Alert archive / Indiana / Carroll County
Weather alerts in Carroll County, Indiana, 2018
78 weather alerts in 2018, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Carroll County and its neighbors
Each county as a circle sized by its count in 2018. Tap one for its archive.
- Alerts
- 78
- Warnings
- 21
- Watches
- 5
- Advisories
- 28
- Busiest month
- January12 alerts
- Busiest day
- August 7, 20184 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 Carroll County in 2018 had a tornado report inside them.
Carroll County, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 5 | 2 | 60% | 1 | 100% | 0 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Indianapolis, IN: tornado warnings | 13 | 2 | 85% | 8 | 38% | 12 min |
| NWS Indianapolis, IN: severe thunderstorm warnings | 78 | 37 | 53% | 140 | 57% | 16 min |
| NWS Indianapolis, IN: flash flood warnings | 22 | 16 | 27% | 30 | 97% | 182 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 1, 3:38 AM EST | Wind Chill Warning | IND | 33 hr |
| Jan 2, 3:13 PM EST | Wind Chill Advisory | IND | 16 hr |
| Jan 3, 3:59 PM EST | Wind Chill Advisory | IND | 19 hr |
| Jan 4, 3:38 PM EST | Wind Chill Advisory | IND | 19 hr |
| Jan 5, 3:59 PM EST | Wind Chill Advisory | IND | 19 hr |
| Jan 7, 3:42 AM EST | Winter Weather Advisory | IND | 33 hr |
| Jan 7, 7:16 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 11, 2:53 PM EST | Winter Weather Advisory | IND | 31 hr |
| Jan 12, 3:04 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 14, 2:53 PM EST | Winter Weather Advisory | IND | 28 hr |
| Jan 15, 3:06 PM EST | Wind Chill Advisory | IND | 21 hr |
| Jan 21, 6:34 AM EST | Dense Fog Advisory | IND | 9 hr |
| Feb 5, 5:57 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 10, 3:30 PM EST | Winter Weather Advisory | IND | 22 hr |
| Feb 18, 10:36 PM EST | River Flood Warning | IND | 12 days |
| Feb 19, 9:57 AM EST | River Flood Warning | IND | 8 days |
| Feb 19, 3:29 PM EST | Flood Watch | IND | 40 hr |
| Feb 19, 11:02 PM EST | River Flood Warning | IND | 24 hr |
| Feb 20, 11:40 AM EST | River Flood Warning | IWX | 15 days |
| Feb 20, 8:37 PM EST | River Flood Warning | IWX | 6 days |
| Feb 21, 12:40 AM EST | Areal Flood Warning | IND | 42 hr |
| Feb 21, 5:05 PM EST | Winter Weather Advisory | IND | 10 hr |
| Mar 1, 9:52 AM EST | River Flood Watch | IWX | 36 hr |
| Mar 16, 3:51 PM EDT | Winter Weather Advisory | IND | 15 hr |
| Mar 17, 4:59 AM EDT | Mesoscale Discussion | SPC | 4 hr |
| Mar 22, 3:56 AM EDT | Winter Storm Watch | IND | 35 hr |
| Apr 3, 7:11 PM EDT | Severe Thunderstorm Warning | IND | 34 min |
| Apr 28, 3:04 AM EDT | Freeze Warning | IND | 29 hr |
| May 1, 3:34 AM EDT | Red Flag Warning | IND | 16 hr |
| May 13, 7:23 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 31, 3:00 PM EDT | Mesoscale Discussion | SPC | 90 min |
| May 31, 7:25 PM EDT | Special Weather Statement | IND | 35 min |
| May 31, 8:26 PM EDT | Special Weather Statement | IND | 34 min |
| May 31, 8:58 PM EDT | Special Weather Statement | IND | 47 min |
| Jun 7, 5:28 PM EDT | Special Weather Statement | IND | 17 min |
| Jun 10, 11:04 AM EDT | Mesoscale Discussion | SPC | 116 min |
| Jun 18, 3:31 AM EDT | Heat Advisory | IND | 16 hr |
| Jun 19, 1:37 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jun 21, 2:51 PM EDT | Areal Flood Warning | IND | 3 hr |
| Jun 22, 12:40 PM EDT | Areal Flood Warning | IND | 3 hr |
| Jun 28, 3:19 PM EDT | Heat Advisory | IND | 3 days |
| Jul 1, 7:51 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Jul 3, 3:49 AM EDT | Heat Advisory | IND | 61 hr |
| Jul 20, 1:43 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Aug 1, 6:42 AM EDT | Dense Fog Advisory | IND | 2 hr |
| Aug 6, 8:14 PM EDT | Special Weather Statement | IND | 46 min |
| Aug 6, 9:18 PM EDT | Severe Thunderstorm Warning | IND | 14 min |
| Aug 6, 9:49 PM EDT | Tornado Warning | IND | 26 min |
| Aug 6, 10:10 PM EDT | Severe Thunderstorm Warning | IND | 35 min |
| Aug 10, 5:48 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Aug 20, 1:57 PM EDT | Severe Thunderstorm Warning | IND | 33 min |
| Aug 20, 2:27 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 6, 3:32 PM EDT | Flash Flood Watch | IND | 67 hr |
| Sep 7, 10:16 AM EDT | Areal Flood Advisory | IND | 3 hr |
| Sep 8, 12:32 PM EDT | River Flood Warning | IND | 28 hr |
| Sep 8, 12:32 PM EDT | River Flood Warning | IND | 39 hr |
| Sep 11, 3:34 AM EDT | Dense Fog Advisory | IND | 5 hr |
| Sep 25, 6:21 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Oct 6, 1:39 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 6, 2:31 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Oct 6, 4:22 PM EDT | Severe Thunderstorm Warning | IND | 38 min |
| Oct 7, 6:37 AM EDT | Dense Fog Advisory | IND | 2 hr |
| Oct 11, 3:23 PM EDT | Frost Advisory | IND | 18 hr |
| Oct 15, 3:03 AM EDT | Frost Advisory | IND | 30 hr |
| Oct 15, 2:56 PM EDT | Freeze Warning | IND | 18 hr |
| Oct 17, 2:53 AM EDT | Freeze Warning | IND | 30 hr |
| Oct 20, 10:49 AM EDT | Wind Advisory | IND | 11 hr |
| Oct 27, 3:09 PM EDT | Wind Advisory | IND | 28 hr |
| Nov 14, 2:50 AM EST | Winter Weather Advisory | IND | 40 hr |
| Nov 15, 1:11 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Nov 25, 9:51 PM EST | Wind Advisory | IND | 12 hr |
| Nov 30, 3:38 AM EST | Dense Fog Advisory | IND | 6 hr |
| Nov 30, 9:25 PM EST | Dense Fog Advisory | IND | 6 hr |
| Dec 6, 10:42 AM EST | Special Weather Statement | IND | 18 min |
| Dec 6, 2:11 PM EST | Special Weather Statement | IND | 3 hr |
| Dec 6, 2:36 PM EST | Special Weather Statement | IND | 5 hr |
| Dec 6, 7:55 PM EST | Special Weather Statement | IND | 10 hr |
| Dec 27, 3:00 PM EST | Wind Advisory | IND | 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 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 1 |
| Mesoscale Discussion | 15 |
| Special Weather Statement | 9 |
| Flooding | |
| Areal Flood Warning | 3 |
| River Flood Warning | 7 |
| Flash Flood Watch | 1 |
| Flood Watch | 1 |
| River Flood Watch | 1 |
| Areal Flood Advisory | 1 |
| Winter | |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 7 |
| Heat | |
| Heat Advisory | 3 |
| Cold | |
| Freeze Warning | 3 |
| Wind Chill Warning | 1 |
| Frost Advisory | 2 |
| Wind Chill Advisory | 5 |
| Wind and dust | |
| Wind Advisory | 4 |
| Fire | |
| Red Flag Warning | 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.