Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 60, NWS Milwaukee, WI

July 16, 1997Ozaukee County, Washington County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Jul 16, 1997, 6:29 PM CDT for Ozaukee County, Washington County, Wisconsin. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 16, 1997, 6:29 PM CDT (23:29 UTC)
Expired: Jul 16, 1997, 8:30 PM CDT
In force: 2 hr
Issued by: NWS Milwaukee, WI
Area: Whole counties

Counties Ozaukee County, WI, Washington County, WI

The radar

The Milwaukee radar (KMKX), 61 km from the middle of the area, began a volume at 23:32 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 16, 5:30 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 11.5 hours before the alert went out and 122 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: 2398 J/kg
Mixed-layer CIN: -83 J/kg
Mixed-layer LCL: 948 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 112 m²/s²
0-3 km storm-relative helicity: 87 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMKE 162330 RRA
SVRMKE
WIC027-089-131-170130-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
629 PM CDT WED JUL 16 1997

* SEVERE THUNDERSTORM WARNING FOR
  DODGE COUNTY - SOUTHEASTERN WISCONSIN
  OZAUKEE COUNTY - SOUTHEASTERN WISCONSIN
  WASHINGTON COUNTY - SOUTHEASTERN WISCONSIN

* UNTIL 830 PM CDT
 
* SOME LOCATIONS AFFECTED
  WEST BEND       BY 640 PM
  PORT WASHINGTON BY 650 PM
  MAYVILLE        BY 640 PM

* AT 627 PM NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE
  OF SEVERE THUNDERSTORMS EXTENDED FROM GREEN LAKE TO FOND DU LAC
  TO MANITOWOC. THE LINE OF STORMS WAS MOVING SOUTHEAST AT 25 MPH.
  EXPECT DAMAGING WINDS WITH THESE STORMS.

THESE ARE DANGEROUS STORMS. IF YOU ARE IN ITS PATH YOU SHOULD
MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS.

A TORNADO WATCH IS ALSO IN EFFECT. REMEMBER...THUNDERSTORMS CAN AND
OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING.

TH/CG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 16, 5:51 PM CDT	Severe Thunderstorm Warning	MKX	Green Lake, Marquette	59 min
Jul 16, 5:51 PM CDT	Severe Thunderstorm Warning	MKX	Fond du Lac	59 min
Jul 16, 6:21 PM CDT	Severe Thunderstorm Warning	MKX	Sheboygan	59 min
Jul 16, 6:29 PM CDT	Severe Thunderstorm Warning	MKX	Dodge	2 hr
Jul 16, 6:34 PM CDT	Tornado Warning	MKX	Fond du Lac, Green Lake	46 min
Jul 16, 6:56 PM CDT	Severe Thunderstorm Warning	MKX	Columbia, Sauk	59 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1997 Every severe thunderstorm warning in 1997

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.