Flash Flood Warning 14, NWS Sioux Falls, SD

Issued

Jun 14, 2014, 8:55 PM CDT (01:55 UTC)

Expired

Jun 15, 2014, 12:00 AM CDT

In force

3 hr

Issued by

NWS Sioux Falls, SD

Area

Storm-based polygon

Flood severity

None

Counties Lyon County, IA, Lincoln County, SD, Minnehaha County, SD

The Sioux Falls radar (KFSD), 14 km from the middle of the area, began a volume at 01:59 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.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

928 
WGUS53 KFSD 150155
FFWFSD
IAC119-SDC083-099-150500-
/O.NEW.KFSD.FF.W.0014.140615T0155Z-140615T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
855 PM CDT SAT JUN 14 2014

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN LINCOLN COUNTY IN SOUTHEAST SOUTH DAKOTA
  NORTHWESTERN LYON COUNTY IN NORTHWEST IOWA
  SOUTHEASTERN MINNEHAHA COUNTY IN SOUTHEAST SOUTH DAKOTA

* UNTIL MIDNIGHT CDT

* AT 849 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. 
  AFTER AROUND 2 INCHES OF RAINFALL REPORTED IN SOUTHEASTERN PARTS
  OF SIOUX FALLS...ANOTHER PERIOD OF HEAVY RAINFALL WILL SPREAD INTO
  SOUTHEAST SIOUX FALLS AND AREAS TO THE EAST TOWARD VALLEY SPRINGS
  AND ROWENA...WHERE ONE TO ONE AN A HALF INCHES OF RAIN WILL FALL
  IN A BRIEF TIME THROUGH 1030 PM.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  ROWENA AND VALLEY SPRINGS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

&&

LAT...LON 4360 9645 4342 9653 4347 9678 4355 9665
      4357 9659

$$

CHAPMAN

367 
WGUS73 KFSD 150257
FFSFSD

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
957 PM CDT SAT JUN 14 2014

IAC119-SDC083-099-150500-
/O.CON.KFSD.FF.W.0014.000000T0000Z-140615T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LYON IA-MINNEHAHA SD-LINCOLN SD-
957 PM CDT SAT JUN 14 2014

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR NORTHERN LINCOLN...
SOUTHEASTERN MINNEHAHA AND NORTHWESTERN LYON COUNTIES UNTIL MIDNIGHT
CDT...

AT 945 PM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED
WATER OVER 262ND STREET ABOUT A MILE WEST OF VALLEY SPRINGS. 
THUNDERSTORMS WITH HEAVY RAINFALL CONTINUED ACROSS THE WARNED AREA.
DOPPLER RADAR ESTIMATED AROUND 2 INCHES RAINFALL...THIS ON TOP OF
HEAVIER RAINFALL FROM EARLY MORNING.

SLOW MOVING THUNDERSTORMS ARE PRODUCING VERY HEAVY RAINFALL IN THE
WARNED AREA. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH
FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING 
INCLUDE...ROWENA...VALLEY SPRINGS...AND BEAVER CREEK NATURE AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED...ACT QUICKLY. DO NOT
ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND. DO NOT
STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

&&

LAT...LON 4360 9645 4342 9653 4347 9678 4355 9665
      4357 9659

$$

CHAPMAN

Flash Flood Warnings in South Dakota, 2014Flash Flood Warnings in Iowa, 2014Every flash flood warning in 2014

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.