Alert archive / Missouri / Worth County
Weather alerts in Worth County, Missouri, 2009
124 weather alerts in 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Worth County and its neighbors
Each county as a circle sized by its count in 2009. Tap one for its archive.
- Alerts
- 124
- Warnings
- 13
- Watches
- 29
- Advisories
- 28
- Busiest month
- June35 alerts
- Busiest day
- April 26, 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.
Worth County, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 2 | 0 | 100% | 0 | ||
| Flash flood warnings | 1 | 1 | 0% | 0 |
Each office's whole area, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Kansas City, MO: tornado warnings | 29 | 10 | 66% | 24 | 83% | 14 min |
| NWS Kansas City, MO: severe thunderstorm warnings | 251 | 122 | 51% | 309 | 70% | 17 min |
| NWS Kansas City, MO: flash flood warnings | 53 | 32 | 40% | 104 | 83% | 156 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, 3:48 AM CST | Wind Advisory | EAX | 18 hr |
| Jan 14, 4:28 AM CST | Wind Chill Advisory | EAX | 32 hr |
| Feb 3, 2:23 AM CST | Wind Chill Advisory | EAX | 8 hr |
| Feb 8, 3:21 PM CST | Wind Advisory | EAX | 28 hr |
| Feb 9, 8:43 AM CST | Mesoscale Discussion | SPC | 32 min |
| Feb 9, 10:28 AM CST | Mesoscale Discussion | SPC | 62 min |
| Feb 11, 2:56 PM CST | Winter Storm Watch | EAX | 23 hr |
| Feb 12, 2:16 PM CST | Winter Weather Advisory | EAX | 31 hr |
| Feb 26, 9:26 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 27, 3:04 PM CST | Winter Weather Advisory | EAX | 25 hr |
| Feb 27, 6:22 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Mar 6, 9:17 PM CST | Mesoscale Discussion | SPC | 118 min |
| Mar 22, 3:47 PM CDT | Wind Advisory | EAX | 31 hr |
| Mar 23, 4:01 PM CDT | Flash Flood Watch | EAX | 21 hr |
| Mar 23, 6:04 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Mar 24, 12:08 PM CDT | Areal Flood Warning | EAX | 18 hr |
| Mar 27, 5:02 AM CDT | Winter Weather Advisory | EAX | 44 hr |
| Apr 4, 6:20 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Apr 5, 3:51 AM CDT | Winter Weather Advisory | EAX | 8 hr |
| Apr 5, 12:22 PM CDT | Wind Advisory | EAX | 7 hr |
| Apr 24, 7:42 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Apr 25, 4:04 PM CDT | Flood Watch | EAX | 43 hr |
| Apr 25, 4:30 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 25, 10:09 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 26, 12:06 AM CDT | Special Weather Statement | EAX | 24 min |
| Apr 26, 2:10 AM CDT | Mesoscale Discussion | SPC | 95 min |
| Apr 26, 12:48 PM CDT | Tornado Watch | SPC | 4 hr |
| Apr 26, 5:02 PM CDT | Tornado Watch | SPC | 6 hr |
| Apr 26, 5:29 PM CDT | Special Weather Statement | EAX | 31 min |
| Apr 26, 5:43 PM CDT | Severe Thunderstorm Warning | EAX | 22 min |
| Apr 26, 6:14 PM CDT | Mesoscale Discussion | SPC | 61 min |
| Apr 26, 8:21 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Apr 27, 12:34 AM CDT | Areal Flood Advisory | EAX | 6 hr |
| Apr 27, 9:20 AM CDT | Areal Flood Warning | EAX | 24 hr |
| May 7, 1:12 PM CDT | Mesoscale Discussion | SPC | 93 min |
| May 7, 1:44 PM CDT | Tornado Watch | SPC | 6 hr |
| May 7, 3:55 PM CDT | Mesoscale Discussion | SPC | 65 min |
| May 7, 5:42 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 7, 6:35 PM CDT | Special Weather Statement | EAX | 25 min |
| May 7, 7:37 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 12, 1:22 PM CDT | Mesoscale Discussion | SPC | 53 min |
| May 14, 3:22 PM CDT | Flash Flood Watch | EAX | 31 hr |
| May 15, 2:03 AM CDT | Mesoscale Discussion | SPC | 87 min |
| May 15, 6:12 AM CDT | Areal Flood Advisory | EAX | 6 hr |
| May 15, 7:14 AM CDT | Mesoscale Discussion | SPC | 91 min |
| May 15, 7:42 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 15, 9:20 AM CDT | Flash Flood Warning | EAX | 8 hr |
| May 15, 11:48 AM CDT | Mesoscale Discussion | SPC | 57 min |
| May 15, 5:15 PM CDT | Areal Flood Warning | EAX | 46 hr |
| May 26, 11:58 AM CDT | Areal Flood Advisory | EAX | 8 hr |
| Jun 1, 2:55 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 1, 3:29 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 1, 5:25 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 1, 6:52 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Jun 1, 9:27 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Jun 6, 2:22 AM CDT | Mesoscale Discussion | SPC | 23 min |
| Jun 6, 3:12 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 6, 11:16 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 7, 12:44 AM CDT | Mesoscale Discussion | SPC | 61 min |
| Jun 7, 4:45 AM CDT | Mesoscale Discussion | SPC | 30 min |
| Jun 7, 3:45 PM CDT | Tornado Watch | SPC | 7 hr |
| Jun 7, 10:22 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Jun 7, 10:53 PM CDT | Tornado Watch | SPC | 5 hr |
| Jun 8, 2:30 AM CDT | Mesoscale Discussion | SPC | 60 min |
| Jun 8, 9:44 AM CDT | Areal Flood Warning | EAX | 11 hr |
| Jun 9, 3:56 AM CDT | Flash Flood Watch | EAX | 24 hr |
| Jun 12, 5:32 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Jun 15, 3:04 PM CDT | Flash Flood Watch | EAX | 18 hr |
| Jun 15, 7:33 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jun 15, 8:14 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 15, 11:13 PM CDT | Areal Flood Advisory | EAX | 6 hr |
| Jun 15, 11:18 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jun 16, 2:30 AM CDT | Mesoscale Discussion | SPC | 60 min |
| Jun 17, 12:52 PM CDT | Tornado Watch | SPC | 8 hr |
| Jun 17, 2:47 PM CDT | Mesoscale Discussion | SPC | 28 min |
| Jun 17, 5:43 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Jun 19, 2:13 AM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 19, 12:37 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Jun 19, 1:36 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 21, 3:43 PM CDT | Heat Advisory | EAX | 47 hr |
| Jun 22, 1:37 PM CDT | Excessive Heat Warning | EAX | 5 days |
| Jun 23, 5:52 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 23, 7:07 PM CDT | Special Weather Statement | EAX | 53 min |
| Jun 24, 3:36 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Jun 25, 3:32 AM CDT | Mesoscale Discussion | SPC | 88 min |
| Jul 3, 8:56 PM CDT | Areal Flood Advisory | EAX | 5 hr |
| Jul 8, 2:16 AM CDT | Mesoscale Discussion | SPC | 59 min |
| Jul 9, 9:32 AM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 9, 11:54 AM CDT | Mesoscale Discussion | SPC | 96 min |
| Jul 10, 2:28 AM CDT | Mesoscale Discussion | SPC | 62 min |
| Aug 4, 2:10 AM CDT | Areal Flood Advisory | EAX | 4 hr |
| Aug 4, 2:46 AM CDT | Special Weather Statement | EAX | 29 min |
| Aug 4, 3:03 AM CDT | Severe Thunderstorm Warning | EAX | 27 min |
| Aug 4, 4:06 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 7, 4:01 PM CDT | Heat Advisory | EAX | 28 hr |
| Aug 9, 3:44 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 9, 5:49 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Aug 16, 3:14 PM CDT | Flash Flood Watch | EAX | 23 hr |
| Aug 19, 5:19 PM CDT | Mesoscale Discussion | SPC | 26 min |
| Aug 19, 5:32 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 19, 6:54 PM CDT | Special Weather Statement | EAX | 36 min |
| Sep 6, 9:14 PM CDT | Dense Fog Advisory | EAX | 13 hr |
| Sep 30, 11:44 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Oct 2, 4:02 AM CDT | Wind Advisory | EAX | 11 hr |
| Oct 9, 3:58 PM CDT | Freeze Warning | EAX | 17 hr |
| Oct 10, 4:01 AM CDT | Freeze Warning | EAX | 24 hr |
| Oct 10, 5:56 AM CDT | Mesoscale Discussion | SPC | 5 hr |
| Nov 15, 2:43 PM CST | Winter Weather Advisory | EAX | 32 hr |
| Nov 20, 3:43 AM CST | Dense Fog Advisory | EAX | 6 hr |
| Nov 20, 9:26 PM CST | Dense Fog Advisory | EAX | 12 hr |
| Dec 6, 4:30 AM CST | Winter Storm Watch | EAX | 35 hr |
| Dec 7, 3:29 PM CST | Winter Storm Warning | EAX | 39 hr |
| Dec 8, 11:22 AM CST | Mesoscale Discussion | SPC | 5 hr |
| Dec 8, 2:17 PM CST | Blizzard Warning | EAX | 19 hr |
| Dec 8, 9:38 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Dec 9, 9:03 AM CST | Winter Weather Advisory | EAX | 9 hr |
| Dec 9, 3:39 PM CST | Wind Chill Advisory | EAX | 17 hr |
| Dec 13, 4:01 AM CST | Dense Fog Advisory | EAX | 5 hr |
| Dec 14, 5:06 AM CST | Winter Weather Advisory | EAX | 5 hr |
| Dec 23, 3:37 AM CST | Winter Storm Watch | EAX | 25 hr |
| Dec 23, 3:58 PM CST | Winter Storm Warning | EAX | 42 hr |
| Dec 24, 1:32 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Dec 24, 11:54 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Dec 25, 9:42 AM CST | Winter Weather Advisory | EAX | 18 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 | 2 |
| Severe Thunderstorm Watch | 14 |
| Tornado Watch | 6 |
| Mesoscale Discussion | 48 |
| Special Weather Statement | 6 |
| Flooding | |
| Areal Flood Warning | 4 |
| Flash Flood Warning | 1 |
| Flash Flood Watch | 5 |
| Flood Watch | 1 |
| Areal Flood Advisory | 6 |
| Winter | |
| Blizzard Warning | 1 |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 3 |
| Winter Weather Advisory | 8 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 2 |
| Cold | |
| Freeze Warning | 2 |
| Wind Chill Advisory | 3 |
| Wind and dust | |
| Wind Advisory | 5 |
| 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.