Alert archive / Wisconsin / Flash Flood Warnings in 1994

Flash Flood Warning 2, NWS Milwaukee, WI

February 20, 1994Milwaukee County, Racine County, Wisconsin

NWS Milwaukee, WI issued this flash flood warning at Feb 20, 1994, 4:50 AM CST for Milwaukee County, Racine County, Wisconsin. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Feb 20, 1994, 4:50 AM CST (10:50 UTC)
Expired
Feb 20, 1994, 11:45 AM CST
In force
7 hr
Issued by
NWS Milwaukee, WI
Area
Whole counties

Counties Milwaukee County, WI, Racine County, WI

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 10.8 hours before the alert went out and 179 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 00:00Z on 1994-02-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Green Bay/Straub, WI at 00:00Z on 1994-02-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 115 square meters per square second.1939587897117136Sfc1 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
528 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
115 m²/s²
0-3 km storm-relative helicity
177 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 KMKE 201052
FFWMKE
WIC059-079-101-201745-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
450 AM CST SUN FEB 20 1994
 
THE NATIONAL WEATHER SERVICE IN MILWAUKEE/SULLIVAN HAS ISSUED A
FLOOD WARNING EFFECTIVE UNTIL 1200 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHEAST WISCONSIN
 
   ...KENOSHA COUNTY...MILWAUKEE COUNTY...RACINE COUNTY
 
THE FLOOD WARNING FOR THESE COUNTIES HAS BEEN EXTENDED THROUGH THIS
MORNING. RAINFALL AMOUNTS OF 1 TO 1 1/2 INCHES ACROSS FAR SOUTHEAST
WISCONSIN DURING THE LAST 12 HOURS IN COMBINATION WITH SNOWMELT HAS
CAUSED THE ROOT RIVER AT FRANKLIN AND RAYMOND TO EXCEED FLOOD STAGE.
 
AT 445 AM THE FLOOD STAGE AT FRANKLIN WAS 8.52 FEET AND AT RAYMOND
9.83 FEET.  FLOOD STAGE IS 8 FEET AT BOTH LOCATIONS.  URBAN FLOODING...
ESPECIALLY AROUND UNDERPASSES AND LOW LYING AREAS CAN ALSO BE EXPECTED.
 
WEATHER SERVICE RADAR DOES SHOW THE RAIN BECOMING MORE SCATTERED AND
IT SHOULD COME TO AN END LATER THIS MORNING.
 
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY.  THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY.  VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED QUICKLY$.
 
 
DAVIS/JOHNSTON

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, Feb 20, 4:06 AM CST, 44 minutes before
WIZ043>047-055>057-062-063-068-069-201310-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MADISON WI
406 AM CST SUN FEB 20 1994

...FLOOD WATCH CONTINUES FOR COLUMBIA...DANE...SAUK...IOWA...GREEN AND
ROCK COUNTIES...

WHILE THE HEAVIER RAINS HAVE MOVED OUT OF SOUTH-CENTRAL WISCONSIN...
OCCASIONAL SHOWERS ARE EXPECTED THROUGH THE MORNING HOURS.  RIVERS AND
STREAMS CONTINUE TO RISE WITH THE RUNOFF FROM THE RAIN AND MELTING SNOW.
LOW-LYING AREAS AND RIVER VALLEYS WILL CONTINUE TO BE AT RISK FOR
POSSIBLE FLOODING.

PERSONS LIVING IN FLOOD-PRONE AREAS SHOULD REMAIN ALERT TO THE THREAT
OF RISING WATER AND BE PREPARED TO ACT IF FLOODING IS OBSERVED.

MC MAHON
Special weather statement, Feb 20, 4:06 AM CST, 44 minutes before
WIZ043>047-055>057-062-063-068-069-201310-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MADISON WI
406 AM CST SUN FEB 20 1994

...FLOOD WATCH CONTINUES FOR COLUMBIA...DANE...SAUK...IOWA...GREEN AND
ROCK COUNTIES...

WHILE THE HEAVIER RAINS HAVE MOVED OUT OF SOUTH-CENTRAL WISCONSIN...
OCCASIONAL SHOWERS ARE EXPECTED THROUGH THE MORNING HOURS.  RIVERS AND
STREAMS CONTINUE TO RISE WITH THE RUNOFF FROM THE RAIN AND MELTING SNOW.
LOW-LYING AREAS AND RIVER VALLEYS WILL CONTINUE TO BE AT RISK FOR
POSSIBLE FLOODING.

PERSONS LIVING IN FLOOD-PRONE AREAS SHOULD REMAIN ALERT TO THE THREAT
OF RISING WATER AND BE PREPARED TO ACT IF FLOODING IS OBSERVED.

MC MAHON

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 19, 11:32 PM CSTFlash Flood WarningMKXKenosha, Milwaukee, Racine, Walworth6 hr
Feb 20, 4:50 AM CSTFlash Flood WarningMKXKenosha7 hr

Nearby

Flash Flood Warnings in Wisconsin, 1994Every flash flood 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.