Alert archive / Minnesota / River Flood Warnings in 2011

River Flood Warning 57, NWS Sioux Falls, SD

April 10, 2011Lyon County, Minnesota

NWS Sioux Falls, SD issued this river flood warning at Apr 10, 2011, 10:42 AM CDT for Lyon County, Minnesota. It took effect at Apr 10, 2011, 11:10 AM CDT. It was in force for 22 hr.

The area

The counties it named.

The facts

Issued: Apr 10, 2011, 10:42 AM CDT (15:42 UTC)
In effect from: Apr 10, 2011, 11:10 AM CDT
Expired: Apr 11, 2011, 9:07 AM CDT
In force: 22 hr
Issued by: NWS Sioux Falls, SD
Flood severity: Minor

County Lyon County, MN

The radar

The Sioux Falls radar (KFSD), 116 km from the middle of the area, began a volume at 15:44 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 text

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

746 
WGUS43 KFSD 101542
FLWFSD
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1042 AM CDT SUN APR 10 2011

...THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A FLOOD 
WARNING FOR THE FOLLOWING RIVERS IN MINNESOTA...

  REDWOOD RIVER NEAR MARSHALL 
   
.THE FOLLOWING RIVER FORECASTS INCLUDE FORECAST PRECIPITATION THROUGH
TONIGHT. ANY ADDITIONAL FUTURE RAINS COULD AFFECT THE CREST 
FORECASTS. 

RAINFALL FROM THUNDERSTORMS LAST NIGHT HAS RISEN THE RIVER LEVELS ON
THE REDWOOD RIVER. THE RIVER SHOULD CREST LATE TODAY AND TONIGHT...
THEN BEGIN FALLING.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

SAFETY MESSAGE...DO NOT DRIVE CARS THROUGH FLOODED AREAS.  THE WATER 
DEPTH AND ROAD CONDITION MAY BE UNSAFE.

ADDITIONAL INFORMATION IS AVAILABLE AT 
 
HTTP://WWW.WATER.WEATHER.GOV/AHPS2/INDEX.PHP?WFO=FSD

STAY TUNED FOR FURTHER UPDATES BY LISTENING TO NOAA WEATHER RADIO...
OR YOUR LOCAL RADIO AND TV STATIONS.

THE NEXT SCHEDULED STATEMENT WILL BE ISSUED TOMORROW MORNING. 

&&

MNC083-111942-
/O.NEW.KFSD.FL.W.0057.110410T1610Z-110412T1200Z/
/MMLM5.1.ER.110410T1610Z.110411T0000Z.110411T1200Z.NO/
1042 AM CDT SUN APR 10 2011

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A 

* FLOOD WARNING FOR 
  THE REDWOOD RIVER NEAR MARSHALL.
* UNTIL TUESDAY MORNING.
* AT 09AM SUNDAY THE STAGE WAS 13.9 FEET.
* MINOR FLOODING IS FORECAST.
* FLOOD STAGE IS 14.0 FEET.
* FORECAST...RISE ABOVE FLOOD STAGE BY 11 AM SUNDAY AND CREST NEAR 
  14.2 FEET BY SUNDAY EVENING APRIL 10. THE RIVER WILL FALL BELOW FLOOD 
  STAGE BY MONDAY APRIL 11.
* AT STAGES NEAR 14.0 FEET...THERE WILL BE MINOR FLOODING OF LOW 
  LYING AREAS OUTSIDE OF MARSHALL. 

$$

&& 
LOCATION FLOOD  LATEST OBSERVED  MAXIMUM FORECAST  RECENT OBSERVED
         STAGE  STAGE  TIME      STAGE   TIME      CREST  TIME

REDWOOD RIVER
MMLM5    14.0   13.88  SUN 9 AM   14.2  SUN 7 PM

2 follow-up statements

877 
WGUS83 KFSD 101618
FLSFSD
FLOOD STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1118 AM CDT SUN APR 10 2011

...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN 
SOUTH DAKOTA...MINNESOTA...

  JAMES RIVER AT HURON
  JAMES RIVER NEAR FORESTBURG
  JAMES RIVER AT MITCHELL
  JAMES RIVER NEAR SCOTLAND
  JAMES RIVER ABOVE YANKTON
  BIG SIOUX RIVER NEAR BRUCE
  BIG SIOUX RIVER NEAR BROOKINGS
  BIG SIOUX RIVER NEAR DELL RAPIDS
  BIG SIOUX RIVER AT SIOUX FALLS 60TH STREET
  BIG SIOUX RIVER AT SIOUX FALLS NORTH CLIFF
  BIG SIOUX RIVER AT HAWARDEN
  BIG SIOUX RIVER AT AKRON
  DES MOINES RIVER NEAR WINDOM
  DES MOINES RIVER AT JACKSON 
  REDWOOD RIVER AT RUSSELL
  REDWOOD RIVER NEAR MARSHALL
   
.THE FOLLOWING RIVER FORECASTS INCLUDE FORECAST PRECIPITATION THROUGH
TONIGHT. ANY ADDITIONAL FUTURE RAINS COULD AFFECT THE CREST 
FORECASTS. 
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

SAFETY MESSAGE...DO NOT DRIVE CARS THROUGH FLOODED AREAS.  THE WATER 
DEPTH AND ROAD CONDITION MAY BE UNSAFE.

ADDITIONAL INFORMATION IS AVAILABLE AT 
 
HTTP://WWW.WATER.WEATHER.GOV/AHPS2/INDEX.PHP?WFO=FSD

STAY TUNED FOR FURTHER UPDATES BY LISTENING TO NOAA WEATHER RADIO...
OR YOUR LOCAL RADIO AND TV STATIONS.

THE NEXT SCHEDULED STATEMENT WILL BE ISSUED TOMORROW MORNING. 

&&

SDC005-120418-
/O.CON.KFSD.FL.W.0015.000000T0000Z-000000T0000Z/
/HURS2.3.SM.110320T1215Z.110326T0915Z.000000T0000Z.NO/
1118 AM CDT SUN APR 10 2011

THE FLOOD WARNING CONTINUES FOR
  THE JAMES RIVER AT HURON.
* UNTIL FURTHER NOTICE.
* AT 09AM SUNDAY THE STAGE WAS 17.0 FEET.
* FLOOD STAGE IS 11.0 FEET.
* FORECAST...THE RIVER WILL SLOWLY FALL FOR THE NEXT SEVERAL WEEKS.
* AT STAGES NEAR 16.5 FEET...JERSEY...RIVERSIDE...AND SHERMAN WILL 
  BEGIN FLOODING. 

$$

SDC111-120417-
/O.CON.KFSD.FL.W.0016.000000T0000Z-000000T0000Z/
/FORS2.3.SM.110319T1444Z.110325T2015Z.000000T0000Z.NR/
1118 AM CDT SUN APR 10 2011

THE FLOOD WARNING CONTINUES FOR
  THE JAMES RIVER NEAR FORESTBURG.
* UNTIL FURTHER NOTICE.
* AT 09AM SUNDAY THE STAGE WAS 16.0 FEET.
* FLOOD STAGE IS 12.0 FEET.
* FORECAST...THE RIVER WILL SLOWLY FALL FOR THE NEXT SEVERAL WEEKS. 
* AT STAGES NEAR 16.0 FEET...MOST OF THE FLOOD PLAIN IS UNDER 
  WATER...AND THE WATER REACHES THE BOTTOM OF THE BRIDGE ON HIGHWAY 34.

$$

SDC035-061-120417-
/O.CON.KFSD.FL.W.0017.000000T0000Z-000000T0000Z/
/JRMS2.3.SM.110317T0025Z.110328T0415Z.000000T0000Z.NR/
1118 AM CDT SUN APR 10 2011

THE FLOOD WARNING CONTINUES FOR
  THE JAMES RIVER AT MITCHELL.
* UNTIL FURTHER NOTICE.
* AT 09AM SUNDAY THE STAGE WAS 22.0 FEET.
* FLOOD STAGE IS 17.0 FEET.
* FORECAST...THE RIVER WILL SLOWLY FALL FOR THE NEXT SEVERAL WEEKS.
* AT STAGES NEAR 22.0 FEET...WATER OVERTOPS 257TH STREET ABOUT 100 
  YARDS EAST OF THE BRIDGE. 

$$

SDC067-135-120417-
/O.CON.KFSD.FL.W.0018.000000T0000Z-000000T0000Z/
/SCOS2.3.SM.000000T0000Z.110328T0815Z.000000T0000Z.NR/
1118 AM CDT SUN APR 10 2011

THE FLOOD WARNING CONTINUES FOR
  THE JAMES RIVER NEAR SCOTLAND.
* UNTIL FURTHER NOTICE.
* AT 09AM SUNDAY THE STAGE WAS 17.4 FEET.
* FLOOD STAGE IS 13.0 FEET.
* FORECAST...THE RIVER WILL VERY SLOWLY FALL FOR THE NEXT SEVERAL
  WEEKS. 
* AT STAGES NEAR 18.0 FEET...HIGHWAY 44 SOUTH OF MILLTOWN AND KEIBER 
  ROAD IN MILLTOWN WILL BE FLOODED. 

$$

SDC135-120417-
/O.CON.KFSD.FL.W.0019.000000T0000Z-000000T0000Z/
/YNNS2.3.SM.110321T1445Z.110329T0331Z.000000T0000Z.NO/
1118 AM CDT SUN APR 10 2011

THE FLOOD WARNING CONTINUES FOR
  THE JAMES RIVER ABOVE YANKTON.
* UNTIL FURTHER NOTICE.
* AT 09AM SUNDAY THE STAGE WAS 18.5 FEET.
* FLOOD STAGE IS 12.0 FEET.
* FORECAST...THE RIVER WILL SLOWLY FALL FOR THE NEXT SEVERAL WEEKS. 
* AT STAGES NEAR 17.0 FEET...SW JIM RIVER ROAD NORTH OF 303RD STREET 
  BEGINS FLOODING. 

$$

SDC011-120417-
/O.CON.KFSD.FL.W.0044.000000T0000Z-000000T0000Z/
/BRCS2.3.ER.110320T0515Z.110328T1430Z.000000T0000Z.NR/
1118 AM CDT SUN APR 10 2011

THE FLOOD WARNING CONTINUES FOR
  THE BIG SIOUX RIVER NEAR BRUCE.
* UNTIL FURTHER NOTICE.
* AT 09AM SUNDAY THE STAGE WAS ESTIMATED AT 10.4 FEET.
* FLOOD STAGE IS 8.0 FEET.
* AT STAGES NEAR 10.5 FEET...198TH STREET AND 199TH STREET BETWEEN 
  466TH AND 467TH AVENUES ARE FLOODED...AS IS 202ND STREET BETWEEN 
  465TH AND 467TH AVENUES...AND 465TH AVENUE BETWEEN 203RD AND 204TH 
  STREETS. 

$$

SDC011-101-120417-
/O.CON.KFSD.FL.W.0020.000000T0000Z-000000T0000Z/
/BRKS2.3.SM.110319T1930Z.110325T0146Z.000000T0000Z.NO/
1118 AM CDT SUN APR 10 2011

THE FLOOD WARNING CONTINUES FOR
  THE BIG SIOUX RIVER NEAR BROOKINGS.
* UNTIL FURTHER NOTICE.
* AT 09AM SUNDAY THE STAGE WAS 11.7 FEET.
* FLOOD STAGE IS 9.0 FEET.
* FORECAST...THE RIVER WILL REMAIN NEARLY STEADY THROUGH THURSDAY 
  APRIL 14...THEN BEGIN SLOWLY FALLING.
* AT STAGES NEAR 11.7 FEET...473RD AVENUE SOUTH OF THE GAGE BEGINS TO
  FLOOD. 

$$

SDC099-101-120417-
/O.CON.KFSD.FL.W.0021.000000T0000Z-000000T0000Z/
/DERS2.3.SM.110317T2100Z.110324T1530Z.000000T0000Z.NR/
1118 AM CDT SUN APR 10 2011

THE FLOOD WARNING CONTINUES FOR
  THE BIG SIOUX RIVER NEAR DELL RAPIDS.
* UNTIL FURTHER NOTICE.
* AT 09AM SUNDAY THE STAGE WAS 13.7 FEET.
* FLOOD STAGE IS 12.0 FEET.
* FORECAST...THE RIVER WILL VERY SLOWLY FALL FOR THE NEXT SEVERAL 
  WEEKS. 
* AT STAGES NEAR 14.0 FEET...SIGNIFICANT AMOUNTS OF AGRICULTURAL 
  LANDS ARE FLOODED THROUGH THE BASIN. 

$$

SDC099-120417-
/O.CON.KFSD.FL.W.0022.000000T0000Z-000000T0000Z/
/SFLS2.2.SM.110317T2230Z.110326T0745Z.000000T0000Z.NO/
1118 AM CDT SUN APR 10 2011

THE FLOOD WARNING CONTINUES FOR
  THE BIG SIOUX RIVER AT SIOUX FALLS 60TH STREET.
* UNTIL FURTHER NOTICE.
* AT 09AM SUNDAY THE STAGE WAS 13.3 FEET.
* FLOOD STAGE IS 12.0 FEET.
* FORECAST...THE RIVER WILL SLOWLY FALL FOR THE NEXT TWO WEEKS.
* AT STAGES NEAR 14.0 FEET...SOME FARM BUILDINGS BETWEEN RENNER AND 
  SIOUX FALLS ARE THREATENED BY HIGH WATER. 

$$

IAC119-SDC083-099-120417-
/O.EXT.KFSD.FL.W.0023.000000T0000Z-000000T0000Z/
/SXFS2.2.SM.110320T0932Z.110326T0315Z.000000T0000Z.NO/
1118 AM CDT SUN APR 10 2011

THE FLOOD WARNING CONTINUES FOR
  THE BIG SIOUX RIVER AT SIOUX FALLS NORTH CLIFF.
* UNTIL FURTHER NOTICE.
* AT 09AM SUNDAY THE STAGE WAS 17.5 FEET.
* FLOOD STAGE IS 16.0 FEET.
* FORECAST...THE RIVER WILL VERY SLOWLY FALL FOR THE TWO WEEKS.
* AT STAGES NEAR 17.5 FEET...60TH STREET NORTH AND TIMBERLINE ROAD 
  BEGIN TO FLOOD. 

$$

IAC167-SDC083-127-120417-
/O.CON.KFSD.FL.W.0024.000000T0000Z-000000T0000Z/
/HAWI4.2.SM.110317T2239Z.110326T1430Z.000000T0000Z.NO/
1118 AM CDT SUN APR 10 2011

THE FLOOD WARNING CONTINUES FOR
  THE BIG SIOUX RIVER AT HAWARDEN.
* UNTIL FURTHER NOTICE.
* FLOOD STAGE IS 15.0 FEET.
* FORECAST...THE RIVER WILL REMAIN NEARLY STATIONARY THROUGH
  MID WEEK. 
* AT STAGES NEAR 15.0 FEET...AGRICULTURAL FLOODING BEGINS ON THE 
  SOUTH DAKOTA SIDE OF THE RIVER. 

$$

IAC149-SDC127-120417-
/O.CON.KFSD.FL.W.0025.000000T0000Z-000000T0000Z/
/AKRI4.3.SM.110318T0400Z.110327T0400Z.000000T0000Z.NO/
1118 AM CDT SUN APR 10 2011

THE FLOOD WARNING CONTINUES FOR
  THE BIG SIOUX RIVER AT AKRON.
* UNTIL FURTHER NOTICE.
* AT 09AM SUNDAY THE STAGE WAS 17.6 FEET.
* FLOOD STAGE IS 16.0 FEET.
* FORECAST...THE RIVER WILL REMAIN NEARLY STATIONARY THROUGH 
  MID WEEK. 
* AT STAGES NEAR 17.0 FEET...ABOUT 6500 ACRES OF FARM LAND ARE 
  FLOODED. 

$$

MNC033-063-120417-
/O.CON.KFSD.FL.W.0049.000000T0000Z-000000T0000Z/
/WDOM5.2.ER.110321T0710Z.110324T1400Z.000000T0000Z.NO/
1118 AM CDT SUN APR 10 2011

THE FLOOD WARNING CONTINUES FOR
  THE DES MOINES RIVER NEAR WINDOM.
* UNTIL FURTHER NOTICE.
* AT 09AM SUNDAY THE STAGE WAS 19.1 FEET.
* FLOOD STAGE IS 19.0 FEET.
* AT STAGES NEAR 19.0 FEET...MINOR LOWLAND FLOODING BEGINS ALONG THE 
  LOWER EAST BANK. 

$$

MNC063-120417-
/O.EXT.KFSD.FL.W.0026.000000T0000Z-110416T1800Z/
/JCKM5.2.SM.110320T1408Z.110326T1400Z.110415T1800Z.NO/
1118 AM CDT SUN APR 10 2011

...FLOOD WARNING EXTENDED UNTIL 1 PM SATURDAY... 
THE FLOOD WARNING CONTINUES FOR
  THE DES MOINES RIVER AT JACKSON.
* UNTIL SATURDAY AFTERNOON.
* AT 09AM SUNDAY THE STAGE WAS 13.1 FEET.
* FLOOD STAGE IS 12.0 FEET.
* FORECAST...THE RIVER WILL CONTINUE TO FALL TO BELOW FLOOD STAGE BY 
  FRIDAY APRIL 15.
* AT STAGES NEAR 12.0 FEET...LOWLAND FLOODING IN RURAL AREAS BEGINS 
  ON NON-LEVEED PORTIONS OF THE RIVER. 

$$

MNC083-120417-
/O.CON.KFSD.FL.W.0056.000000T0000Z-000000T0000Z/
/RUSM5.1.ER.110410T0417Z.110410T1200Z.000000T0000Z.NO/
1118 AM CDT SUN APR 10 2011

THE FLOOD WARNING CONTINUES FOR
  THE REDWOOD RIVER AT RUSSELL.
* UNTIL FURTHER NOTICE.
* AT 09AM SUNDAY THE STAGE WAS 14.9 FEET.
* FLOOD STAGE IS 14.0 FEET.
* AT STAGES NEAR 14.0 FEET...THE RIGHT BANK OVERFLOWS FLOODING SOME 
  LOW LYING AREAS. 

$$

MNC083-120417-
/O.CON.KFSD.FL.W.0057.110410T1610Z-110412T1200Z/
/MMLM5.1.ER.110410T1610Z.110411T0000Z.110411T1200Z.NO/
1118 AM CDT SUN APR 10 2011

THE FLOOD WARNING CONTINUES FOR
  THE REDWOOD RIVER NEAR MARSHALL.
* UNTIL TUESDAY MORNING.
* AT 09AM SUNDAY THE STAGE WAS 13.9 FEET.
* FLOOD STAGE IS 14.0 FEET.
* FORECAST...RISE ABOVE FLOOD STAGE BY 11 AM SUNDAY AND CREST NEAR 
  14.2 FEET BY SUNDAY APRIL 10. THE RIVER WILL FALL BELOW FLOOD STAGE
  BY MONDAY APRIL 11.
* AT STAGES NEAR 14.0 FEET...THERE WILL BE MINOR FLOODING OF LOW 
  LYING AREAS OUTSIDE OF MARSHALL. 

$$

&& 
LOCATION FLOOD  LATEST OBSERVED  MAXIMUM FORECAST  RECENT OBSERVED
         STAGE  STAGE  TIME      STAGE   TIME      CREST  TIME

JAMES RIVER
HURS2    11.0   16.99 SUN  9 AM                    18.6  THU MAR 31
FORS2    12.0   15.96 SUN  9 AM                    18.2  THU MAR 31
JRMS2    17.0   21.97 SUN 10 AM                    23.9  THU MAR 31
SCOS2    13.0   17.35 SUN  9 AM                    19.0  THU MAR 31
YNNS2    12.0   18.54 SUN 10 AM                    21.5  THU MAR 31

BIG SIOUX RIVER
BRCS2     8.0  E10.40 SUN  9 AM                    10.5  TUE APR 05
BRKS2     9.0   11.73 SUN 10 AM                    12.0  WED APR 06
DERS2    12.0   13.68 SUN  9 AM                    13.8  FRI APR 08
SFLS2    12.0   13.31 SUN  9 AM                    13.6  THU MAR 31
SXFS2    16.0   17.53 SUN  9 AM                    18.4  THU MAR 31
HAWI4    15.0      M                               18.1  THU MAR 31
AKRI4    16.0   17.64 SUN  9 AM                    19.4  THU MAR 31

WEST FORK DES MOINES RIVER
WDOM5    19.0   19.15 SUN  9 AM                     20.6  THU MAR 31
JCKM5    12.0   13.09 SUN  9 AM                     15.1  WED MAR 30

REDWOOD RIVER
RUSM5    14.0   14.87 SUN 9 AM                      15.1  SUN APR 10
MMLM5    14.0   13.88 SUN 9 AM    14.2  SUN 7 PM

175 
WGUS83 KFSD 111407
FLSFSD
FLOOD STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
907 AM CDT MON APR 11 2011

...THE FLOOD WARNING IS CANCELLED FOR THE FOLLOWING RIVERS IN 
MINNESOTA...

  DES MOINES RIVER NEAR WINDOM 
  REDWOOD RIVER NEAR MARSHALL 

...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN SOUTH 
DAKOTA...IOWA...MINNESOTA...

  BIG SIOUX RIVER NEAR BRUCE
  BIG SIOUX RIVER NEAR BROOKINGS
  BIG SIOUX RIVER NEAR DELL RAPIDS
  BIG SIOUX RIVER AT SIOUX FALLS 60TH STREET
  BIG SIOUX RIVER AT SIOUX FALLS NORTH CLIFF
  BIG SIOUX RIVER AT HAWARDEN
  BIG SIOUX RIVER AT AKRON
  DES MOINES RIVER AT JACKSON
  REDWOOD RIVER AT RUSSELL
   
.THE FOLLOWING RIVER FORECASTS INCLUDE FORECAST PRECIPITATION THROUGH
TONIGHT. ANY ADDITIONAL FUTURE RAINS COULD AFFECT THE CREST 
FORECASTS. 
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

SAFETY MESSAGE...DO NOT DRIVE CARS THROUGH FLOODED AREAS.  THE WATER 
DEPTH AND ROAD CONDITION MAY BE UNSAFE.

ADDITIONAL INFORMATION IS AVAILABLE AT 
 
HTTP://WWW.WATER.WEATHER.GOV/AHPS2/INDEX.PHP?WFO=FSD

STAY TUNED FOR FURTHER UPDATES BY LISTENING TO NOAA WEATHER RADIO...
OR YOUR LOCAL RADIO AND TV STATIONS.

THE NEXT SCHEDULED STATEMENT WILL BE ISSUED TOMORROW MORNING. 

&&

SDC011-130207-
/O.CON.KFSD.FL.W.0044.000000T0000Z-000000T0000Z/
/BRCS2.3.ER.110320T0515Z.110328T1430Z.000000T0000Z.NR/
907 AM CDT MON APR 11 2011

THE FLOOD WARNING CONTINUES FOR
  THE BIG SIOUX RIVER NEAR BRUCE.
* UNTIL FURTHER NOTICE.
* AT 08AM MONDAY THE STAGE WAS 10.4 FEET.
* FLOOD STAGE IS 8.0 FEET.
* AT STAGES NEAR 10.5 FEET...198TH STREET AND 199TH STREET BETWEEN 
  466TH AND 467TH AVENUES ARE FLOODED...AS IS 202ND STREET BETWEEN 
  465TH AND 467TH AVENUES...AND 465TH AVENUE BETWEEN 203RD AND 204TH 
  STREETS. 

$$

SDC011-101-130206-
/O.CON.KFSD.FL.W.0020.000000T0000Z-000000T0000Z/
/BRKS2.3.SM.110319T1930Z.110325T0146Z.000000T0000Z.NO/
907 AM CDT MON APR 11 2011

THE FLOOD WARNING CONTINUES FOR
  THE BIG SIOUX RIVER NEAR BROOKINGS.
* UNTIL FURTHER NOTICE.
* AT 08AM MONDAY THE STAGE WAS 11.7 FEET.
* FLOOD STAGE IS 9.0 FEET.
* FORECAST...THE RIVER WILL CONTINUE TO SLOWLY FALL FOR THE NEXT
  SEVERAL DAYS.
* AT STAGES NEAR 11.7 FEET...473RD AVENUE SOUTH OF THE GAGE BEGINS TO
  FLOOD. 

$$

SDC099-101-130206-
/O.CON.KFSD.FL.W.0021.000000T0000Z-000000T0000Z/
/DERS2.3.SM.110317T2100Z.110324T1530Z.000000T0000Z.NR/
907 AM CDT MON APR 11 2011

THE FLOOD WARNING CONTINUES FOR
  THE BIG SIOUX RIVER NEAR DELL RAPIDS.
* UNTIL FURTHER NOTICE.
* AT 08AM MONDAY THE STAGE WAS 13.9 FEET.
* FLOOD STAGE IS 12.0 FEET.
* FORECAST...THE RIVER WILL CREST NEAR 13.9 FEET BY MONDAY APRIL 11 
  THEN BEGIN FALLING.
* AT STAGES NEAR 14.0 FEET...SIGNIFICANT AMOUNTS OF AGRICULTURAL 
  LANDS ARE FLOODED THROUGH THE BASIN. 

$$

SDC099-130206-
/O.CON.KFSD.FL.W.0022.000000T0000Z-000000T0000Z/
/SFLS2.2.SM.110317T2230Z.110326T0745Z.000000T0000Z.NO/
907 AM CDT MON APR 11 2011

THE FLOOD WARNING CONTINUES FOR
  THE BIG SIOUX RIVER AT SIOUX FALLS 60TH STREET.
* UNTIL FURTHER NOTICE.
* AT 08AM MONDAY THE STAGE WAS 13.3 FEET.
* FLOOD STAGE IS 12.0 FEET.
* FORECAST...THE RIVER WILL CREST NEAR 13.4 FEET BY MONDAY APRIL 11 
  THEN BEGIN FALLING.
* AT STAGES NEAR 14.0 FEET...SOME FARM BUILDINGS BETWEEN RENNER AND 
  SIOUX FALLS ARE THREATENED BY HIGH WATER. 

$$

IAC119-SDC083-099-130206-
/O.CON.KFSD.FL.W.0023.000000T0000Z-000000T0000Z/
/SXFS2.2.SM.110320T0932Z.110326T0315Z.000000T0000Z.NO/
907 AM CDT MON APR 11 2011

THE FLOOD WARNING CONTINUES FOR
  THE BIG SIOUX RIVER AT SIOUX FALLS NORTH CLIFF.
* UNTIL FURTHER NOTICE.
* AT 12AM MONDAY THE STAGE WAS 17.4 FEET.
* FLOOD STAGE IS 16.0 FEET.
* FORECAST...THE RIVER WILL CREST NEAR 17.6 FEET BY MONDAY APRIL 11 
  THEN BEGIN FALLING.
* AT STAGES NEAR 17.5 FEET...60TH STREET NORTH AND TIMBERLINE ROAD 
  BEGIN TO FLOOD. 

$$

IAC167-SDC083-127-130206-
/O.CON.KFSD.FL.W.0024.000000T0000Z-000000T0000Z/
/HAWI4.2.SM.110317T2239Z.110326T1430Z.000000T0000Z.NO/
907 AM CDT MON APR 11 2011

THE FLOOD WARNING CONTINUES FOR
  THE BIG SIOUX RIVER AT HAWARDEN.
* UNTIL FURTHER NOTICE.
* AT 07AM MONDAY THE STAGE WAS ESTIMATED AT 16.4 FEET.
* FLOOD STAGE IS 15.0 FEET.
* FORECAST...THE RIVER WILL CREST NEAR 16.6 FEET BY 7 AM
  THURSDAY THEN BEGIN FALLING.

$$

IAC149-SDC127-130206-
/O.CON.KFSD.FL.W.0025.000000T0000Z-000000T0000Z/
/AKRI4.3.SM.110318T0400Z.110327T0400Z.000000T0000Z.NO/
907 AM CDT MON APR 11 2011

THE FLOOD WARNING CONTINUES FOR
  THE BIG SIOUX RIVER AT AKRON.
* UNTIL FURTHER NOTICE.
* AT 08AM MONDAY THE STAGE WAS 17.7 FEET.
* FLOOD STAGE IS 16.0 FEET.
* FORECAST...THE RIVER WILL REMAIN NEAR 17.8 FEET FOR THE NEXT
  FEW DAYS THEN BEGIN FALLING.
* AT STAGES NEAR 17.0 FEET...ABOUT 6500 ACRES OF FARM LAND ARE 
  FLOODED. 

$$

MNC033-063-111437-
/O.CAN.KFSD.FL.W.0049.000000T0000Z-110411T1407Z/
/WDOM5.2.ER.110321T0710Z.110324T1400Z.110411T1130Z.NO/
907 AM CDT MON APR 11 2011

THE FLOOD WARNING IS CANCELLED FOR
  THE DES MOINES RIVER NEAR WINDOM.
* AT 08AM MONDAY THE STAGE WAS 18.97 FEET.
* FLOOD STAGE IS 19.0 FEET.
* RECENT ACTIVITY...THE RIVER FELL BELOW FLOOD STAGE ON MONDAY APRIL 
  11.
* AT STAGES NEAR 19.0 FEET...MINOR LOWLAND FLOODING BEGINS ALONG THE 
  LOWER EAST BANK. 

$$

MNC063-130206-
/O.CON.KFSD.FL.W.0026.000000T0000Z-110416T1800Z/
/JCKM5.2.SM.110320T1408Z.110326T1400Z.110415T1800Z.NO/
907 AM CDT MON APR 11 2011

THE FLOOD WARNING CONTINUES FOR
  THE DES MOINES RIVER AT JACKSON.
* UNTIL SATURDAY AFTERNOON.
* AT 08AM MONDAY THE STAGE WAS 12.7 FEET.
* FLOOD STAGE IS 12.0 FEET.
* FORECAST...THE RIVER WILL FALL BELOW FLOOD STAGE BY SATURDAY
  APRIL 16.
* AT STAGES NEAR 12.0 FEET...LOWLAND FLOODING IN RURAL AREAS BEGINS 
  ON NON-LEVEED PORTIONS OF THE RIVER. 

$$

MNC083-130206-
/O.CON.KFSD.FL.W.0056.000000T0000Z-000000T0000Z/
/RUSM5.1.ER.110410T0417Z.110410T1200Z.000000T0000Z.NO/
907 AM CDT MON APR 11 2011

THE FLOOD WARNING CONTINUES FOR
  THE REDWOOD RIVER AT RUSSELL.
* UNTIL FURTHER NOTICE.
* AT 08AM MONDAY THE STAGE WAS 14.4 FEET.
* FLOOD STAGE IS 14.0 FEET.
* AT STAGES NEAR 14.0 FEET...THE RIGHT BANK OVERFLOWS FLOODING SOME 
  LOW LYING AREAS. 

$$

MNC083-111437-
/O.CAN.KFSD.FL.W.0057.000000T0000Z-110412T1200Z/
/MMLM5.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
907 AM CDT MON APR 11 2011

THE FLOOD WARNING IS CANCELLED FOR
  THE REDWOOD RIVER NEAR MARSHALL.
* AT 08AM MONDAY THE STAGE WAS 13.3 FEET.
* FLOOD STAGE IS 14.0 FEET.
* FORECAST...THE RIVER CRESTED BELOW FLOOD STAGE AT 13.9 FEET.  THE 
  RIVER WILL FALL TO 13.0 FEET BY 7 AM TUESDAY.
* AT STAGES NEAR 14.0 FEET...THERE WILL BE MINOR FLOODING OF LOW 
  LYING AREAS OUTSIDE OF MARSHALL. 

$$

&& 
LOCATION FLOOD  LATEST OBSERVED  MAXIMUM FORECAST  RECENT OBSERVED
         STAGE  STAGE  TIME      STAGE  TIME       CREST TIME

BIG SIOUX RIVER
BRCS2     8.0   10.41 MON 9 AM                      10.5  TUE APR 05
BRKS2     9.0   11.70 MON 9 AM                      12.0  WED APR 06
DERS2    12.0   13.87 MON 8 AM    13.9  MON 1 PM
SFLS2    12.0   13.26 MON 8 AM    13.4  MON 1 PM
SXFS2    16.0   17.44 MON 12 AM   17.6  MON 1 PM 
HAWI4    15.0  E16.40 MON 7 AM    16.6  THU 7 AM 
AKRI4    16.0   17.70 MON 8 AM    17.8  TUE 1 AM 

WEST FORK DES MOINES RIVER
WDOM5    19.0   18.97 MON 8 AM                      20.4  FRI APR 01
JCKM5    12.0   12.67 MON 8 AM                      14.6  FRI APR 01

REDWOOD RIVER
RUSM5    14.0   14.43 MON 8 AM                      15.1  SUN APR 10
MMLM5    14.0   13.32 MON 8 AM                      13.9  SUN APR 10

MG

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 Sioux Falls, SD wrote its last area forecast discussion before this river flood warning went out at Apr 10, 4:55 AM CDT, 5 hours 47 minutes earlier.

Area forecast discussion, Apr 10, 4:55 AM CDT, 5 hours 47 minutes before

AREA FORECAST DISCUSSION FOR SOUTHEAST SD/SOUTHWEST MN/NORTHWEST IA
NATIONAL WEATHER SERVICE SIOUX FALLS SD
455 AM CDT SUN APR 10 2011

.DISCUSSION...
AREA IN THE WAKE OF SIGNIFICANT APRIL CONVECTIVE EVENT...WHICH
PRODUCED FAIRLY EXPANSIVE LARGE HAIL...AND A FEW TORNADOES CLOSER TO
THE LATE SATURDAY WARM FRONTAL POSITION THROUGH NW IA. AT THIS
TIME...THE LOW LEVEL JET NOW FULLY VEERED TOWARD IA AND MN...WITH
MAIN WAVE STILL WAY BACK IN NORTHERN CO...BUT LEADING EFFECTS
STARTING TO FILL IN RAIN BAND WITHIN MID LEVEL TROUGH ACROSS WESTERN
NEBRASKA AND SOUTH DAKOTA. SURFACE LOW AT 09Z ANALYZED IN EXTREME NW
IA...WITH COLD FRONT LEAKING EASTWARD THRU KSUX /WHERE TEMPERATURE
DROPPED 16 DEGREES IN 2 HOURS/...AND BOUNDARY AND LOW CLOUDS SEEM TO
BE ADVANCING WITH SUPPORT OF FASTER EDGE OF SOLUTION ENVELOPE.
HAD SOME COMPUTER ISSUES DURING THE EVENING HOURS DID LEAVE MOST
DATASETS INCOMPLETE...SO FILLING IN GRIDS FOR THIS PACKAGE WAS
SOMEWHAT CHALLENGING.

FORECAST CHALLENGE TODAY MAINLY AROUND TEMPERATURE TRENDS...AND THEN
DEALING WITH ADVANCE OF PRECIPITATION BAND FROM WEST WITH MAIN
TROUGH AXIS. GENERALLY DREW FAVOR FROM NAM REPRESENTATION OF THERMAL
PROGS TODAY...AS HAD BEEN AND IS THE QUICKEST WITH SURFACE BOUNDARY
PROGRESSION...BUT HINTS THAT EVEN THIS MAY NOT BE FAST ENOUGH. PUT
IN REALLY SHARP MID TO LATE MORNING TEMPERATURE GRADIENT THROUGH NW
IA AND INTO SW MN...WITH MAINLY LITTLE OVERALL CHANGE AROUND CURRENT
NUMBERS OVER REST OF THE CLOUDY/FOGGY AREA. SMALL WINDOW FOR
SIGNIFICANT MIXING ACROSS EASTERN PORTIONS OF NW IA INTO MID TO LATE
MORNING...THEN FRONTAL PASSAGE WILL SET TEMPERATURES ON SHARP
DOWNWARD PUSH. ADVANCE OF LOWER CLOUDS MAY SLOW A BIT WITH THE
MIXING...WHICH SHOULD HELP TO DECREASE THE IMMEDIATE CROSS FRONTAL
GRADIENT BY THE TIME IT REACHES THE FAR EASTERN AREAS. OTHERWISE...
WILL BE WATCHING THE ADVANCE OF UPPER TROUGH AXIS TODAY. SHOULD END
UP WITH A BROKEN TO SOLID AREA OF PRECIPITATION PROGRESSING EASTWARD
AS PV AND DIV Q ZIP UP ALONG THE TROUGH AXIS AS STRONG JET FROM
ROCKIES LIFTS NEWRD THRU THE AREA TODAY. NOT CRAZY ABOUT THUNDER
MENTION AT ALL WITH A CONSENSUS OF LACK OF EVEN SMALL AMOUNTS OF
ELEVATED INSTABILITY...BUT JUST ENOUGH FORCING AND COLD AIR ALOFT
WITH UPPER WAVE TO MAKE FOR SMALL INCLUSION...AND ALSO ALONG THE
EDGE OF WELL DEFINED STEEP LAPSE RATES DURING THE MORNING HOURS.
PROGRESSION INITIALLY LOOKS TO BE SOMEWHAT SLOWER...BUT ALL MODELS
INDICATE AS WAVE WRAPS UP TO THE NORTHWEST...THAT PRECIPITATION
SHOULD REALLY BEGIN TO SLIDE EASTWARD WITH FRONTAL SCALE COLLAPSE
ALLOWING A SLIGHTLY QUICKER END.

WINDS WILL INCREASE NOTABLY FROM THE NW BEHIND SYSTEM. FOR
NOW...HAVE NOT ISSUED ANY WIND ADVISORIES...AS MIXED LAYER LOOKS TO
REMAIN FAIRLY SHALLOW...AT LEAST ENOUGH THAT ANY WIND SPEEDS OF 35
TO 45 KTS ARE JUST BARELY WITHIN MIXING DEPTHS OF 2000 TO 3000 FT
TODAY AND TONIGHT.

WINDS WILL CONTINUE TO MIX EFFECTIVELY ON MONDAY WITH AN
INCREASINGLY SUNNY DAY...MARRED BY JUST A LITTLE COLD AIR ADVECTIVE
STRATOCUMULUS FIELD THROUGH MIDDAY IN THE EAST.
OTHERWISE...TEMPERATURES START TO MODERATE AGAIN DURING THE DAY
ESPECIALLY WEST...AND WILL ALLOW FOR A SEASONABLE DAY. WINDS
DROPPING MARKEDLY TOWARD EVENING UNDER RIDGE AXIS...AND WITH DRY
AIRMASS WILL SEE QUICK FALL IN READINGS DURING THE EARLY
EVENING...THEN A SLOWER TO STEADY FALL OVERNIGHT.

CONTINUE TO WATCH RETURN OF SW FLOW ALFT FOR LTR TUE THROUGH
THURSDAY WITH FRONTAL BOUNDARY SLIDING IN LATER TUESDAY TO
NORTHWESTERN AREAS...AND FINDING RESIDENCE THROUGH AT LEAST EARLY
THURSDAY IN THE IMMEDIATE VICINITY. MOISTURE RETURN WILL BE SLOW...
BUT BY LATER TUESDAY NIGHT AND ESPECIALLY WED AND THU...EXPECT TO
FIND BETTER FRONTAL BAND...ESPECIALLY AS ONE WEAK WAVE TRAVERSES THE
BOUNDARY ON WED...AND MAIN SYSTEM BEGINS TO SLIDE IN TOWARD THURSDAY.
WHILE MODELS DO NOT INDICATE ENOUGH INSTABILITY TO WARRANT THUNDER
MENTION...THE WARM ADVECTION AHEAD OF THE MAIN WAVE ESPECIALLY BY
LATER WED THROUGH EARLY THU SUGGEST AT LEAST AN ISOLATED THREAT NEAR
THE BOUNDARY FOR ELEVATED CONVECTION. KEPT POPS GENERALLY IN THE
HIGHER CHANCE TO LOWER LIKELY FOR THE ENTIRE FRONTAL EVENT. /CHAPMAN

&&

.AVIATION...
MVFR/IFR CEILINGS AND VISIBILITY WILL CONTINUE TO BLANKET THE BULK
OF THE REGION THROUGH THE NEXT 24 HOURS AS FOG AND STRATUS SETTLES
IN ACROSS THE THE FORECAST AREA IN THE WAKE OF AN EXITING LOW
PRESSURE SYSTEM. NORTHWEST WINDS WILL INCREASE AFTER 15Z WITH
SUSTAINED WINDS AROUND 20KT WITH GUSTS AROUND 30 KT POSSIBLE THIS
AFTERNOON AND EVENING.  NOT MUCH RELIEF IS EXPECTED OVERNIGHT WITH
WINDS REMAINING IN THE 15 TO 30KT RANGE AFTER MIDNIGHT. THE HIGHEST
GUSTS TODAY AND TONIGHT WILL BE IN THE FAVORED AREAS OF THE MISSOURI
RIVER VALLEY AND SOUTHWEST MINNESOTA.  RAIN SHOWERS WILL SLOWLY MOVE
WEST TO EAST ACROSS THE FORECAST AREA THROUGH TONIGHT.

&&

.FSD WATCHES/WARNINGS/ADVISORIES...
SD...NONE.
MN...NONE.
IA...NONE.
NE...NONE.

Hazardous weather outlook, Apr 10, 5:59 AM CDT, 4 hours 43 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SIOUX FALLS SD
559 AM CDT SUN APR 10 2011

SDZ038>040-050-052>071-MNZ071-072-080-081-089-090-097-098-
IAZ001>003-012>014-020>022-031-032-NEZ013-014-111200-
AURORA-BEADLE-BON HOMME-BROOKINGS-BRULE-BUENA VISTA IA-
CHARLES MIX-CHEROKEE IA-CLAY-CLAY IA-COTTONWOOD MN-DAKOTA NE-
DAVISON-DICKINSON IA-DIXON NE-DOUGLAS-GREGORY-HANSON-HUTCHINSON-
IDA IA-JACKSON MN-JERAULD-KINGSBURY-LAKE-LINCOLN-LINCOLN MN-
LYON IA-LYON MN-MCCOOK-MINER-MINNEHAHA-MOODY-MURRAY MN-NOBLES MN-
OBRIEN IA-OSCEOLA IA-PIPESTONE MN-PLYMOUTH IA-ROCK MN-SANBORN-
SIOUX IA-TURNER-UNION-WOODBURY IA-YANKTON-
559 AM CDT SUN APR 10 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST SOUTH DAKOTA...
SOUTHWEST MINNESOTA...NORTHWEST IOWA...AND NORTHEAST NEBRASKA.

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS...
AN ISOLATED THUNDERSTORM WILL BE POSSIBLE TODAY...MAINLY IN THE
LATER MORNING AND AFTERNOON HOURS. STORMS WILL NOT BE SEVERE.

FLOODING...
FLOODING WILL CONTINUE OVER MUCH OF THE BIG SIOUX AND JAMES
RIVERS FOR THE FORESEEABLE FUTURE. BY THE MIDDLE OF THE
WEEK...THE DES MOINES RIVER IS EXPECTED TO DROP BELOW FLOOD STAGE
AT WINDOM AND JACKSON.

WIND AND FOG...
AREAS OF DENSE FOG ARE EXPECTED TO LINGER INTO THE EARLY MORNING
HOURS FROM THE BUFFALO RIDGE THROUGH THE LOWER BIG SIOUX VALLEY.
VISIBILITIES WILL DROP TO A QUARTER MILE AT TIMES.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.

&&

FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT
WWW.WEATHER.GOV/SIOUXFALLS. THIS INCLUDES THE GRAPHICAL HAZARDOUS
WEATHER OUTLOOK.

In the hours before

Local storm report, Apr 10, 7:36 AM CDT, 3 hours 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
736 AM CDT SUN APR 10 2011

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

1015 PM     HAIL             1 SE CHEROKEE           42.74N 95.54W
04/09/2011  E2.75 INCH       CHEROKEE           IA   BROADCAST MEDIA

            GOLFBALL TO BASEBALL SIZE HAIL

&&

JCHAPMAN

Local storm report, Apr 10, 7:44 AM CDT, 2 hours 58 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
744 AM CDT SUN APR 10 2011

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

0940 PM     NON-TSTM WND DMG 2 S EVERLY              43.13N 95.32W
04/09/2011                   CLAY               IA   BROADCAST MEDIA

            FARM BUILDING DAMAGED. METAL BLOWN OFF.

&&

JCHAPMAN

Local storm report, Apr 10, 7:51 AM CDT, 2 hours 51 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
751 AM CDT SUN APR 10 2011

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

1004 PM     NON-TSTM WND GST 4 W SPIRIT LAKE         43.43N 95.18W
04/09/2011  M64 MPH          DICKINSON          IA   TRAINED SPOTTER

&&

JCHAPMAN

Local storm report, Apr 10, 9:24 AM CDT, 1 hour 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
924 AM CDT SUN APR 10 2011

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

1015 PM     HAIL             CHEROKEE                42.75N 95.55W
04/09/2011  E4.00 INCH       CHEROKEE           IA   CO-OP OBSERVER

            3.5 INCH HAIL MEASURED

&&

JM

Local storm report, Apr 10, 9:50 AM CDT, 52 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE SIOUX FALLS SD
950 AM CDT SUN APR 10 2011

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

0746 AM     HAIL             FLANDREAU               44.05N 96.60W
04/09/2011  E0.50 INCH       MOODY              SD   LAW ENFORCEMENT

0746 AM     HAIL             FLANDREAU               44.05N 96.60W
04/09/2011  E0.50 INCH       MOODY              SD   LAW ENFORCEMENT

            FALLING IN THE CITY

0803 AM     HAIL             3 NW PIPESTONE          44.03N 96.35W
04/09/2011  E1.00 INCH       PIPESTONE          MN   TRAINED SPOTTER

            ABOUT FIVE MINUTES DURATION

0845 AM     HAIL             1 W CURRENT LAKE        44.14N 95.97W
04/09/2011  E1.25 INCH       MURRAY             MN   PUBLIC

            QUARTER TO HALF DOLLAR...THIS IS CORRECTED REPORT

0845 AM     HAIL             2 SSW CURRENT LAKE      44.11N 95.95W
04/09/2011  E1.00 INCH       MURRAY             MN   PUBLIC

0920 AM     HAIL             6 NNE DOVRAY            44.14N 95.52W
04/09/2011  E1.00 INCH       MURRAY             MN   PUBLIC

            DIME TO QUARTER SIZE...COVERING THE GROUND

0640 PM     HAIL             SALIX                   42.31N 96.29W
04/09/2011  E1.00 INCH       WOODBURY           IA   LAW ENFORCEMENT

            AT THE JUNCTION OF 290TH AVE AND K45

0640 PM     HAIL             SLOAN                   42.23N 96.22W
04/09/2011  E0.75 INCH       WOODBURY           IA   LAW ENFORCEMENT

0646 PM     HAIL             SALIX                   42.31N 96.29W
04/09/2011  E1.00 INCH       WOODBURY           IA   TRAINED SPOTTER

0649 PM     HAIL             SALIX                   42.31N 96.29W
04/09/2011  E1.00 INCH       WOODBURY           IA   LAW ENFORCEMENT

            MARBLE TO QUARTER SIZE HAIL

0650 PM     HAIL             1 NW DANTE              43.05N 98.20W
04/09/2011  E1.00 INCH       CHARLES MIX        SD   TRAINED SPOTTER

0700 PM     HAIL             SMITHLAND               42.23N 95.93W
04/09/2011  E1.25 INCH       WOODBURY           IA   TRAINED SPOTTER

0729 PM     HAIL             2 W BATTLE CREEK        42.32N 95.64W
04/09/2011  M1.00 INCH       IDA                IA   EMERGENCY MNGR

            PEA TO QUARTER SIZE

0733 PM     HAIL             3 W BATTLE CREEK        42.32N 95.66W
04/09/2011  M1.50 INCH       IDA                IA   EMERGENCY MNGR

0750 PM     HAIL             WAKONDA                 43.01N 97.11W
04/09/2011  E1.00 INCH       CLAY               SD   EMERGENCY MNGR

0757 PM     HAIL             IDA GROVE               42.34N 95.47W
04/09/2011  E1.50 INCH       IDA                IA   LAW ENFORCEMENT

0820 PM     TORNADO          6 SW ARTHUR             42.27N 95.41W
04/09/2011                   IDA                IA   STORM CHASER

            STOVE PIPE SHAPED TORNADO REPORTED BY STORM CHASER

0844 PM     HAIL             3 S SALEM               43.68N 97.39W
04/09/2011  E1.00 INCH       MCCOOK             SD   EMERGENCY MNGR

0845 PM     HAIL             2 S GALVA               42.48N 95.42W
04/09/2011  E1.00 INCH       IDA                IA   TRAINED SPOTTER

0846 PM     HAIL             3 S SALEM               43.68N 97.39W
04/09/2011  E1.50 INCH       MCCOOK             SD   EMERGENCY MNGR

0900 PM     TSTM WND GST     2 NNE WALL LAKE         43.56N 96.93W
04/09/2011  E60.00 MPH       MINNEHAHA          SD   LAW ENFORCEMENT

            BARN DESTROYED AND SOME TREE DAMAGE.

0903 PM     HAIL             PIPESTONE               44.00N 96.31W
04/09/2011  E1.00 INCH       PIPESTONE          MN   PUBLIC

0903 PM     HAIL             PIPESTONE               44.00N 96.31W
04/09/2011  E1.00 INCH       PIPESTONE          MN   TRAINED SPOTTER

0924 PM     HAIL             RUSSELL                 44.32N 95.95W
04/09/2011  E0.88 INCH       LYON               MN   TRAINED SPOTTER

0927 PM     HAIL             RUSSELL                 44.32N 95.95W
04/09/2011  E1.50 INCH       LYON               MN   TRAINED SPOTTER

0940 PM     NON-TSTM WND DMG 2 S EVERLY              43.13N 95.32W
04/09/2011                   CLAY               IA   BROADCAST MEDIA

            FARM BUILDING DAMAGED. METAL BLOWN OFF.

0946 PM     TORNADO          7 W STORM LAKE          42.64N 95.34W
04/09/2011                   BUENA VISTA        IA   STORM CHASER

            TWO TORNADOES REPORTED BY CHASERS 7W OF STORM LAKE
            RELAYED BY MEDIA

1004 PM     HAIL             TRUESDALE               42.73N 95.18W
04/09/2011  E1.75 INCH       BUENA VISTA        IA   BROADCAST MEDIA

1004 PM     NON-TSTM WND GST 4 W SPIRIT LAKE         43.43N 95.18W
04/09/2011  M64.00 MPH       DICKINSON          IA   TRAINED SPOTTER

1007 PM     HAIL             MERRILL                 42.72N 96.25W
04/09/2011  E0.88 INCH       PLYMOUTH           IA   FIRE DEPT/RESCUE

            DIME TO NICKLE

1008 PM     HAIL             4 SW LE MARS            42.74N 96.23W
04/09/2011  E2.75 INCH       PLYMOUTH           IA   BROADCAST MEDIA

            GOLFBALL TO BASEBALL SIZE HAIL NORTH OF MERRILL.

1013 PM     HAIL             LE MARS                 42.79N 96.17W
04/09/2011  E2.00 INCH       PLYMOUTH           IA   BROADCAST MEDIA

1015 PM     HAIL             CHEROKEE                42.75N 95.55W
04/09/2011  E4.00 INCH       CHEROKEE           IA   CO-OP OBSERVER

            3.5 INCH HAIL MEASURED

1015 PM     HAIL             1 SE CHEROKEE           42.74N 95.54W
04/09/2011  E2.75 INCH       CHEROKEE           IA   BROADCAST MEDIA

            GOLFBALL TO BASEBALL SIZE HAIL

1054 PM     HAIL             SIOUX RAPIDS            42.89N 95.15W
04/09/2011  E1.75 INCH       BUENA VISTA        IA   TRAINED SPOTTER

            PEA TO GOLF BALL SIZE HAIL

1104 PM     HAIL             LINN GROVE              42.89N 95.24W
04/09/2011  E1.50 INCH       BUENA VISTA        IA   BROADCAST MEDIA

1131 PM     HAIL             3 SSW GREENVILLE        42.97N 95.17W
04/09/2011  E1.00 INCH       CLAY               IA   TRAINED SPOTTER

            COVERING APPROXIMATELY HALF OF THE GROUND

1225 AM     HAIL             4 ESE BRONSON           42.39N 96.14W
04/10/2011  E1.00 INCH       WOODBURY           IA   TRAINED SPOTTER

&&

MFUHS

Special weather statement, Apr 10, 10:38 AM CDT, 4 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1038 AM CDT SUN APR 10 2011

IAZ001>003-012>014-020>022-031-032-MNZ071-072-080-081-089-090-097-
098-101745-
LYON-OSCEOLA-DICKINSON-SIOUX-OBRIEN-CLAY-PLYMOUTH-CHEROKEE-
BUENA VISTA-WOODBURY-IDA-LINCOLN-MURRAY-COTTONWOOD-NOBLES-JACKSON-
PIPESTONE-ROCK-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...SIBLEY...SPIRIT LAKE...MILFORD...ARNOLDS PARK...
ORANGE CITY...SIOUX CENTER...SHELDON...HARTLEY...SANBORN...
SPENCER...LE MARS...CHEROKEE...STORM LAKE...SIOUX CITY...
IDA GROVE...HOLSTEIN...BATTLE CREEK...TYLER...HENDRICKS...
LAKE BENTON...IVANHOE...MARSHALL...SLAYTON...FULDA...WINDOM...
MOUNTAIN LAKE...WORTHINGTON...JACKSON...LAKEFIELD...PIPESTONE...
LUVERNE
1038 AM CDT SUN APR 10 2011

...SPECIAL WEATHER STATEMENT...

BE AWARE THAT WIDESPREAD FOG WITH AREAS OF DENSE FOG HAS DEVELOPED
ACROSS MUCH OF NORTHWEST IOWA AND SOUTHWEST MINNESOTA.
VISIBILITIES IN SOME AREAS HAS DROPPED TO LESS THAN A QUARTER
MILE. AS THE WIND CONTINUES TO SHIFT TO THE WEST AND INCREASE IN
SPEED...THE VISIBILITIES SHOULD IMPROVE BY EARLY AFTERNOON.
UPSTREAM IN SOUTH DAKOTA...VISIBILITIES ARE AT 4 MILES OR GREATER
AND THAT TYPE OF AIR MASS IS MOVING INTO AREAS EAST OF I 29. LOW
CLOUDS WILL HANG TOUGH THOUGH FOR THE REST OF THE DAY.

MJF

The office that day

Everything else NWS Sioux Falls, SD issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 9, 8:55 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln, Lyon, Murray, Pipestone	50 min
Apr 9, 9:17 PM CDT	Severe Thunderstorm Warning	FSD	Pipestone, Rock	43 min
Apr 9, 9:45 PM CDT	Severe Thunderstorm Warning	FSD	Lyon	30 min
Apr 9, 9:54 PM CDT	Severe Thunderstorm Warning	FSD	Murray, Nobles, Pipestone, Rock	51 min
Apr 9, 11:16 PM CDT	Severe Thunderstorm Warning	FSD	Jackson, Nobles	21 min
Apr 10, 3:12 AM CDT	River Flood Warning	FSD	Lyon	55 hr

Nearby

River Flood Warnings in Minnesota, 2011 Every river flood warning in 2011

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.