Alert archive / South Dakota / Flash Flood Warnings in 2007

Flash Flood Warning 21, NWS Aberdeen, SD

June 17, 20074 counties in South Dakota

NWS Aberdeen, SD issued this flash flood warning at Jun 17, 2007, 11:06 PM CDT for 4 counties in South Dakota. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 17, 2007, 11:06 PM CDT (04:06 UTC)
Expired
Jun 18, 2007, 2:00 AM CDT
In force
3 hr
Issued by
NWS Aberdeen, SD
Area
Whole counties

Counties Campbell County, SD, Edmunds County, SD, McPherson County, SD, Walworth County, SD

The radar

The Aberdeen radar (KABR), 96 km from the middle of the area, began a volume at 04:08 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 nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 4.1 hours before the alert went out and 124 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.

Skew-T log-pSkew-T log-p diagram, Aberdeen, SD at 00:00Z on 2007-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1834 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Aberdeen, SD at 00:00Z on 2007-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 115 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1834 J/kg
Mixed-layer CIN
-308 J/kg
Mixed-layer LCL
1665 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
115 m²/s²
0-3 km storm-relative helicity
201 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS53 KABR 180408
FFWABR
SDC021-045-089-129-180700-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ABERDEEN SD
1106 PM CDT SUN JUN 17 2007

THE NATIONAL WEATHER SERVICE IN ABERDEEN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN CAMPBELL COUNTY IN NORTH CENTRAL SOUTH DAKOTA...
  NORTHWESTERN EDMUNDS COUNTY IN NORTH CENTRAL SOUTH DAKOTA...
  WESTERN MCPHERSON COUNTY IN NORTH CENTRAL SOUTH DAKOTA...
  THIS INCLUDES THE CITY OF EUREKA...
  WALWORTH COUNTY IN NORTH CENTRAL SOUTH DAKOTA...
  THIS INCLUDES THE CITY OF SELBY...

* UNTIL 200 AM CDT

* AT 1059 PM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED FLASH    
  FLOODING FROM THUNDERSTORMS OVER THE WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO            
  GREENWAY AND ARTAS

LAW ENFORCEMENT HAS REPORTED FLOODING IN THE CITY OF EUREKA. 

ADDITIONAL RAINFALL AMOUNTS OF ONE HALF INCH ARE POSSIBLE IN THE 
WARNED AREA.

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

LAT...LON 4526 10026 4527 9973 4560 9959 4594 9938
      4594 9982 4548 10020

$$
ALBRECHT
2 follow-up statements
000 
WGUS73 KABR 180546
FFSABR

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
1246 AM CDT MON JUN 18 2007

SDC021-045-089-129-180700-
CAMPBELL SD-MCPHERSON SD-WALWORTH SD-EDMUNDS SD-
1246 AM CDT MON JUN 18 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 200 AM CDT FOR
NORTHWESTERN EDMUNDS...WALWORTH...WESTERN MCPHERSON AND EASTERN
CAMPBELL COUNTIES...

AT 1241 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A THUNDERSTORM PRODUCING FLASH FLOODING OVER THE WARNED
AREA.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO HILLSVIEW...
GREENWAY...EUREKA AND ARTAS

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. MOVE TO HIGHER GROUND.

LAT...LON 4526 10026 4527 9973 4560 9959 4594 9938
      4594 9982 4548 10020

$$
KEEFE
000 
WGUS73 KABR 180655
FFSABR

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
155 AM CDT MON JUN 18 2007

SDC021-045-089-129-180705-
CAMPBELL SD-MCPHERSON SD-WALWORTH SD-EDMUNDS SD-
155 AM CDT MON JUN 18 2007

...THE FLASH FLOOD WARNING WILL EXPIRE AT 200 AM CDT(100 AM MDT) FOR
NORTHWESTERN EDMUNDS...WALWORTH...WESTERN MCPHERSON AND EASTERN
CAMPBELL COUNTIES...

AT 153 AM CDT...RECENT RADAR DATA...AS WELL AS INFORMATION RELAYED TO
THE NATIONAL WEATHER SERVICE INDICATE THAT THE THREAT OF FLASH
FLOODING HAS ENDED OVER THE WARNED AREA. THEREFORE...THE FLASH FLOOD
WARNING HAS BEEN ALLOWED TO EXPIRE.

LAT...LON 4526 10026 4527 9973 4560 9959 4594 9938
      4594 9982 4548 10020

$$
KEEFE

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 17, 7:48 PM CDTSevere Thunderstorm WarningABRDewey, Potter, Stanley, Sully57 min
Jun 17, 7:56 PM CDTSevere Thunderstorm WarningABRDewey, Potter, Walworth64 min
Jun 17, 8:28 PM CDTSevere Thunderstorm WarningABRCampbell, Corson, McPherson, Walworth62 min
Jun 17, 8:41 PM CDTSevere Thunderstorm WarningABRPotter, Sully34 min
Jun 17, 8:44 PM CDTTornado WarningABREdmunds, McPherson, Walworth46 min
Jun 17, 9:03 PM CDTTornado WarningABRWalworth27 min
Jun 17, 9:07 PM CDTTornado WarningABRMcPherson38 min
Jun 17, 9:18 PM CDTSevere Thunderstorm WarningABRDewey, Stanley, Sully23 min
Jun 17, 9:28 PM CDTTornado WarningABRMcPherson17 min
Jun 17, 9:53 PM CDTSevere Thunderstorm WarningABRBrown, Edmunds, McPherson52 min
Jun 17, 10:26 PM CDTSevere Thunderstorm WarningABRBrown34 min
Jun 18, 3:35 AM CDTWind AdvisoryABRBrown, Campbell, Corson, Day, Dewey, Edmunds and 7 more17 hr

Nearby

Flash Flood Warnings in South Dakota, 2007Every flash flood warning in 2007

Sources

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.