Alert archive / Minnesota / Flash Flood Warnings in 2010

Flash Flood Warning 5, NWS Twin Cities, MN

June 26, 20104 counties in Minnesota

NWS Twin Cities, MN issued this flash flood warning at Jun 26, 2010, 8:15 PM CDT for 4 counties in Minnesota. It was in force for 4 hr. 3 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 26, 2010, 8:15 PM CDT (01:15 UTC)
Expired: Jun 27, 2010, 12:01 AM CDT
In force: 4 hr
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Flood severity: None

Counties Blue Earth County, MN, Faribault County, MN, Martin County, MN, Watonwan County, MN

The radar

The Minneapolis radar (KMPX), 111 km from the middle of the area, began a volume at 01:14 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
Jun 26, 8:55 PM CDT	HEAVY RAIN 2.2	St James, MN	STREET FLOODING, WATER UP OVER CURBS.
Jun 26, 9:30 PM CDT	FLASH FLOOD	St James, MN	STRRET FLOODING IN ST JAMES, SOME LOW AREAS IMPASSABLE, BUT NOW RECEDED.
Jun 26, 9:54 PM CDT	FLASH FLOOD	3 Sw Mankato, MN	WATER COVERING ROADS.

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, 1.3 hours before the alert went out and 110 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: 1959 J/kg
Mixed-layer CIN: -106 J/kg
Mixed-layer LCL: 876 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: -6 m²/s²
0-3 km storm-relative helicity: 34 m²/s²
Significant tornado parameter: -0.1
Supercell composite: -0.6

Open this sounding in Storm Lab

The text

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

909 
WGUS53 KMPX 270115
FFWMPX
MNC013-043-091-165-270700-
/O.NEW.KMPX.FF.W.0005.100627T0115Z-100627T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
815 PM CDT SAT JUN 26 2010

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BLUE EARTH COUNTY IN SOUTH CENTRAL MINNESOTA...
  FARIBAULT COUNTY IN SOUTH CENTRAL MINNESOTA...
  MARTIN COUNTY IN SOUTH CENTRAL MINNESOTA...
  WATONWAN COUNTY IN SOUTH CENTRAL MINNESOTA...

* UNTIL 200 AM CDT

* AT 811 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL MOVING INTO
  WARNED AREA. RAINFALL RATES ARE RANGING FROM 1 TO 2 INCHES PER 
  HOUR.  THESE EXCESSIVE RAINFALL RATES WILL CAUSE RAPID RUNOFF 
  ACROSS AREAS THAT ARE NEARLY SATURATED FROM RECENT RAINS.  

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...BLUE
  EARTH...FAIRMONT...MANKATO...ST JAMES...AMBOY...BRICELYN...
  DELAVAN...DUNNELL...EAGLE LAKE...GOOD THUNDER...KIESTER...
  LEWISVILLE...MADELIA...MAPLETON...MINNESOTA LAKE...SHERBURN...
  TRIMONT...VERNON CENTER...WELCOME...WELLS AND WINNEBAGO.

RAINFALL THROUGH MIDNIGHT WILL LIKELY RANGE FROM 1 TO 3 INCHES ACROSS
THE AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

&&

LAT...LON 4351 9484 4409 9484 4411 9436 4424 9436
      4415 9406 4419 9399 4424 9400 4423 9378
      4384 9377 4384 9366 4351 9366

$$
DWE

1 follow-up statement

536 
WGUS73 KMPX 270501
FFSMPX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1201 AM CDT SUN JUN 27 2010

MNC013-043-091-165-270515-
/O.CAN.KMPX.FF.W.0005.000000T0000Z-100627T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BLUE EARTH MN-WATONWAN MN-FARIBAULT MN-MARTIN MN-
1201 AM CDT SUN JUN 27 2010

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR MARTIN...
FARIBAULT...WATONWAN AND BLUE EARTH COUNTIES IS CANCELLED...

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. 
STREAMS AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING 
TO RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN OBSERVED...
PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.

LAT...LON 4351 9484 4409 9484 4411 9436 4424 9436
      4415 9406 4419 9399 4424 9400 4423 9378
      4384 9377 4384 9366 4351 9366

$$
DWE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 26, 7:39 PM CDT	Special Weather Statement	MPX	Brown, Nicollet, Watonwan	51 min
Jun 26, 7:59 PM CDT	Special Weather Statement	MPX	Carver, Hennepin, Scott	61 min
Jun 26, 8:03 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Brown, Le Sueur, Nicollet, Sibley, Watonwan	57 min
Jun 26, 8:17 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Faribault, Martin, Watonwan	43 min
Jun 26, 8:22 PM CDT	Severe Thunderstorm Warning	MPX	Le Sueur, Scott, Sibley	53 min
Jun 26, 8:45 PM CDT	Tornado Warning	MPX	Blue Earth, Nicollet	30 min
Jun 26, 8:50 PM CDT	Flash Flood Warning	MPX	Dakota, Freeborn, Le Sueur, Rice, Scott, Steele and 1 more	5 hr
Jun 26, 8:51 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Le Sueur, Rice, Scott	84 min
Jun 26, 9:00 PM CDT	Areal Flood Advisory	MPX	Carver	5 hr
Jun 26, 9:00 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Faribault, Freeborn, Martin, Steele, Waseca	60 min
Jun 26, 9:11 PM CDT	Tornado Warning	MPX	Le Sueur, Rice, Scott	34 min
Jun 26, 9:35 PM CDT	Tornado Warning	MPX	Steele, Waseca	25 min
Jun 26, 9:42 PM CDT	Tornado Warning	MPX	Dakota, Scott	48 min
Jun 26, 9:45 PM CDT	Flash Flood Warning	MPX	Goodhue	4 hr
Jun 26, 9:47 PM CDT	Tornado Warning	MPX	Faribault, Freeborn, Steele, Waseca	28 min
Jun 26, 9:53 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Goodhue, Washington	82 min
Jun 26, 9:56 PM CDT	Severe Thunderstorm Warning	MPX	Faribault, Freeborn, Steele, Waseca	49 min
Jun 26, 10:14 PM CDT	Areal Flood Advisory	MPX	Washington	4 hr
Jun 26, 10:40 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue	61 min
Jun 26, 10:57 PM CDT	Flash Flood Warning	MPX	Hennepin, Ramsey, Washington	3 hr
Jun 27, 12:31 AM CDT	Special Weather Statement	MPX	Dakota, Goodhue, Ramsey, Washington	59 min
Jun 27, 10:42 AM CDT	River Flood Warning	MPX	Blue Earth, Brown, Nicollet	4 days
Jun 27, 10:42 AM CDT	River Flood Warning	MPX	Blue Earth, Brown, Nicollet	9 days
Jun 27, 10:42 AM CDT	River Flood Warning	MPX	Le Sueur, Scott, Sibley	8 days
Jun 27, 10:42 AM CDT	River Flood Warning	MPX	Carver, Scott	11 days
Jun 27, 10:42 AM CDT	River Flood Warning	MPX	Carver, Hennepin, Scott	11 days
Jun 27, 10:42 AM CDT	River Flood Warning	MPX	Dakota, Hennepin, Scott	3 days
Jun 27, 10:42 AM CDT	River Flood Warning	MPX	Redwood	49 hr

Nearby

Flash Flood Warnings in Minnesota, 2010 Every 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.