Alert archive / Wisconsin / Flash Flood Warnings in 2008

Flash Flood Warning 2, NWS Milwaukee, WI

April 25, 2008Columbia County, Sauk County, Wisconsin

NWS Milwaukee, WI issued this flash flood warning at Apr 25, 2008, 4:41 PM CDT for Columbia County, Sauk County, Wisconsin. It was in force for 3 hr. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Apr 25, 2008, 4:41 PM CDT (21:41 UTC)
Expired: Apr 25, 2008, 7:36 PM CDT
In force: 3 hr
Issued by: NWS Milwaukee, WI
Area: Storm-based polygon
Flood severity: None

Counties Columbia County, WI, Sauk County, WI

The radar

The Milwaukee radar (KMKX), 105 km from the middle of the area, began a volume at 21:43 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
Apr 25, 5:05 PM CDT	FLASH FLOOD	5 N Merrimac, WI	WATER AND TREE DEBRIS AND MUD ON DURWARDS GLEN ROAD.
Apr 25, 5:05 PM CDT	FLASH FLOOD	5 Nnw Harmony Grove, WI	WATER AND TREE DEBRIS AND MUD ON DURWARDS GLEN ROAD.
Apr 25, 5:10 PM CDT	HEAVY RAIN 0	Plain, WI	ZERO VISIBILITY DUE TO DOWNPOURS. MINORI FLOODING WITH SOME WATER ON ROADS.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 9.7 hours before the alert went out and 181 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: 806 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 99 m²/s²
0-3 km storm-relative helicity: 240 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 252142
FFWMKX
WIC021-111-260045-
/O.NEW.KMKX.FF.W.0002.080425T2141Z-080426T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
441 PM CDT FRI APR 25 2008

THE NATIONAL WEATHER SERVICE IN SULLIVAN HAS ISSUED A

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

* UNTIL 745 PM CDT

* AT 438 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  VERY HEAVY RAIN FROM A SERIES OF SEVERE THUNDERSTORMS OVER THE     
  WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO I90/94 WI
  RIVER BRIDGE...WISCONSIN DELLS AIRPORT...WISCONSIN DELLS...WEST
  BARABOO...SAUK CITY...RIO...REEDSBURG...PRAIRIE DU SAC...
  POYNETTE...PORTAGE...PARDEEVILLE...LODI...LAKE WISCONSIN...LAKE    
  DELTON AND BARABOO.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

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. MOVE TO HIGHER GROUND.

LAT...LON 4339 9018 4366 8993 4365 8916 4363 8902
      4331 8938 4329 8946 4329 8971 4324 8976
      4324 8981 4320 8985 4319 8990 4319 9020
TIME...MOT...LOC 2141Z 180DEG 0KT 4319 8988

$$

BORGHOFF

2 follow-up statements

000
WGUS73 KMKX 252343
FFSMKX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
642 PM CDT FRI APR 25 2008

WIC021-111-260045-
/O.CON.KMKX.FF.W.0002.000000T0000Z-080426T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
COLUMBIA WI-SAUK WI-
642 PM CDT FRI APR 25 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR SAUK
AND COLUMBIA COUNTIES...

AT 637 PM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED RESIDUAL 
FLOODING OVER SOME ROADS ACROSS THESE COUNTIES.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO I90/94 WI 
RIVER BRIDGE...WISCONSIN DELLS AIRPORT...WISCONSIN DELLS...WEST 
BARABOO...SAUK CITY...RIO...REEDSBURG...PRAIRIE DU 
SAC...POYNETTE...PORTAGE...PARDEEVILLE...LODI...LAKE 
WISCONSIN...LAKE DELTON AND BARABOO.

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. MOVE TO HIGHER GROUND.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM CDT FRIDAY EVENING FOR
SOUTHEASTERN WISCONSIN.

LAT...LON 4339 9018 4366 8993 4365 8916 4363 8902
      4331 8938 4329 8946 4329 8971 4324 8976
      4324 8981 4320 8985 4319 8990 4319 9020
TIME...MOT...LOC 2342Z 180DEG 0KT 4319 8988

$$

BORGHOFF

000 
WGUS73 KMKX 260036
FFSMKX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
735 PM CDT FRI APR 25 2008

WIC021-111-260045-
/O.CAN.KMKX.FF.W.0002.000000T0000Z-080426T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
COLUMBIA WI-SAUK WI-
735 PM CDT FRI APR 25 2008

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR SAUK AND COLUMBIA
COUNTIES...

AT 735 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED THE LINE OF 
THUNDERSTORMS THAT PROMPTED THE FLASH FLOOD WARNING HAVE MOVED EAST 
INTO SOUTHEAST WISCONSIN. THEREFORE THE FLASH FLOOD WARNING HAS BEEN 
CANCELLED.

LAT...LON 4339 9018 4366 8993 4365 8916 4363 8902
      4331 8938 4329 8946 4329 8971 4324 8976
      4324 8981 4320 8985 4319 8990 4319 9020
TIME...MOT...LOC 0035Z 180DEG 0KT 4319 8988

$$

REM

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 25, 3:59 AM CDT	Flood Watch	MKX	Dane, Green, Iowa, Lafayette, Rock, Sauk	15 hr
Apr 25, 6:10 AM CDT	River Flood Warning	MKX	Jefferson	8 days
Apr 25, 7:06 AM CDT	River Flood Warning	MKX	Lafayette	62 hr
Apr 25, 7:06 AM CDT	River Flood Warning	MKX	Lafayette	46 hr
Apr 25, 7:06 AM CDT	River Flood Warning	MKX	Green	13 days
Apr 25, 8:57 AM CDT	Areal Flood Advisory	MKX	Iowa, Lafayette	3 hr
Apr 25, 10:00 AM CDT	Severe Thunderstorm Warning	MKX	Rock, Walworth	30 min
Apr 25, 10:18 AM CDT	Severe Thunderstorm Warning	MKX	Jefferson, Waukesha	29 min
Apr 25, 12:33 PM CDT	River Flood Warning	MKX	Jefferson	4 days
Apr 25, 12:33 PM CDT	River Flood Warning	MKX	Jefferson	3 hr
Apr 25, 12:54 PM CDT	River Flood Warning	MKX	Rock	63 hr
Apr 25, 3:13 PM CDT	Severe Thunderstorm Warning	MKX	Iowa	47 min
Apr 25, 3:53 PM CDT	Flash Flood Warning	MKX	Iowa	3 hr
Apr 25, 4:16 PM CDT	Severe Thunderstorm Warning	MKX	Columbia, Dane, Iowa, Sauk	59 min
Apr 25, 4:28 PM CDT	Severe Thunderstorm Warning	MKX	Dodge, Fond du Lac	62 min
Apr 25, 4:30 PM CDT	Severe Thunderstorm Warning	MKX	Columbia, Green Lake, Marquette, Sauk	60 min
Apr 25, 4:37 PM CDT	Severe Thunderstorm Warning	MKX	Rock, Walworth	53 min
Apr 25, 4:55 PM CDT	Tornado Warning	MKX	Columbia, Sauk	50 min
Apr 25, 5:00 PM CDT	Severe Thunderstorm Warning	MKX	Fond du Lac, Sheboygan	45 min
Apr 25, 5:34 PM CDT	Tornado Warning	MKX	Columbia, Green Lake	41 min
Apr 25, 5:48 PM CDT	Tornado Warning	MKX	Fond du Lac, Green Lake	42 min
Apr 25, 6:02 PM CDT	Severe Thunderstorm Warning	MKX	Washington	28 min
Apr 25, 6:09 PM CDT	Flash Flood Warning	MKX	Ozaukee, Sheboygan, Washington	3 hr
Apr 25, 6:32 PM CDT	Special Marine Warning	MKX		88 min
Apr 25, 6:34 PM CDT	Areal Flood Advisory	MKX	Dodge, Jefferson, Racine, Rock, Walworth, Washington and 1 more	3 hr
Apr 25, 6:54 PM CDT	Severe Thunderstorm Warning	MKX	Milwaukee, Ozaukee, Washington, Waukesha	51 min

Nearby

Flash Flood Warnings in Wisconsin, 2008 Every flash flood warning in 2008

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.