Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 240, NWS Twin Cities, MN

July 23, 2005Polk County, Saint Croix County, Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 23, 2005, 10:58 AM CDT for Polk County, Saint Croix County, Wisconsin. It was in force for 62 min. 2 reports 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
Jul 23, 2005, 10:58 AM CDT (15:58 UTC)
Expired
Jul 23, 2005, 12:00 PM CDT
In force
62 min
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

Counties Polk County, WI, Saint Croix County, WI

The radar

The Minneapolis radar (KMPX), 97 km from the middle of the area, began a volume at 16:00 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

TimeReportWhereRemark
Jul 23, 11:45 AM CDTTSTM WND DMGGlenwood City, WITREES DOWN
Jul 23, 11:45 AM CDTTSTM WND DMGRoberts, WIPOWER LINES DOWN

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.

IssuedProductOfficeLasted
Jul 23, 10:15 AM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 4.0 hours before the alert went out and 99 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 12:00Z on 2005-07-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 883 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 12:00Z on 2005-07-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 102 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
883 J/kg
Mixed-layer CIN
-215 J/kg
Mixed-layer LCL
1174 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
102 m²/s²
0-3 km storm-relative helicity
255 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.8

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KMPX 231558
SVRMPX
WIC095-109-231700-
/O.NEW.KMPX.SV.W.0240.050723T1558Z-050723T1700Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1058 AM CDT SAT JUL 23 2005

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  POLK COUNTY IN NORTHWEST WISCONSIN
  ST. CROIX COUNTY IN WEST CENTRAL WISCONSIN

* UNTIL NOON CDT

* AT 1056 AM CDT...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 12 MILES
  NORTHWEST OF NEW RICHMOND TO 19 MILES SOUTHWEST OF NEW RICHMOND...
  AND MOVING EAST AT 55 MPH.

* LOCATIONS IMPACTED INCLUDE...
  NEW RICHMOND...
  BALSAM LAKE...
  AMERY...
  HUDSON...
  SOMERSET...
  OSCEOLA...
  CLEAR LAKE...
  GLENWOOD CITY...

THIS IS A DANGEROUS STORM THAT HAS A HISTORY OF PRODUCING VERY 
DAMAGING WINDS. IF YOU ARE IN ITS PATH...PREPARE IMMEDIATELY FOR 
DAMAGING WINDS. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY 
INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

LAT...LON 4545 9262 4488 9273 4487 9215 4550 9219

$$

KAT
2 follow-up statements
000 
WWUS53 KMPX 231636
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1134 AM CDT SAT JUL 23 2005

WIC095-109-231700-
/O.CON.KMPX.SV.W.0240.000000T0000Z-050723T1700Z/
POLK WI-ST. CROIX WI-
1134 AM CDT SAT JUL 23 2005

...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL NOON CDT FOR ST.
CROIX AND POLK COUNTIES...

AT 1115 AM CDT...POWER LINES WERE REPORTED DOWNED IN ST CROIX FALLS 
WITH THIS STORM. THIS IS A DANGEROUS STORM...SEEK SAFE SHELTER AND 
STAY AWAY FROM WINDOWS

AT 1130 AM CDT...THESE STORMS WERE LOCATED ALONG A LINE EXTENDING 
FROM 17 MILES NORTHEAST OF AMERY TO 7 MILES WEST OF MENOMONIE... 
MOVING EAST AT 50 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE RANGE...LITTLE FALLS...
HERSEY...FOREST...EMERALD...DERONDA...CYLON...WOODVILLE...HAMMOND...
GLENWOOD CITY...DEER PARK...CLEAR LAKE...BALDWIN AND AMERY.

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

LAT...LON 4547 9245 4487 9247 4487 9215 4549 9218

$$

KAT
000 
WWUS53 KMPX 231657
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1156 AM CDT SAT JUL 23 2005

WIC095-109-231706-
/O.EXP.KMPX.SV.W.0240.000000T0000Z-050723T1700Z/
POLK WI-ST. CROIX WI-
1156 AM CDT SAT JUL 23 2005

...THE SEVERE THUNDERSTORM WARNING FOR ST. CROIX AND POLK COUNTIES
WILL EXPIRE AT NOON CDT...

THE STORMS THAT PROMPTED THE WARNING FOR ST CROIX AND POLK COUNTIES 
HAVE MOVED EAST OF THE AREA. THEREFORE...THE SEVERE THUNDERSTORM 
WARNING WILL BE ALLOWED TO EXPIRE.

PRIOR TO MOVING OUT OF THE COUNTIES...NUMEROUS TREES AND POWER LINES 
WERE REPORTED DOWNED ACROSS THESE COUNTIES.

LAT...LON 4547 9245 4487 9247 4487 9215 4549 9218

$$

KAT

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 23, 11:08 AM CDTSevere Thunderstorm WarningMPXPierce67 min
Jul 23, 11:24 AM CDTSevere Thunderstorm WarningMPXBarron, Dunn66 min
Jul 23, 11:54 AM CDTSevere Thunderstorm WarningMPXChippewa, Eau Claire, Pepin66 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.