Alert archive / South Dakota / River Flood Warnings in 2018

River Flood Warning 248, NWS Sioux Falls, SD

September 28, 2018Charles Mix County, South Dakota; Boyd County, Nebraska

NWS Sioux Falls, SD issued this river flood warning at Sep 28, 2018, 9:38 AM CDT for Charles Mix County, South Dakota; Boyd County, Nebraska. It was in force for 49 hr.

The area

The outline as issued.

The facts

Issued
Sep 28, 2018, 9:38 AM CDT (14:38 UTC)
Expired
Sep 30, 2018, 10:50 AM CDT
In force
49 hr
Issued by
NWS Sioux Falls, SD
Area
Storm-based polygon
Flood severity
Minor

Counties Boyd County, NE, Charles Mix County, SD

The radar

The Sioux Falls radar (KFSD), 156 km from the middle of the area, began a volume at 14:39 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 Missouri River near Greenwood (GRWS2).

Action stage
29 ft
Minor stage
30 ft
Moderate stage
31 ft
Major stage
32 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 06453020, 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.

527 
WGUS43 KFSD 281438
FLWFSD
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Sioux Falls SD
938 AM CDT Fri Sep 28 2018

...The National Weather Service in Sioux Falls has issued a flood 
warning for the following rivers in Nebraska...South Dakota...

  Missouri River Near Greenwood
 
.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://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.

&&

NEC015-SDC023-291838-
/O.NEW.KFSD.FL.W.0248.180928T1438Z-000000T0000Z/
/GRWS2.1.ER.000000T0000Z.180928T1415Z.000000T0000Z.NO/
938 AM CDT Fri Sep 28 2018

The National Weather Service in Sioux Falls has issued a 

* Flood Warning for 
  The Missouri River Near Greenwood.
* until further notice.
* At 09AM Friday the stage was 30.16 feet.
* Flood stage is 30.00 feet.
* At stages near 30.0 feet...Flooding begins to affect significant 
amounts of agricultural land. 

&&
 
LAT...LON 4304 9859 4309 9854 4296 9844 4291 9830
          4286 9831 4293 9849

$$

&& 
Location Flood    Latest Observed   Recent Observed
         Stage    Stage  Time       Crest  Time       

MISSOURI RIVER
GRWS2    30.0     30.16 Fri 9 AM    30.50 Sep 19
3 follow-up statements
715 
WGUS83 KFSD 291508
FLSFSD
Flood Statement
National Weather Service Sioux Falls SD
1008 AM CDT Sat Sep 29 2018

...The Flood Warning continues for the following rivers in Nebraska...
Iowa...South Dakota...

  Big Sioux River above Hawarden
  Big Sioux River At Akron
  Big Sioux River near Richland
  Little Sioux River near Milford
  Little Sioux River at Spencer
  Little Sioux River At Linn Grove
  Little Sioux River At Cherokee
  Missouri River Near Greenwood
  Missouri River Near Verdel
  Missouri River At Niobrara
  Missouri River At Springfield
 
.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://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.

&&

IAC149-167-SDC127-301908-
/O.EXT.KFSD.FL.W.0199.000000T0000Z-181001T0400Z/
/HWDI4.3.ER.180920T1534Z.180922T2101Z.180930T0400Z.UU/
1008 AM CDT Sat Sep 29 2018

The Flood Warning continues for
  The Big Sioux River above Hawarden.
* until Sunday evening.
* At 08AM Saturday the stage was 21.09 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Flood stage is 20.50 feet.
* Forecast...The river will continue to fall to below flood stage by 
  Saturday September 29.
* At stages near 20.5 feet...Agricultural flooding begins on the 
  South Dakota side of the river. 

&&
 
LAT...LON 4308 9654 4308 9641 4302 9646 4291 9649
          4291 9658

$$

IAC149-SDC127-301908-
/O.EXT.KFSD.FL.W.0200.000000T0000Z-181002T2000Z/
/AKRI4.3.ER.180921T0024Z.180923T2000Z.181001T2000Z.NO/
1008 AM CDT Sat Sep 29 2018

The Flood Warning continues for
  The Big Sioux River At Akron.
* until Tuesday afternoon.
* At 09AM Saturday the stage was 17.91 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Flood stage is 16.00 feet.
* Forecast...The river will continue to fall to below flood stage by 
  Monday October 01.
* At stages near 17.0 feet...About 6500 acres of farm land are 
  flooded. 

&&
 
LAT...LON 4291 9658 4291 9649 4281 9654 4277 9659
          4278 9665

$$

IAC149-SDC127-301908-
/O.CON.KFSD.FL.W.0241.000000T0000Z-000000T0000Z/
/BSRS2.3.ER.180921T1300Z.180923T2315Z.000000T0000Z.UU/
1008 AM CDT Sat Sep 29 2018

The Flood Warning continues for
  The Big Sioux River near Richland.
* until further notice.
* At 09AM Saturday the stage was 1119.30 feet.
* Flood stage is 1117.00 feet.
* At stages near 1119 feet...Widespread flooding of crop and pasture 
  land begins. 

&&
 
LAT...LON 4278 9665 4277 9659 4273 9660 4268 9655
          4264 9661 4270 9666

$$

IAC041-059-301908-
/O.CON.KFSD.FL.W.0210.000000T0000Z-181002T2100Z/
/MIFI4.2.ER.180920T0753Z.180924T1215Z.181001T2100Z.NO/
1008 AM CDT Sat Sep 29 2018

The Flood Warning continues for
  The Little Sioux River near Milford.
* until Tuesday afternoon.
* At 08AM Saturday the stage was 13.63 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Flood stage is 12.00 feet.
* Forecast...The river will continue to fall to below flood stage by 
  Monday October 01.
* At stages near 14.0 feet...Significant amounts of pasture and other
  farm lands begin to flood. 

&&
 
LAT...LON 4341 9527 4341 9521 4334 9520 4331 9515
          4321 9517 4321 9528 4330 9525

$$

IAC041-301908-
/O.EXT.KFSD.FL.W.0211.000000T0000Z-181005T0300Z/
/SPWI4.3.ER.180920T0758Z.180921T1200Z.181004T0300Z.NO/
1008 AM CDT Sat Sep 29 2018

The Flood Warning continues for
  The Little Sioux River at Spencer.
* until Thursday evening.
* At 08AM Saturday the stage was 12.07 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Flood stage is 10.00 feet.
* Forecast...The river will continue to fall to below flood stage by 
  Wednesday October 03.
* At stages near 10.0 feet...the right bank overflows and minor flooding
  of the Spencer city park and rural agricultural areas begins.
&&
 
LAT...LON 4321 9528 4321 9517 4314 9503 4299 9503
          4302 9510 4310 9511 4314 9523

$$

IAC021-041-301908-
/O.EXT.KFSD.FL.W.0212.000000T0000Z-181004T1800Z/
/LNNI4.3.ER.180920T1206Z.180923T0300Z.181003T1800Z.NR/
1008 AM CDT Sat Sep 29 2018

The Flood Warning continues for
  The Little Sioux River At Linn Grove.
* until Thursday afternoon.
* At 09AM Saturday the stage was 19.54 feet.
* Moderate flooding is occurring and Moderate flooding is forecast.
* Flood stage is 18.00 feet.
* Forecast...The river will continue to fall to below flood stage by 
  Wednesday October 03.
* At stages near 20.0 feet...Significant flooding of agricultural 
  land begins along this entire stretch of the river.

&&
 
LAT...LON 4302 9510 4299 9503 4287 9512 4288 9536
          4296 9543 4293 9520

$$

IAC035-301908-
/O.EXT.KFSD.FL.W.0214.000000T0000Z-181003T0900Z/
/CHKI4.3.ER.180920T1550Z.180921T1600Z.181002T0900Z.NR/
1008 AM CDT Sat Sep 29 2018

The Flood Warning continues for
  The Little Sioux River At Cherokee.
* until late Tuesday night.
* At 08AM Saturday the stage was 19.23 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Flood stage is 17.00 feet.
* Forecast...The river will continue to fall to below flood stage by 
  Tuesday October 02.
* At stages near 19.0 feet...The north bank of the river overflows. 

&&
 
LAT...LON 4296 9543 4291 9539 4265 9557 4256 9569
          4256 9578 4270 9564

$$

NEC015-SDC023-301908-
/O.CON.KFSD.FL.W.0248.000000T0000Z-000000T0000Z/
/GRWS2.1.ER.000000T0000Z.180929T1315Z.000000T0000Z.NO/
1008 AM CDT Sat Sep 29 2018

The Flood Warning continues for
  The Missouri River Near Greenwood.
* until further notice.
* At 08AM Saturday the stage was 30.28 feet.
* Flood stage is 30.00 feet.
* At stages near 30.0 feet...Flooding begins to affect significant 
  amounts of agricultural land. 

&&
 
LAT...LON 4304 9859 4309 9854 4296 9844 4291 9830
          4286 9831 4293 9849

$$

NEC107-SDC009-023-301908-
/O.CON.KFSD.FL.W.0249.000000T0000Z-000000T0000Z/
/MRVN1.1.ER.180928T2315Z.180929T0345Z.000000T0000Z.NO/
1008 AM CDT Sat Sep 29 2018

The Flood Warning continues for
  The Missouri River Near Verdel.
* until further notice.
* At 09AM Saturday the stage was 24.00 feet.
* Flood stage is 24.00 feet.
* Recent activity...The river rose above flood stage on Saturday 
  September 29.
* At stages near 25.0 feet...Boat docks at Lazy River Acres near 
  Verdel will be flooded and some homes will be surrounded by water. 

&&
 
LAT...LON 4286 9831 4291 9830 4284 9810 4279 9811
          4282 9816 4285 9825

$$

NEC107-SDC009-301908-
/O.CON.KFSD.FL.W.0247.000000T0000Z-000000T0000Z/
/MRNN1.1.ER.180925T0445Z.180929T1415Z.000000T0000Z.NO/
1008 AM CDT Sat Sep 29 2018

The Flood Warning continues for
  The Missouri River At Niobrara.
* until further notice.
* At 09AM Saturday the stage was 21.96 feet.
* Flood stage is 21.00 feet.
* At stages near 22.0 feet...Bottom Road near Springfield floods. 

&&
 
LAT...LON 4279 9811 4284 9810 4279 9801 4282 9795
          4278 9790 4274 9801

$$

NEC107-SDC009-301908-
/O.CON.KFSD.FL.W.0172.000000T0000Z-000000T0000Z/
/SPGS2.1.ER.180708T1903Z.180920T2200Z.000000T0000Z.NO/
1008 AM CDT Sat Sep 29 2018

The Flood Warning continues for
  The Missouri River At Springfield.
* until further notice.
* At 08AM Saturday the stage was 11.41 feet.
* Flood stage is 10.00 feet.
* At stages near 12.0 feet...Some camping areas at Springfield 
  Recreational Area will be flooded. 

&&
 
LAT...LON 4278 9790 4282 9795 4287 9791 4288 9784
          4283 9783 4281 9788

$$

&& 
Location Flood    Latest Observed    Recent Observed
         Stage    Stage  Time        Crest  Time

BIG SIOUX RIVER
HWDI4      20.5    21.09 Sat 9 AM     31.6  Sat Sep 22
AKRI4      16.0    17.91 Sat 9 AM     22.2  Sun Sep 23
BSRS2    1117.0  1119.30 Sat 9 AM   1123.2  Sun Sep 23

LITTLE SIOUX RIVER
MIFI4      12.0    13.63 Sat 8 AM     16.0  Mon Sep 24
SPWI4      10.0    12.07 Sat 8 AM     16.6  Fri Sep 21
LNNI4      18.0    19.54 Sat 9 AM     23.9  Sat Sep 22
CHKI4      17.0    19.23 Sat 8 AM     27.0  Fri Sep 21

MISSOURI RIVER
GRWS2      30.0    30.5  Wed Sep 19
MRVN1      24.0    24.3  Thu Sep 20
MRNN1      21.0    22.2  Thu Sep 20
SPGS2      10.0     M        M
241 
WGUS83 KFSD 300037
FLSFSD
Flood Statement
National Weather Service Sioux Falls SD
737 PM CDT Sat Sep 29 2018

...The Flood Warning continues for the following rivers in Iowa...
South Dakota...

  Big Sioux River above Hawarden
  Big Sioux River At Akron
  Little Sioux River At Linn Grove
  Little Sioux River At Cherokee
  
...The Flood Warning continues for the following rivers in 
Nebraska...South Dakota...Iowa...

  Missouri River Near Greenwood
  Missouri River Near Verdel
  Missouri River At Niobrara
  Missouri River At Springfield
  Big Sioux River near Richland
  Little Sioux River near Milford
  Little Sioux River at Spencer
 
.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://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.

&&

IAC149-167-SDC127-010438-
/O.EXT.KFSD.FL.W.0199.000000T0000Z-181001T0600Z/
/HWDI4.3.ER.180920T1534Z.180922T2101Z.180930T0600Z.UU/
737 PM CDT Sat Sep 29 2018

The Flood Warning continues for
  The Big Sioux River above Hawarden.
* until late Sunday night.
* At 06PM Saturday the stage was 20.77 feet.
* Flood stage is 20.50 feet.
* Forecast...The river will continue to fall to below flood stage by 
  Sunday September 30.
* At stages near 20.5 feet...Agricultural flooding begins on the 
South Dakota side of the river. 

&&
 
LAT...LON 4308 9654 4308 9641 4302 9646 4291 9649
          4291 9658

$$

IAC149-SDC127-010438-
/O.EXT.KFSD.FL.W.0200.000000T0000Z-181003T0000Z/
/AKRI4.3.ER.180921T0024Z.180923T2000Z.181002T0000Z.NO/
737 PM CDT Sat Sep 29 2018

The Flood Warning continues for
  The Big Sioux River At Akron.
* until Tuesday evening.
* At 07PM Saturday the stage was 17.59 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Flood stage is 16.00 feet.
* Forecast...The river will continue to fall to below flood stage by 
  Monday October 1.
* At stages near 17.0 feet...About 6500 acres of farm land are 
flooded. 

&&
 
LAT...LON 4291 9658 4291 9649 4281 9654 4277 9659
          4278 9665

$$

IAC149-SDC127-010438-
/O.CON.KFSD.FL.W.0241.000000T0000Z-000000T0000Z/
/BSRS2.3.ER.180921T1300Z.180923T2315Z.000000T0000Z.UU/
737 PM CDT Sat Sep 29 2018

The Flood Warning continues for
  The Big Sioux River near Richland.
* until further notice.
* At 07PM Saturday the stage was 1119.00 feet.
* Flood stage is 1117.00 feet.
* At stages near 1119 feet...Widespread flooding of crop and pasture 
land begins. 

&&
 
LAT...LON 4278 9665 4277 9659 4273 9660 4268 9655
          4264 9661 4270 9666

$$

NEC015-SDC023-010438-
/O.CON.KFSD.FL.W.0248.000000T0000Z-000000T0000Z/
/GRWS2.1.ER.000000T0000Z.180929T1315Z.000000T0000Z.NO/
737 PM CDT Sat Sep 29 2018

The Flood Warning continues for
  The Missouri River Near Greenwood.
* until further notice.
* At 07PM Saturday the stage was 30.13 feet.
* Flood stage is 30.00 feet.
* At stages near 30.0 feet...Flooding begins to affect significant 
amounts of agricultural land. 

&&
 
LAT...LON 4304 9859 4309 9854 4296 9844 4291 9830
          4286 9831 4293 9849

$$

NEC107-SDC009-023-010438-
/O.CON.KFSD.FL.W.0249.000000T0000Z-000000T0000Z/
/MRVN1.1.ER.180928T2315Z.180930T0000Z.000000T0000Z.NO/
737 PM CDT Sat Sep 29 2018

The Flood Warning continues for
  The Missouri River Near Verdel.
* until further notice.
* At 07PM Saturday the stage was 24.03 feet.
* Flood stage is   24.00 feet.
* Recent activity...The river rose above flood stage on Saturday 
  September 29.
* At stages near 25.0 feet...Boat docks at Lazy River Acres near 
Verdel will be flooded and some homes will be surrounded by water. 

&&
 
LAT...LON 4286 9831 4291 9830 4284 9810 4279 9811
          4282 9816 4285 9825

$$

NEC107-SDC009-010438-
/O.CON.KFSD.FL.W.0247.000000T0000Z-000000T0000Z/
/MRNN1.1.ER.180925T0445Z.180929T2315Z.000000T0000Z.NO/
737 PM CDT Sat Sep 29 2018

The Flood Warning continues for
  The Missouri River At Niobrara.
* until further notice.
* At 07PM Saturday the stage was 21.99 feet.
* Flood stage is 21.00 feet.
* At stages near 22.0 feet...Bottom Road near Springfield floods. 

&&
 
LAT...LON 4279 9811 4284 9810 4279 9801 4282 9795
          4278 9790 4274 9801

$$

NEC107-SDC009-010438-
/O.CON.KFSD.FL.W.0172.000000T0000Z-000000T0000Z/
/SPGS2.1.ER.180708T1903Z.180920T2200Z.000000T0000Z.NO/
737 PM CDT Sat Sep 29 2018

The Flood Warning continues for
  The Missouri River At Springfield.
* until further notice.
* At 07PM Saturday the stage was 11.45 feet.
* Flood stage is 10.00 feet.
* At stages near 12.0 feet...Some camping areas at Springfield 
Recreational Area will be flooded. 

&&
 
LAT...LON 4278 9790 4282 9795 4287 9791 4288 9784
          4283 9783 4281 9788

$$

IAC041-059-010438-
/O.CON.KFSD.FL.W.0210.000000T0000Z-181002T2100Z/
/MIFI4.2.ER.180920T0753Z.180924T1215Z.181001T2100Z.NO/
737 PM CDT Sat Sep 29 2018

The Flood Warning continues for
  The Little Sioux River near Milford.
* until Tuesday afternoon.
* At 06PM Saturday the stage was 13.31 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Flood stage is 12.00 feet.
* Forecast...The river will continue to fall to below flood stage by 
  Monday October 1.
* At stages near 14.0 feet...Significant amounts of pasture and other
farm lands begin to flood. 

&&
 
LAT...LON 4341 9527 4341 9521 4334 9520 4331 9515
          4321 9517 4321 9528 4330 9525

$$

IAC041-010438-
/O.CON.KFSD.FL.W.0211.000000T0000Z-181005T0300Z/
/SPWI4.3.ER.180920T0758Z.180921T1200Z.181004T0300Z.NO/
737 PM CDT Sat Sep 29 2018

The Flood Warning continues for
  The Little Sioux River at Spencer.
* until Thursday evening.
* At 06PM Saturday the stage was 11.93 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Flood stage is 10.00 feet.
* Forecast...The river will continue to fall to below flood stage by 
  Wednesday October 03.

&&
 
LAT...LON 4321 9528 4321 9517 4314 9503 4299 9503
          4302 9510 4310 9511 4314 9523

$$

IAC021-041-010438-
/O.EXT.KFSD.FL.W.0212.000000T0000Z-181005T0000Z/
/LNNI4.3.ER.180920T1206Z.180923T0300Z.181004T0000Z.NR/
737 PM CDT Sat Sep 29 2018

The Flood Warning continues for
  The Little Sioux River At Linn Grove.
* until Thursday evening.
* At 07PM Saturday the stage was 19.38 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Flood stage is 18.00 feet.
* Forecast...The river will continue to fall to below flood stage by 
  Wednesday October 3.
* At stages near 20.0 feet...Significant flooding of agricultural 
land begins along this entire stretch of the river. 

&&
 
LAT...LON 4302 9510 4299 9503 4287 9512 4288 9536
          4296 9543 4293 9520

$$

IAC035-010438-
/O.EXT.KFSD.FL.W.0214.000000T0000Z-181003T0200Z/
/CHKI4.3.ER.180920T1550Z.180921T1600Z.181002T0200Z.NR/
737 PM CDT Sat Sep 29 2018

The Flood Warning continues for
  The Little Sioux River At Cherokee.
* until Tuesday evening.
* At 06PM Saturday the stage was 18.84 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Flood stage is  17.00 feet.
* Forecast...The river will continue to fall to below flood stage by 
  Monday October 1.
* At stages near 19.0 feet...The north bank of the river overflows. 

&&
 
LAT...LON 4296 9543 4291 9539 4265 9557 4256 9569
          4256 9578 4270 9564

$$

&& 
Location Flood    Latest Observed   Maximum Forecast  Recent Observed
         Stage    Stage  Time       Stage  Time       Crest Time

BIG SIOUX RIVER
HWDI4    20.5     20.77 Sat 6 PM      20.5  Sun 1 AM   31.6  Sat Sep 22
AKRI4    16.0     17.59 Sat 7 PM      17.5  Sun 1 AM   22.2  Sun Sep 23
BSRS2    1117.0 1119.00 Sat 7 PM        M            1123.2  Sun Sep 23

MISSOURI RIVER
GRWS2    30.0   30.13 Sat 7 PM        M                30.5  Thu Sep 20
MRVN1    24.0   24.03 Sat 7 PM        M                24.3  Thu Sep 20
MRNN1    21.0   21.99 Sat 7 PM        M                22.2  Thu Sep 20
SPGS2    10.0   11.45 Sat 7 PM        M                   M  M         

LITTLE SIOUX RIVER
MIFI4    12.0   13.31 Sat 6 PM      13.1  Sun 1 AM     16.0  Mon Sep 24
SPWI4    10.0   11.93 Sat 6 PM      11.8  Sun 1 AM     16.6  Fri Sep 21
LNNI4    18.0   19.38 Sat 7 PM      19.3  Sun 1 AM     23.9  Sat Sep 22
CHKI4    17.0   18.84 Sat 6 PM      18.6  Sun 1 AM     27.0  Fri Sep 21
580 
WGUS83 KFSD 301550
FLSFSD
Flood Statement
National Weather Service Sioux Falls SD
1050 AM CDT Sun Sep 30 2018

...The Flood Warning is cancelled for the following rivers in 
Nebraska...South Dakota...Iowa...

  Missouri River Near Greenwood
  Missouri River Near Verdel
  Big Sioux River above Hawarden

...The Flood Warning continues for the following rivers in 
Nebraska...South Dakota...Iowa...

  Missouri River At Niobrara
  Missouri River At Springfield
  Big Sioux River At Akron
  Big Sioux River near Richland
  Little Sioux River near Milford
  Little Sioux River at Spencer
  Little Sioux River At Linn Grove
  Little Sioux River At Cherokee
 
.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://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.

&&

NEC015-SDC023-301620-
/O.CAN.KFSD.FL.W.0248.000000T0000Z-180930T1550Z/
/GRWS2.1.ER.180930T1430Z.000000T0000Z.180930T1430Z.NO/
1050 AM CDT Sun Sep 30 2018

The Flood Warning is cancelled for
  The Missouri River Near Greenwood.
* At 10AM Sunday the stage was 29.99 feet.
* Flood stage is 30.00 feet.
* Recent activity...The river rose above flood stage on Sunday 
  September 30.
* At stages near 30.0 feet...Flooding begins to affect significant 
  amounts of agricultural land. 

&&
 
LAT...LON 4304 9859 4309 9854 4296 9844 4291 9830
          4286 9831 4293 9849

$$

NEC107-SDC009-023-301620-
/O.CAN.KFSD.FL.W.0249.000000T0000Z-180930T1550Z/
/MRVN1.1.ER.180928T2315Z.180930T0000Z.180930T0700Z.NO/
1050 AM CDT Sun Sep 30 2018

The Flood Warning is cancelled for
  The Missouri River Near Verdel.
* At 10AM Sunday the stage was 23.92 feet.
* Flood stage is 24.00 feet.
* At stages near 25.0 feet...Boat docks at Lazy River Acres near 
  Verdel will be flooded and some homes will be surrounded by water. 

&&
 
LAT...LON 4286 9831 4291 9830 4284 9810 4279 9811
          4282 9816 4285 9825

$$

NEC107-SDC009-011949-
/O.CON.KFSD.FL.W.0247.000000T0000Z-000000T0000Z/
/MRNN1.1.ER.180925T0445Z.180929T2315Z.000000T0000Z.NO/
1050 AM CDT Sun Sep 30 2018

The Flood Warning continues for
  The Missouri River At Niobrara.
* until further notice.
* At 10AM Sunday the stage was 21.93 feet.
* Flood stage is 21.00 feet.
* At stages near 22.0 feet...Bottom Road near Springfield floods. 

&&
 
LAT...LON 4279 9811 4284 9810 4279 9801 4282 9795
          4278 9790 4274 9801

$$

NEC107-SDC009-011949-
/O.CON.KFSD.FL.W.0172.000000T0000Z-000000T0000Z/
/SPGS2.1.ER.180708T1903Z.180920T2200Z.000000T0000Z.NO/
1050 AM CDT Sun Sep 30 2018

The Flood Warning continues for
  The Missouri River At Springfield.
* until further notice.
* At 10AM Sunday the stage was 11.47 feet.
* Flood stage is 10.00 feet.
* At stages near 12.0 feet...Some camping areas at Springfield 
  Recreational Area will be flooded. 

&&
 
LAT...LON 4278 9790 4282 9795 4287 9791 4288 9784
          4283 9783 4281 9788

$$

IAC149-167-SDC127-301620-
/O.CAN.KFSD.FL.W.0199.000000T0000Z-181001T0600Z/
/HWDI4.3.ER.180920T1534Z.180922T2101Z.180930T0835Z.UU/
1050 AM CDT Sun Sep 30 2018

The Flood Warning is cancelled for
  The Big Sioux River above Hawarden.
* At 09AM Sunday the stage was 20.33 feet.
* Flood stage is 20.50 feet.
* Recent activity...The river fell below flood stage at Sunday 
  September 30.
* Forecast...The river will continue to fall to 19.7 feet by 7 AM 
  Monday.
* At stages near 20.5 feet...Agricultural flooding begins on the 
  South Dakota side of the river. 

&&
 
LAT...LON 4308 9654 4308 9641 4302 9646 4291 9649
          4291 9658

$$

IAC149-SDC127-011949-
/O.CON.KFSD.FL.W.0200.000000T0000Z-181003T0000Z/
/AKRI4.3.ER.180921T0024Z.180923T2000Z.181002T0000Z.NO/
1050 AM CDT Sun Sep 30 2018

The Flood Warning continues for
  The Big Sioux River At Akron.
* until Tuesday evening.
* At 10AM Sunday the stage was 17.13 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Flood stage is 16.00 feet.
* Forecast...The river will continue to fall to below flood stage by 
  Monday October 01.
* At stages near 17.0 feet...About 6500 acres of farm land are 
  flooded. 

&&
 
LAT...LON 4291 9658 4291 9649 4281 9654 4277 9659
          4278 9665

$$

IAC149-SDC127-011949-
/O.CON.KFSD.FL.W.0241.000000T0000Z-000000T0000Z/
/BSRS2.3.ER.180921T1300Z.180923T2315Z.000000T0000Z.UU/
1050 AM CDT Sun Sep 30 2018

The Flood Warning continues for
  The Big Sioux River near Richland.
* until further notice.
* At 10AM Sunday the stage was 1118.54 feet.
* Flood stage is 1117.00 feet.
* At stages near 1119 feet...Widespread flooding of crop and pasture 
  land begins. 

&&
 
LAT...LON 4278 9665 4277 9659 4273 9660 4268 9655
          4264 9661 4270 9666

$$

IAC041-059-011949-
/O.CON.KFSD.FL.W.0210.000000T0000Z-181002T2100Z/
/MIFI4.2.ER.180920T0753Z.180924T1215Z.181001T2100Z.NO/
1050 AM CDT Sun Sep 30 2018

The Flood Warning continues for
  The Little Sioux River near Milford.
* until Tuesday afternoon.
* At 09AM Sunday the stage was 12.93 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Flood stage is 12.00 feet.
* Forecast...The river will continue to fall to below flood stage by 
  Monday October 01.
* At stages near 12.0 feet...Minor flooding of low lying agricultural
  lands begins, and water reaches the road on 190th Avenue near 240th 
  Street. 

&&
 
LAT...LON 4341 9527 4341 9521 4334 9520 4331 9515
          4321 9517 4321 9528 4330 9525

$$

IAC041-011949-
/O.CON.KFSD.FL.W.0211.000000T0000Z-181005T0300Z/
/SPWI4.3.ER.180920T0758Z.180921T1200Z.181004T0300Z.NO/
1050 AM CDT Sun Sep 30 2018

The Flood Warning continues for
  The Little Sioux River at Spencer.
* until Thursday evening.
* At 09AM Sunday the stage was 11.71 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Flood stage is 10.00 feet.
* Forecast...The river will continue to fall to below flood stage by 
  Wednesday October 03.
* At stages near 10.0 feet...the right bank overflows and minor flooding
  of the Spencer city park and rural agricultural areas begins.  
  
&&
 
LAT...LON 4321 9528 4321 9517 4314 9503 4299 9503
          4302 9510 4310 9511 4314 9523

$$

IAC021-041-011949-
/O.CON.KFSD.FL.W.0212.000000T0000Z-181005T0000Z/
/LNNI4.3.ER.180920T1206Z.180923T0300Z.181004T0000Z.NR/
1050 AM CDT Sun Sep 30 2018

The Flood Warning continues for
  The Little Sioux River At Linn Grove.
* until Thursday evening.
* At 10AM Sunday the stage was 19.19 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Flood stage is 18.00 feet.
* Forecast...The river will rise to 19.2 feet by Sunday September 30.
* At stages near 18.5 feet...The city park in Sioux Rapids is 
  flooded. 

&&
 
LAT...LON 4302 9510 4299 9503 4287 9512 4288 9536
          4296 9543 4293 9520

$$

IAC035-011949-
/O.EXT.KFSD.FL.W.0214.000000T0000Z-181003T0300Z/
/CHKI4.3.ER.180920T1550Z.180921T1600Z.181002T0300Z.NR/
1050 AM CDT Sun Sep 30 2018

The Flood Warning continues for
  The Little Sioux River At Cherokee.
* until Tuesday evening.
* At 09AM Sunday the stage was 18.34 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Flood stage is 17.00 feet.
* Forecast...The river will continue to fall to below flood stage by 
  Monday October 01.
* At stages near 18.0 feet...Cherokee city park begins to flood on 
  the south bank of the river. 

&&
 
LAT...LON 4296 9543 4291 9539 4265 9557 4256 9569
          4256 9578 4270 9564

$$

&& 
Location  Flood    Latest Observed    Recent Observed
          Stage    Stage  Time        Crest  Time
 
MISSOURI RIVER
GRWS2      30.0     29.99 Sun 10 AM    30.5  Thu Sep 20
MRVN1      24.0     23.92 Sun 10 AM    24.3  Thu Sep 20
MRNN1      21.0     21.93 Sun 10 AM    22.2  Thu Sep 20
SPGS2      10.0     11.47 Sun 10 AM             

BIG SIOUX RIVER
HWDI4      20.5     20.33 Sun 9 AM     31.6  Sat Sep 22
AKRI4      16.0     17.13 Sun 10 AM    22.2  Sun Sep 23
BSRS2    1117.0   1118.54 Sun 10 AM  1123.2  Sun Sep 23

LITTLE SIOUX RIVER
MIFI4      12.0     12.93 Sun 9 AM     16.0  Mon Sep 24
SPWI4      10.0     11.71 Sun 9 AM     16.6  Fri Sep 21
LNNI4      18.0     19.19 Sun 10 AM    23.9  Sat Sep 22
CHKI4      17.0     18.34 Sun 9 AM     27.0  Fri Sep 21

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 Sep 28, 5:49 AM CDT, 3 hours 49 minutes earlier.

Area forecast discussion, Sep 28, 5:49 AM CDT, 3 hours 49 minutes before
Area Forecast Discussion
National Weather Service Sioux Falls SD
549 AM CDT Fri Sep 28 2018

.SHORT TERM...(Today and Tonight)
Issued at 334 AM CDT Fri Sep 28 2018

Drier air has worked into the region from the north, keeping the
forecast area dry this morning, with the exception of a few likely
sprinkles. Frontogenetic band of light rain has set up south of the
Missouri River in Nebraska, further south than models suggest.
Expect this band to remain south of the forecast area, and therefore
have significantly reduced pops across the forecast area. Will like
isolated light rain showers or sprinkles in the forecast for the
counties closest to the Missouri through mid morning, but overall
threat for showers continues to diminish.

Mostly cloudy skies this morning will gradually clear from north to
south through the day. Northwest winds will generally be less than
15 mph, with a few higher gusts to 25 mph possible, mainly north of
I-90. With a cool airmass in place, temperatures will struggle to
warm much. Highs are only expected in the 50s despite sunshine
returning in the afternoon.

Winds will turn light this evening, eventually shifting to the east
or southeast. With clear skies and a dry airmass, temperatures will
fall off fairly quickly into the early morning hours. But late
tonight, warm air advection will rebound, along with increasing
clouds from the west. Expect lows in the mid 30s to near 40, with
readings perhaps warming late tonight before sunrise. The big
question will be whether temperatures will be cold enough for a long
enough duration for frost to become an issue. The best potential for
frost will be east of I-29 where lows are expected to be as cold as
34 or 35 degrees, however with possibly warming temperatures late
and increasing clouds, do not have enough confidence that we will
see enough frost for an advisory. Will hold off on any headlines at
this time.

.LONG TERM...(Saturday through Thursday)
Issued at 334 AM CDT Fri Sep 28 2018

The aforementioned warm air advection will continue to usher in mid
and high clouds across the area on Saturday morning. Surface low
pressure deepens over the central high Plains in the afternoon,
pushing a surface warm front north of the I-70 corridor, and further
north into the I-80 corridor on Sunday. Expect enough broad lift and
forcing for isolated showers or sprinkles Saturday afternoon, mainly
east of the James.

A second round of isolated showers or sprinkles is possible on
Sunday across the entire forecast area with a subtle mid level wave
tracking through the northern forecast area. With the front lifting
northward, chances for showers increase across northwest Iowa Sunday
afternoon and evening. By Sunday night, another shortwave tracks
east through the northern Plains, allowing scattered showers across
the forecast area overnight into Monday morning. Temperatures on
Saturday and Sunday remain below normal with highs in the 50s, but
overnight lows in the 40s will hold off the threat of frost.

Active weather pattern continues mid to late week with southwest
flow aloft directing a series of waves into the central and northern
Plains. With a lot of uncertainty in the track of these waves,
confidence in the timing of pops remains low. Expect a break on
Monday night, but isolated to scattered pops can be expected in the
forecast area nearly each period Tuesday through Thursday night. A
warming trend returns Tuesday and Wednesday with highs in the 60s to
mid 70s, but fall back into the 50s late week.

&&

.AVIATION...(For the 12Z TAFS through 12Z Saturday morning)
Issued at 547 AM CDT Fri Sep 28 2018

VFR conditions expected through the TAF period. Very light
rain/sprinkles along the Missouri River corridor this morning
should primarily remain south of KSUX.

&&

.FSD WATCHES/WARNINGS/ADVISORIES...
SD...None.
MN...None.
IA...None.
NE...None.
&&

SHORT TERM...
LONG TERM...
AVIATION...JM
Hazardous weather outlook, Sep 28, 4:08 AM CDT, 5 hours 30 minutes before
Hazardous Weather Outlook
National Weather Service Sioux Falls SD
408 AM CDT Fri Sep 28 2018

IAZ003-012>014-020>022-031-032-NEZ014-SDZ071-290915-
Dickinson-Sioux-O'Brien-Clay IA-Plymouth-Cherokee-Buena Vista-
Woodbury-Ida-Dakota-Union-
408 AM CDT Fri Sep 28 2018

This Hazardous Weather Outlook is for portions of northwest Iowa,
west central Iowa, northeast Nebraska, and southeast South
Dakota.

.DAY ONE...Today and Tonight

Flooding continues along primarily the Little Sioux and lower Big
Sioux Rivers. While river levels are expected to continue to fall through
the week, impacts from flooding will continue to be felt,
including the potential for road closures.

Cool temperatures late tonight will bring the potential for patchy
frost.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

IAZ001-NEZ013-SDZ038-039-050-052>070-290915-
Lyon IA-Dixon-Beadle-Kingsbury-Gregory-Jerauld-Sanborn-Miner-Lake-
Moody-Brule-Aurora-Davison-Hanson-McCook-Minnehaha-Charles Mix-
Douglas-Hutchinson-Turner-Lincoln SD-Bon Homme-Yankton-Clay SD-
408 AM CDT Fri Sep 28 2018

This Hazardous Weather Outlook is for portions of northwest Iowa,
northeast Nebraska, central South Dakota, east central South
Dakota, south central South Dakota, and southeast South Dakota.

.DAY ONE...Today and Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

IAZ002-MNZ071-072-080-081-089-090-097-098-SDZ040-290915-
Osceola-Lincoln MN-Lyon MN-Murray-Cottonwood-Nobles-Jackson-
Pipestone-Rock-Brookings-
408 AM CDT Fri Sep 28 2018

This Hazardous Weather Outlook is for portions of northwest Iowa,
southwest Minnesota, and east central South Dakota.

.DAY ONE...Today and Tonight

Cool temperatures late tonight will bring the potential for patchy
frost.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 28, 12:05 PM CDTFrost AdvisoryFSDBrookings19 hr

Nearby

River Flood Warnings in South Dakota, 2018River Flood Warnings in Nebraska, 2018Every river flood warning in 2018

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.