Alert archive / Minnesota / Flash Flood Warnings in 2006

Flash Flood Warning 4, NWS Twin Cities, MN

April 7, 2006Faribault County, Freeborn County, Martin County, Minnesota

NWS Twin Cities, MN issued this flash flood warning at Apr 7, 2006, 5:30 AM CDT for Faribault County, Freeborn County, Martin County, Minnesota. It was in force for 4 hr. 4 reports 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, 5:30 AM CDT (10:30 UTC)
Expired: Apr 7, 2006, 9:30 AM CDT
In force: 4 hr
Issued by: NWS Twin Cities, MN
Area: Counties, with a storm outline in the text

Counties Faribault County, MN, Freeborn County, MN, Martin County, MN

The radar

The Minneapolis radar (KMPX), 142 km from the middle of the area, began a volume at 10:30 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, 8:30 AM CDT	FLASH FLOOD	Albert Lea, MN	BACKYARDS AND MINOR STREET FLOODING ALL OVER THE COUNTY.
Apr 7, 8:30 AM CDT	FLASH FLOOD	Dunnell, MN	SCATTERED STREETS AND BASEMENTS FLOODED IN AND AROUND DUNNELL.
Apr 7, 8:30 AM CDT	FLASH FLOOD	Fairmont, MN	SCATTERED ROADS AND BASEMENTS FLOODED IN AND AROUND FAIRMONT.
Apr 7, 8:30 AM CDT	FLASH FLOOD	Winnebago, MN	SCATTERED STREETS UNDERWATER IN WINNEBAGO AND SURROUNDING AREA.

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, 10.5 hours before the alert went out and 141 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: 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 071037
FFWMPX
MNC043-047-091-071430-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
530 AM CDT FRI APR 7 2006

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  FARIBAULT COUNTY IN SOUTH CENTRAL MINNESOTA
  FREEBORN COUNTY IN SOUTH CENTRAL MINNESOTA
  MARTIN COUNTY IN SOUTH CENTRAL MINNESOTA

* UNTIL 930 AM CDT

* AT 530 AM CDT...RADAR DETECTED THUNDERSTORMS PRODUCING VERY HEAVY
  RAIN ACROSS MUCH OF THE WARNED AREA. THE STORMS PRODUCING THE      
  HEAVIEST RAIN WERE ALONG AND ON EITHER SIDE OF INTERSTATE 90       
  BETWEEN ALBERT LEA AND FAIRMONT. 4 INCHES OF RAIN HAS BEEN RECORED 
  SINCE MIDNIGHT FROM A DEPARTMENT OF TRANSPORTATION OBSERVING       
  SITE ALONG INTERSTATE 90 NEAR BLUE EARTH. THESE STORMS WERE        
  NEARLY STATIONARY.

  EXPECT SLOW MOVING THUNDERSTORMS TO PRODUCE TORRENTIAL RAINFALL IN
  THE WARNED AREA.

* SOME LOCATIONS THAT MAY BE AFFECTED INCLUDE...ALBERT LEA...ALDEN...
  BLUE EARTH...BRICELYN...CLARKS GROVE AND CONGER.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IMMINENT. 
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY.

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 4351 9484 4352 9310 4383 9309 4382 9483

$$

1 follow-up statement

000 
WGUS73 KMPX 071346
FFSMPX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
837 AM CDT FRI APR 7 2006

MNC043-047-091-071430-
FARIBAULT MN-FREEBORN MN-MARTIN MN-
837 AM CDT FRI APR 7 2006

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 930 AM CDT FOR
MARTIN...FREEBORN AND FARIBAULT COUNTIES...

AT 837 AM CDT...RADAR INDICATED RAIN CONTINUING OVER THE ENTIRE 
AREA...WITH THE HEAVIEST RAIN ALONG A LINE FROM TRUMAN...TO 
MINNESOTA LAKE...TO CLARKS GROVE. SOME STREETS WERE REPORTED FLOODED 
IN WINNEBAGO AND DUNNELL AS WELL AS SOME BASEMENT FLOODING. AS OF 7 
AM...FAIRMONT REPORTED 3.36 INCHES OF RAIN...ALBERT LEA REPORTED 
2.57 INCHES...AND WINNEBAGO REPORTED 2.11 INCHES. 

THE GROUND HAS ALREADY BEEN SATURATED BY RECENT RAINFALL IN THE
WARNED AREA...AND ADDITIONAL RAIN WILL RUNOFF AND CAUSE FLOODING.

IT APPEARS THAT RAIN WILL CONTINUE BEYOND 10 AM...BUT WITH 
DECREASING RATES. THE WARNING MAY NEED TO BE REISSUED IF FLOODING 
CONTINUES.

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 4351 9484 4352 9310 4383 9309 4382 9483

$$
JPR

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 6, 7:02 PM CDT	Flash Flood Warning	MPX	Dakota, Washington	3 hr
Apr 6, 9:48 PM CDT	Wind Advisory	MPX	Blue Earth, Brown, Chippewa, Douglas, Faribault, Freeborn and 15 more	14 hr
Apr 7, 7:30 AM CDT	Flash Flood Warning	MPX	Blue Earth, Steele, Waseca	2 hr

Nearby

Flash Flood Warnings in Minnesota, 2006 Every 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.