Alert archive / Wisconsin / 2020
Weather alerts in Wisconsin, September 2020
154 weather alerts in September 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.
Weather alerts by county
Each county as a circle sized by its count in September 2020. Tap one for its archive.
- Alerts
- 154
- Warnings
- 31
- Watches
- 4
- Advisories
- 54
- Busiest day
- September 26, 202038 alerts
Over time
By day
Days in UTC, the clock the archive keeps.
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 | Counties | Lasted |
|---|---|---|---|---|
| Sep 1, 10:30 PM CDT | Special Weather Statement | DLH | Douglas | 30 min |
| Sep 1, 11:08 PM CDT | Special Weather Statement | DLH | Bayfield | 52 min |
| Sep 2, 2:56 AM CDT | Gale Watch | MKX | 12 hr | |
| Sep 2, 3:57 AM CDT | Small Craft Advisory | GRB | 14 hr | |
| Sep 2, 3:16 PM CDT | Gale Warning | MKX | 28 hr | |
| Sep 2, 3:16 PM CDT | Small Craft Advisory | MKX | 31 hr | |
| Sep 2, 8:57 PM CDT | Small Craft Advisory | GRB | 45 hr | |
| Sep 3, 5:59 AM CDT | Wind Advisory | DLH | Ashland, Bayfield, Douglas, Iron | 7 hr |
| Sep 4, 3:05 AM CDT | Small Craft Advisory | MKX | 15 hr | |
| Sep 5, 2:47 AM CDT | Gale Watch | MKX | 12 hr | |
| Sep 5, 2:47 PM CDT | Gale Warning | MKX | 37 hr | |
| Sep 5, 2:53 PM CDT | Beach Hazards Statement | GRB | Door, Kewaunee, Manitowoc | 37 hr |
| Sep 5, 2:53 PM CDT | Lakeshore Flood Advisory | GRB | Door, Kewaunee, Manitowoc, Marinette, Oconto | 30 hr |
| Sep 5, 3:00 PM CDT | Gale Warning | GRB | 30 hr | |
| Sep 5, 3:53 PM CDT | Beach Hazards Statement | MKX | Kenosha, Milwaukee, Ozaukee, Racine, Sheboygan | 35 hr |
| Sep 5, 3:53 PM CDT | Lakeshore Flood Advisory | MKX | Ozaukee, Sheboygan | 33 hr |
| Sep 6, 1:15 AM CDT | Special Weather Statement | ARX | Crawford, Grant | 60 min |
| Sep 6, 2:32 AM CDT | Mesoscale Discussion | SPC | Crawford, Grant, Lafayette | 88 min |
| Sep 6, 4:37 AM CDT | Special Weather Statement | ARX | Buffalo | 53 min |
| Sep 6, 2:49 PM CDT | Small Craft Advisory | MKX | 18 hr | |
| Sep 6, 3:38 PM CDT | Small Craft Advisory | GRB | 22 hr | |
| Sep 6, 6:47 PM CDT | Mesoscale Discussion | SPC | Calumet, Manitowoc, Milwaukee, Ozaukee, Sheboygan | 118 min |
| Sep 6, 9:32 PM CDT | Mesoscale Discussion | SPC | Kenosha, Racine | 118 min |
| Sep 7, 2:32 PM CDT | Beach Hazards Statement | MKX | Kenosha, Milwaukee, Ozaukee, Racine, Sheboygan | 3 days |
| Sep 7, 2:32 PM CDT | Lakeshore Flood Advisory | MKX | Kenosha, Milwaukee, Ozaukee, Racine, Sheboygan | 66 hr |
| Sep 7, 2:49 PM CDT | Small Craft Advisory | MKX | 3 days | |
| Sep 7, 3:08 PM CDT | Beach Hazards Statement | GRB | Door, Kewaunee, Manitowoc | 48 hr |
| Sep 7, 3:08 PM CDT | Lakeshore Flood Advisory | GRB | Brown, Oconto | 48 hr |
| Sep 7, 3:31 PM CDT | Small Craft Advisory | GRB | 54 hr | |
| Sep 8, 9:09 AM CDT | Frost Advisory | DLH | Ashland, Bayfield, Burnett, Douglas, Iron, Price and 2 more | 23 hr |
| Sep 9, 2:45 AM CDT | Frost Advisory | MPX | Barron, Chippewa, Dunn, Pierce, Polk, Rusk and 1 more | 28 hr |
| Sep 9, 3:10 AM CDT | Frost Advisory | ARX | Taylor | 29 hr |
| Sep 9, 3:30 AM CDT | Frost Advisory | GRB | Florence, Forest, Langlade, Lincoln, Oneida, Vilas | 29 hr |
| Sep 9, 8:47 AM CDT | Frost Advisory | DLH | Ashland, Bayfield, Iron, Price, Sawyer, Washburn | 23 hr |
| Sep 9, 8:47 AM CDT | Freeze Warning | DLH | Burnett, Douglas | 23 hr |
| Sep 10, 11:15 AM CDT | Freeze Warning | DLH | Ashland, Bayfield, Burnett, Douglas, Iron, Price and 2 more | 22 hr |
| Sep 10, 2:24 PM CDT | Frost Advisory | ARX | Adams, Clark, Jackson, Juneau, Monroe, Taylor | 19 hr |
| Sep 10, 2:29 PM CDT | Frost Advisory | GRB | Florence, Forest, Langlade, Lincoln, Marathon, Marinette and 9 more | 18 hr |
| Sep 10, 2:44 PM CDT | Frost Advisory | MPX | Barron, Chippewa, Dunn, Eau Claire, Pepin, Pierce and 3 more | 18 hr |
| Sep 11, 3:12 AM CDT | Small Craft Advisory | MKX | 41 hr | |
| Sep 11, 3:18 AM CDT | Beach Hazards Statement | MKX | Kenosha, Milwaukee, Ozaukee, Racine, Sheboygan | 41 hr |
| Sep 11, 3:21 AM CDT | Small Craft Advisory | GRB | 42 hr | |
| Sep 11, 3:10 PM CDT | Beach Hazards Statement | GRB | Door, Kewaunee, Manitowoc | 29 hr |
| Sep 13, 2:34 PM CDT | Frost Advisory | GRB | Florence, Forest, Oneida, Vilas | 17 hr |
| Sep 13, 3:13 PM CDT | Frost Advisory | DLH | Iron | 18 hr |
| Sep 14, 2:59 AM CDT | Gale Watch | MKX | 11 hr | |
| Sep 14, 1:54 PM CDT | Gale Warning | MKX | 31 hr | |
| Sep 14, 3:09 PM CDT | Small Craft Advisory | GRB | 40 hr | |
| Sep 14, 3:32 PM CDT | Beach Hazards Statement | GRB | Door, Kewaunee, Manitowoc | 32 hr |
| Sep 14, 9:03 PM CDT | Small Craft Advisory | MKX | 22 hr | |
| Sep 16, 2:48 AM CDT | Frost Advisory | DLH | Ashland, Bayfield, Burnett, Douglas, Iron, Price and 2 more | 29 hr |
| Sep 16, 2:48 AM CDT | Freeze Warning | DLH | Douglas | 29 hr |
| Sep 16, 2:58 AM CDT | Small Craft Advisory | MKX | 37 hr | |
| Sep 16, 3:01 AM CDT | Beach Hazards Statement | MKX | Kenosha, Milwaukee, Ozaukee, Racine, Sheboygan | 37 hr |
| Sep 16, 3:09 AM CDT | Frost Advisory | ARX | Taylor | 29 hr |
| Sep 16, 3:43 AM CDT | Frost Advisory | MPX | Barron, Polk, Rusk | 28 hr |
| Sep 16, 3:55 AM CDT | Frost Advisory | GRB | Florence, Forest, Langlade, Lincoln, Oneida, Vilas | 28 hr |
| Sep 17, 11:03 AM CDT | Frost Advisory | MPX | Barron, Chippewa, Eau Claire, Pepin, Polk, Rusk | 21 hr |
| Sep 17, 11:15 AM CDT | Frost Advisory | ARX | Adams, Clark, Jackson, Juneau, Monroe, Taylor | 21 hr |
| Sep 17, 11:33 AM CDT | Frost Advisory | DLH | Bayfield, Burnett, Douglas, Sawyer, Washburn | 21 hr |
| Sep 17, 11:33 AM CDT | Freeze Warning | DLH | Ashland, Iron, Price | 21 hr |
| Sep 17, 11:38 AM CDT | Frost Advisory | GRB | Marathon, Marinette, Menominee, Oconto, Portage, Shawano and 2 more | 20 hr |
| Sep 17, 11:38 AM CDT | Freeze Warning | GRB | Florence, Forest, Langlade, Lincoln, Oneida, Vilas | 21 hr |
| Sep 17, 7:37 PM CDT | Small Craft Advisory | MKX | 20 hr | |
| Sep 17, 7:49 PM CDT | Beach Hazards Statement | MKX | Kenosha, Milwaukee, Ozaukee, Racine, Sheboygan | 20 hr |
| Sep 18, 4:07 AM CDT | Freeze Warning | MPX | Barron, Chippewa, Dunn, Eau Claire, Pierce, Polk and 2 more | 4 hr |
| Sep 18, 1:37 PM CDT | Frost Advisory | ARX | Adams, Clark, Jackson, Juneau, Monroe | 18 hr |
| Sep 18, 1:43 PM CDT | Frost Advisory | GRB | Brown, Calumet, Kewaunee, Manitowoc, Marathon, Marinette and 9 more | 18 hr |
| Sep 19, 2:10 PM CDT | Beach Hazards Statement | MKX | Kenosha, Milwaukee, Ozaukee, Racine, Sheboygan | 53 hr |
| Sep 19, 2:15 PM CDT | Small Craft Advisory | MKX | 53 hr | |
| Sep 19, 2:39 PM CDT | Beach Hazards Statement | GRB | Door, Kewaunee, Manitowoc | 52 hr |
| Sep 19, 2:48 PM CDT | Small Craft Advisory | GRB | 61 hr | |
| Sep 21, 2:52 PM CDT | Special Weather Statement | DLH | Douglas | 23 min |
| Sep 21, 3:22 PM CDT | Special Weather Statement | DLH | Douglas | 23 min |
| Sep 21, 3:43 PM CDT | Special Weather Statement | DLH | Sawyer | 32 min |
| Sep 21, 3:46 PM CDT | Special Weather Statement | DLH | Bayfield | 29 min |
| Sep 23, 7:58 PM CDT | Special Weather Statement | GRB | Florence, Vilas | 62 min |
| Sep 23, 8:38 PM CDT | Special Weather Statement | DLH | Douglas | 22 min |
| Sep 23, 9:00 PM CDT | Special Weather Statement | GRB | Florence | 60 min |
| Sep 23, 9:27 PM CDT | Special Weather Statement | DLH | Douglas | 18 min |
| Sep 23, 9:37 PM CDT | Special Weather Statement | GRB | Vilas | 53 min |
| Sep 23, 9:46 PM CDT | Special Weather Statement | GRB | Vilas | 59 min |
| Sep 23, 10:01 PM CDT | Severe Thunderstorm Warning | GRB | Vilas | 44 min |
| Sep 23, 10:59 PM CDT | Special Weather Statement | DLH | Ashland | 31 min |
| Sep 23, 11:29 PM CDT | Special Weather Statement | DLH | Iron | 31 min |
| Sep 23, 11:34 PM CDT | Areal Flood Advisory | GRB | Florence, Forest, Marinette, Vilas | 5 hr |
| Sep 23, 11:37 PM CDT | Special Weather Statement | GRB | Vilas | 53 min |
| Sep 24, 12:26 AM CDT | Special Weather Statement | GRB | Oneida, Vilas | 64 min |
| Sep 24, 1:27 AM CDT | Special Weather Statement | DLH | Burnett | 33 min |
| Sep 24, 1:27 AM CDT | Special Weather Statement | GRB | Forest | 63 min |
| Sep 24, 4:29 AM CDT | Beach Hazards Statement | DLH | Douglas | 15 hr |
| Sep 24, 10:15 AM CDT | Special Weather Statement | ARX | La Crosse | 75 min |
| Sep 24, 2:12 PM CDT | Special Weather Statement | ARX | Crawford | 48 min |
| Sep 24, 4:29 PM CDT | Special Weather Statement | ARX | Richland | 31 min |
| Sep 24, 4:41 PM CDT | Special Weather Statement | GRB | Shawano, Waupaca | 49 min |
| Sep 24, 5:22 PM CDT | Special Weather Statement | GRB | Outagamie, Shawano | 53 min |
| Sep 24, 9:05 PM CDT | Beach Hazards Statement | GRB | Door, Kewaunee, Manitowoc | 29 hr |
| Sep 24, 9:06 PM CDT | Small Craft Advisory | GRB | 29 hr | |
| Sep 25, 12:25 AM CDT | Dense Fog Advisory | MKX | Sauk | 4 hr |
| Sep 25, 12:25 AM CDT | Dense Fog Advisory | MPX | Barron, Chippewa, Dunn, Eau Claire, Pepin, Pierce and 3 more | 8 hr |
| Sep 25, 12:32 AM CDT | Dense Fog Advisory | ARX | Adams, Buffalo, Clark, Crawford, Jackson, Juneau and 6 more | 7 hr |
| Sep 25, 12:58 AM CDT | Dense Fog Advisory | DLH | Ashland, Bayfield, Burnett, Douglas, Price, Sawyer and 1 more | 12 hr |
| Sep 25, 2:00 AM CDT | Dense Fog Advisory | GRB | Brown, Calumet, Marathon, Outagamie, Portage, Shawano and 4 more | 5 hr |
| Sep 25, 2:44 AM CDT | Beach Hazards Statement | MKX | Ozaukee, Sheboygan | 18 hr |
| Sep 25, 2:56 AM CDT | Small Craft Advisory | MKX | 18 hr | |
| Sep 25, 5:31 PM CDT | Mesoscale Discussion | SPC | Ashland, Bayfield, Iron, Sawyer | 119 min |
| Sep 25, 6:47 PM CDT | Special Weather Statement | DLH | Ashland | 13 min |
| Sep 25, 6:53 PM CDT | Severe Thunderstorm Warning | DLH | Ashland, Bayfield, Iron | 52 min |
| Sep 25, 7:26 PM CDT | Tornado Warning | DLH | Ashland, Iron | 22 min |
| Sep 25, 7:48 PM CDT | Severe Thunderstorm Warning | DLH | Ashland, Iron | 42 min |
| Sep 25, 8:25 PM CDT | Severe Thunderstorm Warning | DLH | Ashland, Iron | 50 min |
| Sep 25, 8:29 PM CDT | Small Craft Advisory | MKX | 35 hr | |
| Sep 25, 8:36 PM CDT | Special Weather Statement | GRB | Vilas | 24 min |
| Sep 25, 8:47 PM CDT | Mesoscale Discussion | SPC | Vilas | 118 min |
| Sep 25, 8:53 PM CDT | Severe Thunderstorm Warning | GRB | Vilas | 67 min |
| Sep 25, 9:14 PM CDT | Severe Thunderstorm Warning | DLH | Iron | 36 min |
| Sep 25, 9:16 PM CDT | Special Weather Statement | MQT | Vilas | 44 min |
| Sep 25, 9:53 PM CDT | Severe Thunderstorm Warning | GRB | Forest, Vilas | 52 min |
| Sep 25, 10:44 PM CDT | Severe Thunderstorm Warning | GRB | Florence, Forest | 28 min |
| Sep 26, 12:52 AM CDT | Dense Fog Advisory | DLH | Ashland, Bayfield, Burnett, Douglas, Sawyer, Washburn | 11 hr |
| Sep 26, 3:52 AM CDT | Small Craft Advisory | GRB | 39 hr | |
| Sep 26, 11:12 AM CDT | Beach Hazards Statement | GRB | Door, Kewaunee, Manitowoc | 23 hr |
| Sep 26, 12:54 PM CDT | Beach Hazards Statement | MKX | Ozaukee, Sheboygan | 9 hr |
| Sep 26, 2:34 PM CDT | Special Weather Statement | GRB | Langlade, Marathon | 56 min |
| Sep 26, 2:41 PM CDT | Special Weather Statement | ARX | Taylor | 49 min |
| Sep 26, 3:00 PM CDT | Severe Thunderstorm Warning | GRB | Langlade, Marathon, Menominee, Oconto, Shawano | 45 min |
| Sep 26, 3:07 PM CDT | Mesoscale Discussion | SPC | Brown, Clark, Door, Florence, Forest, Kewaunee and 15 more | 83 min |
| Sep 26, 3:09 PM CDT | Severe Thunderstorm Warning | GRB | Langlade, Lincoln, Marathon | 51 min |
| Sep 26, 3:45 PM CDT | Special Weather Statement | GRB | Oconto | 45 min |
| Sep 26, 4:04 PM CDT | Special Marine Warning | GRB | 86 min | |
| Sep 26, 4:09 PM CDT | Severe Thunderstorm Warning | GRB | Marinette, Oconto | 21 min |
| Sep 26, 4:13 PM CDT | Severe Thunderstorm Warning | GRB | Forest, Langlade, Marinette, Oconto | 32 min |
| Sep 26, 4:35 PM CDT | Special Weather Statement | GRB | Door | 25 min |
| Sep 26, 4:49 PM CDT | Special Weather Statement | GRB | Marinette | 41 min |
| Sep 26, 4:57 PM CDT | Special Weather Statement | MPX | Polk | 33 min |
| Sep 26, 5:06 PM CDT | Special Marine Warning | GRB | 24 min | |
| Sep 26, 5:15 PM CDT | Severe Thunderstorm Warning | MPX | Barron, Polk | 30 min |
| Sep 26, 5:17 PM CDT | Mesoscale Discussion | SPC | Barron, Burnett, Chippewa, Dunn, Florence, Forest and 11 more | 118 min |
| Sep 26, 5:24 PM CDT | Special Marine Warning | GRB | 51 min | |
| Sep 26, 5:30 PM CDT | Special Weather Statement | DLH | Washburn | 30 min |
| Sep 26, 5:33 PM CDT | Severe Thunderstorm Warning | GRB | Door | 42 min |
| Sep 26, 5:35 PM CDT | Special Marine Warning | GRB | 26 min | |
| Sep 26, 5:50 PM CDT | Severe Thunderstorm Watch | SPC | Ashland, Barron, Bayfield, Florence, Forest, Iron and 7 more | 3 hr |
| Sep 26, 5:55 PM CDT | Special Weather Statement | DLH | Sawyer | 35 min |
| Sep 26, 6:33 PM CDT | Special Weather Statement | GRB | Vilas | 42 min |
| Sep 26, 6:59 PM CDT | Special Weather Statement | DLH | Price | 31 min |
| Sep 26, 7:12 PM CDT | Severe Thunderstorm Warning | GRB | Florence, Forest, Vilas | 33 min |
| Sep 26, 7:21 PM CDT | Special Weather Statement | GRB | Oneida | 39 min |
| Sep 26, 7:57 PM CDT | Special Weather Statement | GRB | Vilas | 63 min |
| Sep 26, 9:37 PM CDT | Gale Warning | MKX | 6 hr | |
| Sep 29, 2:57 PM CDT | Small Craft Advisory | GRB | 31 hr | |
| Sep 29, 3:09 PM CDT | Small Craft Advisory | MKX | 29 hr | |
| Sep 30, 5:15 PM CDT | Special Weather Statement | MPX | Pierce | 45 min |
| Sep 30, 6:46 PM CDT | Special Weather Statement | MPX | Pierce | 44 min |
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 | 15 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 1 |
| Mesoscale Discussion | 7 |
| Special Weather Statement | 42 |
| Flooding | |
| Areal Flood Advisory | 1 |
| Cold | |
| Freeze Warning | 6 |
| Frost Advisory | 20 |
| Wind and dust | |
| Wind Advisory | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 6 |
| Coast and beach | |
| Lakeshore Flood Advisory | 4 |
| Beach Hazards Statement | 16 |
| Marine | |
| Gale Warning | 5 |
| Special Marine Warning | 4 |
| Gale Watch | 3 |
| Small Craft Advisory | 22 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Vilas County23
- Ashland County16
- Iron County16
- Douglas County15
- Forest County14
- Bayfield County13
- Florence County13
- Sawyer County12
- Door County11
- Ozaukee County11
- Sheboygan County11
- Kewaunee County10
- Manitowoc County10
- Marinette County10
- Oconto County10
- Price County10
- Washburn County10
- Oneida County10
- Burnett County9
- Barron County9
- Polk County9
- Langlade County9
- Kenosha County8
- Milwaukee County8
- Racine County8
- Rusk County8
- Taylor County8
- Marathon County8
- Shawano County8
- Lincoln County7
- Chippewa County6
- Pierce County6
- Waupaca County6
- Dunn County5
- Saint Croix County5
- Clark County5
- Menominee County5
- Portage County5
- Wood County5
- Crawford County4
19 more counties
Nearby
Alerts in force nowTornadoes on recordThe 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. Rebuilt daily.