Alert archive / Minnesota / Flash Flood Warnings in 2010

Flash Flood Warning 3, NWS Twin Cities, MN

June 17, 2010Freeborn County, Steele County, Waseca County, Minnesota

NWS Twin Cities, MN issued this flash flood warning at Jun 17, 2010, 7:55 PM CDT for Freeborn County, Steele County, Waseca County, Minnesota. It was in force for 6 hr. 7 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
Jun 17, 2010, 7:55 PM CDT (00:55 UTC)
Expired
Jun 18, 2010, 1:35 AM CDT
In force
6 hr
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Flood severity
None

Counties Freeborn County, MN, Steele County, MN, Waseca County, MN

The radar

The Minneapolis radar (KMPX), 109 km from the middle of the area, began a volume at 00:56 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
Jun 17, 8:00 PM CDTFLASH FLOODWaseca, MNMOVING WATER OVER SIDEWALKS.
Jun 17, 8:09 PM CDTFLASH FLOOD2 Ne Waseca, MNFOURTH STREET.
Jun 17, 8:15 PM CDTFLASH FLOOD3 W Blooming Prairie, MNTORNADO LOCATED ONE MILE WEST OF COUNTY ROAD 218
Jun 17, 9:00 PM CDTFLASH FLOODAlbert Lea, MNMULTIPLE AREAS OF FLOODING ACROSS THE COUNTY. SOME ROADS CLOSED.
Jun 17, 9:00 PM CDTFLASH FLOODOwatonna, MNMULTIPLE AREAS OF FLOODING ACROSS STEELE COUNTY.
Jun 17, 9:00 PM CDTFLASH FLOODWaseca, MNMULTIPLE ROADS HAVE TWO TO THREE FEET OF WATER ON THEM. A COUPLE RURAL ROADS ALSO CLOSED DUE TO FLOODING.
Jun 17, 9:30 PM CDTHEAVY RAIN 3.922 Wsw Waseca, MNRAIN FELL IN THREE HOURS 1830 TO 2130...CAUSED URBAN STREET FLOODING...BASEMENT FLOODING...AND SMALL STREAM FLOODING.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 0.9 hours before the alert went out and 353 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, Davenport, at 00:00Z on 2010-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1494 joules per kilogram.LCLLFCEL10008507005003002001001 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, Davenport, at 00:00Z on 2010-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 136 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
1494 J/kg
Mixed-layer CIN
-132 J/kg
Mixed-layer LCL
1231 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
136 m²/s²
0-3 km storm-relative helicity
271 m²/s²
Significant tornado parameter
0.4
Supercell composite
5.5

Open this sounding in Storm Lab

The text

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

995 
WGUS53 KMPX 180055
FFWMPX
MNC047-147-161-180700-
/O.NEW.KMPX.FF.W.0003.100618T0055Z-100618T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
755 PM CDT THU JUN 17 2010

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  FREEBORN COUNTY IN SOUTH CENTRAL MINNESOTA...
  STEELE COUNTY IN SOUTH CENTRAL MINNESOTA...
  WASECA COUNTY IN SOUTH CENTRAL MINNESOTA...

* UNTIL 200 AM CDT FRIDAY

* AT 750 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  TRAINING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE         
  WARNED AREA. THESE THUNDERSTORMS WILL REMAIN SLOW TO MOVE THROUGH  
  AT LEAST 1000 PM CDT. RAINFALL ESTIMATES OF TWO TO THREE INCHES    
  HAVE OCCURRED ACROSS MUCH OF THESE THREE COUNTIES SINCE LATE       
  AFTERNOON.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  ALBERT LEA...HAYWARD...OWATONNA...WASECA...ALDEN...BIXBY...BLOOMING
  PRAIRIE...CLARKS GROVE...CONGER...DEERFIELD...ELLENDALE...
  FREEBORN...GENEVA...GLENVILLE...HOLLANDALE...JANESVILLE...LONDON...
  MANCHESTER...MEDFORD...MYRTLE...NEW RICHLAND...OTISCO...STEELE     
  CENTER...TWIN LAKES...OWATONNA...INTERSTATE 90...AND INTERSTATE 35.

SOME OF THE RIVERS AND STREAMS THAT WILL BE IMPACTED 
INCLUDE...FOSTER CREEK...BANCROFT CREEK...EAST BRANCH OF THE BLUE 
EARTH RIVER...STRAIGHT RIVER...CRANE RIVER...LITTLE COBB RIVER...AND 
BULL RUN CREEK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ADDITIONAL RAINFALL AMOUNTS OF ONE TO TWO INCHES ARE POSSIBLE IN THE 
WARNED AREA.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...
COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND
OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING.

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

&&

LAT...LON 4386 9366 4386 9377 4398 9378 4420 9377
      4420 9304 4351 9305 4351 9364

$$

TRH/MTF
2 follow-up statements
946 
WGUS73 KMPX 180242
FFSMPX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
942 PM CDT THU JUN 17 2010

MNC047-147-161-180700-
/O.CON.KMPX.FF.W.0003.000000T0000Z-100618T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WASECA MN-STEELE MN-FREEBORN MN-
942 PM CDT THU JUN 17 2010

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR FREEBORN...STEELE AND
WASECA COUNTIES UNTIL 200 AM CDT...

AT 940 PM CDT...LAW ENFORCEMENT CONTINUED TO REPORT FLOODING ACROSS 
FREEBORN...STEELE...AND WASECA COUNTIES. NATIONAL WEATHER SERVICE 
DOPPLER RADAR HAD INDICATED THE HEAVY RAIN PRODUCING THUNDERSTORMS 
HAD PRIMARILY MOVED EAST OF THE AREA. HOWEVER...SATURATED GROUND 
FROM TWO TO FOUR AND A HALF INCHES OF RAIN FROM EARLIER WILL LEAD TO 
A VERY SLOW RECESSION OF THE WATER INTO THE OVERNIGHT HOURS.

RUNOFF FROM THE EXCESSIVE RAINFALL WILL CONTINUE FLOODING. SOME 
LOCATIONS THAT ARE LIKELY TO CONTINUE TO EXPERIENCE SOME FLOODING 
INTO OVERNIGHT INCLUDE...ALBERT LEA...HAYWARD...OWATONNA...WASECA...
ALDEN...BIXBY...BLOOMING PRAIRIE...CLARKS GROVE...CONGER...
DEERFIELD...ELLENDALE...FREEBORN...GENEVA...GLENVILLE...HOLLANDALE...
JANESVILLE...LONDON...MANCHESTER...MEDFORD...MYRTLE. ..NEW 
RICHLAND...OTISCO...STEELE CENTER AND TWIN LAKES.

LAW ENFORCEMENT REPORTED FLOODED ROADWAYS IN THE COMMUNITY OF 
WASECA....AS WELL AS VARIOUS OTHER AREAS ACROSS 
FREEBORN...STEELE...AND WASECA COUNTIES. SEVERAL ROADWAYS ARE 
CLOSED. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED...ACT QUICKLY. DO NOT
ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND. DO NOT
STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

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.

&&

LAT...LON 4386 9366 4386 9377 4398 9378 4420 9377
      4420 9304 4351 9305 4351 9364

$$

MTF/TRH
717 
WGUS73 KMPX 180635
FFSMPX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
135 AM CDT FRI JUN 18 2010

MNC047-147-161-180647-
/O.CAN.KMPX.FF.W.0003.000000T0000Z-100618T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WASECA MN-STEELE MN-FREEBORN MN-
135 AM CDT FRI JUN 18 2010

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR FREEBORN...STEELE
AND WASECA COUNTIES IS CANCELLED...

ADDITIONAL HEAVY RAIN IS NOT EXPECTED OVER THE AREA AND NO REPORTS 
OF ONGOING FLOODING HAVE BEEN RECEIVED. IF FLOODING HAS BEEN 
OBSERVED...PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.

LAT...LON 4386 9366 4386 9377 4398 9378 4420 9377
      4420 9304 4351 9305 4351 9364

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 17, 7:00 PM CDTSevere Thunderstorm WarningMPXAnoka, Hennepin, Ramsey35 min
Jun 17, 7:10 PM CDTTornado WarningMPXSteele, Waseca50 min
Jun 17, 7:12 PM CDTSpecial Weather StatementMPXChisago, Washington2 hr
Jun 17, 7:13 PM CDTTornado WarningMPXBlue Earth, Steele, Waseca47 min
Jun 17, 7:28 PM CDTTornado WarningMPXFreeborn, Steele47 min
Jun 17, 7:52 PM CDTTornado WarningMPXSteele23 min
Jun 17, 8:00 PM CDTAreal Flood AdvisoryMPXBlue Earth, Faribault, Le Sueur, Nicollet, Rice6 hr
Jun 17, 8:02 PM CDTSevere Thunderstorm WarningMPXChisago, Isanti43 min
Jun 17, 8:11 PM CDTTornado WarningMPXSteele34 min
Jun 17, 8:13 PM CDTTornado WarningMPXFreeborn32 min
Jun 17, 8:34 PM CDTTornado WarningMPXChisago26 min

Nearby

Flash Flood Warnings in Minnesota, 2010Every flash flood warning in 2010

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.