Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 164, NWS Twin Cities, MN

July 10, 2008Eau Claire County, Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 10, 2008, 2:24 PM CDT for Eau Claire County, Wisconsin. It was in force for 51 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 10, 2008, 2:24 PM CDT (19:24 UTC)
Expired: Jul 10, 2008, 3:15 PM CDT
In force: 51 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon

County Eau Claire County, WI

The radar

The La Crosse radar (KARX), 98 km from the middle of the area, began a volume at 19:24 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 watch it was issued in

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

Issued	Product	Office	Lasted
Jul 10, 12:06 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 7.4 hours before the alert went out and 197 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: 1956 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 100 m²/s²
0-3 km storm-relative helicity: 100 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 101925
SVRMPX
WIC035-102015-
/O.NEW.KMPX.SV.W.0164.080710T1924Z-080710T2015Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
224 PM CDT THU JUL 10 2008

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAU CLAIRE COUNTY IN WEST CENTRAL WISCONSIN...

* UNTIL 315 PM CDT

* AT 219 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF
  PRODUCING PENNY SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH. 
  THIS STORM WAS LOCATED 5 MILES EAST OF BRACKETT...OR ABOUT 15 MILES
  SOUTHEAST OF EAU CLAIRE...AND MOVING EAST AT 31 MPH.
  OTHER POTENTIALLY SEVERE STORMS WERE MOVING TOWARD WESTERN 
  EAU CLAIRE COUNTY NEAR ROCK FALLS.   

* SOME LOCATIONS INCLUDE...
  AUGUSTA...
  FAIRCHILD...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR
DAMAGING WINDS AND LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 600 PM CDT
THURSDAY EVENING FOR SOUTHEASTERN MINNESOTA AND WEST CENTRAL
WISCONSIN.

LAT...LON 4458 9093 4458 9165 4485 9165 4485 9125
      4481 9092 4476 9089 4474 9090 4460 9091
TIME...MOT...LOC 1924Z 276DEG 27KT 4468 9120

$$

TRH

2 follow-up statements

000 
WWUS53 KMPX 101952
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
252 PM CDT THU JUL 10 2008

WIC035-102015-
/O.CON.KMPX.SV.W.0164.000000T0000Z-080710T2015Z/
EAU CLAIRE WI-
252 PM CDT THU JUL 10 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM CDT
FOR SOUTHERN EAU CLAIRE COUNTY IN WEST CENTRAL WISCONSIN...

AT 248 PM CDT...RADAR CONTINUED TO INDICATE A LINE OF SEVERE
THUNDERSTORMS...CAPABLE OF PRODUCING PENNY SIZE HAIL AND DAMAGING
WINDS IN EXCESS OF 60 MPH.  THESE SEVERE STORMS WERE LOCATED ALONG A
LINE EXTENDING FROM 7 MILES NORTHEAST OF AUGUSTA TO 11 MILES
SOUTHWEST OF ALLEN...AND MOVING EAST AT 60 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE FOSTER...BRACKETT...ALLEN...
FALL CREEK...FAIRCHILD AND AUGUSTA.

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR
DAMAGING WINDS AND LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.

REPORT ANY DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY...FOR RELAY
TO THE NATIONAL WEATHER SERVICE.

LAT...LON 4458 9093 4458 9165 4460 9166 4461 9164
      4464 9166 4473 9164 4481 9092 4476 9089
      4460 9091
TIME...MOT...LOC 1952Z 276DEG 52KT 4471 9092 4458 9148

$$

TRH

000 
WWUS53 KMPX 102014
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
313 PM CDT THU JUL 10 2008

WIC035-102023-
/O.EXP.KMPX.SV.W.0164.000000T0000Z-080710T2015Z/
EAU CLAIRE WI-
313 PM CDT THU JUL 10 2008

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN EAU CLAIRE COUNTY IN
WEST CENTRAL WISCONSIN EXPIRES AT 315 PM CDT...

THUNDERSTORMS HAVE WEAKENED BELOW SEVERE LEVELS...ALTHOUGH GUSTY WINDS
AND PEA SIZE HAIL REMAIN POSSIBLE THROUGH 330 PM CDT. IN ADDITION...MORE
THUNDERSTORMS REMAIN POSSIBLE THROUGH THE AFTERNOON.

LAT...LON 4458 9093 4458 9165 4460 9166 4461 9164
      4464 9166 4473 9164 4481 9092 4476 9089
      4460 9091
TIME...MOT...LOC 2013Z 276DEG 52KT 4467 9050 4455 9106

$$

TRH

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 10, 1:31 PM CDT	Severe Thunderstorm Warning	MPX	Dunn, Pierce, Saint Croix	44 min
Jul 10, 1:35 PM CDT	Tornado Warning	MPX	Pierce	25 min
Jul 10, 2:15 PM CDT	Severe Thunderstorm Warning	MPX	Dunn, Pepin	34 min
Jul 10, 6:29 PM CDT	Severe Thunderstorm Warning	MPX	Barron, Dunn, Polk, Saint Croix	61 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2008 Every severe thunderstorm warning in 2008

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.