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Home Return to list Severe Thunderstorm Warning 0040 Issued by the Green Bay Forecast Office
Action: New Issued At: 2026-05-17 15:25:58
847
WUUS53 KGRB 172025
SVRGRB
WIC015-071-172115-
/O.NEW.KGRB.SV.W.0040.260517T2025Z-260517T2115Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Green Bay WI
325 PM CDT Sun May 17 2026
The National Weather Service in Green Bay has issued a
* Severe Thunderstorm Warning for...
Southeastern Calumet County in east central Wisconsin...
Manitowoc County in east central Wisconsin...
* Until 415 PM CDT.
* At 325 PM CDT, a severe thunderstorm was located near St. Nazianz,
or 16 miles west of Manitowoc, moving northeast at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Trained weather spotters.
IMPACT...Expect damage to roofs, siding, and trees.
* This severe thunderstorm will be near...
Valders and St. Nazianz around 330 PM CDT.
Manitowoc around 345 PM CDT.
Other locations impacted by this severe thunderstorm include
Mishicot, Louis Corners, St Nazianz, Kellners Corners, Killsnake
Wildlife Area, Kellnersville, Larrabee, Two Rivers, Kiel, and Madsen.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4394 8816 4394 8818 4409 8821 4433 8767
4433 8758 4431 8748 4418 8746 4407 8760
4392 8767 4389 8804 4389 8816
TIME...MOT...LOC 2025Z 237DEG 28KT 4403 8800
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Bersch
Action: Continued Issued At: 2026-05-17 15:40:58
248
WWUS53 KGRB 172040
SVSGRB
Severe Weather Statement
National Weather Service Green Bay WI
340 PM CDT Sun May 17 2026
WIC015-172050-
/O.CAN.KGRB.SV.W.0040.000000T0000Z-260517T2115Z/
Calumet WI-
340 PM CDT Sun May 17 2026
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CALUMET COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
&&
LAT...LON 4396 8797 4415 8804 4433 8767 4433 8757
4431 8749 4418 8746 4407 8760 4392 8767
TIME...MOT...LOC 2040Z 237DEG 38KT 4413 8778
$$
WIC071-172115-
/O.CON.KGRB.SV.W.0040.000000T0000Z-260517T2115Z/
Manitowoc WI-
340 PM CDT Sun May 17 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM CDT
FOR MANITOWOC COUNTY...
At 340 PM CDT, a severe thunderstorm was located near Manitowoc,
moving northeast at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Trained weather spotters.
IMPACT...Expect damage to roofs, siding, and trees.
This severe storm will be near...
Manitowoc around 345 PM CDT.
Two Creeks around 400 PM CDT.
Other locations impacted by this severe thunderstorm include
Mishicot, St Nazianz, Kellners Corners, Kellnersville, Larrabee, Two
Rivers, Madsen, Reedsville, Grimms, and Taus.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4396 8797 4415 8804 4433 8767 4433 8757
4431 8749 4418 8746 4407 8760 4392 8767
TIME...MOT...LOC 2040Z 237DEG 38KT 4413 8778
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Bersch
Action: Cancelled Issued At: 2026-05-17 15:40:58
248
WWUS53 KGRB 172040
SVSGRB
Severe Weather Statement
National Weather Service Green Bay WI
340 PM CDT Sun May 17 2026
WIC015-172050-
/O.CAN.KGRB.SV.W.0040.000000T0000Z-260517T2115Z/
Calumet WI-
340 PM CDT Sun May 17 2026
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CALUMET COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
&&
LAT...LON 4396 8797 4415 8804 4433 8767 4433 8757
4431 8749 4418 8746 4407 8760 4392 8767
TIME...MOT...LOC 2040Z 237DEG 38KT 4413 8778
$$
WIC071-172115-
/O.CON.KGRB.SV.W.0040.000000T0000Z-260517T2115Z/
Manitowoc WI-
340 PM CDT Sun May 17 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM CDT
FOR MANITOWOC COUNTY...
At 340 PM CDT, a severe thunderstorm was located near Manitowoc,
moving northeast at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Trained weather spotters.
IMPACT...Expect damage to roofs, siding, and trees.
This severe storm will be near...
Manitowoc around 345 PM CDT.
Two Creeks around 400 PM CDT.
Other locations impacted by this severe thunderstorm include
Mishicot, St Nazianz, Kellners Corners, Kellnersville, Larrabee, Two
Rivers, Madsen, Reedsville, Grimms, and Taus.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4396 8797 4415 8804 4433 8767 4433 8757
4431 8749 4418 8746 4407 8760 4392 8767
TIME...MOT...LOC 2040Z 237DEG 38KT 4413 8778
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Bersch
Action: Continued Issued At: 2026-05-17 15:58:28
655
WWUS53 KGRB 172057
SVSGRB
Severe Weather Statement
National Weather Service Green Bay WI
357 PM CDT Sun May 17 2026
WIC071-172115-
/O.CON.KGRB.SV.W.0040.000000T0000Z-260517T2115Z/
Manitowoc WI-
357 PM CDT Sun May 17 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM CDT
FOR NORTHEASTERN MANITOWOC COUNTY...
At 356 PM CDT, a severe thunderstorm was located near Two Creeks, or
7 miles north of Manitowoc, moving northeast at 30 mph.
HAZARD...60 mph wind gusts.
SOURCE...Trained weather spotters.
IMPACT...Expect damage to roofs, siding, and trees.
This severe storm will be near...
Two Creeks around 405 PM CDT.
Other locations impacted by this severe thunderstorm include
Mishicot, Kellners Corners, Point Beach State Park, Fisherville,
Larrabee, Point Beach Nuclear Plant, Francis Creek, Two Rivers, Tisch
Mills, and Shoto.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4408 8774 4422 8777 4433 8767 4433 8757
4431 8749 4418 8746 4407 8760 4402 8763
TIME...MOT...LOC 2056Z 237DEG 28KT 4420 8763
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Bersch
Action: Expired Issued At: 2026-05-17 16:12:29
154
WWUS53 KGRB 172112
SVSGRB
Severe Weather Statement
National Weather Service Green Bay WI
412 PM CDT Sun May 17 2026
WIC071-172120-
/O.EXP.KGRB.SV.W.0040.000000T0000Z-260517T2115Z/
Manitowoc WI-
412 PM CDT Sun May 17 2026
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MANITOWOC COUNTY
WILL EXPIRE AT 415 PM CDT...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire. However, gusty
winds are still possible with these thunderstorms.
&&
LAT...LON 4408 8774 4422 8777 4433 8767 4433 8757
4431 8749 4418 8746 4407 8760 4402 8763
TIME...MOT...LOC 2110Z 237DEG 28KT 4426 8750
$$
Bersch
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