Alert archive / South Dakota / River Flood Warnings in 2011

River Flood Warning 82, NWS Sioux Falls, SD

May 30, 2011Minnehaha County, South Dakota

NWS Sioux Falls, SD issued this river flood warning at May 30, 2011, 9:28 AM CDT for Minnehaha County, South Dakota. It took effect at Jun 5, 2011, 7:00 AM CDT. It was in force for .

The area

The counties it named.

The facts

Issued: May 30, 2011, 9:28 AM CDT (14:28 UTC)
In effect from: Jun 5, 2011, 7:00 AM CDT
Expired: Jun 2, 2011, 8:17 AM CDT
In force
Issued by: NWS Sioux Falls, SD
Flood severity: Minor

County Minnehaha County, SD

The radar

The Sioux Falls radar (KFSD), 11 km from the middle of the area, began a volume at 14:28 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 Big Sioux River at Sioux Falls I-90 (SFLS2).

Action stage: 11 ft
Minor stage: 12 ft
Moderate stage: 15 ft
Major stage: 17 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record, 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.

683 
WGUS43 KFSD 301428
FLWFSD
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
928 AM CDT MON MAY 30 2011

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

  BIG SIOUX RIVER AT SIOUX FALLS 60TH STREET 
   
.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. 

&&

SDC099-311828-
/O.NEW.KFSD.FL.W.0082.110601T0900Z-000000T0000Z/
/SFLS2.1.ER.110601T0900Z.110605T0600Z.000000T0000Z.NO/
928 AM CDT MON MAY 30 2011

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A 

* FLOOD WARNING FOR 
  THE BIG SIOUX RIVER AT SIOUX FALLS 60TH STREET.
* FROM LATE TUESDAY NIGHT UNTIL FURTHER NOTICE.
* AT 08AM MONDAY THE STAGE WAS 11.4 FEET.
* MINOR FLOODING IS FORECAST.
* FLOOD STAGE IS 12.0 FEET.
* FORECAST...RISE ABOVE FLOOD STAGE BY 4 AM WEDNESDAY AND CREST NEAR 
  12.7 FEET BY SUNDAY JUNE 05.
* AT STAGES NEAR 12.0 FEET...CROP AND PASTURE LAND UPSTREAM OF SIOUX 
  FALLS BEGINS TO FLOOD. 

$$

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

BIG SIOUX RIVER
SFLS2    12.0   11.35 MON 8 AM   12.7  SUN 1 AM   

MG

4 follow-up statements

102 
WGUS83 KFSD 301442
FLSFSD
FLOOD STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
942 AM CDT MON MAY 30 2011

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

  LITTLE SIOUX RIVER AT SPENCER 

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

  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 HAWARDEN
  BIG SIOUX RIVER AT AKRON 
  LITTLE SIOUX RIVER AT LINN GROVE 
   
.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. 

&&

SDC005-311842-
/O.CON.KFSD.FL.W.0015.000000T0000Z-000000T0000Z/
/HURS2.3.SM.110320T1215Z.110326T0915Z.000000T0000Z.NO/
942 AM CDT MON MAY 30 2011

THE FLOOD WARNING CONTINUES FOR
  THE JAMES RIVER AT HURON.
* UNTIL FURTHER NOTICE.
* AT 09AM MONDAY THE STAGE WAS 15.1 FEET.
* FLOOD STAGE IS 11.0 FEET.
* FORECAST...THE RIVER WILL CREST NEAR 15.7 FEET BY THURSDAY JUNE 02 
  THEN BEGIN FALLING.
* AT STAGES NEAR 15.5 FEET...THE FILTER HOUSE OF THE CITY SWIMMING 
  POOL FLOODS. 

$$

SDC111-311841-
/O.CON.KFSD.FL.W.0016.000000T0000Z-000000T0000Z/
/FORS2.3.SM.110319T1444Z.110325T2015Z.000000T0000Z.NR/
942 AM CDT MON MAY 30 2011

THE FLOOD WARNING CONTINUES FOR
  THE JAMES RIVER NEAR FORESTBURG.
* UNTIL FURTHER NOTICE.
* AT 09AM MONDAY THE STAGE WAS 15.2 FEET.
* FLOOD STAGE IS 12.0 FEET.
* FORECAST...THE RIVER WILL CREST NEAR 15.4 FEET BY FRIDAY JUNE 03 
  THEN BEGIN FALLING.
* AT STAGES NEAR 15.0 FEET...MANY OF THE COUNTY ROADS IN THE AREA ARE
  IMPASSABLE...AND SOME ROADS ARE UNDER WATER FOR AS MUCH AS 1/2
  MILE. 

$$

SDC035-061-311841-
/O.CON.KFSD.FL.W.0017.000000T0000Z-000000T0000Z/
/JRMS2.3.SM.110317T0025Z.110328T0415Z.000000T0000Z.NR/
942 AM CDT MON MAY 30 2011

THE FLOOD WARNING CONTINUES FOR
  THE JAMES RIVER AT MITCHELL.
* UNTIL FURTHER NOTICE.
* AT 08AM MONDAY THE STAGE WAS 21.1 FEET.
* FLOOD STAGE IS 17.0 FEET.
* FORECAST...THE RIVER WILL CREST NEAR 21.4 FEET BY SUNDAY JUNE 05 
  THEN BEGIN FALLING.
* AT STAGES NEAR 21.5 FEET...SHANNARD ROAD IS FLOODED. 

$$

SDC067-135-311841-
/O.CON.KFSD.FL.W.0018.000000T0000Z-000000T0000Z/
/SCOS2.3.SM.000000T0000Z.110328T0815Z.000000T0000Z.NR/
942 AM CDT MON MAY 30 2011

THE FLOOD WARNING CONTINUES FOR
  THE JAMES RIVER NEAR SCOTLAND.
* UNTIL FURTHER NOTICE.
* AT 09AM MONDAY THE STAGE WAS 15.8 FEET.
* FLOOD STAGE IS 13.0 FEET.
* FORECAST...THE RIVER WILL CREST NEAR 16.2 FEET BY FRIDAY JUNE 03 
  THEN BEGIN FALLING.
* AT STAGES NEAR 16.0 FEET...APPROXIMATELY 22850 ACRES OF FARM LAND 
  ARE FLOODED BETWEEN MITCHELL AND YANKTON. 

$$

SDC135-311841-
/O.CON.KFSD.FL.W.0019.000000T0000Z-000000T0000Z/
/YNNS2.3.SM.110321T1445Z.110420T1501Z.000000T0000Z.NO/
942 AM CDT MON MAY 30 2011

THE FLOOD WARNING CONTINUES FOR
  THE JAMES RIVER ABOVE YANKTON.
* UNTIL FURTHER NOTICE.
* AT 09AM MONDAY THE STAGE WAS 15.4 FEET.
* FLOOD STAGE IS 12.0 FEET.
* FORECAST...THE RIVER WILL CREST NEAR 15.7 FEET BY SUNDAY JUNE 05 
  THEN BEGIN FALLING.
* AT STAGES NEAR 16.0 FEET...SW JIM RIVER ROAD NEAR 301ST STREET 
  FLOODS. 

$$

SDC011-311841-
/O.CON.KFSD.FL.W.0044.000000T0000Z-000000T0000Z/
/BRCS2.3.ER.110320T0515Z.110328T1430Z.000000T0000Z.NR/
942 AM CDT MON MAY 30 2011

THE FLOOD WARNING CONTINUES FOR
  THE BIG SIOUX RIVER NEAR BRUCE.
* UNTIL FURTHER NOTICE.
* AT 08AM MONDAY THE STAGE WAS 9.4 FEET.
* FLOOD STAGE IS 8.0 FEET.
* AT STAGES NEAR 9.5 FEET...THE RIGHT BANK OVERFLOWS FLOODING 
  AGRICULTURAL LANDS FOR AS MUCH AS 1/4 MILE. 

$$

SDC011-101-311841-
/O.CON.KFSD.FL.W.0020.000000T0000Z-000000T0000Z/
/BRKS2.3.ER.110319T1930Z.110325T0146Z.000000T0000Z.NO/
942 AM CDT MON MAY 30 2011

THE FLOOD WARNING CONTINUES FOR
  THE BIG SIOUX RIVER NEAR BROOKINGS.
* UNTIL FURTHER NOTICE.
* AT 08AM MONDAY THE STAGE WAS 10.0 FEET.
* FLOOD STAGE IS 9.0 FEET.
* FORECAST...THE RIVER WILL CREST NEAR 11.7 FEET BY FRIDAY JUNE 03 
  THEN BEGIN FALLING.
* AT STAGES NEAR 11.7 FEET...473RD AVENUE SOUTH OF THE GAGE BEGINS TO
  FLOOD. 

$$

SDC099-101-311841-
/O.EXT.KFSD.FL.W.0081.110601T0600Z-000000T0000Z/
/DERS2.1.ER.110601T0600Z.110604T1200Z.000000T0000Z.NO/
942 AM CDT MON MAY 30 2011

THE FLOOD WARNING CONTINUES FOR
  THE BIG SIOUX RIVER NEAR DELL RAPIDS.
* FROM LATE TUESDAY NIGHT UNTIL FURTHER NOTICE.
* AT 09AM MONDAY THE STAGE WAS 11.4 FEET.
* FLOOD STAGE IS 12.0 FEET.
* FORECAST...RISE ABOVE FLOOD STAGE BY 1 AM WEDNESDAY AND CREST NEAR 
  13.2 FEET BY SUNDAY JUNE 05.
* AT STAGES NEAR 14.0 FEET...SIGNIFICANT AMOUNTS OF AGRICULTURAL 
  LANDS ARE FLOODED THROUGH THE BASIN. 

$$

SDC099-311841-
/O.CON.KFSD.FL.W.0082.110601T0900Z-000000T0000Z/
/SFLS2.1.ER.110601T0900Z.110605T0600Z.000000T0000Z.NO/
942 AM CDT MON MAY 30 2011

THE FLOOD WARNING CONTINUES FOR
  THE BIG SIOUX RIVER AT SIOUX FALLS 60TH STREET.
* FROM LATE TUESDAY NIGHT UNTIL FURTHER NOTICE.
* AT 09AM MONDAY THE STAGE WAS 11.4 FEET.
* FLOOD STAGE IS 12.0 FEET.
* FORECAST...RISE ABOVE FLOOD STAGE BY 4 AM WEDNESDAY AND CREST NEAR 
  12.7 FEET BY SUNDAY JUNE 05.
* AT STAGES NEAR 12.0 FEET...CROP AND PASTURE LAND UPSTREAM OF SIOUX 
  FALLS BEGINS TO FLOOD. 

$$

IAC167-SDC083-127-311841-
/O.CON.KFSD.FL.W.0072.000000T0000Z-000000T0000Z/
/HAWI4.1.ER.110522T1500Z.110525T1200Z.000000T0000Z.NO/
942 AM CDT MON MAY 30 2011

THE FLOOD WARNING CONTINUES FOR
  THE BIG SIOUX RIVER AT HAWARDEN.
* UNTIL FURTHER NOTICE.
* AT 07AM MONDAY THE STAGE WAS 16.4 (ESTIMATED) FEET.
* FLOOD STAGE IS 15.0 FEET.
* FORECAST...THE RIVER WILL CREST NEAR 16.7 FEET BY SATURDAY JUNE 04 
  THEN BEGIN FALLING.

$$

IAC149-SDC127-311841-
/O.EXT.KFSD.FL.W.0073.000000T0000Z-000000T0000Z/
/AKRI4.1.ER.000000T0000Z.110525T2030Z.000000T0000Z.NO/
942 AM CDT MON MAY 30 2011

THE FLOOD WARNING CONTINUES FOR
  THE BIG SIOUX RIVER AT AKRON.
* UNTIL FURTHER NOTICE.
* AT 09AM MONDAY THE STAGE WAS 17.0 FEET.
* FLOOD STAGE IS 16.0 FEET.
* FORECAST...THE RIVER WILL CREST NEAR 17.1 FEET BY SATURDAY JUNE 04 
  THEN BEGIN FALLING.
* AT STAGES NEAR 17.0 FEET...ABOUT 6500 ACRES OF FARM LAND ARE 
  FLOODED. 

$$

IAC041-301512-
/O.CAN.KFSD.FL.W.0074.000000T0000Z-110531T0600Z/
/SPWI4.1.ER.000000T0000Z.110526T1930Z.000000T0000Z.NO/
942 AM CDT MON MAY 30 2011

THE FLOOD WARNING IS CANCELLED FOR
  THE LITTLE SIOUX RIVER AT SPENCER.
* AT 7 AM MONDAY THE STAGE WAS ESTIMATED AT 9.8 FEET.
* FLOOD STAGE IS 10.0 FEET.
* AT STAGES NEAR 9.5 FEET...THE LOWER LEFT BANK OVERFLOWS AND VERY 
  MINOR FLOODING OF LOW LANDS BEGINS. 

$$

IAC021-041-311841-
/O.EXT.KFSD.FL.W.0075.000000T0000Z-110604T1200Z/
/LNNI4.1.ER.110523T0501Z.110528T1000Z.110603T1200Z.NO/
942 AM CDT MON MAY 30 2011

...FLOOD WARNING EXTENDED UNTIL 7 AM SATURDAY... 
THE FLOOD WARNING CONTINUES FOR
  THE LITTLE SIOUX RIVER AT LINN GROVE.
* UNTIL SATURDAY MORNING.
* AT 09AM MONDAY THE STAGE WAS 18.9 FEET.
* FLOOD STAGE IS 18.0 FEET.
* FORECAST...THE RIVER WILL CONTINUE TO FALL TO BELOW FLOOD STAGE BY 
  FRIDAY JUNE 03.
* AT STAGES NEAR 18.5 FEET...THE CITY PARK IN SIOUX RAPIDS IS 
  FLOODED. 

$$

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

JAMES RIVER
HURS2    11.0   15.12 MON 9 AM    15.7  THU 1 AM    15.9  FRI MAY 20
FORS2    12.0   15.17 MON 9 AM    15.4  THU 1 PM    15.6  FRI MAY 20
JRMS2    17.0   21.15 MON 9 AM    21.4  THU 7 PM    21.5  MON MAY 23
SCOS2    13.0   15.80 MON 9 AM    16.2  FRI 1 AM    16.2  FRI MAY 20
YNNS2    12.0   15.40 MON 9 AM    15.7  SUN 7 AM    16.2  FRI MAY 20

BIG SIOUX RIVER
BRCS2     8.0    9.42 MON 9 AM                       9.5  MON MAY 30
BRKS2     9.0   10.03 MON 9 AM    11.7  FRI 7 AM 
DERS2    12.0   11.38 MON 9 AM    13.2  SAT 7 AM 
SFLS2    12.0   11.36 MON 9 AM    12.7  SUN 1 AM 
HAWI4    15.0  E16.40 MON 7 AM    16.7  FRI 7 PM    17.2  WED MAY 25
AKRI4    16.0   17.00 MON 9 AM    17.1  SAT 7 PM    17.7  WED MAY 25

LITTLE SIOUX RIVER
SPWI4    10.0   E9.80 MON 7 AM                      11.3  THU MAY 26
LNNI4    18.0   18.90 MON 9 AM                      19.2  SUN MAY 29

MG

729 
WGUS83 KFSD 311459
FLSFSD
FLOOD STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
959 AM CDT TUE MAY 31 2011

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

  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 HAWARDEN
  BIG SIOUX RIVER AT AKRON
  LITTLE SIOUX RIVER AT LINN GROVE 
   
.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. 

&&

SDC011-011859-
/O.CON.KFSD.FL.W.0044.000000T0000Z-000000T0000Z/
/BRCS2.3.ER.110320T0515Z.110328T1430Z.000000T0000Z.NR/
959 AM CDT TUE MAY 31 2011

THE FLOOD WARNING CONTINUES FOR
  THE BIG SIOUX RIVER NEAR BRUCE.
* UNTIL FURTHER NOTICE.
* AT 09AM TUESDAY THE STAGE WAS 9.5 FEET.
* FLOOD STAGE IS 8.0 FEET.
* AT STAGES NEAR 9.5 FEET...THE RIGHT BANK OVERFLOWS FLOODING 
  AGRICULTURAL LANDS FOR AS MUCH AS 1/4 MILE. 

$$

SDC011-101-011858-
/O.CON.KFSD.FL.W.0020.000000T0000Z-000000T0000Z/
/BRKS2.3.ER.110319T1930Z.110325T0146Z.000000T0000Z.NO/
959 AM CDT TUE MAY 31 2011

THE FLOOD WARNING CONTINUES FOR
  THE BIG SIOUX RIVER NEAR BROOKINGS.
* UNTIL FURTHER NOTICE.
* AT 09AM TUESDAY THE STAGE WAS 10.1 FEET.
* FLOOD STAGE IS 9.0 FEET.
* FORECAST...THE RIVER WILL CREST NEAR 11.5 FEET BY FRIDAY JUNE 03 
  THEN BEGIN FALLING.
* AT STAGES NEAR 11.7 FEET...473RD AVENUE SOUTH OF THE GAGE BEGINS TO
  FLOOD. 

$$

SDC099-101-011858-
/O.EXT.KFSD.FL.W.0081.110601T1800Z-000000T0000Z/
/DERS2.1.ER.110601T1800Z.110605T0600Z.000000T0000Z.NO/
959 AM CDT TUE MAY 31 2011

THE FLOOD WARNING CONTINUES FOR
  THE BIG SIOUX RIVER NEAR DELL RAPIDS.
* FROM WEDNESDAY AFTERNOON UNTIL FURTHER NOTICE.
* AT 09AM TUESDAY THE STAGE WAS 11.5 FEET.
* FLOOD STAGE IS 12.0 FEET.
* FORECAST...RISE ABOVE FLOOD STAGE BY 1 PM WEDNESDAY AND CREST NEAR 
  12.6 FEET BY SUNDAY JUNE 05.
* AT STAGES NEAR 12.0 FEET...AGRICULTURAL LANDS ALONG THE LOWER BANKS
  OF THE RIVER BEGIN TO FLOOD. 

$$

SDC099-011858-
/O.EXT.KFSD.FL.W.0082.110604T0000Z-000000T0000Z/
/SFLS2.1.ER.110604T0000Z.110605T0600Z.000000T0000Z.NO/
959 AM CDT TUE MAY 31 2011

THE FLOOD WARNING CONTINUES FOR
  THE BIG SIOUX RIVER AT SIOUX FALLS 60TH STREET.
* FROM FRIDAY EVENING UNTIL FURTHER NOTICE.
* AT 09AM TUESDAY THE STAGE WAS 11.4 FEET.
* FLOOD STAGE IS 12.0 FEET.
* FORECAST...RISE ABOVE FLOOD STAGE BY 7 PM FRIDAY AND CREST NEAR 
  12.2 FEET BY SUNDAY JUNE 05.
* AT STAGES NEAR 12.0 FEET...CROP AND PASTURE LAND UPSTREAM OF SIOUX 
  FALLS BEGINS TO FLOOD. 

$$

IAC167-SDC083-127-011858-
/O.CON.KFSD.FL.W.0072.000000T0000Z-000000T0000Z/
/HAWI4.1.ER.110522T1500Z.110603T0600Z.000000T0000Z.NO/
959 AM CDT TUE MAY 31 2011

THE FLOOD WARNING CONTINUES FOR
  THE BIG SIOUX RIVER AT HAWARDEN.
* UNTIL FURTHER NOTICE.
* AT 07AM TUESDAY THE STAGE WAS 16.0 (ESTIMATED) FEET.
* FLOOD STAGE IS 15.0 FEET.
* FORECAST...THE RIVER WILL CREST NEAR 17.4 FEET BY FRIDAY JUNE 03 
  THEN BEGIN FALLING.

$$

IAC149-SDC127-011858-
/O.CON.KFSD.FL.W.0073.000000T0000Z-000000T0000Z/
/AKRI4.1.ER.000000T0000Z.110604T0600Z.000000T0000Z.NO/
959 AM CDT TUE MAY 31 2011

THE FLOOD WARNING CONTINUES FOR
  THE BIG SIOUX RIVER AT AKRON.
* UNTIL FURTHER NOTICE.
* AT 09AM TUESDAY THE STAGE WAS 16.8 FEET.
* FLOOD STAGE IS 16.0 FEET.
* FORECAST...THE RIVER WILL CREST NEAR 17.9 FEET BY SATURDAY JUNE 04 
  THEN BEGIN FALLING.
* AT STAGES NEAR 17.0 FEET...ABOUT 6500 ACRES OF FARM LAND ARE 
  FLOODED. 

$$

IAC021-041-011858-
/O.EXT.KFSD.FL.W.0075.000000T0000Z-000000T0000Z/
/LNNI4.1.ER.110523T0501Z.110528T1000Z.000000T0000Z.NO/
959 AM CDT TUE MAY 31 2011

THE FLOOD WARNING CONTINUES FOR
  THE LITTLE SIOUX RIVER AT LINN GROVE.
* UNTIL FURTHER NOTICE.
* AT 09AM TUESDAY THE STAGE WAS 18.7 FEET.
* FLOOD STAGE IS 18.0 FEET.
* FORECAST...THE RIVER WILL CONTINUE TO FALL TO A STAGE OF 18.5 FEET 
  BY 7 AM WEDNESDAY.
* AT STAGES NEAR 18.5 FEET...THE CITY PARK IN SIOUX RAPIDS IS 
  FLOODED. 

$$

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

BIG SIOUX RIVER
BRCS2     8.0    9.47 TUE 10 AM                      9.5  TUE MAY 31
BRKS2     9.0   10.11 TUE 10 AM   11.5  FRI 1 PM    10.4  WED MAY 25
DERS2    12.0   11.48 TUE 9 AM    12.6  SUN 1 AM    12.4  WED MAY 25
SFLS2    12.0   11.35 TUE 9 AM    12.2  SUN 1 AM    12.0  THU MAY 26
HAWI4    15.0  E16.00 TUE 7 AM    17.4  FRI 1 AM    17.2  WED MAY 25
AKRI4    16.0   16.83 TUE 9 AM    17.9  SAT 1 AM    17.7  WED MAY 25

LITTLE SIOUX RIVER
LNNI4    18.0   18.73 TUE 9 AM                      19.1  SUN MAY 29

MG

610 
WGUS83 KFSD 011431
FLSFSD
FLOOD STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
931 AM CDT WED JUN 1 2011

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

  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 HAWARDEN
  BIG SIOUX RIVER AT AKRON
  LITTLE SIOUX RIVER AT LINN GROVE
   
.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. 

&&

SDC011-021831-
/O.CON.KFSD.FL.W.0044.000000T0000Z-000000T0000Z/
/BRCS2.3.ER.110320T0515Z.110328T1430Z.000000T0000Z.NR/
931 AM CDT WED JUN 1 2011

THE FLOOD WARNING CONTINUES FOR
  THE BIG SIOUX RIVER NEAR BRUCE.
* UNTIL FURTHER NOTICE.
* AT 08AM WEDNESDAY THE STAGE WAS 9.5 FEET.
* FLOOD STAGE IS 8.0 FEET.
* AT STAGES NEAR 9.5 FEET...THE RIGHT BANK OVERFLOWS FLOODING 
  AGRICULTURAL LANDS FOR AS MUCH AS 1/4 MILE. 

$$

SDC011-101-021830-
/O.CON.KFSD.FL.W.0020.000000T0000Z-000000T0000Z/
/BRKS2.3.ER.110319T1930Z.110325T0146Z.000000T0000Z.NO/
931 AM CDT WED JUN 1 2011

THE FLOOD WARNING CONTINUES FOR
  THE BIG SIOUX RIVER NEAR BROOKINGS.
* UNTIL FURTHER NOTICE.
* AT 08AM WEDNESDAY THE STAGE WAS 10.3 FEET.
* FLOOD STAGE IS 9.0 FEET.
* FORECAST...THE RIVER WILL CREST NEAR 11.1 FEET BY FRIDAY JUNE 03 
  THEN BEGIN FALLING.
* AT STAGES NEAR 11.0 FEET...SOME FARM OUTBUILDINGS BEGIN TO FLOOD. 

$$

SDC099-101-021830-
/O.EXT.KFSD.FL.W.0081.110603T2046Z-000000T0000Z/
/DERS2.1.ER.110603T2046Z.110605T0000Z.000000T0000Z.NO/
931 AM CDT WED JUN 1 2011

THE FLOOD WARNING CONTINUES FOR
  THE BIG SIOUX RIVER NEAR DELL RAPIDS.
* FROM FRIDAY AFTERNOON UNTIL FURTHER NOTICE.
* AT 08AM WEDNESDAY THE STAGE WAS 11.6 FEET.
* FLOOD STAGE IS 12.0 FEET.
* FORECAST...RISE ABOVE FLOOD STAGE BY 4 PM FRIDAY AND CREST NEAR 
  12.3 FEET BY SUNDAY JUNE 05.
* AT STAGES NEAR 12.0 FEET...AGRICULTURAL LANDS ALONG THE LOWER BANKS
  OF THE RIVER BEGIN TO FLOOD. 

$$

SDC099-021830-
/O.EXT.KFSD.FL.W.0082.110605T1200Z-110606T1800Z/
/SFLS2.1.ER.110605T1200Z.110605T1200Z.110605T1800Z.NO/
931 AM CDT WED JUN 1 2011

...FLOOD WARNING NOW EXPECTED TO END 1 PM MONDAY... 
THE FLOOD WARNING CONTINUES FOR
  THE BIG SIOUX RIVER AT SIOUX FALLS 60TH STREET.
* FROM SUNDAY MORNING TO MONDAY AFTERNOON.
* AT 08AM WEDNESDAY THE STAGE WAS 11.5 FEET.
* FLOOD STAGE IS 12.0 FEET.
* FORECAST...THE RIVER IS EXPECTED TO CREST NEAR FLOOD STAGE BY 7 AM 
  SUNDAY.
* AT STAGES NEAR 12.0 FEET...CROP AND PASTURE LAND UPSTREAM OF SIOUX 
  FALLS BEGINS TO FLOOD. 

$$

IAC167-SDC083-127-021830-
/O.CON.KFSD.FL.W.0072.000000T0000Z-000000T0000Z/
/HAWI4.1.ER.110522T1500Z.110603T0600Z.000000T0000Z.NO/
931 AM CDT WED JUN 1 2011

THE FLOOD WARNING CONTINUES FOR
  THE BIG SIOUX RIVER AT HAWARDEN.
* UNTIL FURTHER NOTICE.
* AT 07AM WEDNESDAY THE STAGE WAS 16.1 (ESTIMATED) FEET.
* FLOOD STAGE IS 15.0 FEET.
* FORECAST...THE RIVER WILL CREST NEAR 17.3 FEET BY FRIDAY JUNE 03 
  THEN BEGIN FALLING.

$$

IAC149-SDC127-021830-
/O.CON.KFSD.FL.W.0073.000000T0000Z-000000T0000Z/
/AKRI4.1.ER.000000T0000Z.110603T1800Z.000000T0000Z.NO/
931 AM CDT WED JUN 1 2011

THE FLOOD WARNING CONTINUES FOR
  THE BIG SIOUX RIVER AT AKRON.
* UNTIL FURTHER NOTICE.
* AT 09AM WEDNESDAY THE STAGE WAS 16.9 FEET.
* FLOOD STAGE IS 16.0 FEET.
* FORECAST...THE RIVER WILL CREST NEAR 17.7 FEET BY FRIDAY JUNE 03 
  THEN BEGIN FALLING.
* AT STAGES NEAR 17.0 FEET...ABOUT 6500 ACRES OF FARM LAND ARE 
  FLOODED. 

$$

IAC021-041-021830-
/O.CON.KFSD.FL.W.0075.000000T0000Z-000000T0000Z/
/LNNI4.1.ER.110523T0501Z.110528T1000Z.000000T0000Z.NO/
931 AM CDT WED JUN 1 2011

THE FLOOD WARNING CONTINUES FOR
  THE LITTLE SIOUX RIVER AT LINN GROVE.
* UNTIL FURTHER NOTICE.
* AT 09AM WEDNESDAY THE STAGE WAS 18.4 FEET.
* FLOOD STAGE IS 18.0 FEET.
* FORECAST...THE RIVER WILL CREST NEAR 18.6 FEET BY FRIDAY JUNE 03 
  THEN BEGIN FALLING.
* AT STAGES NEAR 18.5 FEET...THE CITY PARK IN SIOUX RAPIDS IS 
  FLOODED. 

$$

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

BIG SIOUX RIVER
BRCS2     8.0    9.51 WED 9 AM                       9.6  WED JUN 01
BRKS2     9.0   10.28 WED 9 AM    11.1  FRI 7 PM 
DERS2    12.0   11.58 WED 8 AM    12.3  SAT 7 PM 
SFLS2    12.0   11.49 WED 8 AM    12.0  SUN 7 AM 
HAWI4    15.0  E16.10 WED 7 AM    17.3  FRI 1 AM 
AKRI4    16.0   16.93 WED 9 AM    17.7  FRI 1 PM 

LITTLE SIOUX RIVER
LNNI4    18.0   18.41 WED 9 AM    18.6  FRI 7 AM 

MG

693 
WGUS83 KFSD 021317
FLSFSD
FLOOD STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
817 AM CDT THU JUN 2 2011

...THE FLOOD WARNING IS CANCELLED FOR THE FOLLOWING RIVERS IN SOUTH 
DAKOTA...

  BIG SIOUX RIVER NEAR DELL RAPIDS 
  BIG SIOUX RIVER AT SIOUX FALLS 60TH STREET 

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

  BIG SIOUX RIVER NEAR BRUCE
  BIG SIOUX RIVER NEAR BROOKINGS 
  BIG SIOUX RIVER AT HAWARDEN 
  BIG SIOUX RIVER AT AKRON 
  LITTLE SIOUX RIVER AT LINN GROVE 
   
.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. 

&&

SDC011-031717-
/O.CON.KFSD.FL.W.0044.000000T0000Z-000000T0000Z/
/BRCS2.3.ER.110320T0515Z.110328T1430Z.000000T0000Z.NR/
817 AM CDT THU JUN 2 2011

THE FLOOD WARNING CONTINUES FOR
  THE BIG SIOUX RIVER NEAR BRUCE.
* UNTIL FURTHER NOTICE.
* AT 07AM THURSDAY THE STAGE WAS 9.7 FEET.
* FLOOD STAGE IS 8.0 FEET.
* AT STAGES NEAR 9.5 FEET...THE RIGHT BANK OVERFLOWS FLOODING 
  AGRICULTURAL LANDS FOR AS MUCH AS 1/4 MILE. 

$$

SDC011-101-031716-
/O.EXT.KFSD.FL.W.0020.000000T0000Z-110606T1930Z/
/BRKS2.3.ER.110319T1930Z.110325T0146Z.110605T1930Z.NO/
817 AM CDT THU JUN 2 2011

THE FLOOD WARNING CONTINUES FOR
  THE BIG SIOUX RIVER NEAR BROOKINGS.
* UNTIL MONDAY AFTERNOON.
* AT 07AM THURSDAY THE STAGE WAS 10.4 FEET.
* FLOOD STAGE IS 9.0 FEET.
* FORECAST...THE RIVER IS NEAR CREST NOW AND IS EXPECTED TO FALL TO
  BELOW FLOOD STAGE BY SUNDAY JUNE 5.
* AT STAGES NEAR 10.3 FEET...473RD AVENUE NORTH OF THE GAGE BEGINS TO
  FLOOD. 

$$

SDC099-101-021347-
/O.CAN.KFSD.FL.W.0081.000000T0000Z-110602T1317Z/
/DERS2.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
817 AM CDT THU JUN 2 2011

THE FLOOD WARNING IS CANCELLED FOR
  THE BIG SIOUX RIVER NEAR DELL RAPIDS.
* AT 08AM THURSDAY THE STAGE WAS 11.6 FEET.
* FLOOD STAGE IS 12.0 FEET.
* FORECAST...THE RIVER CRESTED BELOW FLOOD STAGE AT 11.6 FEET.  THE 
  RIVER WILL REMAIN NEAR 11.6 FEET FOR THE NEXT FEW DAYS.
* AT STAGES NEAR 12.0 FEET...AGRICULTURAL LANDS ALONG THE LOWER BANKS
  OF THE RIVER BEGIN TO FLOOD. 

$$

SDC099-021347-
/O.CAN.KFSD.FL.W.0082.000000T0000Z-110606T1800Z/
/SFLS2.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
817 AM CDT THU JUN 2 2011

THE FLOOD WARNING IS CANCELLED FOR
  THE BIG SIOUX RIVER AT SIOUX FALLS 60TH STREET.
* AT 07AM THURSDAY THE STAGE WAS 11.5 FEET.
* FLOOD STAGE IS 12.0 FEET.
* FORECAST...THE RIVER CRESTED BELOW FLOOD STAGE AT 11.5 FEET.  THE 
  RIVER WILL REMAIN NEAR 11.5 FEET FOR THE NEXT FEW DAYS.
* AT STAGES NEAR 12.0 FEET...CROP AND PASTURE LAND UPSTREAM OF SIOUX 
  FALLS BEGINS TO FLOOD. 

$$

IAC167-SDC083-127-031716-
/O.EXT.KFSD.FL.W.0072.000000T0000Z-110608T0000Z/
/HAWI4.1.ER.110522T1500Z.110603T0600Z.110607T0000Z.NO/
817 AM CDT THU JUN 2 2011

THE FLOOD WARNING CONTINUES FOR
  THE BIG SIOUX RIVER AT HAWARDEN.
* UNTIL TUESDAY EVENING.
* AT 07AM THURSDAY THE STAGE WAS 16.8 (ESTIMATED) FEET.
* FLOOD STAGE IS 15.0 FEET.
* FORECAST...THE RIVER WILL CREST NEAR 17.2 FEET BY FRIDAY JUNE 03. 
  THE RIVER WILL FALL BELOW FLOOD STAGE MONDAY JUNE 06.

$$

IAC149-SDC127-031716-
/O.EXT.KFSD.FL.W.0073.000000T0000Z-110607T1200Z/
/AKRI4.1.ER.000000T0000Z.110603T1200Z.110606T1200Z.NO/
817 AM CDT THU JUN 2 2011

THE FLOOD WARNING CONTINUES FOR
  THE BIG SIOUX RIVER AT AKRON.
* UNTIL TUESDAY MORNING.
* AT 08AM THURSDAY THE STAGE WAS 17.2 FEET.
* FLOOD STAGE IS 16.0 FEET.
* FORECAST...THE RIVER WILL CREST NEAR 17.9 FEET BY FRIDAY JUNE 03. 
  THE RIVER WILL FALL BELOW FLOOD STAGE MONDAY JUNE 06.
* AT STAGES NEAR 17.0 FEET...ABOUT 6500 ACRES OF FARM LAND ARE 
  FLOODED. 

$$

IAC021-041-031716-
/O.EXT.KFSD.FL.W.0075.000000T0000Z-110607T0000Z/
/LNNI4.1.ER.110523T0501Z.110528T1000Z.110606T0000Z.NO/
817 AM CDT THU JUN 2 2011

THE FLOOD WARNING CONTINUES FOR
  THE LITTLE SIOUX RIVER AT LINN GROVE.
* UNTIL MONDAY EVENING.
* AT 08AM THURSDAY THE STAGE WAS 18.2 FEET.
* FLOOD STAGE IS 18.0 FEET.
* FORECAST...THE RIVER WILL CONTINUE TO FALL TO BELOW FLOOD STAGE BY 
  SUNDAY JUNE 05.
* AT STAGES NEAR 18.5 FEET...THE CITY PARK IN SIOUX RAPIDS IS 
  FLOODED. 

$$

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

BIG SIOUX RIVER
BRCS2     8.0    9.66 THU 8 AM                       9.7  THU JUN 02
BRKS2     9.0   10.38 THU 8 AM                      10.4  THU JUN 02
DERS2    12.0   11.60 THU 8 AM                      12.4  WED MAY 25
SFLS2    12.0   11.49 THU 7 AM                      12.0  THU MAY 26
HAWI4    15.0  E16.80 THU 7 AM    17.2  FRI 1 AM 
AKRI4    16.0   17.18 THU 8 AM    17.9  FRI 7 AM 

LITTLE SIOUX RIVER
LNNI4    18.0   18.21 THU 8 AM                      19.1  SUN MAY 29

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 May 30, 3:45 AM CDT, 5 hours 43 minutes earlier.

Area forecast discussion, May 30, 3:45 AM CDT, 5 hours 43 minutes before

AREA FORECAST DISCUSSION FOR SOUTHEAST SD/SOUTHWEST MN/NORTHWEST IA
NATIONAL WEATHER SERVICE SIOUX FALLS SD
345 AM CDT MON MAY 30 2011

.DISCUSSION...
LAST OF THUNDERSTORMS WITH THIS BAND WILL EXIT THE NORTHERN AND
EASTERN EDGES OF THE FORECAST AREA EARLY THIS MORNING. THE
DRASTICALLY WARMING AIR WILL THEN BE TOO CAPPED FOR ACTIVITY UNTIL
FRONTAL LIFT ARRIVES FROM THE WEST BEGINNING MID AFTERNOON. DECENT
HEATING EXPECTED WITH THE WARMING STRONGLY CLEARING OUT THE STRATUS.
INCREASE IN MOISTURE A LITTLE HIGHER UP WILL RESULT IN CU/STRATOCU
FORMATION WITH THE HEATING ESPECIALLY EAST DURING THE MIDDLE OF THE
DAY BUT THERE SHOULD STILL BE HALF DECENT SUNSHINE.
MEANWHILE...STRENGTHENING LOW LEVEL WIND FIELDS AND HEATING STILL
POINT TO A DECENT WIND ADVISORY EVENT OVER ALL BUT THE FAR WESTERN
FORECAST AREA FOR THIS AFTERNOON. WILL KEEP THE SAME TIMES FROM
EARLIER ISSUANCE AS THEY LOOK GOOD. ALSO DO NOT SEE SIGNIFICANT
INCREASE IN EXPECTED WINDS FAR WEST SO WILL KEEP ADVISORY OUT OF
THAT AREA. DECENT LIFT AND INSTABILITY PLUS STRONG KIND OF
UNIDIRECTIONAL WIND FIELDS...AND OF COURSE FRONTAL ASSOCIATED
LIFT...POINT TO KEEPING DECENT SEVERE WEATHER THREAT FOR LATE THIS
AFTERNOON AND EVENING.

DECENT MOVEMENT OF FRONT AND DRYING BEHIND IT SHOULD CLEAR OUT
STORMS FROM THE WEST FAIRLY QUICKLY LATE TONIGHT. TUESDAY STILL
LOOKS NICE AND DRY AND MILD AND TUESDAY NIGHT SHOULD BE QUIET AS
WELL. MODELS ARE SHOWING A CHANGE IN STRENGTH OF STORM POTENTIAL BY
LATE WEDNESDAY AND WEDNESDAY NIGHT. WILL NOT DO MUCH WITH POPS AT
THIS TIME AS ACTIVITY LIKELY TO BE SLOW TO GET GOING DURING THE
DAYTIME...AND WE HAVE A CHANCE IN FOR WEDNESDAY NIGHT WHICH I WILL
NOT UPGRADE AT THIS TIME. THE CHANGE DEALS WITH THE INSTABILITY AND
MOISTURE RETURN BEING QUITE RAPID FROM THE SOUTH...AND THE RELATED
HIGHER SEVERE POTENTIAL. THIS WILL THEREFORE BE REFLECTED MAINLY IN
THE HAZARDOUS WEATHER OUTLOOK.

SOME OF THESE WARM ADVECTION STORMS MAY HANG AROUND IN THE
NORTH/NORTHEAST PART OF THE AREA THROUGH THURSDAY. OTHERWISE A RAIN
FREE AND WAR...SOMEWHAT SUMMERLIKE...REGIME WILL BE DEVELOPING AND
SHOULD CONTINUE THROUGH THE WEEKEND. / WILLIAMS

&&

.AVIATION...
WITH CONVECTION MOVING OUT EARLY THIS MORNING...THE WIDESPREAD MVFR
TO IFR CEILINGS AND VISIBILITIES IN THE STRATUS WILL CONTINUE TO BE
STEADILY ERODE BY WARMING FROM THE SOUTH. THIS SHOULD CONVERT ALL OF
THE AREA TO VFR BEFORE 18Z. SOME CEILINGS 3-5 THOUSAND FEET MAY
DEVELOP WITH THE HEATING OF THE INCREASING MOISTURE AT THAT LEVEL
MAINLY EAST. LOWERING TO AREAS OF MVFR TO LOCAL IFR CONDITIONS IN AN
AREA OF WIDESPREAD STRONG TO SEVERE THUNDERSTORMS SHOULD BEGIN IN
THE WESTERN PART OF THE AREA AROUND 21Z AND SPREAD EAST THROUGH
31/06Z. AT THAT TIME CLEARING BACK TO VFR WILL HAVE BEGUN IN THE
WEST AND THIS SHOULD SPREAD STEADILY EAST OVER AREA WITH VFR OVER
FORECAST AREA BEFORE 31/12Z. SUSTAINED SOUTH WINDS TO 25 KNOTS AND
GUSTS TO 35 PLUS KNOTS WILL DEVELOP EASTERN TWO THIRDS OF FORECAST
AREA BY 17Z AND CONTINUE TO 31/00Z. / WILLIAMS

&&

.HYDROLOGY...
AT THIS TIME RAINFALL WITH THE FRONTAL BAND OF CONVECTION SHOULD
STAY GENERALLY AT AN INCH OR LESS OVER AREA THIS AFTERNOON AND
TONIGHT. THIS SHOULD PRECLUDE MUCH FLOODING POTENTIAL...BUT WE WILL
HAVE TO WATCH FOR THE LOCALLY HIGHER AMOUNTS SINCE RAINFALL WILL BE
LOCALLY INTENSE. IN OTHER WORDS NO FLASH FLOOD OR FLOOD WATCH NEEDED
BUT WE WILL HAVE AN EYE FOR THE UNEXPECTED. / WILLIAMS

&&

.FSD WATCHES/WARNINGS/ADVISORIES...
IA...WIND ADVISORY FROM NOON TODAY TO 7 PM CDT THIS EVENING FOR
     IAZ001>003-012>014-020>022-031-032.

MN...WIND ADVISORY FROM NOON TODAY TO 7 PM CDT THIS EVENING FOR
     MNZ071-072-080-081-089-090-097-098.

NE...WIND ADVISORY FROM NOON TODAY TO 7 PM CDT THIS EVENING FOR
     NEZ013-014.

SD...WIND ADVISORY FROM NOON TODAY TO 7 PM CDT THIS EVENING FOR
     SDZ039-040-054>056-060>062-065>071.

&&

WILLIAMS

Hazardous weather outlook, May 30, 4:52 AM CDT, 4 hours 36 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SIOUX FALLS SD
452 AM CDT MON MAY 30 2011

SDZ038>040-050-052>071-MNZ071-072-080-081-089-090-097-098-
IAZ001>003-012>014-020>022-031-032-NEZ013-014-311200-
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-
452 AM CDT MON MAY 30 2011

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

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS...
ISOLATED THUNDERSTORMS WITH LARGE HAIL IN SOUTHWEST MINNESOTA AND
NORTHWEST IOWA WILL END EARLY THIS MORNING.

LARGE HAIL...DAMAGING WINDS...AND ISOLATED TORNADOES ARE POSSIBLE
WITH SEVERE THUNDERSTORMS OVER THE AREA LATE THIS AFTERNOON AND
THIS EVENING. THE THUNDERSTORMS ARE EXPECTED TO DEVELOP WEST OF
THE JAMES RIVER LATE THIS AFTERNOON NEAR A COLD FRONT...AND MOVE
EAST ACROSS THE AREA THROUGH THIS EVENING. HAIL TO GOLF BALL SIZE
AND WIND GUSTS TO 70 MPH ARE POSSIBLE. THE SEVERE RISK IS
MODERATE OVER MOST OF THE AREA...BUT A LITTLE LESS FROM WINDOM
MINNESOTA TO STORM LAKE IOWA WHERE STORMS COULD WEAKEN A LITTLE
BEFORE ARRIVING DURING THE MIDDLE TO THE NIGHT.

FLOODING...
RECORD HIGH RELEASES ARE EXPECTED FROM THE MISSOURI RIVER
RESERVOIRS INTO MID SUMMER. HIGH WATER LEVELS WILL MAINLY IMPACT
CAMPING AND BOATING ACTIVITIES ALONG THE RIVER.

WIND AND FOG...
SOUTHERLY WINDS WILL AVERAGE 30 TO 35 MPH WITH GUSTS TO OVER 40
MPH EAST OF THE JAMES RIVER FROM THE END OF THIS MORNING THROUGH
THIS AFTERNOON.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP LATE WEDNESDAY OR
WEDNESDAY EVENING OVER THE AREA AND CONTINUE MUCH OF WEDNESDAY
NIGHT. LARGE HAIL WILL BE POSSIBLE WITH A FEW OF THE STORMS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL BE LIKELY AFTER 4 PM CDT.

&&

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

WILLIAMS

The office that day

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

Issued	Product	Office	Counties	Lasted
May 29, 11:03 PM CDT	Severe Thunderstorm Warning	FSD	Bon Homme, Charles Mix	42 min
May 29, 11:30 PM CDT	Severe Thunderstorm Warning	FSD	Hutchinson, Turner	45 min
May 29, 11:39 PM CDT	Severe Thunderstorm Warning	FSD	Bon Homme, Charles Mix, Douglas, Gregory, Hutchinson, Turner and 1 more	36 min
May 30, 12:14 AM CDT	Severe Thunderstorm Warning	FSD	Bon Homme, Charles Mix, Douglas, Hutchinson, Turner, Yankton	31 min
May 30, 12:53 AM CDT	Severe Thunderstorm Warning	FSD	Davison, Hanson, Miner, Sanborn	37 min
May 30, 1:46 AM CDT	Severe Thunderstorm Warning	FSD	Beadle, Jerauld	44 min
May 30, 2:39 AM CDT	Severe Thunderstorm Warning	FSD	Beadle	36 min
May 30, 3:36 AM CDT	Severe Thunderstorm Warning	FSD	Brookings	39 min
May 30, 5:08 PM CDT	Severe Thunderstorm Warning	FSD	Gregory	37 min
May 30, 5:37 PM CDT	Severe Thunderstorm Warning	FSD	Jerauld	23 min
May 30, 5:48 PM CDT	Tornado Warning	FSD	Bon Homme, Charles Mix	42 min
May 30, 6:26 PM CDT	Tornado Warning	FSD	Bon Homme, Charles Mix, Douglas, Hutchinson	34 min
May 30, 6:33 PM CDT	Tornado Warning	FSD	Beadle	27 min
May 30, 6:38 PM CDT	Severe Thunderstorm Warning	FSD	Charles Mix, Gregory	52 min
May 30, 6:51 PM CDT	Severe Thunderstorm Warning	FSD	Davison, Hanson, Miner, Sanborn	39 min

Nearby

River Flood Warnings in South Dakota, 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; the gauge from the NWS water service and the USGS.