Alert archive / Wisconsin / Flash Flood Warnings in 2007

Flash Flood Warning 2, NWS Twin Cities, MN

October 5, 2007Dunn County, Saint Croix County, Wisconsin

NWS Twin Cities, MN issued this flash flood warning at Oct 5, 2007, 2:27 AM CDT for Dunn County, Saint Croix County, Wisconsin. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Oct 5, 2007, 2:27 AM CDT (07:27 UTC)
Expired: Oct 5, 2007, 5:30 AM CDT
In force: 3 hr
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Flood severity: None

Counties Dunn County, WI, Saint Croix County, WI

The radar

The Minneapolis radar (KMPX), 103 km from the middle of the area, began a volume at 07:28 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.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 7.5 hours before the alert went out and 105 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1512 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 59 m²/s²
0-3 km storm-relative helicity: 178 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KMPX 050730
FFWMPX
WIC033-109-051030-
/O.NEW.KMPX.FF.W.0002.071005T0727Z-071005T1030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
227 AM CDT FRI OCT 5 2007

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  ST. CROIX COUNTY IN WEST CENTRAL WISCONSIN...
  DUNN COUNTY IN WEST CENTRAL WISCONSIN...

* UNTIL 530 AM CDT

* AT 227 AM CDT...RADAR DETECTED THUNDERSTORMS PRODUCING VERY HEAVY
  RAIN ACROSS MUCH OF THE WARNED AREA. RADAR ESTIMATES 2 TO 3 INCHES 
  OF RAIN HAS FALLEN OVER THE AREA SINCE MIDNIGHT. THE STORMS        
  PRODUCING THE HEAVIEST RAIN WERE 3 MILES SOUTH OF BOYCEVILLE...OR  
  ABOUT 11 MILES NORTHWEST OF MENOMONIE.  THESE STORMS WERE MOVING   
  NORTHEAST AT 10 MPH. EXPECT ADDITIONAL SLOW MOVING THUNDERSTORMS   
  TO PRODUCE TORRENTIAL RAINFALL IN THE WARNED AREA. 
  
* SOME LOCATIONS THAT MAY BE AFFECTED INCLUDE...BALDWIN...COLFAX...
  ELK MOUND...GLENWOOD CITY...MENOMONIE...NEW RICHMOND AND SOMERSET.

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

LAT...LON 4519 9271 4520 9168 4487 9167 4487 9272
TIME...MOT...LOC 0727Z 240DEG 9KT 4501 9205

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 5, 3:17 AM CDT	Flash Flood Watch	MPX	Barron, Chippewa, Dunn, Pierce, Polk, Rusk and 1 more	9 hr

Nearby

Flash Flood Warnings in Wisconsin, 2007 Every flash flood warning in 2007

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.