Alert archive / South Dakota / Flash Flood Warnings in 2005
Flash Flood Warning 13, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this flash flood warning at Jun 4, 2005, 11:55 PM CDT for Lincoln County, Union County, South Dakota; Lyon County, Sioux County, Iowa. 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 outline as issued.
The facts
- Issued
- Jun 4, 2005, 11:55 PM CDT (04:55 UTC)
- Expired
- Jun 5, 2005, 3:00 AM CDT
- In force
- 3 hr
- Issued by
- NWS Sioux Falls, SD
- Area
- Counties, with a storm outline in the text
Counties Lyon County, IA, Sioux County, IA, Lincoln County, SD, Union County, SD
The radar
The Sioux Falls radar (KFSD), 43 km from the middle of the area, began a volume at 04:55 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
Omaha, NE (KOAX), launched 00:00Z, 4.9 hours before the alert went out and 213 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
- 1467 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 1297 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 21 m²/s²
- 0-3 km storm-relative helicity
- 156 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 6.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS53 KFSD 050458 FFWFSD IAC119-167-SDC083-127-050800- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 1155 PM CDT SAT JUN 4 2005 THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A * FLASH FLOOD WARNING FOR... LYON COUNTY IN NORTHWEST IOWA SIOUX COUNTY IN NORTHWEST IOWA LINCOLN COUNTY IN SOUTHEAST SOUTH DAKOTA UNION COUNTY IN SOUTHEAST SOUTH DAKOTA * UNTIL 300 AM CDT * AT 1155 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED LIKELY FLASH FLOODING FROM THUNDERSTORMS ALONG A LINE EXTENDING FROM 5 MILES NORTH OF CANTON TO 20 MILES SOUTH OF HAWARDEN...OR ALONG A LINE EXTENDING FROM CANTON TO 15 MILES NORTH OF SIOUX CITY...MOVING NORTHEAST AT 20 MPH. ADDITIONAL RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE LIKELY IN THE WARNED AREA THROUGH 3 AM CDT AS MORE THUNDERSTORMS MOVE NORTHEAST OVER THE AREA. EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING. LAT...LON 4338 9684 4275 9679 4321 9600 4345 9604 $$ RSR
2 follow-up statements
000 WGUS73 KFSD 050709 FFSFSD FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 208 AM CDT SUN JUN 5 2005 IAC119-167-SDC083-127-050800- LYON IA-SIOUX IA-LINCOLN SD-UNION SD- 208 AM CDT SUN JUN 5 2005 ...A FLASH FLOOD WARNING CONTINUES UNTIL 300 AM CDT FOR UNION... LINCOLN...SIOUX AND LYON COUNTIES... AT 158 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT MOST OF THE HEAVY RAIN PRODUCING THUNDERSTORMS HAD MOVED NORTH INTO SOUTHWEST MINNESOTA. HOWEVER...ANOTHER CLUSTER OF SHOWERS AND THUNDERSTORMS FROM AKRON...TO VERMILLION...TO VIBORG IS EXPECTED TO MOVE NORTHEAST INTO THE AREA BETWEEN 200 AM AND 300 AM. LAW ENFORCEMENT IN SIOUX COUNTY REPORTED THAT MOST CREEKS AROUND ROCK VALLEY WERE BANKFULL OR NEAR BANKFULL AND STILL RISING. LOW LYING AREAS AROUND HAWARDEN WERE ALSO FLOODED. AT 1210 AM...WATER WAS ALSO RUNNING OVER RIVER ROAD IN NORTHEAST UNION COUNTY...JUST SOUTH OF COUNTY ROAD 13. EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...COUNTRY ROADS...POOR DRAINAGE URBAN AREAS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. LAT...LON 4338 9684 4275 9679 4321 9600 4345 9604 $$ CHAPMAN
000 WGUS73 KFSD 050809 FFSFSD FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 309 AM CDT SUN JUN 5 2005 IAC119-167-SDC083-127-050819- LYON IA-SIOUX IA-LINCOLN SD-UNION SD- 309 AM CDT SUN JUN 5 2005 ...THE FLASH FLOOD WARNING FOR UNION...LINCOLN...SIOUX AND LYON COUNTIES ALLOWED TO EXPIRE AT 300 AM CDT... WITH HEAVIER RAINFALL ENDED...AND RUNOFF DECREASING FROM EARLIER RAINFALL...THE FLASH FLOOD WARNING HAS BEEN ALLOWED TO EXPIRE. LAT...LON 4338 9684 4275 9679 4321 9600 4345 9604 $$ CHAPMAN
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 4, 7:48 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Union | 28 min |
| Jun 4, 8:29 PM CDT | Severe Thunderstorm Warning | FSD | Clay | 46 min |
| Jun 4, 9:15 PM CDT | Severe Thunderstorm Warning | FSD | Clay | 34 min |
| Jun 4, 9:25 PM CDT | Severe Thunderstorm Warning | FSD | Union | 50 min |
| Jun 4, 9:49 PM CDT | Tornado Warning | FSD | Union | 29 min |
| Jun 4, 10:08 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme | 52 min |
| Jun 4, 10:16 PM CDT | Flash Flood Warning | FSD | Yankton | 3 hr |
| Jun 4, 10:24 PM CDT | Flash Flood Warning | FSD | Clay | 3 hr |
| Jun 4, 10:55 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Yankton | 48 min |
| Jun 4, 11:01 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Lincoln, Union | 44 min |
| Jun 4, 11:38 PM CDT | Flash Flood Warning | FSD | Bon Homme | 3 hr |
| Jun 5, 5:15 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln | 39 min |
| Jun 4, 10:14 PM CDT | Severe Thunderstorm Warning | FSD | Sioux | 46 min |
| Jun 4, 10:24 PM CDT | Tornado Warning | FSD | Sioux | 51 min |
| Jun 4, 11:05 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 20 min |
| Jun 5, 12:02 AM CDT | Severe Thunderstorm Warning | FSD | Sioux | 29 min |
Nearby
Flash Flood Warnings in South Dakota, 2005Flash Flood Warnings in Iowa, 2005Every flash flood warning in 2005
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.