Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 43, NWS Twin Cities, MN

May 23, 2007Chippewa County, Rusk County, Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at May 23, 2007, 6:04 PM CDT for Chippewa County, Rusk County, Wisconsin. It was in force for 56 min. 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: May 23, 2007, 6:04 PM CDT (23:04 UTC)
Expired: May 23, 2007, 7:00 PM CDT
In force: 56 min
Issued by: NWS Twin Cities, MN
Area: Counties, with a storm outline in the text

Counties Chippewa County, WI, Rusk County, WI

The radar

The La Crosse radar (KARX), 169 km from the middle of the area, began a volume at 23:05 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

Time	Report	Where	Remark
May 23, 6:05 PM CDT	TSTM WND GST 58	6 N Weyerhaeuser, WI	NUMEROUS SMALL TREES AND ONE INCH TREE LIMBS SEVERED.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 23, 2:58 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 11.1 hours before the alert went out and 184 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: 84 J/kg
Mixed-layer CIN: -48 J/kg
Mixed-layer LCL: 811 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 141 m²/s²
0-3 km storm-relative helicity: 164 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 
WUUS53 KMPX 232304
SVRMPX
WIC017-107-240000-
/O.NEW.KMPX.SV.W.0043.070523T2304Z-070524T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
604 PM CDT WED MAY 23 2007

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  RUSK COUNTY IN NORTHWEST WISCONSIN...
  CHIPPEWA COUNTY IN WEST CENTRAL WISCONSIN...

* UNTIL 700 PM CDT

* AT 559 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM... 
  CAPABLE OF PRODUCING LARGE HAIL AND DAMAGING WINDS IN EXCESS OF 65 
  MPH. THIS STORM WAS LOCATED 9 MILES NORTHWEST OF BLOOMER...OR      
  ABOUT 21 MILES SOUTHEAST OF RICE LAKE...AND MOVING EAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  WEYERHAEUSER...
  BRUCE...
  CORNELL...
  LADYSMITH...
  ISLAND LAKE...

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE
WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE
SUCH AS A BASEMENT OR SMALL INTERIOR ROOM IF A TORNADO IS SPOTTED.

STAY INDOORS...AND AWAY FROM WINDOWS.

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

LAT...LON 4550 9153 4522 9154 4507 9161 4517 9095
      4559 9098

$$

MB

1 follow-up statement

000 
WWUS53 KMPX 240004
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
704 PM CDT WED MAY 23 2007

WIC017-107-240014-
/O.EXP.KMPX.SV.W.0043.000000T0000Z-070524T0000Z/
RUSK WI-CHIPPEWA WI-
704 PM CDT WED MAY 23 2007

...THE SEVERE THUNDERSTORM WARNING FOR CHIPPEWA AND RUSK COUNTIES
EXPIRED AT 700 PM CDT...

SEVERE STORMS HAVE ENDED OR MOVED OUT OF COUNTY. HOWEVER...MORE
THUNDERSTORMS WERE DEVELOPING IN THE AREA...REMAIN ALERT FOR POSSIBLE
ADDITIONAL WARNINGS.

LAT...LON 4550 9153 4522 9154 4507 9161 4517 9095
      4559 9098

$$

MB

The office that day

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

Issued	Product	Office	Counties	Lasted
May 23, 3:22 PM CDT	Severe Thunderstorm Warning	MPX	Polk	53 min
May 23, 4:07 PM CDT	Tornado Warning	MPX	Polk	38 min
May 23, 4:24 PM CDT	Severe Thunderstorm Warning	MPX	Barron	66 min
May 23, 4:29 PM CDT	Severe Thunderstorm Warning	MPX	Saint Croix	61 min
May 23, 4:31 PM CDT	Severe Thunderstorm Warning	MPX	Pierce	59 min
May 23, 4:48 PM CDT	Tornado Warning	MPX	Polk	27 min
May 23, 5:12 PM CDT	Severe Thunderstorm Warning	MPX	Dunn	63 min
May 23, 5:27 PM CDT	Severe Thunderstorm Warning	MPX	Barron	48 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2007 Every severe thunderstorm 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.