Alert archive / Missouri / Gasconade County
Weather alerts in Gasconade County, Missouri, 2009
125 weather alerts in 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Gasconade County and its neighbors
Each county as a circle sized by its count in 2009. Tap one for its archive.
- Alerts
- 125
- Warnings
- 48
- Watches
- 27
- Advisories
- 18
- Busiest month
- June29 alerts
- Busiest day
- May 8, 20098 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Gasconade County, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 13 | 4 | 69% | 5 | 100% | 12 min |
| Flash flood warnings | 6 | 2 | 67% | 0 |
Each office's whole area, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS St. Louis, MO: tornado warnings | 62 | 12 | 81% | 30 | 80% | 19 min |
| NWS St. Louis, MO: severe thunderstorm warnings | 214 | 84 | 61% | 316 | 59% | 20 min |
| NWS St. Louis, MO: flash flood warnings | 97 | 48 | 51% | 138 | 78% | 120 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 12, 3:12 PM CST | Wind Advisory | LSX | 9 hr |
| Jan 14, 3:42 AM CST | Wind Chill Advisory | LSX | 39 hr |
| Jan 25, 4:08 AM CST | Winter Storm Watch | LSX | 24 hr |
| Jan 26, 4:05 AM CST | Winter Storm Warning | LSX | 50 hr |
| Jan 27, 6:25 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Feb 9, 4:01 PM CST | Flash Flood Watch | LSX | 44 hr |
| Feb 10, 11:45 PM CST | Tornado Watch | SPC | 6 hr |
| Feb 11, 2:30 AM CST | Mesoscale Discussion | SPC | 90 min |
| Feb 26, 6:57 AM CST | Mesoscale Discussion | SPC | 93 min |
| Feb 26, 9:26 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 26, 5:19 PM CST | Severe Thunderstorm Watch | SPC | 7 hr |
| Feb 26, 7:42 PM CST | Mesoscale Discussion | SPC | 93 min |
| Feb 27, 3:27 PM CST | Winter Weather Advisory | LSX | 27 hr |
| Mar 5, 10:17 AM CST | Wind Advisory | LSX | 8 hr |
| Mar 8, 6:32 AM CDT | Tornado Watch | SPC | 7 hr |
| Mar 8, 9:21 AM CDT | Severe Thunderstorm Warning | LSX | 39 min |
| Mar 8, 9:26 AM CDT | Mesoscale Discussion | SPC | 64 min |
| Mar 8, 9:49 AM CDT | Severe Thunderstorm Warning | LSX | 26 min |
| Mar 8, 12:16 PM CDT | Wind Advisory | LSX | 7 hr |
| Mar 10, 3:15 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 11, 9:22 PM CDT | River Flood Warning | LSX | 36 hr |
| Mar 18, 2:22 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Mar 23, 3:15 AM CDT | Wind Advisory | LSX | 17 hr |
| Mar 24, 9:38 AM CDT | Mesoscale Discussion | SPC | 97 min |
| Mar 24, 12:02 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Mar 26, 3:34 PM CDT | Winter Storm Watch | LSX | 36 hr |
| Mar 28, 3:31 AM CDT | Winter Weather Advisory | LSX | 24 hr |
| Mar 29, 10:46 PM CDT | River Flood Warning | LSX | 35 hr |
| Apr 3, 2:14 PM CDT | Frost Advisory | LSX | 19 hr |
| Apr 3, 2:14 PM CDT | Freeze Watch | LSX | 4 days |
| Apr 5, 4:35 AM CDT | Freeze Warning | LSX | 28 hr |
| Apr 5, 3:25 PM CDT | Freeze Warning | LSX | 41 hr |
| Apr 7, 1:05 PM CDT | Freeze Warning | LSX | 19 hr |
| Apr 10, 4:09 AM CDT | Frost Advisory | LSX | 28 hr |
| Apr 14, 4:11 AM CDT | Frost Advisory | LSX | 28 hr |
| Apr 28, 10:30 AM CDT | River Flood Warning | LSX | 14 days |
| Apr 28, 10:30 AM CDT | River Flood Warning | LSX | 8 days |
| Apr 29, 3:53 AM CDT | Flash Flood Watch | LSX | 36 hr |
| May 7, 9:38 PM CDT | Mesoscale Discussion | SPC | 97 min |
| May 7, 10:17 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 7, 11:38 PM CDT | Severe Thunderstorm Warning | LSX | 57 min |
| May 7, 11:46 PM CDT | Mesoscale Discussion | SPC | 89 min |
| May 8, 12:15 AM CDT | Severe Thunderstorm Warning | LSX | 30 min |
| May 8, 7:51 AM CDT | Severe Thunderstorm Warning | LSX | 39 min |
| May 8, 10:01 AM CDT | Flash Flood Warning | LSX | 6 hr |
| May 8, 3:51 PM CDT | Areal Flood Warning | LSX | 12 hr |
| May 8, 9:39 PM CDT | River Flood Warning | LSX | 24 hr |
| May 13, 1:52 PM CDT | Mesoscale Discussion | SPC | 23 min |
| May 13, 3:04 PM CDT | Flash Flood Watch | LSX | 12 hr |
| May 13, 4:51 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 13, 9:56 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 13, 10:11 PM CDT | Severe Thunderstorm Warning | LSX | 34 min |
| May 13, 10:35 PM CDT | Severe Thunderstorm Warning | LSX | 40 min |
| May 13, 11:27 PM CDT | Mesoscale Discussion | SPC | 93 min |
| May 14, 3:51 PM CDT | Flash Flood Watch | LSX | 32 hr |
| May 15, 6:30 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 16, 12:19 PM CDT | River Flood Warning | LSX | 8 days |
| May 16, 12:19 PM CDT | River Flood Warning | LSX | 7 days |
| May 25, 12:32 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Jun 2, 11:58 AM CDT | Mesoscale Discussion | SPC | 92 min |
| Jun 2, 12:27 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 7, 12:18 PM CDT | Mesoscale Discussion | SPC | 57 min |
| Jun 9, 4:00 PM CDT | Flash Flood Watch | LSX | 12 hr |
| Jun 10, 12:30 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Jun 10, 4:51 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Jun 10, 5:15 PM CDT | Tornado Watch | SPC | 7 hr |
| Jun 10, 7:10 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Jun 10, 7:43 PM CDT | Severe Thunderstorm Warning | LSX | 47 min |
| Jun 10, 8:06 PM CDT | Severe Thunderstorm Warning | LSX | 24 min |
| Jun 10, 8:07 PM CDT | Flash Flood Warning | LSX | 6 hr |
| Jun 10, 8:44 PM CDT | Severe Thunderstorm Warning | LSX | 22 min |
| Jun 10, 8:58 PM CDT | Mesoscale Discussion | SPC | 62 min |
| Jun 11, 10:02 AM CDT | River Flood Warning | LSX | 4 days |
| Jun 11, 10:11 AM CDT | River Flood Warning | LSX | 71 hr |
| Jun 15, 6:24 AM CDT | Mesoscale Discussion | SPC | 96 min |
| Jun 15, 3:42 PM CDT | Flash Flood Watch | LSX | 20 hr |
| Jun 16, 12:41 AM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 16, 3:17 AM CDT | River Flood Warning | LSX | 6 days |
| Jun 16, 3:53 AM CDT | Mesoscale Discussion | SPC | 67 min |
| Jun 16, 10:26 AM CDT | River Flood Warning | LSX | 10 days |
| Jun 17, 3:09 PM CDT | Tornado Watch | SPC | 7 hr |
| Jun 17, 6:42 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 17, 8:14 PM CDT | Severe Thunderstorm Warning | LSX | 46 min |
| Jun 17, 8:59 PM CDT | Severe Thunderstorm Warning | LSX | 46 min |
| Jun 17, 9:44 PM CDT | Severe Thunderstorm Warning | LSX | 46 min |
| Jun 19, 7:48 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jun 21, 2:24 PM CDT | Heat Advisory | LSX | 6 days |
| Jun 27, 5:54 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 4, 6:57 AM CDT | Flash Flood Warning | LSX | 6 hr |
| Jul 4, 8:22 PM CDT | River Flood Warning | LSX | 23 hr |
| Jul 11, 6:20 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Jul 12, 10:28 AM CDT | Mesoscale Discussion | SPC | 92 min |
| Jul 16, 4:59 PM CDT | Mesoscale Discussion | SPC | 61 min |
| Jul 25, 2:17 AM CDT | Mesoscale Discussion | SPC | 88 min |
| Aug 17, 1:44 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 19, 3:20 PM CDT | Flash Flood Watch | LSX | 13 hr |
| Aug 19, 11:26 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Aug 29, 3:47 AM CDT | Dense Fog Advisory | LSX | 5 hr |
| Sep 6, 9:04 PM CDT | Dense Fog Advisory | LSX | 12 hr |
| Sep 21, 4:07 AM CDT | Dense Fog Advisory | LSX | 5 hr |
| Oct 1, 5:12 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Oct 7, 4:18 AM CDT | Flash Flood Watch | LSX | 47 hr |
| Oct 8, 1:09 PM CDT | Flash Flood Warning | LSX | 5 hr |
| Oct 8, 5:26 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 8, 6:04 PM CDT | Areal Flood Warning | LSX | 18 hr |
| Oct 9, 8:50 AM CDT | River Flood Warning | LSX | 49 hr |
| Oct 9, 8:50 AM CDT | River Flood Warning | LSX | 37 hr |
| Oct 9, 12:01 PM CDT | Areal Flood Warning | LSX | 7 hr |
| Oct 9, 7:00 PM CDT | Areal Flood Warning | LSX | 18 hr |
| Oct 17, 4:22 AM CDT | Frost Advisory | LSX | 29 hr |
| Oct 17, 3:31 PM CDT | Freeze Warning | LSX | 17 hr |
| Oct 28, 3:58 PM CDT | Flash Flood Watch | LSX | 47 hr |
| Oct 29, 3:58 PM CDT | Flash Flood Warning | LSX | 6 hr |
| Oct 29, 9:39 PM CDT | Flash Flood Warning | LSX | 9 hr |
| Oct 29, 11:30 PM CDT | River Flood Warning | LSX | 6 days |
| Oct 29, 11:30 PM CDT | River Flood Warning | LSX | 5 days |
| Oct 30, 6:25 AM CDT | Areal Flood Warning | LSX | 12 hr |
| Nov 15, 2:02 PM CST | Flood Watch | LSX | 37 hr |
| Nov 15, 9:04 PM CST | Areal Flood Warning | LSX | 12 hr |
| Nov 16, 7:27 PM CST | Areal Flood Advisory | LSX | 7 hr |
| Nov 18, 8:25 PM CST | River Flood Warning | LSX | 4 days |
| Nov 19, 10:13 AM CST | River Flood Warning | LSX | 33 hr |
| Dec 8, 2:48 PM CST | Wind Advisory | LSX | 25 hr |
| Dec 22, 3:39 PM CST | Flood Watch | LSX | 61 hr |
| Dec 23, 11:12 AM CST | Areal Flood Advisory | LSX | 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 | 13 |
| Severe Thunderstorm Watch | 9 |
| Tornado Watch | 4 |
| Mesoscale Discussion | 32 |
| Flooding | |
| Areal Flood Warning | 6 |
| Flash Flood Warning | 6 |
| River Flood Warning | 18 |
| Flash Flood Watch | 9 |
| Flood Watch | 2 |
| Areal Flood Advisory | 2 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 2 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 4 |
| Freeze Watch | 1 |
| Frost Advisory | 4 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 5 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
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.