Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 39, NWS Green Bay, WI

July 31, 2003Waushara County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at Jul 31, 2003, 1:46 PM CDT for Waushara County, Wisconsin. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 31, 2003, 1:46 PM CDT (18:46 UTC)
Expired: Jul 31, 2003, 2:30 PM CDT
In force: 44 min
Issued by: NWS Green Bay, WI
Area: Counties, with a storm outline in the text

County Waushara County, WI

The radar

The Green Bay radar (KGRB), 113 km from the middle of the area, began a volume at 18:46 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.

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 31, 12:00 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 6.8 hours before the alert went out and 113 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 502 J/kg
Mixed-layer CIN: -116 J/kg
Mixed-layer LCL: 856 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 136 m²/s²
0-3 km storm-relative helicity: 135 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

843 
WUUS53 KGRB 311846
SVRGRB
WIC137-311930-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
145 PM CDT THU JUL 31 2003

THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WAUSHARA COUNTY IN WISCONSIN

* UNTIL 230 PM CDT

* AT 145 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A
  SEVERE THUNDERSTORM WITH STRONG WINDS AND HAIL. THE STORM WAS
  LOCATED NEAR RICHFORD. THAT PLACES IT 8 MILES WEST OF WAUTOMA. IT
  WAS MOVING NORTHEAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  HANCOCK AROUND 200 PM
  PLAINFIELD AROUND 210 PM

IF YOU ARE IN THE WARNED AREA...PREPARE FOR WINDS IN EXCESS OF 60
MPH...HAIL...AND DEADLY LIGHTNING. SEEK SHELTER IMMEDIATELY.

LAT...LON 4406 8961 4396 8941 4404 8893 4423 8943

$$

BRUSKY

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 30, 7:17 PM CDT	Flash Flood Warning	GRB	Brown, Calumet, Manitowoc	3 hr
Jul 30, 7:27 PM CDT	Flash Flood Warning	GRB	Winnebago	3 hr
Jul 30, 8:18 PM CDT	Flash Flood Warning	GRB	Brown, Outagamie	3 hr
Jul 31, 2:04 PM CDT	Severe Thunderstorm Warning	GRB	Langlade	41 min
Jul 31, 2:19 PM CDT	Severe Thunderstorm Warning	GRB	Manitowoc	41 min
Jul 31, 2:41 PM CDT	Severe Thunderstorm Warning	GRB	Langlade	49 min
Jul 31, 3:27 PM CDT	Severe Thunderstorm Warning	GRB	Langlade	48 min
Jul 31, 3:51 PM CDT	Severe Thunderstorm Warning	GRB	Oconto	54 min
Jul 31, 4:06 PM CDT	Severe Thunderstorm Warning	GRB	Marinette	54 min
Jul 31, 4:21 PM CDT	Special Marine Warning	GRB		54 min
Jul 31, 4:21 PM CDT	Special Marine Warning	GRB		54 min
Jul 31, 5:31 PM CDT	Special Marine Warning	GRB		74 min
Jul 31, 6:27 PM CDT	Severe Thunderstorm Warning	GRB	Langlade	33 min
Jul 31, 6:43 PM CDT	Special Marine Warning	GRB		47 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2003 Every severe thunderstorm warning in 2003

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.