 PM CDT | Severe Thunderstorm Warning | OAX | 24 min |
| Jul 23, 6:59 AM CDT | Special Weather Statement | OAX | 31 min |
| Jul 23, 7:33 AM CDT | Severe Thunderstorm Warning | OAX | 27 min |
| Jul 23, 7:46 AM CDT | Mesoscale Discussion | SPC | 89 min |
| Jul 30, 3:40 PM CDT | Dense Fog Advisory | OAX | 17 hr |
| Aug 6, 5:07 AM CDT | Mesoscale Discussion | SPC | 83 min |
| Aug 6, 5:16 AM CDT | Dense Fog Advisory | OAX | 4 hr |
| Aug 6, 6:35 AM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Aug 6, 9:26 AM CDT | Mesoscale Discussion | SPC | 64 min |
| Aug 6, 6:51 PM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Aug 6, 9:37 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Aug 25, 3:27 AM CDT | Heat Advisory | OAX | 64 hr |
| Aug 30, 3:39 AM CDT | Heat Advisory | OAX | 15 hr |
| Sep 1, 1:10 AM CDT | Mesoscale Discussion | SPC | 95 min |
| Sep 19, 1:19 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Sep 19, 2:43 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Sep 19, 2:50 PM CDT | Severe Thunderstorm Warning | OAX | 25 min |
| Sep 19, 3:14 PM CDT | Severe Thunderstorm Warning | OAX | 46 min |
| Oct 3, 7:32 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 3, 8:16 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Oct 3, 9:13 PM CDT | Tornado Watch | SPC | 5 hr |
| Oct 3, 11:42 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Oct 4, 2:06 AM CDT | Mesoscale Discussion | SPC | 84 min |
| Oct 4, 1:28 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 4, 2:38 PM CDT | Tornado Watch | SPC | 7 hr |
| Oct 4, 5:20 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Oct 4, 6:03 PM CDT | Severe Thunderstorm Warning | OAX | 27 min |
| Oct 4, 7:05 PM CDT | Special Weather Statement | OAX | 25 min |
| Oct 4, 7:11 PM CDT | Severe Thunderstorm Warning | OAX | 34 min |
| Oct 14, 8:42 PM CDT | Special Weather Statement | OAX | 33 min |
| Oct 14, 9:13 PM CDT | Special Weather Statement | OAX | 47 min |
| Oct 30, 6:45 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 30, 8:51 AM CDT | Special Weather Statement | OAX | 24 min |
| Oct 30, 9:13 AM CDT | Severe Thunderstorm Warning | OAX | 32 min |
| Oct 30, 9:29 AM CDT | Mesoscale Discussion | SPC | 91 min |
| Nov 2, 3:55 PM CDT | Wind Advisory | OAX | 27 hr |
| Nov 8, 8:45 AM CST | Wind Advisory | OAX | 7 hr |
| Nov 16, 9:20 AM CST | Wind Advisory | OAX | 6 hr |
| Nov 21, 11:54 AM CST | Winter Weather Advisory | OAX | 12 hr |
| Dec 4, 3:20 AM CST | Winter Weather Advisory | OAX | 6 hr |
| Dec 4, 8:58 AM CST | Winter Weather Advisory | OAX | 3 hr |
| Dec 7, 3:47 PM CST | Winter Weather Advisory | OAX | 22 hr |
| Dec 13, 3:26 PM CST | Winter Weather Advisory | OAX | 6 hr |
| Dec 20, 3:20 PM CST | Winter Storm Watch | OAX | 13 hr |
| Dec 21, 4:05 AM CST | Winter Weather Advisory | OAX | 26 hr |
| Dec 22, 3:40 AM CST | Wind Chill Advisory | OAX | 32 hr |
| Dec 23, 4:02 AM CST | Wind Chill Advisory | OAX | 28 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 | 17 |
| Severe Thunderstorm Watch | 10 |
| Tornado Watch | 7 |
| Mesoscale Discussion | 34 |
| Special Weather Statement | 20 |
| Flooding | |
| Flash Flood Warning | 4 |
| River Flood Warning | 3 |
| Flash Flood Watch | 2 |
| Flood Watch | 1 |
| Areal Flood Advisory | 3 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 3 |
| Winter Weather Advisory | 12 |
| Heat | |
| Heat Advisory | 3 |
| Cold | |
| Frost Advisory | 1 |
| Wind Chill Advisory | 2 |
| Wind and dust | |
| Wind Advisory | 5 |
| Fire | |
| Red Flag Warning | 1 |
| Fire Weather Watch | 1 |
| 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 archive20122014
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.