Alert archive / Minnesota / Flash Flood Warnings in 2004

Flash Flood Warning 26, NWS Sioux Falls, SD

August 16, 2004Murray County, Minnesota

NWS Sioux Falls, SD issued this flash flood warning at Aug 16, 2004, 2:38 AM CDT for Murray County, Minnesota. It was in force for 112 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 16, 2004, 2:38 AM CDT (07:38 UTC)
Expired: Aug 16, 2004, 4:30 AM CDT
In force: 112 min
Issued by: NWS Sioux Falls, SD
Area: Counties, with a storm outline in the text

County Murray County, MN

The radar

The Sioux Falls radar (KFSD), 101 km from the middle of the area, began a volume at 07:40 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

Minneapolis, MN (KMPX), launched 00:00Z, 7.6 hours before the alert went out and 186 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1523 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: 214 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KFSD 160738
FFWFSD
MNC101-160930-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
238 AM CDT MON AUG 16 2004

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN MURRAY COUNTY IN SOUTHWEST MINNESOTA

* UNTIL 430 AM CDT

* AT 235 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
FROM 3 TO 4 INCHES RAINFALL AS A RESULT OF A CLUSTER OF 
THUNDERSTORMS ACROSS NORTHEASTERN SECTIONS OF MURRAY COUNTY. THE 
HEAVIEST RAINFALL WAS LOCATED FROM AROUND LAKE SHETEK EASTWARD...TO 
NORTH OF DOVRAY AND CURRIE. ADDITIONAL THUNDERSTORMS WILL CONTINUE 
TO DEVELOP AND MOVE EAST AT 25 MPH THROUGH 330 AM...WITH UP TO 
ANOTHER HALF TO THREE QUARTERS OF AN INCH OF RAINFALL POSSIBLE. 

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. IT IS IMPORTANT TO 
KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH 
CAN BECOME KILLERS IN HEAVY RAINS. CAMPERS AND HIKERS SHOULD AVOID 
STREAMS OR CREEKS.

LAT...LON 4419 9589 4407 9587 4402 9547 4419 9547

$$

CHAPMAN

1 follow-up statement

000 
WGUS73 KFSD 160922
FFSFSD
MNC101-160930-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
419 AM CDT MON AUG 16 2004

...A FLASH FLOOD WARNING CONTINUES UNTIL 430 AM CDT FOR NORTHEASTERN 
MURRAY COUNTY...

AT 415 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
BETWEEN 3 AND 5 INCHES OF ESTIMATED RAINFALL FROM EARLIER 
THUNDERSTORMS FROM SOUTH OF GARVIN AND BALATON...THROUGH LAKE 
SHETEK...TO AROUND DOVRAY. 

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. BE ESPECIALLY CAUTIOUS AT NIGHT 
WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. 

IT IS IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS... 
RIVERS...OR CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS. CAMPERS 
AND HIKERS SHOULD AVOID STREAMS OR CREEKS.

LAT...LON 4419 9589 4407 9587 4402 9547 4419 9547

$$

CHAPMAN

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 16, 12:51 AM CDT	Severe Thunderstorm Warning	FSD	Cottonwood, Murray	24 min
Aug 16, 3:58 AM CDT	Severe Thunderstorm Warning	FSD	Lyon	17 min

Nearby

Flash Flood Warnings in Minnesota, 2004 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.