Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 42, NWS Green Bay, WI
NWS Green Bay, WI issued this severe thunderstorm warning at Jun 18, 2012, 4:51 PM CDT for Calumet County, Winnebago County, Wisconsin. It was in force for 39 min. 8 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 18, 2012, 4:51 PM CDT (21:51 UTC)
- Expired
- Jun 18, 2012, 5:30 PM CDT
- In force
- 39 min
- Issued by
- NWS Green Bay, WI
- Area
- Storm-based polygon
- Hail
- 1.75 in
- Wind
- 60.0 mph
Counties Calumet County, WI, Winnebago County, WI
The radar
The Green Bay radar (KGRB), 52 km from the middle of the area, began a volume at 21:51 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 18, 5:12 PM CDT | HAIL 0.5 | 1 S Larsen, WI | ALSO SEES WALL CLOUD |
| Jun 18, 5:12 PM CDT | HAIL 0.75 | Neenah, WI | |
| Jun 18, 5:12 PM CDT | HAIL 1.25 | Neenah, WI | |
| Jun 18, 5:15 PM CDT | HAIL 1.25 | Neenah, WI | |
| Jun 18, 5:18 PM CDT | HAIL 1.25 | Neenah, WI | |
| Jun 18, 5:19 PM CDT | HAIL 1 | Menasha, WI | |
| Jun 18, 5:20 PM CDT | HAIL 1 | 2 S Appleton, WI | |
| Jun 18, 5:26 PM CDT | HAIL 1 | 2 E Menasha, WI |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 18, 12:24 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 9.9 hours before the alert went out and 52 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
- 67 J/kg
- Mixed-layer CIN
- -387 J/kg
- Mixed-layer LCL
- 1455 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 382 m²/s²
- 0-3 km storm-relative helicity
- 524 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
As transmitted, in the capitals the NWS used until 2016.
304 WUUS53 KGRB 182151 SVRGRB WIC015-139-182230- /O.NEW.KGRB.SV.W.0042.120618T2151Z-120618T2230Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GREEN BAY WI 451 PM CDT MON JUN 18 2012 THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN CALUMET COUNTY IN EAST CENTRAL WISCONSIN... NORTHERN WINNEBAGO COUNTY IN EAST CENTRAL WISCONSIN... * UNTIL 530 PM CDT * AT 447 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR LAKE POYGAN...OR 15 MILES SOUTHEAST OF WAUPACA...AND MOVING EAST AT 50 MPH. * LOCATIONS IMPACTED INCLUDE... WINNECONNE...WINCHESTER...LARSEN...ALLENVILLE...MENASHA...NEENAH... NORTHERN LAKE WINNEBAGO AND CENTRAL LAKE WINNEBAGO. PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...LARGE HAIL...AND DEADLY LIGHTNING. FOR YOUR PROTECTION...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. && LAT...LON 4412 8889 4424 8889 4424 8808 4405 8806 TIME...MOT...LOC 2151Z 270DEG 44KT 4419 8877 WIND...HAIL 60MPH 1.75IN $$ MPC
3 follow-up statements
044 WWUS53 KGRB 182153 SVSGRB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 453 PM CDT MON JUN 18 2012 WIC015-139-182230- /O.CON.KGRB.SV.W.0042.000000T0000Z-120618T2230Z/ CALUMET WI-WINNEBAGO WI- 453 PM CDT MON JUN 18 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN WINNEBAGO AND NORTHERN CALUMET COUNTIES UNTIL 530 PM CDT... AT 451 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE DESTRUCTIVE HAIL UP TO TENNIS BALL SIZE...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR LAKE POYGAN...OR 16 MILES NORTHWEST OF OSHKOSH...MOVING EAST AT 50 MPH. LOCATIONS IMPACTED INCLUDE... WINCHESTER...LARSEN...ALLENVILLE...NEENAH...MENASHA...NORTHERN LAKE WINNEBAGO...CENTRAL LAKE WINNEBAGO AND DARBOY. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS STORM HAS EXHIBITED SOME WEAK ROTATION. TORNADOES CAN DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS NOT IMMEDIATELY LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY INSIDE A STURDY STRUCTURE... SUCH AS A BASEMENT OR SMALL INTERIOR ROOM. DUE TO THE NATURE OF THESE DANGEROUS STORMS...THEY ARE CAPABLE OF PRODUCING ALL TYPES OF SEVERE WEATHER...INCLUDING EXTREMELY LARGE HAIL...DESTRUCTIVE STRAIGHT LINE WINDS AND POSSIBLY TORNADOES. BE PREPARED TO ACT QUICKLY SHOULD A TORNADO OCCUR OR A TORNADO WARNING BE ISSUED. && LAT...LON 4412 8889 4424 8889 4424 8808 4405 8806 TIME...MOT...LOC 2154Z 270DEG 44KT 4419 8872 WIND...HAIL 60MPH 2.50IN $$ MPC
966 WWUS53 KGRB 182208 SVSGRB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 508 PM CDT MON JUN 18 2012 WIC015-139-182230- /O.CON.KGRB.SV.W.0042.000000T0000Z-120618T2230Z/ CALUMET WI-WINNEBAGO WI- 508 PM CDT MON JUN 18 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN WINNEBAGO AND NORTHERN CALUMET COUNTIES UNTIL 530 PM CDT... AT 504 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 70 MPH. THIS STORM WAS LOCATED 9 MILES SOUTHWEST OF APPLETON...MOVING EAST AT 50 MPH. IN ADDITION...AT 504 PM...GOLF BALL SIZE HAIL WAS REPORTED 4 MILES NORTHWEST OF WINCHESTER WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... NEENAH...MENASHA...NORTHERN LAKE WINNEBAGO...CENTRAL LAKE WINNEBAGO...DARBOY...HIGH CLIFF STATE PARK...SHERWOOD AND DUNDAS. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE IMMEDIATELY FOR LARGE DESTRUCTIVE HAIL CAPABLE OF PRODUCING SIGNIFICANT DAMAGE. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER... PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS. DUE TO THE NATURE OF THESE DANGEROUS STORMS...THEY ARE CAPABLE OF PRODUCING ALL TYPES OF SEVERE WEATHER...INCLUDING EXTREMELY LARGE HAIL...DESTRUCTIVE STRAIGHT LINE WINDS AND POSSIBLY TORNADOES. BE PREPARED TO ACT QUICKLY SHOULD A TORNADO OCCUR OR A TORNADO WARNING BE ISSUED. && LAT...LON 4412 8889 4424 8889 4424 8808 4405 8806 TIME...MOT...LOC 2207Z 270DEG 44KT 4419 8850 WIND...HAIL 60MPH 1.75IN $$ MPC
481 WWUS53 KGRB 182231 SVSGRB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 531 PM CDT MON JUN 18 2012 WIC015-139-182241- /O.EXP.KGRB.SV.W.0042.000000T0000Z-120618T2230Z/ CALUMET WI-WINNEBAGO WI- 531 PM CDT MON JUN 18 2012 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN WINNEBAGO AND NORTHERN CALUMET COUNTIES IS BEING REISSUED... PLEASE REFER TO THAT BULLETIN FOR THE LATEST SEVERE WEATHER INFORMATION. HOWEVER SMALL HAIL IS STILL POSSIBLE WITH THIS THUNDERSTORM. REMEMBER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR PORTIONS OF WINNEBAGO...CALUMET...OUTGAMIE...MANITOWOC AND KEWAUNEE UNTIL 615 PM. LAT...LON 4412 8889 4424 8889 4424 8808 4405 8806 TIME...MOT...LOC 2208Z 270DEG 44KT 4419 8848 $$ MPC
The office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 4:03 AM CDT | Special Marine Warning | GRB | 87 min | |
| Jun 18, 1:34 PM CDT | Severe Thunderstorm Warning | GRB | Langlade, Lincoln, Oneida | 56 min |
| Jun 18, 2:14 PM CDT | Severe Thunderstorm Warning | GRB | Lincoln, Marathon | 46 min |
| Jun 18, 2:28 PM CDT | Severe Thunderstorm Warning | GRB | Forest, Langlade, Lincoln, Oconto | 47 min |
| Jun 18, 2:58 PM CDT | Severe Thunderstorm Warning | GRB | Marathon | 47 min |
| Jun 18, 3:22 PM CDT | Tornado Warning | GRB | Marathon | 23 min |
| Jun 18, 3:28 PM CDT | Severe Thunderstorm Warning | GRB | Menominee, Portage, Shawano, Waupaca | 47 min |
| Jun 18, 3:41 PM CDT | Tornado Warning | GRB | Langlade, Marathon, Menominee, Shawano | 34 min |
| Jun 18, 3:44 PM CDT | Severe Thunderstorm Warning | GRB | Marinette | 31 min |
| Jun 18, 3:47 PM CDT | Special Marine Warning | GRB | 88 min | |
| Jun 18, 3:48 PM CDT | Severe Thunderstorm Warning | GRB | Marathon, Shawano | 42 min |
| Jun 18, 3:55 PM CDT | Severe Thunderstorm Warning | GRB | Outagamie, Portage, Shawano, Waupaca | 41 min |
| Jun 18, 3:58 PM CDT | Severe Thunderstorm Warning | GRB | Marinette, Oconto | 47 min |
| Jun 18, 4:07 PM CDT | Severe Thunderstorm Warning | GRB | Langlade, Menominee, Shawano | 20 min |
| Jun 18, 4:19 PM CDT | Tornado Warning | GRB | Marinette, Oconto | 26 min |
| Jun 18, 4:45 PM CDT | Special Marine Warning | GRB | 90 min | |
| Jun 18, 5:12 PM CDT | Special Marine Warning | GRB | 75 min | |
| Jun 18, 5:30 PM CDT | Severe Thunderstorm Warning | GRB | Brown, Calumet, Manitowoc, Outagamie, Winnebago | 45 min |
| Jun 18, 5:31 PM CDT | Special Marine Warning | GRB | 89 min | |
| Jun 18, 6:08 PM CDT | Severe Thunderstorm Warning | GRB | Calumet, Manitowoc, Winnebago | 37 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 2012Every severe thunderstorm warning in 2012
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.