Alert archive / Michigan / Saginaw County
Weather alerts in Saginaw County, Michigan, 2018
84 weather alerts in 2018, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Saginaw County and its neighbors
Each county as a circle sized by its count in 2018. Tap one for its archive.
- Alerts
- 84
- Warnings
- 27
- Watches
- 7
- Advisories
- 22
- Busiest month
- August17 alerts
- Busiest day
- May 27, 20187 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Saginaw County, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 11 | 7 | 36% | 6 | 83% | 20 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Detroit, MI: tornado warnings | 6 | 2 | 67% | 3 | 100% | 12 min |
| NWS Detroit, MI: severe thunderstorm warnings | 54 | 34 | 37% | 80 | 76% | 18 min |
| NWS Detroit, MI: flash flood warnings | 2 | 0 | 100% | 0 |
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, 3:08 PM EST | Wind Chill Advisory | DTX | 69 hr |
| Jan 4, 3:42 PM EST | Wind Chill Warning | DTX | 20 hr |
| Jan 11, 4:12 PM EST | Winter Weather Advisory | DTX | 26 hr |
| Jan 12, 3:04 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 23, 12:31 AM EST | Dense Fog Advisory | DTX | 3 hr |
| Feb 3, 3:44 PM EST | Winter Weather Advisory | DTX | 27 hr |
| Feb 10, 3:06 PM EST | Winter Weather Advisory | DTX | 24 hr |
| Feb 19, 4:00 AM EST | Flood Watch | DTX | 60 hr |
| Feb 20, 10:45 AM EST | River Flood Warning | DTX | 7 days |
| Feb 20, 4:15 PM EST | River Flood Warning | DTX | 57 hr |
| Feb 20, 4:15 PM EST | River Flood Warning | DTX | 3 days |
| Feb 20, 4:15 PM EST | River Flood Warning | DTX | 9 days |
| Feb 21, 2:04 AM EST | River Flood Warning | DTX | 4 days |
| Feb 21, 9:16 AM EST | River Flood Warning | DTX | 44 hr |
| Feb 23, 4:28 AM EST | River Flood Warning | DTX | 48 hr |
| Feb 25, 2:27 AM EST | Wind Advisory | DTX | 13 hr |
| Mar 1, 3:40 AM EST | Winter Weather Advisory | DTX | 20 hr |
| Mar 6, 4:00 PM EST | Winter Weather Advisory | DTX | 50 hr |
| Mar 30, 3:29 PM EDT | Wind Advisory | DTX | 29 hr |
| Apr 12, 3:56 AM EDT | Winter Storm Watch | DTX | 35 hr |
| Apr 13, 3:03 PM EDT | Winter Storm Warning | DTX | 54 hr |
| Apr 14, 9:48 AM EDT | River Flood Warning | DTX | 7 days |
| Apr 15, 12:14 AM EDT | Mesoscale Discussion | SPC | 6 hr |
| Apr 16, 10:19 AM EDT | River Flood Warning | DTX | 59 hr |
| Apr 30, 3:30 PM EDT | Red Flag Warning | DTX | 29 hr |
| May 3, 12:55 AM EDT | Special Weather Statement | DTX | 65 min |
| May 3, 3:26 PM EDT | Wind Advisory | DTX | 19 hr |
| May 4, 10:20 AM EDT | High Wind Warning | DTX | 6 hr |
| May 9, 9:43 PM EDT | Special Weather Statement | DTX | 77 min |
| May 9, 10:27 PM EDT | Special Weather Statement | DTX | 48 min |
| May 23, 2:36 AM EDT | Dense Fog Advisory | DTX | 5 hr |
| May 26, 8:20 PM EDT | Severe Thunderstorm Warning | DTX | 55 min |
| May 26, 8:22 PM EDT | Severe Thunderstorm Warning | DTX | 53 min |
| May 26, 8:25 PM EDT | Severe Thunderstorm Warning | DTX | 52 min |
| May 26, 9:09 PM EDT | Severe Thunderstorm Warning | DTX | 50 min |
| May 27, 3:12 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| May 27, 6:15 PM EDT | Special Weather Statement | DTX | 60 min |
| May 27, 6:48 PM EDT | Severe Thunderstorm Warning | DTX | 57 min |
| May 30, 8:41 PM EDT | Special Weather Statement | DTX | 64 min |
| Jun 16, 3:00 PM EDT | Heat Advisory | DTX | 51 hr |
| Jun 18, 7:55 PM EDT | Special Weather Statement | DTX | 35 min |
| Jun 29, 3:53 AM EDT | Excessive Heat Watch | DTX | 11 hr |
| Jun 29, 2:31 PM EDT | Excessive Heat Warning | DTX | 33 hr |
| Jun 30, 11:34 PM EDT | Heat Advisory | DTX | 20 hr |
| Jul 1, 10:37 PM EDT | Special Weather Statement | DTX | 53 min |
| Jul 4, 3:15 AM EDT | Heat Advisory | DTX | 41 hr |
| Jul 16, 1:32 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 16, 2:19 PM EDT | Special Weather Statement | DTX | 86 min |
| Jul 16, 2:37 PM EDT | Severe Thunderstorm Warning | DTX | 48 min |
| Jul 16, 7:17 PM EDT | Special Weather Statement | DTX | 43 min |
| Aug 1, 7:12 PM EDT | Special Weather Statement | DTX | 63 min |
| Aug 2, 6:00 PM EDT | Special Weather Statement | DTX | 60 min |
| Aug 2, 9:09 PM EDT | Special Weather Statement | DTX | 66 min |
| Aug 8, 12:51 PM EDT | Special Weather Statement | DTX | 39 min |
| Aug 19, 4:45 PM EDT | Special Weather Statement | DTX | 60 min |
| Aug 26, 10:32 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Aug 26, 11:12 PM EDT | Special Weather Statement | DTX | 93 min |
| Aug 26, 11:58 PM EDT | Special Weather Statement | DTX | 62 min |
| Aug 27, 12:13 AM EDT | Severe Thunderstorm Warning | DTX | 47 min |
| Aug 27, 12:31 AM EDT | Severe Thunderstorm Warning | DTX | 44 min |
| Aug 27, 3:59 AM EDT | Flood Watch | DTX | 6 hr |
| Aug 27, 7:37 AM EDT | Special Weather Statement | DTX | 23 min |
| Aug 28, 12:08 PM EDT | Flood Watch | DTX | 15 hr |
| Aug 28, 6:23 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 28, 8:20 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Aug 28, 8:41 PM EDT | Severe Thunderstorm Warning | DTX | 94 min |
| Aug 29, 2:14 AM EDT | Special Weather Statement | DTX | 61 min |
| Sep 1, 8:48 PM EDT | Severe Thunderstorm Warning | DTX | 30 min |
| Sep 2, 6:32 AM EDT | Special Weather Statement | DTX | 58 min |
| Sep 5, 6:58 PM EDT | Severe Thunderstorm Warning | DTX | 45 min |
| Sep 14, 3:10 AM EDT | Dense Fog Advisory | DTX | 8 hr |
| Sep 21, 3:58 AM EDT | Wind Advisory | DTX | 14 hr |
| Sep 21, 8:34 AM EDT | Special Weather Statement | DTX | 41 min |
| Sep 25, 6:21 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Sep 25, 6:45 PM EDT | Special Weather Statement | DTX | 60 min |
| Oct 12, 3:40 PM EDT | Frost Advisory | DTX | 12 hr |
| Oct 17, 3:21 AM EDT | Freeze Warning | DTX | 29 hr |
| Nov 15, 5:51 PM EST | Winter Weather Advisory | DTX | 16 hr |
| Nov 24, 3:22 PM EST | Winter Storm Watch | DTX | 12 hr |
| Nov 25, 3:24 AM EST | Winter Weather Advisory | DTX | 34 hr |
| Nov 25, 2:55 PM EST | Winter Storm Warning | DTX | 22 hr |
| Dec 14, 2:56 AM EST | Winter Weather Advisory | DTX | 5 hr |
| Dec 14, 6:35 PM EST | Dense Fog Advisory | DTX | 8 hr |
| Dec 16, 5:10 AM EST | Freezing Fog Advisory | DTX | 7 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 | 1 |
| Mesoscale Discussion | 7 |
| Special Weather Statement | 21 |
| Flooding | |
| River Flood Warning | 9 |
| Flood Watch | 3 |
| Winter | |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 8 |
| Heat | |
| Excessive Heat Warning | 1 |
| Excessive Heat Watch | 1 |
| Heat Advisory | 3 |
| Cold | |
| Freeze Warning | 1 |
| Wind Chill Warning | 1 |
| Frost Advisory | 1 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 1 |
| Wind Advisory | 4 |
| Fire | |
| Red Flag Warning | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 4 |
| Freezing Fog Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20172019
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.