Alert archive / Minnesota / River Flood Warnings in 2013

River Flood Warning 29, NWS La Crosse, WI

May 20, 2013Mower County, Minnesota

NWS La Crosse, WI issued this river flood warning at May 20, 2013, 4:16 AM CDT for Mower County, Minnesota. It was in force for 18 hr.

The area

The outline as issued.

The facts

Issued
May 20, 2013, 4:16 AM CDT (09:16 UTC)
Expired
May 20, 2013, 9:49 PM CDT
In force
18 hr
Issued by
NWS La Crosse, WI
Area
Storm-based polygon
Flood severity
Minor

County Mower County, MN

The radar

The La Crosse radar (KARX), 137 km from the middle of the area, began a volume at 09:17 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 river

Written for the forecast point Dobbins Creek near Austin (DOBM5).

Action stage
9 ft
Minor stage
11.5 ft
Moderate stage
14 ft
Major stage
18 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05455970, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

The text

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

477 
WGUS43 KARX 200916
FLWARX
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
416 AM CDT MON MAY 20 2013

.!! INSERT SYNOPSIS HERE (OPTIONAL) !!.

RIVER FORECASTS TAKE INTO ACCOUNT BOTH OBSERVED AND FORECAST 
PRECIPITATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

 

IF YOU LIVE IN A THREATENED AREA...BE ALERT FOR HIGH OR RISING 
WATER...AND BE READY TO MOVE TO HIGHER GROUND IF NECESSARY.

DO NOT DRIVE CARS INTO FLOODED AREAS. REMEMBER...IT TAKES ONLY TWO 
FEET OF WATER TO FLOAT MOST AUTOMOBILES...INCLUDING SPORT UTILITY 
VEHICLES. TURN AROUND...DON/T DROWN.

STAY TUNED TO YOUR FAVORITE SOURCE OF WEATHER INFORMATION...INCLUDING
NOAA WEATHER RADIO...FOR LATER STATEMENTS.

ADDITIONAL RIVER AND WEATHER INFORMATION IS AVAILABLE AT...
HTTP://WWW.WEATHER.GOV/LACROSSE .

&&

MNC099-202116-
/O.NEW.KARX.FL.W.0029.130520T0916Z-130521T0249Z/
/DOBM5.1.ER.130520T0825Z.130520T0830Z.130520T0849Z.NO/
416 AM CDT MON MAY 20 2013

THE NATIONAL WEATHER SERVICE IN LA CROSSE WI HAS ISSUED A 

* FLOOD WARNING FOR 
  THE DOBBINS CREEK AT AUSTIN 2NE.
* UNTIL THIS EVENING.
* AT  3:30 AM MONDAY THE STAGE WAS 11.6 FEET. 
* FLOOD STAGE IS 11.5 FEET.
* FORECAST...THE RIVER WILL CONTINUE TO FALL...DROPPING BELOW FLOOD 
  STAGE BY THIS MORNING.

&&
 
LAT...LON 4366 9297 4368 9296 4373 9287 4374 9277 4369 9279

$$
3 follow-up statements
250 
WGUS43 KARX 200927
FLWARX
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
427 AM CDT MON MAY 20 2013

...FLOODING OCCURRING ALONG DOBBINS CREEK NEAR AUSTIN MN...

BETWEEN 3 AND 5 INCHES OF RAIN FELL ACROSS CENTRAL MOWER COUNTY ON
SUNDAY.  THIS HAS RESULTED IN MINOR FLOODING ALONG DOBBINS CREEK
NEAR AUSTIN MINNESOTA.  THE CREEK IS FORECAST TO RISE TO AROUND
11.9 FEET THIS MORNING...AND THEN FALL BELOW FLOOD STAGE THIS
AFTERNOON.

RIVER FORECASTS TAKE INTO ACCOUNT BOTH OBSERVED AND FORECAST 
PRECIPITATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU LIVE IN A THREATENED AREA...BE ALERT FOR HIGH OR RISING 
WATER...AND BE READY TO MOVE TO HIGHER GROUND IF NECESSARY.

DO NOT DRIVE CARS INTO FLOODED AREAS. REMEMBER...IT TAKES ONLY TWO 
FEET OF WATER TO FLOAT MOST AUTOMOBILES...INCLUDING SPORT UTILITY 
VEHICLES. TURN AROUND...DON/T DROWN.

STAY TUNED TO YOUR FAVORITE SOURCE OF WEATHER INFORMATION...INCLUDING
NOAA WEATHER RADIO...FOR LATER STATEMENTS.

ADDITIONAL RIVER AND WEATHER INFORMATION IS AVAILABLE AT...
HTTP://WWW.WEATHER.GOV/LACROSSE .

&&

MNC099-202127-
/O.COR.KARX.FL.W.0029.000000T0000Z-130521T1343Z/
/DOBM5.1.ER.130520T0825Z.130520T1200Z.130520T1943Z.NO/
427 AM CDT MON MAY 20 2013

* AT  3:30 AM MONDAY THE STAGE WAS 11.6 FEET. 
* FLOOD STAGE IS 11.5 FEET.
* MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST.
* FORECAST...THE RIVER WILL CONTINUE RISING TO NEAR 11.9 FEET BY THIS
  MORNING. THE RIVER WILL FALL BELOW FLOOD STAGE THIS AFTERNOON.

&&
 
LAT...LON 4366 9297 4368 9296 4373 9287 4374 9277 4369 9279

$$

BOYNE
273 
WGUS83 KARX 201625
FLSARX
 
FLOOD STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
1125 AM CDT MON MAY 20 2013

.RAINFALL AMOUNTS RANGED FROM 2 TO 6 INCHES ALONG THE CEDAR
RIVER BASIN IN SOUTHEAST MINNESOTA AND NORTHEAST IOWA. THE RUNOFF
FROM THIS RAIN WILL RESULT IN MAJOR FLOODING AT CHARLES CITY IOWA
AND MINOR FLOODING ALONG DOBBINS CREEK NEAR AUSTIN MINNESOTA.  

RIVER FORECASTS TAKE INTO ACCOUNT BOTH OBSERVED AND FORECAST 
PRECIPITATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

 

DO NOT DRIVE CARS INTO FLOODED AREAS. REMEMBER...IT TAKES ONLY TWO 
FEET OF WATER TO FLOAT MOST AUTOMOBILES...INCLUDING SPORT UTILITY 
VEHICLES. TURN AROUND...DON/T DROWN.

ADDITIONAL RIVER AND WEATHER INFORMATION IS AVAILABLE AT...
HTTP://WWW.WEATHER.GOV/LACROSSE .

&&

IAC067-210725-
/O.EXT.KARX.FL.W.0027.000000T0000Z-130523T1300Z/
/CCYI4.3.ER.000000T0000Z.130521T1200Z.130522T1900Z.NO/
1125 AM CDT MON MAY 20 2013

THE FLOOD WARNING CONTINUES FOR
  THE CEDAR RIVER AT CHARLES CITY.
* UNTIL THURSDAY MORNING...OR UNTIL THE WARNING IS CANCELLED.
* AT 10:30 AM MONDAY THE STAGE WAS 17.0 FEET. 
* FLOOD STAGE IS 12.0 FEET.
* MODERATE FLOODING IS OCCURRING AND MAJOR FLOODING IS FORECAST.
* FORECAST...THE RIVER FORECAST TO RISE TO NEAR TO NEAR 20.6
  FEET TUESDAY MORNING. THE RIVER WILL FALL BELOW FLOOD STAGE
  WEDNESDAY.
* IMPACT...AT 20.0 FEET...CLARK STREET AT LELAND FLOODS AND COURT 
  STREET AT ILLINOIS FLOODS.

&&
 
LAT...LON 4321 9286 4321 9273 4301 9255 4293 9255 4304 9273

$$

MNC099-210725-
/O.EXT.KARX.FL.W.0029.000000T0000Z-130521T1420Z/
/DOBM5.1.ER.130520T0825Z.130520T1330Z.130520T2020Z.NO/
1125 AM CDT MON MAY 20 2013

THE FLOOD WARNING CONTINUES FOR
  THE DOBBINS CREEK AT AUSTIN 2NE.
* UNTIL TUESDAY MORNING...OR UNTIL THE WARNING IS CANCELLED.
* AT 10:30 AM MONDAY THE STAGE WAS 12.4 FEET. 
* FLOOD STAGE IS 11.5 FEET.
* MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST.
* FORECAST...THE RIVER WILL CONTINUE TO FALL AND DROP BELOW FLOOD 
  STAGE THIS AFTERNOON.

&&
 
LAT...LON 4366 9297 4368 9296 4373 9287 4374 9277 4369 9279

$$
119 
WGUS83 KARX 202039
FLSARX
 
FLOOD STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
339 PM CDT MON MAY 20 2013

.EXCESSIVE RAINFALL THE PAST FEW DAYS...ESPECIALLY LAST
NIGHT...RESULTED IN SIGNIFICANT RISES ON AREA STREAMS AND RIVERS.
THE FLOOD WARNING CONTINUES FOR THE SOUTH BRANCH OF THE ROOT RIVER AT
PRESTON...BUT LEVELS HAVE DROPPED TO BELOW FLOOD STAGE ON DOBBINS
CREEK AT AUSTIN. RIVER FORECASTS TAKE INTO ACCOUNT BOTH OBSERVED AND
FORECAST PRECIPITATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE CARS INTO FLOODED AREAS. REMEMBER...IT TAKES ONLY TWO 
FEET OF WATER TO FLOAT MOST AUTOMOBILES...INCLUDING SPORT UTILITY 
VEHICLES. TURN AROUND...DON/T DROWN.

ADDITIONAL RIVER AND WEATHER INFORMATION IS AVAILABLE AT...
HTTP://WWW.WEATHER.GOV/LACROSSE .

&&

MNC099-202109-
/O.CAN.KARX.FL.W.0029.000000T0000Z-130521T1420Z/
/DOBM5.1.ER.130520T0825Z.130520T1330Z.130520T1730Z.NO/
339 PM CDT MON MAY 20 2013

THE FLOOD WARNING IS CANCELLED FOR
  THE DOBBINS CREEK AT AUSTIN 2NE.
* AT  2:30 PM MONDAY THE STAGE WAS 10.8 FEET. 
* FLOOD STAGE IS 11.5 FEET.
* FELL BELOW FLOOD STAGE AT 12:30 PM MONDAY.
* FORECAST...THE RIVER WILL CONTINUE TO FALL TO 8.5 FEET BY TUESDAY 
  MORNING.


$$

MNC045-055-211139-
/O.EXT.KARX.FL.W.0030.130520T2022Z-130522T0347Z/
/PTNM5.1.ER.130520T1739Z.130520T2200Z.130521T0347Z.NO/
339 PM CDT MON MAY 20 2013

THE FLOOD WARNING CONTINUES FOR
  THE SOUTH BRANCH ROOT RIVER AT PRESTON.
* UNTIL TUESDAY EVENING...OR UNTIL THE WARNING IS CANCELLED.
* AT  2:30 PM MONDAY THE STAGE WAS 938.1 FEET. 
* FLOOD STAGE IS 937.0 FEET.
* MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST.
* FORECAST...THE RIVER WILL CONTINUE RISING TO NEAR 938.5 FEET BY 
  THIS EVENING. THE RIVER WILL FALL BELOW FLOOD STAGE LATER TONIGHT.
* IMPACT...AT 938.0 FEET...SOME CITY STREETS ARE FLOODED NEAR THE 
  RIVER AND SOME EVACUATIONS ARE NEEDED.

&&
 
LAT...LON 4368 9219 4370 9206 4369 9202 4365 9206 4363 9219

$$

ZT

What forecasters said that day

The local office's own words before this river flood 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 river flood warning went out at May 20, 3:41 AM CDT, 35 minutes earlier.

Area forecast discussion, May 20, 3:41 AM CDT, 35 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LA CROSSE WI
341 AM CDT MON MAY 20 2013

.SHORT TERM...(TODAY AND TONIGHT)
ISSUED AT 341 AM CDT MON MAY 20 2013

MAIN FORECAST CONCERN IS ON SEVERE WEATHER AND FLOODING POTENTIAL
TODAY.

CURRENTLY AS OF 08Z...WATER VAPOR LOOP AND RAP 500MB HEIGHT ANALYSIS
SHOWED AN UPPER LOW OVER SOUTH DAKOTA AND NEBRASKA WITH RIDGING
AHEAD OF IT OVER MICHIGAN. THE UPPER LOW WAS MOSTLY CUT OFF WITH
RIDGING TO ITS NORTH OVER SOUTH CENTRAL CANADA. 500MB STANDARD
DEVIATIONS WERE 1-1.5 BELOW NORMAL WITH THE UPPER LOW. NUMEROUS
SHORTWAVES WERE EJECTING IN SOUTHWEST FLOW AHEAD OF THE UPPER
LOW...SOME OF WHICH ARE CONVECTIVELY PRODUCED. ONE FOR EXAMPLE WAS
LIFTING THROUGH NORTHWEST WISCONSIN WHICH BROUGHT RAIN TO MUCH OF
THE AREA DURING THE NIGHTTIME HOURS. RAP DATA ALSO SHOWED A LOW
LEVEL MOISTURE TRANSPORT ZONE WITH THIS MCV. FARTHER SOUTH...ANOTHER
LOW LEVEL MOISTURE TRANSPORT ZONE WAS NOTED IN SOUTHERN MISSOURI...
POINTING INTO SOUTHERN ILLINOIS. COMBINATION OF SUBSIDENCE IN THE
WAKE OF THE MCV AND SPLIT IN MOISTURE TRANSPORT HAS ALLOWED THE
PRECIPITATION TO DIMINISH SOUTH OF HWY 29. PLENTIFUL MOISTURE COMING
UP AHEAD OF THE UPPER LOW WITH PRECIPITABLE WATER VALUES OF 1.2-1.5
INCHES FROM EASTERN OK INTO SOUTEHRN WI. THERE WAS A MINIMA OF
PRECIPITABLE WATER FROM WESTERN KS INTO MUCH OF IA...THOUGH....
ASSOCIATED WITH A DRY SLOT SOUTH OF THE UPPER LOW. AT THE
SURFACE...LOW PRESSURE WAS SITUATED UNDER THE UPPER LOW WITH A WARM
FRONT EXTENDING EAST TO EAU CLAIRE WI. RAP 850MB TEMPS WERE IN THE
14-18C RANGE SOUTH OF THE FRONT IN THE FORECAST AREA.

MODELS ARE IN GOOD AGREEMENT OF KEEPING THE UPPER LOW NEARLY
STATIONARY OVER SOUTH DAKOTA. DESPITE ITS STATIONARY MOVEMENT...THE
WEATHER WILL BE QUITE A BIT DIFFERENT COMPARED TO YESTERDAY.
PRIMARILY THIS IS DUE TO THE UPPER FLOW AHEAD OF THE UPPER LOW
PROGGED MORE SOUTHWESTERLY VERSUS SOUTHERLY. ADDITIONALLY...THE
PLUME OF HIGHER PRECIPITABLE WATER IS PROGGED TO SLOWLY SHIFT EAST
THANKS TO THE UPPER LOW.

MOST OF THE FORECAST AREA IS INDICATED TO STAY IN THE WARM SECTOR
THROUGH TONIGHT...ALONG WITH EXISTING IN THAT SOUTHWEST FLOW FOR
SHORTWAVES TO COME THROUGH...BOTH FAVORABLE FOR THUNDERSTORM
DEVELOPMENT. HOWEVER...ONE QUESTION MARK IS MOISTURE. BASED ON A
AMDAR SOUNDING OUT OF OMAHA AT 04Z...THE 850MB DEWPOINTS FROM THE
20.00Z NAM WERE 6-7C TOO HIGH...THUS THE NAM BUILDS A LOT OF CAPE
QUICKLY THIS MORNING. THE RAP IS MUCH MORE SUBDUED HAVING THE AREA
ENCOMPASSED BY THE DRY AIR...ESPECIALLY WHEN LOOKING AT MLCAPE.
THINKING THE RAP IDEA IS MUCH MORE REPRESENTATIVE AND HAVE KEPT THE
AREA DRY THROUGH EARLY AFTERNOON. EVENTUALLY...THE RAP DOES CATCH UP
WITH THE CAPE LATE IN THE AFTERNOON THANKS TO EVAPOTRANSPORATION OF
MOIST SOILS. IN FACT...THE RAP SHOWS A DEFINITIVE DRY LINE IN THE
WARM SECTOR FORMING NEAR I-35 IN THE AFTERNOON. THIS DRY LINE SHOULD
SERVE AS A TRIGGER FOR CONVECTIVE DEVELOPMENT...ESPECIALLY IN
SOUTHEAST MN AND NORTHEAST IA. MAJORITY OF MODELS...INCLUDING HI
RESOLUTION ONES...SHOW THIS SCENARIO...WITH THE THUNDERSTORMS THEN
PROPAGATING NORTHEAST THROUGH THE EVENING. THE BEST 0-6KM SHEAR OF
GREATER THAN 35 KTS IS PROGGED OVER THE SOUTHEAST HALF OF THE
FORECAST AREA...OPPOSITE OF WHERE MOST OF THE CONVECTION WILL BE. ON
THE OTHER HAND...FREEZING LEVEL HEIGHTS ARE LOWER ON THE ORDER OF
10500 FT WHERE THE CONVECTION IS EXPECTED...THUS THERE COULD END UP
BEING MARGINALLY SEVERE HAIL. STORMS SHOULD GRADUALLY WEAKEN AS
INSTABILITY WANES LATE IN THE EVENING INTO THE OVERNIGHT HOURS. IT
SHOULD BE NOTED...IF FOR SOME REASON A STORM FIRES IN THE HIGHER
0-6KM SHEAR AREA THIS AFTERNOON...IT WOULD LIKELY BECOME
SUPERCELLULAR. AGAIN...THOUGH...THINK THIS IS A LOW PROBABILITY WITH
THAT AREA PERHAPS EVEN BEING CAPPED. SEE THE HYDROLOGY SECTION BELOW
FOR FLOODING CONCERNS.

CERTAINTLY THE ADDITIONAL RAIN FROM STORMS THIS AFTERNOON AND EARLY
EVENING WILL NOT HELP THE FLOODING MATTERS IN PORTIONS OF SOUTHEAST
MINNESOTA AND NORTHEAST IOWA. HAVE KEPT THE FLASH FLOOD WATCH GOING
TO 00Z THIS EVENING...WHICH WORKS OUT WELL IN TERMS OF TIME BECAUSE
THE CONVECTION SHOULD MOSTLY BE EAST OF THERE BY THE EXPIRATION.

SHOULD SEE QUITE A BIT OF SUN TODAY AND WITH 850MB TEMPS HOVERING IN
THAT 14-18C RANGE...TEMPERATURES SHOULD EASILY CLIMB INTO THE UPPER
70S TO MID 80S. ANOTHER MILD NIGHT LIKELY TONIGHT WITH PLENTY OF
CLOUDS AND DEWPOINTS REMAINING UP IN THE 50S TO LOW 60S.

.LONG TERM...(TUESDAY THROUGH SUNDAY)
ISSUED AT 341 AM CDT MON MAY 20 2013

TUESDAY THROUGH THURSDAY...
MAIN FOCUS HERE IS ON THE EVOLUTION OF THE UPPER LOW. 20.00Z
ECMWF/GFS/CANADIAN/NAM ARE ALL IN PRETTY GOOD AGREEMENT HOLDING THE
UPPER LOW NEARLY STATIONARY ON TUESDAY...THEN GRADUALLY SHIFTING
EASTWARD TUESDAY NIGHT AND WEDNESDAY BEFORE IT GETS MORE OF A KICK
EAST WEDNESDAY NIGHT. THE KICK EAST IS IN RESPONSE TO A POTENT
TROUGH DROPPING SOUTH THROUGH MUCH OF EASTERN CANADA.

FOR TUESDAY...MUCH OF THE FORECAST AREA WEST OF THE MISSISSIPPI
RIVER LOOKS TO BE DRY-SLOTTED...THUS HAVE LOWERED PRECIPITATION
CHANCES. TO THE EAST...THERE ARE INDICATIONS THAT SOME DIURNAL
CONVECTION COULD FORM ALONG A COLD FRONT MARCHING EAST. INSTABILITY
IS PRETTY MEAGER IN THIS CASE COMPARED TO WHAT WE HAVE BEEN DEALING
WITH...THUS ANY CONVECTION SHOULD NOT GO SEVERE. BETTER SHOT FOR
SEVERE WEATHER WILL BE WELL SOUTH AND EAST OF THE FORECAST AREA.
HIGHEST PRECIPITATION CHANCES OVERALL ARE EXPECTED NORTH OF HWY 29
IN A LOW TO MID LEVEL FRONTOGENESIS ZONE.

AS THE UPPER LOW BEGINS TO PUSH EAST TOWARDS THE FORECAST AREA
TUESDAY NIGHT AND WEDNESDAY...DPVA INCREASES WHILE SIMULTANEOUSLY
THE LOW TO MID LEVEL FRONTOGENESIS ZONE DROPS SOUTH. THEREFORE...
INCREASING PRECIPITATION CHANCES SEEM REASONABLE... ESPECIALLY ON
WEDNESDAY WHEN THE TWO FORCING MECHANISMS ARE JUXTAPOSTED.
ADDITIONALLY...THERE COULD BE SOME DIURNAL ENHANCEMENT ON WEDNESDAY
BEING CLOSE TO OR UNDER THE COLD CORE OF THE UPPER LOW.

MODELS APPEAR TO BE TRENDING FASTER IN KICKING OUT THE UPPER LOW FOR
WEDNESDAY NIGHT AND THURSDAY...ENOUGH SO THAT THURSDAY MAY NOW END
UP DRY. WEDNESDAY NIGHT STILL LOOKS FAVORABLE FOR PRECIPITATION...
ESPECIALLY EAST OF THE MISSISSIPPI RIVER WHICH IS IN THAT
AFOREMENTIONED JUXTAPOSITION OF FORCING MECHANISMS.

DEFINITELY A COOLING TREND WILL TAKE PLACE FOR TUESDAY THROUGH
THURSDAY WITH THAT UPPER LOW COMING IN...AND THEN COME THURSDAY A
NORTHERLY FLOW ADVECTING AIR FROM CANADIAN HIGH PRESSURE TRYING TO
BUILD SOUTH INTO THE UPPER GREAT LAKES. 850MB TEMPS FALL FROM 11-13C
AT 12Z TUE TO 4-6C BY 12Z THU. WENT WITH A BLEND OF GUIDANCE FOR
HIGHS AND LOWS FOR NOW GIVEN NO SIGNAL TO LEAN TOWARDS WARMER OR
COLDER SCENARIO GIVEN THE FORECAST PATTERN.

THURSDAY NIGHT INTO NEXT WEEKEND...
20.00Z ECMWF/GFS/CANADIAN AND GFS ENSEMBLES CONTINUE TO ADVERTISE A
BLOCKED UP UPPER LEVEL FLOW PATTERN ACROSS NORTH AMERICA DURING THE
EXTENDED PORTION OF THE FORECAST. THE FLOW FEATURES DEEP TROUGHING
ALONG THE WEST COAST...RIDGING FROM THE PLAINS INTO THE NORTHWEST
TERRITORIES...AND MEAN TROUGHING FROM EASTERN CANADA INTO THE
MID-ATLANTIC REGION. WHAT THIS PATTERN MEANS FOR THE FORECAST AREA
IS A BATTLE BETWEEN DRY...CANADIAN HIGH PRESSURE AND A MORE HUMID
AIRMASS ADVECTING NORTH OUT OF THE GULF OF MEXICO UNDER THE UPPER
RIDGE. IT APPEARS DRY CONDITIONS SHOULD PREVAIL FOR THURSDAY NIGHT
AND FRIDAY...RESULTING FROM SUBSIDENCE IN THE WAKE OF THE EARLY TO
MID WEEK UPPER LOW. FROM FRIDAY NIGHT AND BEYOND...HAVE FOLLOWED A
CONSENSUS APPROACH AND SPREAD PRECIPITATION CHANCES ACROSS THE
FORECAST AREA...HIGHEST WEST OF THE MISSISSIPPI RIVER. THESE CHANCES
ARE A RESULT OF SURGES OF WARM ADVECTION. THE PRECIPITATION COULD
BECOME ENHANCED TOO AT TIMES AS JET STREAKS PROPAGATE BETWEEN THE
EASTERN CANADA TROUGH AND PLAINS RIDGING.

SOMETHING TO WATCH DURING THE EXTENDED IS POTENTIAL FOR FROST...
ESPECIALLY IN CENTRAL WISCONSIN. THURSDAY NIGHT ACCORDING TO 20.00Z
MODELS WOULD BE THE HIGHEST CHANCE...THOUGH CONFIDENCE IS NOT HIGH
ENOUGH TO EITHER MENTION FROST IN THE FORECAST OR DROP LOWS BELOW
40. OTHERWISE...TEMPERATURES SHOULD STAY MOSTLY BELOW NORMAL BEING
UNDER THE INFLUENCE OF THE CANADIAN HIGH AND A NORTHEAST FLOW.

&&

.AVIATION...(FOR THE 06Z TAFS THROUGH 06Z MONDAY NIGHT)
ISSUED AT 115 AM CDT MON MAY 20 2013

IT APPEARS THE LAST SURGE OF RAIN AND THUNDERSTORMS ARE MOVING
NORTH THROUGH THE TAF SITES AT THIS TIME AND FOR THE NEXT FEW
HOURS. MODERATE RAIN AND MVFR CIGS/VSBYS WILL CLEAR AS THE RAIN
MOVES OFF TO THE NORTH. A CLEARING TREND IS EXPECTED WITH VFR
EXPECTED FOR THE DAYLIGHT HOURS.

INSTABILITY WILL AGAIN BUILD OVER THE TAF SITES AND SET THE STAGE
FOR LATE AFTERNOON AND EVENING TSRA CHANCES. FOR NOW HAVE INCLUDED
A VCTS AND FUTURE FORECASTS CAN REFINE THE TIMING AT THE TAF
SITES. MONDAY AFTERNOON AND EVENING TSRA COVERAGE IS NOT EXPECTED
TO BE AS WIDESPREAD OR AFFECT THE TAF SITES AS LONG AS THE
ACTIVITY SUNDAY NIGHT.

&&

.HYDROLOGY...
ISSUED AT 341 AM CDT MON MAY 20 2013

MULTIPLE DAYS OF HEAVY RAIN ACROSS PORTIONS OF SOUTHEAST MINNESOTA
AND NORTHEAST IOWA HAS REALLY LOWERED THE THRESHOLD FOR FLOODING. A
STRIPE FROM MITCHELL COUNTY IA THROUGH MOWER...WESTERN FILLMORE AND
OLMSTED COUNTIES WERE ESPECIALLY HARD HIT FROM YESTERDAY\S RAIN.
REPORT FROM MITCHELL COUNTY IA EMERGENCY MANAGER AT 330 AM WAS THAT
MOST MAIN ROADS ARE CLOSED DUE TO HIGH WATER AND MANY SIDE ROADS ARE
WASHED OUT. THUS...THE AREA THAT WAS PUT IN A FLASH FLOOD WATCH
YESTERDAY CANNOT HANDLE ANY MORE RAIN. SEE LATEST AREAL AND RIVER
FLOOD STATEMENTS FOR MORE INFORMATION.

ON A POSITIVE NOTE...THE DEEP MOISTURE THAT WAS PRESENT TO ALLOW THE
STORMS TO PRODUCE SUCH HEAVY RAIN IS SHIFTING OFF TO THE EAST.
ADDITIONALLY...EVEN THOUGH SOME THUNDERSTORMS ARE EXPECTED THIS
AFTERNOON...THERE LOOKS TO BE ENOUGH UPPER LEVEL FLOW TO KEEP THEM
MOVING TO THE EAST. THUS...NOT ANTICIPATING ANY WIDESPREAD FLOODING.
WILL NEED TO KEEP THE FLASH FLOOD WATCH GOING...THOUGH...BECAUSE AS
MENTIONED EARLIER THE AREA HAS BEEN SO HARD HIT ANY RAIN WILL CAUSE
A PROBLEM.

ADDITIONAL RAINFALL IS POSSIBLE TUESDAY THROUGH WEDNESDAY
NIGHT...THOUGH TUESDAY IS TRENDING DRIER FOR SOUTHEAST MINNESOTA AND
NORTHEAST IOWA. HOPEFULLY THE DRIER PERIOD FROM TONIGHT THROUGH
TUESDAY WILL ALLOW THE FLOOD THREAT TO DIMINISH...THOUGH RIVER
FLOODING MAY TAKE A LITTLE LONGER TO END.

&&

.ARX WATCHES/WARNINGS/ADVISORIES...
WI...NONE.
MN...FLASH FLOOD WATCH THROUGH THIS EVENING FOR MNZ079-086-087-094-
     095.

IA...FLASH FLOOD WATCH THROUGH THIS EVENING FOR IAZ008.

&&

SHORT TERM...AJ
LONG TERM...AJ
AVIATION...BAUMGARDT
HYDROLOGY...AJ
Hazardous weather outlook, May 20, 2:53 AM CDT, 1 hour 23 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LA CROSSE WI
253 AM CDT MON MAY 20 2013

IAZ008-MNZ079-086-087-094-095-211200-
DODGE-FILLMORE-MITCHELL-MOWER-OLMSTED-WABASHA-
253 AM CDT MON MAY 20 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST IOWA
AND SOUTHEAST MINNESOTA.

.DAY ONE...TODAY AND TONIGHT

A FLASH FLOOD WATCH REMAINS IN EFFECT TODAY. IN ADDITION...THERE
CONTINUES TO BE SOME FLOODING ALONG AREA CREEKS...FIELDS AND
LOW LYING AREAS DUE TO THE 2 TO 7 INCHES OF RAIN THAT FELL ON
SUNDAY.

ANOTHER ROUND OF SEVERE WEATHER IS POSSIBLE BETWEEN 3 PM THIS
AFTERNOON AND 10 PM TONIGHT. LARGE HAIL...DAMAGING WINDS AND
FLASH FLOODING WILL BE THE MAIN HAZARDS. AN ISOLATED TORNADO IS ALSO
POSSIBLE.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THUNDERSTORMS ARE POSSIBLE FROM TUESDAY THROUGH WEDNESDAY. THE
PRIMARY CONCERN WILL BE LOCALIZED FLOODING DUE TO THE RECENT HEAVY
RAIN.

ADDITIONAL CHANCES OF THUNDERSTORMS ARE IN THE FORECAST FOR FRIDAY
NIGHT THROUGH SUNDAY. AT THIS TIME IT IS TOO EARLY TO DISCERN ANY
SEVERE WEATHER POTENTIAL WITH THESE STORMS.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS MAY BE NEEDED BETWEEN 3 PM AND 10 PM.

.EMERGENCY MANAGEMENT COORDINATION...

NO WEBINAR IS SCHEDULED.

IAZ009>011-018-019-029-030-MNZ088-096-WIZ017-029-032>034-041>044-
053>055-061-211200-
ADAMS-ALLAMAKEE-BUFFALO-CHICKASAW-CLARK-CLAYTON-CRAWFORD-FAYETTE-
FLOYD-GRANT-HOUSTON-HOWARD-JACKSON-JUNEAU-LA CROSSE-MONROE-RICHLAND-
TAYLOR-TREMPEALEAU-VERNON-WINNESHIEK-WINONA-
253 AM CDT MON MAY 20 2013

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

.DAY ONE...TODAY AND TONIGHT

ANOTHER ROUND OF SEVERE WEATHER WILL BE POSSIBLE BETWEEN 3 PM THIS
AFTERNOON AND 10 PM TONIGHT. LARGE HAIL AND DAMAGING WINDS WILL BE
THE MAIN HAZARDS. AN ISOLATED TORNADO IS ALSO POSSIBLE.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THUNDERSTORMS ARE POSSIBLE FROM TUESDAY THROUGH WEDNESDAY. SEVERE
WEATHER IS NOT ANTICIPATED WITH THESE STORMS.

ADDITIONAL CHANCES OF THUNDERSTORMS ARE IN THE FORECAST FOR FRIDAY
NIGHT THROUGH SUNDAY. AT THIS TIME IT IS TOO EARLY TO DISCERN ANY
SEVERE WEATHER POTENTIAL WITH THESE STORMS.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS MAY BE NEEDED BETWEEN 3 PM AND 10 PM.

.EMERGENCY MANAGEMENT COORDINATION...

NO WEBINAR IS SCHEDULED.

BOYNE/AJ

In the hours before

Special weather statement, May 20, 12:59 AM CDT, 3 hours 17 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
1259 AM CDT MON MAY 20 2013

WIZ043-044-200700-
ADAMS-JUNEAU-
1259 AM CDT MON MAY 20 2013

...STRONG THUNDERSTORMS APPROACHING ADAMS AND JUNEAU COUNTIES...

AT 1256 AM...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS
APPROACHING I-94 IN SOUTHERN JUNEAU AND ADAMS COUNTIES. THE STORMS
WERE MOVING NORTHEAST AT 50 MPH.

WIND GUSTS OF 50 TO 55 MPH MAY ACCOMPANY THESE THUNDERSTORMS.

LOCATIONS THAT MAY BE AFFECTED INCLUDE...
NEW LISBON...MAUSTON...NECEDAH...DELLWOOD...FRIENDSHIP...ADAMS AND
NEW ROME.

BAUMGARDT
Local storm report, May 20, 1:26 AM CDT, 2 hours 50 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
126 AM CDT MON MAY 20 2013

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

0125 AM     FLASH FLOOD      ROSE CREEK              43.60N 92.83W
05/20/2013                   MOWER              MN   BROADCAST MEDIA

            ROSE CREEK IS RISING RAPIDLY...AND HAS INUNDATED
            JELLYSTONE CAMPGROUND OFF I-90.

&&

ZT
Local storm report, May 20, 1:54 AM CDT, 2 hours 22 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
154 AM CDT MON MAY 20 2013

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

0153 AM     FLASH FLOOD      ROSE CREEK              43.60N 92.83W
05/20/2013                   MOWER              MN   LAW ENFORCEMENT

            3 EMPTY VEHICLES SURROUNDED BY RISING WATERS IN
            JELLYSTONE CAMPGROUND. DEPUTY REPORTS SIGNIFICANT
            FLOODING AT THE CAMPGROUND.

&&

ZT
Local storm report, May 20, 2:02 AM CDT, 2 hours 14 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
202 AM CDT MON MAY 20 2013

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

0202 AM     HEAVY RAIN       DOVER                   43.97N 92.13W
05/20/2013  M2.52 INCH       OLMSTED            MN   MESONET

&&

ZT
Local storm report, May 20, 2:04 AM CDT, 2 hours 12 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE LA CROSSE WI
204 AM CDT MON MAY 20 2013

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

0309 PM     TSTM WND DMG     2 S ST. ANSGAR          43.35N 92.92W
05/19/2013                   MITCHELL           IA   BROADCAST MEDIA

            SHED BLOWN ACROSS ROAD WITH DEBRIS STILL ON POWER LINES.

0314 PM     HAIL             CHARLES CITY            43.07N 92.68W
05/19/2013  M1.00 INCH       FLOYD              IA   LAW ENFORCEMENT

0326 PM     HAIL             1 W OSAGE               43.28N 92.83W
05/19/2013  M1.00 INCH       MITCHELL           IA   EMERGENCY MNGR

            LOTS OF QUARTER SIZED HAIL COVERING THE GROUND ALONG HWY
            9.

0400 PM     TSTM WND DMG     2 N NORA SPRINGS        43.17N 93.01W
05/19/2013                   FLOYD              IA   EMERGENCY MNGR

            FLOYD COUNTY EMERGENCY MANAGER REPORTS A BARN IS DOWN
            NORTH OF NORA SPRINGS...NUMEROUS LARGE TREES
            UPROOTED...AND 1 LARGE TREE FELL ON A HOUSE.

0415 PM     TSTM WND DMG     2 S STEWARTVILLE        43.83N 92.49W
05/19/2013                   MOWER              MN   BROADCAST MEDIA

            TWITTER REPORT RELAYED BY KTTC WITH A REPORT OF 30 LARGE
            PINE TREES DOWN

0419 PM     TSTM WND GST     4 N STEWARTVILLE        43.92N 92.49W
05/19/2013  M60.00 MPH       OLMSTED            MN   ASOS

            ROCHESTER AIRPORT GUSTED TO 6O MPH AT 419 PM.

0420 PM     TSTM WND DMG     3 W OSAGE               43.28N 92.87W
05/19/2013                   MITCHELL           IA   EMERGENCY MNGR

            MITCHELL COUNTY EMERGENCY MANAGER REPORTS BARN FELL ON
            CATTLE HERD...KILLING SOME OF THE CATTLE.

0443 PM     TSTM WND DMG     4 NW ROCHESTER          44.05N 92.53W
05/19/2013                   OLMSTED            MN   BROADCAST MEDIA

            TWITTER REPORT RELAYED BY KTTC OF POWER OUT NEAR TARGET
            NORTH AND DEBRIS DOWN ON ROADS NEAR THE RAILROAD TRACKS
            AND ASSISI HEIGHTS.

0522 PM     TSTM WND DMG     ST. CHARLES             43.97N 92.06W
05/19/2013                   WINONA             MN   911 CALL CENTER

            POWER LINES DOWN IN THE CITY. ONE TREE DOWN IN THE CITY
            AS WELL.

0523 PM     HAIL             4 N ST. CHARLES         44.03N 92.06W
05/19/2013  M1.00 INCH       WINONA             MN   AMATEUR RADIO

            ALSO LARGE PIECES OF TIN METAL 6 FT LONG BLOWN OUT

0523 PM     TSTM WND DMG     2 N ST. CHARLES         44.00N 92.06W
05/19/2013                   WINONA             MN   911 CALL CENTER

            STRUCTURE DAMAGE. LARGE TREES DOWN. POLE BARN DOWN ALONG
            WITH CORN CRIBS.

0553 PM     FLASH FLOOD      NORA SPRINGS            43.14N 93.01W
05/19/2013                   FLOYD              IA   911 CALL CENTER

            NUMEROUS ROADS UNDER WATER.

0557 PM     TSTM WND DMG     3 S COCHRANE            44.19N 91.84W
05/19/2013                   BUFFALO            WI   LAW ENFORCEMENT

            TREES AND POWER LINES DOWN AROUND COCHRANE.

0557 PM     TSTM WND DMG     BUFFALO                 44.22N 91.87W
05/19/2013                   WABASHA            WI   LAW ENFORCEMENT

            POWER LINES DOWN IN THE CITY

0608 PM     FLASH FLOOD      ST. ANSGAR              43.38N 92.92W
05/19/2013                   MITCHELL           IA   911 CALL CENTER

            DISPATCH CENTER REPORTS WIDESPREAD FLOODING OF SECONDARY
            ROADS ACROSS THE ENTIRE COUNTY.

0615 PM     HAIL             ELEVA                   44.58N 91.47W
05/19/2013  M1.00 INCH       TREMPEALEAU        WI   PUBLIC

            ALSO 50 MPH WIND GUSTS.

0615 PM     TSTM WND DMG     GILMANTON               44.46N 91.68W
05/19/2013                   BUFFALO            WI   EMERGENCY MNGR

            12 POWER POLES DOWN

0652 PM     FLASH FLOOD      2 W LE ROY              43.51N 92.55W
05/19/2013                   MOWER              MN   LAW ENFORCEMENT

            WATER RUNNING OVER ROAD ON STATE HWY 56 WEST OF LE ROY.
            RADAR ESTIMATES 3 TO 4 INCHES OF RAIN.

0721 PM     HAIL             LEWISTON                43.98N 91.87W
05/19/2013  M1.00 INCH       WINONA             MN   911 CALL CENTER

0721 PM     TSTM WND DMG     LEWISTON                43.98N 91.87W
05/19/2013                   WINONA             MN   LAW ENFORCEMENT

            TREES DOWN IN THE CITY

0723 PM     FLASH FLOOD      STACYVILLE              43.44N 92.78W
05/19/2013                   MITCHELL           IA   FIRE DEPT/RESCUE

            FIRE DEPARTMENT REPORTS 6 TO 7 INCHES OF RAIN HAS FALLEN.
            EVERY ROAD IN STACYVILLE IS IMPASSABLE AND FLOODED.
            SANDBAGS WERE BEING DEPLOYED ALONG THE LITTLE CEDAR
            RIVER...WHICH IS OUT OF ITS BANK.

0723 PM     FLASH FLOOD      OSAGE                   43.28N 92.81W
05/19/2013                   MITCHELL           IA   LAW ENFORCEMENT

            MITCHELL COUNTY DISPATCH REPORTS HWY 218 NORTH OF OSAGE
            IS IN THE PROCESS OF BEING SHUT DOWN DUE TO FLOODING.
            MANY ROADS ARE WASHED OUT...FROM THE SOUTHWEST PART OF
            THE COUNTY TO THE NORTHEAST.

0725 PM     TSTM WND DMG     3 SW LEWISTON           43.95N 91.91W
05/19/2013                   WINONA             MN   LAW ENFORCEMENT

            SEMI JACKED KNIFED ON I-90 IN WESTERN WINONA.

0728 PM     TSTM WND GST     1 S LEWISTON            43.97N 91.87W
05/19/2013  E65.00 MPH       WINONA             MN   LAW ENFORCEMENT

0730 PM     TSTM WND GST     1 S LEWISTON            43.97N 91.87W
05/19/2013  M74.00 MPH       WINONA             MN   TRAINED SPOTTER

0740 PM     TSTM WND GST     WINONA                  44.05N 91.66W
05/19/2013  M62.00 MPH       WINONA             MN   TRAINED SPOTTER

0740 PM     TSTM WND DMG     ROLLINGSTONE            44.10N 91.82W
05/19/2013                   WINONA             MN   TRAINED SPOTTER

            LARGE TREE BRANCHES DOWN. SOME BRANCHES FELL ON VEHICLES
            AND ALSO ON A DECK...CAUSING DAMAGE

0815 PM     FLASH FLOOD      OSAGE                   43.28N 92.81W
05/19/2013                   MITCHELL           IA   EMERGENCY MNGR

            HWY 218 BETWEEN OSAGE AND ST ANSGAR IS CLOSED. EM REPORTS
            90 PERCENT OF GRAVEL ROADS IN COUNTY ARE COVERED WITH
            WATER.

0825 PM     FLASH FLOOD      3 E AUSTIN              43.67N 92.91W
05/19/2013                   MOWER              MN   TRAINED SPOTTER

            ROSE CREEK NEAR JELLYSTONE CAMPGROUND /I-90 EXIT 187/
            RISING RAPIDLY AND LESS THAN A FOOT FROM GOING OVER ITS
            BANKS

0841 PM     HAIL             CHARLES CITY            43.07N 92.68W
05/19/2013  M0.50 INCH       FLOYD              IA   LAW ENFORCEMENT

0849 PM     FLASH FLOOD      ADAMS                   43.56N 92.72W
05/19/2013                   MOWER              MN   BROADCAST MEDIA

            ROADS AND BRIDGES COVERED WITH WATER

0855 PM     HEAVY RAIN       ST. ANSGAR              43.38N 92.92W
05/19/2013  M4.43 INCH       MITCHELL           IA   CO-OP OBSERVER

            OVER 3.5 INCHES SINCE 6 PM.

0912 PM     FLASH FLOOD      ADAMS                   43.56N 92.72W
05/19/2013                   MOWER              MN   LAW ENFORCEMENT

            SANDBAGGING TAKING PLACE IN ADAMS. COUNTY ROADS
            7...4...AND 11 ARE CLOSED DUE TO FLOODING.

0915 PM     TSTM WND DMG     NEW HAMPTON             43.06N 92.31W
05/19/2013                   CHICKASAW          IA   LAW ENFORCEMENT

            NUMEROUS TREES AND POWER LINES DOWN ACROSS NEW HAMPTON.
            SEVERAL HOMES HAVE GARAGES DAMAGED. OTHER BUILDINGS IN
            TOWN HEAVILY DAMAGED. A GRAIN ELEVATOR IN FREDERICKSBURG
            WAS DAMAGED.

0924 PM     TSTM WND DMG     NEW HAMPTON             43.06N 92.31W
05/19/2013                   CHICKASAW          IA   BROADCAST MEDIA

            TREE BRANCHES DOWN...BLOCKING A FEW STREETS.

0934 PM     TSTM WND DMG     CALMAR                  43.18N 91.87W
05/19/2013                   WINNESHIEK         IA   TRAINED SPOTTER

            TREE BRANCHES DOWN ON POWER LINES.

0945 PM     FLOOD            OSAGE                   43.28N 92.81W
05/19/2013                   MITCHELL           IA   EMERGENCY MNGR

            HWY 9 BOTH EAST AND WEST OF OSAGE IS CLOSED DUE TO WATER
            OVER THE ROAD. HWY 218 NORTH OF OSAGE ALSO CLOSED FOR
            SEVERAL MILES. MANY COUNTY ROADS ALSO CLOSED

1000 PM     HEAVY RAIN       ROCHESTER AIRPORT       43.91N 92.50W
05/19/2013  M1.51 INCH       OLMSTED            MN   ASOS

1000 PM     HEAVY RAIN       FILLMORE                43.75N 92.27W
05/19/2013  M2.39 INCH       FILLMORE           MN   MESONET

1000 PM     TSTM WND DMG     POSTVILLE               43.08N 91.57W
05/19/2013                   ALLAMAKEE          IA   911 CALL CENTER

            TREESS DOWN IN POSTVILLE

1000 PM     HEAVY RAIN       ELBA                    44.09N 92.02W
05/19/2013  M1.81 INCH       WINONA             MN   MESONET

1000 PM     HEAVY RAIN       OSAGE                   43.28N 92.81W
05/19/2013  M3.84 INCH       MITCHELL           IA   MESONET

1004 PM     TSTM WND GST     DECORAH                 43.31N 91.79W
05/19/2013  E45.00 MPH       WINNESHIEK         IA   TRAINED SPOTTER

            SMALL BRANCHES DOWN.

1010 PM     TSTM WND DMG     WAUKON                  43.27N 91.48W
05/19/2013                   ALLAMAKEE          IA   911 CALL CENTER

            TREES DOWN IN WAUKON

1045 PM     TSTM WND DMG     WESTBY                  43.65N 90.86W
05/19/2013                   VERNON             WI   911 CALL CENTER

            TREES DOWN IN WESTBY ACROSS HWY 14

1146 PM     TSTM WND DMG     LANCASTER               42.85N 90.71W
05/19/2013                   GRANT              WI   911 CALL CENTER

            TREE DOWN IN LANCASTER

1150 PM     HAIL             3 E POTOSI              42.69N 90.65W
05/19/2013  M1.75 INCH       GRANT              WI   TRAINED SPOTTER

1213 AM     HEAVY RAIN       GRAND MEADOW            43.71N 92.57W
05/20/2013  M2.21 INCH       MOWER              MN   CO-OP OBSERVER

1237 AM     TSTM WND GST     LONE ROCK               43.18N 90.20W
05/20/2013  M60.00 MPH       RICHLAND           WI   ASOS

            LONE ROCK ASOS GUSTED TO 52 KTS AT 0537Z.

0125 AM     FLASH FLOOD      ROSE CREEK              43.60N 92.83W
05/20/2013                   MOWER              MN   BROADCAST MEDIA

            ROSE CREEK IS RISING RAPIDLY...AND HAS INUNDATED
            JELLYSTONE CAMPGROUND OFF I-90.

0153 AM     FLASH FLOOD      ROSE CREEK              43.60N 92.83W
05/20/2013                   MOWER              MN   LAW ENFORCEMENT

            3 EMPTY VEHICLES SURROUNDED BY RISING WATERS IN
            JELLYSTONE CAMPGROUND. DEPUTY REPORTS SIGNIFICANT
            FLOODING AT THE CAMPGROUND.

0202 AM     HEAVY RAIN       DOVER                   43.97N 92.13W
05/20/2013  M2.52 INCH       OLMSTED            MN   MESONET

&&

ZT
Local storm report, May 20, 3:32 AM CDT, 44 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE LA CROSSE WI
332 AM CDT MON MAY 20 2013

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

0309 PM     TSTM WND DMG     2 S ST. ANSGAR          43.35N 92.92W
05/19/2013                   MITCHELL           IA   BROADCAST MEDIA

            SHED BLOWN ACROSS ROAD WITH DEBRIS STILL ON POWER LINES.

0314 PM     HAIL             CHARLES CITY            43.07N 92.68W
05/19/2013  M1.00 INCH       FLOYD              IA   LAW ENFORCEMENT

0326 PM     HAIL             1 W OSAGE               43.28N 92.83W
05/19/2013  M1.00 INCH       MITCHELL           IA   EMERGENCY MNGR

            LOTS OF QUARTER SIZED HAIL COVERING THE GROUND ALONG HWY
            9.

0400 PM     TSTM WND DMG     2 N NORA SPRINGS        43.17N 93.01W
05/19/2013                   FLOYD              IA   EMERGENCY MNGR

            FLOYD COUNTY EMERGENCY MANAGER REPORTS A BARN IS DOWN
            NORTH OF NORA SPRINGS...NUMEROUS LARGE TREES
            UPROOTED...AND 1 LARGE TREE FELL ON A HOUSE.

0415 PM     TSTM WND DMG     2 S STEWARTVILLE        43.83N 92.49W
05/19/2013                   MOWER              MN   BROADCAST MEDIA

            TWITTER REPORT RELAYED BY KTTC WITH A REPORT OF 30 LARGE
            PINE TREES DOWN

0419 PM     TSTM WND GST     4 N STEWARTVILLE        43.92N 92.49W
05/19/2013  M60.00 MPH       OLMSTED            MN   ASOS

            ROCHESTER AIRPORT GUSTED TO 6O MPH AT 419 PM.

0420 PM     TSTM WND DMG     3 W OSAGE               43.28N 92.87W
05/19/2013                   MITCHELL           IA   EMERGENCY MNGR

            MITCHELL COUNTY EMERGENCY MANAGER REPORTS BARN FELL ON
            CATTLE HERD...KILLING SOME OF THE CATTLE.

0443 PM     TSTM WND DMG     4 NW ROCHESTER          44.05N 92.53W
05/19/2013                   OLMSTED            MN   BROADCAST MEDIA

            TWITTER REPORT RELAYED BY KTTC OF POWER OUT NEAR TARGET
            NORTH AND DEBRIS DOWN ON ROADS NEAR THE RAILROAD TRACKS
            AND ASSISI HEIGHTS.

0522 PM     TSTM WND DMG     ST. CHARLES             43.97N 92.06W
05/19/2013                   WINONA             MN   911 CALL CENTER

            POWER LINES DOWN IN THE CITY. ONE TREE DOWN IN THE CITY
            AS WELL.

0523 PM     HAIL             4 N ST. CHARLES         44.03N 92.06W
05/19/2013  M1.00 INCH       WINONA             MN   AMATEUR RADIO

            ALSO LARGE PIECES OF TIN METAL 6 FT LONG BLOWN OUT

0523 PM     TSTM WND DMG     2 N ST. CHARLES         44.00N 92.06W
05/19/2013                   WINONA             MN   911 CALL CENTER

            STRUCTURE DAMAGE. LARGE TREES DOWN. POLE BARN DOWN ALONG
            WITH CORN CRIBS.

0553 PM     FLASH FLOOD      NORA SPRINGS            43.14N 93.01W
05/19/2013                   FLOYD              IA   911 CALL CENTER

            NUMEROUS ROADS UNDER WATER.

0557 PM     TSTM WND DMG     BUFFALO                 44.22N 91.87W
05/19/2013                   WABASHA            WI   LAW ENFORCEMENT

            POWER LINES DOWN IN THE CITY

0557 PM     TSTM WND DMG     3 S COCHRANE            44.19N 91.84W
05/19/2013                   BUFFALO            WI   LAW ENFORCEMENT

            TREES AND POWER LINES DOWN AROUND COCHRANE.

0608 PM     FLASH FLOOD      ST. ANSGAR              43.38N 92.92W
05/19/2013                   MITCHELL           IA   911 CALL CENTER

            DISPATCH CENTER REPORTS WIDESPREAD FLOODING OF SECONDARY
            ROADS ACROSS THE ENTIRE COUNTY.

0615 PM     HAIL             ELEVA                   44.58N 91.47W
05/19/2013  M1.00 INCH       TREMPEALEAU        WI   PUBLIC

            ALSO 50 MPH WIND GUSTS.

0615 PM     TSTM WND DMG     GILMANTON               44.46N 91.68W
05/19/2013                   BUFFALO            WI   EMERGENCY MNGR

            12 POWER POLES DOWN

0652 PM     FLASH FLOOD      2 W LE ROY              43.51N 92.55W
05/19/2013                   MOWER              MN   LAW ENFORCEMENT

            WATER RUNNING OVER ROAD ON STATE HWY 56 WEST OF LE ROY.
            RADAR ESTIMATES 3 TO 4 INCHES OF RAIN.

0721 PM     HAIL             LEWISTON                43.98N 91.87W
05/19/2013  M1.00 INCH       WINONA             MN   911 CALL CENTER

0721 PM     TSTM WND DMG     LEWISTON                43.98N 91.87W
05/19/2013                   WINONA             MN   LAW ENFORCEMENT

            TREES DOWN IN THE CITY

0723 PM     FLASH FLOOD      STACYVILLE              43.44N 92.78W
05/19/2013                   MITCHELL           IA   FIRE DEPT/RESCUE

            FIRE DEPARTMENT REPORTS 6 TO 7 INCHES OF RAIN HAS FALLEN.
            EVERY ROAD IN STACYVILLE IS IMPASSABLE AND FLOODED.
            SANDBAGS WERE BEING DEPLOYED ALONG THE LITTLE CEDAR
            RIVER...WHICH IS OUT OF ITS BANK.

0723 PM     FLASH FLOOD      OSAGE                   43.28N 92.81W
05/19/2013                   MITCHELL           IA   LAW ENFORCEMENT

            MITCHELL COUNTY DISPATCH REPORTS HWY 218 NORTH OF OSAGE
            IS IN THE PROCESS OF BEING SHUT DOWN DUE TO FLOODING.
            MANY ROADS ARE WASHED OUT...FROM THE SOUTHWEST PART OF
            THE COUNTY TO THE NORTHEAST.

0725 PM     TSTM WND DMG     3 SW LEWISTON           43.95N 91.91W
05/19/2013                   WINONA             MN   LAW ENFORCEMENT

            SEMI JACKED KNIFED ON I-90 IN WESTERN WINONA.

0728 PM     TSTM WND GST     1 S LEWISTON            43.97N 91.87W
05/19/2013  E65.00 MPH       WINONA             MN   LAW ENFORCEMENT

0730 PM     TSTM WND GST     1 S LEWISTON            43.97N 91.87W
05/19/2013  M74.00 MPH       WINONA             MN   TRAINED SPOTTER

0740 PM     TSTM WND DMG     ROLLINGSTONE            44.10N 91.82W
05/19/2013                   WINONA             MN   TRAINED SPOTTER

            LARGE TREE BRANCHES DOWN. SOME BRANCHES FELL ON VEHICLES
            AND ALSO ON A DECK...CAUSING DAMAGE

0740 PM     TSTM WND GST     WINONA                  44.05N 91.66W
05/19/2013  M62.00 MPH       WINONA             MN   TRAINED SPOTTER

0815 PM     FLASH FLOOD      OSAGE                   43.28N 92.81W
05/19/2013                   MITCHELL           IA   EMERGENCY MNGR

            HWY 218 BETWEEN OSAGE AND ST ANSGAR IS CLOSED. EM REPORTS
            90 PERCENT OF GRAVEL ROADS IN COUNTY ARE COVERED WITH
            WATER.

0825 PM     FLASH FLOOD      3 E AUSTIN              43.67N 92.91W
05/19/2013                   MOWER              MN   TRAINED SPOTTER

            ROSE CREEK NEAR JELLYSTONE CAMPGROUND /I-90 EXIT 187/
            RISING RAPIDLY AND LESS THAN A FOOT FROM GOING OVER ITS
            BANKS

0841 PM     HAIL             CHARLES CITY            43.07N 92.68W
05/19/2013  M0.50 INCH       FLOYD              IA   LAW ENFORCEMENT

0849 PM     FLASH FLOOD      ADAMS                   43.56N 92.72W
05/19/2013                   MOWER              MN   BROADCAST MEDIA

            ROADS AND BRIDGES COVERED WITH WATER

0855 PM     HEAVY RAIN       ST. ANSGAR              43.38N 92.92W
05/19/2013  M4.43 INCH       MITCHELL           IA   CO-OP OBSERVER

            OVER 3.5 INCHES SINCE 6 PM.

0912 PM     FLASH FLOOD      ADAMS                   43.56N 92.72W
05/19/2013                   MOWER              MN   LAW ENFORCEMENT

            SANDBAGGING TAKING PLACE IN ADAMS. COUNTY ROADS
            7...4...AND 11 ARE CLOSED DUE TO FLOODING.

0915 PM     TSTM WND DMG     NEW HAMPTON             43.06N 92.31W
05/19/2013                   CHICKASAW          IA   LAW ENFORCEMENT

            NUMEROUS TREES AND POWER LINES DOWN ACROSS NEW HAMPTON.
            SEVERAL HOMES HAVE GARAGES DAMAGED. OTHER BUILDINGS IN
            TOWN HEAVILY DAMAGED. A GRAIN ELEVATOR IN FREDERICKSBURG
            WAS DAMAGED.

0924 PM     TSTM WND DMG     NEW HAMPTON             43.06N 92.31W
05/19/2013                   CHICKASAW          IA   BROADCAST MEDIA

            TREE BRANCHES DOWN...BLOCKING A FEW STREETS.

0930 PM     TSTM WND DMG     CALMAR                  43.18N 91.87W
05/19/2013                   WINNESHIEK         IA   CO-OP OBSERVER

            MANY LARGE TREES WERE SNAPPED OFF QUITE A DISTANCE ABOVE
            THE GROUND IN THE SOUTHWEST AND NORTHEAST PORTIONS OF
            TOWN. SOME HOUSES HAD THEIR SIDING RIPPED OFF AND LOST
            SHINGLES FROM THEIR ROOFS. THE ALL-TERRAIN DEALERSHIP ON
            THE EDGE OF TOWN ALSO HAD SOME DAMAGE.

0934 PM     TSTM WND DMG     CALMAR                  43.18N 91.87W
05/19/2013                   WINNESHIEK         IA   TRAINED SPOTTER

            TREE BRANCHES DOWN ON POWER LINES.

0945 PM     FLOOD            OSAGE                   43.28N 92.81W
05/19/2013                   MITCHELL           IA   EMERGENCY MNGR

            HWY 9 BOTH EAST AND WEST OF OSAGE IS CLOSED DUE TO WATER
            OVER THE ROAD. HWY 218 NORTH OF OSAGE ALSO CLOSED FOR
            SEVERAL MILES. MANY COUNTY ROADS ALSO CLOSED

1000 PM     HEAVY RAIN       FILLMORE                43.75N 92.27W
05/19/2013  M2.39 INCH       FILLMORE           MN   MESONET

1000 PM     HEAVY RAIN       OSAGE                   43.28N 92.81W
05/19/2013  M3.84 INCH       MITCHELL           IA   MESONET

1000 PM     HEAVY RAIN       ELBA                    44.09N 92.02W
05/19/2013  M1.81 INCH       WINONA             MN   MESONET

1000 PM     TSTM WND DMG     POSTVILLE               43.08N 91.57W
05/19/2013                   ALLAMAKEE          IA   911 CALL CENTER

            TREESS DOWN IN POSTVILLE

1000 PM     HEAVY RAIN       ROCHESTER AIRPORT       43.91N 92.50W
05/19/2013  M1.51 INCH       OLMSTED            MN   ASOS

1004 PM     TSTM WND GST     DECORAH                 43.31N 91.79W
05/19/2013  E45.00 MPH       WINNESHIEK         IA   TRAINED SPOTTER

            SMALL BRANCHES DOWN.

1010 PM     TSTM WND DMG     WAUKON                  43.27N 91.48W
05/19/2013                   ALLAMAKEE          IA   911 CALL CENTER

            TREES DOWN IN WAUKON

1045 PM     TSTM WND DMG     WESTBY                  43.65N 90.86W
05/19/2013                   VERNON             WI   911 CALL CENTER

            TREES DOWN IN WESTBY ACROSS HWY 14

1146 PM     TSTM WND DMG     LANCASTER               42.85N 90.71W
05/19/2013                   GRANT              WI   911 CALL CENTER

            TREE DOWN IN LANCASTER

1150 PM     HAIL             3 E POTOSI              42.69N 90.65W
05/19/2013  M1.75 INCH       GRANT              WI   TRAINED SPOTTER

1213 AM     HEAVY RAIN       GRAND MEADOW            43.71N 92.57W
05/20/2013  M2.21 INCH       MOWER              MN   CO-OP OBSERVER

1237 AM     TSTM WND GST     LONE ROCK               43.18N 90.20W
05/20/2013  M60.00 MPH       RICHLAND           WI   ASOS

            LONE ROCK ASOS GUSTED TO 52 KTS AT 0537Z.

0125 AM     FLASH FLOOD      ROSE CREEK              43.60N 92.83W
05/20/2013                   MOWER              MN   BROADCAST MEDIA

            ROSE CREEK IS RISING RAPIDLY...AND HAS INUNDATED
            JELLYSTONE CAMPGROUND OFF I-90.

0153 AM     FLASH FLOOD      ROSE CREEK              43.60N 92.83W
05/20/2013                   MOWER              MN   LAW ENFORCEMENT

            3 EMPTY VEHICLES SURROUNDED BY RISING WATERS IN
            JELLYSTONE CAMPGROUND. DEPUTY REPORTS SIGNIFICANT
            FLOODING AT THE CAMPGROUND.

0202 AM     HEAVY RAIN       DOVER                   43.97N 92.13W
05/20/2013  M2.52 INCH       OLMSTED            MN   MESONET

&&

BOYNE

The office that day

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

IssuedProductOfficeCountiesLasted
May 19, 7:10 PM CDTTornado WarningARXWinona35 min
May 19, 9:01 PM CDTRiver Flood WarningARXOlmsted, Winona25 hr
May 19, 9:26 PM CDTSevere Thunderstorm WarningARXFillmore, Houston64 min
May 19, 10:12 PM CDTSevere Thunderstorm WarningARXHouston, Winona48 min
May 20, 12:08 AM CDTAreal Flood WarningARXMower16 hr
May 20, 10:41 AM CDTAreal Flood WarningARXFillmore, Olmsted5 hr
May 20, 11:12 AM CDTRiver Flood WarningARXFillmore, Houston35 hr
May 20, 3:22 PM CDTRiver Flood WarningARXHouston66 hr
May 20, 3:38 PM CDTAreal Flood WarningARXFillmore, Mower, Olmsted6 hr

Nearby

River Flood Warnings in Minnesota, 2013Every river flood warning in 2013

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.