Alert archive / Florida / Liberty County
Weather alerts in Liberty County, Florida, 2023
231 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Liberty County and its neighbors
Each county as a circle sized by its count in 2023. Tap one for its archive.
- Alerts
- 231
- Warnings
- 75
- Watches
- 15
- Advisories
- 24
- Busiest month
- June51 alerts
- Busiest day
- April 27, 202311 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
5 of 7 tornado warnings covering Liberty County in 2023 had a tornado report inside them; 2 of 2 tornado reports fell inside a warning, on average 4 minutes after it went out.
Liberty County, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 7 | 5 | 29% | 2 | 100% | 4 min |
| Severe thunderstorm warnings | 60 | 34 | 43% | 5 | 100% | 34 min |
| Flash flood warnings | 4 | 4 | 0% | 0 |
Each office's whole area, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Tallahassee, FL: tornado warnings | 117 | 36 | 69% | 43 | 91% | 9 min |
| NWS Tallahassee, FL: severe thunderstorm warnings | 599 | 397 | 34% | 962 | 89% | 30 min |
| NWS Tallahassee, FL: flash flood warnings | 66 | 41 | 38% | 103 | 96% | 79 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, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 4, 3:59 AM EST | Tornado Watch | SPC | 7 hr |
| Jan 4, 8:07 AM EST | Mesoscale Discussion | SPC | 113 min |
| Jan 4, 8:19 AM EST | Severe Thunderstorm Warning | TAE | 56 min |
| Jan 4, 9:07 AM EST | Severe Thunderstorm Warning | TAE | 83 min |
| Jan 4, 9:17 AM EST | Severe Thunderstorm Warning | TAE | 58 min |
| Jan 4, 9:50 AM EST | Severe Thunderstorm Warning | TAE | 55 min |
| Jan 12, 2:19 PM EST | Mesoscale Discussion | SPC | 116 min |
| Jan 12, 4:09 PM EST | Severe Thunderstorm Warning | TAE | 36 min |
| Jan 12, 7:47 PM EST | Mesoscale Discussion | SPC | 118 min |
| Jan 22, 8:03 AM EST | Special Weather Statement | TAE | 42 min |
| Jan 22, 8:41 AM EST | Mesoscale Discussion | SPC | 94 min |
| Jan 22, 8:43 AM EST | Special Weather Statement | TAE | 47 min |
| Jan 22, 11:31 AM EST | Areal Flood Advisory | TAE | 119 min |
| Jan 22, 12:23 PM EST | Areal Flood Advisory | TAE | 67 min |
| Jan 22, 3:40 PM EST | Special Weather Statement | TAE | 65 min |
| Jan 22, 4:22 PM EST | Severe Thunderstorm Warning | TAE | 65 min |
| Jan 25, 4:03 AM EST | Tornado Watch | SPC | 8 hr |
| Jan 25, 7:46 AM EST | Severe Thunderstorm Warning | TAE | 59 min |
| Jan 25, 8:30 AM EST | Tornado Warning | TAE | 30 min |
| Jan 25, 8:42 AM EST | Severe Thunderstorm Warning | TAE | 63 min |
| Jan 25, 8:46 AM EST | Severe Thunderstorm Warning | TAE | 74 min |
| Jan 25, 9:45 AM EST | Severe Thunderstorm Warning | TAE | 30 min |
| Jan 25, 10:11 AM EST | Severe Thunderstorm Warning | TAE | 64 min |
| Jan 30, 8:12 PM EST | River Flood Warning | TAE | 6 days |
| Mar 10, 12:27 PM EST | Mesoscale Discussion | SPC | 3 hr |
| Mar 12, 1:04 PM EDT | Tornado Watch | SPC | 7 hr |
| Mar 12, 2:27 PM EDT | Severe Thunderstorm Warning | TAE | 63 min |
| Mar 12, 3:26 PM EDT | Special Weather Statement | TAE | 64 min |
| Mar 12, 4:18 PM EDT | Severe Thunderstorm Warning | TAE | 42 min |
| Mar 12, 4:44 PM EDT | Special Weather Statement | TAE | 46 min |
| Mar 12, 7:33 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Mar 12, 9:59 PM EDT | Special Weather Statement | TAE | 31 min |
| Mar 12, 10:27 PM EDT | Special Weather Statement | TAE | 33 min |
| Mar 12, 11:17 PM EDT | Areal Flood Advisory | TAE | 3 hr |
| Mar 17, 7:45 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Mar 27, 8:13 PM EDT | Areal Flood Advisory | TAE | 3 hr |
| Mar 28, 1:50 PM EDT | River Flood Warning | TAE | 6 days |
| Mar 28, 2:08 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 28, 2:59 PM EDT | Special Weather Statement | TAE | 46 min |
| Mar 28, 3:17 PM EDT | Special Weather Statement | TAE | 58 min |
| Mar 28, 3:18 PM EDT | Severe Thunderstorm Warning | TAE | 27 min |
| Apr 4, 12:47 PM EDT | River Flood Warning | TAE | 5 days |
| Apr 5, 10:49 PM EDT | River Flood Warning | TAE | 4 days |
| Apr 13, 6:10 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 13, 6:40 AM EDT | Tornado Watch | SPC | 7 hr |
| Apr 13, 8:26 AM EDT | Special Weather Statement | TAE | 49 min |
| Apr 13, 9:17 AM EDT | Special Weather Statement | TAE | 43 min |
| Apr 15, 6:11 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 15, 7:23 PM EDT | Severe Thunderstorm Warning | TAE | 67 min |
| Apr 27, 10:09 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 27, 11:37 AM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Apr 27, 2:41 PM EDT | Severe Thunderstorm Warning | TAE | 64 min |
| Apr 27, 2:49 PM EDT | Tornado Warning | TAE | 26 min |
| Apr 27, 3:10 PM EDT | Tornado Warning | TAE | 35 min |
| Apr 27, 3:38 PM EDT | Severe Thunderstorm Warning | TAE | 67 min |
| Apr 27, 3:49 PM EDT | Tornado Warning | TAE | 26 min |
| Apr 27, 4:10 PM EDT | Tornado Warning | TAE | 15 min |
| Apr 27, 4:15 PM EDT | Severe Thunderstorm Warning | TAE | 75 min |
| Apr 27, 4:34 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Apr 27, 4:51 PM EDT | Severe Thunderstorm Warning | TAE | 69 min |
| May 12, 1:03 PM EDT | Special Weather Statement | TAE | 27 min |
| May 12, 1:10 PM EDT | Severe Thunderstorm Warning | TAE | 35 min |
| May 12, 1:45 PM EDT | Special Weather Statement | TAE | 30 min |
| May 12, 1:56 PM EDT | Severe Thunderstorm Warning | TAE | 34 min |
| May 12, 2:08 PM EDT | Special Weather Statement | TAE | 37 min |
| May 12, 2:21 PM EDT | Severe Thunderstorm Warning | TAE | 24 min |
| May 12, 2:33 PM EDT | Areal Flood Advisory | TAE | 117 min |
| May 12, 2:43 PM EDT | Special Weather Statement | TAE | 32 min |
| May 15, 2:38 PM EDT | Special Weather Statement | TAE | 37 min |
| May 15, 2:54 PM EDT | Severe Thunderstorm Warning | TAE | 51 min |
| May 15, 3:02 PM EDT | Severe Thunderstorm Warning | TAE | 43 min |
| May 15, 3:20 PM EDT | Severe Thunderstorm Warning | TAE | 25 min |
| May 15, 3:40 PM EDT | Special Weather Statement | TAE | 35 min |
| May 15, 3:51 PM EDT | Severe Thunderstorm Warning | TAE | 39 min |
| May 15, 4:25 PM EDT | Special Weather Statement | TAE | 35 min |
| May 17, 11:28 AM EDT | Special Weather Statement | TAE | 47 min |
| May 17, 11:28 AM EDT | Special Weather Statement | TAE | 47 min |
| May 17, 12:41 PM EDT | Special Weather Statement | TAE | 49 min |
| May 18, 2:01 PM EDT | Special Weather Statement | TAE | 29 min |
| May 18, 2:47 PM EDT | Special Weather Statement | TAE | 43 min |
| May 18, 2:55 PM EDT | Special Weather Statement | TAE | 35 min |
| May 21, 2:42 PM EDT | Special Weather Statement | TAE | 48 min |
| May 22, 11:05 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 22, 1:27 PM EDT | Severe Thunderstorm Warning | TAE | 18 min |
| May 22, 1:47 PM EDT | Special Weather Statement | TAE | 28 min |
| May 22, 1:56 PM EDT | Areal Flood Advisory | TAE | 3 hr |
| May 22, 2:12 PM EDT | Special Weather Statement | TAE | 48 min |
| May 22, 3:13 PM EDT | Areal Flood Advisory | TAE | 3 hr |
| May 22, 3:49 PM EDT | Special Weather Statement | TAE | 56 min |
| May 22, 5:06 PM EDT | Flash Flood Warning | TAE | 114 min |
| May 23, 3:37 PM EDT | Mesoscale Discussion | SPC | 83 min |
| May 23, 4:47 PM EDT | Severe Thunderstorm Warning | TAE | 28 min |
| Jun 4, 2:49 PM EDT | Severe Thunderstorm Warning | TAE | 41 min |
| Jun 4, 3:41 PM EDT | Special Weather Statement | TAE | 49 min |
| Jun 4, 4:29 PM EDT | Severe Thunderstorm Warning | TAE | 29 min |
| Jun 4, 4:34 PM EDT | Severe Thunderstorm Warning | TAE | 41 min |
| Jun 4, 4:44 PM EDT | Special Weather Statement | TAE | 46 min |
| Jun 4, 5:04 PM EDT | Severe Thunderstorm Warning | TAE | 41 min |
| Jun 7, 1:30 PM EDT | Areal Flood Advisory | TAE | 3 hr |
| Jun 8, 4:05 PM EDT | Special Weather Statement | TAE | 40 min |
| Jun 9, 1:58 PM EDT | Special Weather Statement | TAE | 47 min |
| Jun 9, 2:08 PM EDT | Severe Thunderstorm Warning | TAE | 37 min |
| Jun 9, 2:37 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Jun 10, 2:29 PM EDT | Special Weather Statement | TAE | 46 min |
| Jun 10, 2:30 PM EDT | Special Weather Statement | TAE | 45 min |
| Jun 10, 3:17 PM EDT | Special Weather Statement | TAE | 43 min |
| Jun 12, 12:55 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jun 12, 2:11 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 12, 3:33 PM EDT | Severe Thunderstorm Warning | TAE | 34 min |
| Jun 12, 4:54 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Jun 12, 7:46 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Jun 13, 1:30 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 13, 6:26 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Jun 14, 6:41 PM EDT | Tornado Watch | SPC | 5 hr |
| Jun 15, 12:10 AM EDT | Severe Thunderstorm Warning | TAE | 65 min |
| Jun 15, 9:48 AM EDT | Mesoscale Discussion | SPC | 57 min |
| Jun 15, 10:03 AM EDT | Tornado Watch | SPC | 6 hr |
| Jun 15, 10:41 AM EDT | Special Weather Statement | TAE | 49 min |
| Jun 15, 3:08 PM EDT | Mesoscale Discussion | SPC | 67 min |
| Jun 15, 3:52 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 15, 6:56 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 16, 2:25 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 16, 2:36 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 16, 9:58 AM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 16, 10:03 AM EDT | Mesoscale Discussion | SPC | 87 min |
| Jun 16, 11:24 AM EDT | Severe Thunderstorm Warning | TAE | 66 min |
| Jun 16, 12:28 PM EDT | Special Weather Statement | TAE | 32 min |
| Jun 16, 12:59 PM EDT | Special Weather Statement | TAE | 31 min |
| Jun 16, 2:01 PM EDT | Special Weather Statement | TAE | 59 min |
| Jun 17, 1:55 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 17, 4:04 PM EDT | Severe Thunderstorm Warning | TAE | 71 min |
| Jun 17, 4:44 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Jun 17, 7:18 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Jun 18, 12:56 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 18, 4:24 PM EDT | Severe Thunderstorm Warning | TAE | 66 min |
| Jun 19, 9:02 AM EDT | Severe Thunderstorm Warning | TAE | 58 min |
| Jun 19, 10:00 AM EDT | Areal Flood Advisory | TAE | 3 hr |
| Jun 19, 11:57 AM EDT | Severe Thunderstorm Warning | TAE | 48 min |
| Jun 21, 4:59 PM EDT | Special Weather Statement | TAE | 46 min |
| Jun 21, 5:04 PM EDT | Severe Thunderstorm Warning | TAE | 37 min |
| Jun 21, 5:14 PM EDT | Severe Thunderstorm Warning | TAE | 76 min |
| Jun 22, 11:22 PM EDT | Severe Thunderstorm Warning | TAE | 48 min |
| Jun 22, 11:58 PM EDT | Special Weather Statement | TAE | 62 min |
| Jul 1, 5:35 PM EDT | Special Weather Statement | TAE | 40 min |
| Jul 1, 6:11 PM EDT | Special Weather Statement | TAE | 49 min |
| Jul 4, 1:00 PM EDT | Severe Thunderstorm Warning | TAE | 45 min |
| Jul 4, 2:17 PM EDT | Special Weather Statement | TAE | 43 min |
| Jul 7, 2:55 PM EDT | Special Weather Statement | TAE | 50 min |
| Jul 7, 4:20 PM EDT | Special Weather Statement | TAE | 25 min |
| Jul 8, 3:17 PM EDT | Severe Thunderstorm Warning | TAE | 18 min |
| Jul 8, 7:47 PM EDT | Severe Thunderstorm Warning | TAE | 58 min |
| Jul 9, 6:52 AM EDT | Special Weather Statement | TAE | 53 min |
| Jul 9, 7:50 AM EDT | Special Weather Statement | TAE | 40 min |
| Jul 9, 2:05 PM EDT | Severe Thunderstorm Warning | TAE | 55 min |
| Jul 10, 7:08 AM EDT | Special Weather Statement | TAE | 52 min |
| Jul 10, 7:55 AM EDT | Severe Thunderstorm Warning | TAE | 46 min |
| Jul 10, 9:19 AM EDT | Special Weather Statement | TAE | 41 min |
| Jul 10, 9:53 AM EDT | Special Weather Statement | TAE | 52 min |
| Jul 14, 7:01 AM EDT | Areal Flood Advisory | TAE | 3 hr |
| Jul 15, 2:07 PM EDT | Special Weather Statement | TAE | 53 min |
| Jul 16, 1:52 PM EDT | Severe Thunderstorm Warning | TAE | 83 min |
| Jul 16, 2:37 PM EDT | Severe Thunderstorm Warning | TAE | 98 min |
| Jul 22, 12:00 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 22, 12:43 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 22, 3:30 PM EDT | Special Weather Statement | TAE | 30 min |
| Jul 22, 4:17 PM EDT | Mesoscale Discussion | SPC | 58 min |
| Jul 24, 4:25 PM EDT | Special Weather Statement | TAE | 35 min |
| Jul 24, 4:54 PM EDT | Special Weather Statement | TAE | 36 min |
| Jul 24, 5:26 PM EDT | Special Weather Statement | TAE | 34 min |
| Jul 24, 6:13 PM EDT | Areal Flood Advisory | TAE | 9 min |
| Jul 24, 6:22 PM EDT | Flash Flood Warning | TAE | 113 min |
| Jul 27, 4:16 PM EDT | Special Weather Statement | TAE | 44 min |
| Jul 30, 2:39 PM EDT | Special Weather Statement | TAE | 36 min |
| Jul 30, 3:53 PM EDT | Special Weather Statement | TAE | 52 min |
| Jul 30, 4:20 PM EDT | Severe Thunderstorm Warning | TAE | 40 min |
| Jul 30, 4:34 PM EDT | Special Weather Statement | TAE | 41 min |
| Aug 4, 6:51 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Aug 4, 8:51 PM EDT | Special Weather Statement | TAE | 54 min |
| Aug 4, 9:23 PM EDT | Severe Thunderstorm Warning | TAE | 82 min |
| Aug 6, 2:34 PM EDT | Severe Thunderstorm Warning | TAE | 56 min |
| Aug 6, 3:07 PM EDT | Special Weather Statement | TAE | 38 min |
| Aug 6, 3:20 PM EDT | Special Weather Statement | TAE | 55 min |
| Aug 6, 4:03 PM EDT | Special Weather Statement | TAE | 57 min |
| Aug 11, 12:54 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 12, 5:12 PM EDT | Special Weather Statement | TAE | 33 min |
| Aug 14, 4:06 PM EDT | Severe Thunderstorm Warning | TAE | 39 min |
| Aug 14, 4:42 PM EDT | Special Weather Statement | TAE | 63 min |
| Aug 14, 5:42 PM EDT | Special Weather Statement | TAE | 48 min |
| Aug 15, 1:57 PM EDT | Special Weather Statement | TAE | 48 min |
| Aug 20, 6:42 PM EDT | Special Weather Statement | TAE | 63 min |
| Aug 20, 7:13 PM EDT | Severe Thunderstorm Warning | TAE | 30 min |
| Aug 25, 11:43 PM EDT | Special Weather Statement | TAE | 62 min |
| Aug 26, 12:43 AM EDT | Special Weather Statement | TAE | 62 min |
| Aug 26, 1:42 AM EDT | Special Weather Statement | TAE | 33 min |
| Aug 27, 3:32 PM EDT | Special Weather Statement | TAE | 43 min |
| Aug 27, 4:16 PM EDT | Special Weather Statement | TAE | 44 min |
| Aug 29, 12:11 PM EDT | Special Weather Statement | TAE | 34 min |
| Aug 29, 12:43 PM EDT | Special Weather Statement | TAE | 32 min |
| Sep 7, 7:39 PM EDT | Severe Thunderstorm Warning | TAE | 51 min |
| Sep 7, 8:07 PM EDT | Severe Thunderstorm Warning | TAE | 53 min |
| Sep 7, 9:23 PM EDT | Special Weather Statement | TAE | 52 min |
| Sep 7, 9:35 PM EDT | Severe Thunderstorm Warning | TAE | 40 min |
| Sep 12, 1:24 PM EDT | Special Weather Statement | TAE | 66 min |
| Sep 12, 4:06 PM EDT | Areal Flood Advisory | TAE | 2 hr |
| Sep 17, 4:25 PM EDT | Special Weather Statement | TAE | 50 min |
| Sep 26, 7:23 AM EDT | Areal Flood Advisory | TAE | 2 hr |
| Sep 26, 8:32 AM EDT | Tornado Warning | TAE | 28 min |
| Sep 26, 8:54 AM EDT | Mesoscale Discussion | SPC | 66 min |
| Sep 26, 8:58 AM EDT | Special Weather Statement | TAE | 32 min |
| Sep 26, 9:34 AM EDT | Areal Flood Advisory | TAE | 3 hr |
| Sep 26, 10:43 AM EDT | Areal Flood Advisory | TAE | 3 hr |
| Nov 21, 11:36 AM EST | Mesoscale Discussion | SPC | 54 min |
| Nov 21, 2:52 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Dec 2, 8:32 AM EST | Areal Flood Advisory | TAE | 6 hr |
| Dec 2, 9:04 AM EST | Areal Flood Advisory | TAE | 6 hr |
| Dec 2, 9:07 AM EST | Areal Flood Advisory | TAE | 6 hr |
| Dec 2, 9:51 AM EST | Flash Flood Warning | TAE | 3 hr |
| Dec 2, 10:59 AM EST | Areal Flood Advisory | TAE | 4 hr |
| Dec 2, 2:41 PM EST | Flash Flood Warning | TAE | 3 hr |
| Dec 2, 2:55 PM EST | Areal Flood Advisory | TAE | 6 hr |
| Dec 2, 8:32 PM EST | Areal Flood Advisory | TAE | 12 hr |
| Dec 10, 1:58 AM EST | Tornado Watch | SPC | 9 hr |
| Dec 10, 8:05 AM EST | Special Weather Statement | TAE | 55 min |
| Dec 10, 8:12 AM EST | Severe Thunderstorm Warning | TAE | 93 min |
| Dec 10, 8:24 AM EST | Tornado Warning | TAE | 21 min |
| Dec 10, 8:28 AM EST | Mesoscale Discussion | SPC | 62 min |
| Dec 10, 8:33 AM EST | Areal Flood Advisory | TAE | 117 min |
| Dec 10, 9:00 AM EST | Severe Thunderstorm Warning | TAE | 90 min |
| Dec 10, 9:18 AM EST | Areal Flood Advisory | TAE | 117 min |
| Dec 10, 10:41 AM EST | Areal Flood Advisory | TAE | 2 hr |
| Dec 10, 5:44 PM EST | Special Weather Statement | TAE | 91 min |
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 | 60 |
| Tornado Warning | 7 |
| Severe Thunderstorm Watch | 8 |
| Tornado Watch | 7 |
| Mesoscale Discussion | 35 |
| Special Weather Statement | 82 |
| Flooding | |
| Flash Flood Warning | 4 |
| River Flood Warning | 4 |
| Areal Flood Advisory | 24 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20222024
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.