Alert archive / Iowa / Flash Flood Watches in 2007

Flash Flood Watch 8, NWS La Crosse, WI

August 28, 20077 counties in Minnesota; 5 counties in Wisconsin; 8 counties in Iowa

NWS La Crosse, WI issued this flash flood watch at Aug 28, 2007, 4:08 AM CDT for 7 counties in Minnesota; 5 counties in Wisconsin; 8 counties in Iowa. It took effect at Aug 28, 2007, 12:52 PM CDT. It was in force for 14 hr.

The area

The counties it named.

The facts

Issued
Aug 28, 2007, 4:08 AM CDT (09:08 UTC)
In effect from
Aug 28, 2007, 12:52 PM CDT
Expired
Aug 29, 2007, 2:40 AM CDT
In force
14 hr
Issued by
NWS La Crosse, WI
Flood severity
None

Counties Allamakee County, IA, Chickasaw County, IA, Clayton County, IA, Fayette County, IA, Floyd County, IA, Howard County, IA, Mitchell County, IA, Winneshiek County, IA, Dodge County, MN, Fillmore County, MN, Houston County, MN, Mower County, MN, Olmsted County, MN, Wabasha County, MN, Winona County, MN, Crawford County, WI, Grant County, WI, La Crosse County, WI, Richland County, WI, Vernon County, WI

The radar

The La Crosse radar (KARX), 63 km from the middle of the area, began a volume at 09:11 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.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 9.1 hours before the alert went out and 209 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 2007-08-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2564 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, Minneapolis, MN at 00:00Z on 2007-08-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 379 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
2564 J/kg
Mixed-layer CIN
-230 J/kg
Mixed-layer LCL
806 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
379 m²/s²
0-3 km storm-relative helicity
526 m²/s²
Significant tornado parameter
0.0
Supercell composite
8.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS63 KARX 280908
FFAARX

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE LA CROSSE WI
408 AM CDT TUE AUG 28 2007

...HEAVY RAIN THREAT TONIGHT COULD LEAD TO MORE FLOODING PROBLEMS...

.A COLD FRONT WILL SAG SOUTH ACROSS THE AREA TODAY...EXTENDING
FROM EASTERN WISCONSIN INTO SOUTHWEST IOWA BY EARLY WEDNESDAY
MORNING. SHOWERS AND THUNDERSTORMS WILL DEVELOP AROUND THIS
BOUNDARY...AND WILL BE CAPABLE OF PRODUCING HEAVY RAIN. WITH AREA
GROUNDS STILL VERY SATURATED FROM RAINS OVER THE PAST WEEK AND A
HALF...ANY ADDITIONAL HEAVY RAINFALL COULD LEAD TO FLASH
FLOODING.

IAZ008>011-018-019-029-030-MNZ094>096-WIZ053>055-061-281715-
/O.NEW.KARX.FF.A.0008.070829T0000Z-070829T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MITCHELL-HOWARD-WINNESHIEK-ALLAMAKEE-FLOYD-CHICKASAW-FAYETTE-
CLAYTON-MOWER-FILLMORE-HOUSTON-VERNON-CRAWFORD-RICHLAND-GRANT-
INCLUDING THE CITIES OF...DECORAH...WAUKON...CHARLES CITY...
OELWEIN...AUSTIN...VIROQUA...PRAIRIE DU CHIEN...RICHLAND CENTER...
PLATTEVILLE
408 AM CDT TUE AUG 28 2007

...FLASH FLOOD WATCH IN EFFECT FROM THIS EVENING THROUGH
WEDNESDAY MORNING...

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* FLASH FLOOD WATCH FOR PORTIONS OF IOWA...SOUTHEAST MINNESOTA 
  AND SOUTHWEST WISCONSIN...INCLUDING THE FOLLOWING AREAS...IN 
  IOWA...ALLAMAKEE...CHICKASAW...CLAYTON...FAYETTE...FLOYD...
  HOWARD...MITCHELL AND WINNESHIEK. IN SOUTHEAST MINNESOTA...
  FILLMORE...HOUSTON AND MOWER. IN SOUTHWEST WISCONSIN...
  CRAWFORD...GRANT...RICHLAND AND VERNON.

* FROM THIS EVENING THROUGH WEDNESDAY MORNING

* SHOWERS AND THUNDERSTORMS WILL DEVELOP AND MOVE ACROSS THE AREA
  LATER THIS AFTERNOON AND TONIGHT...CAPABLE OF PRODUCING HEAVY
  RAINFALL. WITH AREA GROUNDS SATURATED FROM RECENT RAINS...ANY
  ADDITIONAL HEAVY RAIN COULD RESULT IN FLASH FLOODING.

* RUNOFF FROM THE RAINS MAY LEAD TO FAST FLOWING WATER OVER
  ROADS...PONDING OF WATER IN LOW LYING AREAS...AND SOIL EROSION
  OR MUD SLIDES IN HILLY TERRAIN. URBAN AREAS MAY ALSO EXPERIENCE
  CLOSED ROADS DUE TO PONDING OF WATER.

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.

YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.

$$

RIECK
6 follow-up statements
000 
WGUS63 KARX 281611
FFAARX

FLOOD WATCH
NATIONAL WEATHER SERVICE LA CROSSE WI
1111 AM CDT TUE AUG 28 2007

...HEAVY RAIN THREAT THIS EVENING AND OVERNIGHT COULD LEAD TO MORE FLOODING
PROBLEMS...

.A COLD FRONT WILL MOVE SOUTHEAST ACROSS THE AREA THIS AFTERNOON...
AND WILL EXTEND FROM EASTERN WISCONSIN THROUGH SOUTHWEST IOWA BY
EARLY WEDNESDAY MORNING. SHOWERS AND THUNDERSTORMS WILL DEVELOP
ALONG THIS BOUNDARY...AND WILL BE CAPABLE OF PRODUCING HEAVY RAIN.
WITH AREA GROUNDS STILL VERY SATURATED FROM EXCESSIVE RAINS OVER
THE PAST WEEK AND A HALF...ANY ADDITIONAL HEAVY RAINFALL COULD
LEAD TO FLASH FLOODING.

IAZ008>011-018-019-029-030-MNZ094>096-WIZ053>055-061-290015-
/O.CON.KARX.FF.A.0008.070829T0000Z-070829T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MITCHELL-HOWARD-WINNESHIEK-ALLAMAKEE-FLOYD-CHICKASAW-FAYETTE-
CLAYTON-MOWER-FILLMORE-HOUSTON-VERNON-CRAWFORD-RICHLAND-GRANT-
INCLUDING THE CITIES OF...DECORAH...WAUKON...CHARLES CITY...
OELWEIN...AUSTIN...VIROQUA...PRAIRIE DU CHIEN...RICHLAND CENTER...
PLATTEVILLE
1111 AM CDT TUE AUG 28 2007

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 7 PM CDT THIS EVENING
THROUGH WEDNESDAY MORNING...

THE FLASH FLOOD WATCH CONTINUES FOR

* PORTIONS OF IOWA...SOUTHEAST MINNESOTA AND SOUTHWEST 
  WISCONSIN...INCLUDING THE FOLLOWING AREAS...IN IOWA...
  ALLAMAKEE...CHICKASAW...CLAYTON...FAYETTE...FLOYD...HOWARD...
  MITCHELL AND WINNESHIEK. IN SOUTHEAST MINNESOTA...FILLMORE...
  HOUSTON AND MOWER. IN SOUTHWEST WISCONSIN...CRAWFORD...GRANT...
  RICHLAND AND VERNON.

* FROM 7 PM CDT THIS EVENING THROUGH WEDNESDAY MORNING

* SHOWERS AND THUNDERSTORMS WILL DEVELOP AND MOVE ACROSS THE AREA
  LATER THIS AFTERNOON AND TONIGHT. DUE TO THE ABUNDANT AVAILABLE
  MOISTURE IN THE ATMOSPHERE...SOME THUNDERSTORMS WILL BE CAPABLE
  OF PRODUCING VERY HEAVY RAINFALL. WITH AREA GROUNDS SATURATED
  FROM RECENT EXCESSIVE RAINS...ANY ADDITIONAL HEAVY RAIN MAY RESULT
  IN FLASH FLOODING.

* RUNOFF FROM THE RAINS MAY LEAD TO FAST FLOWING WATER OVER
  ROADS...PONDING OF WATER IN LOW LYING AREAS...AND SOIL EROSION
  OR MUD SLIDES IN HILLY TERRAIN. URBAN AREAS MAY ALSO EXPERIENCE
  CLOSED ROADS DUE TO PONDING OF WATER. IF WORKING OUTSIDE ON
  RECENT FLOOD DAMAGE...BE AWARE OF THIS RENEWED FLASH FLOODING
  POTENTIAL. AREAS THAT HAVE BEEN WASHED OUT WILL BE ESPECIALLY
  SUSCEPTIBLE TO FLASH FLOODING DUE TO THE DIMINISHED VEGETATIVE
  COVER.

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.

YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.

$$

DAS
000 
WGUS63 KARX 281752
FFAARX

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE LA CROSSE WI
1252 PM CDT TUE AUG 28 2007

...HEAVY RAIN THREAT THIS AFTERNOON EXPANDED...

.A COLD FRONT WAS BEGINNING TO TRIGGER THUNDERSTORMS FROM
NORTHWEST WISCONSIN TO NORTHWEST IOWA EARLY THIS AFTERNOON. THESE
THUNDERSTORMS WILL SLOWLY MAKE THEIR WAY SOUTHEAST INTO SOUTHEAST
MINNESOTA AS THE AFTERNOON PROGRESSES. THE THUNDERSTORMS DO HAVE
THE POTENTIAL OF HEAVY RAIN AND REPEATEDLY RAINING ON THE SAME
AREAS. THEREFORE THE FLASH FLOOD WATCH WAS UPDATED TO INCLUDE
AREAS NORTH OF A LA CROSSE WISCONSIN...TO CHARLES CITY IOWA...LINE
THIS AFTERNOON. THE LINE OF STORMS WILL CONTINUE TO SHIFT
SOUTHEAST THROUGH THE EVENING PROVIDING A HEAVY RAINFALL AND
FLOODING THREAT TO THE REMAINDER OF THE WATCH AREA OVER IOWA AND
SOUTHWEST WISCONSIN. WITH AREA SOILS STILL VERY SATURATED FROM
EXCESSIVE RAINS OVER THE PAST WEEK AND A HALF... ANY ADDITIONAL
HEAVY RAINFALL COULD LEAD TO FLASH FLOODING. THOSE WORKING
OUTDOORS WITH CLEANUP EFFORTS SHOULD PREPARE FOR RAIN.

MNZ079-086>088-WIZ041-290200-
/O.EXB.KARX.FF.A.0008.070828T1800Z-070829T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WABASHA-DODGE-OLMSTED-WINONA-LA CROSSE-
INCLUDING THE CITIES OF...ROCHESTER...WINONA...LA CROSSE
1252 PM CDT TUE AUG 28 2007

...FLASH FLOOD WATCH IN EFFECT THROUGH WEDNESDAY MORNING...

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS EXPANDED THE

* FLASH FLOOD WATCH TO INCLUDE PORTIONS OF SOUTHEAST MINNESOTA 
  AND WEST CENTRAL WISCONSIN...INCLUDING THE FOLLOWING AREAS...
  IN SOUTHEAST MINNESOTA...DODGE...OLMSTED...WABASHA AND WINONA. 
  IN WEST CENTRAL WISCONSIN...LA CROSSE.

* THROUGH WEDNESDAY MORNING

* A LINE OF SHOWERS AND THUNDERSTORMS WILL SHIFT IN FROM THE
  NORTHWEST THROUGH THE AFTERNOON PROVIDING THE THREAT FOR HEAVY
  RAINFALL. WITH SATURATED SOILS FROM RECENT EXCESSIVE RAINS...ANY
  ADDITIONAL HEAVY RAIN MAY RESULT IN FLASH FLOODING. THOSE ALONG
  CREEKS ARE ESPECIALLY AT RISK.

* RUNOFF FROM THE RAINS MAY LEAD TO FAST FLOWING WATER OVER 
  ROADS...PONDING OF WATER IN LOW LYING AREAS...AND SOIL EROSION 
  OR MUD SLIDES IN HILLY TERRAIN. URBAN AREAS MAY ALSO 
  EXPERIENCE CLOSED ROADS DUE TO PONDING OF WATER. IF WORKING 
  OUTSIDE ON RECENT FLOOD DAMAGE...BE AWARE OF THIS RENEWED 
  FLASH FLOODING POTENTIAL. AREAS THAT HAVE BEEN WASHED OUT WILL 
  BE ESPECIALLY SUSCEPTIBLE TO FLASH FLOODING DUE TO THE 
  DIMINISHED VEGETATIVE COVER. 

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.

YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.

$$

IAZ008-009-018-MNZ094>096-290200-
/O.EXT.KARX.FF.A.0008.070828T1800Z-070829T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MITCHELL-HOWARD-FLOYD-MOWER-FILLMORE-HOUSTON-
INCLUDING THE CITIES OF...CHARLES CITY...AUSTIN
1252 PM CDT TUE AUG 28 2007

...FLASH FLOOD WATCH NOW IN EFFECT THROUGH WEDNESDAY MORNING...

THE FLASH FLOOD WATCH IS NOW IN EFFECT FOR

* PORTIONS OF IOWA AND SOUTHEAST MINNESOTA...INCLUDING THE 
  FOLLOWING AREAS...IN IOWA...FLOYD...HOWARD AND MITCHELL. IN 
  SOUTHEAST MINNESOTA...FILLMORE...HOUSTON AND MOWER.

* THROUGH WEDNESDAY MORNING

* A LINE OF SHOWERS AND THUNDERSTORMS WILL SHIFT IN FROM THE
  NORTHWEST THROUGH THE AFTERNOON PROVIDING THE THREAT FOR HEAVY
  RAINFALL. WITH SATURATED SOILS FROM RECENT EXCESSIVE RAINS...ANY
  ADDITIONAL HEAVY RAIN MAY RESULT IN FLASH FLOODING. THOSE ALONG
  CREEKS ARE ESPECIALLY AT RISK.

* RUNOFF FROM THE RAINS MAY LEAD TO FAST FLOWING WATER OVER 
  ROADS...PONDING OF WATER IN LOW LYING AREAS...AND SOIL EROSION 
  OR MUD SLIDES IN HILLY TERRAIN. URBAN AREAS MAY ALSO 
  EXPERIENCE CLOSED ROADS DUE TO PONDING OF WATER. IF WORKING 
  OUTSIDE ON RECENT FLOOD DAMAGE...BE AWARE OF THIS RENEWED 
  FLASH FLOODING POTENTIAL. AREAS THAT HAVE BEEN WASHED OUT WILL 
  BE ESPECIALLY SUSCEPTIBLE TO FLASH FLOODING DUE TO THE 
  DIMINISHED VEGETATIVE COVER. 

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.

YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.

$$

IAZ010-011-019-029-030-WIZ053>055-061-290200-
/O.CON.KARX.FF.A.0008.070829T0000Z-070829T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WINNESHIEK-ALLAMAKEE-CHICKASAW-FAYETTE-CLAYTON-VERNON-CRAWFORD-
RICHLAND-GRANT-
INCLUDING THE CITIES OF...DECORAH...WAUKON...OELWEIN...VIROQUA...
PRAIRIE DU CHIEN...RICHLAND CENTER...PLATTEVILLE
1252 PM CDT TUE AUG 28 2007

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 7 PM CDT THIS EVENING
THROUGH WEDNESDAY MORNING...

THE FLASH FLOOD WATCH CONTINUES FOR

* PORTIONS OF NORTHEAST IOWA AND SOUTHWEST WISCONSIN...INCLUDING 
  THE FOLLOWING AREAS...IN NORTHEAST IOWA...ALLAMAKEE...
  CHICKASAW...CLAYTON...FAYETTE AND WINNESHIEK. IN SOUTHWEST 
  WISCONSIN...CRAWFORD...GRANT...RICHLAND AND VERNON.

* FROM 7 PM CDT THIS EVENING THROUGH WEDNESDAY MORNING

* A LINE OF SHOWERS AND THUNDERSTORMS WILL SHIFT IN FROM THE
  NORTHWEST THIS EVENING PROVIDING THE THREAT FOR HEAVY RAINFALL.
  WITH SATURATED SOILS FROM RECENT EXCESSIVE RAINS...ANY
  ADDITIONAL HEAVY RAIN MAY RESULT IN FLASH FLOODING. THOSE ALONG
  CREEKS ARE ESPECIALLY AT RISK.

* RUNOFF FROM THE RAINS MAY LEAD TO FAST FLOWING WATER OVER 
  ROADS...PONDING OF WATER IN LOW LYING AREAS...AND SOIL EROSION 
  OR MUD SLIDES IN HILLY TERRAIN. URBAN AREAS MAY ALSO 
  EXPERIENCE CLOSED ROADS DUE TO PONDING OF WATER. IF WORKING 
  OUTSIDE ON RECENT FLOOD DAMAGE...BE AWARE OF THIS RENEWED 
  FLASH FLOODING POTENTIAL. AREAS THAT HAVE BEEN WASHED OUT WILL 
  BE ESPECIALLY SUSCEPTIBLE TO FLASH FLOODING DUE TO THE 
  DIMINISHED VEGETATIVE COVER. 

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.

YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.

$$

BAUMGARDT/SCHMIDT
000 
WGUS63 KARX 282058
FFAARX

FLOOD WATCH
NATIONAL WEATHER SERVICE LA CROSSE WI
358 PM CDT TUE AUG 28 2007

...HEAVY RAIN THREAT INTO TONIGHT...

.A COLD FRONT AND ATTENDANT LINE OF THUNDERSTORMS WILL CONTINUE
WORKING SLOWLY SOUTHEAST ACROSS THE AREA TONIGHT. DUE TO ABUNDANT
MOISTURE AVAILABLE IN THE ATMOSPHERE...THE THUNDERSTORMS WILL HAVE
THE POTENTIAL FOR PRODUCING VERY HEAVY RAINFALL. IN ADDITION...DUE
TO THE SLOW MOVEMENT OF THE FRONTAL BOUNDARY...THE THUNDERSTORMS
MAY REPEATEDLY MOVE ACROSS THE SAME AREAS. WITH AREA SOILS STILL
VERY SATURATED FROM EXCESSIVE RAINS OVER THE PAST WEEK AND A
HALF... ANY ADDITIONAL HEAVY RAINFALL MAY LEAD TO FLASH FLOODING.
THEREFORE...THE FLASH FLOOD WATCH WILL CONTINUE THROUGH THE
OVERNIGHT HOURS. THOSE WORKING OUTDOORS WITH FLOOD CLEANUP EFFORTS
SHOULD STAY ABREAST FOR LATEST UPDATES AND PREPARE FOR THE RAIN
AND POTENTIAL FLASH FLOODING.

IAZ010-011-019-029-030-WIZ053>055-061-290500-
/O.CON.KARX.FF.A.0008.070829T0000Z-070829T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WINNESHIEK-ALLAMAKEE-CHICKASAW-FAYETTE-CLAYTON-VERNON-CRAWFORD-
RICHLAND-GRANT-
INCLUDING THE CITIES OF...DECORAH...WAUKON...OELWEIN...VIROQUA...
PRAIRIE DU CHIEN...RICHLAND CENTER...PLATTEVILLE
358 PM CDT TUE AUG 28 2007

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 7 PM CDT THIS EVENING
THROUGH WEDNESDAY MORNING...

THE FLASH FLOOD WATCH CONTINUES FOR

* PORTIONS OF NORTHEAST IOWA AND SOUTHWEST WISCONSIN...INCLUDING 
  THE FOLLOWING AREAS...IN NORTHEAST IOWA...ALLAMAKEE...
  CHICKASAW...CLAYTON...FAYETTE AND WINNESHIEK. IN SOUTHWEST 
  WISCONSIN...CRAWFORD...GRANT...RICHLAND AND VERNON.

* FROM 7 PM CDT THIS EVENING THROUGH WEDNESDAY MORNING

* A COLD FRONT WITH A LINE OF SHOWERS AND THUNDERSTORMS WILL MOVE
  SLOWLY SOUTHEAST THROUGH THE AREA TONIGHT AND WILL PROVIDE A
  THREAT FOR HEAVY RAINFALL. WITH SATURATED SOILS FROM RECENT
  EXCESSIVE RAINS...ANY ADDITIONAL HEAVY RAIN MAY RESULT IN FLASH
  FLOODING. THOSE ALONG CREEKS AND ALREADY WASHED OUT AREAS ARE
  ESPECIALLY AT RISK.

* RUNOFF FROM THE RAINS MAY LEAD TO FAST FLOWING WATER OVER 
  ROADS...PONDING OF WATER IN LOW LYING AREAS...AND SOIL EROSION 
  OR MUD SLIDES IN HILLY TERRAIN. URBAN AREAS MAY ALSO 
  EXPERIENCE CLOSED ROADS DUE TO PONDING OF WATER. IF WORKING 
  OUTSIDE ON RECENT FLOOD DAMAGE...BE AWARE OF THIS RENEWED 
  FLASH FLOODING POTENTIAL. AREAS THAT HAVE BEEN WASHED OUT WILL 
  BE ESPECIALLY SUSCEPTIBLE TO FLASH FLOODING DUE TO THE 
  DIMINISHED VEGETATIVE COVER. 

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.

YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.

$$

IAZ008-009-018-MNZ079-086>088-094>096-WIZ041-290500-
/O.CON.KARX.FF.A.0008.000000T0000Z-070829T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MITCHELL-HOWARD-FLOYD-WABASHA-DODGE-OLMSTED-WINONA-MOWER-FILLMORE-
HOUSTON-LA CROSSE-
INCLUDING THE CITIES OF...CHARLES CITY...ROCHESTER...WINONA...
AUSTIN...LA CROSSE
358 PM CDT TUE AUG 28 2007

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY
MORNING...

THE FLASH FLOOD WATCH CONTINUES FOR

* PORTIONS OF IOWA...SOUTHEAST MINNESOTA AND WEST CENTRAL 
  WISCONSIN...INCLUDING THE FOLLOWING AREAS...IN IOWA...FLOYD...
  HOWARD AND MITCHELL. IN SOUTHEAST MINNESOTA...DODGE...
  FILLMORE...HOUSTON...MOWER...OLMSTED...WABASHA AND WINONA. IN 
  WEST CENTRAL WISCONSIN...LA CROSSE.

* THROUGH WEDNESDAY MORNING

* A COLD FRONT WITH A LINE OF SHOWERS AND THUNDERSTORMS WILL
  CONTINUE TO MOVE SLOWLY SOUTHEAST THROUGH THE AREA THE REST OF
  THIS AFTERNOON THROUGH TONIGHT. THIS WILL PROVIDE A THREAT FOR
  HEAVY RAINFALL. WITH SATURATED SOILS FROM RECENT EXCESSIVE
  RAINS...ANY ADDITIONAL HEAVY RAIN MAY RESULT IN FLASH FLOODING.
  THOSE ALONG CREEKS AND ALREADY WASHED OUT AREAS ARE ESPECIALLY AT
  RISK.

* RUNOFF FROM THE RAINS MAY LEAD TO FAST FLOWING WATER OVER 
  ROADS...PONDING OF WATER IN LOW LYING AREAS...AND SOIL EROSION 
  OR MUD SLIDES IN HILLY TERRAIN. URBAN AREAS MAY ALSO 
  EXPERIENCE CLOSED ROADS DUE TO PONDING OF WATER. IF WORKING 
  OUTSIDE ON RECENT FLOOD DAMAGE...BE AWARE OF THIS RENEWED 
  FLASH FLOODING POTENTIAL. AREAS THAT HAVE BEEN WASHED OUT WILL 
  BE ESPECIALLY SUSCEPTIBLE TO FLASH FLOODING DUE TO THE 
  DIMINISHED VEGETATIVE COVER. 

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.

YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.

$$

DAS
000 
WGUS63 KARX 290104
FFAARX

FLOOD WATCH
NATIONAL WEATHER SERVICE LA CROSSE WI
804 PM CDT TUE AUG 28 2007

...STILL A THREAT FOR HEAVY RAINFALL TONIGHT...

.A COLD FRONT WAS MOVING SOUTHWARD THROUGH IOWA AND SOUTHERN
WISCONSIN...WITH SOME THUNDERSTORM ACTIVITY. BEHIND THE FRONT...
A BROAD AREA OF RAIN AND EMBEDDED THUNDERSTORMS WAS OCCURRING.
ALL OF THIS RAIN WILL MOVE ACROSS SOUTHEAST MINNESOTA...NORTHEAST
IOWA... AND SOUTHWEST WISCONSIN DURING THE EVENING...AND INTO THE
OVERNIGHT HOURS. ADDITIONAL RAINFALL TONIGHT IS EXPECTED TO BE
AROUND AN INCH...WITH SOME LOCALLY HIGHER AMOUNTS. THIS IS ON TOP
OF WHAT HAS ALREADY FALLEN. WITH AREA SOILS STILL VERY SATURATED
FROM EXCESSIVE RAINS OVER THE PAST WEEK AND A HALF...ANY ADDITIONAL
HEAVY RAINFALL MAY LEAD TO FLASH FLOODING. THEREFORE...THE FLASH
FLOOD WATCH WILL CONTINUE THROUGH THE OVERNIGHT HOURS. THOSE
WORKING OUTDOORS WITH FLOOD CLEANUP EFFORTS SHOULD STAY ABREAST
FOR LATEST UPDATES AND PREPARE FOR THE RAIN AND POTENTIAL FLASH
FLOODING.

IAZ010-011-019-029-030-WIZ053>055-061-290915-
/O.CON.KARX.FF.A.0008.000000T0000Z-070829T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WINNESHIEK-ALLAMAKEE-CHICKASAW-FAYETTE-CLAYTON-VERNON-CRAWFORD-
RICHLAND-GRANT-
INCLUDING THE CITIES OF...DECORAH...WAUKON...OELWEIN...VIROQUA...
PRAIRIE DU CHIEN...RICHLAND CENTER...PLATTEVILLE
804 PM CDT TUE AUG 28 2007

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 7 AM CDT WEDNESDAY...

THE FLASH FLOOD WATCH CONTINUES FOR

* PORTIONS OF NORTHEAST IOWA AND SOUTHWEST WISCONSIN...INCLUDING 
  THE FOLLOWING AREAS...IN NORTHEAST IOWA...ALLAMAKEE...
  CHICKASAW...CLAYTON...FAYETTE AND WINNESHIEK. IN SOUTHWEST 
  WISCONSIN...CRAWFORD...GRANT...RICHLAND AND VERNON.

* UNTIL 7 AM CDT WEDNESDAY

* RAIN AND EMBEDDED THUNDERSTORMS WILL CONTINUE ACROSS THE AREA
  TONIGHT AND WILL PROVIDE A THREAT FOR HEAVY RAINFALL. WITH
  SATURATED SOILS FROM RECENT EXCESSIVE RAINS...ANY ADDITIONAL
  HEAVY RAIN MAY RESULT IN FLASH FLOODING. THOSE ALONG CREEKS AND
  ALREADY WASHED OUT AREAS ARE ESPECIALLY AT RISK.

* RUNOFF FROM THE RAINS MAY LEAD TO WATER OVER ROADS...PONDING OF
  WATER IN LOW LYING AREAS...AND SOIL EROSION OR MUD SLIDES IN
  HILLY TERRAIN. URBAN AREAS MAY ALSO EXPERIENCE PONDING OF WATER.
  IF WORKING OUTSIDE ON RECENT FLOOD DAMAGE...BE AWARE OF THIS
  RENEWED FLASH FLOODING POTENTIAL. AREAS THAT HAVE BEEN WASHED
  OUT WILL BE ESPECIALLY SUSCEPTIBLE TO FLASH FLOODING DUE TO THE
  DIMINISHED VEGETATIVE COVER.

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.

YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.

$$

IAZ008-009-018-MNZ079-086>088-094>096-WIZ041-290915-
/O.CON.KARX.FF.A.0008.000000T0000Z-070829T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MITCHELL-HOWARD-FLOYD-WABASHA-DODGE-OLMSTED-WINONA-MOWER-FILLMORE-
HOUSTON-LA CROSSE-
INCLUDING THE CITIES OF...CHARLES CITY...ROCHESTER...WINONA...
AUSTIN...LA CROSSE
804 PM CDT TUE AUG 28 2007

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 7 AM CDT WEDNESDAY...

THE FLASH FLOOD WATCH CONTINUES FOR

* PORTIONS OF IOWA...SOUTHEAST MINNESOTA AND WEST CENTRAL 
  WISCONSIN...INCLUDING THE FOLLOWING AREAS...IN IOWA...FLOYD...
  HOWARD AND MITCHELL. IN SOUTHEAST MINNESOTA...DODGE...
  FILLMORE...HOUSTON...MOWER...OLMSTED...WABASHA AND WINONA. IN 
  WEST CENTRAL WISCONSIN...LA CROSSE.

* UNTIL 7 AM CDT WEDNESDAY

* RAIN AND EMBEDDED THUNDERSTORMS WILL CONTINUE ACROSS THE AREA
  TONIGHT AND WILL PROVIDE A THREAT FOR HEAVY RAINFALL. WITH
  SATURATED SOILS FROM RECENT EXCESSIVE RAINS...ANY ADDITIONAL
  HEAVY RAIN MAY RESULT IN FLASH FLOODING. THOSE ALONG CREEKS AND
  ALREADY WASHED OUT AREAS ARE ESPECIALLY AT RISK.

* RUNOFF FROM THE RAINS MAY LEAD TO WATER OVER ROADS...PONDING OF
  WATER IN LOW LYING AREAS...AND SOIL EROSION OR MUD SLIDES IN
  HILLY TERRAIN. URBAN AREAS MAY ALSO EXPERIENCE PONDING OF
  WATER. IF WORKING OUTSIDE ON RECENT FLOOD DAMAGE...BE AWARE OF
  THIS RENEWED FLASH FLOODING POTENTIAL. AREAS THAT HAVE BEEN
  WASHED OUT WILL BE ESPECIALLY SUSCEPTIBLE TO FLASH FLOODING DUE
  TO THE DIMINISHED VEGETATIVE COVER.

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.

YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.

$$


MW
000 
WGUS63 KARX 290305
FFAARX

FLOOD WATCH
NATIONAL WEATHER SERVICE LA CROSSE WI
1005 PM CDT TUE AUG 28 2007

...RAINFALL AREA SHIFTING SOUTH...

.AS A COLD FRONT CONTINUES TO SINK SOUTHWARD ACROSS THE
REGION...THE MAIN BAND OF HEAVY RAINFALL IS SHIFTING SOUTH ALONG
WITH IT. ADDITIONAL RAINFALL TONIGHT IS EXPECTED TO BE BETWEEN A
HALF INCH AND ONE INCH OVER PARTS OF SOUTHWEST WISCONSIN AND
NORTHEAST IOWA. THIS IS ON TOP OF WHAT HAS ALREADY FALLEN. WITH
AREA SOILS STILL VERY SATURATED FROM EXCESSIVE RAINS OVER THE PAST
WEEK AND A HALF...ANY ADDITIONAL HEAVY RAINFALL MAY LEAD TO FLASH
FLOODING. THEREFORE...THE FLASH FLOOD WATCH WILL CONTINUE THROUGH
THE OVERNIGHT HOURS FOR THESE AREAS. FURTHER TO THE NORTH...THE
RAIN THREAT HAS ENDED...SO THE WATCH HAS BEEN CANCELLED THERE.
THOSE WORKING OUTDOORS WITH FLOOD CLEANUP EFFORTS SHOULD STAY
ABREAST FOR LATEST UPDATES AND PREPARE FOR THE RAIN AND POTENTIAL
FLASH FLOODING.

IAZ008-009-018-MNZ079-086>088-094>096-WIZ041-290415-
/O.CAN.KARX.FF.A.0008.000000T0000Z-070829T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MITCHELL-HOWARD-FLOYD-WABASHA-DODGE-OLMSTED-WINONA-MOWER-FILLMORE-
HOUSTON-LA CROSSE-
INCLUDING THE CITIES OF...CHARLES CITY...ROCHESTER...WINONA...
AUSTIN...LA CROSSE
1005 PM CDT TUE AUG 28 2007

...FLASH FLOOD WATCH IS CANCELLED...

THE FLASH FLOOD WATCH FOR PORTIONS OF IOWA...SOUTHEAST MINNESOTA
AND WEST CENTRAL WISCONSIN HAS BEEN CANCELLED. THE HEAVY RAIN
THREAT HAS SHIFTED SOUTH OF THE AREA. 

$$

IAZ010-011-019-029-030-WIZ053>055-061-291115-
/O.CON.KARX.FF.A.0008.000000T0000Z-070829T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WINNESHIEK-ALLAMAKEE-CHICKASAW-FAYETTE-CLAYTON-VERNON-CRAWFORD-
RICHLAND-GRANT-
INCLUDING THE CITIES OF...DECORAH...WAUKON...OELWEIN...VIROQUA...
PRAIRIE DU CHIEN...RICHLAND CENTER...PLATTEVILLE
1005 PM CDT TUE AUG 28 2007

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 7 AM CDT WEDNESDAY...

THE FLASH FLOOD WATCH CONTINUES FOR

* PORTIONS OF NORTHEAST IOWA AND SOUTHWEST WISCONSIN...INCLUDING 
  THE FOLLOWING AREAS...IN NORTHEAST IOWA...ALLAMAKEE...
  CHICKASAW...CLAYTON...FAYETTE AND WINNESHIEK. IN SOUTHWEST 
  WISCONSIN...CRAWFORD...GRANT...RICHLAND AND VERNON.

* UNTIL 7 AM CDT WEDNESDAY

* RAIN AND EMBEDDED THUNDERSTORMS WILL CONTINUE ACROSS THE AREA 
  TONIGHT AND WILL PROVIDE A THREAT FOR HEAVY RAINFALL. WITH 
  SATURATED SOILS FROM RECENT EXCESSIVE RAINS...ANY ADDITIONAL 
  HEAVY RAIN MAY RESULT IN FLASH FLOODING. THOSE ALONG CREEKS 
  AND ALREADY WASHED OUT AREAS ARE ESPECIALLY AT RISK. 

* RUNOFF FROM THE RAINS MAY LEAD TO WATER OVER ROADS...PONDING 
  OF WATER IN LOW LYING AREAS...AND SOIL EROSION OR MUD SLIDES 
  IN HILLY TERRAIN. URBAN AREAS MAY ALSO EXPERIENCE PONDING OF 
  WATER. IF WORKING OUTSIDE ON RECENT FLOOD DAMAGE...BE AWARE OF 
  THIS RENEWED FLASH FLOODING POTENTIAL. AREAS THAT HAVE BEEN 
  WASHED OUT WILL BE ESPECIALLY SUSCEPTIBLE TO FLASH FLOODING 
  DUE TO THE DIMINISHED VEGETATIVE COVER. 

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.

YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.

$$


MW
000 
WGUS63 KARX 290740
FFAARX

FLOOD WATCH
NATIONAL WEATHER SERVICE LA CROSSE WI
240 AM CDT WED AUG 29 2007

...THE THREAT FOR HEAVY RAIN COMING TO AN END...

.THE FRONTAL BOUNDARY PROVIDING THE FOCUS FOR SHOWER AND
THUNDERSTORM DEVELOP WILL SINK SLOWLY SOUTH TODAY...TAKING THE
PRECIPITATION WITH IT. SHOWERS AND THUNDERSTORMS WILL BE SCATTERED
ACROSS NORTHEAST IOWA AND SOUTHWEST WISCONSIN THIS MORNING...BUT
PROLONGED HEAVY RAIN IS NO LONGER EXPECTED. THEREFORE...THE FLASH
FLOOD WATCH HAS BEEN CANCELED. 

IAZ010-011-019-029-030-WIZ053>055-061-290845-
/O.CAN.KARX.FF.A.0008.000000T0000Z-070829T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WINNESHIEK-ALLAMAKEE-CHICKASAW-FAYETTE-CLAYTON-VERNON-CRAWFORD-
RICHLAND-GRANT-
INCLUDING THE CITIES OF...DECORAH...WAUKON...OELWEIN...VIROQUA...
PRAIRIE DU CHIEN...RICHLAND CENTER...PLATTEVILLE
240 AM CDT WED AUG 29 2007

...FLASH FLOOD WATCH IS CANCELLED...

THE FLASH FLOOD WATCH FOR PORTIONS OF NORTHEAST IOWA AND
SOUTHWEST WISCONSIN HAS BEEN CANCELED. SHOWERS AND THUNDERSTORMS
WILL BE SCATTERED ACROSS THE AREA THIS MORNING...BUT PROLONGED
HEAVY RAIN THAT COULD LEAD TO FLASH FLOODING IS NO LONGER
EXPECTED.

$$

RIECK

What forecasters said that day

The local office's own words before this flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS La Crosse, WI wrote its last area forecast discussion before this flash flood watch went out at Aug 28, 3:30 AM CDT, 38 minutes earlier.

Area forecast discussion, Aug 28, 3:30 AM CDT, 38 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LA CROSSE WI
330 AM CDT TUE AUG 28 2007

.SHORT TERM...TODAY THROUGH THURSDAY NIGHT

FORECAST FOCUS IN ON THE PCPN FOR TODAY...SEVERE WEATHER POTENTIAL
AND HEAVY RAIN THREAT.

CURRENTLY...CONVECTION CONTINUES TO FIRE FROM CENTRAL MN INTO
NORTHERN WI...ASSOCIATED WITH AN UPPER LEVEL SHORTWAVE
TROUGH...SFC FRONT...AND LOW LEVEL JET/MOISTURE RETURN INTERACTIONS.
APPRECIABLE CAP ACROSS THE LOCAL AREA THOUGH...WITH 700 MB TEMPS
AROUND 12 C. SHOWER/STORMS WILL HAVE A DIFFICULT TIME WORKING ANY
FARTHER SOUTH AS A RESULT...AND EXPECT MOST OF THE FORECAST AREA TO
STAY DRY THROUGH THE MORNING HOURS. THE EXCEPTION HERE WILL BE TO
THE FAR NORTH...GENERALLY NORTH OF HWY 10 IN NORTHCENTRAL WI.

FOR THE REST OF TODAY AND TONIGHT...THE FRONT WILL GRADUALLY SINK
SOUTH TODAY...GETTING A NUDGE FROM A BROAD 500 MB TROUGH SLIDING
EAST ACROSS THE CANADIAN/US BORDER...AND LAY ROUGHLY FROM NORTHEAST
WI TO THE SOUTHERN PLAINS LATER TONIGHT. MEANWHILE...A SHORTWAVE
TROUGH WILL MOVE OUT OF THE CENTRAL ROCKIES THIS MORNING...AND SPIN
ACROSS THE BOUNDARY TONIGHT. INSTABILITY WILL BUILD ACROSS THE AREA
THIS AFTERNOON AHEAD OF THAT SINKING FRONT...WITH SBCAPES CLIMBING
TO 2000-2500 C/KM. PRETTY GOOD SHEAR INDICATED AROUND THE
BOUNDARY...40+ KTS IN THE 0-3 KM LAYER. WITH SFC TDS AROUND 70...AND
PW/S CLOSING IN ON 2 INCHES...IT WOULD SEEM SHOWERS/THUNDERSTORMS
WOULD BE A PRETTY GOOD BET THIS AFTERNOON. HOWEVER...THE WARM
LOW/MID LEVEL AIR WILL STILL BE IN PLACE AHEAD OF THE FRONT...WITH
THOSE 700 MB TEMPS NOT FALLING OFF TO 8 C UNTIL 00Z TONIGHT. THIS
SHOULD EFFECTIVELY CAP THE ATMOSPHERE ACROSS THE FORECAST AREA
INTO THE EARLY PART OF THE AFTERNOON. EXPECT THIS TO BREAK DOWN BY
MID/LATE AFTERNOON WITH THE APPROACH OF THAT FRONT...AND A LINE OF
SHOWERS/STORMS SHOULD BE PUSHING INTO THE AREA BY LATE
AFTERNOON/EARLY EVENING. SOME OF THESE STORMS WILL HAVE THE
POTENTIAL TO BECOME SEVERE. ANY STORM THAT DEVELOPS WOULD BE CAPABLE
OF PRODUCING HEAVY RAIN. AS WE WORK INTO TONIGHT AND THAT FRONT
SLIDES ACROSS THE FORECAST AREA...THE FOCUS LOOKS TO SHIFT MORE
SOUTHWEST ON THE BOUNDARY. THE MAIN 850 LOW LEVEL JET NOSES INTO THE
EASTERN GREAT LAKES TONIGHT...BUT ANOTHER JET MAX POINTS INTO
SOUTHWEST IA BY 06Z. THE 500 MB SHORTWAVE TROUGH LOOKS TO BE IN THIS
AREA BY THIS TIME ALSO. WOULD EXPECT MOST OF THE CONVECTIVE
DEVELOPMENT TO SHIFT TO THIS AREA TONIGHT AS A RESULT...RIDING THE
FRONT NORTHEAST INTO THE FORECAST AREA. THIS ALSO PLACES THE HIGHEST
THREAT FOR APPRECIABLE RAINFALL OVER IOWA. WHILE PW/S ARE STILL
AROUND 2 INCHES...THE 850 MB MOISTURE TRANSPORT IS RELATIVELY
WEAK...COMPARATIVELY TO THE RECENT HEAVY RAIN EVENTS. AGAIN
THOUGH...THE THUNDERSTORMS WILL BE CAPABLE OF PRODUCING HEAVY RAIN
AT TIMES...WITH GENERAL TOTALS THROUGH TONIGHT OF 1 TO 2
INCHES...WITH LOCALLY HIGH AMOUNTS POSSIBLE. IN THE FORECAST AREA
...THE GREATEST HEAVY RAIN THREAT WOULD LIE ACROSS NORTHEAST IA AND
SOUTHWEST WI.

UNDER NORMAL CIRCUMSTANCES...THE BIGGEST WEATHER CONCERN FOR TODAY
AND TONIGHT WOULD BE THAT SEVERE WEATHER THREAT...WITH HAIL AND
DAMAGING WINDS. HOWEVER...WITH MANY AREA GROUNDS STILL SOAKED FROM
THE RECENT RAINFALL OVER THE PAST WEEK AND A HALF...CIRCUMSTANCES
ARE NOT NORMAL. WHILE TOTALS OF 1 TO 2 INCHES CURRENTLY LOOK
POSSIBLE...ANY HEAVY RAINFALL OVER A SHORT PERIOD OF TIME COULD LEAD
TO MORE WATER PROBLEMS...AND FLASH FLOODING. SO...EVEN THOUGH TOTALS
ARE NOT EXPECTED TO BE ALL THAT EXCEPTIONAL...THE THREAT FOR FLASH
FLOODING IS THERE. THEREFORE...WILL GO WITH A FLASH FLOOD WATCH FOR
TONIGHT...GENERALLY ALONG AND SOUTH OF AN AUSTIN MN TO CALEDONIA TO
RICHLAND CENTER WI LINE.

ON WEDNESDAY...SOME PCPN MAY LINGER ACROSS THE FAR SOUTH
EARLY...OTHERWISE HIGH PRESSURE WILL START TO BUILD IN FROM THE
NORTHERN PLAINS. LOOK FOR DECREASING CLOUDS THROUGH THE DAY AS A
RESULT...WITH SOME QUIETER AND DRIER WEATHER THEN FOR THU.

.LONG TERM...FRIDAY THROUGH MONDAY

THE GFS AND ECMWF CONTINUE TO POINT TO A MOSTLY ZONAL 500 MB FLOW
FOR THE UPCOMING HOLIDAY WEEKEND...WHICH SHOULD RESULT IN TEMPS AT
OR ABOVE THE SEASONABLE NORMALS. MORE IMPORTANTLY...THE DRY
CONDITIONS LOOK LIKE THEY WILL CONTINUE FOR THE MOST PART...WITH A
SFC HIGH CONTINUING TO INFLUENCE THE REGION. THAT SAID...THE HIGH
DOES LOOK TO SLIDE EAST ON SUNDAY...WITH A FRONTAL BOUNDARY DRAGGING
ACROSS THE UPPER MISSISSIPPI RIVER VALLEY FOR SUN/MON. THIS BOUNDARY
IS ASSOCIATED WITH A SHORTWAVE TROUGH TRACKING EAST ACROSS SOUTHERN
CANADA...BUT THE BULK OF THE FORCING WITH THE SYSTEM LOOKS TO HOLD
NORTH WITH THE TROUGH. THERE WILL BE SOME SATURATION ON THE SOUTHERN
END OF THIS SYSTEM FOR THE FRONT TO WORK WITH...ENOUGH FOR SMALL
POPS TO THE NORTH AND EAST.

&&

.AVIATION...

A FRONTAL BOUNDARY WILL SINK SOUTHWARD ACROSS THE AREA
TODAY...SLIPPING SOUTH OF THE TAF SITES BY 00Z. AHEAD OF THE
FRONT...WARM AIR WILL KEEP A CAP ON THE PCPN THREAT INTO THE EARLY
AFTERNOON...WITH CHANCES INCREASING FOR SHRA/TSRA AFTER 21Z. PERIODS
OF THUNDERSTORMS CAN BE EXPECTED TONIGHT...RESULTING IN SOME MVFR
CONDITIONS FROM TIME TO TIME. STRONG WIND GUSTS WILL ALSO BE
POSSIBLE WITH ANY STORM. THE BULK OF THIS ACTIVITY SHOULD SHIFT
SOUTH BY 12Z WED. BEHIND THE FRONT...SOME MVFR STRATUS AND FOG MAY
DEVELOP...LIKELY AFFECTING KRST AND KLSE TOWARD 12Z.

&&

.ARX WATCHES/WARNINGS/ADVISORIES...
WI...FLASH FLOOD WATCH FROM THIS EVENING THROUGH WEDNESDAY MORNING
     FOR WIZ053-WIZ054-WIZ055-WIZ061.

MN...FLASH FLOOD WATCH FROM THIS EVENING THROUGH WEDNESDAY MORNING
     FOR MNZ094-MNZ095-MNZ096.

IA...FLASH FLOOD WATCH FROM THIS EVENING THROUGH WEDNESDAY MORNING
     FOR IAZ008-IAZ009-IAZ010-IAZ011-IAZ018-IAZ019-IAZ029-IAZ030.

&&

RIECK
Hazardous weather outlook, Aug 28, 3:45 AM CDT, 23 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LA CROSSE WI
345 AM CDT TUE AUG 28 2007

IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029-032>034-
041>044-053>055-061-291100-
ADAMS-ALLAMAKEE-BUFFALO-CHICKASAW-CLARK-CLAYTON-CRAWFORD-DODGE-
FAYETTE-FILLMORE-FLOYD-GRANT-HOUSTON-HOWARD-JACKSON-JUNEAU-LA CROSSE-
MITCHELL-MONROE-MOWER-OLMSTED-RICHLAND-TAYLOR-TREMPEALEAU-VERNON-
WABASHA-WINNESHIEK-WINONA-
345 AM CDT TUE AUG 28 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PARTS OF SOUTHEAST MINNESOTA...
NORTHEAST IOWA...AND SOUTHWEST INTO CENTRAL WISCONSIN.

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS ARE EXPECTED TO BE ONGOING EARLY THIS MORNING ACROSS
AREAS NORTH OF HIGHWAY 10 IN NORTH CENTRAL WISCONSIN. HAIL UP
TO AN INCH IN DIAMETER...ALONG WITH WIND GUSTS OF 60 MPH ARE
POSSIBLE. IN ADDITION...LOCALLY HEAVY RAINFALL IS EXPECTED...WHICH
COULD CAUSE RUNOFF PROBLEMS...ESPECIALLY IN URBAN AND LOW LYING
AREAS. THUNDERSTORMS ARE EXPECTED TO MOVE OUT OF NORTH CENTRAL
WISCONSIN BY 7 AM THIS MORNING.

A COLD FRONT SLIDING SOUTHWARD SHOULD TRIGGER MORE THUNDERSTORMS
FOR MUCH OF THE AREA LATE THIS AFTERNOON AND INTO TONIGHT. DAMAGING
WINDS...LARGE HAIL AND LOCALLY HEAVY RAINFALL ARE POSSIBLE. TIMING
OF THESE THREATS SHOULD BE FROM 4 PM THIS AFTERNOON INTO THE EARLY
MORNING HOURS OF WEDNESDAY. LOCATIONS THAT RECEIVED EXCESSIVE
RAINFALL IN THE LAST WEEK OR SO AND THUS HAVE SATURATED SOILS...
SUCH AS PARTS OF SOUTHEAST MINNESOTA...NORTHEAST IOWA AND SOUTHWEST
WISCONSIN...COULD EXPERIENCE FLASH FLOODING.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

THE COLD FRONT WILL CONTINUE TRACKING SOUTHWARD AND SHOULD EXIT
WEDNESDAY MORNING. ANY LINGERING THUNDERSTORMS WEDNESDAY MORNING
SHOULD NOT BE SEVERE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WOULD BE APPRECIATED EARLY THIS MORNING IN AREAS
NORTH OF HIGHWAY 10 IN NORTH CENTRAL WISCONSIN. MORE WIDESPREAD
SPOTTER ACTIVATION MAY BE NECESSARY THIS AFTERNOON AND INTO THE EARLY
MORNING HOURS OF WEDNESDAY...SO KEEP ABREAST OF LATER UPDATES. DUE TO
THE THREAT OF LOCALLY HEAVY RAIN...RAINFALL REPORTS...AS WELL AS
REPORTS OF ANY FLOODING...WOULD BE GREATLY APPRECIATED.

.EMERGENCY MANAGEMENT COORDINATION...

NO CALL IS SCHEDULED.

THOMPSON

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 28, 5:43 PM CDTSevere Thunderstorm WarningARXHouston32 min
Aug 28, 4:18 AM CDTSevere Thunderstorm WarningARXTaylor72 min
Aug 28, 1:44 PM CDTSevere Thunderstorm WarningARXTaylor61 min
Aug 28, 2:29 PM CDTSevere Thunderstorm WarningARXTaylor46 min

Nearby

Flash Flood Watches in Iowa, 2007Flash Flood Watches in Minnesota, 2007Flash Flood Watches in Wisconsin, 2007Every flash flood watch in 2007

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; radar from the NEXRAD Level II archive.