Alert archive / South Dakota / Flash Flood Warnings in 2004
Flash Flood Warning 16, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this flash flood warning at Jun 16, 2004, 10:37 AM CDT for Union County, South Dakota; Dakota County, Nebraska; Woodbury County, Iowa. It was in force for 113 min. 12 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 16, 2004, 10:37 AM CDT (15:37 UTC)
- Expired
- Jun 16, 2004, 12:30 PM CDT
- In force
- 113 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Counties, with a storm outline in the text
Counties Woodbury County, IA, Dakota County, NE, Union County, SD
The radar
The Omaha radar (KOAX), 115 km from the middle of the area, began a volume at 15:39 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 16, 11:00 AM CDT | FLASH FLOOD | North Sioux City, SD | STREETS FILLED WITH WATER AND SOME MANHOLE COVERS BLOWN OFF. FLOODING OCCURRED FROM 11 AM CDT TO 1130 AM CDT. |
| Jun 16, 11:00 AM CDT | FLASH FLOOD | North Sioux City, SD | STREETS FILLED WITH WATER AND SOME MANHOLE COVERS BLOWN OFF. FLOODING OCCURRED FROM 11 AM CDT TO 1130 AM CDT. |
| Jun 16, 11:00 AM CDT | FLASH FLOOD | Sioux City, IA | CARS STRANDED IN ROADS AND STREETS UNDERWATER ON HAMILTON BLVD |
| Jun 16, 11:00 AM CDT | FLASH FLOOD | Sioux City, IA | CARS STRANDED IN ROADS AND STREETS UNDERWATER ON HAMILTON BLVD |
| Jun 16, 11:00 AM CDT | FLASH FLOOD | Sioux City, IA | ONE BASEMENT REPORTED COLLAPSED. WIDE SPREAD STREET FLOODING WITH STALLED VEHICLES. DURATION OF EVENT WAS 1100 AM THROUGH 1130 AM CDT |
| Jun 16, 11:00 AM CDT | FLASH FLOOD | Sioux City, IA | ONE BASEMENT REPORTED COLLAPSED. WIDE SPREAD STREET FLOODING WITH STALLED VEHICLES. DURATION OF EVENT WAS 1100 AM THROUGH 1130 AM CDT |
| Jun 16, 11:00 AM CDT | FLASH FLOOD | South Sioux City, NE | WIDE SPREAD STREET FLOODING. VEHICLES STALLED. DURATION OF EVENT 11OO AM THROUGH NOON CDT. |
| Jun 16, 11:00 AM CDT | FLASH FLOOD | South Sioux City, NE | WIDE SPREAD STREET FLOODING. VEHICLES STALLED. DURATION OF EVENT 11OO AM THROUGH NOON CDT. |
| Jun 16, 11:28 AM CDT | FLASH FLOOD | Sioux City, IA | NUMEROUS STREETS FLOODED AND CARS STRANDED. |
| Jun 16, 11:28 AM CDT | FLASH FLOOD | Sioux City, IA | NUMEROUS STREETS FLOODED AND CARS STRANDED. |
| Jun 16, 11:30 AM CDT | HEAVY RAIN 0 | Sioux City, IA | 1.00 OF RAIN IS 30 MINUTES SOUTHEAST SIDE OF TOWN |
| Jun 16, 11:30 AM CDT | HEAVY RAIN 0 | Sioux City, IA | 1.00 OF RAIN IS 30 MINUTES SOUTHEAST SIDE OF TOWN |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 3.6 hours before the alert went out and 115 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
- 338 J/kg
- Mixed-layer CIN
- -410 J/kg
- Mixed-layer LCL
- 1794 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- -26 m²/s²
- 0-3 km storm-relative helicity
- 71 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS53 KFSD 161539
FFWFSD
IAC193-NEC043-SDC127-161730-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1037 AM CDT WED JUN 16 2004
THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
DAKOTA COUNTY IN NORTHEAST NEBRASKA
WOODBURY COUNTY IN NORTHWEST IOWA
UNION COUNTY IN SOUTHEAST SOUTH DAKOTA
* UNTIL 1230 PM CDT
* AT 1034 AM CDT...FLASH FLOODING WAS REPORTED FROM THUNDERSTORMS
ALONG A LINE EXTENDING FROM NORTH SIOUX CITY TO 6 MILES SOUTH OF
SALIX...MOVING EAST AT 20 MPH.
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.
PRECIPITATION AMOUNTS EXCEEDING 2 INCHES HAVE FALLEN OVER ALREADY
SATURATED SOIL. RUNOFF HAS CAUSED IN BANK RISES ON ELK CREEK.
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.
LAT...LON 4226 9605 4228 9640 4229 9663 4256 9662
4256 9575 4221 9572
$$
DEMORIN/PS2 follow-up statements
000
WGUS73 KFSD 161635
FFSFSD
IAC193-NEC043-SDC127-161730-
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1130 AM CDT WED JUN 16 2004
...A FLASH FLOOD WARNING CONTINUES UNTIL 1230 PM CDT FOR UNION...
DAKOTA AND WOODBURY COUNTIES...
AT 1126 AM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED URBAN
FLOODING AFFECTING MANY STREETS IN SIOUX CITY. OVER SOUTHEAST SIOUX
CITY A RETIRED NATIONAL WEATHER SERVICE EMPLOYEE REPORTED 1.54
INCHES OF RAINFALL BETWEEN 900 AM AND 1130 AM THIS MORNING RESULTING
IN AREAS OF STANDING WATER.
THUNDERSTORMS PRODUCING FLASH FLOODING ARE CONTINUING ACROSS THE
AREA COVERED BY THIS WARNING. THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 7 MILES NORTH OF LAWTON TO 10 MILES SOUTHWEST OF
ANTHON...OR ALONG A LINE EXTENDING FROM 13 MILES NORTHEAST OF SIOUX
CITY TO 25 MILES WEST OF IDA GROVE...MOVING EAST AT 20 MPH.
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.
FLOODING IS OCCURRING. MOST FLOOD RELATED DEATHS OCCUR IN
AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED
BRIDGES...DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A
FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER
MOVE UP TO HIGHER GROUND.
LAT...LON 4226 9605 4228 9640 4229 9663 4256 9662
4256 9575 4221 9572
$$
DEMORIN/PS000
WGUS73 KFSD 161729
FFSFSD
IAC193-NEC043-SDC127-161745-
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1226 PM CDT WED JUN 16 2004
...THE FLASH FLOOD WARNING FOR UNION...DAKOTA AND WOODBURY COUNTIES
WILL EXPIRE AT 1230 PM CDT...
THUNDERSTORMS THAT WERE PRODUCING VERY HEAVY RAINFALL HAVE DECREASED
IN INTENSITY AND MOVED BEYOND THE WARNED AREA. LIGHT RAINFALL IS
EXPECTED TO CONTINUE ACROSS THE WARNED AREA FOR THE NEXT FEW
HOURS...HOWEVER THE FLOOD THREAT HAS SIGNIFICANTLY DECREASED.
LAT...LON 4226 9605 4228 9640 4229 9663 4256 9662
4256 9575 4221 9572
$$
DEMORIN/PSThe office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 15, 7:52 PM CDT | Severe Thunderstorm Warning | FSD | Brookings, Kingsbury | 38 min |
| Jun 15, 8:25 PM CDT | Tornado Warning | FSD | Brookings | 50 min |
| Jun 16, 4:50 AM CDT | Flash Flood Warning | FSD | Minnehaha | 55 min |
| Jun 16, 5:44 AM CDT | Flash Flood Warning | FSD | Minnehaha | 46 min |
| Jun 16, 6:29 AM CDT | Flash Flood Warning | FSD | Minnehaha | 2 hr |
| Jun 16, 10:21 AM CDT | Severe Thunderstorm Warning | FSD | Ida | 24 min |
| Jun 16, 10:41 AM CDT | Severe Thunderstorm Warning | FSD | Ida | 34 min |
| Jun 16, 11:00 AM CDT | Flash Flood Warning | FSD | Ida | 2 hr |
| Jun 16, 12:58 PM CDT | Flash Flood Warning | FSD | Ida | 92 min |
Nearby
Flash Flood Warnings in South Dakota, 2004Flash Flood Warnings in Nebraska, 2004Flash Flood Warnings in Iowa, 2004Every flash flood warning in 2004
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.