Alert archive / Minnesota / Flash Flood Warnings in 2006
Flash Flood Warning 4, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this flash flood warning at Apr 7, 2006, 5:43 AM CDT for Rock County, Minnesota. It was in force for 3 hr. 1 report 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
- Apr 7, 2006, 5:43 AM CDT (10:43 UTC)
- Expired
- Apr 7, 2006, 8:45 AM CDT
- In force
- 3 hr
- Issued by
- NWS Sioux Falls, SD
- Area
- Counties, with a storm outline in the text
County Rock County, MN
The radar
The Sioux Falls radar (KFSD), 41 km from the middle of the area, began a volume at 10:47 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 |
|---|---|---|---|
| Apr 7, 6:15 AM CDT | FLASH FLOOD | Luverne, MN | STORM SEWERS BACKED UP FLOODING ROADS |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 10.7 hours before the alert went out and 248 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 475 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 118 m²/s²
- 0-3 km storm-relative helicity
- 108 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 071043 FFWFSD MNC133-071345- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 543 AM CDT FRI APR 7 2006 THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A * FLASH FLOOD WARNING FOR... ROCK COUNTY IN SOUTHWEST MINNESOTA * UNTIL 845 AM CDT * AT 543 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED FLASH FLOODING LIKELY OVER MOST OF ROCK COUNTY AS OVERNIGHT RAINS HAVE EXCEEDED 2 INCHES IN MOST LOCATIONS. PLEASED USE EXTREME CAUTION WHILE TRAVELING THIS MORNING. 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. 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. FLOODING IS OCCURRING OR IS IMMINENT. 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 4353 9608 4384 9609 4384 9643 4351 9644 $$ 08
3 follow-up statements
000 WGUS73 KFSD 071124 FFSFSD FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 624 AM CDT FRI APR 7 2006 MNC133-071345- ROCK MN- 624 AM CDT FRI APR 7 2006 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 845 AM CDT FOR ROCK COUNTY... AT 615 AM CDT...THE PUBLIC REPORTED SEWER BACK UPS IN THE LUVERNE AREA. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES... DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM... EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND. LAT...LON 4353 9608 4384 9609 4384 9643 4351 9644 $$ 08
000 WGUS73 KFSD 071345 FFSFSD FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 844 AM CDT FRI APR 7 2006 MNC133-071354- ROCK MN- 844 AM CDT FRI APR 7 2006 ...THE FLASH FLOOD WARNING FOR ROCK COUNTY EXPIRES AT 845 AM CDT... RAINFALL RATES ACROSS THE AREA HAVE DECREASED ACROSS THE AREA... DIMINISHING THE THREAT OF FLASH FLOODING. RIVER FLOODING IS STILL EXPECTED HOWEVER...AND A FLOOD WARNING IS IN EFFECT FOR THE ROCK RIVER. LAT...LON 4353 9608 4384 9609 4384 9643 4351 9644 $$ JH
000 WGUS73 KFSD 071348 CCA FFSFSD FLASH FLOOD STATEMENT...CORRECTED TO REMOVE DUPLICATE TEXT NATIONAL WEATHER SERVICE SIOUX FALLS SD 844 AM CDT FRI APR 7 2006 MNC133-071354- ROCK MN- 844 AM CDT FRI APR 7 2006 ...THE FLASH FLOOD WARNING FOR ROCK COUNTY EXPIRES AT 845 AM CDT... RAINFALL RATES HAVE DECREASED ACROSS THE AREA...DIMINISHING THE THREAT OF FLASH FLOODING. RIVER FLOODING IS STILL EXPECTED HOWEVER...AND A FLOOD WARNING IS IN EFFECT FOR THE ROCK RIVER. LAT...LON 4353 9608 4384 9609 4384 9643 4351 9644 $$ JH
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 7, 4:39 AM CDT | Flash Flood Warning | FSD | Jackson, Nobles | 2 hr |
| Apr 7, 6:43 AM CDT | Flash Flood Warning | FSD | Jackson, Nobles | 3 hr |
Nearby
Flash Flood Warnings in Minnesota, 2006Every flash flood warning in 2006
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.