Alert archive / Wisconsin / Tornado Warnings in 1998
Tornado Warning 8, NWS Green Bay, WI
NWS Green Bay, WI issued this tornado warning at Aug 23, 1998, 4:19 PM CDT for Calumet County, Winnebago County, Wisconsin. It was in force for 56 min. 9 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Aug 23, 1998, 4:19 PM CDT (21:19 UTC)
- Expired
- Aug 23, 1998, 5:15 PM CDT
- In force
- 56 min
- Issued by
- NWS Green Bay, WI
- Area
- Whole counties
Counties Calumet County, WI, Winnebago County, WI
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 23, 4:22 PM CDT | Tornado F0 | Menasha, WI | |
| Aug 23, 4:29 PM CDT | Hail 2 | Appleton, WI | |
| Aug 23, 4:46 PM CDT | Hail 1 | Forest Jct, WI | |
| Aug 23, 4:50 PM CDT | Hail 1.5 | Appleton, WI | |
| Aug 23, 4:50 PM CDT | Hail 1.5 | Brillion, WI | |
| Aug 23, 4:54 PM CDT | Thunderstorm Wind 50 | Brillion, WI | |
| Aug 23, 4:59 PM CDT | Thunderstorm Wind 52 | Brillion, WI | |
| Aug 23, 5:00 PM CDT | Hail 2 | Sherwood, WI | |
| Aug 23, 5:04 PM CDT | Hail 0.75 | Hilbert, WI |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 23, 3:15 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 9.3 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
- 852 J/kg
- Mixed-layer CIN
- -92 J/kg
- Mixed-layer LCL
- 839 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 177 m²/s²
- 0-3 km storm-relative helicity
- 190 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.3
The text
As transmitted, in the capitals the NWS used until 2016.
413 WFUS1 KGRB 232120 RRA TORGRB WIC015-139-232215- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE GREEN BAY WI 419 PM CDT SUN AUG 23 1998 THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A * TORNADO WARNING FOR... CALUMET COUNTY IN EAST-CENTRAL WISCONSIN NORTHERN WINNEBAGO COUNTY IN EAST-CENTRAL WISCONSIN * UNTIL 515 PM CDT * AT 416 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A DEVELOPING TORNADO 5 MILES WEST OF APPLETON...NEAR GREENVILLE. MOVEMENT WAS SOUTHEAST AT 35 MILES AN HOUR. ANOTHER SEVERE STORMS WAS LOCATED OVER NEW LONDON...FOLLOWING A SIMILAR TRACK. * THE DANGEROUS STORM WILL BE NEAR... APPLETON BY 430 PM MENASHA BY 430 PM DARBOY BY 430 PM NORTHERN LAKE WINNEBAGO BY 435 PM SHERWOOD BY 445 PM IF YOU ARE IN THE PATH OF A TORNADO...MOVE TO THE LOWEST LEVEL OF A STURDY BUILDING. THE PARENT THUNDERSTORM WILL ALSO PRODUCE HAIL TO 1 3/4 INCHES IN DIAMETER AND WINDS TO 60 MPH. JKL/JS
The office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 22, 8:54 PM CDT | Severe Thunderstorm Warning | GRB | Door, Kewaunee | 66 min |
| Aug 23, 2:56 PM CDT | Severe Thunderstorm Warning | GRB | Portage, Waupaca | 64 min |
| Aug 23, 3:34 PM CDT | Severe Thunderstorm Warning | GRB | Outagamie | 86 min |
| Aug 23, 3:43 PM CDT | Tornado Warning | GRB | Waupaca | 32 min |
| Aug 23, 3:55 PM CDT | Tornado Warning | GRB | Outagamie | 50 min |
| Aug 23, 4:13 PM CDT | Tornado Warning | GRB | Waupaca | 32 min |
| Aug 23, 4:45 PM CDT | Severe Thunderstorm Warning | GRB | Outagamie | 15 min |
| Aug 23, 4:49 PM CDT | Tornado Warning | GRB | Manitowoc | 56 min |
| Aug 23, 5:15 PM CDT | Severe Thunderstorm Warning | GRB | Calumet | 45 min |
| Aug 23, 5:15 PM CDT | Severe Thunderstorm Warning | GRB | Marinette | 30 min |
| Aug 23, 6:04 PM CDT | Severe Thunderstorm Warning | GRB | Door | 56 min |
| Aug 23, 6:19 PM CDT | Tornado Warning | GRB | Door | 41 min |
Nearby
Tornado Warnings in Wisconsin, 1998Every tornado warning in 1998Tornadoes in 1998
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.