Alert archive / Georgia / Glynn County
Weather alerts in Glynn County, Georgia, 2013
228 weather alerts in 2013, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Glynn County and its neighbors
Each county as a circle sized by its count in 2013. Tap one for its archive.
- Alerts
- 228
- Warnings
- 27
- Watches
- 20
- Advisories
- 93
- Busiest month
- November31 alerts
- Busiest day
- August 15, 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.
0 of 1 tornado warnings covering Glynn County in 2013 had a tornado report inside them.
Glynn County, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 12 | 6 | 50% | 4 | 100% | 17 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Jacksonville, FL: tornado warnings | 15 | 4 | 73% | 18 | 89% | 32 min |
| NWS Jacksonville, FL: severe thunderstorm warnings | 157 | 104 | 34% | 211 | 71% | 21 min |
| NWS Jacksonville, FL: flash flood warnings | 13 | 4 | 69% | 9 | 100% | 67 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 10, 4:28 AM EST | Dense Fog Advisory | JAX | 6 hr |
| Jan 12, 5:32 AM EST | Dense Fog Advisory | JAX | 4 hr |
| Jan 13, 1:02 AM EST | Dense Fog Advisory | JAX | 8 hr |
| Jan 17, 5:14 AM EST | Lake Wind Advisory | JAX | 14 hr |
| Jan 18, 3:03 AM EST | Lake Wind Advisory | JAX | 15 hr |
| Jan 18, 3:03 AM EST | Wind Advisory | JAX | 15 hr |
| Jan 18, 3:06 AM EST | Rip Current Statement | JAX | 39 hr |
| Jan 29, 4:31 AM EST | Dense Fog Advisory | JAX | 5 hr |
| Jan 30, 3:54 AM EST | Lake Wind Advisory | JAX | 25 hr |
| Jan 30, 8:44 PM EST | Mesoscale Discussion | SPC | 61 min |
| Jan 30, 9:26 PM EST | Severe Thunderstorm Warning | JAX | 79 min |
| Feb 7, 7:19 PM EST | Mesoscale Discussion | SPC | 86 min |
| Feb 12, 11:46 PM EST | Mesoscale Discussion | SPC | 119 min |
| Feb 13, 4:14 AM EST | Mesoscale Discussion | SPC | 2 hr |
| Feb 13, 5:31 AM EST | Tornado Watch | SPC | 3 hr |
| Feb 13, 6:50 AM EST | Special Weather Statement | JAX | 25 min |
| Feb 13, 8:38 AM EST | Mesoscale Discussion | SPC | 67 min |
| Feb 15, 1:40 PM EST | Hard Freeze Watch | JAX | 15 hr |
| Feb 15, 1:40 PM EST | Lake Wind Advisory | JAX | 30 hr |
| Feb 16, 4:34 AM EST | Hard Freeze Warning | JAX | 28 hr |
| Feb 17, 4:55 AM EST | Hard Freeze Warning | JAX | 28 hr |
| Feb 23, 7:35 PM EST | Special Weather Statement | JAX | 40 min |
| Feb 23, 9:43 PM EST | River Flood Warning | JAX | 21 days |
| Feb 25, 3:27 AM EST | Flood Watch | JAX | 32 hr |
| Feb 26, 12:01 AM EST | Areal Flood Advisory | JAX | 119 min |
| Feb 26, 5:01 AM EST | Lake Wind Advisory | JAX | 13 hr |
| Feb 26, 5:21 AM EST | Areal Flood Advisory | JAX | 3 hr |
| Feb 26, 6:19 AM EST | Mesoscale Discussion | SPC | 116 min |
| Feb 26, 6:49 AM EST | Tornado Watch | SPC | 8 hr |
| Feb 26, 11:38 AM EST | Mesoscale Discussion | SPC | 67 min |
| Feb 28, 4:23 AM EST | Lake Wind Advisory | JAX | 14 hr |
| Mar 2, 4:04 AM EST | Freeze Watch | JAX | 24 hr |
| Mar 2, 4:04 AM EST | Freeze Warning | JAX | 28 hr |
| Mar 2, 4:04 AM EST | Lake Wind Advisory | JAX | 14 hr |
| Mar 3, 3:38 AM EST | Freeze Warning | JAX | 29 hr |
| Mar 5, 3:09 AM EST | Lake Wind Advisory | JAX | 18 hr |
| Mar 5, 2:29 PM EST | Wind Advisory | JAX | 28 hr |
| Mar 7, 12:48 PM EST | Frost Advisory | JAX | 19 hr |
| Mar 14, 2:36 PM EDT | Frost Advisory | JAX | 18 hr |
| Mar 23, 10:59 AM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Mar 24, 2:05 AM EDT | Special Weather Statement | JAX | 25 min |
| Mar 24, 4:04 AM EDT | Lake Wind Advisory | JAX | 16 hr |
| Mar 24, 7:54 AM EDT | Mesoscale Discussion | SPC | 66 min |
| Mar 24, 8:37 AM EDT | Special Weather Statement | JAX | 23 min |
| Mar 24, 8:47 AM EDT | Areal Flood Advisory | JAX | 58 min |
| Mar 24, 8:58 AM EDT | Special Weather Statement | JAX | 32 min |
| Mar 24, 10:09 AM EDT | Mesoscale Discussion | SPC | 66 min |
| Mar 24, 10:46 AM EDT | Special Weather Statement | JAX | 44 min |
| Mar 24, 9:23 PM EDT | Special Weather Statement | JAX | 37 min |
| Mar 25, 3:59 AM EDT | Wind Advisory | JAX | 16 hr |
| Mar 25, 1:59 PM EDT | Freeze Watch | JAX | 24 hr |
| Mar 26, 3:38 AM EDT | Lake Wind Advisory | JAX | 14 hr |
| Mar 26, 2:00 PM EDT | Freeze Warning | JAX | 19 hr |
| Mar 27, 2:41 PM EDT | Frost Advisory | JAX | 18 hr |
| Apr 3, 3:39 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Apr 3, 9:21 PM EDT | River Flood Warning | JAX | 24 hr |
| Apr 12, 1:06 AM EDT | Tornado Watch | SPC | 6 hr |
| Apr 12, 12:35 PM EDT | Lake Wind Advisory | JAX | 7 hr |
| Apr 14, 9:16 PM EDT | Severe Thunderstorm Warning | JAX | 59 min |
| Apr 14, 10:19 PM EDT | Severe Thunderstorm Warning | JAX | 11 min |
| Apr 17, 5:54 AM EDT | Dense Fog Advisory | JAX | 3 hr |
| Apr 17, 8:52 AM EDT | Dense Fog Advisory | JAX | 68 min |
| Apr 19, 4:03 AM EDT | Lake Wind Advisory | JAX | 13 hr |
| Apr 19, 1:57 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 19, 2:36 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 19, 4:29 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 19, 6:00 PM EDT | Special Weather Statement | JAX | 45 min |
| Apr 19, 6:37 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Apr 19, 6:43 PM EDT | Special Weather Statement | JAX | 47 min |
| Apr 19, 6:54 PM EDT | Special Weather Statement | JAX | 36 min |
| Apr 21, 2:16 AM EDT | Lake Wind Advisory | JAX | 42 hr |
| Apr 21, 3:54 AM EDT | Rip Current Statement | JAX | 64 hr |
| Apr 21, 7:17 PM EDT | Wind Advisory | JAX | 8 hr |
| Apr 29, 3:40 PM EDT | Special Weather Statement | JAX | 50 min |
| Apr 29, 6:10 PM EDT | Special Weather Statement | JAX | 50 min |
| May 1, 1:52 PM EDT | Lake Wind Advisory | JAX | 13 hr |
| May 2, 4:08 AM EDT | Flood Watch | JAX | 72 hr |
| May 2, 4:10 AM EDT | Rip Current Statement | JAX | 71 hr |
| May 2, 4:14 AM EDT | Lake Wind Advisory | JAX | 10 hr |
| May 2, 9:45 AM EDT | Areal Flood Advisory | JAX | 60 min |
| May 2, 8:13 PM EDT | Lake Wind Advisory | JAX | 7 hr |
| May 3, 3:31 AM EDT | Lake Wind Advisory | JAX | 44 hr |
| May 3, 3:31 AM EDT | Wind Advisory | JAX | 24 hr |
| May 3, 3:37 AM EDT | High Surf Advisory | JAX | 48 hr |
| May 4, 2:55 PM EDT | Coastal Flood Advisory | JAX | 18 hr |
| May 4, 5:06 PM EDT | Special Weather Statement | JAX | 24 min |
| May 5, 12:46 AM EDT | Mesoscale Discussion | SPC | 59 min |
| May 5, 3:28 AM EDT | Areal Flood Advisory | JAX | 92 min |
| May 5, 5:02 AM EDT | Areal Flood Advisory | JAX | 58 min |
| May 5, 9:09 AM EDT | Rip Current Statement | JAX | 11 hr |
| May 19, 12:52 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 20, 1:05 PM EDT | Special Weather Statement | JAX | 40 min |
| May 22, 6:14 AM EDT | Dense Fog Advisory | JAX | 3 hr |
| Jun 3, 3:52 PM EDT | Special Weather Statement | JAX | 23 min |
| Jun 3, 7:50 PM EDT | Special Weather Statement | JAX | 25 min |
| Jun 4, 3:14 PM EDT | Special Weather Statement | JAX | 46 min |
| Jun 4, 3:36 PM EDT | Severe Thunderstorm Warning | JAX | 39 min |
| Jun 4, 4:12 PM EDT | Special Weather Statement | JAX | 48 min |
| Jun 5, 10:06 AM EDT | Flood Watch | JAX | 36 hr |
| Jun 5, 6:00 PM EDT | Tropical Storm Watch | NHC | 11 hr |
| Jun 5, 6:00 PM EDT | Tropical Storm Warning | NHC | 53 hr |
| Jun 5, 6:06 PM EDT | Tropical Storm Watch | JAX | 11 hr |
| Jun 5, 7:02 PM EDT | Wind Advisory | JAX | 11 hr |
| Jun 6, 5:01 AM EDT | Tropical Storm Warning | JAX | 24 hr |
| Jun 6, 10:43 AM EDT | Tornado Watch | SPC | 11 hr |
| Jun 6, 1:46 PM EDT | Areal Flood Advisory | JAX | 3 hr |
| Jun 6, 1:50 PM EDT | Special Weather Statement | JAX | 40 min |
| Jun 6, 5:34 PM EDT | Tornado Warning | JAX | 56 min |
| Jun 6, 6:33 PM EDT | Special Weather Statement | JAX | 27 min |
| Jun 6, 7:32 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jun 10, 6:52 PM EDT | Special Weather Statement | JAX | 38 min |
| Jun 10, 7:36 PM EDT | Special Weather Statement | JAX | 24 min |
| Jun 19, 6:17 PM EDT | Special Weather Statement | JAX | 28 min |
| Jun 19, 6:33 PM EDT | Special Weather Statement | JAX | 27 min |
| Jun 22, 11:21 AM EDT | Special Weather Statement | JAX | 39 min |
| Jun 22, 12:58 PM EDT | Areal Flood Advisory | JAX | 2 hr |
| Jun 25, 6:59 PM EDT | Special Weather Statement | JAX | 46 min |
| Jun 26, 6:34 PM EDT | Severe Thunderstorm Warning | JAX | 41 min |
| Jun 26, 7:16 PM EDT | Special Weather Statement | JAX | 44 min |
| Jun 27, 3:39 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 28, 2:36 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Jun 30, 1:03 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 2, 4:54 PM EDT | Special Weather Statement | JAX | 36 min |
| Jul 11, 2:51 PM EDT | River Flood Warning | JAX | 18 days |
| Jul 11, 4:28 PM EDT | Special Weather Statement | JAX | 47 min |
| Jul 13, 11:59 AM EDT | Areal Flood Advisory | JAX | 2 hr |
| Jul 13, 1:42 PM EDT | Special Weather Statement | JAX | 48 min |
| Jul 13, 1:57 PM EDT | Areal Flood Advisory | JAX | 2 hr |
| Jul 22, 2:15 PM EDT | Special Weather Statement | JAX | 45 min |
| Jul 22, 2:45 PM EDT | Severe Thunderstorm Warning | JAX | 45 min |
| Aug 12, 5:23 PM EDT | Severe Thunderstorm Warning | JAX | 52 min |
| Aug 12, 5:40 PM EDT | Areal Flood Advisory | JAX | 2 hr |
| Aug 12, 5:50 PM EDT | Special Weather Statement | JAX | 40 min |
| Aug 13, 4:13 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Aug 14, 2:18 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 14, 6:40 PM EDT | Severe Thunderstorm Warning | JAX | 50 min |
| Aug 14, 7:09 PM EDT | Special Weather Statement | JAX | 36 min |
| Aug 14, 7:29 PM EDT | Special Weather Statement | JAX | 46 min |
| Aug 14, 8:23 PM EDT | Special Weather Statement | JAX | 52 min |
| Aug 14, 9:11 PM EDT | Special Weather Statement | JAX | 49 min |
| Aug 14, 9:23 PM EDT | Areal Flood Advisory | JAX | 112 min |
| Aug 15, 3:15 PM EDT | Special Weather Statement | JAX | 45 min |
| Aug 15, 3:37 PM EDT | Areal Flood Advisory | JAX | 113 min |
| Aug 15, 4:44 PM EDT | Severe Thunderstorm Warning | JAX | 46 min |
| Aug 15, 4:52 PM EDT | Severe Thunderstorm Warning | JAX | 53 min |
| Aug 15, 5:24 PM EDT | Severe Thunderstorm Warning | JAX | 51 min |
| Aug 15, 5:26 PM EDT | Areal Flood Advisory | JAX | 2 hr |
| Aug 16, 3:47 AM EDT | Flash Flood Watch | JAX | 38 hr |
| Aug 16, 2:03 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 16, 6:53 PM EDT | Areal Flood Advisory | JAX | 112 min |
| Aug 16, 7:11 PM EDT | Special Weather Statement | JAX | 34 min |
| Aug 16, 7:26 PM EDT | Special Weather Statement | JAX | 49 min |
| Aug 17, 10:01 PM EDT | Special Weather Statement | JAX | 59 min |
| Aug 19, 2:19 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 20, 3:43 AM EDT | Flash Flood Watch | JAX | 17 hr |
| Aug 20, 9:56 AM EDT | River Flood Warning | JAX | 16 days |
| Aug 25, 2:58 AM EDT | Lake Wind Advisory | JAX | 11 hr |
| Sep 4, 3:13 PM EDT | Special Weather Statement | JAX | 32 min |
| Sep 4, 3:19 PM EDT | Special Weather Statement | JAX | 26 min |
| Sep 4, 3:49 PM EDT | Special Weather Statement | JAX | 26 min |
| Sep 4, 3:50 PM EDT | Special Weather Statement | JAX | 25 min |
| Sep 4, 4:02 PM EDT | Special Weather Statement | JAX | 43 min |
| Sep 4, 4:24 PM EDT | Special Weather Statement | JAX | 51 min |
| Sep 4, 4:33 PM EDT | Severe Thunderstorm Warning | JAX | 42 min |
| Sep 5, 3:24 PM EDT | Areal Flood Advisory | JAX | 2 hr |
| Sep 5, 3:54 PM EDT | Special Weather Statement | JAX | 36 min |
| Sep 11, 1:23 AM EDT | Areal Flood Advisory | JAX | 82 min |
| Sep 15, 3:48 PM EDT | Areal Flood Advisory | JAX | 117 min |
| Sep 17, 9:09 AM EDT | Special Weather Statement | JAX | 51 min |
| Sep 17, 9:45 AM EDT | Areal Flood Advisory | JAX | 60 min |
| Sep 17, 2:17 PM EDT | Lake Wind Advisory | JAX | 30 hr |
| Sep 17, 2:54 PM EDT | Special Weather Statement | JAX | 51 min |
| Sep 17, 3:14 PM EDT | Areal Flood Advisory | JAX | 91 min |
| Sep 18, 3:46 AM EDT | Coastal Flood Advisory | JAX | 24 hr |
| Sep 18, 3:46 AM EDT | Rip Current Statement | JAX | 24 hr |
| Sep 23, 6:07 PM EDT | Flood Watch | JAX | 40 hr |
| Sep 24, 5:38 AM EDT | Areal Flood Advisory | JAX | 112 min |
| Sep 27, 3:45 AM EDT | Lake Wind Advisory | JAX | 15 hr |
| Sep 28, 2:51 AM EDT | Lake Wind Advisory | JAX | 15 hr |
| Oct 4, 5:18 AM EDT | Dense Fog Advisory | JAX | 4 hr |
| Oct 5, 5:14 AM EDT | Dense Fog Advisory | JAX | 5 hr |
| Oct 6, 3:45 AM EDT | Dense Fog Advisory | JAX | 6 hr |
| Oct 7, 2:59 PM EDT | Special Weather Statement | JAX | 46 min |
| Oct 15, 3:53 AM EDT | Coastal Flood Advisory | JAX | 5 hr |
| Oct 15, 11:39 AM EDT | Coastal Flood Advisory | JAX | 9 hr |
| Oct 15, 8:36 PM EDT | Coastal Flood Advisory | JAX | 12 hr |
| Oct 16, 1:55 PM EDT | Coastal Flood Advisory | JAX | 8 hr |
| Oct 17, 3:51 AM EDT | Coastal Flood Advisory | JAX | 6 hr |
| Oct 17, 6:43 AM EDT | Dense Fog Advisory | JAX | 2 hr |
| Nov 1, 9:31 PM EDT | Mesoscale Discussion | SPC | 104 min |
| Nov 3, 2:21 PM EST | Rip Current Statement | JAX | 3 days |
| Nov 3, 2:21 PM EST | High Surf Advisory | JAX | 3 days |
| Nov 4, 3:37 AM EST | Lake Wind Advisory | JAX | 39 hr |
| Nov 4, 9:09 PM EST | Coastal Flood Advisory | JAX | 15 hr |
| Nov 6, 2:21 AM EST | Coastal Flood Advisory | JAX | 10 hr |
| Nov 8, 2:15 AM EST | Lake Wind Advisory | JAX | 17 hr |
| Nov 12, 1:22 AM EST | Dense Fog Advisory | JAX | 8 hr |
| Nov 12, 2:05 AM EST | Lake Wind Advisory | JAX | 41 hr |
| Nov 12, 7:49 PM EST | Wind Advisory | JAX | 19 hr |
| Nov 13, 2:29 AM EST | Rip Current Statement | JAX | 24 hr |
| Nov 13, 2:29 AM EST | High Surf Advisory | JAX | 24 hr |
| Nov 13, 3:05 AM EST | Freeze Warning | JAX | 29 hr |
| Nov 16, 1:34 AM EST | Dense Fog Advisory | JAX | 8 hr |
| Nov 19, 4:00 AM EST | Lake Wind Advisory | JAX | 16 hr |
| Nov 20, 3:09 AM EST | Lake Wind Advisory | JAX | 7 hr |
| Nov 20, 3:20 AM EST | Rip Current Statement | JAX | 25 hr |
| Nov 23, 9:50 AM EST | Rip Current Statement | JAX | 42 hr |
| Nov 24, 3:59 AM EST | Lake Wind Advisory | JAX | 34 hr |
| Nov 24, 4:06 AM EST | High Surf Advisory | JAX | 24 hr |
| Nov 25, 4:05 AM EST | Rip Current Statement | JAX | 14 hr |
| Nov 26, 9:15 AM EST | Wind Advisory | JAX | 11 hr |
| Nov 26, 12:32 PM EST | Freeze Watch | JAX | 25 hr |
| Nov 26, 5:40 PM EST | Tornado Watch | SPC | 7 hr |
| Nov 26, 7:48 PM EST | Mesoscale Discussion | SPC | 87 min |
| Nov 26, 8:32 PM EST | Wind Advisory | JAX | 7 hr |
| Nov 27, 4:01 AM EST | Freeze Warning | JAX | 29 hr |
| Nov 27, 4:01 AM EST | Lake Wind Advisory | JAX | 13 hr |
| Nov 28, 1:11 PM EST | Freeze Warning | JAX | 20 hr |
| Nov 29, 3:29 PM EST | Lake Wind Advisory | JAX | 3 hr |
| Nov 30, 3:56 AM EST | Rip Current Statement | JAX | 24 hr |
| Dec 8, 8:26 AM EST | Dense Fog Advisory | JAX | 94 min |
| Dec 8, 8:52 PM EST | Dense Fog Advisory | JAX | 14 hr |
| Dec 14, 7:56 PM EST | Mesoscale Discussion | SPC | 64 min |
| Dec 16, 2:30 PM EST | Frost Advisory | JAX | 18 hr |
| Dec 18, 12:51 PM EST | Frost Advisory | JAX | 19 hr |
| Dec 25, 11:01 AM EST | Lake Wind Advisory | JAX | 4 hr |
| Dec 29, 7:27 AM EST | Special Weather Statement | JAX | 33 min |
| Dec 29, 7:31 AM EST | Special Weather Statement | JAX | 29 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 | 12 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 3 |
| Tornado Watch | 5 |
| Mesoscale Discussion | 25 |
| Special Weather Statement | 52 |
| Flooding | |
| River Flood Warning | 4 |
| Flash Flood Watch | 2 |
| Flood Watch | 4 |
| Areal Flood Advisory | 21 |
| Cold | |
| Freeze Warning | 6 |
| Hard Freeze Warning | 2 |
| Freeze Watch | 3 |
| Hard Freeze Watch | 1 |
| Frost Advisory | 5 |
| Wind and dust | |
| Lake Wind Advisory | 30 |
| Wind Advisory | 9 |
| Fog and smoke | |
| Dense Fog Advisory | 15 |
| Tropical | |
| Tropical Storm Warning | 2 |
| Tropical Storm Watch | 2 |
| Coast and beach | |
| Coastal Flood Advisory | 9 |
| High Surf Advisory | 4 |
| Rip Current Statement | 11 |
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.