Alert archive / Ohio / Miami County
Weather alerts in Miami County, Ohio, 2018
124 weather alerts in 2018, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Miami County and its neighbors
Each county as a circle sized by its count in 2018. Tap one for its archive.
- Alerts
- 124
- Warnings
- 20
- Watches
- 13
- Advisories
- 35
- Busiest month
- May21 alerts
- Busiest day
- April 3, 201813 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 reports fell inside a warning.
Miami County, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 1 | 0% | |||
| Severe thunderstorm warnings | 11 | 6 | 45% | 3 | 100% | 15 min |
| Flash flood warnings | 1 | 1 | 0% | 0 |
Each office's whole area, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Wilmington, OH: tornado warnings | 18 | 5 | 72% | 10 | 80% | 8 min |
| NWS Wilmington, OH: severe thunderstorm warnings | 157 | 96 | 39% | 361 | 52% | 16 min |
| NWS Wilmington, OH: flash flood warnings | 39 | 23 | 41% | 66 | 85% | 65 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 2, 2:33 PM EST | Wind Chill Advisory | ILN | 19 hr |
| Jan 3, 2:36 PM EST | Wind Chill Advisory | ILN | 17 hr |
| Jan 4, 7:48 AM EST | Wind Chill Advisory | ILN | 51 hr |
| Jan 6, 3:47 PM EST | Wind Chill Advisory | ILN | 18 hr |
| Jan 7, 3:57 AM EST | Winter Weather Advisory | ILN | 34 hr |
| Jan 8, 1:00 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 10, 5:55 AM EST | Winter Weather Advisory | ILN | 3 hr |
| Jan 11, 4:11 AM EST | Winter Storm Watch | ILN | 11 hr |
| Jan 11, 3:23 PM EST | Winter Weather Advisory | ILN | 38 hr |
| Jan 12, 8:51 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 12, 2:58 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 14, 3:28 PM EST | Winter Weather Advisory | ILN | 48 hr |
| Jan 15, 4:07 AM EST | Wind Chill Advisory | ILN | 32 hr |
| Jan 22, 8:51 PM EST | Special Weather Statement | ILN | 24 min |
| Jan 22, 8:59 PM EST | Severe Thunderstorm Warning | ILN | 18 min |
| Jan 27, 11:00 PM EST | Dense Fog Advisory | ILN | 12 hr |
| Feb 4, 7:24 PM EST | Winter Weather Advisory | ILN | 5 hr |
| Feb 6, 3:07 AM EST | Winter Weather Advisory | ILN | 34 hr |
| Feb 10, 3:34 PM EST | Winter Weather Advisory | ILN | 24 hr |
| Feb 15, 3:44 AM EST | Flood Watch | ILN | 34 hr |
| Feb 15, 6:51 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Feb 21, 2:49 PM EST | Flood Watch | ILN | 4 days |
| Mar 1, 1:58 PM EST | Severe Thunderstorm Warning | ILN | 32 min |
| Mar 8, 1:13 AM EST | Special Weather Statement | ILN | 47 min |
| Mar 8, 6:54 AM EST | Special Weather Statement | ILN | 51 min |
| Mar 8, 7:43 AM EST | Special Weather Statement | ILN | 32 min |
| Mar 13, 5:11 PM EDT | Special Weather Statement | ILN | 34 min |
| Mar 13, 6:39 PM EDT | Special Weather Statement | ILN | 36 min |
| Mar 16, 4:03 AM EDT | Winter Weather Advisory | ILN | 30 hr |
| Mar 17, 4:59 AM EDT | Mesoscale Discussion | SPC | 4 hr |
| Mar 19, 3:37 PM EDT | Winter Weather Advisory | ILN | 46 hr |
| Mar 28, 8:40 PM EDT | Dense Fog Advisory | ILN | 10 hr |
| Apr 2, 9:02 PM EDT | Flash Flood Watch | ILN | 29 hr |
| Apr 3, 5:27 AM EDT | Areal Flood Advisory | ILN | 3 hr |
| Apr 3, 11:55 AM EDT | Areal Flood Advisory | ILN | 3 hr |
| Apr 3, 12:41 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 3, 1:16 PM EDT | Tornado Watch | SPC | 6 hr |
| Apr 3, 2:57 PM EDT | River Flood Warning | ILN | 36 hr |
| Apr 3, 2:57 PM EDT | River Flood Warning | ILN | 50 hr |
| Apr 3, 3:38 PM EDT | Special Weather Statement | ILN | 37 min |
| Apr 3, 3:54 PM EDT | Flash Flood Warning | ILN | 3 hr |
| Apr 3, 4:18 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Apr 3, 4:19 PM EDT | Severe Thunderstorm Warning | ILN | 26 min |
| Apr 3, 6:44 PM EDT | Areal Flood Warning | ILN | 12 hr |
| Apr 3, 7:30 PM EDT | Tornado Watch | SPC | 5 hr |
| Apr 4, 3:42 AM EDT | Wind Advisory | ILN | 9 hr |
| Apr 11, 8:00 PM EDT | Wind Advisory | ILN | 22 hr |
| Apr 15, 10:20 AM EDT | Special Weather Statement | ILN | 40 min |
| Apr 15, 10:59 AM EDT | Special Weather Statement | ILN | 46 min |
| Apr 28, 3:38 AM EDT | Freeze Warning | ILN | 29 hr |
| Apr 29, 9:38 AM EDT | Frost Advisory | ILN | 23 hr |
| Apr 30, 8:22 PM EDT | Fire Weather Watch | ILN | 14 hr |
| May 1, 10:08 AM EDT | Red Flag Warning | ILN | 10 hr |
| May 3, 10:48 AM EDT | Special Weather Statement | ILN | 42 min |
| May 4, 2:53 PM EDT | Severe Thunderstorm Warning | ILN | 37 min |
| May 12, 4:20 PM EDT | Mesoscale Discussion | SPC | 115 min |
| May 15, 4:40 PM EDT | Special Weather Statement | ILN | 35 min |
| May 15, 4:50 PM EDT | Severe Thunderstorm Warning | ILN | 25 min |
| May 21, 4:15 PM EDT | Mesoscale Discussion | SPC | 60 min |
| May 21, 4:59 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 21, 7:25 PM EDT | Special Weather Statement | ILN | 50 min |
| May 21, 8:03 PM EDT | Mesoscale Discussion | SPC | 117 min |
| May 22, 12:57 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| May 22, 1:42 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 22, 3:48 PM EDT | Mesoscale Discussion | SPC | 117 min |
| May 30, 3:38 PM EDT | Severe Thunderstorm Warning | ILN | 20 min |
| May 30, 3:40 PM EDT | Special Weather Statement | ILN | 50 min |
| May 30, 4:35 PM EDT | Mesoscale Discussion | SPC | 115 min |
| May 30, 8:55 PM EDT | Special Weather Statement | ILN | 50 min |
| May 31, 2:30 PM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| May 31, 4:44 PM EDT | Mesoscale Discussion | SPC | 91 min |
| May 31, 4:57 PM EDT | Severe Thunderstorm Warning | ILN | 33 min |
| Jun 8, 5:39 PM EDT | Special Weather Statement | ILN | 36 min |
| Jun 8, 6:09 PM EDT | Severe Thunderstorm Warning | ILN | 15 min |
| Jun 8, 6:39 PM EDT | Special Weather Statement | ILN | 36 min |
| Jun 9, 4:13 PM EDT | Severe Thunderstorm Warning | ILN | 47 min |
| Jun 9, 4:50 PM EDT | Severe Thunderstorm Warning | ILN | 23 min |
| Jun 13, 3:28 PM EDT | Special Weather Statement | ILN | 62 min |
| Jun 13, 4:14 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 16, 4:52 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Jun 18, 3:04 AM EDT | Heat Advisory | ILN | 16 hr |
| Jun 19, 1:37 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jun 21, 12:15 PM EDT | Flash Flood Watch | ILN | 12 hr |
| Jun 22, 11:02 AM EDT | Flash Flood Watch | ILN | 12 hr |
| Jun 26, 1:10 PM EDT | Special Weather Statement | ILN | 35 min |
| Jun 26, 1:18 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jul 1, 4:58 PM EDT | Special Weather Statement | ILN | 32 min |
| Jul 3, 4:05 AM EDT | Heat Advisory | ILN | 62 hr |
| Jul 3, 5:06 PM EDT | Special Weather Statement | ILN | 24 min |
| Jul 3, 5:31 PM EDT | Special Weather Statement | ILN | 29 min |
| Jul 31, 4:01 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 2, 7:31 AM EDT | Dense Fog Advisory | ILN | 89 min |
| Aug 8, 6:08 PM EDT | Special Weather Statement | ILN | 37 min |
| Aug 10, 5:48 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Aug 10, 10:18 PM EDT | Special Weather Statement | ILN | 27 min |
| Aug 12, 2:26 PM EDT | Special Weather Statement | ILN | 34 min |
| Aug 25, 5:20 PM EDT | Special Weather Statement | ILN | 25 min |
| Sep 1, 4:16 PM EDT | Special Weather Statement | ILN | 29 min |
| Sep 4, 7:22 PM EDT | Special Weather Statement | ILN | 8 min |
| Sep 5, 2:57 PM EDT | Special Weather Statement | ILN | 33 min |
| Sep 5, 3:30 PM EDT | Special Weather Statement | ILN | 30 min |
| Sep 5, 3:40 PM EDT | Severe Thunderstorm Warning | ILN | 22 min |
| Sep 7, 3:38 AM EDT | Flash Flood Watch | ILN | 68 hr |
| Sep 8, 3:50 AM EDT | Areal Flood Advisory | ILN | 7 hr |
| Sep 8, 4:44 AM EDT | Areal Flood Advisory | ILN | 8 hr |
| Sep 14, 1:12 AM EDT | Dense Fog Advisory | ILN | 10 hr |
| Sep 15, 6:12 AM EDT | Dense Fog Advisory | ILN | 4 hr |
| Oct 2, 2:55 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 2, 3:54 PM EDT | Special Weather Statement | ILN | 36 min |
| Oct 2, 4:26 PM EDT | Special Weather Statement | ILN | 34 min |
| Oct 6, 2:04 PM EDT | Special Weather Statement | ILN | 26 min |
| Oct 6, 3:26 PM EDT | Special Weather Statement | ILN | 34 min |
| Oct 15, 3:14 AM EDT | Frost Advisory | ILN | 30 hr |
| Oct 15, 9:20 AM EDT | Freeze Warning | ILN | 24 hr |
| Oct 17, 3:20 AM EDT | Freeze Warning | ILN | 31 hr |
| Oct 20, 4:01 AM EDT | Wind Advisory | ILN | 20 hr |
| Oct 28, 3:49 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Nov 14, 3:55 AM EST | Winter Weather Advisory | ILN | 31 hr |
| Nov 15, 1:11 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Nov 15, 1:24 AM EST | Ice Storm Warning | ILN | 10 hr |
| Nov 30, 3:38 AM EST | Dense Fog Advisory | ILN | 8 hr |
| Dec 20, 9:10 PM EST | Areal Flood Advisory | ILN | 3 hr |
| Dec 27, 3:10 PM EST | Wind Advisory | ILN | 9 hr |
| Dec 31, 3:52 AM EST | Wind Advisory | ILN | 22 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 | 11 |
| Severe Thunderstorm Watch | 3 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 23 |
| Special Weather Statement | 33 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 1 |
| River Flood Warning | 2 |
| Flash Flood Watch | 4 |
| Flood Watch | 2 |
| Areal Flood Advisory | 5 |
| Winter | |
| Ice Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 10 |
| Heat | |
| Heat Advisory | 2 |
| Cold | |
| Freeze Warning | 3 |
| Frost Advisory | 2 |
| Wind Chill Advisory | 5 |
| Wind and dust | |
| Wind Advisory | 5 |
| Fire | |
| Red Flag Warning | 1 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 6 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20172019
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.