Alert archive / Ohio / Greene County
Weather alerts in Greene County, Ohio, 2012
187 weather alerts in 2012, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Greene County and its neighbors
Each county as a circle sized by its count in 2012. Tap one for its archive.
- Alerts
- 187
- Warnings
- 39
- Watches
- 28
- Advisories
- 43
- Busiest month
- July43 alerts
- Busiest day
- June 29, 20129 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 1 tornado warnings covering Greene County in 2012 had a tornado report inside them.
Greene County, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 21 | 16 | 24% | 16 | 75% | 19 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 Wilmington, OH: tornado warnings | 32 | 13 | 59% | 34 | 79% | 15 min |
| NWS Wilmington, OH: severe thunderstorm warnings | 289 | 207 | 28% | 696 | 83% | 21 min |
| NWS Wilmington, OH: flash flood warnings | 30 | 10 | 67% | 26 | 85% | 83 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, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 12, 10:51 AM EST | Winter Weather Advisory | ILN | 25 hr |
| Jan 17, 7:25 AM EST | Mesoscale Discussion | SPC | 65 min |
| Jan 20, 3:53 AM EST | Winter Weather Advisory | ILN | 26 hr |
| Jan 20, 3:21 PM EST | Winter Storm Warning | ILN | 14 hr |
| Jan 20, 6:32 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 22, 3:57 PM EST | Wind Advisory | ILN | 24 hr |
| Jan 23, 1:52 AM EST | Mesoscale Discussion | SPC | 113 min |
| Jan 23, 4:03 AM EST | Special Weather Statement | ILN | 27 min |
| Jan 23, 11:46 AM EST | Mesoscale Discussion | SPC | 89 min |
| Jan 23, 12:45 PM EST | Special Weather Statement | ILN | 90 min |
| Jan 25, 3:42 PM EST | Winter Weather Advisory | ILN | 14 hr |
| Jan 26, 8:19 PM EST | Areal Flood Advisory | ILN | 6 hr |
| Jan 26, 10:14 PM EST | Areal Flood Warning | ILN | 6 hr |
| Jan 27, 1:22 AM EST | Areal Flood Warning | ILN | 27 hr |
| Jan 29, 3:56 AM EST | Wind Advisory | ILN | 12 hr |
| Feb 24, 4:11 AM EST | Wind Advisory | ILN | 13 hr |
| Feb 24, 12:55 PM EST | Special Weather Statement | ILN | 65 min |
| Feb 29, 12:41 PM EST | Mesoscale Discussion | SPC | 3 hr |
| Mar 2, 4:08 AM EST | Wind Advisory | ILN | 24 hr |
| Mar 2, 11:30 AM EST | Mesoscale Discussion | SPC | 90 min |
| Mar 2, 1:02 PM EST | Tornado Watch | SPC | 8 hr |
| Mar 2, 3:35 PM EST | Mesoscale Discussion | SPC | 85 min |
| Mar 4, 3:30 PM EST | Winter Weather Advisory | ILN | 17 hr |
| Mar 7, 9:40 AM EST | Wind Advisory | ILN | 8 hr |
| Mar 15, 11:55 AM EDT | Special Weather Statement | ILN | 65 min |
| Mar 15, 11:59 AM EDT | Areal Flood Advisory | ILN | 3 hr |
| Mar 15, 5:28 PM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Mar 15, 7:23 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Mar 16, 8:33 AM EDT | Areal Flood Advisory | ILN | 117 min |
| Mar 17, 4:56 AM EDT | Dense Fog Advisory | ILN | 4 hr |
| Mar 18, 1:49 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 18, 5:17 PM EDT | Special Weather Statement | ILN | 28 min |
| Mar 18, 5:25 PM EDT | Severe Thunderstorm Warning | ILN | 35 min |
| Mar 18, 7:44 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Mar 18, 11:06 PM EDT | Special Weather Statement | ILN | 54 min |
| Mar 23, 8:16 PM EDT | Tornado Warning | ILN | 29 min |
| Mar 25, 4:17 AM EDT | Freeze Watch | ILN | 24 hr |
| Mar 26, 4:13 AM EDT | Freeze Warning | ILN | 30 hr |
| Mar 30, 2:12 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Mar 30, 3:24 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Mar 30, 7:02 PM EDT | Mesoscale Discussion | SPC | 28 min |
| Mar 30, 7:32 PM EDT | Severe Thunderstorm Warning | ILN | 58 min |
| Apr 1, 6:20 PM EDT | Special Weather Statement | ILN | 55 min |
| Apr 1, 9:23 PM EDT | Mesoscale Discussion | SPC | 67 min |
| Apr 4, 4:19 AM EDT | Areal Flood Advisory | ILN | 3 hr |
| Apr 4, 4:09 PM EDT | Freeze Watch | ILN | 23 hr |
| Apr 5, 3:23 PM EDT | Freeze Watch | ILN | 13 hr |
| Apr 5, 3:23 PM EDT | Freeze Warning | ILN | 18 hr |
| Apr 6, 4:09 AM EDT | Freeze Warning | ILN | 29 hr |
| Apr 9, 4:12 AM EDT | Freeze Watch | ILN | 36 hr |
| Apr 10, 3:19 PM EDT | Freeze Watch | ILN | 12 hr |
| Apr 10, 3:19 PM EDT | Freeze Warning | ILN | 18 hr |
| Apr 11, 3:45 AM EDT | Freeze Warning | ILN | 29 hr |
| Apr 12, 3:50 PM EDT | Frost Advisory | ILN | 17 hr |
| Apr 15, 11:47 AM EDT | Wind Advisory | ILN | 4 hr |
| Apr 16, 4:00 AM EDT | Wind Advisory | ILN | 15 hr |
| Apr 20, 8:59 PM EDT | Special Weather Statement | ILN | 31 min |
| Apr 22, 3:57 AM EDT | Freeze Watch | ILN | 12 hr |
| Apr 22, 3:48 PM EDT | Freeze Warning | ILN | 12 hr |
| Apr 23, 3:52 PM EDT | Freeze Warning | ILN | 10 hr |
| Apr 30, 4:52 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Apr 30, 6:04 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 30, 7:55 PM EDT | Special Weather Statement | ILN | 65 min |
| Apr 30, 9:07 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Apr 30, 9:36 PM EDT | Areal Flood Advisory | ILN | 114 min |
| May 1, 2:44 PM EDT | Mesoscale Discussion | SPC | 61 min |
| May 1, 3:01 PM EDT | Tornado Watch | SPC | 7 hr |
| May 1, 6:05 PM EDT | Severe Thunderstorm Warning | ILN | 40 min |
| May 1, 6:31 PM EDT | Tornado Watch | SPC | 5 hr |
| May 1, 9:33 PM EDT | Mesoscale Discussion | SPC | 57 min |
| May 1, 9:59 PM EDT | Special Weather Statement | ILN | 31 min |
| May 1, 10:30 PM EDT | Areal Flood Advisory | ILN | 3 hr |
| May 2, 1:12 AM EDT | Special Weather Statement | ILN | 33 min |
| May 4, 4:59 PM EDT | Severe Thunderstorm Warning | ILN | 34 min |
| May 4, 5:08 PM EDT | Severe Thunderstorm Warning | ILN | 26 min |
| May 4, 7:36 PM EDT | Areal Flood Advisory | ILN | 5 hr |
| May 4, 7:52 PM EDT | Mesoscale Discussion | SPC | 53 min |
| May 4, 9:20 PM EDT | Flash Flood Watch | ILN | 9 hr |
| May 7, 4:09 PM EDT | Mesoscale Discussion | SPC | 96 min |
| May 25, 6:12 PM EDT | Mesoscale Discussion | SPC | 93 min |
| May 28, 5:31 PM EDT | Special Weather Statement | ILN | 29 min |
| May 28, 6:02 PM EDT | Special Weather Statement | ILN | 28 min |
| Jun 16, 3:44 PM EDT | Severe Thunderstorm Warning | ILN | 34 min |
| Jun 17, 2:32 PM EDT | Special Weather Statement | ILN | 43 min |
| Jun 27, 3:57 AM EDT | Fire Weather Watch | ILN | 12 hr |
| Jun 27, 3:57 AM EDT | Heat Advisory | ILN | 56 hr |
| Jun 27, 3:20 PM EDT | Excessive Heat Warning | ILN | 51 hr |
| Jun 27, 3:41 PM EDT | Red Flag Warning | ILN | 28 hr |
| Jun 29, 2:01 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Jun 29, 3:02 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 29, 3:07 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Jun 29, 3:17 PM EDT | Heat Advisory | ILN | 29 hr |
| Jun 29, 3:39 PM EDT | Special Weather Statement | ILN | 66 min |
| Jun 29, 3:50 PM EDT | Severe Thunderstorm Warning | ILN | 25 min |
| Jun 29, 4:12 PM EDT | Severe Thunderstorm Warning | ILN | 48 min |
| Jun 29, 4:19 PM EDT | Special Weather Statement | ILN | 116 min |
| Jun 29, 4:22 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Jun 30, 12:46 AM EDT | Mesoscale Discussion | SPC | 119 min |
| Jun 30, 5:23 AM EDT | Mesoscale Discussion | SPC | 97 min |
| Jun 30, 3:42 PM EDT | Heat Advisory | ILN | 28 hr |
| Jun 30, 5:27 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jun 30, 6:55 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 1, 1:16 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 1, 3:24 PM EDT | Heat Advisory | ILN | 29 hr |
| Jul 1, 3:56 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jul 1, 5:12 PM EDT | Severe Thunderstorm Warning | ILN | 37 min |
| Jul 1, 5:29 PM EDT | Severe Thunderstorm Warning | ILN | 46 min |
| Jul 1, 5:45 PM EDT | Severe Thunderstorm Warning | ILN | 45 min |
| Jul 1, 5:45 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Jul 1, 6:06 PM EDT | Areal Flood Advisory | ILN | 106 min |
| Jul 2, 3:56 PM EDT | Heat Advisory | ILN | 28 hr |
| Jul 3, 3:39 PM EDT | Excessive Heat Warning | ILN | 4 days |
| Jul 3, 3:39 PM EDT | Heat Advisory | ILN | 24 hr |
| Jul 4, 9:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jul 4, 10:19 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 4, 10:51 PM EDT | Special Weather Statement | ILN | 39 min |
| Jul 5, 5:58 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jul 15, 8:57 PM EDT | Severe Thunderstorm Warning | ILN | 33 min |
| Jul 15, 9:20 PM EDT | Special Weather Statement | ILN | 25 min |
| Jul 15, 9:38 PM EDT | Special Weather Statement | ILN | 37 min |
| Jul 15, 10:12 PM EDT | Special Weather Statement | ILN | 33 min |
| Jul 16, 3:34 PM EDT | Heat Advisory | ILN | 28 hr |
| Jul 18, 10:34 AM EDT | Heat Advisory | ILN | 8 hr |
| Jul 18, 12:54 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 18, 1:16 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 18, 2:33 PM EDT | Special Weather Statement | ILN | 27 min |
| Jul 18, 4:21 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Jul 24, 10:08 AM EDT | Mesoscale Discussion | SPC | 97 min |
| Jul 24, 10:35 AM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jul 24, 11:13 AM EDT | Severe Thunderstorm Warning | ILN | 32 min |
| Jul 24, 11:22 AM EDT | Severe Thunderstorm Warning | ILN | 23 min |
| Jul 24, 11:59 AM EDT | Mesoscale Discussion | SPC | 61 min |
| Jul 25, 3:07 PM EDT | Heat Advisory | ILN | 26 hr |
| Jul 25, 4:48 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Jul 25, 9:36 PM EDT | Special Weather Statement | ILN | 39 min |
| Jul 26, 12:26 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 26, 1:16 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 26, 3:01 PM EDT | Severe Thunderstorm Warning | ILN | 44 min |
| Jul 26, 3:36 PM EDT | Severe Thunderstorm Warning | ILN | 39 min |
| Jul 26, 3:37 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jul 26, 5:49 PM EDT | Special Weather Statement | ILN | 41 min |
| Jul 26, 6:13 PM EDT | Severe Thunderstorm Warning | ILN | 26 min |
| Jul 27, 1:52 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 27, 2:43 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 27, 5:15 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Aug 4, 10:55 AM EDT | Heat Advisory | ILN | 9 hr |
| Aug 5, 4:57 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 5, 5:29 AM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Aug 5, 7:57 AM EDT | Mesoscale Discussion | SPC | 63 min |
| Aug 9, 12:49 AM EDT | Severe Thunderstorm Warning | ILN | 26 min |
| Aug 9, 1:23 AM EDT | Special Weather Statement | ILN | 37 min |
| Sep 5, 1:08 AM EDT | Dense Fog Advisory | ILN | 9 hr |
| Sep 5, 2:10 PM EDT | Mesoscale Discussion | SPC | 65 min |
| Sep 7, 11:36 AM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 7, 3:39 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Sep 7, 4:23 PM EDT | Severe Thunderstorm Warning | ILN | 52 min |
| Sep 7, 4:41 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 7, 8:39 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Sep 7, 9:10 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 7, 11:52 PM EDT | Special Weather Statement | ILN | 68 min |
| Sep 8, 12:11 AM EDT | Severe Thunderstorm Warning | ILN | 34 min |
| Sep 8, 12:57 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 8, 12:58 AM EDT | Severe Thunderstorm Warning | ILN | 32 min |
| Sep 21, 7:30 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 21, 9:43 PM EDT | Special Weather Statement | ILN | 47 min |
| Sep 21, 10:06 PM EDT | Special Weather Statement | ILN | 39 min |
| Sep 23, 4:07 AM EDT | Frost Advisory | ILN | 29 hr |
| Oct 6, 4:06 AM EDT | Freeze Watch | ILN | 24 hr |
| Oct 7, 4:02 AM EDT | Freeze Warning | ILN | 29 hr |
| Oct 8, 2:03 PM EDT | Frost Advisory | ILN | 19 hr |
| Oct 9, 3:37 PM EDT | Freeze Watch | ILN | 12 hr |
| Oct 10, 3:17 AM EDT | Freeze Warning | ILN | 31 hr |
| Oct 14, 3:53 AM EDT | Wind Advisory | ILN | 18 hr |
| Oct 14, 6:31 PM EDT | Special Weather Statement | ILN | 44 min |
| Oct 20, 3:31 AM EDT | Frost Advisory | ILN | 29 hr |
| Oct 28, 2:16 PM EDT | Wind Advisory | ILN | 45 hr |
| Oct 30, 4:34 AM EDT | Mesoscale Discussion | SPC | 4 hr |
| Oct 31, 2:48 PM EDT | Freeze Warning | ILN | 15 hr |
| Dec 2, 10:26 PM EST | Dense Fog Advisory | ILN | 9 hr |
| Dec 7, 5:21 AM EST | Dense Fog Advisory | ILN | 4 hr |
| Dec 19, 3:48 PM EST | Wind Advisory | ILN | 48 hr |
| Dec 19, 3:48 PM EST | Winter Weather Advisory | ILN | 54 hr |
| Dec 24, 3:56 AM EST | Winter Storm Watch | ILN | 36 hr |
| Dec 25, 4:14 AM EST | Winter Storm Warning | ILN | 35 hr |
| Dec 25, 3:46 PM EST | Winter Weather Advisory | ILN | 27 hr |
| Dec 26, 3:25 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Dec 28, 3:31 AM EST | Winter Weather Advisory | ILN | 30 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 | 21 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 14 |
| Tornado Watch | 3 |
| Mesoscale Discussion | 49 |
| Special Weather Statement | 28 |
| Flooding | |
| Areal Flood Warning | 2 |
| Flash Flood Watch | 1 |
| Areal Flood Advisory | 8 |
| Winter | |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 7 |
| Heat | |
| Excessive Heat Warning | 2 |
| Heat Advisory | 10 |
| Cold | |
| Freeze Warning | 10 |
| Freeze Watch | 8 |
| Frost Advisory | 4 |
| Wind and dust | |
| Wind Advisory | 10 |
| Fire | |
| Red Flag Warning | 1 |
| Fire Weather Watch | 1 |
| 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 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.