Alert archive / South Dakota / Flash Flood Warnings in 2004
Flash Flood Warning 25, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this flash flood warning at Aug 3, 2004, 11:28 AM CDT for Lincoln County, Minnehaha County, South Dakota; Rock County, Minnesota. It was in force for 92 min. 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
- Aug 3, 2004, 11:28 AM CDT (16:28 UTC)
- Expired
- Aug 3, 2004, 1:00 PM CDT
- In force
- 92 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Counties, with a storm outline in the text
Counties Rock County, MN, Lincoln County, SD, Minnehaha County, SD
The radar
The Sioux Falls radar (KFSD), 12 km from the middle of the area, began a volume at 16:32 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 |
|---|---|---|---|
| Aug 3, 12:04 PM CDT | FLASH FLOOD | Baltic, SD | LOW LAND FLOODING AROUND BALTIC SD |
| Aug 3, 12:04 PM CDT | FLASH FLOOD | Baltic, SD | LOW LAND FLOODING AROUND BALTIC SD |
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, 4.5 hours before the alert went out and 187 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
- 197 J/kg
- Mixed-layer CIN
- -333 J/kg
- Mixed-layer LCL
- 811 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 43 m²/s²
- 0-3 km storm-relative helicity
- 119 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS53 KFSD 031630 FFWFSD MNC133-SDC083-099-031800- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 1128 AM CDT TUE AUG 3 2004 THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A * FLASH FLOOD WARNING FOR... NORTHERN LINCOLN COUNTY IN SOUTHEAST SOUTH DAKOTA MINNEHAHA COUNTY IN SOUTHEAST SOUTH DAKOTA WESTERN ROCK COUNTY IN SOUTHWEST MINNESOTA * UNTIL 100 PM CDT * AT 1127 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED URBAN FLOODING POSSIBLE FROM TUNDERSTORM OVER MINNEHAHA AND NORTHERN LINCOLN COUNTUES IN SOUTH DAKOTA AND ROCK COUNTY IN MINNESOTA. 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. LAT...LON 4382 9712 4340 9691 4354 9632 4384 9644 $$ WB
1 follow-up statement
000 WGUS73 KFSD 031726 FFSFSD MNC133-SDC083-099-031745- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 1222 PM CDT TUE AUG 3 2004 ...FLASH FLOOD WARNING CANCELLED FOR... ...WESTERN ROCK COUNTY IN SOUTHWEST MINNESOTA... ...MINNEHAHA COUNTY IN SOUTHEAST SOUTH DAKOTA... ...NORTHERN LINCOLN COUNTY IN SOUTHEAST SOUTH DAKOTA... ....THUNDERSTORMS THAT PRODUCE THE HEAVY RAIN OVER THE AREA HAVE MOVED TO THE EAST...AND THE RAINFALL HAS DECREASED RAPIDLY. STANDING WATER WILL BE DRAINING AWAY SLOWLY BUT NO ADDITIONAL HEAVY RAIN IS EXPECTED. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. LAT...LON 4382 9625 4344 9667 4344 9688 4381 9705 $$ WB
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 8:08 PM CDT | Severe Thunderstorm Warning | FSD | Brule | 37 min |
| Aug 2, 8:11 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Jerauld | 34 min |
| Aug 2, 8:45 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Brule | 45 min |
| Aug 2, 9:39 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Douglas | 36 min |
| Aug 3, 8:02 AM CDT | Severe Thunderstorm Warning | FSD | Brule | 28 min |
| Aug 3, 8:28 AM CDT | Severe Thunderstorm Warning | FSD | Brule, Jerauld | 32 min |
| Aug 3, 8:59 AM CDT | Severe Thunderstorm Warning | FSD | Aurora | 31 min |
| Aug 3, 9:11 AM CDT | Severe Thunderstorm Warning | FSD | Jerauld, Sanborn | 34 min |
| Aug 3, 9:33 AM CDT | Severe Thunderstorm Warning | FSD | Davison | 27 min |
| Aug 3, 9:45 AM CDT | Severe Thunderstorm Warning | FSD | Miner, Sanborn | 45 min |
| Aug 3, 9:59 AM CDT | Severe Thunderstorm Warning | FSD | Davison, Hanson | 46 min |
| Aug 3, 10:15 AM CDT | Severe Thunderstorm Warning | FSD | McCook | 30 min |
| Aug 3, 10:30 AM CDT | Severe Thunderstorm Warning | FSD | Lake, Miner | 30 min |
| Aug 3, 10:37 AM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Minnehaha, Turner | 38 min |
| Aug 3, 10:44 AM CDT | Severe Thunderstorm Warning | FSD | McCook | 31 min |
| Aug 3, 11:01 AM CDT | Severe Thunderstorm Warning | FSD | Lake | 29 min |
| Aug 3, 11:12 AM CDT | Severe Thunderstorm Warning | FSD | Minnehaha | 33 min |
| Aug 3, 11:40 AM CDT | Severe Thunderstorm Warning | FSD | Moody | 35 min |
| Aug 3, 11:42 AM CDT | Severe Thunderstorm Warning | FSD | Minnehaha | 63 min |
| Aug 3, 12:12 PM CDT | Severe Thunderstorm Warning | FSD | Nobles | 48 min |
| Aug 3, 12:46 PM CDT | Severe Thunderstorm Warning | FSD | Jackson | 44 min |
| Aug 3, 12:57 PM CDT | Severe Thunderstorm Warning | FSD | Nobles | 18 min |
| Aug 3, 1:25 PM CDT | Severe Thunderstorm Warning | FSD | Jackson | 20 min |
| Aug 3, 1:45 PM CDT | Severe Thunderstorm Warning | FSD | Jackson | 30 min |
Nearby
Flash Flood Warnings in South Dakota, 2004Flash Flood Warnings in Minnesota, 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.