Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 5, NWS Green Bay, WI

April 15, 1994Winnebago County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at Apr 15, 1994, 2:10 AM CDT for Winnebago County, Wisconsin. It was in force for 35 min.

The area

The counties it named.

The facts

Issued: Apr 15, 1994, 2:10 AM CDT (07:10 UTC)
Expired: Apr 15, 1994, 2:45 AM CDT
In force: 35 min
Issued by: NWS Green Bay, WI
Area: Whole counties

County Winnebago County, WI

The nearest sounding before it

Minneapolis, MN (KSTC), launched 00:00Z, 7.2 hours before the alert went out and 403 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2199 m above ground
0-6 km bulk shear: 62 kt
0-1 km storm-relative helicity: 52 m²/s²
0-3 km storm-relative helicity: 178 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Apr 15, 12:03 AM CDT, 2 hours 7 minutes before

WIZ050-150700-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
1200 AM CDT FRI APR 15 1994

...STRONG THUNDERST0RMS HEADED TOWARD MANITOWOC COUNTY...

AT 1150 PM...STRONG THUNDERSTORMS WERE LOCATED ABOUT 30 MILES
SOUTHWEST OF MANITOWOC OR NEAR PLYMOUTH IN SHEBOYGAN COUNTY.  THESE
STORMS WERE MOVING TO THE NORTH AROUND 40 MPH AND WILL BE MOVING INTO
THE CITY OF MANITOWOC BY 1 AM CDT.

THESE STORMS LIKELY CONTAIN HEAVY RAINS...STROBNG WINDS...SMALL HAIL
AND DEADLY LIGHTNING.

IF THREATENING WEATHER APPROACHES...SEEK SAFE SHELTER INDOORS.
BOATERS ON AREA LAKES AND THE LAKESHORE AREA SHOULD HEAD FOR
SHORE IMMEDIATELY.

ISAACSON

Special weather statement, Apr 15, 12:49 AM CDT, 1 hour 21 minutes before

WIZ037-150750-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
1250 AM CDT FRI APR 15 1994

...STRONG THUNDERSTORMS APPROACHING WAUPACA COUNTY...

AT 1245 AM...WEATHER RADAR INDICATED A CLUSTER OF STRONG THUNDERSTORMS
45 MILES SOUTHWEST OF APPLETON IN CENTRAL WAUSHARA COUNTY NEAR WILD
ROSE.  THESE STORMS WERE MOVING TO THE NORTH AROUND 45 MPH.  THESE
STORMS ARE EXPECTED TO AFFECT THE CITY OF WAUPACA BY 115 AM CDT.

THESE STORMS LIKELY CONTAIN VERY HEAVY RAINS...SMALL HAIL...GUSTY WINDS
AND DEADLY LIGHTNING.

IF THREATENING WEATHER APPROACHES...SEEK SAFE INDOOR SHELTER.  BOATERS
ON AREA LAKES SHOULD HEAD FOR SHORE IMMEDIATELY.

ISAACSON

Special weather statement, Apr 15, 1:26 AM CDT, 44 minutes before

WIZ020>022-031-037>040-048>050-150830-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
125 AM CDT FRI APR 15 1994

...NUMEROUS STRONG THUNDERSTORMS IN NORTHEAST WISCONSIN...

AT 120 AM...WEATHER SERVICE RADAR INDICATED NUMEROUS STRONG
THUNDERSTORMS ACROSS NORTHEAST WISCONSIN.  THE STRONGEST STORMS
WERE LOCATED FROM GREEN BAY TO 50 MILES WEST OF GREEN BAY IN NORTHERN
WAUPACA COUNTY...AND FROM 35 MILES WEST OF APPLETON NEAR WAUPACA TO
OSHKOSH.

THESE STORMS WERE MOVING RAPIDLY TO THE NORTH AROUND 45 MPH AND LIKELY
CONTAIN VERY HEAVY RAINS...SMALL HAIL...DEADLY LIGHTNING AND GUSTY
WINDS.

IF THREATENING WEATHER APPROACHES...SEEK SAFE INDOOR SHELTER.  BOATERS
ON AREA LAKES SHOULD REMAIN ON SHORE UNTIL THESE STORMS PASS.

ISAACSON

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 15, 12:06 AM CDT	Severe Thunderstorm Warning	GRB	Columbia	54 min
Apr 15, 12:16 AM CDT	Severe Thunderstorm Warning	GRB	Rock	59 min
Apr 15, 12:39 AM CDT	Severe Thunderstorm Warning	GRB	Juneau	66 min
Apr 15, 12:55 AM CDT	Severe Thunderstorm Warning	GRB	Dane	65 min
Apr 15, 2:30 AM CDT	Severe Thunderstorm Warning	GRB	Dane, Iowa	45 min
Apr 15, 2:56 AM CDT	Severe Thunderstorm Warning	GRB	Green	49 min
Apr 15, 3:08 AM CDT	Severe Thunderstorm Warning	GRB	Columbia	52 min
Apr 15, 3:22 AM CDT	Severe Thunderstorm Warning	GRB	Dane	53 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1994 Every severe thunderstorm warning in 1994

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.