Alert archive / Iowa / Flash Flood Watches in 2007
Flash Flood Watch 8, NWS La Crosse, WI
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.
- 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
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.
&&
RIECKHazardous 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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 28, 5:43 PM CDT | Severe Thunderstorm Warning | ARX | Houston | 32 min |
| Aug 28, 4:18 AM CDT | Severe Thunderstorm Warning | ARX | Taylor | 72 min |
| Aug 28, 1:44 PM CDT | Severe Thunderstorm Warning | ARX | Taylor | 61 min |
| Aug 28, 2:29 PM CDT | Severe Thunderstorm Warning | ARX | Taylor | 46 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.