Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 290, NWS Twin Cities, MN

September 27, 2008Chippewa County, Rusk County, Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 27, 2008, 1:15 AM CDT for Chippewa County, Rusk County, Wisconsin. It was in force for 27 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
Sep 27, 2008, 1:15 AM CDT (06:15 UTC)
Expired
Sep 27, 2008, 1:42 AM CDT
In force
27 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon

Counties Chippewa County, WI, Rusk County, WI

The radar

The La Crosse radar (KARX), 152 km from the middle of the area, began a volume at 06:17 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, 6.3 hours before the alert went out and 180 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 2008-09-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 347 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 2008-09-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 101 square meters per square second.1939Sfc1 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
347 J/kg
Mixed-layer CIN
-300 J/kg
Mixed-layer LCL
2055 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
101 m²/s²
0-3 km storm-relative helicity
292 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 270615
SVRMPX
WIC017-107-270700-
/O.NEW.KMPX.SV.W.0290.080927T0615Z-080927T0700Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
115 AM CDT SAT SEP 27 2008

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

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

* UNTIL 200 AM CDT

* AT 113 AM CDT...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS...
  CAPABLE OF PRODUCING NICKEL SIZE HAIL AND DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 7
  MILES WEST OF ISLAND LAKE TO 6 MILES NORTH OF BLOOMER TO 8 MILES
  WEST OF BLOOMER...AND MOVING EAST AT 39 MPH.

* SOME LOCATIONS INCLUDE...
  ISLAND LAKE...
  BLOOMER...
  HOLCOMBE...
  CORNELL...
  SHELDON...

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.

LAT...LON 4511 9096 4506 9165 4510 9166 4517 9165
      4519 9152 4535 9152 4537 9094
TIME...MOT...LOC 0616Z 261DEG 34KT 4534 9147 4520 9150
          4510 9162

$$
1 follow-up statement
000 
WWUS53 KMPX 270642
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
142 AM CDT SAT SEP 27 2008

WIC017-107-270651-
/O.CAN.KMPX.SV.W.0290.000000T0000Z-080927T0700Z/
RUSK WI-CHIPPEWA WI-
141 AM CDT SAT SEP 27 2008

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN CHIPPEWA AND
SOUTHWESTERN RUSK COUNTIES IS CANCELLED...

RADAR INDICATED THAT STORMS HAD WEAKENED OVER THE AREA. 
THEREFORE...THE SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED.

LAT...LON 4511 9096 4506 9165 4510 9166 4517 9165
      4519 9152 4535 9152 4537 9094
TIME...MOT...LOC 0641Z 261DEG 34KT 4538 9114 4524 9117
          4514 9129

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 26, 11:40 PM CDTSevere Thunderstorm WarningMPXBarron, Polk65 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2008Every 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.