Alert archive / Indiana / Harrison County
Weather alerts in Harrison County, Indiana, 2010
146 weather alerts in 2010, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Harrison County and its neighbors
Each county as a circle sized by its count in 2010. Tap one for its archive.
- Alerts
- 146
- Warnings
- 34
- Watches
- 18
- Advisories
- 36
- Busiest month
- May28 alerts
- Busiest day
- October 26, 20108 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 Harrison County in 2010 had a tornado report inside them.
Harrison County, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 3 | 1 | 67% | 0 | ||
| Severe thunderstorm warnings | 14 | 10 | 29% | 3 | 100% | 14 min |
| Flash flood warnings | 1 | 1 | 0% | 0 |
Each office's whole area, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Louisville, KY: tornado warnings | 39 | 6 | 85% | 12 | 58% | 4 min |
| NWS Louisville, KY: severe thunderstorm warnings | 273 | 120 | 56% | 290 | 70% | 16 min |
| NWS Louisville, KY: flash flood warnings | 49 | 17 | 65% | 56 | 71% | 131 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 5, 2:41 PM EST | Winter Storm Watch | LMK | 25 hr |
| Jan 6, 4:10 PM EST | Winter Storm Warning | LMK | 19 hr |
| Jan 6, 4:10 PM EST | Winter Weather Advisory | LMK | 27 hr |
| Jan 18, 9:37 PM EST | Dense Fog Advisory | LMK | 10 hr |
| Jan 19, 3:29 AM EST | Freezing Fog Advisory | LMK | 7 hr |
| Jan 19, 9:56 AM EST | Dense Fog Advisory | LMK | 3 hr |
| Jan 26, 5:07 AM EST | Winter Weather Advisory | LMK | 7 hr |
| Jan 28, 4:38 PM EST | Winter Weather Advisory | LMK | 42 hr |
| Feb 5, 10:50 AM EST | Winter Weather Advisory | LMK | 24 hr |
| Feb 7, 4:47 AM EST | Winter Storm Watch | LMK | 24 hr |
| Feb 8, 4:55 AM EST | Winter Weather Advisory | LMK | 32 hr |
| Feb 8, 11:27 AM EST | Winter Storm Warning | LMK | 26 hr |
| Feb 9, 9:02 PM EST | Winter Weather Advisory | LMK | 19 hr |
| Feb 13, 3:28 PM EST | Winter Storm Watch | LMK | 12 hr |
| Feb 14, 3:26 AM EST | Winter Storm Warning | LMK | 40 hr |
| Feb 15, 9:37 PM EST | Winter Weather Advisory | LMK | 11 hr |
| Feb 24, 10:26 PM EST | Winter Weather Advisory | LMK | 11 hr |
| Mar 23, 3:46 AM EDT | Dense Fog Advisory | LMK | 6 hr |
| Apr 3, 9:52 AM EDT | Special Weather Statement | LMK | 38 min |
| Apr 5, 1:28 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Apr 7, 10:19 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Apr 7, 10:33 PM EDT | Special Weather Statement | LMK | 27 min |
| Apr 7, 11:16 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Apr 16, 5:48 PM EDT | Special Weather Statement | LMK | 27 min |
| Apr 16, 6:12 PM EDT | Special Weather Statement | LMK | 33 min |
| Apr 17, 4:12 AM EDT | Frost Advisory | LMK | 28 hr |
| Apr 24, 12:40 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Apr 24, 2:17 PM EDT | Tornado Watch | SPC | 8 hr |
| Apr 24, 6:48 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Apr 24, 7:56 PM EDT | Areal Flood Advisory | LMK | 3 hr |
| Apr 29, 3:29 PM EDT | Flash Flood Watch | LMK | 3 days |
| May 1, 2:11 AM EDT | Tornado Watch | SPC | 6 hr |
| May 1, 3:54 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 1, 4:55 AM EDT | Severe Thunderstorm Warning | LMK | 35 min |
| May 1, 11:14 PM EDT | Tornado Watch | SPC | 7 hr |
| May 2, 1:15 AM EDT | Special Weather Statement | LMK | 45 min |
| May 2, 3:09 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 2, 8:27 AM EDT | Flash Flood Warning | LMK | 3 hr |
| May 2, 11:32 AM EDT | Areal Flood Warning | LMK | 6 hr |
| May 2, 3:59 PM EDT | River Flood Advisory | LMK | 11 hr |
| May 2, 5:29 PM EDT | Areal Flood Warning | LMK | 12 hr |
| May 3, 3:15 AM EDT | River Flood Warning | LMK | 7 hr |
| May 3, 7:04 AM EDT | Dense Fog Advisory | LMK | 3 hr |
| May 7, 4:02 AM EDT | Wind Advisory | LMK | 15 hr |
| May 7, 6:07 PM EDT | Mesoscale Discussion | SPC | 113 min |
| May 7, 6:53 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 7, 10:40 PM EDT | Mesoscale Discussion | SPC | 95 min |
| May 11, 4:15 AM EDT | Special Weather Statement | LMK | 30 min |
| May 12, 9:33 AM EDT | Special Weather Statement | LMK | 27 min |
| May 12, 9:42 AM EDT | Areal Flood Advisory | LMK | 3 hr |
| May 12, 10:23 AM EDT | Severe Thunderstorm Warning | LMK | 22 min |
| May 17, 4:57 PM EDT | Special Weather Statement | LMK | 33 min |
| May 21, 11:26 AM EDT | Mesoscale Discussion | SPC | 64 min |
| May 21, 5:29 PM EDT | Mesoscale Discussion | SPC | 31 min |
| May 21, 6:43 PM EDT | Tornado Warning | LMK | 32 min |
| May 21, 7:41 PM EDT | Mesoscale Discussion | SPC | 64 min |
| May 27, 4:19 PM EDT | Special Weather Statement | LMK | 41 min |
| May 27, 5:02 PM EDT | Special Weather Statement | LMK | 28 min |
| May 27, 5:34 PM EDT | Special Weather Statement | LMK | 26 min |
| Jun 3, 5:40 AM EDT | Special Weather Statement | LMK | 35 min |
| Jun 11, 1:38 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 11, 3:31 PM EDT | Flash Flood Watch | LMK | 16 hr |
| Jun 12, 5:47 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Jun 14, 2:45 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Jun 14, 9:45 PM EDT | Special Weather Statement | LMK | 45 min |
| Jun 15, 12:55 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jun 15, 5:47 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 15, 6:58 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Jun 15, 7:05 PM EDT | Severe Thunderstorm Warning | LMK | 40 min |
| Jun 15, 7:46 PM EDT | Severe Thunderstorm Warning | LMK | 44 min |
| Jun 15, 8:06 PM EDT | Severe Thunderstorm Warning | LMK | 39 min |
| Jun 15, 8:41 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Jun 15, 8:42 PM EDT | Severe Thunderstorm Warning | LMK | 48 min |
| Jun 18, 3:56 PM EDT | Heat Advisory | LMK | 23 hr |
| Jun 18, 3:56 PM EDT | Heat Advisory | LMK | 50 hr |
| Jun 19, 3:33 AM EDT | Mesoscale Discussion | SPC | 57 min |
| Jun 19, 5:57 AM EDT | Special Weather Statement | LMK | 48 min |
| Jun 28, 12:38 AM EDT | Special Weather Statement | LMK | 52 min |
| Jun 28, 1:32 AM EDT | Special Weather Statement | LMK | 58 min |
| Jul 13, 5:28 AM EDT | Special Weather Statement | LMK | 32 min |
| Jul 13, 5:56 AM EDT | Special Weather Statement | LMK | 34 min |
| Jul 14, 3:15 PM EDT | Heat Advisory | LMK | 29 hr |
| Jul 17, 12:56 AM EDT | Special Weather Statement | LMK | 34 min |
| Jul 18, 3:55 PM EDT | Special Weather Statement | LMK | 35 min |
| Jul 18, 4:31 PM EDT | Special Weather Statement | LMK | 29 min |
| Jul 19, 3:36 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 19, 6:02 PM EDT | Special Weather Statement | LMK | 43 min |
| Jul 19, 6:08 PM EDT | Severe Thunderstorm Warning | LMK | 37 min |
| Jul 19, 6:32 PM EDT | Severe Thunderstorm Warning | LMK | 28 min |
| Jul 19, 6:46 PM EDT | Severe Thunderstorm Warning | LMK | 44 min |
| Jul 22, 3:59 PM EDT | Heat Advisory | LMK | 27 hr |
| Jul 22, 3:59 PM EDT | Heat Advisory | LMK | 51 hr |
| Jul 27, 4:43 PM EDT | Flash Flood Watch | LMK | 2 hr |
| Aug 2, 3:37 PM EDT | Heat Advisory | LMK | 53 hr |
| Aug 4, 4:16 AM EDT | Excessive Heat Warning | LMK | 17 hr |
| Aug 5, 7:20 AM EDT | Mesoscale Discussion | SPC | 85 min |
| Aug 5, 8:51 AM EDT | Mesoscale Discussion | SPC | 114 min |
| Aug 5, 8:57 AM EDT | Special Weather Statement | LMK | 33 min |
| Aug 9, 3:17 PM EDT | Heat Advisory | LMK | 29 hr |
| Aug 10, 11:25 AM EDT | Excessive Heat Warning | LMK | 9 hr |
| Aug 11, 3:41 AM EDT | Heat Advisory | LMK | 5 days |
| Aug 11, 12:14 PM EDT | Excessive Heat Warning | LMK | 3 hr |
| Aug 12, 1:51 PM EDT | Mesoscale Discussion | SPC | 54 min |
| Aug 12, 8:27 PM EDT | Special Weather Statement | LMK | 33 min |
| Aug 14, 2:43 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 14, 3:46 PM EDT | Severe Thunderstorm Warning | LMK | 29 min |
| Aug 14, 4:21 PM EDT | Special Weather Statement | LMK | 39 min |
| Aug 15, 11:06 PM EDT | Special Weather Statement | LMK | 54 min |
| Aug 19, 7:35 AM EDT | Dense Fog Advisory | LMK | 2 hr |
| Sep 7, 3:58 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Sep 22, 2:27 PM EDT | Red Flag Warning | LMK | 6 hr |
| Sep 22, 3:23 PM EDT | Fire Weather Watch | LMK | 12 hr |
| Sep 23, 3:39 AM EDT | Red Flag Warning | LMK | 16 hr |
| Oct 4, 2:57 PM EDT | Frost Advisory | LMK | 17 hr |
| Oct 13, 6:16 PM EDT | Special Weather Statement | LMK | 29 min |
| Oct 21, 3:41 AM EDT | Red Flag Warning | LMK | 14 hr |
| Oct 21, 3:58 PM EDT | Frost Advisory | LMK | 17 hr |
| Oct 23, 3:29 AM EDT | Red Flag Warning | LMK | 16 hr |
| Oct 25, 2:53 PM EDT | Wind Advisory | LMK | 24 hr |
| Oct 26, 7:00 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 26, 8:55 AM EDT | Tornado Watch | SPC | 7 hr |
| Oct 26, 10:08 AM EDT | Severe Thunderstorm Warning | LMK | 52 min |
| Oct 26, 10:49 AM EDT | Severe Thunderstorm Warning | LMK | 26 min |
| Oct 26, 10:52 AM EDT | Severe Thunderstorm Warning | LMK | 38 min |
| Oct 26, 10:56 AM EDT | Tornado Warning | LMK | 19 min |
| Oct 26, 11:15 AM EDT | Severe Thunderstorm Warning | LMK | 45 min |
| Oct 26, 11:22 AM EDT | Tornado Warning | LMK | 38 min |
| Oct 28, 2:58 PM EDT | Freeze Warning | LMK | 12 hr |
| Oct 29, 3:32 PM EDT | Fire Weather Watch | LMK | 12 hr |
| Oct 30, 3:45 AM EDT | Red Flag Warning | LMK | 15 hr |
| Nov 18, 3:49 PM EST | Dense Fog Advisory | LMK | 16 hr |
| Nov 20, 5:00 AM EST | Dense Fog Advisory | LMK | 3 hr |
| Nov 24, 3:49 PM EST | Flood Watch | LMK | 33 hr |
| Nov 25, 3:27 PM EST | Special Weather Statement | LMK | 48 min |
| Nov 25, 4:16 PM EST | Special Weather Statement | LMK | 44 min |
| Dec 3, 3:02 PM EST | Winter Weather Advisory | LMK | 28 hr |
| Dec 11, 3:01 PM EST | Winter Weather Advisory | LMK | 46 hr |
| Dec 12, 4:30 PM EST | Special Weather Statement | LMK | 45 min |
| Dec 12, 6:18 PM EST | Special Weather Statement | LMK | 42 min |
| Dec 12, 7:02 PM EST | Special Weather Statement | LMK | 43 min |
| Dec 12, 8:04 PM EST | Special Weather Statement | LMK | 41 min |
| Dec 14, 4:23 AM EST | Winter Storm Watch | LMK | 12 hr |
| Dec 14, 4:13 PM EST | Winter Storm Warning | LMK | 45 hr |
| Dec 14, 4:13 PM EST | Winter Weather Advisory | LMK | 18 hr |
| Dec 15, 7:18 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 24, 2:16 AM EST | Winter Weather Advisory | LMK | 27 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 archive20092011
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.