Alert archive / South Dakota / Flash Flood Warnings in 2011
Flash Flood Warning 7, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this flash flood warning at Jun 14, 2011, 1:41 PM CDT for Lyon County, Iowa; Rock County, Minnesota; Lincoln County, Minnehaha County, South Dakota. It was in force for 3 hr. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jun 14, 2011, 1:41 PM CDT (18:41 UTC)
- Expired
- Jun 14, 2011, 4:30 PM CDT
- In force
- 3 hr
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Flood severity
- None
Counties Lyon County, IA, Rock County, MN, Lincoln County, SD, Minnehaha County, SD
The radar
The Sioux Falls radar (KFSD), 43 km from the middle of the area, began a volume at 18:42 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 14, 2:35 PM CDT | FLASH FLOOD | 1 Wnw Valley Springs, SD | FLOODED ROAD ON 262ND STREET |
| Jun 14, 2:50 PM CDT | FLASH FLOOD | Luverne, MN | WATER IN BASEMENT. 2.50 INCHES OF RAIN. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Aberdeen, SD (KABR), launched 12:00Z, 6.7 hours before the alert went out and 228 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 1348 J/kg
- Mixed-layer CIN
- -42 J/kg
- Mixed-layer LCL
- 527 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 88 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
938
WGUS53 KFSD 141841
FFWFSD
IAC119-MNC133-SDC083-099-142130-
/O.NEW.KFSD.FF.W.0007.110614T1841Z-110614T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
141 PM CDT TUE JUN 14 2011
THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHEASTERN LINCOLN COUNTY IN SOUTHEAST SOUTH DAKOTA
NORTHWESTERN LYON COUNTY IN NORTHWEST IOWA
ROCK COUNTY IN SOUTHWEST MINNESOTA
SOUTHEASTERN MINNEHAHA COUNTY IN SOUTHEAST SOUTH DAKOTA
* UNTIL 430 PM CDT
* AT 129 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. ONE
INCH TO AN INCH AND A HALF OF RAIN HAVE ALREADY FALLEN IN THE
WARNED AREA IN A VERY SHORT PERIOD OF TIME. ANOTHER ONE OR TWO
INCHES OF RAINFALL ARE EXPECTED THROUGH 430 PM CDT.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
LUVERNE...ROCK RAPIDS...ALVORD...BEAVER CREEK...BLUE MOUNDS STATE
PARK...GARRETSON...HARDWICK...HILLS...LARCHWOOD...LESTER...
ROWENA...SHERMAN 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.
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.
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 4354 9606 4353 9605 4333 9604 4333 9667
4384 9645 4385 9614 4385 9605
$$
BUSS2 follow-up statements
576
WGUS73 KFSD 141945
FFSFSD
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
245 PM CDT TUE JUN 14 2011
IAC119-MNC133-SDC083-099-142130-
/O.CON.KFSD.FF.W.0007.000000T0000Z-110614T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LYON IA-ROCK MN-MINNEHAHA SD-LINCOLN SD-
245 PM CDT TUE JUN 14 2011
...FLASH FLOOD WARNING REMAINS IN EFFECT FOR EASTERN LINCOLN...
EASTERN MINNEHAHA...ROCK AND NORTHERN LYON COUNTIES UNTIL 430 PM
CDT...
AT 233 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA.
DOPPLER RADAR ESTIMATED ONE AND A HALF TO TWO INCHES OF RAIN
FELL IN A VERY SHORT PERIOD OF TIME. AT 235 PM LAW ENFORCEMENT
REPORTED 262ND STREET FLOODED 1 MILE WEST NORTHWEST OF VALLEY
SPRINGS.
SLOW MOVING THUNDERSTORMS ARE PRODUCING VERY HEAVY RAINFALL IN THE
WARNED AREA. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH
FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING
INCLUDE...LUVERNE...ROCK RAPIDS...ALVORD...BEAVER CREEK...BLUE MOUNDS
STATE PARK...GARRETSON...HARDWICK...HILLS...LARCHWOOD...LESTER...
PALISADES STATE PARK...ROWENA...SHERMAN AND VALLEY SPRINGS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLOODING OF SMALL CREEKS
AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS
AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW LYING
AREAS ARE ALSO SUBJECT TO FLOODING.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.
&&
LAT...LON 4354 9606 4353 9605 4333 9604 4333 9667
4384 9645 4385 9614 4385 9605
$$
BUSS704
WGUS73 KFSD 142131
FFSFSD
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
431 PM CDT TUE JUN 14 2011
IAC119-MNC133-SDC083-099-142145-
/O.EXP.KFSD.FF.W.0007.000000T0000Z-110614T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LYON IA-ROCK MN-MINNEHAHA SD-LINCOLN SD-
431 PM CDT TUE JUN 14 2011
...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR EASTERN LINCOLN...
EASTERN MINNEHAHA...ROCK AND NORTHERN LYON COUNTIES HAS BEEN ALLOWED
TO EXPIRE...
EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA AS THE
STRONGEST THUNDERSTORMS PUSH OFF TO THE EAST. STREAMS AND CREEKS IN
THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO RECEDE. IF
FLOODING HAS BEEN OBSERVED...PLEASE REPORT IT TO YOUR LOCAL LAW
ENFORCEMENT AGENCY.
LAT...LON 4354 9606 4353 9605 4333 9604 4333 9667
4384 9645 4385 9614 4385 9605
$$
MJFThe office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 14, 3:01 PM CDT | Flash Flood Warning | FSD | Dickinson, Lyon, Osceola | 3 hr |
| Jun 14, 9:21 AM CDT | Flash Flood Warning | FSD | Nobles, Rock | 2 hr |
| Jun 14, 11:24 AM CDT | Severe Thunderstorm Warning | FSD | Pipestone, Rock | 36 min |
| Jun 14, 1:19 PM CDT | Flash Flood Warning | FSD | Murray, Pipestone | 3 hr |
| Jun 14, 1:35 PM CDT | Flash Flood Warning | FSD | Cottonwood | 3 hr |
| Jun 14, 4:25 PM CDT | Flash Flood Warning | FSD | Pipestone, Rock | 3 hr |
| Jun 13, 7:39 PM CDT | River Flood Warning | FSD | Davison | 4 hr |
| Jun 14, 10:21 AM CDT | River Flood Warning | FSD | Brule | 69 days |
| Jun 14, 12:29 PM CDT | Flash Flood Warning | FSD | Lincoln, Minnehaha | 3 hr |
| Jun 14, 4:44 PM CDT | Severe Thunderstorm Warning | FSD | Gregory | 46 min |
Nearby
Flash Flood Warnings in South Dakota, 2011Flash Flood Warnings in Iowa, 2011Flash Flood Warnings in Minnesota, 2011Every flash 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.