Alert archive / Indiana / Johnson County
Weather alerts in Johnson County, Indiana, 2020
87 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Johnson County and its neighbors
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 87
- Warnings
- 38
- Watches
- 7
- Advisories
- 21
- Busiest month
- April16 alerts
- Busiest day
- April 9, 20206 alerts
Over time
By month
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, 3:35 PM EST | Flood Watch | IND | 72 hr |
| Jan 10, 7:03 AM EST | Areal Flood Advisory | IND | 3 hr |
| Jan 10, 8:32 AM EST | River Flood Warning | IND | 4 days |
| Jan 10, 9:59 AM EST | Areal Flood Advisory | IND | 17 hr |
| Jan 10, 10:03 AM EST | Areal Flood Advisory | IND | 17 hr |
| Jan 10, 10:55 AM EST | River Flood Warning | IND | 21 days |
| Jan 11, 8:39 AM EST | Areal Flood Warning | IND | 21 hr |
| Jan 11, 2:19 PM EST | River Flood Warning | IND | 21 days |
| Jan 14, 10:30 PM EST | Dense Fog Advisory | IND | 14 hr |
| Jan 16, 3:08 PM EST | Winter Weather Advisory | IND | 40 hr |
| Feb 5, 3:23 AM EST | Winter Weather Advisory | IND | 30 hr |
| Feb 10, 9:15 AM EST | River Flood Warning | IND | 30 hr |
| Feb 10, 10:52 AM EST | River Flood Warning | IND | 67 hr |
| Feb 11, 9:12 AM EST | River Flood Warning | IND | 8 hr |
| Mar 18, 11:02 PM EDT | River Flood Warning | IND | 4 days |
| Mar 19, 8:50 PM EDT | River Flood Warning | IND | 39 hr |
| Mar 20, 12:19 AM EDT | Areal Flood Warning | IND | 6 hr |
| Mar 20, 2:08 AM EDT | Special Weather Statement | IND | 52 min |
| Mar 20, 2:14 AM EDT | Flash Flood Warning | IND | 5 hr |
| Mar 20, 2:41 AM EDT | River Flood Warning | IND | 40 hr |
| Mar 28, 1:42 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Mar 28, 3:32 PM EDT | Wind Advisory | IND | 28 hr |
| Mar 28, 7:44 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Mar 28, 9:55 PM EDT | Severe Thunderstorm Warning | IND | 50 min |
| Mar 28, 10:02 PM EDT | Severe Thunderstorm Warning | IND | 30 min |
| Mar 28, 10:23 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Mar 29, 1:52 PM EDT | River Flood Warning | IND | 32 hr |
| Apr 8, 6:52 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 8, 7:24 PM EDT | Tornado Watch | SPC | 5 hr |
| Apr 8, 8:27 PM EDT | Severe Thunderstorm Warning | IND | 48 min |
| Apr 8, 8:46 PM EDT | Tornado Warning | IND | 29 min |
| Apr 8, 8:46 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Apr 8, 8:47 PM EDT | Tornado Warning | IND | 28 min |
| Apr 8, 9:06 PM EDT | Severe Thunderstorm Warning | IND | 54 min |
| Apr 9, 1:26 PM EDT | Freeze Warning | IND | 20 hr |
| Apr 10, 3:33 AM EDT | Frost Advisory | IND | 27 hr |
| Apr 11, 3:15 PM EDT | High Wind Watch | IND | 24 hr |
| Apr 12, 3:57 AM EDT | Wind Advisory | IND | 36 hr |
| Apr 13, 2:51 PM EDT | Freeze Warning | IND | 18 hr |
| Apr 14, 3:29 AM EDT | Freeze Warning | IND | 30 hr |
| Apr 15, 3:57 AM EDT | Freeze Warning | IND | 29 hr |
| Apr 17, 2:59 AM EDT | Freeze Warning | IND | 31 hr |
| Apr 21, 3:22 PM EDT | Frost Advisory | IND | 17 hr |
| May 3, 12:10 AM EDT | Mesoscale Discussion | SPC | 95 min |
| May 7, 3:39 AM EDT | Freeze Watch | IND | 24 hr |
| May 8, 3:38 AM EDT | Freeze Warning | IND | 29 hr |
| May 11, 3:39 AM EDT | Frost Advisory | IND | 28 hr |
| May 18, 7:33 PM EDT | River Flood Warning | IND | 21 days |
| May 18, 11:10 PM EDT | River Flood Warning | IND | 4 days |
| May 23, 2:06 PM EDT | Severe Thunderstorm Warning | IND | 24 min |
| May 23, 4:14 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Jun 3, 6:24 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 4, 11:11 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 9, 4:54 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Jun 10, 11:22 AM EDT | Mesoscale Discussion | SPC | 83 min |
| Jun 10, 11:54 AM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 21, 1:00 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 27, 8:48 AM EDT | Mesoscale Discussion | SPC | 87 min |
| Jun 30, 1:52 AM EDT | Areal Flood Advisory | IND | 3 hr |
| Jul 7, 4:10 PM EDT | Special Weather Statement | IND | 35 min |
| Jul 11, 5:06 PM EDT | Severe Thunderstorm Warning | IND | 24 min |
| Jul 11, 5:29 PM EDT | Severe Thunderstorm Warning | IND | 31 min |
| Jul 11, 6:24 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jul 12, 12:53 AM EDT | Severe Thunderstorm Warning | IND | 37 min |
| Jul 12, 1:30 AM EDT | Special Weather Statement | IND | 45 min |
| Jul 18, 3:06 PM EDT | Heat Advisory | IND | 29 hr |
| Jul 19, 3:15 PM EDT | Special Weather Statement | IND | 45 min |
| Jul 19, 4:12 PM EDT | Severe Thunderstorm Warning | IND | 33 min |
| Jul 21, 12:19 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Jul 27, 1:14 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Aug 10, 8:34 AM EDT | Areal Flood Advisory | IND | 3 hr |
| Aug 10, 4:26 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 10, 6:17 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Aug 10, 7:15 PM EDT | Severe Thunderstorm Warning | IND | 60 min |
| Aug 10, 7:50 PM EDT | Areal Flood Advisory | IND | 115 min |
| Aug 10, 7:55 PM EDT | Severe Thunderstorm Warning | IND | 50 min |
| Aug 10, 8:16 PM EDT | Flash Flood Warning | IND | 59 min |
| Aug 10, 8:29 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Sep 1, 5:34 AM EDT | Dense Fog Advisory | IND | 4 hr |
| Oct 4, 3:42 AM EDT | Frost Advisory | IND | 29 hr |
| Oct 15, 3:35 AM EDT | Freeze Warning | IND | 30 hr |
| Oct 16, 4:02 AM EDT | Frost Advisory | IND | 29 hr |
| Oct 17, 3:53 AM EDT | Red Flag Warning | IND | 16 hr |
| Oct 22, 2:19 AM EDT | Dense Fog Advisory | IND | 7 hr |
| Nov 14, 4:16 AM EST | Wind Advisory | IND | 39 hr |
| Nov 18, 3:17 PM EST | Wind Advisory | IND | 26 hr |
| Nov 19, 9:22 AM EST | Red Flag Warning | IND | 10 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 | 11 |
| Tornado Warning | 2 |
| Severe Thunderstorm Watch | 3 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 17 |
| Special Weather Statement | 4 |
| Flooding | |
| Areal Flood Warning | 2 |
| Flash Flood Warning | 2 |
| River Flood Warning | 12 |
| Flood Watch | 1 |
| Areal Flood Advisory | 6 |
| Winter | |
| Winter Weather Advisory | 2 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 7 |
| Freeze Watch | 1 |
| Frost Advisory | 5 |
| Wind and dust | |
| High Wind Watch | 1 |
| Wind Advisory | 4 |
| Fire | |
| Red Flag Warning | 2 |
| 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. Rebuilt daily.