Alert archive / North Carolina / Johnston County
Weather alerts in Johnston County, North Carolina, 2008
221 weather alerts in 2008, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Johnston County and its neighbors
Each county as a circle sized by its count in 2008. Tap one for its archive.
- Alerts
- 221
- Warnings
- 87
- Watches
- 37
- Advisories
- 38
- Busiest month
- July36 alerts
- Busiest day
- August 27, 200811 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
4 of 8 tornado warnings covering Johnston County in 2008 had a tornado report inside them; 7 of 7 tornado reports fell inside a warning, on average 28 minutes after it went out.
Johnston County, 2008
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 8 | 4 | 50% | 7 | 100% | 28 min |
| Severe thunderstorm warnings | 59 | 32 | 46% | 29 | 86% | 18 min |
| Flash flood warnings | 6 | 2 | 67% | 0 |
Each office's whole area, 2008
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Raleigh, NC: tornado warnings | 62 | 15 | 76% | 41 | 85% | 17 min |
| NWS Raleigh, NC: severe thunderstorm warnings | 469 | 256 | 45% | 483 | 87% | 23 min |
| NWS Raleigh, NC: flash flood warnings | 84 | 50 | 40% | 89 | 90% | 76 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 1, 3:13 PM EST | Red Flag Warning | RAH | 26 hr |
| Jan 7, 2:14 AM EST | Dense Fog Advisory | RAH | 7 hr |
| Jan 8, 3:36 AM EST | Dense Fog Advisory | RAH | 6 hr |
| Jan 11, 5:01 AM EST | Mesoscale Discussion | SPC | 59 min |
| Jan 16, 3:08 AM EST | Winter Weather Advisory | RAH | 30 hr |
| Jan 18, 4:39 PM EST | Winter Storm Warning | RAH | 31 hr |
| Feb 5, 3:15 AM EST | Dense Fog Advisory | RAH | 6 hr |
| Feb 9, 5:15 AM EST | Fire Weather Watch | RAH | 10 hr |
| Feb 9, 3:02 PM EST | Red Flag Warning | RAH | 30 hr |
| Feb 18, 2:30 AM EST | Tornado Watch | SPC | 7 hr |
| Feb 19, 4:29 PM EST | Red Flag Warning | RAH | 27 hr |
| Mar 4, 6:33 AM EST | Mesoscale Discussion | SPC | 87 min |
| Mar 4, 3:39 PM EST | Severe Thunderstorm Warning | RAH | 36 min |
| Mar 4, 4:31 PM EST | Tornado Watch | SPC | 8 hr |
| Mar 4, 9:56 PM EST | Mesoscale Discussion | SPC | 64 min |
| Mar 4, 10:49 PM EST | Severe Thunderstorm Warning | RAH | 56 min |
| Mar 7, 3:00 PM EST | Wind Advisory | RAH | 27 hr |
| Mar 8, 6:12 AM EST | Tornado Watch | SPC | 6 hr |
| Mar 15, 4:36 PM EDT | Tornado Watch | SPC | 8 hr |
| Mar 15, 7:41 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Mar 15, 9:49 PM EDT | Mesoscale Discussion | SPC | 56 min |
| Mar 27, 11:22 AM EDT | Red Flag Warning | RAH | 10 hr |
| Apr 1, 5:51 PM EDT | Severe Thunderstorm Warning | RAH | 27 min |
| Apr 4, 8:35 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Apr 4, 11:42 PM EDT | Severe Thunderstorm Warning | RAH | 33 min |
| Apr 10, 6:39 AM EDT | Dense Fog Advisory | RAH | 3 hr |
| Apr 11, 6:47 AM EDT | Dense Fog Advisory | RAH | 2 hr |
| Apr 12, 9:48 AM EDT | Mesoscale Discussion | SPC | 117 min |
| Apr 12, 1:48 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Apr 12, 2:12 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Apr 12, 2:30 PM EDT | Severe Thunderstorm Warning | RAH | 45 min |
| Apr 12, 3:08 PM EDT | Tornado Warning | RAH | 32 min |
| Apr 12, 3:39 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 15, 3:50 PM EDT | Frost Advisory | RAH | 16 hr |
| Apr 16, 2:57 PM EDT | Frost Advisory | RAH | 17 hr |
| Apr 20, 1:14 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 20, 1:47 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Apr 20, 4:20 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Apr 20, 7:14 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Apr 21, 11:14 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 21, 4:50 PM EDT | Severe Thunderstorm Warning | RAH | 40 min |
| Apr 27, 4:53 PM EDT | Mesoscale Discussion | SPC | 67 min |
| Apr 27, 7:31 PM EDT | Severe Thunderstorm Warning | RAH | 44 min |
| Apr 27, 8:25 PM EDT | Severe Thunderstorm Warning | RAH | 50 min |
| Apr 27, 8:54 PM EDT | Severe Thunderstorm Warning | RAH | 51 min |
| Apr 28, 12:50 PM EDT | Mesoscale Discussion | SPC | 55 min |
| May 5, 1:08 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 9, 3:00 AM EDT | Tornado Watch | SPC | 8 hr |
| May 9, 5:04 AM EDT | Mesoscale Discussion | SPC | 56 min |
| May 9, 10:41 PM EDT | Mesoscale Discussion | SPC | 64 min |
| May 9, 11:08 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| May 9, 11:29 PM EDT | Severe Thunderstorm Warning | RAH | 46 min |
| May 9, 11:43 PM EDT | Severe Thunderstorm Warning | RAH | 27 min |
| May 10, 12:07 AM EDT | Severe Thunderstorm Warning | RAH | 38 min |
| May 10, 12:58 AM EDT | Severe Thunderstorm Warning | RAH | 47 min |
| May 10, 2:02 AM EDT | Mesoscale Discussion | SPC | 88 min |
| May 11, 1:39 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 11, 2:07 PM EDT | Tornado Watch | SPC | 6 hr |
| May 11, 4:18 PM EDT | Mesoscale Discussion | SPC | 87 min |
| May 11, 7:47 PM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| May 11, 10:06 PM EDT | Severe Thunderstorm Warning | RAH | 54 min |
| May 20, 1:09 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 20, 4:38 PM EDT | Mesoscale Discussion | SPC | 67 min |
| May 20, 5:18 PM EDT | Tornado Warning | RAH | 33 min |
| May 20, 5:46 PM EDT | Severe Thunderstorm Warning | RAH | 36 min |
| May 20, 6:44 PM EDT | Severe Thunderstorm Warning | RAH | 32 min |
| May 20, 7:09 PM EDT | Severe Thunderstorm Warning | RAH | 35 min |
| May 31, 7:37 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Jun 1, 6:09 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jun 1, 7:15 PM EDT | Severe Thunderstorm Warning | RAH | 45 min |
| Jun 1, 7:52 PM EDT | Severe Thunderstorm Warning | RAH | 53 min |
| Jun 1, 7:57 PM EDT | Severe Thunderstorm Warning | RAH | 63 min |
| Jun 5, 3:00 AM EDT | Heat Advisory | RAH | 17 hr |
| Jun 6, 3:13 AM EDT | Heat Advisory | RAH | 17 hr |
| Jun 6, 3:33 PM EDT | Heat Advisory | RAH | 28 hr |
| Jun 7, 2:24 PM EDT | Heat Advisory | RAH | 30 hr |
| Jun 8, 2:58 PM EDT | Heat Advisory | RAH | 29 hr |
| Jun 9, 3:43 PM EDT | Heat Advisory | RAH | 28 hr |
| Jun 11, 4:55 PM EDT | Severe Thunderstorm Warning | RAH | 50 min |
| Jun 11, 5:55 PM EDT | Severe Thunderstorm Warning | RAH | 50 min |
| Jun 11, 6:37 PM EDT | Severe Thunderstorm Warning | RAH | 53 min |
| Jun 11, 7:24 PM EDT | Severe Thunderstorm Warning | RAH | 32 min |
| Jun 12, 12:23 PM EDT | Dense Smoke Advisory | RAH | 20 hr |
| Jun 14, 6:12 PM EDT | Severe Thunderstorm Warning | RAH | 37 min |
| Jun 14, 6:28 PM EDT | Severe Thunderstorm Warning | RAH | 47 min |
| Jun 14, 7:29 PM EDT | Severe Thunderstorm Warning | RAH | 46 min |
| Jun 14, 7:46 PM EDT | Severe Thunderstorm Warning | RAH | 44 min |
| Jun 14, 8:31 PM EDT | Severe Thunderstorm Warning | RAH | 44 min |
| Jun 14, 9:57 PM EDT | Severe Thunderstorm Warning | RAH | 63 min |
| Jun 14, 10:17 PM EDT | Areal Flood Advisory | RAH | 3 hr |
| Jun 20, 2:27 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 20, 4:35 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Jun 22, 4:45 PM EDT | Severe Thunderstorm Warning | RAH | 45 min |
| Jun 22, 5:28 PM EDT | Severe Thunderstorm Warning | RAH | 62 min |
| Jun 22, 6:08 PM EDT | Severe Thunderstorm Warning | RAH | 37 min |
| Jun 23, 2:54 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 28, 6:45 PM EDT | Severe Thunderstorm Warning | RAH | 25 min |
| Jun 29, 1:35 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 29, 4:46 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Jun 29, 8:35 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Jun 29, 9:00 PM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jun 29, 11:41 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jul 4, 9:47 PM EDT | Severe Thunderstorm Warning | RAH | 43 min |
| Jul 6, 4:11 PM EDT | Severe Thunderstorm Warning | RAH | 49 min |
| Jul 6, 4:37 PM EDT | Severe Thunderstorm Warning | RAH | 38 min |
| Jul 6, 5:15 PM EDT | Severe Thunderstorm Warning | RAH | 45 min |
| Jul 6, 5:55 PM EDT | Areal Flood Advisory | RAH | 3 hr |
| Jul 6, 6:58 PM EDT | Severe Thunderstorm Warning | RAH | 47 min |
| Jul 8, 12:34 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Jul 8, 1:03 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 8, 1:24 PM EDT | Severe Thunderstorm Warning | RAH | 51 min |
| Jul 8, 2:14 PM EDT | Severe Thunderstorm Warning | RAH | 46 min |
| Jul 8, 2:22 PM EDT | Severe Thunderstorm Warning | RAH | 38 min |
| Jul 8, 3:13 PM EDT | Severe Thunderstorm Warning | RAH | 36 min |
| Jul 8, 6:34 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 8, 8:34 PM EDT | Severe Thunderstorm Warning | RAH | 56 min |
| Jul 8, 9:11 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Jul 9, 4:37 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 9, 6:41 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jul 9, 6:56 PM EDT | Severe Thunderstorm Warning | RAH | 49 min |
| Jul 12, 3:58 AM EDT | Dense Fog Advisory | RAH | 5 hr |
| Jul 22, 11:15 AM EDT | Heat Advisory | RAH | 8 hr |
| Jul 22, 4:32 PM EDT | Severe Thunderstorm Warning | RAH | 43 min |
| Jul 22, 4:49 PM EDT | Areal Flood Advisory | RAH | 2 hr |
| Jul 22, 5:14 PM EDT | Severe Thunderstorm Warning | RAH | 46 min |
| Jul 22, 5:23 PM EDT | Flash Flood Warning | RAH | 58 min |
| Jul 22, 5:46 PM EDT | Severe Thunderstorm Warning | RAH | 21 min |
| Jul 23, 12:44 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 23, 2:08 PM EDT | Severe Thunderstorm Warning | RAH | 41 min |
| Jul 23, 3:54 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Jul 23, 7:28 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Jul 27, 1:04 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 27, 1:26 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 28, 1:32 AM EDT | Mesoscale Discussion | SPC | 88 min |
| Jul 31, 1:53 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 31, 3:31 PM EDT | Severe Thunderstorm Warning | RAH | 44 min |
| Jul 31, 4:15 PM EDT | Severe Thunderstorm Warning | RAH | 29 min |
| Jul 31, 4:27 PM EDT | Mesoscale Discussion | SPC | 63 min |
| Aug 2, 12:02 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 2, 2:30 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Aug 2, 4:21 PM EDT | Severe Thunderstorm Warning | RAH | 39 min |
| Aug 2, 6:26 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Aug 2, 7:22 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 7, 1:43 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Aug 7, 2:10 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 7, 3:22 PM EDT | Severe Thunderstorm Warning | RAH | 38 min |
| Aug 10, 3:20 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Aug 11, 1:18 AM EDT | Areal Flood Advisory | RAH | 3 hr |
| Aug 14, 2:37 AM EDT | Dense Fog Advisory | RAH | 6 hr |
| Aug 15, 3:56 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Aug 26, 4:10 PM EDT | Mesoscale Discussion | SPC | 65 min |
| Aug 27, 8:44 AM EDT | Mesoscale Discussion | SPC | 91 min |
| Aug 27, 9:16 AM EDT | Tornado Watch | SPC | 8 hr |
| Aug 27, 10:07 AM EDT | Areal Flood Advisory | RAH | 3 hr |
| Aug 27, 10:45 AM EDT | Tornado Warning | RAH | 30 min |
| Aug 27, 11:00 AM EDT | Flash Flood Warning | RAH | 3 hr |
| Aug 27, 12:24 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Aug 27, 1:41 PM EDT | Tornado Warning | RAH | 34 min |
| Aug 27, 2:10 PM EDT | Tornado Warning | RAH | 35 min |
| Aug 27, 2:34 PM EDT | Mesoscale Discussion | SPC | 56 min |
| Aug 27, 4:01 PM EDT | Areal Flood Advisory | RAH | 3 hr |
| Aug 27, 4:26 PM EDT | Mesoscale Discussion | SPC | 34 min |
| Aug 28, 1:49 AM EDT | Areal Flood Advisory | RAH | 80 min |
| Aug 28, 2:56 AM EDT | Mesoscale Discussion | SPC | 94 min |
| Aug 29, 7:52 PM EDT | Areal Flood Advisory | RAH | 3 hr |
| Aug 29, 8:17 PM EDT | Flash Flood Warning | RAH | 48 min |
| Aug 31, 4:35 PM EDT | Severe Thunderstorm Warning | RAH | 40 min |
| Sep 5, 4:18 AM EDT | High Wind Watch | RAH | 11 hr |
| Sep 5, 3:11 PM EDT | Flash Flood Watch | RAH | 21 hr |
| Sep 5, 3:40 PM EDT | High Wind Warning | RAH | 20 hr |
| Sep 5, 4:39 PM EDT | Tornado Watch | SPC | 12 hr |
| Sep 5, 9:06 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Sep 6, 1:31 AM EDT | Flash Flood Warning | RAH | 6 hr |
| Sep 6, 7:27 AM EDT | Flash Flood Warning | RAH | 3 hr |
| Sep 6, 10:10 AM EDT | Flash Flood Warning | RAH | 110 min |
| Sep 6, 11:14 AM EDT | River Flood Warning | RAH | 29 hr |
| Sep 6, 11:19 AM EDT | River Flood Warning | RAH | 48 hr |
| Sep 6, 12:41 PM EDT | Areal Flood Warning | RAH | 3 hr |
| Sep 9, 1:41 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Sep 9, 2:05 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 9, 3:22 PM EDT | Severe Thunderstorm Warning | RAH | 41 min |
| Sep 9, 4:49 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Sep 9, 6:19 PM EDT | Areal Flood Advisory | RAH | 59 min |
| Sep 10, 11:05 AM EDT | Flash Flood Watch | RAH | 13 hr |
| Sep 24, 3:39 PM EDT | Wind Advisory | RAH | 35 hr |
| Sep 26, 12:27 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Oct 1, 3:20 AM EDT | Severe Thunderstorm Warning | RAH | 34 min |
| Oct 1, 3:54 AM EDT | Mesoscale Discussion | SPC | 96 min |
| Oct 1, 12:28 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Oct 1, 1:40 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Oct 1, 2:20 PM EDT | Severe Thunderstorm Warning | RAH | 40 min |
| Oct 1, 2:59 PM EDT | Severe Thunderstorm Warning | RAH | 34 min |
| Oct 1, 3:08 PM EDT | Tornado Warning | RAH | 52 min |
| Oct 19, 3:53 AM EDT | Frost Advisory | RAH | 28 hr |
| Oct 22, 3:22 AM EDT | Frost Advisory | RAH | 30 hr |
| Oct 28, 4:02 AM EDT | Freeze Warning | RAH | 29 hr |
| Oct 29, 10:29 AM EDT | Frost Advisory | RAH | 5 hr |
| Oct 29, 3:49 PM EDT | Freeze Warning | RAH | 17 hr |
| Nov 14, 11:53 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Nov 15, 12:24 AM EST | Tornado Watch | SPC | 9 hr |
| Nov 15, 2:28 AM EST | Tornado Warning | RAH | 47 min |
| Nov 15, 3:08 AM EST | Tornado Warning | RAH | 52 min |
| Nov 15, 3:10 AM EST | Mesoscale Discussion | SPC | 95 min |
| Nov 15, 4:10 AM EST | Mesoscale Discussion | SPC | 65 min |
| Nov 15, 12:29 PM EST | Mesoscale Discussion | SPC | 61 min |
| Nov 15, 1:25 PM EST | Tornado Watch | SPC | 7 hr |
| Dec 10, 3:09 PM EST | Flash Flood Watch | RAH | 29 hr |
| Dec 11, 10:01 AM EST | Mesoscale Discussion | SPC | 119 min |
| Dec 11, 11:00 AM EST | Tornado Watch | SPC | 8 hr |
| Dec 11, 1:28 PM EST | Mesoscale Discussion | SPC | 92 min |
| Dec 11, 3:14 PM EST | Severe Thunderstorm Warning | RAH | 37 min |
| Dec 11, 3:49 PM EST | Areal Flood Advisory | RAH | 3 hr |
| Dec 11, 3:57 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Dec 11, 6:58 PM EST | Areal Flood Advisory | RAH | 3 hr |
| Dec 12, 7:40 AM EST | River Flood Warning | RAH | 3 hr |
| Dec 12, 7:40 AM EST | River Flood Warning | RAH | 23 hr |
| Dec 16, 5:43 AM EST | Dense Fog Advisory | RAH | 6 hr |
| Dec 18, 2:50 PM EST | Dense Fog Advisory | RAH | 20 hr |
| Dec 27, 5:34 PM EST | Dense Fog Advisory | RAH | 12 hr |
| Dec 31, 3:29 AM EST | Wind Advisory | RAH | 12 hr |
| Dec 31, 11:37 AM EST | Red Flag Warning | RAH | 6 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 | 59 |
| Tornado Warning | 8 |
| Severe Thunderstorm Watch | 21 |
| Tornado Watch | 11 |
| Mesoscale Discussion | 59 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 6 |
| River Flood Warning | 4 |
| Flash Flood Watch | 3 |
| Areal Flood Advisory | 11 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Weather Advisory | 1 |
| Heat | |
| Heat Advisory | 7 |
| Cold | |
| Freeze Warning | 2 |
| Frost Advisory | 5 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 1 |
| Wind Advisory | 3 |
| Fire | |
| Red Flag Warning | 5 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 10 |
| Dense Smoke Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20072009
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.