Alert archive / Wisconsin / Flash Flood Warnings in 2001

Flash Flood Warning 5, NWS Milwaukee, WI

August 22, 2001Sauk County, Wisconsin

NWS Milwaukee, WI issued this flash flood warning at Aug 22, 2001, 6:42 AM CDT for Sauk County, Wisconsin. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: Aug 22, 2001, 6:42 AM CDT (11:42 UTC)
Expired: Aug 22, 2001, 12:30 PM CDT
In force: 6 hr
Issued by: NWS Milwaukee, WI
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Sauk County, WI

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 11.7 hours before the alert went out and 193 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: 1310 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 82 m²/s²
0-3 km storm-relative helicity: 223 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 
WGUS53 KMKX 221141
FFWMKE
WIC111-221730-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
642 AM CDT WED AUG 22 2001

THE NATIONAL WEATHER SERVICE IN SULLIVAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SAUK COUNTY IN SOUTH CENTRAL WISCONSIN

* UNTIL 1230 PM CDT

* AT 635 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS PRODUCING VERY HEAVY RAINFALL WERE OCCURRING OVER THE
  AREA.

* WEATHER SERVICE DOPPLER RADAR ESTIMATES ARE THAT 3 TO 4 INCHES     
  OF RAIN HAS FALLEN SINCE 3 AM  CDT IN SOME AREAS. THIS RAIN...AND  
  THE ADDITIONAL RAINFALL OF 2 TO 3 INCHES BY 9 AM WILL CAUSE LOCAL  
  STREAMS AND RIVERS TO RISE RAPIDLY AND OVERFLOW THEIR BANKS.

SOME LOCATIONS IN THE WARNING INCLUDE LA VALLE...IRONTON...LIME 
RIDGE...REEDSBURG...ROCK SPRINGS...LOGANVILLE AND BARABOO.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND QUICKLY. 

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.
MOVE TO HIGHER GROUND.

ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS 
AND STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLASH FLOODING. 
KEEP CHILDREN FROM PLAYING IN FLOODED AREAS. THEY CAN BE QUICKLY 
WASHED AWAY IN THE RAPIDLY FLOWING WATER.

LAT...LON 4364 8992 4330 8981 4323 9022 4371 9060

EISE

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 22, 3:40 AM CDT	Severe Thunderstorm Warning	MKX	Fond du Lac, Green Lake	65 min
Aug 22, 4:23 AM CDT	Severe Thunderstorm Warning	MKX	Dodge, Ozaukee, Sheboygan, Washington	67 min
Aug 22, 5:31 AM CDT	Severe Thunderstorm Warning	MKX	Ozaukee	44 min

Nearby

Flash Flood Warnings in Wisconsin, 2001 Every flash flood warning in 2001

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.