Alert archive / Minnesota / Flash Flood Warnings in 2004

Flash Flood Warning 1, NWS Twin Cities, MN

May 29, 20044 counties in Minnesota

NWS Twin Cities, MN issued this flash flood warning at May 29, 2004, 10:40 PM CDT for 4 counties in Minnesota. It was in force for 6 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
May 29, 2004, 10:40 PM CDT (03:40 UTC)
Expired
May 30, 2004, 4:30 AM CDT
In force
6 hr
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

Counties Chippewa County, MN, Redwood County, MN, Renville County, MN, Yellow Medicine County, MN

The radar

The Minneapolis radar (KMPX), 120 km from the middle of the area, began a volume at 03:42 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, 3.7 hours before the alert went out and 117 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-pSkew-T log-p diagram, Minneapolis, MN at 00:00Z on 2004-05-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 2004-05-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 401 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
543 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
401 m²/s²
0-3 km storm-relative helicity
418 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KMPX 300341
FFWMPX
MNC023-127-129-173-300930-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1040 PM CDT SAT MAY 29 2004

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  RENVILLE COUNTY IN CENTRAL MINNESOTA
  REDWOOD COUNTY IN SOUTHWEST MINNESOTA
  CHIPPEWA COUNTY IN WEST CENTRAL MINNESOTA
  YELLOW MEDICINE COUNTY IN WEST CENTRAL MINNESOTA
  
* UNTIL 430 AM CDT

* AT 1026 PM CDT...RADAR INDICATED THUNDERSTORMS WITH TORRENTIAL RAIN
  OVER THE WARNED AREA. RADAR INDICATES THAT 1.5 TO 2 INCHES OF RAIN 
  HAS ALREADY FALLEN OVER WESTERN REDWOOD...SOUTHEAST YELLOW         
  MEDICINE...WESTERN RENVILLE...AND WESTERN CHIPPEWA COUNTIES. MORE  
  STRONG THUNDERSTORMS WERE MOVING INTO THE AREA FROM SOUTHWEST      
  MINNESOTA...WITH RAINFALL RATES OF 1 TO 2 INCHES PER HOUR. HEAVY   
  RAINS LAST NIGHT SATURATED THE GROUND...AND MUCH OF THIS CURRENT   
  RAINFALL WILL RUN OFF INTO CREEKS AND LOW LYING AREAS...CAUSING    
  RAPID RISES IN FAST RESPONSE CREEKS AND STREAMS. LOCALIZED         
  RAINFALL AMOUNTS TO 4 OR 5 INCHES ARE POSSIBLE THROUGH 430 AM.

* THUNDERSTORMS ARE CONTINUOUSLY REDEVELOPING OVER THE WARNED AREA...
  RESULTING IN EXCESSIVE RAINFALL.

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 4483 9464 4458 9480 4433 9500 4429 9551
          4514 9568 4513 9529 4486 9524 4485 9495

$$

BINAU
1 follow-up statement
000 
WGUS73 KMPX 300609
FFSMPX
MNC023-127-129-173-300930-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1259 AM CDT SUN MAY 30 2004

...A FLASH FLOOD WARNING CONTINUES UNTIL 430 AM CDT FOR REDWOOD...
RENVILLE...YELLOW MEDICINE AND CHIPPEWA COUNTIES...

NATIONAL WEATHER SERVICE DOPPLER RADAR ESTIMATED THAT 3 TO 4 INCHES 
OF RAIN HAS FALLEN FROM WALNUT GROVE TO REDWOOD FALLS TO HECTOR...IN 
THE 3 HOURS BETWEEN 10 PM AND 1 AM. THE RENVILLE COUNTY SHERIFF 
REPORTED RAINFALL ACCUMULATIONS JUST OVER 4 INCHES IN FAIRFAX. 

THE RENVILLE COUNTY SHERIFF ALSO REPORTED EAST BOUND HIGHWAY 
19...JUST ONE HALF MILE EAST OF MORTON...WAS CLOSED DUE TO FLOOD 
WATER. THE REDWOOD COUNTY SHERIFF REPORTED FLOODING OF BASEMENTS AND 
SANITARY SEWERS IN THE CITY OF REDWOOD FALLS. SOME COUNTY ROADS HAVE 
ALSO BEEN REPORTED TO BE FLOODED ACROSS REDWOOD COUNTY AND COUNTY 
WORKERS ARE OUT PUTTING BARRICADES IN PLACE TO CLOSE UNSAFE ROADS. 

WEATHER RADAR SHOWS THE HEAVIEST RAIN MOVING EAST OF BUFFALO LAKE 
AND FAIRFAX...BUT CONTINUED SHOWERS AND STORMS ARE LIKELY TO DEPOSIT 
ANOTHER ONE HALF INCH TO ONE INCH OF RAIN BETWEEN 1 AM AND 4 AM. 

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. 

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN THE
TWIN CITIES.

LAT...LON 4483 9464 4458 9480 4433 9500 4429 9551
          4514 9568 4513 9529 4486 9524 4485 9495

$$

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 30, 12:41 AM CDTSevere Thunderstorm WarningMPXScott34 min
May 30, 1:08 AM CDTFlash Flood WarningMPXMcLeod, Sibley4 hr
May 30, 3:37 PM CDTTornado WarningMPXSherburne23 min
May 30, 6:50 PM CDTTornado WarningMPXGoodhue40 min

Nearby

Flash 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.