Alert archive / Wisconsin / Flash Flood Warnings in 1993

Flash Flood Warning 1, NWS Green Bay, WI

June 17, 1993Winnebago County, Wisconsin

NWS Green Bay, WI issued this flash flood warning at Jun 17, 1993, 7:19 PM CDT for Winnebago County, Wisconsin. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Jun 17, 1993, 7:19 PM CDT (00:19 UTC)
Expired
Jun 17, 1993, 10:15 PM CDT
In force
3 hr
Issued by
NWS Green Bay, WI
Area
Whole counties

County Winnebago County, WI

The nearest sounding before it

Minneapolis, MN (KSTC), launched 00:00Z, 0.3 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-pSkew-T log-p diagram, Minneapolis, MN at 00:00Z on 1993-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 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, Minneapolis, MN at 00:00Z on 1993-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -2 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
546 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
-2 m²/s²
0-3 km storm-relative helicity
48 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.

000 
TTAA00 KGRB 180021
FFWGRB
WIC139-180315-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
719 PM CDT THU JUN 17 1993
 
THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A
FLOOD WARNING EFFECTIVE UNTIL 1015 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN EAST CENTRAL WISCONSIN
 
   ...WINNEBAGO COUNTY
 
...FLOODING IS REPORTED IN WINNEBAGO COUNTY...
 
AT 720 PM...FLOODING WAS REPORTED IN THE TOWN OF OMRO WHICH IS 10 MILES
WEST OF OSHKOSH.  OMRO CITY POLICE REPORTED WIDESPREAD FLOODING WAS
OCCURRING AND HEAVY RAINS CONTINUED.
 
 
 
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOODS AND FLASH FLOODS.  IF FLASH FLOODING IS
OBSERVEXD...ACT QUICKLY.  MOVE UP TO ESCAPE FLOOD WATERS.  DO
NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

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, Jun 17, 5:42 PM CDT, 1 hour 37 minutes before
WIZ012-172345-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
542 PM CDT THU JUN 17 1993

...INTENSE THUNDERSTORMS MOVING ACROSS WINNEBAGO COUNTY...

AT 540 PM...A LINE OF INTENSE THUNDERSTORMS WERE LOCATED FROM 35
MILES WEST OF OSHKOSH TO THE CITY OF OSHKOSH.  THESE STORMS WERE
PRODUCING TORRENTIAL RAINS AND FREQUENT DANGEROUS LIGHTNING.

THESE STORMS WERE MOVING TO THE EAST AT 30 MPH AND WILL CONTINUE
TO AFFECT THE CITY OF OSHKOSH UNTIL 630 PM...AND WILL MOVE ACROSS
LAKE WINNEBAGO INTO CALUMET COUNTY AND WILL AFFECT THE TOWNS OF
STOCKBRIDGE AND CHILTON BY 615 PM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 8 PM TONIGHT...
AND A FLASH FLOOD WATCH IS ALSO IN EFFECT TONIGHT.

IF THREATENING WEATHER APPROACHES...SEEK SAFE INDOOR SHELTER.  BOATERS
ON LAKE WINNEBAGO AND OTHER LAKES SHOULD HEAD FOR SAFE HARBOR
IMMEDIATELY.

ISAACSON
Special weather statement, Jun 17, 5:43 PM CDT, 1 hour 36 minutes before
WIZ012-172345-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
542 PM CDT THU JUN 17 1993

...INTENSE THUNDERSTORMS MOVING ACROSS WINNEBAGO COUNTY...

AT 540 PM...A LINE OF INTENSE THUNDERSTORMS WERE LOCATED FROM 35
MILES WEST OF OSHKOSH TO THE CITY OF OSHKOSH.  THESE STORMS WERE
PRODUCING TORRENTIAL RAINS AND FREQUENT DANGEROUS LIGHTNING.

THESE STORMS WERE MOVING TO THE EAST AT 30 MPH AND WILL CONTINUE
TO AFFECT THE CITY OF OSHKOSH UNTIL 630 PM...AND WILL MOVE ACROSS
LAKE WINNEBAGO INTO CALUMET COUNTY AND WILL AFFECT THE TOWNS OF
STOCKBRIDGE AND CHILTON BY 615 PM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 8 PM TONIGHT...
AND A FLASH FLOOD WATCH IS ALSO I*N EFFECT TONIGHT.

IF THREATENING WEATHER APPROACHES...SEEK SAFE INDOOR SHELTER.  BOATERS
ON LAKE WINNEBAGO AND OTHER LAKES SHOULD HEAD FOR SAFE HARBOR
IMMEDIATELY.

ISAACSON
Special weather statement, Jun 17, 6:00 PM CDT, 1 hour 19 minutes before
WIZ012-180000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
600 PM CDT THU JUN 17 1993

...STRONG THUNDERSTORMS MOVING INTO THE FOX VALLEY...

AT 600 PM...STRONG THUNDERSTORMS WERE LOCATED FROM 20 MILES SOUTHWEST
OF APPLETON NEAR LAKE POYGAN...TO 5 MILES SOUTH OF APPLETON NEAR THE
NEENAH/MENASHA AREAS.  THESE STORMS WERE MOVING TO THE NORTHEAST
AROUND 30 MPH AND WILL BE MOVING INTO THE CITIES OF APPLETON AND
NEW LONDON BY 615 PM.

THESE STORMS HAVE A HISTORY OF PRODUCING FREQUENT DANGEROUS
LIGHTNING...TORRENTIAL RAINS AND GUSTY WINDS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 8 PM AND A FLASH
FLOOD ALSO REMAINS IN EFFECT.

IF THREATENING WEATHER APPROACHES...TAKE COVER INDOORS.  BOATERS ON
AREA LAKES SHOULD REMAIN IN A SAFE HARBOR UNTIL THE STORMS HAVE PASSED.

ISAACSON
Special weather statement, Jun 17, 6:01 PM CDT, 1 hour 18 minutes before
WIZ012-180000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
600 PM CDT THU JUN 17 1993

...STRONG THUNDERSTORMS MOVING INTO THE FOX VALLEY...

AT 600 PM...STRONG THUNDERSTORMS WERE LOCATED FROM 20 MILES SOUTHWEST
OF APPLETON NEAR LAKE POYGAN...TO 5 MILES SOUTH OF APPLETON NEAR THE
NEENAH/MENASHA AREAS.  THESE STORMS WERE MOVING TO THE NORTHEAST
AROUND 30 MPH AND WILL BE MOVING INTO THE CITIES OF APPLETON AND
NEW LONDON BY 615 PM.

THESE STORMS HAVE A HISTORY OF PRODUCING FREQUENT DANGEROUS
LIGHTNING...TORRENTIAL RAINS AND GUSTY WINDS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 8 PM AND A FLASH
FLOOD ALSO REMAINS IN EFFECT.

IF THREATENING WEATHER APPRPOACHES...TAKE COVER INDOORS.  BOATERS ON
AREA LAKES SHOULD REMAIN IN A SAFE HARBOR UNTIL THE STORMS HAVE PASSED.

ISAACSON
Special weather statement, Jun 17, 6:44 PM CDT, 35 minutes before
WIZ008-180045-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
644 PM CDT THU JUN 17 1993

...STRONG THUNDERSTORMS MOVING INTO SOUTHERN BROWN COUNTY...

AT 640 PM...AN INTENSE THUNDERSTORM WITH VERY HEAVY RAINS AND
TORRENTIAL DOWNPOURS WAS LOCATED OVER SOUTHERN BROWN COUNTY
...15 MILES SOUTH OF GREEN BAY NEAR WRIGHTSTOWN AND GREENLEAF.

THIS STORM WAS MOVING TO THE NORTHEAST AT 30 MPH AND WILL BE
MOVING ACROSS DEPERE AND GREEN BAY BY 7 PM.

IF THREATENING WEATHER APPROACHES...SEEK SAFE INDOOR SHELTER.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 8 PM...AND A
FLASH FLOOD WATCH IS ALSO IN EFFECT TONIGHT.

ISAACSON
Special weather statement, Jun 17, 6:45 PM CDT, 34 minutes before
WIZ008-180045-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
644 PM CDT THU JUN 17 1993

...STRONG THUNDERSTORMS MOVING INTO SOUTHERN BROWN COUNTY...

AT 640 PM...AN INTENSE THUNDERSTORM WITH VERY HEAVY RAINS AND
TORRENTIAL DOWNPOURS WAS LOCATED OVER SOUTHERN BROWN COUNTY
...15 MILES SOUTH OF GREEN BAY NEAR WRIGHTSTOWN AND GREENLEAF.

THIS STORM WAS MOVING TO THE NORTHEAST AT 30 MPH AND WILL BE
MOVING ACROSS DEPERE AND GREEN BAY BY 7 PM.

IF THREATENING WEATHER APPROACHES...SEEK SAFE INDOOR SHELTER.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 8 PM...AND A
FLASH FLOOD WATCH IS ALSO IN EFFECT TONIGHT.

ISAACSON

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 17, 7:01 PM CDTSevere Thunderstorm WarningGRBGreen Lake, Marquette59 min
Jun 17, 8:04 PM CDTFlash Flood WarningGRBOutagamie3 hr
Jun 17, 8:24 PM CDTFlash Flood WarningGRBCalumet3 hr
Jun 17, 8:48 PM CDTFlash Flood WarningGRBBrown2 hr
Jun 17, 10:23 PM CDTFlash Flood WarningGRBWinnebago4 hr
Jun 17, 11:10 PM CDTFlash Flood WarningGRBOutagamie3 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.