Alert archive / Michigan / Saint Joseph County
Weather alerts in Saint Joseph County, Michigan, 2017
91 weather alerts in 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Saint Joseph County and its neighbors
Each county as a circle sized by its count in 2017. Tap one for its archive.
- Alerts
- 91
- Warnings
- 16
- Watches
- 11
- Advisories
- 28
- Busiest month
- March20 alerts
- Busiest day
- March 1, 201711 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 1 tornado reports fell inside a warning.
Saint Joseph County, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 1 | 0% | |||
| Severe thunderstorm warnings | 11 | 6 | 45% | 6 | 83% | 11 min |
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Northern Indiana: tornado warnings | 26 | 6 | 77% | 17 | 71% | 10 min |
| NWS Northern Indiana: severe thunderstorm warnings | 126 | 61 | 52% | 263 | 56% | 17 min |
| NWS Northern Indiana: flash flood warnings | 9 | 3 | 67% | 12 | 75% | 103 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 3, 4:01 AM EST | Dense Fog Advisory | IWX | 8 hr |
| Jan 9, 2:25 PM EST | Winter Weather Advisory | IWX | 21 hr |
| Jan 10, 4:05 AM EST | Wind Advisory | IWX | 19 hr |
| Jan 12, 4:05 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 12, 5:20 AM EST | Freezing Rain Advisory | IWX | 8 hr |
| Jan 20, 9:16 PM EST | Dense Fog Advisory | IWX | 7 hr |
| Jan 21, 2:28 PM EST | Dense Fog Advisory | IWX | 38 hr |
| Jan 30, 3:10 PM EST | Winter Weather Advisory | IWX | 18 hr |
| Feb 7, 12:40 AM EST | Dense Fog Advisory | IWX | 6 hr |
| Feb 12, 10:45 AM EST | Wind Advisory | IWX | 9 hr |
| Feb 21, 9:34 PM EST | Dense Fog Advisory | IWX | 9 hr |
| Feb 24, 3:07 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Feb 24, 3:44 PM EST | Severe Thunderstorm Watch | SPC | 6 hr |
| Feb 24, 4:26 PM EST | Severe Thunderstorm Warning | IWX | 34 min |
| Feb 24, 4:59 PM EST | Severe Thunderstorm Warning | IWX | 20 min |
| Feb 24, 5:56 PM EST | Mesoscale Discussion | SPC | 94 min |
| Feb 28, 7:00 PM EST | Mesoscale Discussion | SPC | 90 min |
| Feb 28, 7:37 PM EST | Severe Thunderstorm Watch | SPC | 8 hr |
| Feb 28, 8:52 PM EST | Severe Thunderstorm Warning | IWX | 53 min |
| Feb 28, 9:40 PM EST | Severe Thunderstorm Warning | IWX | 50 min |
| Feb 28, 9:41 PM EST | Mesoscale Discussion | SPC | 94 min |
| Feb 28, 9:59 PM EST | Severe Thunderstorm Warning | IWX | 46 min |
| Feb 28, 10:17 PM EST | Flash Flood Warning | IWX | 6 hr |
| Mar 1, 12:52 AM EST | Mesoscale Discussion | SPC | 53 min |
| Mar 1, 1:30 AM EST | Severe Thunderstorm Warning | IWX | 45 min |
| Mar 1, 1:35 AM EST | Severe Thunderstorm Warning | IWX | 40 min |
| Mar 1, 1:44 AM EST | Mesoscale Discussion | SPC | 61 min |
| Mar 2, 11:06 AM EST | River Flood Watch | IWX | 7 days |
| Mar 7, 4:15 AM EST | Special Weather Statement | IWX | 60 min |
| Mar 7, 12:36 PM EST | High Wind Watch | IWX | 9 hr |
| Mar 7, 9:46 PM EST | High Wind Warning | IWX | 20 hr |
| Mar 12, 4:01 AM EDT | Winter Weather Advisory | IWX | 35 hr |
| Mar 13, 3:18 AM EDT | Winter Weather Advisory | IWX | 12 hr |
| Mar 16, 3:34 PM EDT | Winter Weather Advisory | IWX | 24 hr |
| Mar 17, 11:45 PM EDT | Dense Fog Advisory | IWX | 6 hr |
| Mar 21, 1:13 AM EDT | Dense Fog Advisory | IWX | 9 hr |
| Apr 5, 11:02 AM EDT | River Flood Warning | IWX | 8 days |
| Apr 5, 3:25 PM EDT | Wind Advisory | IWX | 30 hr |
| Apr 10, 2:48 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Apr 10, 4:25 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 10, 7:22 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Apr 11, 4:39 AM EDT | Dense Fog Advisory | IWX | 3 hr |
| Apr 19, 2:50 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Apr 20, 1:36 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Apr 20, 2:08 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 20, 3:55 PM EDT | Special Weather Statement | IWX | 35 min |
| Apr 20, 4:06 PM EDT | Severe Thunderstorm Warning | IWX | 39 min |
| Apr 20, 4:31 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Apr 29, 11:23 PM EDT | Special Weather Statement | IWX | 37 min |
| May 1, 6:50 AM EDT | Special Weather Statement | IWX | 25 min |
| May 3, 3:53 AM EDT | Flood Watch | IWX | 47 hr |
| May 6, 2:58 PM EDT | Freeze Watch | IWX | 13 hr |
| May 7, 3:40 AM EDT | Freeze Warning | IWX | 28 hr |
| May 18, 3:34 AM EDT | Wind Advisory | IWX | 16 hr |
| May 20, 11:25 PM EDT | Special Weather Statement | IWX | 65 min |
| May 28, 1:16 PM EDT | Mesoscale Discussion | SPC | 119 min |
| May 28, 1:56 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 28, 4:09 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Jun 13, 2:59 PM EDT | Severe Thunderstorm Warning | IWX | 31 min |
| Jun 14, 4:02 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jun 14, 5:59 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Jun 16, 4:32 AM EDT | Special Weather Statement | IWX | 43 min |
| Jun 16, 5:24 AM EDT | Special Weather Statement | IWX | 66 min |
| Jun 17, 8:58 PM EDT | Special Weather Statement | IWX | 32 min |
| Jun 17, 9:36 PM EDT | Special Weather Statement | IWX | 24 min |
| Jun 19, 6:50 PM EDT | Special Weather Statement | IWX | 25 min |
| Jul 7, 3:59 AM EDT | Severe Thunderstorm Warning | IWX | 46 min |
| Jul 7, 4:46 AM EDT | Severe Thunderstorm Warning | IWX | 44 min |
| Jul 12, 9:33 AM EDT | Mesoscale Discussion | SPC | 117 min |
| Jul 12, 11:25 AM EDT | Flood Watch | IWX | 17 hr |
| Jul 13, 2:47 AM EDT | Special Weather Statement | IWX | 28 min |
| Jul 13, 3:19 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 23, 2:03 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 4, 12:03 AM EDT | Special Weather Statement | IWX | 27 min |
| Aug 4, 12:35 AM EDT | Special Weather Statement | IWX | 25 min |
| Aug 29, 7:33 AM EDT | Dense Fog Advisory | IWX | 2 hr |
| Sep 4, 3:17 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Sep 14, 1:59 AM EDT | Dense Fog Advisory | IWX | 8 hr |
| Sep 20, 3:33 AM EDT | Dense Fog Advisory | IWX | 6 hr |
| Oct 7, 5:40 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Oct 7, 7:47 PM EDT | Special Weather Statement | IWX | 28 min |
| Oct 25, 3:43 AM EDT | Frost Advisory | IWX | 29 hr |
| Nov 4, 2:55 PM EDT | Special Weather Statement | IWX | 35 min |
| Nov 5, 1:09 AM EDT | Dense Fog Advisory | IWX | 11 hr |
| Nov 14, 2:25 AM EST | Dense Fog Advisory | IWX | 7 hr |
| Dec 4, 9:14 PM EST | Wind Advisory | IWX | 28 hr |
| Dec 11, 3:41 AM EST | Winter Storm Watch | IWX | 9 hr |
| Dec 11, 12:53 PM EST | Winter Storm Warning | IWX | 33 hr |
| Dec 23, 3:11 PM EST | Winter Weather Advisory | IWX | 31 hr |
| Dec 25, 2:54 PM EST | Winter Weather Advisory | IWX | 16 hr |
| Dec 29, 3:54 AM EST | Winter Weather Advisory | IWX | 23 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 |
| Severe Thunderstorm Watch | 5 |
| Mesoscale Discussion | 21 |
| Special Weather Statement | 15 |
| Flooding | |
| Flash Flood Warning | 1 |
| River Flood Warning | 1 |
| Flood Watch | 2 |
| River Flood Watch | 1 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Freezing Rain Advisory | 1 |
| Winter Weather Advisory | 8 |
| Cold | |
| Freeze Warning | 1 |
| Freeze Watch | 1 |
| Frost Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 1 |
| Wind Advisory | 5 |
| Fog and smoke | |
| Dense Fog Advisory | 13 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20162018
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.