Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 166, NWS Twin Cities, MN

July 19, 2011Rusk County, Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 19, 2011, 6:45 PM CDT for Rusk County, Wisconsin. It was in force for 60 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 19, 2011, 6:45 PM CDT (23:45 UTC)
Expired: Jul 19, 2011, 7:45 PM CDT
In force: 60 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

County Rusk County, WI

The radar

The La Crosse radar (KARX), 181 km from the middle of the area, began a volume at 23:46 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 19, 5:43 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 11.8 hours before the alert went out and 218 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: 5144 J/kg
Mixed-layer CIN: -30 J/kg
Mixed-layer LCL: 830 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 53 m²/s²
0-3 km storm-relative helicity: 109 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 5.2

Open this sounding in Storm Lab

The text

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

748 
WUUS53 KMPX 192345
SVRMPX
WIC107-200045-
/O.NEW.KMPX.SV.W.0166.110719T2345Z-110720T0045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
645 PM CDT TUE JUL 19 2011

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

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

* UNTIL 745 PM CDT

* AT 642 PM CDT...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS...
  CAPABLE OF PRODUCING HALF DOLLAR SIZE HAIL AND DAMAGING WINDS IN
  EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM HAWKINS TO TONY TO BRUCE...AND MOVING SOUTHEAST AT 30 MPH.

LOCATIONS IN THE WARNING INCLUDE...
  LADYSMITH...
  GLEN FLORA...
  TONY...
  BRUCE...
  ISLAND LAKE...
  WEYERHAEUSER...
  HAWKINS...
  CONRATH...
  SHELDON...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR
DAMAGING WINDS IN EXCESS OF 60 MPH AND LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

REPORT ANY SIGNIFICANT WIND OR HAIL DAMAGE TO THE NEAREST LAW
ENFORCEMENT AGENCY...FOR RELAY TO THE NATIONAL WEATHER SERVICE.

&&

LAT...LON 4537 9091 4530 9092 4530 9143 4548 9145
      4565 9095 4564 9067 4545 9066 4538 9067
TIME...MOT...LOC 2345Z 306DEG 28KT 4554 9069 4546 9096
          4540 9121
WIND...HAIL 60MPH 1.25IN

$$

DWE

1 follow-up statement

772 
WWUS53 KMPX 200010
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
710 PM CDT TUE JUL 19 2011

WIC107-200045-
/O.CON.KMPX.SV.W.0166.000000T0000Z-110720T0045Z/
RUSK WI-
710 PM CDT TUE JUL 19 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
RUSK COUNTY UNTIL 745 PM CDT...

AT 706 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG
A LINE EXTENDING FROM 11 MILES SOUTHEAST OF HAWKINS TO JUMP RIVER TO
HOLCOMBE...MOVING SOUTHEAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...SHELDON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN THE TWIN CITIES.

&&

LAT...LON 4537 9091 4530 9092 4531 9122 4543 9108
      4552 9093 4556 9067 4545 9066 4538 9067
TIME...MOT...LOC 0010Z 306DEG 28KT 4542 9046 4536 9082
          4524 9101
WIND...HAIL 60MPH 1.00IN

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 19, 4:49 PM CDT	Special Weather Statement	MPX	Rusk	41 min
Jul 19, 5:51 PM CDT	Severe Thunderstorm Warning	MPX	Barron, Rusk	54 min
Jul 19, 6:05 PM CDT	Tornado Warning	MPX	Barron, Rusk	55 min
Jul 19, 6:54 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa	66 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2011 Every severe thunderstorm warning in 2011

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.