Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 8, NWS Milwaukee, WI
NWS Milwaukee, WI issued this severe thunderstorm warning at Jul 14, 2021, 5:16 PM CDT for Columbia County, Sauk County, Wisconsin. It was in force for 44 min. 4 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 14, 2021, 5:16 PM CDT (22:16 UTC)
- Expired
- Jul 14, 2021, 6:00 PM CDT
- In force
- 44 min
- Issued by
- NWS Milwaukee, WI
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Columbia County, WI, Sauk County, WI
The radar
The Milwaukee radar (KMKX), 112 km from the middle of the area, began a volume at 22:16 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 14, 5:22 PM CDT | TSTM WND DMG | North Freedom, WI | MULTIPLE TREES DOWN IN NORTH FREEDOM. TIME ESTIMATED VIA RADAR. |
| Jul 14, 5:28 PM CDT | HAIL 1 | 1 Nw Baraboo, WI | REPORT RELAYED VIA SOCIAL MEDIA. TIME ESTIMATED VIA RADAR. |
| Jul 14, 5:30 PM CDT | TSTM WND DMG | Baraboo, WI | MULTIPLE REPORTS OF DOWNED TREES, LIMBS, AND POWERLINES ACROSS BARABOO AND THE SURROUNDING AREAS. TIME ESTIMATED BASED ON RADAR. |
| Jul 14, 5:45 PM CDT | TSTM WND DMG | 6 Sw Portage, WI | REPORTS OF DOWNED TREES AND LIMBS AROUND THE CALEDONIA AREA IN COLUMBIA COUNTY. TIME ESTIMATED VIA RADAR. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 10.3 hours before the alert went out and 180 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 579 J/kg
- Mixed-layer CIN
- -64 J/kg
- Mixed-layer LCL
- 1045 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 52 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
191
WUUS53 KMKX 142216
SVRMKX
WIC021-111-142300-
/O.NEW.KMKX.SV.W.0008.210714T2216Z-210714T2300Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Milwaukee/Sullivan WI
516 PM CDT Wed Jul 14 2021
The National Weather Service in Milwaukee/Sullivan has issued a
* Severe Thunderstorm Warning for...
Western Columbia County in south central Wisconsin...
Northeastern Sauk County in south central Wisconsin...
* Until 600 PM CDT.
* At 516 PM CDT, a severe thunderstorm was located 8 miles southwest
of West Baraboo, or 9 miles southeast of Reedsburg, moving east at
40 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Baraboo, Portage, Reedsburg, Lake Wisconsin, Lodi, West Baraboo,
Bluffview, North Freedom, Merrimac, Rock Springs, Loganville,
Harmony Grove, Interstate 90/94 Interchange, Okee and Devils Lake
St Park.
People attending The Sauk County Fair should seek safe shelter
immediately!
This includes the following Locations Gibraltar Rock Natural Area
County Park, Pine Island State Wildlife Area, and Historic Indian
Agency House.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4331 9004 4352 9004 4361 8944 4332 8942
TIME...MOT...LOC 2216Z 260DEG 33KT 4341 8992
HAIL...1.00IN
WIND...60MPH
$$
CMILLER4 follow-up statements
818
WWUS53 KMKX 142226
SVSMKX
Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
526 PM CDT Wed Jul 14 2021
WIC021-111-142300-
/O.CON.KMKX.SV.W.0008.000000T0000Z-210714T2300Z/
Columbia WI-Sauk WI-
526 PM CDT Wed Jul 14 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM CDT
FOR WESTERN COLUMBIA AND NORTHEASTERN SAUK COUNTIES...
At 526 PM CDT, a severe thunderstorm was located near West Baraboo,
or near Baraboo, moving east at 40 mph.
HAZARD...Ping pong ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.
Locations impacted include...
Baraboo, Portage, Reedsburg, Lake Wisconsin, Lodi, West Baraboo,
Bluffview, North Freedom, Merrimac, Rock Springs, Loganville, Harmony
Grove, Interstate 90/94 Interchange, Okee and Devils Lake St Park.
People attending The Sauk County Fair should seek safe shelter
immediately!
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
This storm is producing large hail. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows.
&&
LAT...LON 4331 9004 4352 9004 4361 8944 4332 8942
TIME...MOT...LOC 2226Z 260DEG 33KT 4343 8980
HAIL...1.50IN
WIND...60MPH
$$
CMILLER937
WWUS53 KMKX 142234
SVSMKX
Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
534 PM CDT Wed Jul 14 2021
WIC021-111-142300-
/O.CON.KMKX.SV.W.0008.000000T0000Z-210714T2300Z/
Columbia WI-Sauk WI-
534 PM CDT Wed Jul 14 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM CDT
FOR WESTERN COLUMBIA AND NORTHEASTERN SAUK COUNTIES...
At 533 PM CDT, a severe thunderstorm was located over Baraboo, moving
east at 40 mph.
HAZARD...Ping pong ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.
Locations impacted include...
Baraboo, Portage, Lake Wisconsin, Lodi, West Baraboo, Bluffview,
North Freedom, Merrimac, Harmony Grove, Interstate 90/94 Interchange,
Okee and Devils Lake St Park.
People attending The Sauk County Fair should seek safe shelter
immediately!
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This storm is producing large hail. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows.
&&
LAT...LON 4332 8986 4354 8987 4361 8944 4332 8942
TIME...MOT...LOC 2233Z 260DEG 33KT 4344 8970
HAIL...1.50IN
WIND...60MPH
$$
CMILLER974
WWUS53 KMKX 142243
SVSMKX
Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
543 PM CDT Wed Jul 14 2021
WIC021-111-142300-
/O.CON.KMKX.SV.W.0008.000000T0000Z-210714T2300Z/
Columbia WI-Sauk WI-
543 PM CDT Wed Jul 14 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM CDT
FOR WESTERN COLUMBIA AND EAST CENTRAL SAUK COUNTIES...
At 543 PM CDT, a severe thunderstorm was located near Lake Wisconsin,
moving east at 40 mph.
HAZARD...Ping pong ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated. Multiple trees have been reported down in
the Baraboo area.
IMPACT...People and animals outdoors
will be injured. Expect hail damage to roofs, siding,
windows, and vehicles. Expect wind damage to roofs, siding,
and trees.
Locations impacted include...
Portage, Lake Wisconsin, Merrimac, Interstate 90/94 Interchange, Okee
and Harmony Grove.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.
&&
LAT...LON 4333 8970 4356 8972 4361 8944 4332 8942
TIME...MOT...LOC 2243Z 260DEG 33KT 4346 8957
HAIL...1.50IN
WIND...60MPH
$$
CMILLER320
WWUS53 KMKX 142258
SVSMKX
Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
558 PM CDT Wed Jul 14 2021
WIC021-111-142306-
/O.EXP.KMKX.SV.W.0008.000000T0000Z-210714T2300Z/
Columbia WI-Sauk WI-
558 PM CDT Wed Jul 14 2021
...THE SEVERE THUNDERSTORM WARNING FOR WESTERN COLUMBIA AND EAST
CENTRAL SAUK COUNTIES WILL EXPIRE AT 600 PM CDT...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire. However hail and
gusty winds are still possible with this thunderstorm in Columbia
County.
Remember, a Severe Thunderstorm Warning still remains in effect for
Western Columbia County until 6:45 PM.
LAT...LON 4333 8970 4356 8972 4361 8944 4332 8942
TIME...MOT...LOC 2256Z 260DEG 33KT 4348 8942
$$
CMILLERThe office that day
Everything else NWS Milwaukee, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 14, 12:22 PM CDT | Special Weather Statement | MKX | Iowa, Lafayette, Sauk | 53 min |
| Jul 14, 12:50 PM CDT | Severe Thunderstorm Warning | MKX | Lafayette | 40 min |
| Jul 14, 1:15 PM CDT | Severe Thunderstorm Warning | MKX | Green, Lafayette | 45 min |
| Jul 14, 1:20 PM CDT | Special Weather Statement | MKX | Columbia, Dane | 55 min |
| Jul 14, 1:53 PM CDT | Special Weather Statement | MKX | Rock | 52 min |
| Jul 14, 2:36 PM CDT | Special Weather Statement | MKX | Jefferson, Walworth | 54 min |
| Jul 14, 3:15 PM CDT | Special Weather Statement | MKX | Kenosha, Milwaukee, Racine, Walworth, Waukesha | 60 min |
| Jul 14, 3:38 PM CDT | Special Weather Statement | MKX | Washington | 37 min |
| Jul 14, 4:04 PM CDT | Special Marine Warning | MKX | 26 min | |
| Jul 14, 4:15 PM CDT | Special Marine Warning | MKX | 60 min | |
| Jul 14, 5:08 PM CDT | Special Weather Statement | MKX | Sauk | 37 min |
| Jul 14, 5:45 PM CDT | Severe Thunderstorm Warning | MKX | Columbia, Dodge, Fond du Lac, Green Lake, Marquette | 60 min |
| Jul 14, 6:29 PM CDT | Special Weather Statement | MKX | Fond du Lac | 61 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 2021Every severe thunderstorm warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.