Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 220, NWS Twin Cities, MN

July 17, 2005Chippewa County, Eau Claire County, Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 17, 2005, 11:20 PM CDT for Chippewa County, Eau Claire County, Wisconsin. It was in force for 26 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 17, 2005, 11:20 PM CDT (04:20 UTC)
Expired
Jul 17, 2005, 11:46 PM CDT
In force
26 min
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

Counties Chippewa County, WI, Eau Claire County, WI

The radar

The La Crosse radar (KARX), 121 km from the middle of the area, began a volume at 04:23 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, 4.3 hours before the alert went out and 207 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 2005-07-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2721 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 2005-07-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 59 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
2721 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
1391 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
59 m²/s²
0-3 km storm-relative helicity
132 m²/s²
Significant tornado parameter
0.8
Supercell composite
6.3

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KMPX 180420
SVRMPX
WIC017-035-180445-
/O.NEW.KMPX.SV.W.0220.050718T0420Z-050718T0445Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES-CHANHASSEN MN
ISSUED BY NATIONAL WEATHER SERVICE DULUTH MN
1120 PM CDT SUN JUL 17 2005

THE NATIONAL WEATHER SERVICE IN TWIN CITIES-CHANHASSEN MN HAS ISSUED
A

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

* UNTIL 1145 PM CDT

* AT 1115 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM CADOTT TO 7 MILES SOUTHWEST OF AUGUSTA...OR ALONG A LINE
  EXTENDING FROM 41 MILES WEST OF ABBOTSFORD TO 50 MILES SOUTHWEST OF
  ABBOTSFORD...AND MOVING EAST AT 40 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  BOYD AND AUGUSTA BY 1125 PM CDT
  STANLEY BY 1130 PM CDT
  FAIRCHILD BY 1135 PM CDT

LAT...LON 4509 9120 4454 9132 4462 9063 4517 9051

$$

KFM
2 follow-up statements
000 
WWUS53 KMPX 180433
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES-CHANHASSEN MN
ISSUED BY NATIONAL WEATHER SERVICE DULUTH MN
1133 PM CDT SUN JUL 17 2005

WIC017-035-180445-
/O.CON.KMPX.SV.W.0220.000000T0000Z-050718T0445Z/
CHIPPEWA WI-EAU CLAIRE WI-
1133 PM CDT SUN JUL 17 2005

...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 1145 PM CDT FOR EAU
CLAIRE AND CHIPPEWA COUNTIES...

AT 1128 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM STANLEY TO FAIRCHILD...OR ALONG A LINE EXTENDING FROM
32 MILES WEST OF ABBOTSFORD TO 42 MILES SOUTHWEST OF ABBOTSFORD...
MOVING EAST AT 40 MPH.

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

LAT...LON 4509 9120 4454 9132 4462 9063 4517 9051

$$

KFM
000 
WWUS53 KMPX 180446
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES-CHANHASSEN MN
ISSUED BY NATIONAL WEATHER SERVICE DULUTH MN
1146 PM CDT SUN JUL 17 2005

WIC017-035-180456-
/O.EXP.KMPX.SV.W.0220.000000T0000Z-050718T0445Z/
CHIPPEWA WI-EAU CLAIRE WI-
1146 PM CDT SUN JUL 17 2005

...THE SEVERE THUNDERSTORM WARNING FOR EAU CLAIRE AND CHIPPEWA 
COUNTIES EXPIRES AT 1145 PM CDT...

THE THUNDERSTORM THAT PROMPTED THE WARNING IS NO LONGER A THREAT.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.

LAT...LON 4509 9120 4454 9132 4462 9063 4517 9051

$$

KFM

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 17, 9:28 PM CDTSevere Thunderstorm WarningMPXPierce, Saint Croix34 min
Jul 17, 11:53 PM CDTSevere Thunderstorm WarningMPXEau Claire20 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2005Every severe thunderstorm warning in 2005

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.