Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 31, NWS Green Bay, WI
NWS Green Bay, WI issued this severe thunderstorm warning at Jun 19, 2021, 5:41 AM CDT for Calumet County, Winnebago County, Wisconsin. It was in force for 49 min. 2 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
- Jun 19, 2021, 5:41 AM CDT (10:41 UTC)
- Expired
- Jun 19, 2021, 6:30 AM CDT
- In force
- 49 min
- Issued by
- NWS Green Bay, WI
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Calumet County, WI, Winnebago County, WI
The radar
The Green Bay radar (KGRB), 56 km from the middle of the area, began a volume at 10:45 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 |
|---|---|---|---|
| Jun 19, 6:09 AM CDT | HAIL 0.75 | 1 Ne Stockbridge, WI | |
| Jun 19, 6:09 AM CDT | HAIL 0.75 | 3 Nnw Stockbridge, WI |
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 00:00Z, 10.7 hours before the alert went out and 55 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3104 m above ground
- 0-6 km bulk shear
- 69 kt
- 0-1 km storm-relative helicity
- 61 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
272 WUUS53 KGRB 191041 SVRGRB WIC015-139-191130- /O.NEW.KGRB.SV.W.0031.210619T1041Z-210619T1130Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Green Bay WI 541 AM CDT Sat Jun 19 2021 The National Weather Service in Green Bay has issued a * Severe Thunderstorm Warning for... Calumet County in east central Wisconsin... Winnebago County in east central Wisconsin... * Until 630 AM CDT. * At 540 AM CDT, a severe thunderstorm was located near Lake Poygan, or 15 miles northwest of Oshkosh, moving east at 50 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. * This severe thunderstorm will be near... Oshkosh around 555 AM CDT. Menasha around 600 AM CDT. Other locations in the path of this severe thunderstorm include Northern Lake Winnebago, High Cliff State Park, Chilton and Brillion. PRECAUTIONARY/PREPAREDNESS ACTIONS... Prepare immediately for large hail and deadly cloud to ground lightning. Seek shelter inside a well-built structure. Stay away from windows. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4406 8889 4424 8888 4424 8804 4391 8804 TIME...MOT...LOC 1040Z 278DEG 42KT 4417 8880 HAIL...1.00IN WIND...<50MPH $$ Kallas
5 follow-up statements
176 WWUS53 KGRB 191049 SVSGRB Severe Weather Statement National Weather Service Green Bay WI 549 AM CDT Sat Jun 19 2021 WIC015-139-191130- /O.CON.KGRB.SV.W.0031.000000T0000Z-210619T1130Z/ Calumet WI-Winnebago WI- 549 AM CDT Sat Jun 19 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 AM CDT FOR CALUMET AND NORTHEASTERN WINNEBAGO COUNTIES... At 549 AM CDT, a severe thunderstorm was located 9 miles northwest of Oshkosh, moving east at 50 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. This severe storm will be near... Oshkosh around 555 AM CDT. Menasha around 600 AM CDT. Other locations in the path of this severe thunderstorm include Northern Lake Winnebago, High Cliff State Park, Chilton and Brillion. PRECAUTIONARY/PREPAREDNESS ACTIONS... Prepare immediately for large hail and deadly cloud to ground lightning. Seek shelter inside a well-built structure. Stay away from windows. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4403 8871 4424 8879 4424 8804 4391 8804 TIME...MOT...LOC 1049Z 277DEG 43KT 4415 8864 HAIL...1.00IN WIND...<50MPH $$ Kallas
159 WWUS53 KGRB 191059 SVSGRB Severe Weather Statement National Weather Service Green Bay WI 559 AM CDT Sat Jun 19 2021 WIC015-139-191130- /O.CON.KGRB.SV.W.0031.000000T0000Z-210619T1130Z/ Calumet WI-Winnebago WI- 559 AM CDT Sat Jun 19 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 AM CDT FOR CALUMET AND NORTHEASTERN WINNEBAGO COUNTIES... At 558 AM CDT, a severe thunderstorm was located near Northern Lake Winnebago, or 8 miles northeast of Oshkosh, moving east at 50 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. This severe storm will be near... High Cliff State Park around 605 AM CDT. Other locations in the path of this severe thunderstorm include Chilton and Brillion. PRECAUTIONARY/PREPAREDNESS ACTIONS... Prepare immediately for large hail and deadly cloud to ground lightning. Seek shelter inside a well-built structure. Stay away from windows. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4406 8858 4424 8865 4424 8804 4399 8804 TIME...MOT...LOC 1058Z 278DEG 46KT 4413 8845 HAIL...1.00IN WIND...<50MPH $$ Kallas
818
WWUS53 KGRB 191106
SVSGRB
Severe Weather Statement
National Weather Service Green Bay WI
606 AM CDT Sat Jun 19 2021
WIC139-191115-
/O.CAN.KGRB.SV.W.0031.000000T0000Z-210619T1130Z/
Winnebago WI-
606 AM CDT Sat Jun 19 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN WINNEBAGO COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has Moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 4404 8839 4413 8841 4424 8840 4424 8804
4399 8804
TIME...MOT...LOC 1105Z 276DEG 48KT 4412 8830
$$
WIC015-191130-
/O.CON.KGRB.SV.W.0031.000000T0000Z-210619T1130Z/
Calumet WI-
606 AM CDT Sat Jun 19 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 AM CDT
FOR CALUMET COUNTY...
At 605 AM CDT, a severe thunderstorm was located over High Cliff
State Park, or 11 miles southeast of Appleton, moving east at 55 mph.
HAZARD...Quarter size hail.
SOURCE...Radar indicated.
IMPACT...Damage to vehicles is expected.
This severe storm will be near...
Chilton around 615 AM CDT.
Other locations in the path of this severe thunderstorm include
Brillion.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for large hail and deadly cloud to ground
lightning. Seek shelter inside a well-built structure. Stay away from
windows.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4404 8839 4413 8841 4424 8840 4424 8804
4399 8804
TIME...MOT...LOC 1105Z 276DEG 48KT 4412 8830
HAIL...1.00IN
WIND...<50MPH
$$
Kallas337
WWUS53 KGRB 191113
SVSGRB
Severe Weather Statement
National Weather Service Green Bay WI
613 AM CDT Sat Jun 19 2021
WIC015-191130-
/O.CON.KGRB.SV.W.0031.000000T0000Z-210619T1130Z/
Calumet WI-
613 AM CDT Sat Jun 19 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 AM CDT
FOR CALUMET COUNTY...
At 612 AM CDT, a severe thunderstorm was located near Chilton, or 15
miles southeast of Appleton, moving east at 50 mph.
HAZARD...Quarter size hail.
SOURCE...Radar indicated.
IMPACT...Damage to vehicles is expected.
This severe thunderstorm will remain over mainly rural areas of
Calumet County, including the following locations... Brant, Killsnake
Wildlife Area, Stockbridge, Kloten, Sherwood, Forest Junction,
Harrison, Dundas, St John and Potter.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for large hail and deadly cloud to ground
lightning. Seek shelter inside a well-built structure. Stay away from
windows.
Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4404 8839 4413 8841 4424 8840 4424 8804
4399 8804
TIME...MOT...LOC 1112Z 278DEG 42KT 4411 8818
HAIL...1.00IN
WIND...<50MPH
$$
Kallas584
WWUS53 KGRB 191124
SVSGRB
Severe Weather Statement
National Weather Service Green Bay WI
624 AM CDT Sat Jun 19 2021
WIC015-191134-
/O.EXP.KGRB.SV.W.0031.000000T0000Z-210619T1130Z/
Calumet WI-
624 AM CDT Sat Jun 19 2021
...THE SEVERE THUNDERSTORM WARNING FOR CALUMET COUNTY WILL EXPIRE AT
630 AM CDT...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.
LAT...LON 4404 8839 4413 8841 4424 8840 4424 8804
4399 8804
TIME...MOT...LOC 1124Z 278DEG 42KT 4409 8801
$$
KallasThe office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 4:31 AM CDT | Special Weather Statement | GRB | Outagamie | 44 min |
| Jun 19, 4:43 AM CDT | Special Weather Statement | GRB | Shawano | 62 min |
| Jun 19, 5:33 AM CDT | Special Weather Statement | GRB | Calumet, Winnebago | 57 min |
| Jun 19, 5:57 AM CDT | Special Weather Statement | GRB | Brown | 48 min |
| Jun 19, 6:18 AM CDT | Severe Thunderstorm Warning | GRB | Manitowoc | 27 min |
| Jun 19, 6:31 AM CDT | Special Marine Warning | GRB | 44 min | |
| Jun 19, 6:35 AM CDT | Special Weather Statement | GRB | Brown, Calumet, Kewaunee, Manitowoc | 40 min |
| Jun 19, 7:10 AM CDT | Special Weather Statement | GRB | Brown, Calumet, Manitowoc | 50 min |
| Jun 19, 7:52 AM CDT | Special Marine Warning | GRB | 36 min | |
| Jun 19, 8:04 AM CDT | Special Weather Statement | GRB | Manitowoc | 56 min |
| Jun 19, 8:31 AM CDT | Special Weather Statement | GRB | Manitowoc | 44 min |
| Jun 19, 8:45 AM CDT | Special Marine Warning | GRB | 45 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.