Alert archive / Wisconsin / Ozaukee County
Weather alerts in Ozaukee County, Wisconsin, 2026
125 weather alerts in 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Ozaukee County and its neighbors
Each county as a circle sized by its count in 2026. Tap one for its archive.
- Alerts
- 125
- Warnings
- 30
- Watches
- 21
- Advisories
- 29
- Busiest month
- July27 alerts
- Busiest day
- April 14, 20269 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 warnings covering Ozaukee County in 2026 had a tornado report inside them.
Ozaukee County, 2026
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 18 | 10 | 44% | 1 | 100% | 26 min |
| Flash flood warnings | 4 | 2 | 50% | 1 | 100% | 16 min |
Each office's whole area, 2026
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Milwaukee, WI: tornado warnings | 86 | 16 | 81% | 36 | 72% | 15 min |
| NWS Milwaukee, WI: severe thunderstorm warnings | 274 | 120 | 56% | 423 | 88% | 29 min |
| NWS Milwaukee, WI: flash flood warnings | 22 | 8 | 64% | 24 | 58% | 40 min |
An office's figures cover every county it serves, including across state lines.
The year is still running; reports filed late and damage surveys can still change these figures.
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, Central Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 10, 8:26 AM CST | Winter Weather Advisory | MKX | 5 hr |
| Jan 14, 6:58 AM CST | Winter Weather Advisory | MKX | 3 hr |
| Jan 16, 8:09 PM CST | Winter Weather Advisory | MKX | 13 hr |
| Jan 17, 10:33 AM CST | Winter Weather Advisory | MKX | 10 hr |
| Jan 18, 1:56 AM CST | Cold Weather Advisory | MKX | 34 hr |
| Jan 18, 10:15 AM CST | Winter Weather Advisory | MKX | 26 hr |
| Jan 20, 12:40 PM CST | Extreme Cold Watch | MKX | 25 hr |
| Jan 21, 1:25 PM CST | Extreme Cold Warning | MKX | 65 hr |
| Jan 21, 1:27 PM CST | Extreme Cold Watch | MKX | 21 hr |
| Jan 22, 10:14 AM CST | Cold Weather Advisory | MKX | 50 hr |
| Jan 25, 2:29 AM CST | Cold Weather Advisory | MKX | 33 hr |
| Feb 28, 12:59 PM CST | Winter Weather Advisory | MKX | 7 hr |
| Mar 5, 1:15 AM CST | Dense Fog Advisory | MKX | 32 hr |
| Mar 11, 9:13 PM CDT | Wind Advisory | MKX | 16 hr |
| Mar 12, 12:57 PM CDT | High Wind Warning | MKX | 27 hr |
| Mar 12, 2:24 PM CDT | Winter Storm Watch | MKX | 57 hr |
| Mar 13, 2:04 PM CDT | Winter Weather Advisory | MKX | 49 hr |
| Mar 13, 3:38 PM CDT | Wind Advisory | MKX | 3 hr |
| Mar 14, 11:04 PM CDT | Winter Storm Warning | MKX | 20 hr |
| Mar 14, 11:04 PM CDT | Winter Weather Advisory | MKX | 20 hr |
| Mar 15, 7:21 PM CDT | Blizzard Warning | MKX | 20 hr |
| Mar 16, 11:06 AM CDT | Winter Weather Advisory | MKX | 10 hr |
| Apr 1, 1:03 PM CDT | Winter Weather Advisory | MKX | 20 hr |
| Apr 2, 1:43 PM CDT | Tornado Watch | SPC | 8 hr |
| Apr 2, 7:45 PM CDT | Severe Thunderstorm Warning | MKX | 30 min |
| Apr 13, 10:34 AM CDT | Flood Watch | MKX | 20 hr |
| Apr 13, 3:11 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 13, 9:15 PM CDT | Mesoscale Discussion | SPC | 60 min |
| Apr 13, 9:42 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Apr 13, 11:43 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Apr 14, 1:10 AM CDT | Severe Thunderstorm Warning | MKX | 65 min |
| Apr 14, 1:38 AM CDT | Tornado Warning | MKX | 22 min |
| Apr 14, 1:50 AM CDT | Mesoscale Discussion | SPC | 85 min |
| Apr 14, 1:59 AM CDT | Special Weather Statement | MKX | 31 min |
| Apr 14, 2:33 PM CDT | Tornado Watch | SPC | 9 hr |
| Apr 14, 6:40 PM CDT | Severe Thunderstorm Warning | MKX | 50 min |
| Apr 14, 7:10 PM CDT | Flash Flood Warning | MKX | 3 hr |
| Apr 14, 10:02 PM CDT | Areal Flood Advisory | MKX | 3 hr |
| Apr 15, 11:17 AM CDT | Flood Watch | MKX | 24 hr |
| Apr 15, 11:22 AM CDT | River Flood Warning | MKX | 5 days |
| Apr 15, 8:03 PM CDT | Flash Flood Warning | MKX | 3 hr |
| Apr 16, 3:11 PM CDT | Flood Watch | MKX | 33 hr |
| Apr 16, 6:23 PM CDT | Dense Fog Advisory | MKX | 15 hr |
| Apr 17, 12:40 PM CDT | Tornado Watch | SPC | 9 hr |
| Apr 17, 6:33 PM CDT | Special Weather Statement | MKX | 57 min |
| Apr 17, 6:39 PM CDT | Severe Thunderstorm Warning | MKX | 51 min |
| Apr 17, 7:25 PM CDT | Severe Thunderstorm Warning | MKX | 50 min |
| May 1, 1:42 AM CDT | Freeze Warning | MKX | 30 hr |
| May 5, 1:13 PM CDT | Frost Advisory | MKX | 19 hr |
| May 6, 1:20 PM CDT | Frost Advisory | MKX | 19 hr |
| May 7, 12:48 PM CDT | Frost Advisory | MKX | 19 hr |
| May 10, 11:59 AM CDT | Frost Advisory | MKX | 20 hr |
| May 12, 3:45 PM CDT | Wind Advisory | MKX | 4 hr |
| May 12, 7:17 PM CDT | Special Weather Statement | MKX | 28 min |
| May 21, 12:31 PM CDT | Beach Hazards Statement | MKX | 39 hr |
| May 26, 8:58 PM CDT | Beach Hazards Statement | MKX | 40 hr |
| May 29, 1:01 PM CDT | Beach Hazards Statement | MKX | 32 hr |
| Jun 5, 9:18 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jun 5, 9:35 PM CDT | Special Weather Statement | MKX | 40 min |
| Jun 7, 1:22 PM CDT | Beach Hazards Statement | MKX | 30 hr |
| Jun 9, 11:20 AM CDT | Beach Hazards Statement | MKX | 33 hr |
| Jun 10, 1:07 AM CDT | Dense Fog Advisory | MKX | 6 hr |
| Jun 10, 12:00 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 10, 2:40 PM CDT | Severe Thunderstorm Warning | MKX | 80 min |
| Jun 10, 2:56 PM CDT | Severe Thunderstorm Warning | MKX | 64 min |
| Jun 10, 3:58 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 11, 11:02 AM CDT | Flood Watch | MKX | 9 hr |
| Jun 11, 12:43 PM CDT | Special Weather Statement | MKX | 32 min |
| Jun 16, 1:26 PM CDT | Severe Thunderstorm Warning | MKX | 16 min |
| Jun 16, 2:13 PM CDT | Special Weather Statement | MKX | 32 min |
| Jun 16, 4:51 PM CDT | Beach Hazards Statement | MKX | 35 hr |
| Jun 24, 12:44 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 24, 1:55 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 24, 5:28 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Jun 24, 7:47 PM CDT | Severe Thunderstorm Warning | MKX | 43 min |
| Jun 24, 8:29 PM CDT | Severe Thunderstorm Warning | MKX | 20 min |
| Jun 28, 7:47 AM CDT | Rip Current Statement | MKX | 37 min |
| Jun 28, 8:24 AM CDT | Beach Hazards Statement | MKX | 38 hr |
| Jun 28, 11:55 AM CDT | Extreme Heat Warning | MKX | 4 days |
| Jul 1, 6:59 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 1, 10:11 AM CDT | Mesoscale Discussion | SPC | 94 min |
| Jul 1, 2:34 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Jul 1, 11:27 PM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jul 2, 2:30 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Jul 2, 3:19 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 2, 5:10 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 2, 7:04 PM CDT | Special Weather Statement | MKX | 26 min |
| Jul 2, 7:10 PM CDT | Severe Thunderstorm Warning | MKX | 24 min |
| Jul 8, 1:59 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 8, 5:53 PM CDT | Special Weather Statement | MKX | 52 min |
| Jul 8, 9:46 PM CDT | Areal Flood Advisory | MKX | 3 hr |
| Jul 8, 9:52 PM CDT | Special Weather Statement | MKX | 53 min |
| Jul 8, 10:24 PM CDT | Flash Flood Warning | MKX | 3 hr |
| Jul 9, 12:34 PM CDT | Special Weather Statement | MKX | 71 min |
| Jul 13, 11:45 AM CDT | Heat Advisory | MKX | 56 hr |
| Jul 18, 2:04 AM CDT | Beach Hazards Statement | MKX | 29 hr |
| Jul 19, 4:20 PM CDT | Beach Hazards Statement | MKX | 35 hr |
| Jul 21, 3:47 AM CDT | Beach Hazards Statement | MKX | 33 hr |
| Jul 26, 10:16 PM CDT | Beach Hazards Statement | MKX | 54 hr |
| Jul 27, 1:59 AM CDT | Heat Advisory | MKX | 12 hr |
| Jul 27, 9:40 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 27, 10:57 AM CDT | Severe Thunderstorm Warning | MKX | 78 min |
| Jul 27, 11:42 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 27, 12:16 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Jul 27, 1:01 PM CDT | Severe Thunderstorm Warning | MKX | 89 min |
| Jul 31, 1:02 AM CDT | Beach Hazards Statement | MKX | 72 hr |
| Aug 9, 9:46 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 14, 1:32 PM CDT | Beach Hazards Statement | MKX | 29 hr |
| Aug 18, 2:48 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 18, 5:29 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 18, 6:23 PM CDT | Severe Thunderstorm Warning | MKX | 67 min |
| Sep 3, 7:41 AM CDT | Special Weather Statement | MKX | 49 min |
| Sep 3, 7:51 AM CDT | Severe Thunderstorm Warning | MKX | 54 min |
| Sep 3, 7:52 AM CDT | Mesoscale Discussion | SPC | 83 min |
| Sep 3, 9:04 AM CDT | Areal Flood Advisory | MKX | 3 hr |
| Sep 3, 9:19 AM CDT | Flash Flood Warning | MKX | 2 hr |
| Sep 3, 11:26 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Sep 4, 12:04 AM CDT | Severe Thunderstorm Warning | MKX | 56 min |
| Sep 4, 12:28 AM CDT | Areal Flood Advisory | MKX | 103 min |
| Sep 4, 12:54 AM CDT | Severe Thunderstorm Warning | MKX | 51 min |
| Sep 4, 2:08 AM CDT | Mesoscale Discussion | SPC | 97 min |
| Sep 4, 2:37 AM CDT | Severe Thunderstorm Warning | MKX | 53 min |
| Sep 13, 1:42 PM CDT | Beach Hazards Statement | MKX | 47 hr |
| Sep 17, 9:07 PM CDT | Flood Watch | MKX | 58 hr |
| Sep 18, 2:03 PM CDT | Beach Hazards Statement | MKX | 6 days |
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 archive2025
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.