Alert archive / Michigan / Leelanau County
Weather alerts in Leelanau County, Michigan, 2017
67 weather alerts in 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Leelanau County and its neighbors
Each county as a circle sized by its count in 2017. Tap one for its archive.
- Alerts
- 67
- Warnings
- 16
- Watches
- 5
- Advisories
- 29
- Busiest month
- June16 alerts
- Busiest day
- June 11, 20174 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Leelanau County, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 8 | 5 | 38% | 4 | 75% | 36 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Gaylord, MI: tornado warnings | 1 | 0 | 100% | 4 | 0% | |
| NWS Gaylord, MI: severe thunderstorm warnings | 36 | 19 | 47% | 60 | 68% | 23 min |
| NWS Gaylord, MI: flash flood warnings | 2 | 1 | 50% | 4 | 100% | 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, 4:38 AM EST | Winter Storm Warning | APX | 66 hr |
| Jan 3, 4:38 AM EST | Winter Weather Advisory | APX | 3 days |
| Jan 8, 3:45 PM EST | Winter Weather Advisory | APX | 17 hr |
| Jan 9, 1:46 PM EST | Winter Weather Advisory | APX | 31 hr |
| Jan 10, 4:16 AM EST | High Wind Watch | APX | 12 hr |
| Jan 10, 4:08 PM EST | Wind Advisory | APX | 12 hr |
| Jan 11, 4:10 AM EST | Winter Weather Advisory | APX | 20 hr |
| Jan 16, 3:52 AM EST | Winter Weather Advisory | APX | 30 hr |
| Jan 20, 4:30 PM EST | Dense Fog Advisory | APX | 14 hr |
| Jan 21, 3:19 PM EST | Dense Fog Advisory | APX | 39 hr |
| Jan 29, 4:15 AM EST | Winter Weather Advisory | APX | 27 hr |
| Feb 6, 4:25 PM EST | Winter Weather Advisory | APX | 32 hr |
| Feb 11, 3:45 PM EST | Winter Weather Advisory | APX | 32 hr |
| Feb 14, 10:29 AM EST | Winter Weather Advisory | APX | 17 hr |
| Feb 23, 2:32 PM EST | Winter Weather Advisory | APX | 34 hr |
| Feb 25, 3:29 AM EST | Winter Weather Advisory | APX | 16 hr |
| Feb 28, 3:07 PM EST | Winter Weather Advisory | APX | 32 hr |
| Mar 1, 3:19 AM EST | Winter Storm Warning | APX | 20 hr |
| Mar 7, 3:58 AM EST | Wind Advisory | APX | 39 hr |
| Mar 7, 3:13 PM EST | Wind Advisory | APX | 28 hr |
| Apr 5, 3:37 PM EDT | Winter Weather Advisory | APX | 20 hr |
| Apr 10, 11:28 AM EDT | Severe Thunderstorm Warning | APX | 21 min |
| Apr 15, 4:44 PM EDT | Special Weather Statement | APX | 2 hr |
| May 6, 12:24 PM EDT | Freeze Warning | APX | 20 hr |
| May 7, 8:05 AM EDT | Freeze Warning | APX | 24 hr |
| May 8, 9:33 AM EDT | Freeze Warning | APX | 22 hr |
| May 9, 2:16 PM EDT | Frost Advisory | APX | 17 hr |
| Jun 3, 6:58 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jun 10, 3:49 AM EDT | Wind Advisory | APX | 16 hr |
| Jun 10, 4:21 AM EDT | Beach Hazards Statement | APX | 18 hr |
| Jun 10, 10:06 PM EDT | Beach Hazards Statement | APX | 13 hr |
| Jun 11, 2:30 PM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jun 11, 3:46 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Jun 11, 3:51 PM EDT | Severe Thunderstorm Warning | APX | 33 min |
| Jun 12, 3:55 AM EDT | Severe Thunderstorm Warning | APX | 35 min |
| Jun 12, 9:09 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 12, 10:34 PM EDT | Severe Thunderstorm Warning | APX | 56 min |
| Jun 12, 11:20 PM EDT | Severe Thunderstorm Warning | APX | 35 min |
| Jun 14, 5:59 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Jun 14, 7:01 PM EDT | Severe Thunderstorm Warning | APX | 74 min |
| Jun 14, 7:40 PM EDT | Severe Thunderstorm Warning | APX | 44 min |
| Jun 16, 3:25 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 28, 5:41 AM EDT | Beach Hazards Statement | APX | 29 hr |
| Jul 6, 10:43 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jul 18, 8:32 PM EDT | Special Weather Statement | APX | 118 min |
| Aug 4, 3:16 AM EDT | Beach Hazards Statement | APX | 37 hr |
| Aug 11, 10:54 PM EDT | Beach Hazards Statement | APX | 17 hr |
| Aug 17, 4:13 AM EDT | Beach Hazards Statement | APX | 43 hr |
| Aug 22, 4:02 AM EDT | Beach Hazards Statement | APX | 40 hr |
| Sep 3, 10:33 PM EDT | Beach Hazards Statement | APX | 17 hr |
| Sep 4, 11:31 AM EDT | Severe Thunderstorm Warning | APX | 29 min |
| Sep 27, 3:51 AM EDT | Beach Hazards Statement | APX | 19 hr |
| Sep 29, 4:07 AM EDT | Beach Hazards Statement | APX | 20 hr |
| Oct 14, 4:21 PM EDT | Wind Advisory | APX | 23 hr |
| Oct 23, 4:16 AM EDT | Flood Watch | APX | 32 hr |
| Oct 23, 3:23 PM EDT | Wind Advisory | APX | 36 hr |
| Nov 8, 2:26 AM EST | Winter Weather Advisory | APX | 56 hr |
| Nov 19, 4:04 AM EST | Winter Weather Advisory | APX | 18 hr |
| Dec 4, 3:20 PM EST | Wind Advisory | APX | 28 hr |
| Dec 5, 3:02 PM EST | Winter Weather Advisory | APX | 49 hr |
| Dec 7, 8:01 PM EST | Winter Weather Advisory | APX | 39 hr |
| Dec 11, 4:17 AM EST | Winter Storm Warning | APX | 35 hr |
| Dec 14, 2:24 PM EST | Winter Weather Advisory | APX | 37 hr |
| Dec 23, 3:30 PM EST | Winter Storm Watch | APX | 22 hr |
| Dec 24, 10:45 AM EST | Winter Storm Warning | APX | 4 days |
| Dec 28, 3:32 AM EST | Winter Weather Advisory | APX | 56 hr |
| Dec 28, 9:01 PM EST | Winter Storm Warning | APX | 67 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 | 8 |
| Severe Thunderstorm Watch | 2 |
| Mesoscale Discussion | 5 |
| Special Weather Statement | 2 |
| Flooding | |
| Flood Watch | 1 |
| Winter | |
| Winter Storm Warning | 5 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 19 |
| Cold | |
| Freeze Warning | 3 |
| Frost Advisory | 1 |
| Wind and dust | |
| High Wind Watch | 1 |
| Wind Advisory | 7 |
| Fog and smoke | |
| Dense Fog Advisory | 2 |
| Coast and beach | |
| Beach Hazards Statement | 10 |
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.