Alert archive / Mississippi / Harrison County
Weather alerts in Harrison County, Mississippi, 2026
223 weather alerts in 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Harrison County and its neighbors
Each county as a circle sized by its count in 2026. Tap one for its archive.
- Alerts
- 223
- Warnings
- 78
- Watches
- 22
- Advisories
- 69
- Busiest month
- June56 alerts
- Busiest day
- June 18, 202626 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
2 of 6 tornado warnings covering Harrison County in 2026 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 1 minutes after it went out.
Harrison County, 2026
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 6 | 2 | 67% | 1 | 100% | 1 min |
| Severe thunderstorm warnings | 18 | 10 | 44% | 22 | 36% | 19 min |
| Flash flood warnings | 17 | 14 | 18% | 22 | 86% | 73 min |
Each office's whole area, 2026
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS New Orleans, LA: tornado warnings | 88 | 26 | 70% | 54 | 67% | 15 min |
| NWS New Orleans, LA: severe thunderstorm warnings | 180 | 96 | 47% | 249 | 74% | 19 min |
| NWS New Orleans, LA: flash flood warnings | 119 | 78 | 34% | 166 | 93% | 87 min |
An office's figures cover every county it serves, including across state lines.
The year is still running; reports filed late and damage surveys can still change these figures.
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 6, 12:01 AM CST | Dense Fog Advisory | LIX | 9 hr |
| Jan 6, 1:16 PM CST | Dense Fog Advisory | LIX | 21 hr |
| Jan 7, 11:02 AM CST | Dense Fog Advisory | LIX | 20 hr |
| Jan 22, 8:34 PM CST | Dense Fog Advisory | LIX | 11 hr |
| Jan 23, 11:23 AM CST | Extreme Cold Watch | LIX | 24 hr |
| Jan 24, 11:16 AM CST | Extreme Cold Warning | LIX | 71 hr |
| Jan 24, 9:39 PM CST | Dense Fog Advisory | LIX | 10 hr |
| Jan 25, 9:23 AM CST | Special Weather Statement | LIX | 37 min |
| Jan 25, 9:35 AM CST | Special Weather Statement | LIX | 25 min |
| Jan 28, 11:00 PM CST | Extreme Cold Watch | LIX | 11 hr |
| Jan 29, 9:32 AM CST | Extreme Cold Warning | LIX | 3 days |
| Jan 29, 10:14 PM CST | Wind Advisory | LIX | 50 hr |
| Feb 1, 11:15 AM CST | Cold Weather Advisory | LIX | 22 hr |
| Feb 4, 11:55 AM CST | Cold Weather Advisory | LIX | 20 hr |
| Feb 9, 11:39 AM CST | Dense Fog Advisory | LIX | 21 hr |
| Feb 10, 12:42 PM CST | Dense Fog Advisory | LIX | 17 hr |
| Feb 12, 9:07 PM CST | Dense Fog Advisory | LIX | 12 hr |
| Feb 13, 11:04 AM CST | Dense Fog Advisory | LIX | 22 hr |
| Feb 14, 10:43 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 14, 11:17 PM CST | Tornado Watch | SPC | 6 hr |
| Feb 15, 1:15 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 15, 1:24 AM CST | Severe Thunderstorm Warning | LIX | 48 min |
| Feb 15, 2:11 AM CST | Special Weather Statement | LIX | 64 min |
| Feb 18, 10:04 PM CST | Dense Fog Advisory | LIX | 11 hr |
| Feb 21, 10:10 AM CST | Red Flag Warning | LIX | 32 hr |
| Feb 21, 10:21 AM CST | Wind Advisory | LIX | 29 hr |
| Feb 22, 11:43 AM CST | Red Flag Warning | LIX | 30 hr |
| Feb 23, 10:42 AM CST | Freeze Warning | LIX | 22 hr |
| Feb 28, 1:27 AM CST | Dense Fog Advisory | LIX | 9 hr |
| Feb 28, 8:12 PM CST | Dense Fog Advisory | LIX | 22 min |
| Feb 28, 8:36 PM CST | Dense Fog Advisory | LIX | 12 hr |
| Mar 2, 8:44 PM CST | Dense Fog Advisory | LIX | 12 hr |
| Mar 8, 11:39 AM CDT | Dense Fog Advisory | LIX | 21 hr |
| Mar 11, 6:56 PM CDT | Tornado Watch | SPC | 7 hr |
| Mar 11, 9:39 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 11, 10:47 PM CDT | Severe Thunderstorm Warning | LIX | 43 min |
| Mar 11, 10:59 PM CDT | Tornado Warning | LIX | 12 min |
| Mar 14, 11:00 PM CDT | Wind Advisory | LIX | 44 hr |
| Mar 15, 5:37 PM CDT | Freeze Watch | LIX | 18 hr |
| Mar 15, 8:28 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 15, 9:28 PM CDT | Tornado Watch | SPC | 7 hr |
| Mar 16, 2:11 AM CDT | Special Weather Statement | LIX | 64 min |
| Mar 16, 3:16 AM CDT | Special Weather Statement | LIX | 59 min |
| Mar 16, 11:55 AM CDT | Freeze Warning | LIX | 21 hr |
| Mar 17, 12:27 PM CDT | Freeze Warning | LIX | 20 hr |
| Mar 26, 10:42 AM CDT | Dense Fog Advisory | LIX | 22 hr |
| Mar 26, 12:10 PM CDT | Fire Weather Watch | LIX | 23 hr |
| Mar 27, 11:07 AM CDT | Red Flag Warning | LIX | 32 hr |
| Apr 5, 1:18 AM CDT | Special Weather Statement | LIX | 57 min |
| Apr 5, 3:16 AM CDT | Areal Flood Advisory | LIX | 81 min |
| Apr 5, 4:37 AM CDT | Flash Flood Warning | LIX | 113 min |
| Apr 11, 5:17 AM CDT | Dense Fog Advisory | LIX | 4 hr |
| Apr 25, 6:17 AM CDT | Special Weather Statement | LIX | 43 min |
| Apr 25, 6:25 AM CDT | Tornado Warning | LIX | 20 min |
| Apr 25, 6:38 AM CDT | Severe Thunderstorm Warning | LIX | 44 min |
| Apr 26, 7:47 AM CDT | Mesoscale Discussion | SPC | 88 min |
| Apr 26, 9:28 AM CDT | Special Weather Statement | LIX | 32 min |
| Apr 26, 9:59 AM CDT | Special Weather Statement | LIX | 31 min |
| Apr 29, 1:19 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Apr 29, 5:43 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 29, 7:49 PM CDT | Severe Thunderstorm Warning | LIX | 17 min |
| Apr 29, 8:07 PM CDT | Special Weather Statement | LIX | 53 min |
| May 6, 10:58 PM CDT | Tornado Watch | SPC | 9 hr |
| May 7, 1:38 AM CDT | Mesoscale Discussion | SPC | 97 min |
| May 9, 1:43 AM CDT | Special Weather Statement | LIX | 17 min |
| May 9, 7:49 AM CDT | Severe Thunderstorm Warning | LIX | 41 min |
| May 9, 8:25 AM CDT | Special Weather Statement | LIX | 50 min |
| May 9, 9:07 AM CDT | Areal Flood Advisory | LIX | 113 min |
| May 9, 7:44 PM CDT | River Flood Warning | LIX | 48 hr |
| May 9, 7:44 PM CDT | River Flood Warning | LIX | 19 hr |
| May 10, 3:39 AM CDT | Dense Fog Advisory | LIX | 5 hr |
| May 11, 3:19 AM CDT | Dense Fog Advisory | LIX | 6 hr |
| May 11, 10:06 PM CDT | Areal Flood Advisory | LIX | 3 hr |
| May 11, 11:12 PM CDT | Areal Flood Advisory | LIX | 3 hr |
| May 12, 2:53 PM CDT | River Flood Warning | LIX | 15 hr |
| May 13, 3:58 AM CDT | River Flood Warning | LIX | 24 hr |
| May 21, 4:42 PM CDT | Tornado Warning | LIX | 14 min |
| May 21, 5:55 PM CDT | Special Weather Statement | LIX | 50 min |
| May 21, 6:13 PM CDT | Flash Flood Warning | LIX | 3 hr |
| May 21, 6:56 PM CDT | Special Weather Statement | LIX | 49 min |
| May 21, 9:52 PM CDT | Areal Flood Advisory | LIX | 3 hr |
| May 22, 2:38 AM CDT | Areal Flood Advisory | LIX | 3 hr |
| May 22, 9:55 AM CDT | River Flood Warning | LIX | 6 days |
| May 22, 9:55 AM CDT | River Flood Warning | LIX | 9 days |
| May 22, 11:28 AM CDT | Areal Flood Advisory | LIX | 3 hr |
| May 22, 1:21 PM CDT | Areal Flood Advisory | LIX | 3 hr |
| May 22, 1:40 PM CDT | Flash Flood Warning | LIX | 3 hr |
| May 22, 4:54 PM CDT | Special Weather Statement | LIX | 66 min |
| May 22, 5:13 PM CDT | Areal Flood Advisory | LIX | 3 hr |
| May 22, 7:28 PM CDT | River Flood Warning | LIX | 32 hr |
| May 23, 9:04 AM CDT | Flood Watch | LIX | 58 hr |
| May 25, 6:33 AM CDT | Areal Flood Advisory | LIX | 3 hr |
| May 25, 6:42 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 25, 6:50 AM CDT | Special Weather Statement | LIX | 25 min |
| May 25, 10:17 AM CDT | Areal Flood Advisory | LIX | 16 min |
| May 25, 10:33 AM CDT | Flash Flood Warning | LIX | 6 hr |
| May 25, 1:13 PM CDT | Flood Watch | LIX | 30 hr |
| May 25, 4:31 PM CDT | Areal Flood Advisory | LIX | 105 min |
| May 25, 4:44 PM CDT | River Flood Warning | LIX | 17 hr |
| May 26, 11:19 AM CDT | Flood Watch | LIX | 32 hr |
| May 26, 1:33 PM CDT | Areal Flood Advisory | LIX | 3 hr |
| May 28, 11:54 AM CDT | Areal Flood Advisory | LIX | 3 hr |
| May 28, 12:55 PM CDT | River Flood Warning | LIX | 56 hr |
| May 29, 6:59 AM CDT | River Flood Warning | LIX | 8 hr |
| May 31, 7:36 PM CDT | Special Weather Statement | LIX | 24 min |
| May 31, 8:02 PM CDT | Areal Flood Advisory | LIX | 3 hr |
| Jun 2, 11:11 AM CDT | Coastal Flood Advisory | LIX | 3 days |
| Jun 6, 10:26 AM CDT | River Flood Warning | LIX | 61 hr |
| Jun 6, 10:30 AM CDT | River Flood Warning | LIX | 52 hr |
| Jun 6, 12:02 PM CDT | Areal Flood Advisory | LIX | 77 min |
| Jun 6, 1:19 PM CDT | Flash Flood Warning | LIX | 5 hr |
| Jun 6, 3:44 PM CDT | Flash Flood Warning | LIX | 3 hr |
| Jun 6, 6:44 PM CDT | Flash Flood Warning | LIX | 4 hr |
| Jun 14, 8:27 PM CDT | Flood Watch | LIX | 4 days |
| Jun 15, 7:01 AM CDT | Areal Flood Advisory | LIX | 119 min |
| Jun 15, 7:12 AM CDT | Flash Flood Warning | LIX | 3 hr |
| Jun 15, 3:35 PM CDT | Special Weather Statement | LIX | 40 min |
| Jun 16, 9:16 AM CDT | Mesoscale Discussion | SPC | 119 min |
| Jun 16, 2:09 PM CDT | Areal Flood Warning | LIX | 3 hr |
| Jun 16, 8:28 PM CDT | River Flood Warning | LIX | 6 days |
| Jun 17, 8:50 AM CDT | River Flood Warning | LIX | 5 days |
| Jun 17, 7:43 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 17, 10:23 PM CDT | Tornado Watch | SPC | 10 hr |
| Jun 18, 2:04 AM CDT | Mesoscale Discussion | SPC | 116 min |
| Jun 18, 5:12 AM CDT | Mesoscale Discussion | SPC | 63 min |
| Jun 18, 6:44 AM CDT | Flash Flood Warning | LIX | 5 hr |
| Jun 18, 7:16 AM CDT | Tornado Warning | LIX | 14 min |
| Jun 18, 7:42 AM CDT | Severe Thunderstorm Warning | LIX | 63 min |
| Jun 18, 7:55 AM CDT | Tornado Watch | SPC | 9 hr |
| Jun 18, 7:56 AM CDT | Tornado Warning | LIX | 29 min |
| Jun 18, 7:57 AM CDT | River Flood Warning | LIX | 4 days |
| Jun 18, 8:16 AM CDT | Tornado Warning | LIX | 24 min |
| Jun 18, 8:43 AM CDT | Severe Thunderstorm Warning | LIX | 62 min |
| Jun 18, 9:03 AM CDT | Mesoscale Discussion | SPC | 87 min |
| Jun 18, 10:56 AM CDT | Severe Thunderstorm Warning | LIX | 34 min |
| Jun 18, 10:58 AM CDT | Heat Advisory | LIX | 32 hr |
| Jun 18, 11:31 AM CDT | Flash Flood Warning | LIX | 4 hr |
| Jun 18, 11:40 AM CDT | Severe Thunderstorm Warning | LIX | 65 min |
| Jun 18, 11:54 AM CDT | Areal Flood Advisory | LIX | 28 min |
| Jun 18, 12:20 PM CDT | Flash Flood Warning | LIX | 6 hr |
| Jun 18, 12:21 PM CDT | Severe Thunderstorm Warning | LIX | 54 min |
| Jun 18, 12:46 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Jun 18, 1:16 PM CDT | Severe Thunderstorm Warning | LIX | 44 min |
| Jun 18, 1:39 PM CDT | Severe Thunderstorm Warning | LIX | 66 min |
| Jun 18, 3:33 PM CDT | Areal Flood Warning | LIX | 3 hr |
| Jun 18, 6:28 PM CDT | Areal Flood Warning | LIX | 3 hr |
| Jun 18, 6:36 PM CDT | Areal Flood Warning | LIX | 3 hr |
| Jun 19, 5:14 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jun 19, 9:25 PM CDT | Flash Flood Warning | LIX | 4 hr |
| Jun 19, 9:48 PM CDT | Flash Flood Warning | LIX | 4 hr |
| Jun 19, 10:36 PM CDT | Flash Flood Warning | LIX | 3 hr |
| Jun 20, 3:26 AM CDT | Heat Advisory | LIX | 10 hr |
| Jun 20, 1:59 PM CDT | Flash Flood Warning | LIX | 3 hr |
| Jun 20, 3:22 PM CDT | Areal Flood Advisory | LIX | 105 min |
| Jun 24, 2:57 PM CDT | Severe Thunderstorm Warning | LIX | 51 min |
| Jun 24, 3:44 PM CDT | Areal Flood Advisory | LIX | 3 hr |
| Jun 25, 3:47 PM CDT | Special Weather Statement | LIX | 28 min |
| Jun 25, 4:41 PM CDT | Special Weather Statement | LIX | 34 min |
| Jun 30, 12:51 AM CDT | Heat Advisory | LIX | 17 hr |
| Jun 30, 1:05 PM CDT | Heat Advisory | LIX | 29 hr |
| Jul 12, 3:04 PM CDT | Areal Flood Advisory | LIX | 3 hr |
| Jul 12, 3:14 PM CDT | Special Weather Statement | LIX | 31 min |
| Jul 12, 3:52 PM CDT | Special Weather Statement | LIX | 38 min |
| Jul 18, 1:20 AM CDT | Heat Advisory | LIX | 17 hr |
| Jul 18, 10:11 AM CDT | Heat Advisory | LIX | 32 hr |
| Jul 19, 12:02 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Jul 19, 12:11 PM CDT | Heat Advisory | LIX | 31 hr |
| Jul 20, 10:02 AM CDT | Heat Advisory | LIX | 33 hr |
| Jul 20, 10:02 AM CDT | Storm Surge Watch | LIX | 24 hr |
| Jul 20, 10:02 AM CDT | Tropical Storm Watch | LIX | 63 hr |
| Jul 20, 9:58 PM CDT | Tropical Storm Warning | LIX | 60 hr |
| Jul 21, 10:12 AM CDT | Coastal Flood Warning | LIX | 48 hr |
| Jul 21, 12:32 PM CDT | Heat Advisory | LIX | 24 hr |
| Jul 26, 9:02 AM CDT | Heat Advisory | LIX | 35 hr |
| Jul 26, 9:02 AM CDT | Heat Advisory | LIX | 59 hr |
| Jul 26, 9:02 AM CDT | Extreme Heat Watch | LIX | 26 hr |
| Jul 27, 11:16 AM CDT | Extreme Heat Warning | LIX | 33 hr |
| Jul 28, 1:45 PM CDT | Heat Advisory | LIX | 30 hr |
| Jul 28, 1:45 PM CDT | Extreme Heat Warning | LIX | 30 hr |
| Jul 29, 12:33 PM CDT | Heat Advisory | LIX | 30 hr |
| Jul 31, 12:20 AM CDT | Heat Advisory | LIX | 19 hr |
| Aug 7, 3:00 PM CDT | Severe Thunderstorm Warning | LIX | 45 min |
| Aug 12, 12:31 PM CDT | Heat Advisory | LIX | 31 hr |
| Aug 13, 10:41 AM CDT | Heat Advisory | LIX | 33 hr |
| Aug 13, 2:35 PM CDT | Special Weather Statement | LIX | 25 min |
| Aug 14, 10:55 AM CDT | Extreme Heat Warning | LIX | 33 hr |
| Aug 14, 11:00 AM CDT | Extreme Heat Watch | LIX | 24 hr |
| Aug 15, 11:09 AM CDT | Extreme Heat Warning | LIX | 33 hr |
| Aug 15, 11:18 AM CDT | Extreme Heat Watch | LIX | 23 hr |
| Aug 16, 10:47 AM CDT | Extreme Heat Warning | LIX | 33 hr |
| Aug 16, 4:02 PM CDT | Special Weather Statement | LIX | 43 min |
| Aug 16, 4:22 PM CDT | Severe Thunderstorm Warning | LIX | 22 min |
| Aug 17, 12:08 PM CDT | Extreme Heat Warning | LIX | 32 hr |
| Aug 17, 4:08 PM CDT | Special Weather Statement | LIX | 37 min |
| Aug 17, 4:38 PM CDT | Special Weather Statement | LIX | 37 min |
| Aug 17, 5:13 PM CDT | Special Weather Statement | LIX | 32 min |
| Aug 17, 5:57 PM CDT | Special Weather Statement | LIX | 48 min |
| Aug 18, 11:14 AM CDT | Heat Advisory | LIX | 33 hr |
| Aug 19, 11:47 AM CDT | Heat Advisory | LIX | 32 hr |
| Aug 20, 11:13 AM CDT | Extreme Heat Warning | LIX | 33 hr |
| Aug 20, 5:23 PM CDT | Severe Thunderstorm Warning | LIX | 44 min |
| Aug 20, 6:32 PM CDT | Special Weather Statement | LIX | 43 min |
| Aug 21, 10:50 AM CDT | Heat Advisory | LIX | 33 hr |
| Aug 21, 1:08 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 21, 2:04 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 21, 2:39 PM CDT | Severe Thunderstorm Warning | LIX | 51 min |
| Aug 22, 11:32 AM CDT | Heat Advisory | LIX | 32 hr |
| Aug 23, 1:12 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 24, 9:12 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 24, 12:38 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 24, 2:57 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 27, 1:20 AM CDT | Special Weather Statement | LIX | 25 min |
| Aug 27, 1:45 AM CDT | Severe Thunderstorm Warning | LIX | 30 min |
| Aug 27, 1:48 AM CDT | Special Weather Statement | LIX | 57 min |
| Aug 27, 2:06 AM CDT | Areal Flood Advisory | LIX | 3 hr |
| Aug 27, 2:32 AM CDT | Flash Flood Warning | LIX | 3 hr |
| Sep 2, 5:20 PM CDT | Special Weather Statement | LIX | 25 min |
| Sep 6, 11:03 AM CDT | Heat Advisory | LIX | 32 hr |
| Sep 10, 10:01 AM CDT | Areal Flood Advisory | LIX | 39 min |
| Sep 10, 10:40 AM CDT | Areal Flood Warning | LIX | 6 min |
| Sep 10, 10:46 AM CDT | Flash Flood Warning | LIX | 119 min |
| Sep 20, 9:44 PM CDT | Special Weather Statement | LIX | 46 min |
| Sep 21, 9:15 PM CDT | Special Weather Statement | LIX | 60 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 | 18 |
| Tornado Warning | 6 |
| Severe Thunderstorm Watch | 3 |
| Tornado Watch | 6 |
| Mesoscale Discussion | 20 |
| Special Weather Statement | 34 |
| Flooding | |
| Areal Flood Warning | 5 |
| Flash Flood Warning | 17 |
| River Flood Warning | 15 |
| Flood Watch | 4 |
| Areal Flood Advisory | 23 |
| Heat | |
| Extreme Heat Warning | 7 |
| Extreme Heat Watch | 3 |
| Heat Advisory | 21 |
| Cold | |
| Extreme Cold Warning | 2 |
| Freeze Warning | 3 |
| Extreme Cold Watch | 2 |
| Freeze Watch | 1 |
| Cold Weather Advisory | 2 |
| Wind and dust | |
| Wind Advisory | 3 |
| Fire | |
| Red Flag Warning | 3 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 19 |
| Tropical | |
| Tropical Storm Warning | 1 |
| Storm Surge Watch | 1 |
| Tropical Storm Watch | 1 |
| Coast and beach | |
| Coastal Flood Warning | 1 |
| Coastal Flood Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive2025
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.