Alert archive / Wisconsin / Tornado Warnings in 2019
Tornado Warning 5, NWS Green Bay, WI
NWS Green Bay, WI issued this tornado warning at Jul 20, 2019, 10:46 AM CDT for Portage County, Waupaca County, Wisconsin. It was in force for 29 min. 6 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, 10:46 AM CDT (15:46 UTC)
- Expired
- Jul 20, 2019, 11:15 AM CDT
- In force
- 29 min
- Issued by
- NWS Green Bay, WI
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Portage County, WI, Waupaca County, WI
The radar
The Green Bay radar (KGRB), 77 km from the middle of the area, began a volume at 15:46 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 20, 10:55 AM CDT | TORNADO | 1 E Waupaca, WI | TORNADO FORMED NEAR WAUPACA AIRPORT AND MOVED EAST-NORTHEAST TO WHITE LAKE. DAMAGE TO SEVERAL BUILDINGS, CORN FIELD, AND TREES. RATED EF0. |
| Jul 20, 11:00 AM CDT | TSTM WND DMG | Scandinavia, WI | TREES DOWN ON HOMES, ROADS, WIRES ACROSS THE TOWN. TIME ESTIMATED |
| Jul 20, 11:01 AM CDT | TSTM WND DMG | Amherst, WI | DEBRIS FLYING ACROSS ROAD. ESTIMATED 80 MPH WINDS. |
| Jul 20, 11:05 AM CDT | TSTM WND DMG | Iola, WI | LARGE TREE DOWN, ABOUT ONE FOOT IN DIAMETER. |
| Jul 20, 11:05 AM CDT | TORNADO | 3 Ssw New London, WI | TORNADO ON THE GROUND SOUTH OF NEW LONDON. TORNADO CROSSED FROM WAUPACA INTO OUTAGAMIE COUNTY. TREES AND A FEW POWER POLES SNAPPED. PARTIAL DAMAGE TO SIDING AND ROOFS. PRELIMINARY RATING-EF1. |
| Jul 20, 11:10 AM CDT | TSTM WND DMG | New London, WI | TIME ESTIMATED BY RADAR. NUMEROUS TREES DOWN WITHIN THE TOWN. MAJOR DAMAGE REPORTED. MANY STREETS COVERED WITH DOWNED TREES AND LIMBS. POWER IS OUT. |
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 |
|---|---|---|---|
| Jul 20, 9:05 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 3.8 hours before the alert went out and 78 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
- 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
The text
As transmitted.
010
WFUS53 KGRB 201546
TORGRB
WIC097-135-201615-
/O.NEW.KGRB.TO.W.0005.190720T1546Z-190720T1615Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Green Bay WI
1046 AM CDT Sat Jul 20 2019
The National Weather Service in Green Bay has issued a
* Tornado Warning for...
East central Portage County in central Wisconsin...
Central Waupaca County in northeastern Wisconsin...
* Until 1115 AM CDT.
* At 1046 AM CDT, severe thunderstorms capable of producing both
tornadoes and extensive straight line wind damage were located near
Amherst, or 9 miles northwest of Waupaca, moving east at 65 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
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.
* These dangerous storms will be near...
Waupaca around 1055 AM CDT.
New London around 1110 AM CDT.
Other locations impacted by this tornadic thunderstorm include
Fitzgerald Corners, Sheridan, Ogdensburg, Royalton, Northport,
Amherst Junction, Iola, Symco, Scandinavia and Manawa.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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 4434 8927 4446 8936 4456 8874 4432 8874
TIME...MOT...LOC 1546Z 261DEG 56KT 4441 8923
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
EB2 follow-up statements
580
WWUS53 KGRB 201559
SVSGRB
Severe Weather Statement
National Weather Service Green Bay WI
1059 AM CDT Sat Jul 20 2019
WIC097-201608-
/O.CAN.KGRB.TO.W.0005.000000T0000Z-190720T1615Z/
Portage WI-
1059 AM CDT Sat Jul 20 2019
...THE TORNADO WARNING FOR EAST CENTRAL PORTAGE COUNTY IS
CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. The warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 400 PM CDT for
northeastern Wisconsin.
LAT...LON 4433 8903 4449 8916 4456 8874 4432 8874
TIME...MOT...LOC 1558Z 261DEG 56KT 4444 8896
$$
WIC135-201615-
/O.CON.KGRB.TO.W.0005.000000T0000Z-190720T1615Z/
Waupaca WI-
1059 AM CDT Sat Jul 20 2019
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1115 AM CDT FOR CENTRAL
WAUPACA COUNTY...
At 1058 AM CDT, a severe squall line capable of producing both
tornadoes and extensive straight line wind damage was located 8 miles
northeast of Waupaca, moving east at 65 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
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.
These dangerous storms will be near...
New London around 1105 AM CDT.
Other locations impacted by this tornadic thunderstorm include
Fitzgerald Corners, Ogdensburg, Royalton, Northport, Symco,
Scandinavia, Manawa, Iola and Weyauwega.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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 4433 8903 4449 8916 4456 8874 4432 8874
TIME...MOT...LOC 1558Z 261DEG 56KT 4444 8896
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
EB822
WWUS53 KGRB 201608
SVSGRB
Severe Weather Statement
National Weather Service Green Bay WI
1108 AM CDT Sat Jul 20 2019
WIC135-201615-
/O.EXP.KGRB.TO.W.0005.000000T0000Z-190720T1615Z/
Waupaca WI-
1108 AM CDT Sat Jul 20 2019
...THE TORNADO WARNING FOR CENTRAL WAUPACA COUNTY WILL EXPIRE AT 1115
AM CDT...
The Tornado Warning that was previously in effect has been reissued
and is in effect until 1130 am CDT. Please refer to that bulletin
for the latest severe weather information.
The tornadoes are embedded in a fast moving squall. Take cover
immediately as this system is moving at 70 mph. This is a dangereous
situation.
LAT...LON 4433 8903 4449 8916 4456 8874 4432 8874
TIME...MOT...LOC 1605Z 261DEG 56KT 4445 8884
$$
EBThe office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 19, 7:17 PM CDT | Severe Thunderstorm Warning | GRB | Langlade, Lincoln, Marathon, Portage, Wood | 73 min |
| Jul 19, 7:25 PM CDT | Severe Thunderstorm Warning | GRB | Forest, Langlade, Lincoln, Oneida | 65 min |
| Jul 19, 7:50 PM CDT | Flash Flood Warning | GRB | Oneida | 115 min |
| Jul 19, 8:12 PM CDT | Severe Thunderstorm Warning | GRB | Forest, Langlade, Lincoln, Marathon, Marinette, Menominee and 3 more | 63 min |
| Jul 19, 8:20 PM CDT | Special Marine Warning | GRB | 115 min | |
| Jul 19, 8:23 PM CDT | Severe Thunderstorm Warning | GRB | Marathon, Menominee, Portage, Shawano, Waupaca, Wood | 52 min |
| Jul 19, 8:26 PM CDT | Tornado Warning | GRB | Marathon, Portage, Shawano, Waupaca | 34 min |
| Jul 19, 8:57 PM CDT | Tornado Warning | GRB | Outagamie, Shawano, Waupaca | 33 min |
| Jul 19, 9:08 PM CDT | Severe Thunderstorm Warning | GRB | Brown, Door, Kewaunee, Marinette, Oconto, Shawano | 67 min |
| Jul 19, 9:10 PM CDT | Severe Thunderstorm Warning | GRB | Brown, Calumet, Kewaunee, Outagamie, Portage, Shawano and 4 more | 50 min |
| Jul 19, 9:31 PM CDT | Areal Flood Advisory | GRB | Portage, Waupaca, Wood | 111 min |
| Jul 19, 9:40 PM CDT | Severe Thunderstorm Warning | GRB | Brown, Calumet, Kewaunee, Manitowoc, Outagamie, Waushara and 1 more | 50 min |
| Jul 19, 9:44 PM CDT | Areal Flood Advisory | GRB | Brown, Outagamie | 101 min |
| Jul 19, 10:09 PM CDT | Special Marine Warning | GRB | 111 min | |
| Jul 19, 10:17 PM CDT | Severe Thunderstorm Warning | GRB | Door | 43 min |
| Jul 19, 10:25 PM CDT | Areal Flood Advisory | GRB | Calumet, Manitowoc, Waushara, Winnebago | 2 hr |
| Jul 19, 10:32 PM CDT | Severe Thunderstorm Warning | GRB | Calumet, Manitowoc, Winnebago | 43 min |
| Jul 19, 10:56 PM CDT | Special Weather Statement | GRB | Winnebago | 34 min |
| Jul 20, 8:00 AM CDT | Flash Flood Watch | GRB | Brown, Calumet, Kewaunee, Manitowoc, Marathon, Outagamie and 6 more | 7 hr |
| Jul 20, 8:57 AM CDT | Special Weather Statement | GRB | Kewaunee | 33 min |
| Jul 20, 9:51 AM CDT | Severe Thunderstorm Warning | GRB | Marathon, Portage, Wood | 54 min |
| Jul 20, 9:53 AM CDT | Flash Flood Warning | GRB | Marathon, Portage, Shawano, Waupaca, Waushara, Wood | 5 hr |
| Jul 20, 10:34 AM CDT | Severe Thunderstorm Warning | GRB | Marathon, Menominee, Outagamie, Portage, Shawano, Waupaca and 3 more | 56 min |
| Jul 20, 10:44 AM CDT | Special Marine Warning | GRB | 2 hr | |
| Jul 20, 10:48 AM CDT | Flash Flood Warning | GRB | Brown, Calumet, Door, Kewaunee, Manitowoc, Menominee and 6 more | 4 hr |
| Jul 20, 11:03 AM CDT | Tornado Warning | GRB | Outagamie, Waupaca | 27 min |
| Jul 20, 11:21 AM CDT | Severe Thunderstorm Warning | GRB | Brown, Calumet, Kewaunee, Manitowoc, Outagamie, Shawano and 3 more | 54 min |
| Jul 20, 11:22 AM CDT | Tornado Warning | GRB | Brown, Outagamie | 38 min |
| Jul 20, 11:35 AM CDT | Severe Thunderstorm Warning | GRB | Menominee, Oconto, Shawano | 40 min |
| Jul 20, 11:47 AM CDT | Tornado Warning | GRB | Brown, Kewaunee, Manitowoc | 43 min |
| Jul 20, 11:58 AM CDT | Severe Thunderstorm Warning | GRB | Door | 62 min |
| Jul 20, 12:14 PM CDT | Severe Thunderstorm Warning | GRB | Brown, Kewaunee, Manitowoc | 31 min |
| Jul 20, 12:42 PM CDT | Special Marine Warning | GRB | 56 min | |
| Jul 20, 12:55 PM CDT | Severe Thunderstorm Warning | GRB | Door | 24 min |
| Jul 20, 1:25 PM CDT | Special Weather Statement | GRB | Portage, Shawano, Waupaca, Waushara | 65 min |
| Jul 20, 2:04 PM CDT | Special Weather Statement | GRB | Brown, Calumet, Menominee, Oconto, Outagamie, Shawano and 3 more | 56 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.