Alert archive / South Dakota / Flash Flood Warnings in 2003

Flash Flood Warning 6, NWS Sioux Falls, SD

June 25, 2003Clay County, Lincoln County, Union County, South Dakota

NWS Sioux Falls, SD issued this flash flood warning at Jun 25, 2003, 12:15 AM CDT for Clay County, Lincoln County, Union County, South Dakota. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 25, 2003, 12:15 AM CDT (05:15 UTC)
Expired
Jun 25, 2003, 4:15 AM CDT
In force
4 hr
Issued by
NWS Sioux Falls, SD
Area
Counties, with a storm outline in the text

Counties Clay County, SD, Lincoln County, SD, Union County, SD

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 5.3 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.

Skew-T log-pSkew-T log-p diagram, Omaha, NE at 00:00Z on 2003-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3681 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, Omaha, NE at 00:00Z on 2003-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 37 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
3681 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
1413 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
167 m²/s²
Significant tornado parameter
1.1
Supercell composite
10.3

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KFSD 250517
FFWFSD
SDC027-083-127-250915-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1215 AM CDT WED JUN 25 2003

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN LINCOLN COUNTY IN SOUTHEAST SOUTH DAKOTA
  CLAY COUNTY IN SOUTHEAST SOUTH DAKOTA
  UNION COUNTY IN SOUTHEAST SOUTH DAKOTA

* UNTIL 415 AM CDT

* AT 1215 AM CDT...WEATHER SPOTTERS REPORTED AS MUCH AS FIVE INCHES 
OF RAIN HAD FALLEN OVER SOUTHERN CLAY COUNTY. RADAR ESTIMATES ALSO 
AGREE WITH THIS OVER THE WARNED COUNTIES.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. 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 4331 9655 4266 9663 4284 9716 4330 9679

$$

08
1 follow-up statement
000 
WGUS73 KFSD 250717
FFSFSD
SDC027-083-127-250915-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
217 AM CDT WED JUN 25 2003

...FLASH FLOOD WARNING CONTINUES UNTIL 415 AM FOR...

...SOUTHERN LINCOLN COUNTY IN SOUTHEAST SOUTH DAKOTA...
...CLAY COUNTY IN SOUTHEAST SOUTH DAKOTA...
...UNION COUNTY IN SOUTHEAST SOUTH DAKOTA...

AT 216 AM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED HEAVY RAINS 
CONTINUE OVER SOUTHERN LINCOLN...UNION AND EASTERN CLAY COUNTIES. 
RADAR ESTIMATES BETWEEN 2 AND 3 INCHES OF RAIN HAS FALLEN OVER THIS 
AREA DURING THE LAST 3 HOURS. LOCAL LAW ENFORCEMENT IN LINCOLN 
COUNTY REPORTS SOME COUNTIES ROADS AND HIGHWAY 11 ARE COVERED WITH 
WATER IN SOUTHERN LINCOLN COUNTY. RUNOFF THE HEAVY RAINS EALIER AND 
CURRENT RAINFALL WILL CONTINUE UNTIL 415 AM.  

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. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. 
MOVE TO HIGHER GROUND.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. 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.

$$

BOUSTEAD

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 24, 7:14 PM CDTTornado WarningFSDClay, Lincoln46 min
Jun 24, 7:18 PM CDTTornado WarningFSDKingsbury27 min
Jun 24, 7:35 PM CDTTornado WarningFSDCharles Mix, Douglas40 min
Jun 24, 7:40 PM CDTTornado WarningFSDKingsbury50 min
Jun 24, 7:43 PM CDTTornado WarningFSDTurner32 min
Jun 24, 7:45 PM CDTTornado WarningFSDGregory30 min
Jun 24, 7:51 PM CDTTornado WarningFSDLincoln54 min
Jun 24, 8:03 PM CDTSevere Thunderstorm WarningFSDAurora42 min
Jun 24, 8:05 PM CDTSevere Thunderstorm WarningFSDGregory40 min
Jun 24, 8:10 PM CDTTornado WarningFSDJerauld35 min
Jun 24, 8:15 PM CDTTornado WarningFSDTurner45 min
Jun 24, 8:16 PM CDTTornado WarningFSDCharles Mix, Douglas44 min
Jun 24, 8:20 PM CDTSevere Thunderstorm WarningFSDBeadle40 min
Jun 24, 8:20 PM CDTSevere Thunderstorm WarningFSDDavison55 min
Jun 24, 8:23 PM CDTSevere Thunderstorm WarningFSDMinnehaha37 min
Jun 24, 8:28 PM CDTFlash Flood WarningFSDCharles Mix, Douglas, Gregory4 hr
Jun 24, 8:29 PM CDTTornado WarningFSDKingsbury31 min
Jun 24, 8:31 PM CDTSevere Thunderstorm WarningFSDSanborn44 min
Jun 24, 8:35 PM CDTTornado WarningFSDClay25 min
Jun 24, 8:37 PM CDTSevere Thunderstorm WarningFSDMcCook38 min
Jun 24, 8:44 PM CDTTornado WarningFSDLincoln31 min
Jun 24, 8:44 PM CDTTornado WarningFSDBeadle46 min
Jun 24, 8:45 PM CDTSevere Thunderstorm WarningFSDAurora45 min
Jun 24, 8:49 PM CDTSevere Thunderstorm WarningFSDKingsbury41 min
Jun 24, 8:55 PM CDTSevere Thunderstorm WarningFSDMinnehaha50 min
Jun 24, 8:56 PM CDTTornado WarningFSDDouglas49 min
Jun 24, 8:58 PM CDTTornado WarningFSDLincoln, Turner47 min
Jun 24, 9:05 PM CDTSevere Thunderstorm WarningFSDBrule, Jerauld25 min
Jun 24, 9:14 PM CDTSevere Thunderstorm WarningFSDHanson, Hutchinson46 min
Jun 24, 9:15 PM CDTSevere Thunderstorm WarningFSDDavison45 min
Jun 24, 9:17 PM CDTSevere Thunderstorm WarningFSDMcCook43 min
Jun 24, 9:19 PM CDTSevere Thunderstorm WarningFSDBon Homme41 min
Jun 24, 9:30 PM CDTSevere Thunderstorm WarningFSDBeadle, Kingsbury30 min
Jun 24, 9:32 PM CDTTornado WarningFSDMcCook, Minnehaha43 min
Jun 24, 9:41 PM CDTSevere Thunderstorm WarningFSDCharles Mix34 min
Jun 24, 9:43 PM CDTTornado WarningFSDBeadle, Kingsbury32 min
Jun 24, 9:48 PM CDTSevere Thunderstorm WarningFSDYankton42 min
Jun 24, 9:51 PM CDTSevere Thunderstorm WarningFSDTurner39 min
Jun 24, 9:59 PM CDTSevere Thunderstorm WarningFSDBon Homme, Hutchinson31 min
Jun 24, 10:01 PM CDTSevere Thunderstorm WarningFSDMcCook29 min
Jun 24, 10:13 PM CDTSevere Thunderstorm WarningFSDClay47 min
Jun 24, 10:14 PM CDTTornado WarningFSDMinnehaha46 min
Jun 24, 10:28 PM CDTSevere Thunderstorm WarningFSDTurner32 min
Jun 24, 10:31 PM CDTTornado WarningFSDLake, Moody44 min
Jun 24, 10:34 PM CDTTornado WarningFSDTurner26 min
Jun 24, 10:38 PM CDTTornado WarningFSDLincoln52 min
Jun 24, 10:58 PM CDTSevere Thunderstorm WarningFSDMinnehaha32 min
Jun 24, 11:08 PM CDTSevere Thunderstorm WarningFSDBrookings37 min

Nearby

Flash Flood Warnings in South Dakota, 2003Every flash flood warning in 2003

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.