Alert archive / Iowa / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 129, NWS La Crosse, WI

August 22, 2007Fayette County, Iowa

NWS La Crosse, WI issued this severe thunderstorm warning at Aug 22, 2007, 3:17 PM CDT for Fayette County, Iowa. It was in force for 58 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 22, 2007, 3:17 PM CDT (20:17 UTC)
Expired
Aug 22, 2007, 4:15 PM CDT
In force
58 min
Issued by
NWS La Crosse, WI
Area
Counties, with a storm outline in the text

County Fayette County, IA

The radar

The La Crosse radar (KARX), 111 km from the middle of the area, began a volume at 20:19 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 8.3 hours before the alert went out and 188 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, Davenport, at 12:00Z on 2007-08-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 284 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, Davenport, at 12:00Z on 2007-08-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 87 square meters per square second.193958Sfc1 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
284 J/kg
Mixed-layer CIN
-437 J/kg
Mixed-layer LCL
1242 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
87 m²/s²
0-3 km storm-relative helicity
119 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KARX 222018
SVRARX
IAC065-222115-
/O.NEW.KARX.SV.W.0129.070822T2017Z-070822T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
317 PM CDT WED AUG 22 2007

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN FAYETTE COUNTY IN NORTHEAST IOWA...

* UNTIL 415 PM CDT

* AT 315 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH...ROUGHLY ALONG A LINE EXTENDING FROM
  FREDERICKSBURG TO SUMNER...AND MOVING EAST AT 30 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  WEST UNION AROUND 345 PM...

HEAVY RAIN WILL ACCOMPANY THIS STORM AS WELL...WITH LOCAL STREET 
FLOODING POSSIBLE. FOR YOUR PROTECTION...MOVE TO AN INTERIOR ROOM ON 
THE LOWEST FLOOR OF YOUR HOME OR BUSINESS AND STAY AWAY FROM WINDOWS.

LAT...LON 4309 9176 4280 9161 4278 9203 4278 9208
      4298 9209 4308 9200 4308 9181

$$

BAUMGARDT
5 follow-up statements
000 
WWUS53 KARX 222030
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
329 PM CDT WED AUG 22 2007

IAC065-222115-
/O.CON.KARX.SV.W.0129.000000T0000Z-070822T2115Z/
FAYETTE IA-
329 PM CDT WED AUG 22 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM CDT
FOR NORTHERN FAYETTE COUNTY...

AT 220 PM...A TRAINED SPOTTER REPORTED 38 MPH WINDS AT SUMNER IN 
EASTERN BREMER COUNTY. RADAR INDICATES THE POTENTIAL FOR THIS STORM 
TO PRODUCE UP TO 60 MPH WINDS. 

AT 324 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH...ROUGHLY ALONG A LINE EXTENDING FROM
HAWKEYE TO MAYNARD...MOVING EAST AT 35 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  WEST UNION AND FAYETTE AROUND 335 PM...

TORRENTIAL RAINFALL FROM THESE STORMS MAY ALSO CAUSE THE PONDING OF
WATER ON ROADWAYS AND LOCALIZED FLOODING.

LAT...LON 4309 9176 4280 9161 4278 9203 4278 9208
      4298 9209 4308 9200 4308 9181

$$

BAUMGARDT
000 
WWUS53 KARX 222037
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
336 PM CDT WED AUG 22 2007

IAC065-222115-
/O.CON.KARX.SV.W.0129.000000T0000Z-070822T2115Z/
FAYETTE IA-
336 PM CDT WED AUG 22 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM CDT
FOR NORTHERN FAYETTE COUNTY...

AT 333 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH...ROUGHLY ALONG A LINE EXTENDING FROM WEST
UNION TO FAYETTE...MOVING EAST AT 35 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  BRAINARD AND WADENA AT 355 PM

TORRENTIAL RAINFALL FROM THESE STORMS MAY ALSO CAUSE THE PONDING OF
WATER ON ROADWAYS AND LOCALIZED FLOODING.

LAT...LON 4308 9175 4280 9161 4278 9203 4278 9208
      4298 9209 4308 9200

$$

BAUMGARDT
000 
WWUS53 KARX 222047
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
346 PM CDT WED AUG 22 2007

IAC065-222115-
/O.CON.KARX.SV.W.0129.000000T0000Z-070822T2115Z/
FAYETTE IA-
346 PM CDT WED AUG 22 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM CDT
FOR NORTHERN FAYETTE COUNTY...

AT 342 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH...ROUGHLY ALONG A LINE EXTENDING FROM WEST
UNION TO FAYETTE...MOVING EAST AT 35 MPH.

WINDS OF 34 MPH WERE REPORTED AT WEST UNION AT 337 PM. 

TORRENTIAL RAINFALL FROM THESE STORMS MAY ALSO CAUSE THE PONDING OF
WATER ON ROADWAYS AND LOCALIZED FLOODING.

LAT...LON 4308 9175 4280 9161 4278 9203 4278 9208
      4298 9209 4308 9200

$$

BAUMGARDT
000 
WWUS53 KARX 222100
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
400 PM CDT WED AUG 22 2007

IAC065-222115-
/O.CON.KARX.SV.W.0129.000000T0000Z-070822T2115Z/
FAYETTE IA-
400 PM CDT WED AUG 22 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM CDT
FOR NORTHERN FAYETTE COUNTY...

AT 356 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH...ROUGHLY ALONG A LINE EXTENDING FROM
CLERMONT TO VOLGA...MOVING EAST AT 25 MPH.

TORRENTIAL RAINFALL FROM THESE STORMS MAY ALSO CAUSE THE PONDING OF
WATER ON ROADWAYS AND LOCALIZED FLOODING.

LAT...LON 4308 9175 4280 9161 4278 9203 4278 9208
      4298 9209 4308 9200

$$

BAUMGARDT
000 
WWUS53 KARX 222107
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
407 PM CDT WED AUG 22 2007

IAC065-222117-
/O.EXP.KARX.SV.W.0129.000000T0000Z-070822T2115Z/
FAYETTE IA-
407 PM CDT WED AUG 22 2007

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN FAYETTE COUNTY
EXPIRES AT 415 PM CDT...

THE STORM WHICH PROMPTED THIS WARNING HAS MOVED OUT OF THE WARNED
AREA.

LAT...LON 4308 9175 4280 9161 4278 9203 4278 9208
      4298 9209 4308 9200

$$

BAUMGARDT

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Aug 22, 2:51 PM CDT, 26 minutes earlier.

Area forecast discussion, Aug 22, 2:51 PM CDT, 26 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LA CROSSE WI
251 PM CDT WED AUG 22 2007

SHORT TERM...TONIGHT THROUGH SATURDAY

MAIN FORECAST CONCERNS ARE POTENTIAL FOR HEAVY RAINFALL TONIGHT INTO
THURSDAY.

LATEST WATER VAPOR SATELLITE IMAGERY INDICATING VIGOROUS UPPER
LEVEL CLOSED LOW OVER NORTHERN MANITOBA CANADA. THIS IS ALLOWING
FOR WEST TO EAST ZONAL FLOW ACROSS THE NORTHERN TIER STATES. LATEST
18Z SURFACE ANALYSIS INDICATING A SURFACE FRONT EXTENDING FROM
NORTHEAST WISCONSIN INTO SOUTHEASTERN NEBRASKA. LATEST MOSAIC RADAR
INDICATING SHOWERS AND THUNDERSTORMS ALONG AND NORTH OF FRONT FROM
NORTHEAST IOWA INTO CENTRAL NEBRASKA. THIS IS IN RESPONSE TO AN
UPPER LEVEL SHORTWAVE TROUGH OVER EASTERN NEBRASKA.

THE 12Z WEDNESDAY GFS AND NAM ARE IN GOOD AGREEMENT WITH OVERALL FAST
WEST TO EAST ZONAL FLOW THROUGH PERIOD. BOTH MODELS NOT DOING WELL
IN PLACEMENT OF SHORTWAVE TROUGH OVER EASTERN NEBRASKA. BOTH MODELS
IN VERY GOOD AGREEMENT IN INCREASING THE LOW LEVEL JET...MOISTURE
TRANSPORT AND CONVERGENCE AHEAD OF UPPER LEVEL SHORTWAVE TROUGH OVER
EASTERN NEBRASKA TONIGHT. MAIN DIFFERENCES BETWEEN BOTH
THE MODELS IS THE TIMING AND PLACEMENT OF SURFACE FEATURES/SHORTWAVE
TROUGH THURSDAY NIGHT INTO FRIDAY. THE 12Z WEDNESDAY NAM FASTER AND
FARTHER SOUTH AND EAST WITH SURFACE FRONT THAN GFS.

TONIGHT INTO THURSDAY...UPPER LEVEL SHORTWAVE TROUGH OVER EASTERN
NEBRASKA MOVES EAST ALONG STATIONARY FRONT OVER CENTRAL IOWA
TONIGHT. BOTH MODELS INDICATE INCREASING LOW LEVEL JET THIS EVENING
OVER THE CENTRAL PLAINS. THIS ALLOWS FOR STRONG MOISTURE TRANSPORT
AND THETA E CONVERGENCE AT 850MB INTO NORTHERN IOWA AND SOUTHERN
WISCONSIN TONIGHT. COMBINED WITH HIGH PRECIPITABLE WATER VALUES OF
AROUND TWO INCHES...WET SOILS AND POSSIBLE HIGH RAINFALL RATES. THE
POSSIBILITY OF FLOODING WILL CONTINUE ACROSS THE SOUTHERN FORECAST
AREA. WILL CONTINUE WITH FLASH FLOOD WATCH THROUGH 15Z THURSDAY. BOTH
THE WEDNESDAY GFS AND NAM MOVE SURFACE FRONT NORTHWARD THURSDAY
MORNING AND ASSOCIATED MOISTURE TRANSPORT AND CONVERGENCE. HAVE
INCREASED PRECIPITATION CHANCES ACROSS PARTS OF NORTHERN FORECAST
AREA.

NEXT SHORTWAVE TROUGH EMBEDDED IN WEST TO EAST FLOW MOVES
INTO THE CENTRAL PLAINS THURSDAY NIGHT AND INTO FRIDAY. THE 12Z
WEDNESDAY GFS INDICATES SURFACE FRONT OVER SOUTHEAST WISCONSIN INTO
NORTHEASTERN KANSAS BY 12Z FRIDAY...12Z WEDNESDAY NAM FARTHER
SOUTH AND EAST THAN GFS. BOTH MODELS CONTINUE TO INDICATE STRONG
MOISTURE TRANSPORT AND CONVERGENCE AT 850MB OVERRUNNING SURFACE
FRONT. WITH MODEL DIFFERENCES WITH PLACEMENT OF SURFACE FRONT...
CONFIDENCE IS LOWER THURSDAY NIGHT INTO FRIDAY. HAVE INCREASED
PRECIPITATION CHANCES ACROSS SOUTHERN FORECAST AREA.

BOTH MODELS IN GOOD AGREEMENT IN BUILDING SURFACE RIDGE INTO
FORECAST AREA BY 18Z SATURDAY. GOOD SUBSIDENCE UNDERNEATH RIDGE WILL
ALLOW FOR DRY CONDITIONS ACROSS FORECAST AREA.

LONG TERM...SATURDAY NIGHT THROUGH WEDNESDAY

MAIN FORECAST CONCERNS ARE PRECIPITATION CHANCES
TUESDAY...THEN TEMPERATURES THROUGH PERIOD. BOTH THE 00Z WEDNESDAY
GFS AND ECMWF ARE IN GOOD AGREEMENT WITH ZONAL FLOW THROUGH PERIOD.
MAIN DIFFERENCES BETWEEN THE MODELS IS THE TIMING OF SHORTWAVE
TROUGHS EARLY NEXT WEEK. 00Z WEDNESDAY GFS SLIGHTLY FASTER WITH
FIRST SHORTWAVE TROUGH MONDAY THAN ECMWF. 00Z WEDNESDAY GFS
ENSEMBLE MEAN AND ECMWF ARE IN BETTER AGREEMENT IN TIMING OF
SHORTWAVE TROUGHS EARLY NEXT WEEK. WILL FOLLOW CLOSER TO ECMWF AND
GFS ENSEMBLE MEAN THROUGH PERIOD. SHORTWAVE RIDGE BUILDS INTO THE
UPPER MIDWEST AND GREAT LAKES REGION SATURDAY NIGHT INTO MONDAY.
THIS WILL ALLOW MAIN ENERGY FROM ANY EMBEDDED SHORTWAVE TROUGHS TO
BE NORTH OF FORECAST AREA. WILL GO WITH DRY FORECAST FROM SATURDAY
NIGHT INTO MONDAY. STRONGER SHORTWAVE TROUGH MOVES ACROSS THE
NORTHERN PLAINS AND UPPER MIDWEST TUESDAY INTO WEDNESDAY. 00Z
WEDNESDAY ECMWF INDICATES STRONG MOISTURE TRANSPORT AND CONVERGENCE
INTO FORECAST AREA. 00Z WEDNESDAY GFS ENSEMBLES INDICATING
PROBABILITY OF OVER 30 PERCENT OF MEASURABLE PRECIPITATION. WILL
CONTINUE WITH CHANCES OF PRECIPITATION TUESDAY INTO WEDNESDAY.

.AVIATION...

CONTINUED FOCUS ON TRYING TO TIME ROUNDS OF CONVECTION AT TAF SITES.
MVFR CONDITIONS OVER MUCH OF THE AREA EXCEPT NEAR SHOWERS AND
THUNDERSTORMS THAT MAY BE AROUND MUCH OF THE EVENING. POSSIBLE BREAK
FOR A SHORT PERIOD TONIGHT MAY LEAD TO MORE DEVELOPMENT IF MOISTURE
TRANSPORT BACK ACROSS STALLED FRONT HELPS CREATE MORE STORMS. ALSO
CHANCE THAT HEAVIEST CONVECTION REMAINS ACROSS CENTRAL IOWA LIMITING
DEVELOPMENT CLOSER TO INTERSTATE 90 AND HENCE MORE IMPROVED
CONDITIONS.

.ARX WATCHES/WARNINGS/ADVISORIES...

WI...FLASH FLOOD WATCH FROM 7 PM CDT THIS EVENING THROUGH THURSDAY
     MORNING FOR WIZ041-WIZ053-WIZ054-WIZ055-WIZ061.

MN...FLASH FLOOD WATCH FROM 7 PM CDT THIS EVENING THROUGH THURSDAY
     MORNING FOR MNZ079-MNZ086-MNZ087-MNZ088-MNZ094-MNZ095-
     MNZ096.

IA...FLASH FLOOD WATCH FROM 7 PM CDT THIS EVENING THROUGH THURSDAY
     MORNING FOR IAZ008-IAZ009-IAZ010-IAZ011-IAZ018-IAZ019-
     IAZ029-IAZ030.

SHORT-LONG TERM...DTJ
AVIATION..........SHEA

&&
Hazardous weather outlook, Aug 22, 10:05 AM CDT, 5 hours 12 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LA CROSSE WI
1005 AM CDT WED AUG 22 2007

IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ041-053>055-
061-231100-
ALLAMAKEE-CHICKASAW-CLAYTON-CRAWFORD-DODGE-FAYETTE-FILLMORE-FLOYD-
GRANT-HOUSTON-HOWARD-LA CROSSE-MITCHELL-MOWER-OLMSTED-RICHLAND-
VERNON-WABASHA-WINNESHIEK-WINONA-
1005 AM CDT WED AUG 22 2007

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

A FLASH FLOOD WATCH IS IN EFFECT FOR TONIGHT. A FRONTAL BOUNDARY
REMAINS ACROSS THE REGION AND CONTINUES TO HELP TRIGGER
THUNDERSTORMS WITH VERY HEAVY RAIN. SOME OF THIS RAIN IS ALREADY
ACROSS NORTHWEST AND NORTH CENTRAL IOWA...MOVING INTO THE AREA.
ADDITIONAL DEVELOPMENT ACROSS NORTHERN IOWA INTO SOUTHWEST WISCONSIN
IS ALSO EXPECTED THROUGH THE AFTERNOON AND ESPECIALLY THIS EVENING.
WIDESPREAD RAINFALL OF 1 TO 3 INCHES IS POSSIBLE AGAIN WITH LOCALLY
HIGHER AMOUNTS WHICH WILL CERTAINLY LEAD TO ADDITIONAL FLASH FLOOD
RELATED PROBLEMS. MANY AREA RIVERS ARE HIGH OR FLOODING AS WELL SO
THIS WILL ONLY CAUSE ADDITIONAL PROBLEMS.

A FEW OF THESE STORMS MAY ALSO PRODUCE SOME STRONG WINDS OR LARGE
HAIL BUT AGAIN...THE MAIN FOCUS WILL BE ON THE HEAVY RAIN THREAT.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

ANOTHER SHOT AT THUNDERSTORMS IS EXPECTED THURSDAY AFTERNOON AND
EVENING WITH MORE HEAVY RAIN POSSIBLE. AGAIN...FLASH FLOODING WILL
BE THE MAIN THREAT OF CONCERN...ALTHOUGH HIGH WIND AND LARGE HAIL
MAY ALSO ACCOMPANY STORMS.

.SPOTTER INFORMATION STATEMENT...

REPORTS OF FLASH FLOODS...MUD SLIDES OR SIGNIFICANT HEAVY RAIN WOULD
BE APPRECIATED BY SPOTTERS OR EMERGENCY MANAGEMENT PERSONNEL.
THE MOST ACTIVE PERIOD WILL LIKELY BE TONIGHT. SPOTTERS MAY ALSO BE
NEEDED IF LARGE HAIL OR DAMAGING WIND DEVELOPS BUT CERTAINITY IN
THAT IS RELATIVELY LOW.

.EMERGENCY MANAGEMENT COORDINATION...

A CONFERENCE CALL IS SCHEDULED FOR 130 PM TODAY TO DISCUSS EXPECTED
RAINFALL TONIGHT AND CURRENT RIVER LEVELS.

WIZ017-029-032>034-042>044-231100-
ADAMS-BUFFALO-CLARK-JACKSON-JUNEAU-MONROE-TAYLOR-TREMPEALEAU-
1005 AM CDT WED AUG 22 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PARTS OF WESTERN AND CENTRAL
WISCONSIN.

.DAY ONE...THIS AFTERNOON AND TONIGHT

A STATIONARY FRONTAL BOUNDARY IS EXPECTED TO REMAIN IN PLACE ACROSS
NORTHERN IOWA AND NORTHERN ILLINOIS THROUGH TONIGHT. THUNDERSTORMS
WILL MOVE NORTHEAST OUT OF IOWA AND ACROSS THE AREA TODAY AS MOIST
AND UNSTABLE AIR SURGES NORTH ACROSS THE FRONTAL BOUNDARY. A FEW OF
THE STORMS COULD PRODUCE LOCALLY HEAVY RAINS...WITH A FEW LOCATIONS
SEEING 1 TO 2 INCHES OF RAIN. THERE IS A SMALL CHANCE OF A FEW
STORMS PRODUCING HAIL AND STRONG WINDS BUT RAIN MAY BE THE BIGGEST
THREAT.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

LOW PRESSURE WILL MOVE NORTHEAST FROM THE CENTRAL PLAINS AND ACROSS
THE UPPER MIDWEST THURSDAY THROUGH FRIDAY. THIS WILL CONTINUE TO
PRODUCE A CHANCE OF THUNDERSTORMS ACROSS THE AREA. THERE IS A SLIGHT
RISK OF SEVERE STORMS THURSDAY AFTERNOON AND EVENING FOR LOCATIONS
SOUTH OF MONDOVI TO NEILLSVILLE. LARGE HAIL AND DAMAGING WINDS
WOULD BE THE MAIN THREATS.

IT IS STILL TOO EARLY TO DETERMINE THE EXACT TIMING AND DETAILS OF
ANY SEVERE STORM THREATS FRIDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED TODAY OR TONIGHT...BUT MAY BE
NEEDED THURSDAY AFTERNOON AND EVENING. REPORTS OF ANY HEAVY RAINS
WOULD BE GREATLY APPRECIATED.

.EMERGENCY MANAGEMENT COORDINATION...

NO CALL IS SCHEDULED.

SHEA

In the hours before

Local storm report, Aug 22, 11:08 AM CDT, 4 hours 9 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE LA CROSSE WI
1108 AM CDT WED AUG 22 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1030 PM     TSTM WND DMG     NEW HAMPTON             43.06N 92.31W
08/21/2007                   CHICKASAW          IA   PUBLIC

            TREE SNAPPED 20 FT UP. SNAPPED POWER LINES. GRADEN
            TRAILER AND MOWER THROWN. RELAYED VIA SHERIFF.

1100 PM     FLASH FLOOD      CRESCO                  43.37N 92.12W
08/21/2007                   HOWARD             IA   LAW ENFORCEMENT

            SHERIFF REPORTED THAT GRAVEL ROADS HAD WASHOUTS SPREAD
            THROUGH THE COUNTY. TIME ESTIMATED.

1130 PM     FLASH FLOOD      2 SE BLUFFTON           43.38N 91.91W
08/21/2007                   WINNESHIEK         IA   LAW ENFORCEMENT

            SCENIC RIVER ROAD DAMAGED BY WATER. TRAVEL NOT
            RECOMMENDED. TIME ESTIMATED.

1130 PM     FLASH FLOOD      2 N BLUFFTON            43.43N 91.93W
08/21/2007                   WINNESHIEK         IA   LAW ENFORCEMENT

            COUNTY W20 OPEN BUT DAMAGED BY WATER. NOT RECOMMEDNED FOR
            TRAVEL. TIME ESTIMATED.

1130 PM     FLASH FLOOD      2 N RIDGEWAY            43.33N 91.99W
08/21/2007                   WINNESHIEK         IA   LAW ENFORCEMENT

            COUNTY W14 DAMAGED DUE TO HEAVY RAINFALL. TRAVEL NOT
            RECOMMENDED. TIME ESTIMATED.

1135 PM     TSTM WND GST     CHARLES CITY            43.07N 92.68W
08/21/2007  E50.00 MPH       FLOYD              IA   LAW ENFORCEMENT

            2-3 INCH TREE LIMBS DOWN. AWOS AT AIRPORT REPORTED 22 MPH
            PEAK GUST. RADAR INDICATED BOWING BEGAN ON EASTERN EDGE
            OF COUNTY.

1145 PM     HEAVY RAIN       1 E VICTORY             43.48N 91.20W
08/21/2007  M0.00 INCH       VERNON             WI   CO-OP OBSERVER

            2.48 INCHES IN 20-30 MINUTES.

1145 PM     TSTM WND DMG     1 E VICTORY             43.48N 91.20W
08/21/2007                   VERNON             WI   CO-OP OBSERVER

            TREE DOWN ON ROOF OF HOUSE WITH HOUSE ALSO SUSTAINING
            SHINGLE AND FACIA DAMAGE. POWER LINES DOWN...POWER
            REMAINS OUT AS OF 930 AM AUG 22.

1145 PM     TSTM WND DMG     1 NE CHURCHTOWN         43.36N 91.34W
08/21/2007                   ALLAMAKEE          IA   DEPT OF HIGHWAYS

            18 TREES DOWN ACROSS MAYS PRAIRIE ROAD NORTH OF HIGHWAY
            9. ROAD CLOSED.

1200 AM     FLASH FLOOD      5 NW WAUKON             43.32N 91.55W
08/22/2007                   ALLAMAKEE          IA   LAW ENFORCEMENT

            ONEILL RIDGE ROAD CLOSED DUE TO WATER ISSUES. THAT
            REMAINED CLOSED AT 1030 AM AUG 22. PARTIAL ROAD CLOSURES
            THROUGH THE REMAINDER OF THE COUNTY DUE TO RAINFALL. TIME
            ESTIMATED.

1210 AM     TSTM WND DMG     8 SW VIROQUA            43.48N 91.00W
08/22/2007                   VERNON             WI   EMERGENCY MNGR

            BARN...SILO...HOUSE AND TREES DAMAGED IN HORNBY HOLLOW.
            NWS SURVEYED DAMAGE FOR POSSIBLE TORNADO. CORN FLATTENED
            IN MANY FIELDS...OUT BUILDING ROOF BLOWN OFF. DAMAGE WAS
            FROM STRAIGHT LINE WINDS ESTIMATED AT 60-70 MPH.

0100 AM     FLASH FLOOD      4 NNE STODDARD          43.71N 91.19W
08/22/2007                   VERNON             WI   NWS EMPLOYEE

            THREE MUDSLIDES ALONG COUNTY K...ONE WAS ON ROADSIDE.
            PARTIAL WASHOUT OF SUNSHINE DRIVE WHICH WAS REPAIRED
            EARLIER IN THE DAY...3 FOOT GULLY INTO LANE EDGE OF ROAD.
            TIME ESTIMATED.

&&

DANB
Local storm report, Aug 22, 11:12 AM CDT, 4 hours 5 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE LA CROSSE WI
1112 AM CDT WED AUG 22 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0855 PM     HAIL             AUSTIN                  43.67N 92.97W
08/21/2007  E1.00 INCH       MOWER              MN   EMERGENCY MNGR

0855 PM     HAIL             AUSTIN                  43.67N 92.97W
08/21/2007  M1.00 INCH       MOWER              MN   EMERGENCY MNGR

0855 PM     HAIL             AUSTIN                  43.67N 92.97W
08/21/2007  E1.00 INCH       MOWER              MN   EMERGENCY MNGR

0855 PM     HAIL             2 E AUSTIN              43.67N 92.93W
08/21/2007  E1.75 INCH       MOWER              MN   EMERGENCY MNGR

0904 PM     HAIL             2 E AUSTIN              43.67N 92.93W
08/21/2007  E1.75 INCH       MOWER              MN   EMERGENCY MNGR

0904 PM     HAIL             2 E AUSTIN              43.67N 92.93W
08/21/2007  E1.75 INCH       MOWER              MN   EMERGENCY MNGR

0912 PM     HAIL             DEXTER                  43.72N 92.70W
08/21/2007  E1.00 INCH       MOWER              MN   LAW ENFORCEMENT

0924 PM     HAIL             3 W RACINE              43.78N 92.54W
08/21/2007  E0.88 INCH       MOWER              MN   FIRE DEPT/RESCUE

            REPORTED BY STEWARTVILLE FIRE DEPARTMENT STORM SPOTTERS.

0927 PM     HAIL             RACINE                  43.78N 92.48W
08/21/2007  E1.00 INCH       MOWER              MN   TRAINED SPOTTER

            NICKEL TO QUARTER SIZED HAIL FELL FOR NEARLY 10 MINUTES.

1008 PM     FLASH FLOOD      AUSTIN                  43.67N 92.97W
08/21/2007                   MOWER              MN   BROADCAST MEDIA

            KAAL-TV REPORTED STREET FLOODING ON 4TH STREET NEAR
            INTERSTATE 90.

1018 PM     TSTM WND GST     1 E CHARLES CITY        43.07N 92.66W
08/21/2007  M51.00 MPH       FLOYD              IA   AWOS

1020 PM     FLASH FLOOD      AUSTIN                  43.67N 92.97W
08/21/2007                   MOWER              MN   BROADCAST MEDIA

            KAAL TV REPORTED FLOODING ALONG OAKLAND AVENUE

1030 PM     FLASH FLOOD      SPRING VALLEY           43.69N 92.39W
08/21/2007                   FILLMORE           MN   LAW ENFORCEMENT

            PART OF BASEMENT WALL COLLAPSED IN A HOUSE

1030 PM     TSTM WND DMG     NEW HAMPTON             43.06N 92.31W
08/21/2007                   CHICKASAW          IA   PUBLIC

            TREE SNAPPED 20 FT UP. SNAPPED POWER LINES. GRADEN
            TRAILER AND MOWER THROWN. RELAYED VIA SHERIFF.

1035 PM     HEAVY RAIN       SPRING VALLEY           43.69N 92.39W
08/21/2007  M2.50 INCH       FILLMORE           MN   AMATEUR RADIO

            MOST OF THAT RAIN FELL DURING THE PAST HOUR.

1035 PM     FLASH FLOOD      SPRING VALLEY           43.69N 92.39W
08/21/2007                   FILLMORE           MN   LAW ENFORCEMENT

            STREET FLOODING REPORTED

1100 PM     FLASH FLOOD      CRESCO                  43.37N 92.12W
08/21/2007                   HOWARD             IA   LAW ENFORCEMENT

            SHERIFF REPORTED THAT GRAVEL ROADS HAD WASHOUTS SPREAD
            THROUGH THE COUNTY. TIME ESTIMATED.

1115 PM     TSTM WND DMG     HANOVER                 43.36N 91.53W
08/21/2007                   ALLAMAKEE          IA   LAW ENFORCEMENT

            CAR BLOWN INTO A DITCH

1119 PM     TSTM WND DMG     DECORAH                 43.31N 91.79W
08/21/2007                   WINNESHIEK         IA   LAW ENFORCEMENT

            SEVERAL TREES BLOWN DOWN

1124 PM     TSTM WND DMG     2 NW EITZEN             43.53N 91.49W
08/21/2007                   HOUSTON            MN   LAW ENFORCEMENT

            POWER LINE BLOWN DOWN

1127 PM     TSTM WND GST     VILLAGE CREEK           43.32N 91.25W
08/21/2007  E50.00 MPH       ALLAMAKEE          IA   LAW ENFORCEMENT

1130 PM     FLASH FLOOD      2 N RIDGEWAY            43.33N 91.99W
08/21/2007                   WINNESHIEK         IA   LAW ENFORCEMENT

            COUNTY W14 DAMAGED DUE TO HEAVY RAINFALL. TRAVEL NOT
            RECOMMENDED. TIME ESTIMATED.

1130 PM     FLASH FLOOD      2 N BLUFFTON            43.43N 91.93W
08/21/2007                   WINNESHIEK         IA   LAW ENFORCEMENT

            COUNTY W20 OPEN BUT DAMAGED BY WATER. NOT RECOMMEDNED FOR
            TRAVEL. TIME ESTIMATED.

1130 PM     FLASH FLOOD      2 SE BLUFFTON           43.38N 91.91W
08/21/2007                   WINNESHIEK         IA   LAW ENFORCEMENT

            SCENIC RIVER ROAD DAMAGED BY WATER. TRAVEL NOT
            RECOMMENDED. TIME ESTIMATED.

1135 PM     TSTM WND GST     CHARLES CITY            43.07N 92.68W
08/21/2007  E50.00 MPH       FLOYD              IA   LAW ENFORCEMENT

            2-3 INCH TREE LIMBS DOWN. AWOS AT AIRPORT REPORTED 22 MPH
            PEAK GUST. RADAR INDICATED BOWING BEGAN ON EASTERN EDGE
            OF COUNTY.

1145 PM     HEAVY RAIN       1 E VICTORY             43.48N 91.20W
08/21/2007  M0.00 INCH       VERNON             WI   CO-OP OBSERVER

            2.48 INCHES IN 20-30 MINUTES.

1145 PM     TSTM WND DMG     1 E VICTORY             43.48N 91.20W
08/21/2007                   VERNON             WI   CO-OP OBSERVER

            TREE DOWN ON ROOF OF HOUSE WITH HOUSE ALSO SUSTAINING
            SHINGLE AND FACIA DAMAGE. POWER LINES DOWN...POWER
            REMAINS OUT AS OF 930 AM AUG 22.

1145 PM     TSTM WND DMG     1 NE CHURCHTOWN         43.36N 91.34W
08/21/2007                   ALLAMAKEE          IA   DEPT OF HIGHWAYS

            18 TREES DOWN ACROSS MAYS PRAIRIE ROAD NORTH OF HIGHWAY
            9. ROAD CLOSED.

1150 PM     TSTM WND DMG     DE SOTO                 43.43N 91.20W
08/21/2007                   VERNON             WI   LAW ENFORCEMENT

            TREES AND POWER LINES BLOWN DOWN

1200 AM     FLASH FLOOD      5 NW WAUKON             43.32N 91.55W
08/22/2007                   ALLAMAKEE          IA   LAW ENFORCEMENT

            ONEILL RIDGE ROAD CLOSED DUE TO WATER ISSUES. THAT
            REMAINED CLOSED AT 1030 AM AUG 22. PARTIAL ROAD CLOSURES
            THROUGH THE REMAINDER OF THE COUNTY DUE TO RAINFALL. TIME
            ESTIMATED.

1200 AM     FLASH FLOOD      CALEDONIA               43.63N 91.50W
08/22/2007                   HOUSTON            MN   LAW ENFORCEMENT

            WATER OVER THE ROAD NEAR GREEN ACRES

1205 AM     TSTM WND DMG     VIROQUA                 43.56N 90.89W
08/22/2007                   VERNON             WI   AMATEUR RADIO

            TREES AND POWER LINES BLOWN DOWN

1210 AM     TSTM WND DMG     8 SW VIROQUA            43.48N 91.00W
08/22/2007                   VERNON             WI   EMERGENCY MNGR

            BARN...SILO...HOUSE AND TREES DAMAGED IN HORNBY HOLLOW.
            NWS SURVEYED DAMAGE FOR POSSIBLE TORNADO. CORN FLATTENED
            IN MANY FIELDS...OUT BUILDING ROOF BLOWN OFF. DAMAGE WAS
            FROM STRAIGHT LINE WINDS ESTIMATED AT 60-70 MPH.

1215 AM     TSTM WND DMG     RICHLAND CENTER         43.34N 90.38W
08/22/2007                   RICHLAND           WI   LAW ENFORCEMENT

            TREES DOWN IN TOWN.

1218 AM     TSTM WND DMG     ROCKTON                 43.65N 90.60W
08/22/2007                   VERNON             WI   LAW ENFORCEMENT

            TREES AND POWER LINES DOWN.

0100 AM     FLASH FLOOD      4 NNE STODDARD          43.71N 91.19W
08/22/2007                   VERNON             WI   NWS EMPLOYEE

            THREE MUDSLIDES ALONG COUNTY K...ONE WAS ON ROADSIDE.
            PARTIAL WASHOUT OF SUNSHINE DRIVE WHICH WAS REPAIRED
            EARLIER IN THE DAY...3 FOOT GULLY INTO LANE EDGE OF ROAD.
            TIME ESTIMATED.

&&

DANB
Local storm report, Aug 22, 12:09 PM CDT, 3 hours 8 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE LA CROSSE WI
1209 PM CDT WED AUG 22 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1030 PM     TSTM WND DMG     NEW HAMPTON             43.06N 92.31W
08/21/2007                   CHICKASAW          IA   PUBLIC

            TREE SNAPPED 20 FT UP. SNAPPED POWER LINES. GARDEN
            TRAILER AND MOWER THROWN. RELAYED VIA SHERIFF.

1210 AM     TSTM WND DMG     FENNIMORE               42.98N 90.65W
08/22/2007                   GRANT              WI   PUBLIC

            TREE DOWN IN FENNIMORE

&&

DANB
Local storm report, Aug 22, 12:13 PM CDT, 3 hours 4 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE LA CROSSE WI
1213 PM CDT WED AUG 22 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0855 PM     HAIL             AUSTIN                  43.67N 92.97W
08/21/2007  E1.00 INCH       MOWER              MN   EMERGENCY MNGR

0904 PM     HAIL             2 E AUSTIN              43.67N 92.93W
08/21/2007  E1.75 INCH       MOWER              MN   EMERGENCY MNGR

0912 PM     HAIL             DEXTER                  43.72N 92.70W
08/21/2007  E1.00 INCH       MOWER              MN   LAW ENFORCEMENT

0924 PM     HAIL             3 W RACINE              43.78N 92.54W
08/21/2007  E0.88 INCH       MOWER              MN   FIRE DEPT/RESCUE

            REPORTED BY STEWARTVILLE FIRE DEPARTMENT STORM SPOTTERS.

0927 PM     HAIL             RACINE                  43.78N 92.48W
08/21/2007  E1.00 INCH       MOWER              MN   TRAINED SPOTTER

            NICKEL TO QUARTER SIZED HAIL FELL FOR NEARLY 10 MINUTES.

1008 PM     FLASH FLOOD      AUSTIN                  43.67N 92.97W
08/21/2007                   MOWER              MN   BROADCAST MEDIA

            KAAL-TV REPORTED STREET FLOODING ON 4TH STREET NEAR
            INTERSTATE 90.

1018 PM     TSTM WND GST     1 E CHARLES CITY        43.07N 92.66W
08/21/2007  M51.00 MPH       FLOYD              IA   AWOS

1020 PM     FLASH FLOOD      AUSTIN                  43.67N 92.97W
08/21/2007                   MOWER              MN   BROADCAST MEDIA

            KAAL TV REPORTED FLOODING ALONG OAKLAND AVENUE

1030 PM     FLASH FLOOD      SPRING VALLEY           43.69N 92.39W
08/21/2007                   FILLMORE           MN   LAW ENFORCEMENT

            PART OF BASEMENT WALL COLLAPSED IN A HOUSE

1030 PM     TSTM WND DMG     NEW HAMPTON             43.06N 92.31W
08/21/2007                   CHICKASAW          IA   PUBLIC

            TREE SNAPPED 20 FT UP. SNAPPED POWER LINES. GARDEN
            TRAILER AND MOWER THROWN. RELAYED VIA SHERIFF.

1035 PM     FLASH FLOOD      SPRING VALLEY           43.69N 92.39W
08/21/2007                   FILLMORE           MN   LAW ENFORCEMENT

            STREET FLOODING REPORTED

1035 PM     HEAVY RAIN       SPRING VALLEY           43.69N 92.39W
08/21/2007  M2.50 INCH       FILLMORE           MN   AMATEUR RADIO

            MOST OF THAT RAIN FELL DURING THE PAST HOUR.

1100 PM     FLASH FLOOD      CRESCO                  43.37N 92.12W
08/21/2007                   HOWARD             IA   LAW ENFORCEMENT

            SHERIFF REPORTED THAT GRAVEL ROADS HAD WASHOUTS SPREAD
            THROUGH THE COUNTY. TIME ESTIMATED.

1115 PM     TSTM WND DMG     HANOVER                 43.36N 91.53W
08/21/2007                   ALLAMAKEE          IA   LAW ENFORCEMENT

            CAR BLOWN INTO A DITCH

1119 PM     TSTM WND DMG     DECORAH                 43.31N 91.79W
08/21/2007                   WINNESHIEK         IA   LAW ENFORCEMENT

            SEVERAL TREES BLOWN DOWN

1124 PM     TSTM WND DMG     2 NW EITZEN             43.53N 91.49W
08/21/2007                   HOUSTON            MN   LAW ENFORCEMENT

            POWER LINE BLOWN DOWN

1127 PM     TSTM WND GST     VILLAGE CREEK           43.32N 91.25W
08/21/2007  E50.00 MPH       ALLAMAKEE          IA   LAW ENFORCEMENT

1130 PM     FLASH FLOOD      2 SE BLUFFTON           43.38N 91.91W
08/21/2007                   WINNESHIEK         IA   LAW ENFORCEMENT

            SCENIC RIVER ROAD DAMAGED BY WATER. TRAVEL NOT
            RECOMMENDED. TIME ESTIMATED.

1130 PM     FLASH FLOOD      2 N BLUFFTON            43.43N 91.93W
08/21/2007                   WINNESHIEK         IA   LAW ENFORCEMENT

            COUNTY W20 OPEN BUT DAMAGED BY WATER. NOT RECOMMEDNED FOR
            TRAVEL. TIME ESTIMATED.

1130 PM     FLASH FLOOD      2 N RIDGEWAY            43.33N 91.99W
08/21/2007                   WINNESHIEK         IA   LAW ENFORCEMENT

            COUNTY W14 DAMAGED DUE TO HEAVY RAINFALL. TRAVEL NOT
            RECOMMENDED. TIME ESTIMATED.

1135 PM     TSTM WND GST     CHARLES CITY            43.07N 92.68W
08/21/2007  E50.00 MPH       FLOYD              IA   LAW ENFORCEMENT

            2-3 INCH TREE LIMBS DOWN. AWOS AT AIRPORT REPORTED 22 MPH
            PEAK GUST. RADAR INDICATED BOWING BEGAN ON EASTERN EDGE
            OF COUNTY.

1145 PM     HEAVY RAIN       1 E VICTORY             43.48N 91.20W
08/21/2007  M0.00 INCH       VERNON             WI   CO-OP OBSERVER

            2.48 INCHES IN 20-30 MINUTES.

1145 PM     TSTM WND DMG     1 E VICTORY             43.48N 91.20W
08/21/2007                   VERNON             WI   CO-OP OBSERVER

            TREE DOWN ON ROOF OF HOUSE WITH HOUSE ALSO SUSTAINING
            SHINGLE AND FACIA DAMAGE. POWER LINES DOWN...POWER
            REMAINS OUT AS OF 930 AM AUG 22.

1145 PM     TSTM WND DMG     1 NE CHURCHTOWN         43.36N 91.34W
08/21/2007                   ALLAMAKEE          IA   DEPT OF HIGHWAYS

            18 TREES DOWN ACROSS MAYS PRAIRIE ROAD NORTH OF HIGHWAY
            9. ROAD CLOSED.

1150 PM     TSTM WND DMG     DE SOTO                 43.43N 91.20W
08/21/2007                   VERNON             WI   LAW ENFORCEMENT

            TREES AND POWER LINES BLOWN DOWN

1200 AM     FLASH FLOOD      5 NW WAUKON             43.32N 91.55W
08/22/2007                   ALLAMAKEE          IA   LAW ENFORCEMENT

            ONEILL RIDGE ROAD CLOSED DUE TO WATER ISSUES. THAT
            REMAINED CLOSED AT 1030 AM AUG 22. PARTIAL ROAD CLOSURES
            THROUGH THE REMAINDER OF THE COUNTY DUE TO RAINFALL. TIME
            ESTIMATED.

1200 AM     FLASH FLOOD      CALEDONIA               43.63N 91.50W
08/22/2007                   HOUSTON            MN   LAW ENFORCEMENT

            WATER OVER THE ROAD NEAR GREEN ACRES

1205 AM     TSTM WND DMG     VIROQUA                 43.56N 90.89W
08/22/2007                   VERNON             WI   AMATEUR RADIO

            TREES AND POWER LINES BLOWN DOWN

1210 AM     TSTM WND DMG     FENNIMORE               42.98N 90.65W
08/22/2007                   GRANT              WI   PUBLIC

            TREE DOWN IN FENNIMORE

1210 AM     TSTM WND DMG     8 SW VIROQUA            43.48N 91.00W
08/22/2007                   VERNON             WI   EMERGENCY MNGR

            BARN...SILO...HOUSE AND TREES DAMAGED IN HORNBY HOLLOW.
            NWS SURVEYED DAMAGE FOR POSSIBLE TORNADO. CORN FLATTENED
            IN MANY FIELDS...OUT BUILDING ROOF BLOWN OFF. DAMAGE WAS
            FROM STRAIGHT LINE WINDS ESTIMATED AT 60-70 MPH.

1215 AM     TSTM WND DMG     RICHLAND CENTER         43.34N 90.38W
08/22/2007                   RICHLAND           WI   LAW ENFORCEMENT

            TREES DOWN IN TOWN.

1218 AM     TSTM WND DMG     ROCKTON                 43.65N 90.60W
08/22/2007                   VERNON             WI   LAW ENFORCEMENT

            TREES AND POWER LINES DOWN.

0100 AM     FLASH FLOOD      4 NNE STODDARD          43.71N 91.19W
08/22/2007                   VERNON             WI   NWS EMPLOYEE

            THREE MUDSLIDES ALONG COUNTY K...ONE WAS ON ROADSIDE.
            PARTIAL WASHOUT OF SUNSHINE DRIVE WHICH WAS REPAIRED
            EARLIER IN THE DAY...3 FOOT GULLY INTO LANE EDGE OF ROAD.
            TIME ESTIMATED.

&&

DANB

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 21, 9:14 PM CDTFlash Flood WarningARXHoward, Mitchell3 hr
Aug 21, 9:50 PM CDTSevere Thunderstorm WarningARXFloyd40 min
Aug 21, 9:53 PM CDTFlash Flood WarningARXAllamakee, Winneshiek3 hr
Aug 21, 10:15 PM CDTSevere Thunderstorm WarningARXChickasaw45 min
Aug 21, 11:09 PM CDTSevere Thunderstorm WarningARXAllamakee51 min
Aug 21, 11:22 PM CDTSevere Thunderstorm WarningARXWinneshiek23 min
Aug 22, 4:18 AM CDTFlash Flood WatchARXAllamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more35 hr
Aug 22, 4:44 AM CDTRiver Flood WarningARXAllamakee35 hr

Nearby

Severe Thunderstorm Warnings in Iowa, 2007Every severe thunderstorm warning 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.