Alert archive / Missouri / Grundy County
Weather alerts in Grundy County, Missouri, 2012
73 weather alerts in 2012, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Grundy County and its neighbors
Each county as a circle sized by its count in 2012. Tap one for its archive.
- Alerts
- 73
- Warnings
- 15
- Watches
- 9
- Advisories
- 17
- Busiest month
- March12 alerts
- Busiest day
- May 4, 20127 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Grundy County, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 5 | 2 | 60% | 3 | 33% | 7 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Kansas City, MO: tornado warnings | 3 | 2 | 33% | 4 | 75% | 4 min |
| NWS Kansas City, MO: severe thunderstorm warnings | 111 | 50 | 55% | 137 | 66% | 15 min |
| NWS Kansas City, MO: flash flood warnings | 8 | 6 | 25% | 8 | 88% | 41 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 11, 11:31 AM CST | Winter Weather Advisory | EAX | 29 hr |
| Jan 26, 3:20 AM CST | Dense Fog Advisory | EAX | 7 hr |
| Jan 29, 2:20 PM CST | Fire Weather Watch | EAX | 13 hr |
| Jan 30, 3:27 AM CST | Red Flag Warning | EAX | 15 hr |
| Feb 5, 9:52 PM CST | Freezing Fog Advisory | EAX | 12 hr |
| Feb 12, 4:08 AM CST | Winter Weather Advisory | EAX | 38 hr |
| Feb 28, 3:12 PM CST | Wind Advisory | EAX | 27 hr |
| Mar 4, 3:41 AM CST | Wind Advisory | EAX | 14 hr |
| Mar 5, 2:46 PM CST | Wind Advisory | EAX | 28 hr |
| Mar 6, 4:43 AM CST | Red Flag Warning | EAX | 14 hr |
| Mar 7, 12:19 AM CST | Wind Advisory | EAX | 15 hr |
| Mar 18, 3:28 AM CDT | Flood Watch | EAX | 3 days |
| Mar 19, 3:36 PM CDT | Special Weather Statement | EAX | 24 min |
| Mar 19, 3:40 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Mar 23, 5:37 PM CDT | Special Weather Statement | EAX | 23 min |
| Mar 28, 11:21 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Mar 29, 11:53 AM CDT | Mesoscale Discussion | SPC | 97 min |
| Mar 29, 8:30 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Mar 29, 11:50 PM CDT | Mesoscale Discussion | SPC | 55 min |
| Apr 10, 3:06 AM CDT | Freeze Warning | EAX | 29 hr |
| Apr 14, 5:00 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 14, 6:57 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Apr 15, 4:17 AM CDT | Wind Advisory | EAX | 16 hr |
| Apr 15, 5:33 AM CDT | Special Weather Statement | EAX | 42 min |
| May 3, 6:42 PM CDT | Mesoscale Discussion | SPC | 63 min |
| May 3, 7:09 PM CDT | Tornado Watch | SPC | 6 hr |
| May 3, 11:18 PM CDT | Mesoscale Discussion | SPC | 27 min |
| May 4, 12:18 AM CDT | Severe Thunderstorm Warning | EAX | 42 min |
| May 4, 12:42 AM CDT | Areal Flood Advisory | EAX | 6 hr |
| May 4, 12:53 AM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| May 4, 1:31 AM CDT | Special Weather Statement | EAX | 44 min |
| May 4, 2:16 AM CDT | Mesoscale Discussion | SPC | 119 min |
| May 6, 1:42 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 6, 3:56 PM CDT | Mesoscale Discussion | SPC | 64 min |
| May 24, 5:11 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 15, 2:37 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Jun 16, 11:40 AM CDT | Mesoscale Discussion | SPC | 95 min |
| Jun 16, 12:35 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 16, 2:14 PM CDT | Severe Thunderstorm Warning | EAX | 31 min |
| Jun 16, 3:38 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Jun 17, 5:34 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Jun 20, 11:15 PM CDT | Special Weather Statement | EAX | 45 min |
| Jun 26, 4:03 PM CDT | Excessive Heat Warning | EAX | 4 days |
| Jun 26, 4:03 PM CDT | Heat Advisory | EAX | 12 hr |
| Jun 30, 8:45 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Jul 2, 3:36 PM CDT | Heat Advisory | EAX | 5 days |
| Jul 7, 6:36 PM CDT | Special Weather Statement | EAX | 24 min |
| Jul 7, 6:41 PM CDT | Severe Thunderstorm Warning | EAX | 34 min |
| Jul 8, 11:30 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 17, 3:35 PM CDT | Excessive Heat Warning | EAX | 8 days |
| Jul 17, 3:35 PM CDT | Heat Advisory | EAX | 3 days |
| Jul 25, 5:04 AM CDT | Red Flag Warning | EAX | 14 hr |
| Jul 26, 7:07 PM CDT | Special Weather Statement | EAX | 38 min |
| Jul 26, 7:12 PM CDT | Special Weather Statement | EAX | 33 min |
| Aug 4, 10:26 AM CDT | Mesoscale Discussion | SPC | 49 min |
| Aug 8, 4:10 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Aug 8, 8:33 PM CDT | Severe Thunderstorm Warning | EAX | 42 min |
| Aug 8, 9:12 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Aug 8, 9:19 PM CDT | Special Weather Statement | EAX | 26 min |
| Aug 12, 3:39 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 22, 3:34 PM CDT | Red Flag Warning | EAX | 27 hr |
| Sep 22, 4:12 PM CDT | Frost Advisory | EAX | 16 hr |
| Sep 25, 12:51 AM CDT | Mesoscale Discussion | SPC | 114 min |
| Oct 5, 3:14 PM CDT | Freeze Warning | EAX | 17 hr |
| Oct 6, 3:32 AM CDT | Freeze Warning | EAX | 28 hr |
| Oct 22, 1:08 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Dec 1, 9:23 PM CST | Dense Fog Advisory | EAX | 18 hr |
| Dec 2, 7:19 PM CST | Dense Fog Advisory | EAX | 8 hr |
| Dec 17, 2:55 PM CST | Winter Storm Watch | EAX | 24 hr |
| Dec 18, 3:18 PM CST | Winter Storm Warning | EAX | 48 hr |
| Dec 19, 7:32 PM CST | Special Weather Statement | EAX | 28 min |
| Dec 19, 8:15 PM CST | Severe Thunderstorm Warning | EAX | 30 min |
| Dec 30, 12:01 PM CST | Winter Weather Advisory | EAX | 42 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 | 5 |
| Severe Thunderstorm Watch | 4 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 22 |
| Special Weather Statement | 10 |
| Flooding | |
| Flood Watch | 1 |
| Areal Flood Advisory | 1 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 3 |
| Heat | |
| Excessive Heat Warning | 2 |
| Heat Advisory | 3 |
| Cold | |
| Freeze Warning | 3 |
| Frost Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 5 |
| Fire | |
| Red Flag Warning | 4 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
| Freezing Fog Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20112013
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.