Alert archive / Oklahoma / Woods County
Weather alerts in Woods County, Oklahoma, 2009
221 weather alerts in 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Woods County and its neighbors
Each county as a circle sized by its count in 2009. Tap one for its archive.
- Alerts
- 221
- Warnings
- 81
- Watches
- 43
- Advisories
- 40
- Busiest month
- April72 alerts
- Busiest day
- April 26, 200923 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 4 tornado warnings covering Woods County in 2009 had a tornado report inside them.
Woods County, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 4 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 52 | 18 | 65% | 15 | 80% | 30 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Norman, OK: tornado warnings | 42 | 12 | 71% | 20 | 80% | 20 min |
| NWS Norman, OK: severe thunderstorm warnings | 772 | 319 | 59% | 749 | 84% | 26 min |
| NWS Norman, OK: flash flood warnings | 28 | 10 | 64% | 17 | 88% | 81 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 2, 8:46 PM CST | Dense Fog Advisory | OUN | 12 hr |
| Jan 9, 5:57 PM CST | Wind Advisory | OUN | 9 hr |
| Jan 12, 11:17 AM CST | Wind Advisory | OUN | 12 hr |
| Jan 26, 4:32 AM CST | Winter Weather Advisory | OUN | 43 hr |
| Jan 30, 2:40 AM CST | Fire Weather Watch | OUN | 25 hr |
| Jan 31, 3:32 AM CST | Red Flag Warning | OUN | 14 hr |
| Feb 3, 3:07 PM CST | Fire Weather Watch | OUN | 37 hr |
| Feb 5, 4:02 AM CST | Red Flag Warning | OUN | 14 hr |
| Feb 5, 3:00 PM CST | Fire Weather Watch | OUN | 13 hr |
| Feb 6, 4:29 AM CST | Red Flag Warning | OUN | 15 hr |
| Feb 6, 4:37 AM CST | Wind Advisory | OUN | 13 hr |
| Feb 8, 2:37 PM CST | Wind Advisory | OUN | 27 hr |
| Feb 15, 3:02 PM CST | Fire Weather Watch | OUN | 36 hr |
| Feb 16, 3:39 PM CST | Wind Advisory | OUN | 27 hr |
| Feb 16, 3:42 PM CST | Red Flag Warning | OUN | 27 hr |
| Feb 20, 4:40 AM CST | Wind Advisory | OUN | 31 hr |
| Feb 22, 7:09 PM CST | Fire Weather Watch | OUN | 9 hr |
| Feb 27, 2:48 PM CST | Wind Advisory | OUN | 11 hr |
| Mar 3, 5:10 PM CST | Fire Weather Watch | OUN | 17 hr |
| Mar 4, 10:09 AM CST | Red Flag Warning | OUN | 34 hr |
| Mar 5, 4:40 AM CST | Wind Advisory | OUN | 11 hr |
| Mar 5, 5:05 AM CST | Fire Weather Watch | OUN | 48 hr |
| Mar 7, 1:51 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Mar 7, 5:57 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Mar 7, 8:27 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Mar 9, 6:43 PM CDT | Severe Thunderstorm Warning | OUN | 47 min |
| Mar 12, 10:22 PM CDT | Winter Weather Advisory | OUN | 6 hr |
| Mar 16, 7:34 AM CDT | Dense Fog Advisory | OUN | 2 hr |
| Mar 16, 4:03 PM CDT | Fire Weather Watch | OUN | 12 hr |
| Mar 17, 3:52 AM CDT | Red Flag Warning | OUN | 15 hr |
| Mar 20, 10:01 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Mar 22, 3:03 PM CDT | Wind Advisory | OUN | 31 hr |
| Mar 22, 3:09 PM CDT | Fire Weather Watch | OUN | 14 hr |
| Mar 23, 4:44 AM CDT | Red Flag Warning | OUN | 16 hr |
| Mar 23, 1:03 PM CDT | Tornado Watch | SPC | 6 hr |
| Mar 24, 12:26 PM CDT | Wind Advisory | OUN | 7 hr |
| Mar 25, 4:21 AM CDT | Winter Storm Watch | OUN | 48 hr |
| Mar 26, 4:39 AM CDT | Winter Storm Warning | OUN | 24 hr |
| Mar 27, 4:41 AM CDT | Blizzard Warning | OUN | 32 hr |
| Mar 27, 6:50 AM CDT | Mesoscale Discussion | SPC | 85 min |
| Mar 27, 8:04 AM CDT | Mesoscale Discussion | SPC | 4 hr |
| Mar 27, 12:30 PM CDT | Mesoscale Discussion | SPC | 6 hr |
| Mar 27, 7:12 PM CDT | Mesoscale Discussion | SPC | 4 hr |
| Mar 27, 10:59 PM CDT | Mesoscale Discussion | SPC | 4 hr |
| Mar 28, 2:18 AM CDT | Mesoscale Discussion | SPC | 6 hr |
| Mar 30, 4:33 AM CDT | Wind Advisory | OUN | 17 hr |
| Apr 2, 2:02 AM CDT | Wind Advisory | OUN | 16 hr |
| Apr 2, 3:50 PM CDT | Fire Weather Watch | OUN | 36 hr |
| Apr 4, 3:32 AM CDT | Wind Advisory | OUN | 15 hr |
| Apr 4, 3:40 AM CDT | Red Flag Warning | OUN | 16 hr |
| Apr 4, 12:14 PM CDT | High Wind Warning | OUN | 4 hr |
| Apr 5, 3:50 AM CDT | Freeze Warning | OUN | 29 hr |
| Apr 5, 3:50 AM CDT | Freeze Warning | OUN | 30 hr |
| Apr 5, 3:50 AM CDT | Wind Advisory | OUN | 16 hr |
| Apr 6, 9:57 AM CDT | Hard Freeze Warning | OUN | 23 hr |
| Apr 6, 5:46 PM CDT | Fire Weather Watch | OUN | 10 hr |
| Apr 8, 8:27 PM CDT | Wind Advisory | OUN | 26 hr |
| Apr 9, 6:28 PM CDT | High Wind Warning | OUN | 3 hr |
| Apr 10, 6:29 PM CDT | Frost Advisory | OUN | 14 hr |
| Apr 16, 11:20 AM CDT | Mesoscale Discussion | SPC | 115 min |
| Apr 18, 1:14 PM CDT | Mesoscale Discussion | SPC | 61 min |
| Apr 18, 1:28 PM CDT | Tornado Watch | SPC | 6 hr |
| Apr 18, 2:28 PM CDT | Severe Thunderstorm Warning | OUN | 47 min |
| Apr 18, 3:08 PM CDT | Severe Thunderstorm Warning | OUN | 52 min |
| Apr 18, 3:20 PM CDT | Tornado Warning | OUN | 40 min |
| Apr 18, 3:39 PM CDT | Severe Thunderstorm Warning | OUN | 66 min |
| Apr 18, 3:59 PM CDT | Severe Thunderstorm Warning | OUN | 61 min |
| Apr 18, 4:27 PM CDT | Severe Thunderstorm Warning | OUN | 48 min |
| Apr 18, 4:45 PM CDT | Tornado Warning | OUN | 45 min |
| Apr 18, 4:59 PM CDT | Severe Thunderstorm Warning | OUN | 31 min |
| Apr 18, 5:10 PM CDT | Severe Thunderstorm Warning | OUN | 65 min |
| Apr 18, 5:18 PM CDT | Severe Thunderstorm Warning | OUN | 57 min |
| Apr 25, 3:00 AM CDT | Wind Advisory | OUN | 11 hr |
| Apr 25, 1:23 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 25, 3:36 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 25, 3:49 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Apr 25, 5:10 PM CDT | Severe Thunderstorm Warning | OUN | 65 min |
| Apr 25, 5:49 PM CDT | Severe Thunderstorm Warning | OUN | 56 min |
| Apr 25, 5:59 PM CDT | Severe Thunderstorm Warning | OUN | 61 min |
| Apr 25, 6:20 PM CDT | Severe Thunderstorm Warning | OUN | 40 min |
| Apr 25, 6:38 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 25, 9:16 PM CDT | Severe Thunderstorm Warning | OUN | 59 min |
| Apr 25, 9:58 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Apr 25, 10:13 PM CDT | Severe Thunderstorm Warning | OUN | 62 min |
| Apr 25, 10:39 PM CDT | Tornado Watch | SPC | 4 hr |
| Apr 25, 11:36 PM CDT | Severe Thunderstorm Warning | OUN | 54 min |
| Apr 26, 12:57 AM CDT | Areal Flood Warning | OUN | 3 hr |
| Apr 26, 1:28 AM CDT | Mesoscale Discussion | SPC | 92 min |
| Apr 26, 3:04 AM CDT | Areal Flood Warning | OUN | 4 hr |
| Apr 26, 6:38 AM CDT | Areal Flood Warning | OUN | 3 hr |
| Apr 26, 10:02 AM CDT | Flood Watch | OUN | 30 hr |
| Apr 26, 10:19 AM CDT | Mesoscale Discussion | SPC | 56 min |
| Apr 26, 10:54 AM CDT | Mesoscale Discussion | SPC | 66 min |
| Apr 26, 11:07 AM CDT | Tornado Watch | SPC | 7 hr |
| Apr 26, 12:03 PM CDT | Wind Advisory | OUN | 13 hr |
| Apr 26, 1:28 PM CDT | Severe Thunderstorm Warning | OUN | 62 min |
| Apr 26, 2:46 PM CDT | Severe Thunderstorm Warning | OUN | 59 min |
| Apr 26, 3:34 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Apr 26, 3:46 PM CDT | Severe Thunderstorm Warning | OUN | 59 min |
| Apr 26, 4:42 PM CDT | Severe Thunderstorm Warning | OUN | 63 min |
| Apr 26, 5:42 PM CDT | Tornado Warning | OUN | 54 min |
| Apr 26, 5:44 PM CDT | Mesoscale Discussion | SPC | 61 min |
| Apr 26, 6:16 PM CDT | Tornado Watch | SPC | 8 hr |
| Apr 26, 6:34 PM CDT | Severe Thunderstorm Warning | OUN | 56 min |
| Apr 26, 7:11 PM CDT | Severe Thunderstorm Warning | OUN | 64 min |
| Apr 26, 7:13 PM CDT | Areal Flood Advisory | OUN | 4 hr |
| Apr 26, 7:19 PM CDT | Severe Thunderstorm Warning | OUN | 41 min |
| Apr 26, 7:44 PM CDT | Areal Flood Advisory | OUN | 3 hr |
| Apr 26, 7:59 PM CDT | Severe Thunderstorm Warning | OUN | 61 min |
| Apr 26, 8:42 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 27, 3:52 AM CDT | River Flood Warning | OUN | 29 hr |
| Apr 29, 1:37 AM CDT | Mesoscale Discussion | SPC | 83 min |
| Apr 29, 2:22 AM CDT | Areal Flood Advisory | OUN | 3 hr |
| Apr 29, 10:34 AM CDT | River Flood Warning | OUN | 9 hr |
| Apr 29, 10:34 AM CDT | River Flood Warning | OUN | 28 hr |
| Apr 30, 12:52 PM CDT | River Flood Warning | OUN | 25 hr |
| Apr 30, 3:14 PM CDT | Flash Flood Watch | OUN | 61 hr |
| Apr 30, 5:13 PM CDT | Mesoscale Discussion | SPC | 92 min |
| May 8, 12:02 AM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 8, 4:31 AM CDT | Mesoscale Discussion | SPC | 59 min |
| May 13, 3:21 PM CDT | Mesoscale Discussion | SPC | 84 min |
| May 15, 2:44 PM CDT | Mesoscale Discussion | SPC | 31 min |
| May 15, 3:02 PM CDT | Tornado Watch | SPC | 7 hr |
| May 15, 4:09 PM CDT | Severe Thunderstorm Warning | OUN | 66 min |
| May 15, 5:11 PM CDT | Severe Thunderstorm Warning | OUN | 64 min |
| May 15, 5:52 PM CDT | Mesoscale Discussion | SPC | 53 min |
| May 15, 6:09 PM CDT | Severe Thunderstorm Warning | OUN | 66 min |
| Jun 6, 2:52 AM CDT | High Wind Warning | OUN | 3 hr |
| Jun 7, 4:13 PM CDT | Mesoscale Discussion | SPC | 62 min |
| Jun 7, 5:00 PM CDT | Severe Thunderstorm Warning | OUN | 45 min |
| Jun 7, 5:07 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 7, 5:48 PM CDT | Severe Thunderstorm Warning | OUN | 27 min |
| Jun 7, 6:04 PM CDT | Severe Thunderstorm Warning | OUN | 41 min |
| Jun 7, 7:08 PM CDT | Mesoscale Discussion | SPC | 67 min |
| Jun 9, 2:34 PM CDT | Tornado Watch | SPC | 7 hr |
| Jun 9, 5:31 PM CDT | Severe Thunderstorm Warning | OUN | 59 min |
| Jun 10, 11:09 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 10, 1:35 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Jun 10, 8:00 PM CDT | Mesoscale Discussion | SPC | 60 min |
| Jun 12, 1:01 AM CDT | Mesoscale Discussion | SPC | 89 min |
| Jun 12, 2:04 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 12, 5:28 AM CDT | Severe Thunderstorm Warning | OUN | 62 min |
| Jun 12, 6:11 AM CDT | Severe Thunderstorm Warning | OUN | 79 min |
| Jun 12, 6:23 AM CDT | Mesoscale Discussion | SPC | 67 min |
| Jun 12, 6:54 AM CDT | Severe Thunderstorm Warning | OUN | 51 min |
| Jun 13, 7:43 AM CDT | Mesoscale Discussion | SPC | 62 min |
| Jun 13, 7:46 PM CDT | Mesoscale Discussion | SPC | 59 min |
| Jun 13, 8:19 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 14, 4:11 PM CDT | Tornado Watch | SPC | 7 hr |
| Jun 15, 12:33 AM CDT | Wind Advisory | OUN | 3 hr |
| Jun 17, 3:55 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 17, 10:17 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Jun 27, 2:23 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 27, 4:39 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 8, 4:11 AM CDT | Heat Advisory | OUN | 9 days |
| Jul 8, 7:51 AM CDT | Severe Thunderstorm Warning | OUN | 54 min |
| Jul 9, 5:57 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 10, 12:03 PM CDT | Red Flag Warning | OUN | 7 hr |
| Jul 10, 7:42 PM CDT | Fire Weather Watch | OUN | 16 hr |
| Jul 12, 1:57 PM CDT | Fire Weather Watch | OUN | 45 hr |
| Jul 13, 5:55 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 14, 3:17 AM CDT | Red Flag Warning | OUN | 17 hr |
| Jul 15, 9:45 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Jul 16, 2:37 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Jul 20, 10:03 PM CDT | Mesoscale Discussion | SPC | 57 min |
| Jul 20, 10:11 PM CDT | Severe Thunderstorm Warning | OUN | 94 min |
| Jul 20, 10:27 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 28, 3:14 PM CDT | Mesoscale Discussion | SPC | 61 min |
| Jul 28, 3:32 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 29, 8:42 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 29, 8:59 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 31, 10:09 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 2, 10:41 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Aug 2, 11:26 PM CDT | Severe Thunderstorm Warning | OUN | 64 min |
| Aug 3, 12:26 AM CDT | Severe Thunderstorm Warning | OUN | 64 min |
| Aug 10, 1:59 PM CDT | Severe Thunderstorm Warning | OUN | 61 min |
| Aug 10, 2:58 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Aug 10, 6:10 PM CDT | Severe Thunderstorm Warning | OUN | 50 min |
| Aug 10, 6:44 PM CDT | Severe Thunderstorm Warning | OUN | 61 min |
| Aug 15, 7:41 PM CDT | Severe Thunderstorm Warning | OUN | 48 min |
| Aug 17, 11:54 AM CDT | Flash Flood Watch | OUN | 70 hr |
| Aug 17, 2:59 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Aug 17, 3:18 PM CDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Aug 19, 12:10 AM CDT | Severe Thunderstorm Warning | OUN | 65 min |
| Aug 19, 2:40 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Aug 19, 4:02 PM CDT | Tornado Watch | SPC | 7 hr |
| Aug 19, 8:17 PM CDT | Severe Thunderstorm Warning | OUN | 58 min |
| Aug 19, 9:05 PM CDT | Severe Thunderstorm Warning | OUN | 55 min |
| Aug 19, 9:18 PM CDT | Mesoscale Discussion | SPC | 27 min |
| Aug 20, 1:10 AM CDT | Mesoscale Discussion | SPC | 95 min |
| Aug 25, 5:37 PM CDT | Severe Thunderstorm Warning | OUN | 53 min |
| Aug 26, 2:51 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Aug 26, 5:39 PM CDT | Severe Thunderstorm Warning | OUN | 66 min |
| Aug 26, 6:07 PM CDT | Severe Thunderstorm Warning | OUN | 38 min |
| Aug 26, 6:40 PM CDT | Severe Thunderstorm Warning | OUN | 50 min |
| Sep 8, 6:24 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 12, 9:51 AM CDT | Areal Flood Advisory | OUN | 8 hr |
| Sep 25, 1:32 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Sep 30, 3:58 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 30, 7:31 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Oct 7, 11:34 AM CDT | Flash Flood Watch | OUN | 43 hr |
| Oct 8, 2:51 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Oct 9, 2:52 PM CDT | Freeze Watch | OUN | 24 hr |
| Oct 10, 2:58 PM CDT | Freeze Warning | OUN | 18 hr |
| Oct 13, 7:49 PM CDT | Dense Fog Advisory | OUN | 8 hr |
| Oct 23, 4:37 AM CDT | Frost Advisory | OUN | 28 hr |
| Oct 26, 3:30 PM CDT | Frost Advisory | OUN | 15 hr |
| Oct 30, 7:55 PM CDT | Frost Advisory | OUN | 13 hr |
| Nov 4, 9:53 PM CST | Frost Advisory | OUN | 10 hr |
| Nov 16, 4:13 AM CST | Freeze Watch | OUN | 8 hr |
| Nov 16, 12:28 PM CST | Freeze Watch | OUN | 25 hr |
| Nov 16, 12:28 PM CST | Freeze Warning | OUN | 20 hr |
| Nov 17, 1:00 PM CST | Freeze Warning | OUN | 19 hr |
| Nov 23, 12:57 AM CST | Dense Fog Advisory | OUN | 10 hr |
| Dec 7, 11:50 AM CST | Winter Weather Advisory | OUN | 28 hr |
| Dec 8, 4:04 AM CST | Wind Chill Advisory | OUN | 31 hr |
| Dec 8, 5:00 PM CST | Wind Advisory | OUN | 8 hr |
| Dec 23, 4:21 AM CST | Winter Weather Advisory | OUN | 19 hr |
| Dec 23, 2:47 PM CST | Winter Storm Warning | OUN | 33 hr |
| Dec 23, 10:52 PM CST | Winter Weather Advisory | OUN | 19 hr |
| Dec 28, 9:26 PM CST | Winter Weather Advisory | OUN | 33 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 | 49 |
| Tornado Warning | 3 |
| Severe Thunderstorm Watch | 12 |
| Tornado Watch | 10 |
| Mesoscale Discussion | 57 |
| Flooding | |
| Areal Flood Warning | 3 |
| River Flood Warning | 4 |
| Flash Flood Watch | 3 |
| Flood Watch | 1 |
| Areal Flood Advisory | 4 |
| Winter | |
| Blizzard Warning | 1 |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 6 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 5 |
| Hard Freeze Warning | 1 |
| Freeze Watch | 3 |
| Frost Advisory | 5 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 3 |
| Wind Advisory | 19 |
| Fire | |
| Red Flag Warning | 10 |
| Fire Weather Watch | 13 |
| 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 archive20082010
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.