Alert archive / Michigan / Houghton County
Weather alerts in Houghton County, Michigan, 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.
Houghton County and its neighbors
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 87
- Warnings
- 20
- Watches
- 6
- Advisories
- 48
- Busiest month
- August18 alerts
- Busiest day
- August 10, 202010 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Houghton County, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 13 | 3 | 77% | 10 | 70% | 33 min |
| Flash flood warnings | 1 | 0 | 100% | 2 | 0% |
Each office's whole area, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Marquette, MI: tornado warnings | 2 | 0 | 100% | 3 | 0% | |
| NWS Marquette, MI: severe thunderstorm warnings | 76 | 22 | 71% | 85 | 67% | 24 min |
| NWS Marquette, MI: flash flood warnings | 3 | 1 | 67% | 7 | 43% | 79 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 5, 4:30 AM EST | Winter Weather Advisory | MQT | 23 hr |
| Jan 6, 3:21 PM EST | Winter Weather Advisory | MQT | 49 hr |
| Jan 8, 4:09 PM EST | Winter Weather Advisory | MQT | 33 hr |
| Jan 15, 3:06 PM EST | Winter Weather Advisory | MQT | 25 hr |
| Jan 17, 4:45 AM EST | Winter Weather Advisory | MQT | 56 hr |
| Jan 17, 3:56 PM EST | Winter Storm Warning | MQT | 37 hr |
| Feb 12, 3:56 AM EST | Winter Weather Advisory | MQT | 37 hr |
| Mar 1, 4:26 AM EST | Wind Advisory | MQT | 25 hr |
| Mar 4, 3:34 PM EST | Winter Weather Advisory | MQT | 36 hr |
| Mar 5, 4:21 AM EST | Winter Storm Warning | MQT | 24 hr |
| Mar 5, 4:41 AM EST | Lakeshore Flood Advisory | MQT | 26 hr |
| Mar 12, 3:52 PM EDT | Wind Advisory | MQT | 32 hr |
| Mar 19, 4:57 AM EDT | Winter Weather Advisory | MQT | 33 hr |
| Mar 19, 5:02 AM EDT | Lakeshore Flood Advisory | MQT | 33 hr |
| Mar 31, 8:57 AM EDT | River Flood Advisory | MQT | 49 hr |
| Apr 8, 12:17 PM EDT | River Flood Advisory | MQT | 4 days |
| Apr 9, 11:28 AM EDT | River Flood Advisory | MQT | 3 days |
| Apr 10, 4:12 PM EDT | Winter Storm Watch | MQT | 24 hr |
| Apr 11, 3:46 PM EDT | Winter Storm Warning | MQT | 48 hr |
| Apr 12, 3:46 AM EDT | Lakeshore Flood Warning | MQT | 46 hr |
| Apr 28, 2:27 AM EDT | Dense Fog Advisory | MQT | 8 hr |
| Apr 29, 10:36 AM EDT | River Flood Advisory | MQT | 9 hr |
| Apr 29, 2:54 PM EDT | River Flood Advisory | MQT | 5 days |
| Apr 29, 7:37 PM EDT | River Flood Warning | MQT | 16 hr |
| Apr 30, 11:32 AM EDT | River Flood Advisory | MQT | 37 hr |
| May 1, 4:19 PM EDT | Fire Weather Watch | MQT | 12 hr |
| May 30, 3:09 PM EDT | Frost Advisory | MQT | 18 hr |
| Jun 9, 3:07 PM EDT | Flash Flood Watch | MQT | 13 hr |
| Jun 11, 4:11 AM EDT | Wind Advisory | MQT | 17 hr |
| Jun 12, 4:11 AM EDT | Frost Advisory | MQT | 27 hr |
| Jun 13, 3:15 PM EDT | Frost Advisory | MQT | 16 hr |
| Jun 21, 4:55 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 5, 8:53 PM EDT | Severe Thunderstorm Warning | MQT | 37 min |
| Jul 6, 9:33 PM EDT | Special Weather Statement | MQT | 42 min |
| Jul 8, 8:43 PM EDT | Severe Thunderstorm Warning | MQT | 32 min |
| Jul 9, 12:26 AM EDT | Special Weather Statement | MQT | 49 min |
| Jul 18, 5:11 AM EDT | Special Weather Statement | MQT | 64 min |
| Jul 18, 9:36 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Jul 18, 10:44 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 18, 11:59 PM EDT | Special Weather Statement | MQT | 46 min |
| Jul 19, 12:03 AM EDT | Severe Thunderstorm Warning | MQT | 42 min |
| Jul 19, 12:08 AM EDT | Severe Thunderstorm Warning | MQT | 52 min |
| Jul 19, 3:51 AM EDT | Wind Advisory | MQT | 19 hr |
| Aug 9, 4:46 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Aug 9, 4:52 PM EDT | Special Weather Statement | MQT | 23 min |
| Aug 9, 5:19 PM EDT | Special Weather Statement | MQT | 41 min |
| Aug 9, 8:01 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Aug 9, 8:13 PM EDT | Severe Thunderstorm Warning | MQT | 32 min |
| Aug 9, 8:32 PM EDT | Severe Thunderstorm Warning | MQT | 28 min |
| Aug 9, 8:57 PM EDT | Severe Thunderstorm Warning | MQT | 33 min |
| Aug 9, 9:05 PM EDT | Severe Thunderstorm Warning | MQT | 13 min |
| Aug 9, 9:08 PM EDT | Severe Thunderstorm Warning | MQT | 26 min |
| Aug 9, 9:31 PM EDT | Special Weather Statement | MQT | 29 min |
| Aug 9, 9:32 PM EDT | Areal Flood Advisory | MQT | 3 hr |
| Aug 9, 9:52 PM EDT | Severe Thunderstorm Warning | MQT | 23 min |
| Aug 9, 10:16 PM EDT | Flash Flood Warning | MQT | 3 hr |
| Aug 21, 7:08 PM EDT | Areal Flood Advisory | MQT | 3 hr |
| Aug 21, 8:15 PM EDT | Severe Thunderstorm Warning | MQT | 30 min |
| Aug 21, 9:47 PM EDT | Special Weather Statement | MQT | 28 min |
| Aug 21, 9:58 PM EDT | Special Weather Statement | MQT | 32 min |
| Aug 26, 2:11 AM EDT | Severe Thunderstorm Warning | MQT | 19 min |
| Sep 2, 4:19 PM EDT | Lakeshore Flood Advisory | MQT | 25 hr |
| Sep 2, 4:19 PM EDT | Wind Advisory | MQT | 26 hr |
| Sep 6, 4:15 AM EDT | Wind Advisory | MQT | 29 hr |
| Sep 9, 4:32 AM EDT | Frost Advisory | MQT | 28 hr |
| Sep 10, 3:22 PM EDT | Frost Advisory | MQT | 18 hr |
| Sep 13, 3:21 PM EDT | Frost Advisory | MQT | 18 hr |
| Sep 16, 3:59 AM EDT | Frost Advisory | MQT | 29 hr |
| Sep 17, 12:34 PM EDT | Freeze Warning | MQT | 21 hr |
| Sep 25, 6:31 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Sep 25, 7:01 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Sep 25, 8:46 PM EDT | Severe Thunderstorm Warning | MQT | 29 min |
| Sep 25, 9:43 PM EDT | Areal Flood Advisory | MQT | 62 min |
| Oct 12, 4:22 AM EDT | Wind Advisory | MQT | 9 hr |
| Oct 19, 3:36 PM EDT | Winter Weather Advisory | MQT | 37 hr |
| Oct 21, 4:29 PM EDT | Winter Weather Advisory | MQT | 49 hr |
| Oct 30, 4:13 PM EDT | Lakeshore Flood Advisory | MQT | 46 hr |
| Oct 31, 4:15 PM EDT | Winter Weather Advisory | MQT | 28 hr |
| Nov 10, 4:03 AM EST | Winter Weather Advisory | MQT | 25 hr |
| Nov 14, 11:47 AM EST | Lakeshore Flood Advisory | MQT | 43 hr |
| Nov 14, 3:18 PM EST | Wind Advisory | MQT | 33 hr |
| Nov 15, 11:03 AM EST | Winter Weather Advisory | MQT | 6 hr |
| Dec 13, 3:53 PM EST | Winter Weather Advisory | MQT | 22 hr |
| Dec 22, 1:06 PM EST | Lakeshore Flood Advisory | MQT | 51 hr |
| Dec 23, 3:47 AM EST | Winter Weather Advisory | MQT | 51 hr |
| Dec 27, 3:15 PM EST | Winter Weather Advisory | MQT | 34 hr |
| Dec 29, 4:06 AM EST | Winter Weather Advisory | MQT | 39 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 | 13 |
| Severe Thunderstorm Watch | 3 |
| Mesoscale Discussion | 4 |
| Special Weather Statement | 9 |
| Flooding | |
| Flash Flood Warning | 1 |
| River Flood Warning | 1 |
| Flash Flood Watch | 1 |
| Areal Flood Advisory | 3 |
| River Flood Advisory | 6 |
| Winter | |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 17 |
| Cold | |
| Freeze Warning | 1 |
| Frost Advisory | 7 |
| Wind and dust | |
| Wind Advisory | 8 |
| Fire | |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
| Coast and beach | |
| Lakeshore Flood Warning | 1 |
| Lakeshore Flood Advisory | 6 |
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. Warning verification from the Mesonet's Cow. Rebuilt daily.