Alert archive / Indiana / Benton County
Weather alerts in Benton County, Indiana, 2020
74 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Benton County and its neighbors
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 74
- Warnings
- 13
- Watches
- 10
- Advisories
- 25
- Busiest month
- June16 alerts
- Busiest day
- June 27, 20209 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Benton County, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 7 | 4 | 43% | 1 | 100% | 16 min |
| Flash flood warnings | 1 | 1 | 0% | 0 |
Each office's whole area, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Chicago, IL: tornado warnings | 25 | 5 | 80% | 35 | 37% | 13 min |
| NWS Chicago, IL: severe thunderstorm warnings | 112 | 77 | 31% | 443 | 83% | 33 min |
| NWS Chicago, IL: flash flood warnings | 19 | 11 | 42% | 64 | 83% | 114 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 9, 4:20 AM EST | Wind Advisory | LOT | 15 hr |
| Jan 9, 4:39 AM EST | Flood Watch | LOT | 55 hr |
| Jan 14, 9:49 PM EST | Dense Fog Advisory | LOT | 14 hr |
| Jan 16, 3:44 PM EST | Winter Weather Advisory | LOT | 51 hr |
| Jan 18, 1:01 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 5, 3:23 AM EST | Winter Weather Advisory | LOT | 33 hr |
| Feb 8, 2:38 PM EST | Winter Weather Advisory | LOT | 26 hr |
| Feb 11, 3:38 PM EST | Winter Weather Advisory | LOT | 52 hr |
| Feb 23, 3:11 PM EST | Winter Storm Watch | LOT | 48 hr |
| Feb 25, 4:34 AM EST | Winter Weather Advisory | LOT | 38 hr |
| Mar 14, 12:01 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Mar 25, 5:39 AM EDT | Dense Fog Advisory | LOT | 6 hr |
| Mar 28, 11:18 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 28, 3:43 PM EDT | Wind Advisory | LOT | 29 hr |
| Apr 8, 12:20 AM EDT | Mesoscale Discussion | SPC | 85 min |
| Apr 8, 7:40 PM EDT | Special Weather Statement | LOT | 20 min |
| Apr 9, 4:18 AM EDT | Wind Advisory | LOT | 16 hr |
| Apr 12, 4:57 AM EDT | Wind Advisory | LOT | 36 hr |
| Apr 16, 4:28 AM EDT | Winter Weather Advisory | LOT | 32 hr |
| May 7, 4:33 AM EDT | Freeze Watch | LOT | 24 hr |
| May 8, 4:56 AM EDT | Freeze Warning | LOT | 27 hr |
| May 11, 3:45 PM EDT | Frost Advisory | LOT | 17 hr |
| May 16, 3:47 PM EDT | Flash Flood Watch | LOT | 32 hr |
| May 17, 2:44 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 17, 9:05 PM EDT | Areal Flood Advisory | LOT | 3 hr |
| May 23, 1:33 PM EDT | Tornado Watch | SPC | 8 hr |
| May 23, 3:51 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Jun 9, 3:33 AM EDT | Wind Advisory | LOT | 21 hr |
| Jun 9, 7:20 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Jun 22, 1:48 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 22, 2:36 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 22, 4:38 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Jun 26, 8:53 AM EDT | Special Weather Statement | LOT | 37 min |
| Jun 26, 10:40 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jun 27, 12:46 AM EDT | Special Weather Statement | LOT | 59 min |
| Jun 27, 1:04 AM EDT | Severe Thunderstorm Warning | LOT | 41 min |
| Jun 27, 2:24 AM EDT | Special Weather Statement | LOT | 36 min |
| Jun 27, 4:44 AM EDT | Severe Thunderstorm Warning | LOT | 28 min |
| Jun 27, 2:53 PM EDT | Areal Flood Advisory | LOT | 112 min |
| Jun 27, 3:22 PM EDT | Special Weather Statement | LOT | 38 min |
| Jun 27, 4:32 PM EDT | Flash Flood Warning | LOT | 4 hr |
| Jun 27, 7:10 PM EDT | Areal Flood Advisory | LOT | 2 hr |
| Jun 27, 8:30 PM EDT | Areal Flood Warning | LOT | 12 hr |
| Jul 11, 2:44 PM EDT | Severe Thunderstorm Warning | LOT | 61 min |
| Jul 11, 11:08 PM EDT | Severe Thunderstorm Warning | LOT | 67 min |
| Jul 11, 11:42 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jul 17, 4:36 AM EDT | Heat Advisory | LOT | 40 hr |
| Jul 19, 11:12 AM EDT | Mesoscale Discussion | SPC | 93 min |
| Jul 19, 11:32 AM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 19, 12:42 PM EDT | Special Weather Statement | LOT | 33 min |
| Jul 19, 1:19 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Jul 21, 12:19 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Jul 21, 1:07 PM EDT | Special Weather Statement | LOT | 38 min |
| Jul 21, 1:17 PM EDT | Severe Thunderstorm Warning | LOT | 43 min |
| Jul 27, 1:03 PM EDT | Special Weather Statement | LOT | 42 min |
| Jul 27, 1:14 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Aug 10, 12:26 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 10, 4:31 PM EDT | Severe Thunderstorm Warning | LOT | 89 min |
| Aug 10, 4:36 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Aug 28, 1:32 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Aug 29, 1:35 AM EDT | Severe Thunderstorm Warning | LOT | 33 min |
| Oct 4, 4:46 AM EDT | Frost Advisory | LOT | 28 hr |
| Oct 14, 4:44 AM EDT | Red Flag Warning | LOT | 15 hr |
| Oct 14, 8:41 PM EDT | Freeze Watch | LOT | 7 hr |
| Oct 15, 3:35 AM EDT | Freeze Warning | LOT | 30 hr |
| Oct 16, 4:52 AM EDT | Fire Weather Watch | LOT | 11 hr |
| Oct 16, 3:40 PM EDT | Wind Advisory | LOT | 28 hr |
| Oct 16, 3:52 PM EDT | Red Flag Warning | LOT | 29 hr |
| Oct 22, 4:30 AM EDT | Dense Fog Advisory | LOT | 9 hr |
| Oct 31, 11:44 AM EDT | Wind Advisory | LOT | 30 hr |
| Nov 10, 8:07 PM EST | Special Weather Statement | LOT | 53 min |
| Nov 14, 4:04 AM EST | Wind Advisory | LOT | 41 hr |
| Nov 18, 3:15 PM EST | Wind Advisory | LOT | 26 hr |
| Dec 23, 3:32 AM EST | Wind Advisory | LOT | 25 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 |
| Severe Thunderstorm Watch | 3 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 17 |
| Special Weather Statement | 9 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 1 |
| Flash Flood Watch | 1 |
| Flood Watch | 1 |
| Areal Flood Advisory | 3 |
| Winter | |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 6 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 2 |
| Frost Advisory | 2 |
| Wind and dust | |
| Wind Advisory | 10 |
| Fire | |
| Red Flag Warning | 2 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20192021
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.