Alert archive / Indiana / Franklin County
Weather alerts in Franklin County, Indiana, 2018
116 weather alerts in 2018, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Franklin County and its neighbors
Each county as a circle sized by its count in 2018. Tap one for its archive.
- Alerts
- 116
- Warnings
- 22
- Watches
- 13
- Advisories
- 37
- Busiest month
- April23 alerts
- Busiest day
- April 3, 201817 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Franklin County, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 5 | 4 | 20% | 1 | 0% | |
| Flash flood warnings | 2 | 2 | 0% | 2 | 100% | 36 min |
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 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 7, 7:16 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 8, 1:00 AM EST | Mesoscale Discussion | SPC | 6 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, 3:04 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 12, 8:51 AM EST | Mesoscale Discussion | SPC | 5 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 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 6, 10:42 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 10, 3:34 PM EST | Winter Weather Advisory | ILN | 24 hr |
| Feb 15, 6:51 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Feb 15, 9:57 PM EST | Areal Flood Advisory | ILN | 3 hr |
| Feb 15, 10:00 PM EST | Special Weather Statement | ILN | 30 min |
| Feb 21, 4:22 AM EST | Special Weather Statement | ILN | 38 min |
| Feb 21, 2:49 PM EST | Flood Watch | ILN | 4 days |
| Feb 24, 5:23 PM EST | River Flood Warning | ILN | 28 hr |
| Feb 24, 9:45 PM EST | Areal Flood Advisory | ILN | 7 hr |
| Feb 25, 12:59 AM EST | River Flood Advisory | ILN | 36 hr |
| Feb 25, 4:29 AM EST | Areal Flood Advisory | ILN | 6 hr |
| Mar 13, 12:13 PM EDT | Special Weather Statement | ILN | 32 min |
| Mar 13, 4:31 PM EDT | Special Weather Statement | ILN | 29 min |
| Mar 16, 4:03 AM EDT | Winter Weather Advisory | ILN | 30 hr |
| Mar 19, 3:37 PM EDT | Winter Weather Advisory | ILN | 46 hr |
| Mar 20, 1:11 PM EDT | Winter Storm Warning | ILN | 24 hr |
| Mar 22, 4:01 AM EDT | Winter Storm Watch | ILN | 35 hr |
| Mar 23, 2:36 PM EDT | Winter Storm Warning | ILN | 31 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, 6:28 AM EDT | Areal Flood Advisory | ILN | 3 hr |
| Apr 3, 7:33 AM EDT | Flash Flood Warning | ILN | 3 hr |
| Apr 3, 7:41 AM EDT | River Flood Warning | ILN | 29 hr |
| Apr 3, 7:44 AM EDT | River Flood Advisory | ILN | 29 hr |
| Apr 3, 10:25 AM EDT | Areal Flood Warning | ILN | 4 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, 2:51 PM EDT | River Flood Warning | ILN | 12 hr |
| Apr 3, 3:05 PM EDT | Special Weather Statement | ILN | 25 min |
| Apr 3, 3:19 PM EDT | Severe Thunderstorm Warning | ILN | 41 min |
| Apr 3, 3:41 PM EDT | Flash Flood Warning | ILN | 3 hr |
| Apr 3, 3:41 PM EDT | Special Weather Statement | ILN | 34 min |
| Apr 3, 4:08 PM EDT | Special Weather Statement | ILN | 22 min |
| Apr 3, 4:18 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Apr 3, 6:31 PM EDT | Areal Flood Warning | ILN | 12 hr |
| Apr 3, 7:30 PM EDT | Tornado Watch | SPC | 5 hr |
| Apr 11, 8:00 PM EDT | Wind Advisory | ILN | 22 hr |
| Apr 16, 1:44 AM EDT | Freeze Warning | ILN | 32 hr |
| Apr 17, 3:34 PM EDT | Freeze Warning | ILN | 17 hr |
| Apr 19, 3:31 AM EDT | Freeze Warning | ILN | 29 hr |
| Apr 28, 3:38 AM EDT | Freeze Warning | ILN | 29 hr |
| Apr 29, 9:38 AM EDT | Frost Advisory | ILN | 23 hr |
| May 4, 4:30 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 10, 1:43 AM EDT | Special Weather Statement | ILN | 32 min |
| May 12, 4:20 PM EDT | Mesoscale Discussion | SPC | 115 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, 7:18 PM EDT | Special Weather Statement | ILN | 42 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 31, 2:05 PM EDT | Mesoscale Discussion | SPC | 85 min |
| May 31, 2:30 PM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| May 31, 2:42 PM EDT | Severe Thunderstorm Warning | ILN | 33 min |
| May 31, 3:13 PM EDT | Severe Thunderstorm Warning | ILN | 47 min |
| Jun 1, 5:00 PM EDT | Special Weather Statement | ILN | 30 min |
| Jun 1, 5:06 PM EDT | Special Weather Statement | ILN | 24 min |
| Jun 13, 4:14 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 13, 4:25 PM EDT | Special Weather Statement | ILN | 35 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 26, 12:38 PM EDT | Special Weather Statement | ILN | 37 min |
| Jul 2, 7:48 PM EDT | Areal Flood Advisory | ILN | 117 min |
| Jul 3, 4:05 AM EDT | Heat Advisory | ILN | 62 hr |
| Jul 20, 1:19 PM EDT | Mesoscale Discussion | SPC | 56 min |
| Jul 20, 1:37 PM EDT | Tornado Watch | SPC | 7 hr |
| Jul 20, 3:43 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Jul 20, 6:37 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Jul 26, 7:37 PM EDT | Special Weather Statement | ILN | 23 min |
| Jul 26, 7:46 PM EDT | Severe Thunderstorm Warning | ILN | 29 min |
| Jul 31, 4:01 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 7, 3:00 AM EDT | Special Weather Statement | ILN | 45 min |
| Aug 10, 5:48 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Aug 25, 6:15 PM EDT | Special Weather Statement | ILN | 45 min |
| Aug 25, 6:46 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Aug 25, 7:27 PM EDT | Severe Thunderstorm Warning | ILN | 33 min |
| Aug 29, 5:40 PM EDT | Special Weather Statement | ILN | 20 min |
| Sep 5, 6:38 PM EDT | Special Weather Statement | ILN | 22 min |
| Sep 7, 3:38 AM EDT | Flash Flood Watch | ILN | 68 hr |
| Sep 8, 11:54 AM EDT | River Flood Warning | ILN | 23 hr |
| Sep 9, 4:50 AM EDT | River Flood Advisory | ILN | 10 hr |
| Sep 15, 6:12 AM EDT | Dense Fog Advisory | ILN | 4 hr |
| Sep 28, 1:33 AM EDT | Dense Fog Advisory | ILN | 8 hr |
| 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 27, 2:37 PM EDT | Wind Advisory | ILN | 28 hr |
| Oct 30, 3:43 AM EDT | Flood Watch | ILN | 67 hr |
| Nov 14, 3:55 AM EST | Winter Weather Advisory | ILN | 31 hr |
| Nov 14, 7:03 PM EST | Mesoscale Discussion | SPC | 6 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 25, 6:06 AM EST | Dense Fog Advisory | ILN | 6 hr |
| Nov 25, 9:48 PM EST | Wind Advisory | ILN | 12 hr |
| Nov 30, 3:38 AM EST | Dense Fog Advisory | ILN | 8 hr |
| Dec 1, 7:29 PM EST | Special Weather Statement | ILN | 31 min |
| 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.
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.