Alert archive / Indiana / Hamilton County
Weather alerts in Hamilton County, Indiana, 2024
108 weather alerts in 2024, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Hamilton County and its neighbors
Each county as a circle sized by its count in 2024. Tap one for its archive.
- Alerts
- 108
- Warnings
- 30
- Watches
- 14
- Advisories
- 35
- Busiest month
- July21 alerts
- Busiest day
- March 14, 202411 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 2 tornado reports fell inside a warning.
Hamilton County, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 2 | 0% | |||
| Severe thunderstorm warnings | 15 | 8 | 47% | 8 | 88% | 18 min |
| Flash flood warnings | 3 | 3 | 0% | 1 | 100% | 97 min |
Each office's whole area, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Indianapolis, IN: tornado warnings | 28 | 6 | 79% | 13 | 46% | 14 min |
| NWS Indianapolis, IN: severe thunderstorm warnings | 151 | 89 | 41% | 204 | 79% | 21 min |
| NWS Indianapolis, IN: flash flood warnings | 10 | 6 | 40% | 6 | 100% | 60 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 8, 4:01 AM EST | Winter Weather Advisory | IND | 24 hr |
| Jan 11, 11:44 AM EST | High Wind Watch | IND | 15 hr |
| Jan 12, 2:58 AM EST | Wind Advisory | IND | 33 hr |
| Jan 13, 2:21 AM EST | Wind Chill Advisory | IND | 58 hr |
| Jan 15, 1:57 PM EST | Wind Chill Advisory | IND | 22 hr |
| Jan 16, 3:06 AM EST | Wind Chill Advisory | IND | 30 hr |
| Jan 18, 3:29 AM EST | Winter Weather Advisory | IND | 34 hr |
| Jan 18, 3:14 PM EST | Wind Chill Advisory | IND | 43 hr |
| Jan 21, 3:22 PM EST | Winter Weather Advisory | IND | 43 hr |
| Jan 23, 12:46 PM EST | Dense Fog Advisory | IND | 21 hr |
| Jan 24, 4:05 PM EST | Dense Fog Advisory | IND | 20 hr |
| Jan 26, 2:57 PM EST | Dense Fog Advisory | IND | 22 hr |
| Feb 16, 2:58 AM EST | Winter Weather Advisory | IND | 22 hr |
| Feb 16, 12:26 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Mar 14, 10:49 AM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Mar 14, 11:48 AM EDT | Severe Thunderstorm Warning | IND | 27 min |
| Mar 14, 12:06 PM EDT | Severe Thunderstorm Warning | IND | 24 min |
| Mar 14, 4:36 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Mar 14, 5:13 PM EDT | Tornado Watch | SPC | 7 hr |
| Mar 14, 6:28 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Mar 14, 7:03 PM EDT | Severe Thunderstorm Warning | IND | 27 min |
| Mar 14, 7:14 PM EDT | Severe Thunderstorm Warning | IND | 31 min |
| Mar 14, 7:28 PM EDT | Severe Thunderstorm Warning | IND | 32 min |
| Mar 14, 7:40 PM EDT | Severe Thunderstorm Warning | IND | 35 min |
| Mar 14, 7:51 PM EDT | Severe Thunderstorm Warning | IND | 39 min |
| Mar 14, 8:02 PM EDT | Severe Thunderstorm Warning | IND | 43 min |
| Mar 14, 8:18 PM EDT | Areal Flood Advisory | IND | 3 hr |
| Mar 14, 8:21 PM EDT | Severe Thunderstorm Warning | IND | 24 min |
| Mar 24, 3:07 PM EDT | Wind Advisory | IND | 51 hr |
| Apr 1, 10:57 AM EDT | Flood Watch | IND | 33 hr |
| Apr 1, 8:38 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 2, 7:34 AM EDT | Areal Flood Advisory | IND | 13 hr |
| Apr 2, 11:23 AM EDT | River Flood Warning | IND | 49 hr |
| Apr 2, 11:23 AM EDT | River Flood Warning | IND | 55 hr |
| Apr 2, 11:58 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 4, 3:19 PM EDT | Freeze Watch | IND | 12 hr |
| Apr 5, 3:01 AM EDT | Freeze Warning | IND | 31 hr |
| Apr 10, 10:53 PM EDT | Areal Flood Advisory | IND | 3 hr |
| Apr 10, 11:58 PM EDT | Areal Flood Warning | IND | 17 hr |
| Apr 11, 8:31 AM EDT | River Flood Warning | IND | 59 hr |
| Apr 11, 9:16 AM EDT | Areal Flood Advisory | IND | 14 hr |
| Apr 11, 11:36 AM EDT | River Flood Warning | IND | 69 hr |
| Apr 11, 10:15 PM EDT | River Flood Warning | IND | 32 hr |
| Apr 12, 10:03 AM EDT | Areal Flood Advisory | IND | 8 hr |
| Apr 21, 3:15 AM EDT | Frost Advisory | IND | 30 hr |
| Apr 24, 2:42 PM EDT | Frost Advisory | IND | 18 hr |
| May 7, 2:28 PM EDT | Tornado Watch | SPC | 12 hr |
| May 15, 2:57 AM EDT | Areal Flood Advisory | IND | 8 hr |
| May 18, 2:14 AM EDT | Dense Fog Advisory | IND | 7 hr |
| May 24, 4:19 PM EDT | Mesoscale Discussion | SPC | 116 min |
| May 24, 5:56 PM EDT | Severe Thunderstorm Warning | IND | 34 min |
| May 24, 6:24 PM EDT | Special Weather Statement | IND | 36 min |
| May 24, 7:15 PM EDT | Special Weather Statement | IND | 45 min |
| May 26, 12:20 PM EDT | Mesoscale Discussion | SPC | 85 min |
| May 26, 12:45 PM EDT | Severe Thunderstorm Warning | IND | 30 min |
| May 26, 1:12 PM EDT | Special Weather Statement | IND | 48 min |
| Jun 4, 3:04 PM EDT | Special Weather Statement | IND | 26 min |
| Jun 5, 11:38 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 19, 8:35 PM EDT | Special Weather Statement | IND | 25 min |
| Jun 29, 12:42 PM EDT | Mesoscale Discussion | SPC | 63 min |
| Jul 10, 1:28 AM EDT | Wind Advisory | IND | 11 hr |
| Jul 11, 5:48 PM EDT | Areal Flood Advisory | IND | 2 hr |
| Jul 14, 10:08 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 14, 12:34 PM EDT | Special Weather Statement | IND | 41 min |
| Jul 14, 12:46 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 14, 1:07 PM EDT | Severe Thunderstorm Warning | IND | 38 min |
| Jul 15, 12:59 AM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 15, 8:44 AM EDT | Heat Advisory | IND | 11 hr |
| Jul 15, 2:13 PM EDT | Flood Watch | IND | 28 hr |
| Jul 15, 10:37 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Jul 15, 10:59 PM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jul 16, 12:16 AM EDT | Severe Thunderstorm Warning | IND | 29 min |
| Jul 16, 12:21 AM EDT | Special Weather Statement | IND | 39 min |
| Jul 16, 12:58 AM EDT | Special Weather Statement | IND | 32 min |
| Jul 16, 1:06 AM EDT | Severe Thunderstorm Warning | IND | 24 min |
| Jul 16, 1:38 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 24, 12:21 PM EDT | Special Weather Statement | IND | 54 min |
| Jul 24, 2:06 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Jul 29, 4:58 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 29, 8:48 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 29, 10:10 PM EDT | Severe Thunderstorm Warning | IND | 38 min |
| Aug 1, 3:19 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Aug 1, 4:52 PM EDT | Special Weather Statement | IND | 53 min |
| Aug 1, 5:03 PM EDT | Flash Flood Warning | IND | 3 hr |
| Aug 1, 5:31 PM EDT | Flash Flood Warning | IND | 3 hr |
| Aug 1, 5:43 PM EDT | Areal Flood Warning | IND | 26 min |
| Aug 1, 6:09 PM EDT | Flash Flood Warning | IND | 2 hr |
| Aug 1, 8:12 PM EDT | Areal Flood Warning | IND | 12 hr |
| Aug 25, 2:45 PM EDT | Excessive Heat Watch | IND | 24 hr |
| Aug 26, 2:44 PM EDT | Heat Advisory | IND | 30 hr |
| Aug 27, 2:39 PM EDT | Heat Advisory | IND | 28 hr |
| Aug 30, 10:24 PM EDT | Special Weather Statement | IND | 36 min |
| Aug 30, 10:27 PM EDT | Special Weather Statement | IND | 33 min |
| Aug 30, 10:37 PM EDT | Areal Flood Advisory | IND | 3 hr |
| Sep 21, 1:15 AM EDT | Dense Fog Advisory | IND | 8 hr |
| Sep 24, 2:10 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 26, 1:57 PM EDT | Wind Advisory | IND | 32 hr |
| Sep 27, 3:34 AM EDT | High Wind Warning | IND | 18 hr |
| Oct 16, 1:07 PM EDT | Freeze Warning | IND | 20 hr |
| Oct 28, 3:46 PM EDT | Fire Weather Watch | IND | 11 hr |
| Oct 29, 2:56 AM EDT | Red Flag Warning | IND | 17 hr |
| Nov 21, 3:43 AM EST | Winter Weather Advisory | IND | 18 hr |
| Dec 4, 3:51 AM EST | Wind Advisory | IND | 27 hr |
| Dec 4, 10:07 PM EST | Special Weather Statement | IND | 38 min |
| Dec 10, 7:12 AM EST | Dense Fog Advisory | IND | 3 hr |
| Dec 11, 5:27 PM EST | Special Weather Statement | IND | 48 min |
| Dec 15, 7:50 PM EST | Dense Fog Advisory | IND | 5 hr |
| Dec 29, 2:16 AM EST | Wind Advisory | IND | 18 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 | 15 |
| Severe Thunderstorm Watch | 6 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 15 |
| Special Weather Statement | 14 |
| Flooding | |
| Areal Flood Warning | 3 |
| Flash Flood Warning | 3 |
| River Flood Warning | 5 |
| Flood Watch | 2 |
| Areal Flood Advisory | 8 |
| Winter | |
| Winter Weather Advisory | 5 |
| Heat | |
| Excessive Heat Watch | 1 |
| Heat Advisory | 3 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 1 |
| Frost Advisory | 2 |
| Wind Chill Advisory | 4 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 1 |
| Wind Advisory | 6 |
| Fire | |
| Red Flag Warning | 1 |
| Fire Weather Watch | 1 |
| 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 archive20232025
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.