Flash Flood Warning 20, NWS Sioux Falls, SD

Issued

Jun 16, 2014, 11:07 AM CDT (16:07 UTC)

Expired

Jun 16, 2014, 7:46 PM CDT

In force

9 hr

Issued by

NWS Sioux Falls, SD

Area

Storm-based polygon

Flood severity

None

Counties Cherokee County, IA, Clay County, IA, Dickinson County, IA, Lyon County, IA, O'Brien County, IA, Osceola County, IA, Plymouth County, IA, Sioux County, IA, Woodbury County, IA

The Sioux Falls radar (KFSD), 119 km from the middle of the area, began a volume at 16:11 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.

472 
WGUS53 KFSD 161607
FFWFSD
IAC035-041-059-119-141-143-149-167-193-162200-
/O.NEW.KFSD.FF.W.0020.140616T1607Z-140616T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1107 AM CDT MON JUN 16 2014

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN SIOUX COUNTY IN NORTHWEST IOWA
  NORTHWESTERN CLAY COUNTY IN NORTHWEST IOWA
  O'BRIEN COUNTY IN NORTHWEST IOWA
  OSCEOLA COUNTY IN NORTHWEST IOWA
  PLYMOUTH COUNTY IN NORTHWEST IOWA
  SOUTHEASTERN LYON COUNTY IN NORTHWEST IOWA
  WESTERN CHEROKEE COUNTY IN NORTHWEST IOWA
  WESTERN DICKINSON COUNTY IN NORTHWEST IOWA
  WOODBURY COUNTY IN WEST CENTRAL IOWA

* UNTIL 500 PM CDT

* AT 1101 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR   
  INDICATED THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED 
  AREA. ADDITIONAL THUNDERSTORMS WILL CONTINUE TO MOVE OVER THE     
  WARNED AREA THROUGH THIS AFTERNOON. RAIN WILL BE FALLING ON 
  ALREADY SATURATED GROUND FROM THE HEAVY RAINS OVER THE 
  WEEKEND...SO ANY NEW RAINS WILL LEAD TO RAPID RUNOFF AND FLOODING 
  OF URBAN AREAS AS WELL AS SMALL CREEKS AND STREAMS.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...LE
  MARS...ORANGE CITY...SIOUX CITY...ALTON...ANTHON...ARCHER...
  ASHTON...BOYDEN...CLEGHORN...GRANVILLE...HARRIS...HARTLEY...
  HINTON...HORNICK...HOSPERS...KINGSLEY...LAKE PARK...LAWTON...LITTLE
  ROCK...MARCUS...MATLOCK...MAURICE...MELVIN...MERRILL...MOVILLE...
  OCHEYEDAN...PAULLINA...PIERSON...PRIMGHAR AND REMSEN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TOTAL ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 ARE POSSIBLE IN THE 
WARNED AREA. RAINFALL RATES OF 2 TO 4 INCHES PER HOUR COULD EXIST 
FOR 20 TO 30 MINUTES WHICH WILL LEAD TO RAPID RUNOFF CAUSING STREET 
FLOODING IN URBAN AREAS AND RAPID RISES ON SMALLER CREEKS AND 
STREAMS.

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.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

&&

LAT...LON 4223 9631 4240 9642 4247 9639 4249 9647
      4262 9652 4350 9584 4350 9511 4257 9575
      4222 9595

$$

GILLISPIE

875 
WGUS53 KFSD 162148
FFWFSD
IAC035-041-059-119-141-143-149-167-193-170100-
/O.EXT.KFSD.FF.W.0020.000000T0000Z-140617T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
448 PM CDT MON JUN 16 2014

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  EASTERN SIOUX COUNTY IN NORTHWEST IOWA
  NORTHWESTERN CLAY COUNTY IN NORTHWEST IOWA
  O'BRIEN COUNTY IN NORTHWEST IOWA
  OSCEOLA COUNTY IN NORTHWEST IOWA
  PLYMOUTH COUNTY IN NORTHWEST IOWA
  SOUTHEASTERN LYON COUNTY IN NORTHWEST IOWA
  WESTERN CHEROKEE COUNTY IN NORTHWEST IOWA
  WESTERN DICKINSON COUNTY IN NORTHWEST IOWA
  WOODBURY COUNTY IN WEST CENTRAL IOWA

* UNTIL 800 PM CDT

* AT 444 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. ONE 
  TO TWO INCHES OF RAIN HAS FALLEN EARLIER THIS AFTERNOON...AND AN 
  ADDITIONAL 1 TO 2 INCHES...WITH LOCALLY HIGHER AMOUNTS...IS LIKELY 
  INTO EARLY THIS EVENING.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...LE
  MARS...ORANGE CITY...SIOUX CITY...ALTON...ANTHON...ARCHER...
  ASHTON...BOYDEN...CLEGHORN...GRANVILLE...HARRIS...HARTLEY...
  HINTON...HORNICK...HOSPERS...KINGSLEY...LAKE PARK...LAWTON...LITTLE
  ROCK...MARCUS...MATLOCK...MAURICE...MELVIN...MERRILL...MOVILLE...
  OCHEYEDAN...PAULLINA...PIERSON...PRIMGHAR AND REMSEN.

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.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

&&

LAT...LON 4223 9631 4240 9642 4247 9639 4249 9647
      4262 9652 4350 9584 4350 9511 4257 9575
      4222 9595

$$

GILLISPIE

472 
WGUS73 KFSD 170046
FFSFSD

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
746 PM CDT MON JUN 16 2014

IAC035-041-059-119-141-143-149-167-193-170101-
/O.CAN.KFSD.FF.W.0020.000000T0000Z-140617T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SIOUX IA-PLYMOUTH IA-OSCEOLA IA-O'BRIEN IA-LYON IA-DICKINSON IA-
CHEROKEE IA-CLAY IA-WOODBURY IA-
746 PM CDT MON JUN 16 2014

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR WOODBURY...
NORTHWESTERN CLAY...WESTERN CHEROKEE...WESTERN DICKINSON...
SOUTHEASTERN LYON...O'BRIEN...OSCEOLA...PLYMOUTH AND EASTERN SIOUX
COUNTIES IS CANCELLED...

THIS FLASH FLOOD WARNING HAS BEEN REPLACED BY AN AREAL FLOOD 
WARNING. IN ADDITION...NUMEROUS RIVER FLOOD WARNINGS ARE IN EFFECT 
FOR GAGED RIVERS IN THE AREA. PLEASE REFER TO THE LATEST WARNINGS 
AND STATEMENTS.

IF FLOODING HAS BEEN OBSERVED...PLEASE REPORT IT TO YOUR LOCAL LAW 
ENFORCEMENT AGENCY.

LAT...LON 4223 9631 4240 9642 4247 9639 4249 9647
      4262 9652 4350 9584 4350 9511 4257 9575
      4222 9595

$$

GILLISPIE

Flash 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.