Alert archive / Wisconsin / Flash Flood Warnings in 2015

Flash Flood Warning 5, NWS Twin Cities, MN

July 6, 2015Chippewa County, Dunn County, Eau Claire County, Wisconsin

NWS Twin Cities, MN issued this flash flood warning at Jul 6, 2015, 5:45 AM CDT for Chippewa County, Dunn County, Eau Claire County, Wisconsin. It was in force for 3 hr. 5 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
Jul 6, 2015, 5:45 AM CDT (10:45 UTC)
Expired
Jul 6, 2015, 8:45 AM CDT
In force
3 hr
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Flood severity
None

Counties Chippewa County, WI, Dunn County, WI, Eau Claire County, WI

The radar

The La Crosse radar (KARX), 123 km from the middle of the area, began a volume at 10:49 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 6, 6:10 AM CDTHEAVY RAIN 3.719 Ene Tilden, WIREPORTED IN JIM FALLS
Jul 6, 7:00 AM CDTHEAVY RAIN 4.22 N Menomonie, WIFIELDS AND DITCHES FLOODED
Jul 6, 8:00 AM CDTHEAVY RAIN 3.09Bloomer, WI
Jul 6, 8:45 AM CDTFLASH FLOODKnapp, WILAW ENFORCEMENT REPORTED US HWY 12 NEAR KNAPP IS CLOSED DUE TO FLOODING.
Jul 6, 8:48 AM CDTHEAVY RAIN 4.93 Ese Wheeler, WIREPORTED 1 MILES N OF HWY 170 AND CTY RD. D INTERSECTION.

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, 10.8 hours before the alert went out and 163 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 2015-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1489 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 2015-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 115 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
1489 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
1240 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
115 m²/s²
0-3 km storm-relative helicity
253 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.0

Open this sounding in Storm Lab

The text

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

267 
WGUS53 KMPX 061045
FFWMPX
WIC017-033-035-061345-
/O.NEW.KMPX.FF.W.0005.150706T1045Z-150706T1345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
545 AM CDT MON JUL 6 2015

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CHIPPEWA COUNTY IN WEST CENTRAL WISCONSIN...
  DUNN COUNTY IN WEST CENTRAL WISCONSIN...
  NORTHERN EAU CLAIRE COUNTY IN WEST CENTRAL WISCONSIN...

* UNTIL 845 AM CDT
    
* AT 543 AM CDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. DOPPLER RADAR HAS INDICATED 2 TO 4 
  INCHES OF RAIN INCHES OF RAIN HAS FALLEN ACROSS MUCH OF DUNN COUNTY. 
  FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY...ESPECIALLY NEAR THE CITIES
  OF MENOMIE...CHIPPEWA FALLS...AND EAU CLAIRE.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  EAU CLAIRE...MENOMONIE...CHIPPEWA FALLS...ALTOONA...LAKE HALLIE...
  STANLEY...BLOOMER...LAKE WISSOTA...CORNELL...CADOTT...FALL CREEK
  AND COLFAX.

THIS INCLUDES INTERSTATE 94 IN WISCONSIN BETWEEN MILE MARKERS 32 AND
75.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

&&

LAT...LON 4473 9214 4512 9213 4522 9093 4488 9092
      4472 9093

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 5, 8:54 PM CDTFlash Flood WatchMPXBarron, Dunn, Pierce, Polk, Saint Croix16 hr
Jul 6, 3:13 AM CDTFlash Flood WarningMPXPierce, Saint Croix2 hr
Jul 6, 5:31 AM CDTSpecial Weather StatementMPXEau Claire104 min
Jul 6, 5:35 AM CDTFlash Flood WarningMPXPierce, Saint Croix5 hr
Jul 6, 8:50 AM CDTAreal Flood WarningMPXChippewa, Dunn, Eau Claire3 hr

Nearby

Flash Flood Warnings in Wisconsin, 2015Every flash flood warning in 2015

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.