Alert archive / Minnesota / Flash Flood Warnings in 2007

Flash Flood Warning 22, NWS Twin Cities, MN

August 19, 2007Faribault County, Freeborn County, Minnesota

NWS Twin Cities, MN issued this flash flood warning at Aug 19, 2007, 2:48 AM CDT for Faribault County, Freeborn County, Minnesota. It was in force for 6 hr. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Aug 19, 2007, 2:48 AM CDT (07:48 UTC)
Expired
Aug 19, 2007, 8:45 AM CDT
In force
6 hr
Issued by
NWS Twin Cities, MN
Area
Whole counties

Counties Faribault County, MN, Freeborn County, MN

The radar

The Minneapolis radar (KMPX), 131 km from the middle of the area, began a volume at 07:51 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

TimeReportWhereRemark
Aug 19, 4:55 AM CDTFLASH FLOODWells, MNCOUPLE OF STREETS UNDER 2 FEET OF WATER

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, 7.8 hours before the alert went out and 131 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 2007-08-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 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 2007-08-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 232 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
541 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
232 m²/s²
0-3 km storm-relative helicity
510 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 190752
FFWMPX
MNC043-047-191345-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
248 AM CDT SUN AUG 19 2007

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...

* UNTIL 845 AM CDT

* AT 248 AM CDT...RADAR DETECTED THUNDERSTORMS PRODUCING VERY HEAVY
  RAIN ACROSS MUCH OF THE WARNED AREA. THE STORMS PRODUCING THE   
  HEAVIEST RAIN WERE NEAR WELLS AND HARTLAND. THESE STORMS WERE MOVING 
  SLOWLY SOUTH SOUTHEAST. THE GROUND IS ALREADY SATURATED BY 3 TO 5 
  INCHES OF RAIN THAT HAS FALLEN THE LAST 24 HOURS. RAINFALL RATES 
  WITHIN THE LINE OF STORMS REMAIN HIGH...1 TO 2 INCHES AN HOUR...AND 
  THE ADDITIONAL RAIN WILL RUNOFF AND CAUSE FLOODING.

* SOME LOCATIONS THAT MAY BE AFFECTED INCLUDE...ALBERT LEA...ALDEN...
  BLUE EARTH...CLARKS GROVE...GENEVA...GLENVILLE AND MINNESOTA LAKE.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS. IF FLOODING IS OBSERVED ACT QUICKLY. MOVE TO
HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO
FLOODING WHEN WATER BEGINS RISING.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT DRIVE YOUR VEHICLE
INTO AREAS WHERE THE WATER COVERS THE ROAD. JUST ONE FOOT OF RUSHING
WATER CAN SWEEP MOST VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

LAT...LON 4351 9424 4352 9306 4384 9307 4384 9422

$$

DWE
2 follow-up statements
000 
WGUS73 KMPX 191027
FFSMPX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
523 AM CDT SUN AUG 19 2007

MNC043-047-191345-
FARIBAULT MN-FREEBORN MN-
523 AM CDT SUN AUG 19 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 845 AM CDT FOR
FREEBORN AND FARIBAULT COUNTIES...

AT 523 AM CDT...DOPPLER RADAR CONTINUE TO SHOW THUNDERSTORMS WITH 
HEAVY RAIN MOVING ACROSS MOVING ALONG THE INTERSTATE 90 CORRIDOR 
FROM NEAR BLUE EARTH TO ALBERT LEA.  RAINFALL RATES OF 1 TO 2 INCHES 
AN HOUR ARE LIKELY WITH THESE STORMS AS THEY PASS THROUGH.  ANY ADDITIONAL 
RAINFALL OVER ALREADY SATURATED GROUND WILL CAUSE RAPID RUNOFF AND 
THE POTENTIAL FLOODING OF ROAD AND SMALL STREAMS.

LAW ENFORCEMENT OFFICIALS REPORTED SOME ROADS FLOODED IN WELLS JUST 
BEFORE 5 AM. 

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS. IF FLOODING IS OBSERVED ACT QUICKLY. MOVE TO
HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO
FLOODING WHEN WATER BEGINS RISING.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT DRIVE YOUR VEHICLE
INTO AREAS WHERE THE WATER COVERS THE ROAD. JUST ONE FOOT OF RUSHING
WATER CAN SWEEP MOST VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

LAT...LON 4351 9424 4352 9306 4384 9307 4384 9422

$$

DWE
000 
WGUS73 KMPX 191323
FFSMPX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
823 AM CDT SUN AUG 19 2007

MNC043-047-191333-
FARIBAULT MN-FREEBORN MN-
823 AM CDT SUN AUG 19 2007

...THE FLASH FLOOD WARNING FOR FREEBORN AND FARIBAULT COUNTIES HAS
BEEN CANCELLED...

RADAR INDICATED THAT RAINFALL WAS ENDING ACROSS THE WARNED AREA...
AND THE FLOOD THREAT WAS DIMINISHING.

THEREFORE...THE FLASH FLOOD WARNING FOR FREEBORN AND FARIBAULT 
COUNTIES HAS BEEN CANCELLED.

LAT...LON 4351 9424 4352 9306 4384 9307 4384 9422

$$

DWE

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 18, 10:00 PM CDTFlash Flood WarningMPXGoodhue6 hr
Aug 18, 10:50 PM CDTFlash Flood WarningMPXLe Sueur, Nicollet, Rice, Sibley6 hr
Aug 19, 12:50 AM CDTFlash Flood WarningMPXSteele, Waseca4 hr
Aug 19, 12:50 AM CDTFlash Flood WarningMPXBlue Earth, Steele, Waseca4 hr
Aug 19, 1:18 AM CDTFlash Flood WarningMPXBrown, Redwood, Renville6 hr
Aug 19, 3:04 AM CDTFlash Flood WarningMPXWatonwan6 hr
Aug 19, 8:53 AM CDTFlash Flood WatchMPXBlue Earth, Brown, Faribault, Freeborn, Goodhue, Le Sueur and 9 more16 hr
Aug 19, 12:04 PM CDTFlash Flood WarningMPXWatonwan3 hr
Aug 19, 2:48 PM CDTFlash Flood WarningMPXWatonwan3 hr
Aug 19, 6:20 PM CDTFlash Flood WarningMPXFaribault115 min

Nearby

Flash Flood Warnings in Minnesota, 2007Every flash flood warning in 2007

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.