Alert archive / Wisconsin / Tornado Warnings in 2019

Tornado Warning 7, NWS Green Bay, WI

July 20, 2019Brown County, Outagamie County, Wisconsin

NWS Green Bay, WI issued this tornado warning at Jul 20, 2019, 11:22 AM CDT for Brown County, Outagamie County, Wisconsin. It was in force for 38 min. 12 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 20, 2019, 11:22 AM CDT (16:22 UTC)
Expired
Jul 20, 2019, 12:00 PM CDT
In force
38 min
Issued by
NWS Green Bay, WI
Area
Storm-based polygon
Tornado
Observed
Hail
0.75 in

Counties Brown County, WI, Outagamie County, WI

The radar

The Green Bay radar (KGRB), 23 km from the middle of the area, began a volume at 16:24 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

TimeReportWhereRemark
Jul 20, 11:22 AM CDTTSTM WND GST 60Appleton, WI
Jul 20, 11:22 AM CDTTORNADO2 Ne Greenville, WITORNADO ON THE GROUND JUST NORTHEAST OF GREENVILLE. PARTIAL LOSS OF ROOF COVERING AND SIDING OF HOUSE. LARGE TREE LIMBS BROKEN AND POWER POLE BROKEN. PRELIMINARY RATING-EF0.
Jul 20, 11:23 AM CDTTSTM WND DMGAppleton, WI2 TREES UPROOTED AND HOUSE DAMAGE.
Jul 20, 11:25 AM CDTFUNNEL CLOUDAppleton, WI
Jul 20, 11:25 AM CDTTSTM WND GST 67Appleton, WIMEASURED GUST AT PERKINS AND COLLEGE AVENUE.
Jul 20, 11:28 AM CDTTSTM WND DMGAppleton, WITREE LIMBS DOWN
Jul 20, 11:36 AM CDTTORNADO3 Ene Kaukauna, WITORNADO ON THE GROUND NEAR WRIGHTSTOWN. LOSS OF METAL ROOFING ON BARN AND LOSS OF THE TOP OF A SILO. PRELIMINARY RATING-EF0
Jul 20, 11:37 AM CDTTSTM WND DMG4 Ne Kaukauna, WIMULTIPLE TREES DOWN. DELAYED REPORT. TIME ESTIMATED BY RADAR.
Jul 20, 11:44 AM CDTTSTM WND GST 67Wrightstown, WIMULTIPLE LARGE TREES DOWN. LOCATED NEAR THE MIDDLE OF THE CITY.
Jul 20, 11:45 AM CDTTSTM WND DMGFreedom, WILARGE TREE BRANCHES DOWN ON GARVEY AVE. TIME ESTIMATED BY RADAR.
Jul 20, 11:59 AM CDTTSTM WND GST 59Green Bay, WI
Jul 20, 12:05 PM CDTTSTM WND DMGGreen Bay, WISIX TO EIGHT INCH OAK TREE BRANCH DOWN ON BEECH TREE AND WEST POINT ROAD. REPORT VIA SOCIAL MEDIA.

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.

IssuedProductOfficeLasted
Jul 20, 9:05 AM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 4.4 hours before the alert went out and 22 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.

Skew-T log-pSkew-T log-p diagram, Green Bay/Straub, WI at 12:00Z on 2019-07-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2357 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Green Bay/Straub, WI at 12:00Z on 2019-07-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 240 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
2357 J/kg
Mixed-layer CIN
-173 J/kg
Mixed-layer LCL
706 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
240 m²/s²
0-3 km storm-relative helicity
254 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.9

Open this sounding in Storm Lab

The text

As transmitted.

969 
WFUS53 KGRB 201622
TORGRB
WIC009-087-201700-
/O.NEW.KGRB.TO.W.0007.190720T1622Z-190720T1700Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Green Bay WI
1122 AM CDT Sat Jul 20 2019

The National Weather Service in Green Bay has issued a

* Tornado Warning for...
  Western Brown County in northeastern Wisconsin...
  Outagamie County in northeastern Wisconsin...

* Until noon CDT.
    
* At 1121 AM CDT, a tornado producing storm was located 9 miles
  southwest of Black Creek, or 9 miles northwest of Appleton, moving
  east at 50 mph.

  HAZARD...Damaging tornado.

  SOURCE...Radar confirmed tornado.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This tornadic storm will be near...
  Appleton and Black Creek around 1130 AM CDT.
  Kaukauna and Little Chute around 1135 AM CDT.
  Green Bay around 1155 AM CDT.
  Bellevue Town around 1200 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Mackville, Little Rapids, Wayside, Morrison, De Pere, Freedom,
Lambeau Field, Ledgeview, Hobart and Leo Frigo Bridge.

People at Downtown Green Bay should seek safe shelter immediately!

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 4425 8851 4442 8873 4464 8797 4424 8789
TIME...MOT...LOC 1621Z 250DEG 42KT 4435 8854 

TORNADO...OBSERVED
HAIL...<.75IN

$$

EB
2 follow-up statements
095 
WWUS53 KGRB 201638
SVSGRB

Severe Weather Statement
National Weather Service Green Bay WI
1138 AM CDT Sat Jul 20 2019

WIC009-087-201700-
/O.CON.KGRB.TO.W.0007.000000T0000Z-190720T1700Z/
Brown WI-Outagamie WI-
1138 AM CDT Sat Jul 20 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL NOON CDT FOR WESTERN
BROWN AND OUTAGAMIE COUNTIES...
        
At 1134 AM CDT, a radar confirmed tornado was located 2 miles 
southeast of Black Creek or near Freedpm, or about 10 miles 
northeast of Appleton, moving east at 50 mph.  

HAZARD...Damaging tornado.

SOURCE...Radar confirmed tornado.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This tornado will be near...
  Green Bay and Bellevue Town by 1150 AM CDT.

Other locations impacted by this tornadic thunderstorm include
Mackville, Little Rapids, Wayside, Morrison, De Pere, Freedom,
Lambeau Field, Ledgeview, Hobart and Leo Frigo Bridge.

People at Downtown Green Bay should seek safe shelter immediately!

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 4425 8851 4442 8873 4464 8797 4424 8789
TIME...MOT...LOC 1634Z 250DEG 42KT 4440 8833 

TORNADO...OBSERVED
HAIL...<.75IN

$$

EB
782 
WWUS53 KGRB 201656
SVSGRB

Severe Weather Statement
National Weather Service Green Bay WI
1156 AM CDT Sat Jul 20 2019

WIC009-087-201702-
/O.EXP.KGRB.TO.W.0007.000000T0000Z-190720T1700Z/
Brown WI-Outagamie WI-
1156 AM CDT Sat Jul 20 2019

...THE TORNADO WARNING FOR WESTERN BROWN AND OUTAGAMIE COUNTIES WILL
EXPIRE AT NOON CDT...
    
The Tornado Warning that was previously in effect has been reissued 
for Brown, northern Manitowoc and Kewaunee counties until 1230 pm 
CDT. Please see that bulletin for details. 

Widespread damaging straight line winds and embedded tornadoes are 
likely with this squall line. This is a dangerous situation! Please 
take shelter immediately!!!


LAT...LON 4425 8851 4442 8873 4464 8797 4424 8789
TIME...MOT...LOC 1652Z 250DEG 42KT 4447 8806 

$$

EB

The office that day

Everything else NWS Green Bay, WI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 19, 7:17 PM CDTSevere Thunderstorm WarningGRBLanglade, Lincoln, Marathon, Portage, Wood73 min
Jul 19, 7:25 PM CDTSevere Thunderstorm WarningGRBForest, Langlade, Lincoln, Oneida65 min
Jul 19, 7:50 PM CDTFlash Flood WarningGRBOneida115 min
Jul 19, 8:12 PM CDTSevere Thunderstorm WarningGRBForest, Langlade, Lincoln, Marathon, Marinette, Menominee and 3 more63 min
Jul 19, 8:20 PM CDTSpecial Marine WarningGRB115 min
Jul 19, 8:23 PM CDTSevere Thunderstorm WarningGRBMarathon, Menominee, Portage, Shawano, Waupaca, Wood52 min
Jul 19, 8:26 PM CDTTornado WarningGRBMarathon, Portage, Shawano, Waupaca34 min
Jul 19, 8:57 PM CDTTornado Warning Tornado observedGRBOutagamie, Shawano, Waupaca33 min
Jul 19, 9:08 PM CDTSevere Thunderstorm WarningGRBBrown, Door, Kewaunee, Marinette, Oconto, Shawano67 min
Jul 19, 9:10 PM CDTSevere Thunderstorm WarningGRBBrown, Calumet, Kewaunee, Outagamie, Portage, Shawano and 4 more50 min
Jul 19, 9:31 PM CDTAreal Flood AdvisoryGRBPortage, Waupaca, Wood111 min
Jul 19, 9:40 PM CDTSevere Thunderstorm WarningGRBBrown, Calumet, Kewaunee, Manitowoc, Outagamie, Waushara and 1 more50 min
Jul 19, 9:44 PM CDTAreal Flood AdvisoryGRBBrown, Outagamie101 min
Jul 19, 10:09 PM CDTSpecial Marine WarningGRB111 min
Jul 19, 10:17 PM CDTSevere Thunderstorm WarningGRBDoor43 min
Jul 19, 10:25 PM CDTAreal Flood AdvisoryGRBCalumet, Manitowoc, Waushara, Winnebago2 hr
Jul 19, 10:32 PM CDTSevere Thunderstorm WarningGRBCalumet, Manitowoc, Winnebago43 min
Jul 19, 10:56 PM CDTSpecial Weather StatementGRBWinnebago34 min
Jul 20, 8:00 AM CDTFlash Flood WatchGRBBrown, Calumet, Kewaunee, Manitowoc, Marathon, Outagamie and 6 more7 hr
Jul 20, 8:57 AM CDTSpecial Weather StatementGRBKewaunee33 min
Jul 20, 9:51 AM CDTSevere Thunderstorm WarningGRBMarathon, Portage, Wood54 min
Jul 20, 9:53 AM CDTFlash Flood WarningGRBMarathon, Portage, Shawano, Waupaca, Waushara, Wood5 hr
Jul 20, 10:34 AM CDTSevere Thunderstorm WarningGRBMarathon, Menominee, Outagamie, Portage, Shawano, Waupaca and 3 more56 min
Jul 20, 10:44 AM CDTSpecial Marine WarningGRB2 hr
Jul 20, 10:46 AM CDTTornado WarningGRBPortage, Waupaca29 min
Jul 20, 10:48 AM CDTFlash Flood WarningGRBBrown, Calumet, Door, Kewaunee, Manitowoc, Menominee and 6 more4 hr
Jul 20, 11:03 AM CDTTornado WarningGRBOutagamie, Waupaca27 min
Jul 20, 11:21 AM CDTSevere Thunderstorm WarningGRBBrown, Calumet, Kewaunee, Manitowoc, Outagamie, Shawano and 3 more54 min
Jul 20, 11:35 AM CDTSevere Thunderstorm WarningGRBMenominee, Oconto, Shawano40 min
Jul 20, 11:47 AM CDTTornado WarningGRBBrown, Kewaunee, Manitowoc43 min
Jul 20, 11:58 AM CDTSevere Thunderstorm WarningGRBDoor62 min
Jul 20, 12:14 PM CDTSevere Thunderstorm WarningGRBBrown, Kewaunee, Manitowoc31 min
Jul 20, 12:42 PM CDTSpecial Marine WarningGRB56 min
Jul 20, 12:55 PM CDTSevere Thunderstorm WarningGRBDoor24 min
Jul 20, 1:25 PM CDTSpecial Weather StatementGRBPortage, Shawano, Waupaca, Waushara65 min
Jul 20, 2:04 PM CDTSpecial Weather StatementGRBBrown, Calumet, Menominee, Oconto, Outagamie, Shawano and 3 more56 min

Nearby

Tornado Warnings in Wisconsin, 2019Every tornado warning in 2019Tornadoes in 2019

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.