Alert archive / Minnesota / Flash Flood Warnings in 2006

Flash Flood Warning 2, NWS Twin Cities, MN

April 6, 2006Dakota County, Washington County, Minnesota

NWS Twin Cities, MN issued this flash flood warning at Apr 6, 2006, 7:02 PM CDT for Dakota County, Washington County, Minnesota. 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
Apr 6, 2006, 7:02 PM CDT (00:02 UTC)
Expired
Apr 6, 2006, 10:00 PM CDT
In force
3 hr
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

Counties Dakota County, MN, Washington County, MN

The radar

The Minneapolis radar (KMPX), 49 km from the middle of the area, began a volume at 00:03 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, 0.0 hours before the alert went out and 51 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 2006-04-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 2006-04-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 118 square meters per square second.1939Sfc1 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
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

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KMPX 070005
FFWMPX
MNC037-163-070300-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
702 PM CDT THU APR 6 2006

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WASHINGTON COUNTY IN EAST CENTRAL MINNESOTA...
  NORTHERN DAKOTA COUNTY IN EAST CENTRAL MINNESOTA...

* UNTIL 1000 PM CDT

* AT 702 PM CDT...RADAR DETECTED THUNDERSTORMS PRODUCING VERY HEAVY
  RAIN ACROSS MUCH OF THE WARNED AREA. THE STORMS PRODUCING THE
  HEAVIEST RAIN WERE OVER INVER GROVE HEIGHTS...OR ABOUT 8 MILES     
  SOUTH OF ST PAUL. ESTIMATES FROM RADAR INDICATED THAT OVER 1       
  INCH OF RAIN HAS FALLEN DURING THE PAST HALF HOUR OVER THE WARNED  
  AREA. THESE STORMS WERE MOVING NORTHEAST AT 20 MPH.

  MORE THUNDERSTORMS MAY PASS OVER THE SAME AREA THROUGH 9 PM.  

* SOME LOCATIONS THAT MAY BE AFFECTED INCLUDE...AFTON...BAYPORT...
  COTTAGE GROVE...NEWPORT...SOUTH ST PAUL...ST PAUL PARK AND
  STILLWATER.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IMMINENT.
IF YOU ARE IN THE WARNED AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY.

LAT...LON 4491 9312 4475 9305 4480 9279 4516 9278
      4504 9290 4492 9294

$$
JPR
2 follow-up statements
000 
WGUS73 KMPX 070106
FFSMPX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
801 PM CDT THU APR 6 2006

MNC037-163-070300-
WASHINGTON MN-DAKOTA MN-
801 PM CDT THU APR 6 2006

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT FOR
DAKOTA AND WASHINGTON COUNTIES...

AT 801 PM CDT...NATIONAL WEATHER SERVICE RADAR CONTINUED TO DETECT 
SCATTERED THUNDERSTORMS PRODUCING OCCASIONAL HEAVY RAIN...EXTENDING 
FROM AROUND WEST ST PAUL...TO AFTON AND COTTAGE GROVE. THE STORMS 
PRODUCING THE VERY HEAVY RAINFALL WERE MOVING NORTHEAST AT 20 MPH.

IT APPEARS THAT RAINFALL RATES HAVE DECREASED SOMEWHAT...BUT 
ADDITIONAL THUNDERSTORM CELLS WERE REDEVELOPING OVER THE SAME AREAS
RESULTING IN HIGHER RAINFALL TOTALS. 

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT DRIVE YOUR VEHICLE
INTO AREAS WHERE THE WATER COVERS THE ROAD. TWO FEET OF RUSHING WATER
CAN CARRY AWAY MOST VEHICLES INCLUDING SPORT UTILITY VEHICLES AND 
PICKUPS. 

LAT...LON 4491 9312 4475 9305 4480 9279 4516 9278
      4504 9290 4492 9294

$$
JPR
000 
WGUS73 KMPX 070222
FFSMPX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
919 PM CDT THU APR 6 2006

MNC037-163-070300-
WASHINGTON MN-DAKOTA MN-
919 PM CDT THU APR 6 2006

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT UNTIL 1000 PM CDT FOR 
DAKOTA AND WASHINGTON COUNTIES HAS BEEN CANCELED.

WATER LEVELS HAVE RECEDED IN THE WARNED AREA. HEAVY RAIN HAS ALSO 
MOVED OFF TO THE EAST. THEREFORE...THE FLASH FLOOD WARNING FOR 
DAKOTA AND WASHINGTON HAS BEEN CANCELED.

LAT...LON 4491 9312 4475 9305 4480 9279 4516 9278
      4504 9290 4492 9294

$$
JPR

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 6, 9:48 PM CDTWind AdvisoryMPXBlue Earth, Brown, Chippewa, Douglas, Faribault, Freeborn and 15 more14 hr
Apr 7, 5:30 AM CDTFlash Flood WarningMPXFaribault, Freeborn, Martin4 hr
Apr 7, 7:30 AM CDTFlash Flood WarningMPXBlue Earth, Steele, Waseca2 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.