Alert archive / Indiana / Cass County
Weather alerts in Cass County, Indiana, 2019
86 weather alerts in 2019, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Cass County and its neighbors
Each county as a circle sized by its count in 2019. Tap one for its archive.
- Alerts
- 86
- Warnings
- 21
- Watches
- 13
- Advisories
- 22
- Busiest month
- May29 alerts
- Busiest day
- May 27, 20197 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Cass County, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 8 | 5 | 38% | 6 | 67% | 41 min |
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Northern Indiana: tornado warnings | 22 | 5 | 77% | 15 | 53% | 21 min |
| NWS Northern Indiana: severe thunderstorm warnings | 164 | 74 | 55% | 293 | 70% | 23 min |
| NWS Northern Indiana: flash flood warnings | 21 | 3 | 86% | 5 | 60% | 40 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, 3:59 AM EST | Wind Advisory | IWX | 18 hr |
| Jan 11, 3:22 AM EST | Winter Weather Advisory | IWX | 48 hr |
| Jan 17, 2:31 PM EST | Winter Storm Watch | IWX | 25 hr |
| Jan 18, 3:01 PM EST | Winter Storm Warning | IWX | 37 hr |
| Jan 19, 11:09 AM EST | Mesoscale Discussion | SPC | 3 hr |
| Jan 20, 7:33 AM EST | Wind Chill Advisory | IWX | 28 hr |
| Jan 24, 3:30 AM EST | Wind Chill Advisory | IWX | 33 hr |
| Jan 28, 3:50 AM EST | Wind Chill Watch | IWX | 11 hr |
| Jan 28, 2:44 PM EST | Wind Chill Warning | IWX | 70 hr |
| Jan 31, 3:59 AM EST | Winter Weather Advisory | IWX | 28 hr |
| Feb 2, 8:39 PM EST | Dense Fog Advisory | IWX | 6 hr |
| Feb 6, 11:20 AM EST | River Flood Warning | IWX | 4 days |
| Feb 7, 1:23 PM EST | Wind Advisory | IWX | 15 hr |
| Feb 11, 3:21 AM EST | Winter Weather Advisory | IWX | 32 hr |
| Feb 12, 4:03 AM EST | Wind Advisory | IWX | 26 hr |
| Feb 19, 3:55 AM EST | Winter Weather Advisory | IWX | 35 hr |
| Feb 22, 11:37 AM EST | High Wind Watch | IWX | 27 hr |
| Feb 23, 2:11 PM EST | High Wind Warning | IWX | 35 hr |
| Feb 24, 12:17 AM EST | Special Weather Statement | IWX | 118 min |
| Mar 9, 3:33 PM EST | Wind Advisory | IWX | 23 hr |
| Mar 13, 3:37 PM EDT | Wind Advisory | IWX | 31 hr |
| Apr 7, 9:53 PM EDT | Special Weather Statement | IWX | 52 min |
| Apr 26, 7:34 AM EDT | River Flood Warning | IWX | 47 hr |
| Apr 26, 7:34 AM EDT | River Flood Warning | IWX | 45 hr |
| Apr 30, 9:01 PM EDT | River Flood Warning | IWX | 20 hr |
| May 1, 2:52 AM EDT | River Flood Warning | IWX | 3 days |
| May 16, 1:51 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 19, 4:26 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 19, 4:53 PM EDT | Severe Thunderstorm Warning | IWX | 52 min |
| May 19, 7:00 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 23, 3:01 AM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| May 23, 3:15 AM EDT | Severe Thunderstorm Warning | IWX | 75 min |
| May 23, 4:09 AM EDT | Severe Thunderstorm Warning | IWX | 66 min |
| May 23, 4:50 AM EDT | Mesoscale Discussion | SPC | 55 min |
| May 26, 2:21 AM EDT | Special Weather Statement | IWX | 54 min |
| May 26, 4:06 AM EDT | Mesoscale Discussion | SPC | 84 min |
| May 26, 4:23 AM EDT | Special Weather Statement | IWX | 37 min |
| May 26, 4:34 AM EDT | Severe Thunderstorm Warning | IWX | 26 min |
| May 27, 1:50 PM EDT | Mesoscale Discussion | SPC | 85 min |
| May 27, 2:22 PM EDT | Tornado Watch | SPC | 9 hr |
| May 27, 4:57 PM EDT | Mesoscale Discussion | SPC | 93 min |
| May 27, 6:30 PM EDT | Mesoscale Discussion | SPC | 90 min |
| May 27, 7:18 PM EDT | Areal Flood Advisory | IWX | 113 min |
| May 27, 7:18 PM EDT | Severe Thunderstorm Warning | IWX | 42 min |
| May 27, 7:44 PM EDT | Severe Thunderstorm Warning | IWX | 46 min |
| May 27, 8:06 PM EDT | Flash Flood Warning | IWX | 109 min |
| May 28, 12:16 PM EDT | Mesoscale Discussion | SPC | 119 min |
| May 28, 1:22 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 28, 3:24 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 30, 4:28 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 30, 11:48 PM EDT | Areal Flood Advisory | IWX | 117 min |
| May 31, 1:34 AM EDT | Areal Flood Advisory | IWX | 4 hr |
| May 31, 5:23 AM EDT | Areal Flood Warning | IWX | 6 hr |
| Jun 5, 1:00 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 15, 5:45 AM EDT | Flash Flood Watch | IWX | 28 hr |
| Jun 16, 1:54 AM EDT | Special Weather Statement | IWX | 96 min |
| Jun 16, 2:14 AM EDT | Mesoscale Discussion | SPC | 61 min |
| Jun 19, 3:35 AM EDT | Flash Flood Watch | IWX | 37 hr |
| Jun 19, 12:34 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Jul 2, 2:50 AM EDT | Heat Advisory | IWX | 17 hr |
| Jul 2, 3:31 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Jul 5, 7:06 PM EDT | Special Weather Statement | IWX | 39 min |
| Jul 6, 2:36 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 6, 4:52 PM EDT | Areal Flood Advisory | IWX | 113 min |
| Jul 17, 2:46 AM EDT | Excessive Heat Watch | IWX | 24 hr |
| Jul 17, 3:34 PM EDT | Excessive Heat Warning | IWX | 3 days |
| Jul 21, 1:56 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 17, 5:28 AM EDT | Severe Thunderstorm Warning | IWX | 32 min |
| Aug 18, 6:44 AM EDT | Mesoscale Discussion | SPC | 91 min |
| Aug 18, 3:24 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 20, 10:04 AM EDT | Mesoscale Discussion | SPC | 86 min |
| Aug 20, 1:12 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 20, 2:27 PM EDT | Special Weather Statement | IWX | 48 min |
| Sep 3, 2:28 PM EDT | Special Weather Statement | IWX | 32 min |
| Sep 3, 4:54 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 11, 4:04 PM EDT | Special Weather Statement | IWX | 26 min |
| Sep 12, 4:58 PM EDT | Severe Thunderstorm Warning | IWX | 36 min |
| Oct 13, 3:22 PM EDT | Frost Advisory | IWX | 18 hr |
| Oct 17, 3:43 AM EDT | Frost Advisory | IWX | 29 hr |
| Oct 31, 4:11 AM EDT | Wind Advisory | IWX | 18 hr |
| Nov 10, 3:00 PM EST | Winter Weather Advisory | IWX | 44 hr |
| Nov 25, 2:32 PM EST | High Wind Watch | IWX | 23 hr |
| Nov 26, 1:37 PM EST | High Wind Warning | IWX | 31 hr |
| Nov 27, 3:27 AM EST | Special Weather Statement | IWX | 48 min |
| Dec 24, 3:02 AM EST | Freezing Fog Advisory | IWX | 9 hr |
| Dec 30, 10:25 AM EST | River Flood Warning | IWX | 10 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 archive20182020
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.