Alert archive / Minnesota / Flash Flood Warnings in 2010

Flash Flood Warning 10, NWS Twin Cities, MN

July 7, 2010Faribault County, Martin County, Minnesota

NWS Twin Cities, MN issued this flash flood warning at Jul 7, 2010, 2:53 PM CDT for Faribault County, Martin County, Minnesota. It was in force for 3 hr. 1 report 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
Jul 7, 2010, 2:53 PM CDT (19:53 UTC)
Expired
Jul 7, 2010, 6:00 PM CDT
In force
3 hr
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Flood severity
None

Counties Faribault County, MN, Martin County, MN

The radar

The Minneapolis radar (KMPX), 140 km from the middle of the area, began a volume at 19:57 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
Jul 7, 3:30 PM CDTFLOODGranada, MN4.1 INCHES OF RAIN CAUSED CENTER CREEK TO RISE A FEW FEET. SOME BASEMENT FLOODING OCCURED FROM PONDING 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 12:00Z, 7.9 hours before the alert went out and 139 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 12:00Z on 2010-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 173 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, Minneapolis, MN at 12:00Z on 2010-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -3 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
173 J/kg
Mixed-layer CIN
-54 J/kg
Mixed-layer LCL
1207 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
-3 m²/s²
0-3 km storm-relative helicity
-1 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.3

Open this sounding in Storm Lab

The text

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

058 
WGUS53 KMPX 071953
FFWMPX
MNC043-091-072300-
/O.NEW.KMPX.FF.W.0010.100707T1953Z-100707T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
253 PM CDT WED JUL 7 2010

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

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

* UNTIL 600 PM CDT

* AT 252 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE   
  WARNED AREA. RAINFALL AMOUNTS OF TWO TO THREE INCHES HAVE BEEN 
  ESTIMATED BY DOPPLER RADAR. PONDING OF WATER HAS ALREADY BEEN 
  REPORTED BY THE PUBLIC IN GRANADA. AN ADDITIONAL ONE HALF TO ONE AND 
  A HALF INCHES OF RAIN IS POSSIBLE ACROSS EASTERN MARTIN AND WESTERN 
  FARIBAULT COUNTIES.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  FAIRMONT...GRANADA...HUNTLEY...WINNEBAGO...AND NEAR INTERSTATE 90.

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...CENTER CREEK...
ELM CREEK...AND TRIBUTARIES TO THE BLUE EARTH RIVER SOUTH AND 
SOUTHWEST OF WINNEBAGO. THE BLUE EARTH RIVER MAY RISE AS WELL IN 
RESPONSE TO THIS RAINFALL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN THE
TWIN CITIES.

&&

LAT...LON 4364 9451 4374 9439 4385 9423 4385 9403
      4368 9409 4361 9421 4360 9438

$$

MTF/MPG
1 follow-up statement
036 
WGUS73 KMPX 072051
FFSMPX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
351 PM CDT WED JUL 7 2010

MNC043-091-072300-
/O.CON.KMPX.FF.W.0010.000000T0000Z-100707T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FARIBAULT MN-MARTIN MN-
351 PM CDT WED JUL 7 2010

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR NORTHEASTERN MARTIN AND
NORTHWESTERN FARIBAULT COUNTIES UNTIL 600 PM CDT...

AT 350 PM CDT...LIGHT RAINFALL WAS OCCURRING ACROSS EASTERN MARTIN
AND WESTERN FARIBAULT COUNTIES. THIS AREA HAS EXPERIENCED TWO TO THREE
AND A HALF INCHES OF RAIN SINCE 130 PM CDT. MINOR FLOODING HAS BEEN
REPORTED THUS FAR WITH ISOLATED MORE IMPACTING FLOODING PROBABLE 
WITHIN SOME OF THE WARNED AREA.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING IN OR NEAR THEM 
INCLUDE...FAIRMONT...GRANADA...HUNTLEY...WINNEBAGO...AND NEAR 
INTERSTATE 90.

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...CENTER CREEK...
ELM CREEK...AND TRIBUTARIES TO THE BLUE EARTH RIVER SOUTH AND 
SOUTHWEST OF WINNEBAGO. THE BLUE EARTH RIVER MAY RISE AS WELL IN 
RESPONSE TO THIS RAINFALL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

REPORT FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY SO THAT THEY
MAY TAKE APPROPRIATE ACTION TO CLOSE FLOODED ROADWAYS. THEY WILL
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES.

&&

LAT...LON 4364 9451 4374 9439 4385 9423 4385 9403
      4368 9409 4361 9421 4360 9438

$$

MTF/MPG

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 7, 2:03 AM CDTSpecial Weather StatementMPXYellow Medicine42 min
Jul 7, 2:51 AM CDTSpecial Weather StatementMPXYellow Medicine39 min
Jul 7, 4:59 PM CDTAreal Flood AdvisoryMPXHennepin60 min
Jul 7, 5:20 PM CDTSpecial Weather StatementMPXAnoka, Dakota, Ramsey, Washington85 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.