Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 98, NWS Twin Cities, MN

July 12, 2018Barron County, Chippewa County, Rusk County, Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 12, 2018, 6:44 PM CDT for Barron County, Chippewa County, Rusk County, Wisconsin. It was in force for 46 min. 1 report 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 12, 2018, 6:44 PM CDT (23:44 UTC)
Expired
Jul 12, 2018, 7:30 PM CDT
In force
46 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Barron County, WI, Chippewa County, WI, Rusk County, WI

The radar

The Minneapolis radar (KMPX), 159 km from the middle of the area, began a volume at 23:45 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 12, 6:48 PM CDTTSTM WND DMGDallas, WITREES AND POWER LINES DOWN NEAR DALLAS WI. TIME ESTIMATED FROM RADAR.

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 12, 5:04 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 11.7 hours before the alert went out and 162 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 2018-07-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 745 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 2018-07-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 387 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
745 J/kg
Mixed-layer CIN
-244 J/kg
Mixed-layer LCL
1291 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
387 m²/s²
0-3 km storm-relative helicity
437 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.3

Open this sounding in Storm Lab

The text

As transmitted.

348 
WUUS53 KMPX 122344
SVRMPX
WIC005-017-107-130030-
/O.NEW.KMPX.SV.W.0098.180712T2344Z-180713T0030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
644 PM CDT THU JUL 12 2018

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Western Rusk County in northwestern Wisconsin...
  Northwestern Chippewa County in west central Wisconsin...
  Southeastern Barron County in northwestern Wisconsin...

* Until 730 PM CDT.

* At 644 PM CDT, a severe thunderstorm was located near Dallas, or 13
  miles south of Rice Lake, moving east at 35 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Rice Lake, Barron, Chetek, Cameron, Bruce, New Auburn, Dallas,
  Weyerhaeuser, Sumner, Canton, Hillsdale and Island Lake.

This includes U.S. Highway 53 between mile markers 115 and 140.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4518 9167 4521 9167 4521 9186 4540 9198
      4559 9131 4512 9124
TIME...MOT...LOC 2344Z 267DEG 30KT 4529 9176 

HAIL...1.00IN
WIND...60MPH
 
$$
2 follow-up statements
286 
WWUS53 KMPX 122358
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
658 PM CDT THU JUL 12 2018

WIC005-017-107-130030-
/O.CON.KMPX.SV.W.0098.000000T0000Z-180713T0030Z/
Rusk WI-Chippewa WI-Barron WI-
658 PM CDT THU JUL 12 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR WESTERN RUSK...NORTHWESTERN CHIPPEWA AND SOUTHEASTERN BARRON
COUNTIES...

At 658 PM CDT, a severe thunderstorm was located near Chetek, or 15
miles southeast of Rice Lake, moving east at 35 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Rice Lake, Barron, Chetek, Cameron, Bruce, New Auburn, Weyerhaeuser,
Sumner, Canton, Rice Lake Airport, Island Lake and Chippewa Moraine
State Rec Area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4518 9167 4521 9167 4528 9178 4540 9198
      4559 9131 4512 9124
TIME...MOT...LOC 2358Z 267DEG 30KT 4530 9159 

HAIL...1.00IN
WIND...60MPH
 
$$
948 
WWUS53 KMPX 130016
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
716 PM CDT THU JUL 12 2018

WIC005-017-107-130030-
/O.CON.KMPX.SV.W.0098.000000T0000Z-180713T0030Z/
Rusk WI-Chippewa WI-Barron WI-
716 PM CDT THU JUL 12 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR WESTERN RUSK...NORTHWESTERN CHIPPEWA AND SOUTHEASTERN BARRON
COUNTIES...

At 716 PM CDT, a severe thunderstorm was located over Island Lake, or
17 miles southwest of Ladysmith, moving east at 35 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Rice Lake, Chetek, Bruce, New Auburn, Weyerhaeuser, Sumner, Canton,
Island Lake and Chippewa Moraine State Rec Area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4517 9158 4531 9166 4546 9176 4559 9131
      4512 9124
TIME...MOT...LOC 0016Z 267DEG 30KT 4531 9137 

HAIL...0.75IN
WIND...60MPH
 
$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 12, 7:25 AM CDTSpecial Weather StatementMPXBarron, Polk2 hr
Jul 12, 11:44 AM CDTSpecial Weather StatementMPXPolk31 min
Jul 12, 4:52 PM CDTSpecial Weather StatementMPXPolk53 min
Jul 12, 5:18 PM CDTSevere Thunderstorm WarningMPXPolk, Saint Croix27 min
Jul 12, 6:11 PM CDTSpecial Weather StatementMPXBarron49 min
Jul 12, 6:29 PM CDTSpecial Weather StatementMPXBarron46 min
Jul 12, 6:33 PM CDTSpecial Weather StatementMPXSaint Croix42 min
Jul 12, 6:51 PM CDTSpecial Weather StatementMPXBarron, Rusk84 min
Jul 12, 6:57 PM CDTFlash Flood WarningMPXBarron3 hr

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2018Every severe thunderstorm warning in 2018

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.