Alert archive / South Dakota / Flash Flood Warnings in 2011
Flash Flood Warning 4, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this flash flood warning at Jun 14, 2011, 12:29 PM CDT for Lincoln County, Minnehaha County, South Dakota. It was in force for 3 hr. 3 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, 12:29 PM CDT (17:29 UTC)
- Expired
- Jun 14, 2011, 3:30 PM CDT
- In force
- 3 hr
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Flood severity
- None
Counties Lincoln County, SD, Minnehaha County, SD
The radar
The Sioux Falls radar (KFSD), 14 km from the middle of the area, began a volume at 17:30 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, 12:49 PM CDT | FLASH FLOOD | 2 S Sioux Falls, SD | URBAN FLOODING AT 33RD AND MINNESOTA. WATER POOLED HEAVILY IN INTERSECTION. |
| Jun 14, 1:05 PM CDT | FLASH FLOOD | 3 Se Sioux Falls, SD | WATER OVER CURB AT 49TH AND SOUTHEASTERN |
| Jun 14, 1:07 PM CDT | FLASH FLOOD | 4 Nne Sioux Falls, SD | CORNER OF POTSDAM AND LEWIS AVE CARS STRANDED ON FLOODED ROAD |
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, 5.5 hours before the alert went out and 198 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.
672
WGUS53 KFSD 141729
FFWFSD
SDC083-099-142030-
/O.NEW.KFSD.FF.W.0004.110614T1729Z-110614T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1229 PM CDT TUE JUN 14 2011
THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
EASTERN MINNEHAHA COUNTY IN SOUTHEAST SOUTH DAKOTA
NORTHERN LINCOLN COUNTY IN SOUTHEAST SOUTH DAKOTA
* UNTIL 330 PM CDT
* AT 1221 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA.
UP TO AN INCH OF RAIN HAS FALLEN OVER THE WARNED AREA IN A VERY
SHORT PERIOD OF TIME...WITH RAINFALL RATES UP TO AN INCH PER
HOUR. AN ADDITIONAL INCH OR TWO OF RAIN IS EXPECTED FALL OVER THE
WARNED AREA.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...SIOUX
FALLS...BRANDON...HARRISBURG...PALISADES STATE PARK AND TEA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.
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 4384 9645 4382 9645 4333 9667 4337 9690
4385 9668
$$
BUSS2 follow-up statements
190
WGUS73 KFSD 141759
FFSFSD
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1259 PM CDT TUE JUN 14 2011
SDC083-099-142030-
/O.CON.KFSD.FF.W.0004.000000T0000Z-110614T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MINNEHAHA SD-LINCOLN SD-
1259 PM CDT TUE JUN 14 2011
...FLASH FLOOD WARNING REMAINS IN EFFECT FOR NORTHERN LINCOLN AND
EASTERN MINNEHAHA COUNTIES UNTIL 330 PM CDT...
AT 1251 PM CDT...VERY HEAVY RAINFALL CONTINUED TO FALL ACROSS THE
WARNED AREA. DOPPLER RADAR ESTIMATED AN INCH TO A INCH AND A HALF
WHICH OCCURRED IN A VERY SHORT PERIOD OF TIME. AT 1249 PM THE PUBLIC
REPORTED URBAN FLOODING AT 33RD AND MINNESOTA...WHERE WATER
POOLED HEAVILY IN THE INTERSECTION.
SLOW MOVING THUNDERSTORMS ARE PRODUCING VERY HEAVY RAINFALL IN THE
WARNED AREA. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH
FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING
INCLUDE...SIOUX FALLS...BRANDON...GARRETSON...HARRISBURG...PALISADES
STATE PARK AND TEA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE MINOR FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.
&&
LAT...LON 4384 9645 4382 9645 4333 9667 4337 9690
4385 9668
$$
BUSS!922
WGUS73 KFSD 142021
FFSFSD
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
321 PM CDT TUE JUN 14 2011
SDC083-099-142037-
/O.EXP.KFSD.FF.W.0004.000000T0000Z-110614T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MINNEHAHA SD-LINCOLN SD-
321 PM CDT TUE JUN 14 2011
...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR NORTHERN LINCOLN
AND EASTERN MINNEHAHA COUNTIES WILL BE ALLOWED TO EXPIRE AT 330 PM
CDT...
EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO
RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN OBSERVED...
PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.
LAT...LON 4384 9645 4382 9645 4333 9667 4337 9690
4385 9668
$$
BUSSThe office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| 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, 1:19 PM CDT | Flash Flood Warning | FSD | Moody | 3 hr |
| Jun 14, 1:41 PM CDT | Flash Flood Warning | FSD | Lincoln, Minnehaha | 3 hr |
| Jun 14, 4:25 PM CDT | Flash Flood Warning | FSD | Minnehaha, Moody | 3 hr |
| Jun 14, 4:44 PM CDT | Severe Thunderstorm Warning | FSD | Gregory | 46 min |
Nearby
Flash Flood Warnings in South Dakota, 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.