Alert archive / Ohio / Putnam County
Weather alerts in Putnam County, Ohio, 2021
92 weather alerts in 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Putnam County and its neighbors
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Alerts
- 92
- Warnings
- 18
- Watches
- 9
- Advisories
- 34
- Busiest month
- August19 alerts
- Busiest day
- August 11, 20219 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Putnam County, 2021
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 5 | 4 | 20% | 0 | ||
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2021
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Northern Indiana: tornado warnings | 14 | 1 | 93% | 9 | 11% | 3 min |
| NWS Northern Indiana: severe thunderstorm warnings | 128 | 77 | 40% | 377 | 58% | 19 min |
| NWS Northern Indiana: flash flood warnings | 6 | 3 | 50% | 25 | 84% | 59 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 24, 3:49 PM EST | Winter Weather Advisory | IWX | 45 hr |
| Jan 29, 4:07 AM EST | Winter Storm Watch | IWX | 23 hr |
| Jan 30, 3:29 AM EST | Winter Storm Warning | IWX | 35 hr |
| Jan 30, 10:39 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 4, 12:01 AM EST | Dense Fog Advisory | IWX | 3 hr |
| Feb 13, 3:10 PM EST | Winter Weather Advisory | IWX | 25 hr |
| Feb 14, 3:41 PM EST | Winter Storm Warning | IWX | 42 hr |
| Feb 15, 3:52 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Mar 17, 3:46 PM EDT | Wind Advisory | IWX | 29 hr |
| Mar 19, 9:11 AM EDT | River Flood Warning | IWX | 26 hr |
| Mar 24, 3:47 AM EDT | High Wind Watch | IWX | 24 hr |
| Mar 25, 4:02 AM EDT | High Wind Warning | IWX | 26 hr |
| Apr 17, 3:52 PM EDT | Frost Advisory | IWX | 17 hr |
| Apr 19, 4:24 AM EDT | Freeze Watch | IWX | 11 hr |
| Apr 19, 3:40 PM EDT | Freeze Warning | IWX | 64 hr |
| Apr 20, 3:49 AM EDT | Winter Weather Advisory | IWX | 23 hr |
| Apr 22, 3:12 PM EDT | Frost Advisory | IWX | 18 hr |
| Apr 24, 11:31 PM EDT | Dense Fog Advisory | IWX | 6 hr |
| May 9, 9:57 AM EDT | River Flood Warning | IWX | 3 days |
| May 9, 9:57 AM EDT | River Flood Warning | IWX | 30 hr |
| May 9, 2:46 PM EDT | Areal Flood Advisory | IWX | 3 hr |
| May 9, 2:47 PM EDT | Frost Advisory | IWX | 17 hr |
| May 10, 11:23 AM EDT | River Flood Warning | IWX | 64 hr |
| May 10, 2:56 PM EDT | Frost Advisory | IWX | 17 hr |
| May 11, 1:09 PM EDT | Frost Advisory | IWX | 19 hr |
| May 12, 3:23 PM EDT | Frost Advisory | IWX | 16 hr |
| Jun 8, 12:06 PM EDT | Special Weather Statement | IWX | 24 min |
| Jun 8, 1:02 PM EDT | Areal Flood Warning | IWX | 3 hr |
| Jun 8, 2:47 PM EDT | Areal Flood Advisory | IWX | 118 min |
| Jun 8, 7:09 PM EDT | Areal Flood Advisory | IWX | 51 min |
| Jun 18, 8:22 AM EDT | Special Weather Statement | IWX | 53 min |
| Jun 18, 3:37 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Jun 19, 8:14 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Jun 19, 8:50 PM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jun 20, 6:06 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 20, 8:14 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Jun 20, 11:32 PM EDT | Special Weather Statement | IWX | 43 min |
| Jun 20, 11:51 PM EDT | Mesoscale Discussion | SPC | 54 min |
| Jun 21, 4:11 AM EDT | Special Weather Statement | IWX | 34 min |
| Jun 25, 5:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jun 29, 12:54 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 30, 1:43 PM EDT | Areal Flood Warning | IWX | 3 hr |
| Jul 7, 12:07 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Jul 7, 1:31 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 7, 2:11 PM EDT | Special Weather Statement | IWX | 34 min |
| Jul 7, 2:15 PM EDT | Areal Flood Advisory | IWX | 2 hr |
| Jul 7, 2:43 PM EDT | Severe Thunderstorm Warning | IWX | 17 min |
| Jul 7, 3:59 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Jul 15, 4:20 PM EDT | Special Weather Statement | IWX | 40 min |
| Jul 15, 4:51 PM EDT | Special Weather Statement | IWX | 24 min |
| Jul 15, 5:17 PM EDT | Special Weather Statement | IWX | 28 min |
| Jul 17, 12:52 AM EDT | Areal Flood Advisory | IWX | 3 hr |
| Jul 24, 8:31 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Jul 29, 5:55 AM EDT | Mesoscale Discussion | SPC | 95 min |
| Jul 29, 6:07 AM EDT | Severe Thunderstorm Warning | IWX | 38 min |
| Jul 29, 6:56 AM EDT | Special Weather Statement | IWX | 49 min |
| Aug 9, 3:29 PM EDT | Heat Advisory | IWX | 29 hr |
| Aug 9, 3:30 PM EDT | Special Weather Statement | IWX | 15 min |
| Aug 10, 3:27 PM EDT | Heat Advisory | IWX | 29 hr |
| Aug 10, 5:58 PM EDT | Severe Thunderstorm Warning | IWX | 62 min |
| Aug 10, 10:57 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Aug 11, 7:28 AM EDT | Special Weather Statement | IWX | 32 min |
| Aug 11, 7:57 AM EDT | Special Weather Statement | IWX | 33 min |
| Aug 11, 9:07 AM EDT | Areal Flood Warning | IWX | 3 hr |
| Aug 11, 11:50 AM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Aug 11, 1:26 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Aug 11, 2:12 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Aug 11, 2:14 PM EDT | Severe Thunderstorm Warning | IWX | 46 min |
| Aug 11, 2:48 PM EDT | Severe Thunderstorm Warning | IWX | 57 min |
| Aug 12, 3:17 AM EDT | Heat Advisory | IWX | 17 hr |
| Aug 18, 5:45 AM EDT | Dense Fog Advisory | IWX | 3 hr |
| Aug 24, 3:30 AM EDT | Heat Advisory | IWX | 18 hr |
| Aug 24, 3:53 PM EDT | Heat Advisory | IWX | 29 hr |
| Aug 25, 9:28 PM EDT | Heat Advisory | IWX | 12 hr |
| Aug 29, 9:14 PM EDT | Special Weather Statement | IWX | 46 min |
| Sep 14, 7:46 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Sep 21, 4:29 AM EDT | Flood Watch | IWX | 47 hr |
| Sep 22, 1:15 PM EDT | River Flood Warning | IWX | 18 hr |
| Sep 22, 1:15 PM EDT | River Flood Warning | IWX | 9 hr |
| Oct 3, 6:35 PM EDT | Special Weather Statement | IWX | 55 min |
| Oct 5, 5:12 AM EDT | Dense Fog Advisory | IWX | 5 hr |
| Oct 15, 3:19 PM EDT | Special Weather Statement | IWX | 41 min |
| Oct 23, 2:29 PM EDT | Flood Watch | IWX | 37 hr |
| Oct 26, 3:08 PM EDT | Frost Advisory | IWX | 19 hr |
| Nov 9, 11:36 PM EST | Dense Fog Advisory | IWX | 9 hr |
| Nov 27, 10:46 AM EST | Winter Weather Advisory | IWX | 11 hr |
| Dec 4, 12:59 AM EST | Dense Fog Advisory | IWX | 10 hr |
| Dec 9, 8:54 PM EST | Dense Fog Advisory | IWX | 15 hr |
| Dec 10, 12:03 PM EST | Wind Advisory | IWX | 29 hr |
| Dec 15, 3:37 AM EST | Wind Advisory | IWX | 36 hr |
| Dec 27, 11:13 AM EST | Dense Fog Advisory | IWX | 8 hr |
| Dec 30, 5:38 PM EST | Dense Fog Advisory | IWX | 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 | 5 |
| Severe Thunderstorm Watch | 4 |
| Mesoscale Discussion | 16 |
| Special Weather Statement | 15 |
| Flooding | |
| Areal Flood Warning | 3 |
| River Flood Warning | 6 |
| Flood Watch | 2 |
| Areal Flood Advisory | 5 |
| Winter | |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 4 |
| Heat | |
| Heat Advisory | 6 |
| Cold | |
| Freeze Warning | 1 |
| Freeze Watch | 1 |
| Frost Advisory | 7 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 1 |
| Wind Advisory | 3 |
| Fog and smoke | |
| Dense Fog Advisory | 9 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20202022
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.