Alert archive / Indiana / Blackford County
Weather alerts in Blackford County, Indiana, 2017
117 weather alerts in 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Blackford County and its neighbors
Each county as a circle sized by its count in 2017. Tap one for its archive.
- Alerts
- 117
- Warnings
- 17
- Watches
- 18
- Advisories
- 23
- Busiest month
- March19 alerts
- Busiest day
- November 5, 20177 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
1 of 3 tornado warnings covering Blackford County in 2017 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 20 minutes after it went out.
Blackford County, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 3 | 1 | 67% | 1 | 100% | 20 min |
| Severe thunderstorm warnings | 7 | 3 | 57% | 2 | 100% | 23 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Northern Indiana: tornado warnings | 26 | 6 | 77% | 17 | 71% | 10 min |
| NWS Northern Indiana: severe thunderstorm warnings | 126 | 61 | 52% | 263 | 56% | 17 min |
| NWS Northern Indiana: flash flood warnings | 9 | 3 | 67% | 12 | 75% | 103 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 3, 4:01 AM EST | Dense Fog Advisory | IWX | 8 hr |
| Jan 10, 4:05 AM EST | Wind Advisory | IWX | 19 hr |
| Jan 10, 6:49 PM EST | Special Weather Statement | IWX | 41 min |
| Jan 10, 7:45 PM EST | Special Weather Statement | IWX | 45 min |
| Jan 11, 11:21 PM EST | Special Weather Statement | IWX | 114 min |
| Jan 12, 12:29 AM EST | Special Weather Statement | IWX | 61 min |
| Feb 7, 12:40 AM EST | Dense Fog Advisory | IWX | 6 hr |
| Feb 8, 3:56 AM EST | Winter Weather Advisory | IWX | 17 hr |
| Feb 20, 3:50 AM EST | Dense Fog Advisory | IWX | 7 hr |
| Feb 24, 3:07 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Feb 24, 3:44 PM EST | Severe Thunderstorm Watch | SPC | 6 hr |
| Feb 24, 5:56 PM EST | Mesoscale Discussion | SPC | 94 min |
| Feb 28, 11:03 PM EST | Mesoscale Discussion | SPC | 117 min |
| Feb 28, 11:29 PM EST | Tornado Watch | SPC | 8 hr |
| Mar 1, 1:44 AM EST | Mesoscale Discussion | SPC | 61 min |
| Mar 1, 2:59 AM EST | Severe Thunderstorm Warning | IWX | 46 min |
| Mar 1, 10:54 AM EST | Wind Advisory | IWX | 11 hr |
| Mar 7, 4:25 AM EST | Special Weather Statement | IWX | 50 min |
| Mar 7, 5:18 AM EST | Special Weather Statement | IWX | 57 min |
| Mar 7, 3:21 PM EST | Wind Advisory | IWX | 27 hr |
| Mar 12, 4:01 AM EDT | Winter Weather Advisory | IWX | 35 hr |
| Mar 17, 11:45 PM EDT | Dense Fog Advisory | IWX | 6 hr |
| Mar 20, 9:03 AM EDT | Areal Flood Advisory | IWX | 3 hr |
| Mar 20, 12:19 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 21, 1:13 AM EDT | Dense Fog Advisory | IWX | 9 hr |
| Mar 30, 3:03 PM EDT | Tornado Watch | SPC | 5 hr |
| Mar 30, 4:27 PM EDT | Mesoscale Discussion | SPC | 33 min |
| Mar 30, 5:30 PM EDT | Severe Thunderstorm Warning | IWX | 60 min |
| Mar 30, 5:45 PM EDT | Tornado Warning | IWX | 45 min |
| Mar 30, 7:05 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Mar 30, 7:52 PM EDT | Special Weather Statement | IWX | 53 min |
| Apr 5, 3:24 PM EDT | Special Weather Statement | IWX | 51 min |
| Apr 5, 3:25 PM EDT | Wind Advisory | IWX | 30 hr |
| Apr 5, 8:32 PM EDT | Special Weather Statement | IWX | 28 min |
| Apr 10, 4:25 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 20, 1:36 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Apr 20, 2:08 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 20, 4:31 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Apr 20, 7:01 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Apr 26, 5:58 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Apr 26, 8:13 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Apr 26, 8:28 PM EDT | Severe Thunderstorm Warning | IWX | 38 min |
| May 1, 7:51 AM EDT | River Flood Warning | IWX | 52 hr |
| May 3, 3:53 AM EDT | Flood Watch | IWX | 47 hr |
| May 4, 10:39 AM EDT | River Flood Warning | IWX | 4 days |
| May 4, 4:42 PM EDT | Areal Flood Warning | IWX | 24 hr |
| May 5, 4:31 PM EDT | Areal Flood Warning | IWX | 12 hr |
| May 7, 3:40 AM EDT | Frost Advisory | IWX | 28 hr |
| May 18, 9:23 PM EDT | Special Weather Statement | IWX | 52 min |
| May 19, 12:20 AM EDT | Special Weather Statement | IWX | 40 min |
| May 20, 7:07 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 24, 11:47 AM EDT | Mesoscale Discussion | SPC | 58 min |
| May 25, 12:50 AM EDT | Areal Flood Advisory | IWX | 6 hr |
| May 26, 3:59 AM EDT | Flash Flood Watch | IWX | 24 hr |
| May 26, 10:28 PM EDT | Mesoscale Discussion | SPC | 92 min |
| May 28, 1:16 PM EDT | Mesoscale Discussion | SPC | 119 min |
| May 28, 1:56 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 28, 5:46 PM EDT | Mesoscale Discussion | SPC | 59 min |
| May 28, 7:39 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jun 13, 12:18 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 14, 1:44 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 14, 3:01 PM EDT | Special Weather Statement | IWX | 29 min |
| Jun 18, 1:25 AM EDT | Special Weather Statement | IWX | 35 min |
| Jun 18, 1:39 AM EDT | Severe Thunderstorm Warning | IWX | 51 min |
| Jun 19, 1:44 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 19, 1:59 PM EDT | Special Weather Statement | IWX | 31 min |
| Jun 30, 1:37 AM EDT | Areal Flood Advisory | IWX | 53 min |
| Jun 30, 1:56 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 30, 3:35 PM EDT | Special Weather Statement | IWX | 55 min |
| Jun 30, 4:09 PM EDT | Special Weather Statement | IWX | 81 min |
| Jul 7, 8:51 AM EDT | Mesoscale Discussion | SPC | 114 min |
| Jul 7, 9:46 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 7, 10:53 AM EDT | Flash Flood Watch | IWX | 6 hr |
| Jul 7, 11:15 AM EDT | Severe Thunderstorm Warning | IWX | 45 min |
| Jul 7, 11:22 AM EDT | Mesoscale Discussion | SPC | 53 min |
| Jul 7, 1:54 PM EDT | Areal Flood Warning | IWX | 3 hr |
| Jul 10, 2:49 PM EDT | Flash Flood Watch | IWX | 11 hr |
| Jul 10, 3:48 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Jul 10, 4:58 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 10, 9:56 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 11, 9:35 AM EDT | Flash Flood Watch | IWX | 7 hr |
| Jul 12, 11:25 AM EDT | Flood Watch | IWX | 17 hr |
| Jul 20, 1:46 AM EDT | Special Weather Statement | IWX | 44 min |
| Jul 21, 6:04 AM EDT | Special Weather Statement | IWX | 41 min |
| Jul 22, 2:08 AM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 23, 2:03 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 27, 4:17 AM EDT | Special Weather Statement | IWX | 28 min |
| Aug 3, 7:45 PM EDT | Special Weather Statement | IWX | 30 min |
| Aug 17, 12:04 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Aug 21, 1:41 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Sep 4, 3:17 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Sep 4, 4:32 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 4, 6:50 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Sep 4, 9:14 PM EDT | Special Weather Statement | IWX | 31 min |
| Sep 4, 9:47 PM EDT | Special Weather Statement | IWX | 43 min |
| Sep 4, 10:26 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Oct 7, 5:40 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Oct 7, 8:40 PM EDT | Special Weather Statement | IWX | 50 min |
| Oct 10, 4:03 AM EDT | Dense Fog Advisory | IWX | 6 hr |
| Oct 25, 3:43 AM EDT | Frost Advisory | IWX | 29 hr |
| Nov 5, 3:23 AM EST | Flash Flood Watch | IWX | 13 hr |
| Nov 5, 12:08 PM EST | Tornado Watch | SPC | 7 hr |
| Nov 5, 12:35 PM EST | Severe Thunderstorm Warning | IWX | 40 min |
| Nov 5, 1:13 PM EST | Tornado Warning | IWX | 32 min |
| Nov 5, 1:37 PM EST | Tornado Warning | IWX | 23 min |
| Nov 5, 2:39 PM EST | Special Weather Statement | IWX | 36 min |
| Nov 5, 2:59 PM EST | Severe Thunderstorm Warning | IWX | 21 min |
| Nov 14, 2:25 AM EST | Dense Fog Advisory | IWX | 7 hr |
| Nov 18, 12:24 PM EST | Special Weather Statement | IWX | 66 min |
| Nov 18, 2:48 PM EST | Mesoscale Discussion | SPC | 57 min |
| Nov 18, 5:05 PM EST | Areal Flood Warning | IWX | 3 hr |
| Nov 18, 7:57 PM EST | Areal Flood Warning | IWX | 12 hr |
| Dec 4, 9:14 PM EST | Wind Advisory | IWX | 28 hr |
| Dec 23, 3:11 PM EST | Winter Weather Advisory | IWX | 31 hr |
| Dec 26, 3:50 AM EST | Wind Chill Advisory | IWX | 31 hr |
| Dec 29, 3:54 AM EST | Winter Weather Advisory | IWX | 23 hr |
| Dec 30, 4:11 AM EST | Wind Chill Advisory | IWX | 29 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 | 7 |
| Tornado Warning | 3 |
| Severe Thunderstorm Watch | 8 |
| Tornado Watch | 3 |
| Mesoscale Discussion | 34 |
| Special Weather Statement | 25 |
| Flooding | |
| Areal Flood Warning | 5 |
| River Flood Warning | 2 |
| Flash Flood Watch | 5 |
| Flood Watch | 2 |
| Areal Flood Advisory | 3 |
| Winter | |
| Winter Weather Advisory | 4 |
| Cold | |
| Frost Advisory | 2 |
| Wind Chill Advisory | 2 |
| Wind and dust | |
| Wind Advisory | 5 |
| Fog and smoke | |
| Dense Fog Advisory | 7 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20162018
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.