Alert archive / Minnesota / Flash Flood Warnings in 2016

Flash Flood Warning 47, NWS La Crosse, WI

September 21, 2016Fillmore County, Houston County, Mower County, Minnesota

NWS La Crosse, WI issued this flash flood warning at Sep 21, 2016, 11:44 PM CDT for Fillmore County, Houston County, Mower County, Minnesota. It was in force for 3 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
Sep 21, 2016, 11:44 PM CDT (04:44 UTC)
Expired
Sep 22, 2016, 2:45 AM CDT
In force
3 hr
Issued by
NWS La Crosse, WI
Area
Storm-based polygon
Flood severity
None

Counties Fillmore County, MN, Houston County, MN, Mower County, MN

The radar

The La Crosse radar (KARX), 66 km from the middle of the area, began a volume at 04:48 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
Sep 22, 12:27 AM CDTFLASH FLOODAustin, MNSTREET FLOODING IN THE CITY OF AUSTIN.
Sep 22, 12:55 AM CDTFLASH FLOOD2 Wnw Fountain, MNWATER WAS OVER COUNTY HIGHWAY 8 WEST OF FOUNTAIN.
Sep 22, 1:09 AM CDTFLASH FLOOD1 Ssw Mapleview, MNINTERSTATE 90 WAS BEING CLOSED BETWEEN OAKLAND AVE NW AND 6TH AVE NE DUE TO FLOODING.

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, 4.7 hours before the alert went out and 180 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 2016-09-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 144 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 00:00Z on 2016-09-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 428 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
144 J/kg
Mixed-layer CIN
-361 J/kg
Mixed-layer LCL
641 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
428 m²/s²
0-3 km storm-relative helicity
596 m²/s²
Significant tornado parameter
0.0
Supercell composite
11.6

Open this sounding in Storm Lab

The text

As transmitted.

696 
WGUS53 KARX 220444
FFWARX
MNC045-055-099-220745-
/O.NEW.KARX.FF.W.0047.160922T0444Z-160922T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
1144 PM CDT WED SEP 21 2016

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MOWER COUNTY IN SOUTHEASTERN MINNESOTA...
  FILLMORE COUNTY IN SOUTHEASTERN MINNESOTA...
  HOUSTON COUNTY IN SOUTHEASTERN MINNESOTA...

* UNTIL 245 AM CDT

* AT 1141 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN MOVING INTO THE WARNED AREA FROM THE NORTH. FLASH
  FLOODING IS EXPECTED TO ONSET RAPIDLY IN THE NEXT HOUR OR TWO. 

* RAINFALL RATES WITH THESE STORMS WILL BE 2-3 INCHES PER HOUR...AND
  TOTALS OF 5 INCHES COULD OCCUR WITHIN 2-3 HOURS. 

* THE CITY OF AUSTIN WILL BE ESPECIALLY PRONE TO FLASH FLOODING WITH
  THESE STORMS. 

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  AUSTIN...LA CRESCENT...CALEDONIA...PRESTON...RAMSEY...CHATFIELD...
  SPRING VALLEY...RUSHFORD...SPRING GROVE...GRAND MEADOW...HARMONY...
  HOUSTON...LE ROY...ADAMS...MABEL...LANESBORO...BROWNSDALE...
  HOKAH AND LYLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

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

&&

LAT...LON 4385 9305 4383 9257 4385 9129 4378 9124
      4361 9127 4358 9123 4350 9122 4350 9305

$$

DAB
1 follow-up statement
061 
WGUS73 KARX 220613
FFSARX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
113 AM CDT THU SEP 22 2016

MNC045-055-099-220745-
/O.CON.KARX.FF.W.0047.000000T0000Z-160922T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MOWER MN-FILLMORE MN-HOUSTON MN-
113 AM CDT THU SEP 22 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 245 AM CDT FOR
MOWER...FILLMORE AND HOUSTON COUNTIES...

AT 109 AM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA.  RAINFALL RATES ARE OVER AN
INCH PER HOUR. FLASH FLOODING IS OCCURRING. 

* AT 1110 AM...LAW ENFORCEMENT IS CLOSING I-90 THROUGH AUSTIN AS THE
  ROAD IS FLOODING.  FILLMORE COUNTY REPORTS WATER OVER ROADS IN
  THE COUNTY AS WELL. 

* BE VERY CAREFUL IF TRAVELING TONIGHT! THERE COULD BE POCKETS OF
  DANGEROUS FLOODING...SLOW DOWN AND STAY AWARE! 

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
AUSTIN...LA CRESCENT...CALEDONIA...PRESTON...RAMSEY...CHATFIELD...
SPRING VALLEY...RUSHFORD...SPRING GROVE...GRAND MEADOW...HARMONY...
HOUSTON...LE ROY...ADAMS...MABEL...LANESBORO...BROWNSDALE...
HOKAH AND LYLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.
&&

LAT...LON 4385 9129 4378 9124 4361 9127 4358 9123
      4350 9122 4350 9305 4385 9305 4383 9257

$$

DAB

The office that day

Everything else NWS La Crosse, WI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 21, 7:22 PM CDTSpecial Weather StatementARXMower38 min
Sep 21, 10:50 PM CDTFlash Flood WarningARXDodge, Olmsted, Wabasha, Winona4 hr
Sep 22, 12:21 AM CDTRiver Flood WarningARXOlmsted44 hr
Sep 22, 12:39 AM CDTRiver Flood WarningARXMower53 hr
Sep 22, 12:39 AM CDTRiver Flood WarningARXMower59 hr
Sep 22, 12:39 AM CDTRiver Flood WarningARXMower41 hr
Sep 22, 12:39 AM CDTRiver Flood WarningARXMower5 days
Sep 22, 2:45 AM CDTAreal Flood WarningARXDodge, Fillmore, Mower, Olmsted, Winona12 hr
Sep 22, 4:07 AM CDTRiver Flood WarningARXOlmsted, Winona25 hr
Sep 22, 6:38 AM CDTRiver Flood WarningARXWabasha3 days
Sep 22, 9:42 AM CDTRiver Flood WarningARXHouston3 days

Nearby

Flash Flood Warnings in Minnesota, 2016Every flash flood warning in 2016

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.