Alert archive / Wisconsin / Flash Flood Warnings in 2002

Flash Flood Warning 13, NWS Twin Cities, MN

June 25, 2002Chippewa County, Wisconsin

NWS Twin Cities, MN issued this flash flood warning at Jun 25, 2002, 9:37 PM CDT for Chippewa County, Wisconsin. It was in force for 4 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: Jun 25, 2002, 9:37 PM CDT (02:37 UTC)
Expired: Jun 26, 2002, 1:30 AM CDT
In force: 4 hr
Issued by: NWS Twin Cities, MN
Area: Counties, with a storm outline in the text

County Chippewa County, WI

The radar

The La Crosse radar (KARX), 143 km from the middle of the area, began a volume at 02:41 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, 2.6 hours before the alert went out and 190 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: 4448 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 1086 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 57 m²/s²
0-3 km storm-relative helicity: 116 m²/s²
Significant tornado parameter: 2.4
Supercell composite: 16.3

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KMPX 260237
FFWMSP
WIC017-260630-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
936 PM CDT TUE JUN 25 2002

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CHIPPEWA COUNTY IN WEST CENTRAL WISCONSIN

* UNTIL 130 AM CDT

* AT 936 PM CDT...RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAIN 
OVER THE WARNED AREA.  RADAR HAS ESTIMATED THAT 2 TO 3 INCHES OF 
RAIN MAY HAVE ALREADY FALLEN ACROSS PORTIONS OF NORTHERN CHIPPEWA 
COUNTY.  MORE THUNDERSTORMS WILL CONTINUE ACROSS CHIPPEWA COUNTY 
UNTIL AROUND MIDNIGHT.

*

ABSOLUTELY DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER
COVERS THE ROADWAY. VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED. MOVE TO HIGHER GROUND.

LAT...LON 4526 9099 4490 9101 4490 9158 4523 9149

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 25, 8:00 PM CDT	Tornado Warning	MPX	Polk, Saint Croix	30 min
Jun 25, 8:19 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa	41 min
Jun 25, 8:34 PM CDT	Severe Thunderstorm Warning	MPX	Barron, Dunn, Polk, Saint Croix	56 min
Jun 25, 9:00 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa	60 min
Jun 25, 9:07 PM CDT	Severe Thunderstorm Warning	MPX	Pierce	38 min
Jun 25, 9:08 PM CDT	Severe Thunderstorm Warning	MPX	Rusk	52 min
Jun 25, 9:29 PM CDT	Severe Thunderstorm Warning	MPX	Dunn	46 min
Jun 25, 9:49 PM CDT	Severe Thunderstorm Warning	MPX	Pierce	41 min
Jun 25, 9:53 PM CDT	Severe Thunderstorm Warning	MPX	Eau Claire, Pepin	37 min
Jun 25, 10:23 PM CDT	Flash Flood Warning	MPX	Dunn	3 hr
Jun 25, 10:50 PM CDT	Flash Flood Warning	MPX	Eau Claire, Pepin	3 hr

Nearby

Flash Flood Warnings in Wisconsin, 2002 Every flash flood warning in 2002

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.