Alert archive / Wisconsin / Flash Flood Warnings in 1993

Flash Flood Warning 12, NWS Green Bay, WI

July 5, 1993Columbia County, Dane County, Wisconsin

NWS Green Bay, WI issued this flash flood warning at Jul 5, 1993, 6:50 PM CDT for Columbia County, Dane County, Wisconsin. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Jul 5, 1993, 6:50 PM CDT (23:50 UTC)
Expired
Jul 5, 1993, 10:00 PM CDT
In force
3 hr
Issued by
NWS Green Bay, WI
Area
Whole counties

Counties Columbia County, WI, Dane County, WI

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 11.8 hours before the alert went out and 169 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-pSkew-T log-p diagram, Green Bay/Straub, WI at 12:00Z on 1993-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 64 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Green Bay/Straub, WI at 12:00Z on 1993-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 59 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
64 J/kg
Mixed-layer CIN
-122 J/kg
Mixed-layer LCL
859 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
59 m²/s²
0-3 km storm-relative helicity
128 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

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 flash flood 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, Jul 5, 3:09 PM CDT, 3 hours 41 minutes before
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Special weather statement, Jul 5, 4:10 PM CDT, 2 hours 40 minutes before
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Special weather statement, Jul 5, 6:22 PM CDT, 28 minutes before
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Special weather statement, Jul 5, 6:23 PM CDT, 27 minutes before
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Special weather statement, Jul 5, 6:49 PM CDT, 1 minute before
WIZ012-060045-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
649 PM CDT MON JUL 5 1993

...STRONG THUNDERSTORMS MOVING ACROSS WINNEBAGO COUNTY...

AT 645 PM...A STRONG THUNDERSTORM WAS INDICATED BY RADAR ABOUT 10
MILES WEST OF OSHKOSH OR NEAR WINNECONNE.  THESE STORMS WERE MOVING
TO THE NORTHEAST AROUND 45 MPH AND WILL BE MOVING INTO THE OSHKOSH
AREA BY 7 PM AND INTO THE NEENAH/MENASHA AREA BY 715 PM

THESE STORMS WILL PRODUCE TORRENTIAL RAINS...DANGEROUS LIGHTNING...
GUSTY WINDS AND SMALL HAIL.

IF THREATENING WEATHER APPROACHES...SEEK SAFE SHELTER INDOORS.
BOATERS ON AREA LAKES SHOULD SEEK SAFE HARBOR IMMEDIATELY.

ISAACSON
Special weather statement, Jul 5, 6:50 PM CDT, 0 minutes before
WIZ012-060045-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
649 PM CDT MON JUL 5 1993

...STRONG THUNDERSTORMS MOVING ACROSS WINNEBAGO COUNTY...

AT 645 PM...A STRONG THUNDERSTORM WAS INDICATED BY RADAR ABOUT 10
MILES WEST OF OSHKOSH OR NEAR WINNECONNE.  THESE STORMS WERE MOVING
TO THE NORTHEAST AROUND 45 MPH AND WILL BE MOVING INTO THE OSHKOSH
AREA BY 7 PM AND INTO THE NEENAH/MENASHA AREA BY 715 PM

THESE STORMS WILL PROD UCE TORRENTIAL RAINS...DANGEROUS LIGHTNING...
GUSTY WINDS AND SMALL HAIL.

IF THREATENING WEATHER APPROACHES...SEEK SAFE SHELTER INDOORS.
BOATERS ON AREA LAKES SHOULD SEEK SAFE HARBOR IMMEDIATELY.

ISAACSON

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 5, 4:37 PM CDTFlash Flood WarningGRBOutagamie, Winnebago8 hr

Nearby

Flash Flood Warnings in Wisconsin, 1993Every flash flood warning in 1993

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.