Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 153, NWS Twin Cities, MN

July 12, 2017Chippewa County, Rusk County, Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 12, 2017, 3:41 AM CDT for Chippewa County, Rusk County, Wisconsin. It was in force for 38 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 12, 2017, 3:41 AM CDT (08:41 UTC)
Expired
Jul 12, 2017, 4:19 AM CDT
In force
38 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Chippewa County, WI, Rusk County, WI

The radar

The La Crosse radar (KARX), 178 km from the middle of the area, began a volume at 08:44 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.

IssuedProductOfficeLasted
Jul 11, 10:00 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 8.7 hours before the alert went out and 211 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 2017-07-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 913 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 2017-07-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 86 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
913 J/kg
Mixed-layer CIN
-179 J/kg
Mixed-layer LCL
1279 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
86 m²/s²
0-3 km storm-relative helicity
202 m²/s²
Significant tornado parameter
0.1
Supercell composite
4.0

Open this sounding in Storm Lab

The text

As transmitted.

907 
WUUS53 KMPX 120841
SVRMPX
WIC017-107-120945-
/O.NEW.KMPX.SV.W.0153.170712T0841Z-170712T0945Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
341 AM CDT WED JUL 12 2017

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Rusk County in northwestern Wisconsin...
  Northern Chippewa County in west central Wisconsin...

* Until 445 AM CDT

* At 341 AM CDT, severe thunderstorms were located along a line
  extending from Comstock to near Rice Lake to near Canton to near
  Bloomer, moving east at 50 mph.

  HAZARD...60 mph wind gusts. 

  SOURCE...Radar indicated. 

  IMPACT...Expect damage to roofs, siding, and trees. 

* Severe thunderstorms will be near,
  Weyerhaeuser around 350 AM CDT. 
  Cornell and Bruce around 400 AM CDT. 
  Ladysmith around 405 AM CDT. 
  Hawkins around 430 AM CDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a DANGEROUS SITUATION. These storms have a history of 
producing wind damage. SEEK SHELTER NOW inside a sturdy structure 
and stay away from windows! 

&&

LAT...LON 4537 9092 4514 9093 4519 9155 4528 9154
      4564 9154 4564 9088 4560 9074 4556 9067
      4538 9068
TIME...MOT...LOC 0841Z 265DEG 42KT 4547 9204 4555 9176 4543 9155 4513
9146

HAIL...<.75IN
WIND...60MPH
 
$$

BORGHOFF
2 follow-up statements
222 
WWUS53 KMPX 120901
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
401 AM CDT WED JUL 12 2017

WIC017-107-120945-
/O.CON.KMPX.SV.W.0153.000000T0000Z-170712T0945Z/
Rusk WI-Chippewa WI-
401 AM CDT WED JUL 12 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 AM CDT
FOR RUSK AND NORTHEASTERN CHIPPEWA COUNTIES...

At 401 AM CDT, severe thunderstorms were located along a line
extending from near Mikana to near Ladysmith to near Cornell, moving
east at 45 mph.

HAZARD...60 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...Expect damage to roofs, siding, and trees. 

These severe storms will be near...
  Ladysmith around 405 AM CDT. 
  Sheldon around 415 AM CDT. 
  Hawkins around 430 AM CDT. 

Other locations impacted by these severe thunderstorms include Tony,
Island Lake, Holcombe, Conrath, Rusk County Airport, Ingram and Glen
Flora.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4537 9092 4514 9093 4516 9119 4536 9154
      4564 9154 4564 9088 4560 9074 4556 9067
      4538 9068
TIME...MOT...LOC 0901Z 254DEG 37KT 4559 9150 4543 9117 4518 9108 

HAIL...<.75IN
WIND...60MPH
 
$$

BORGHOFF
824 
WWUS53 KMPX 120919
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
419 AM CDT WED JUL 12 2017

WIC017-107-120929-
/O.CAN.KMPX.SV.W.0153.000000T0000Z-170712T0945Z/
Rusk WI-Chippewa WI-
419 AM CDT WED JUL 12 2017

...THE SEVERE THUNDERSTORM WARNING FOR RUSK AND NORTHEASTERN CHIPPEWA
COUNTIES IS CANCELLED...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore the warning has been cancelled.  However gusty winds are
still possible with these thunderstorms.

A severe thunderstorm watch remains in effect until 600 AM CDT for
northwestern and west central Wisconsin.

LAT...LON 4537 9092 4514 9093 4516 9119 4536 9154
      4564 9154 4564 9088 4560 9074 4556 9067
      4538 9068
TIME...MOT...LOC 0918Z 265DEG 42KT 4560 9139 4544 9106 4519 9097 

$$

BORGHOFF

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 12, 2:48 AM CDTSevere Thunderstorm WarningMPXPierce, Polk, Saint Croix27 min
Jul 12, 3:17 AM CDTSevere Thunderstorm WarningMPXBarron, Polk43 min
Jul 12, 3:25 AM CDTSevere Thunderstorm WarningMPXChippewa, Dunn, Eau Claire35 min
Jul 12, 3:51 AM CDTSevere Thunderstorm WarningMPXChippewa, Eau Claire24 min
Jul 12, 4:32 PM CDTSpecial Weather StatementMPXEau Claire28 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2017Every severe thunderstorm warning in 2017

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.