Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 141, NWS Twin Cities, MN

June 20, 2007Rusk County, Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 20, 2007, 7:59 PM CDT for 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: Jun 20, 2007, 7:59 PM CDT (00:59 UTC)
Expired: Jun 20, 2007, 8:26 PM CDT
In force: 27 min
Issued by: NWS Twin Cities, MN
Area: Counties, with a storm outline in the text

County Rusk County, WI

The radar

The La Crosse radar (KARX), 177 km from the middle of the area, began a volume at 01:00 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.

The watch it was issued in

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

Issued	Product	Office	Lasted
Jun 20, 2:10 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 1.0 hours before the alert went out and 213 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: 551 J/kg
Mixed-layer CIN: -41 J/kg
Mixed-layer LCL: 2355 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 95 m²/s²
0-3 km storm-relative helicity: 159 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.1

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KMPX 210059
SVRMPX
WIC107-210145-
/O.NEW.KMPX.SV.W.0141.070621T0059Z-070621T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
759 PM CDT WED JUN 20 2007

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  RUSK COUNTY IN NORTHWEST WISCONSIN...

* UNTIL 845 PM CDT

* AT 758 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...
  CAPABLE OF PRODUCING NICKEL SIZE HAIL.  THIS STORM WAS LOCATED 6
  MILES SOUTH OF LADYSMITH...AND MOVING EAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  SHELDON...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT
THURSDAY MORNING FOR SOUTHERN MINNESOTA. A SEVERE THUNDERSTORM WATCH
ALSO REMAINS IN EFFECT UNTIL 1000 PM CDT WEDNESDAY EVENING FOR
NORTHWESTERN WISCONSIN.

LAT...LON 4548 9123 4530 9124 4531 9094 4539 9093
      4539 9068 4548 9072

$$

KAT

1 follow-up statement

000 
WWUS53 KMPX 210126
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
825 PM CDT WED JUN 20 2007

WIC107-210135-
/O.CAN.KMPX.SV.W.0141.000000T0000Z-070621T0145Z/
RUSK WI-
825 PM CDT WED JUN 20 2007

...THE SEVERE THUNDERSTORM WARNING FOR RUSK COUNTY IS CANCELLED...

RADAR INDICATED THAT THE SEVERE THUNDERSTORM HAD MOVED OUT OF THE 
WARNED AREA. THUS THE WARNING HAS BEEN CANCELLED. PLEASE REPORT
ANY SEVERE WEATHER INFORMATION TO YOUR LOCAL LAW ENFORCEMENT 
OFFICIALS FOR RELAY TO THE NATIONAL WEATHER SERVICE.

LAT...LON 4548 9123 4530 9124 4531 9094 4539 9093
      4539 9068 4548 9072

$$

AJZ

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 20, 7:07 PM CDT	Severe Thunderstorm Warning	MPX	Polk	38 min
Jun 20, 7:34 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa	56 min
Jun 20, 9:20 PM CDT	Severe Thunderstorm Warning	MPX	Saint Croix	55 min
Jun 20, 10:00 PM CDT	Severe Thunderstorm Warning	MPX	Pierce	60 min
Jun 20, 10:39 PM CDT	Severe Thunderstorm Warning	MPX	Pepin	51 min
Jun 20, 10:48 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Eau Claire	57 min
Jun 20, 11:11 PM CDT	Severe Thunderstorm Warning	MPX	Pierce	49 min
Jun 21, 12:58 AM CDT	Severe Thunderstorm Warning	MPX	Pepin	17 min
Jun 21, 1:39 AM CDT	Severe Thunderstorm Warning	MPX	Pepin	66 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.