Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 141, NWS Twin Cities, MN

August 27, 2018Barron County, Rusk County, Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 27, 2018, 6:41 PM CDT for Barron County, Rusk County, Wisconsin. It was in force for 36 min. 4 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: Aug 27, 2018, 6:41 PM CDT (23:41 UTC)
Expired: Aug 27, 2018, 7:17 PM CDT
In force: 36 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Barron County, WI, Rusk County, WI

The radar

The La Crosse radar (KARX), 173 km from the middle of the area, began a volume at 23:41 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

Time	Report	Where	Remark
Aug 27, 6:49 PM CDT	TSTM WND DMG	Chetek, WI	TREES DOWN ACROSS TOWN. RELAYED FROM DISPATCH CENTER. TIME ESTIMATED FROM RADAR.
Aug 27, 6:55 PM CDT	TSTM WND DMG	Weyerhaeuser, WI	TREE DOWN ACROSS ROAD. REPORT RELAYED VIA DISPATCH. TIME ESTIMATED FROM RADAR.
Aug 27, 7:13 PM CDT	TSTM WND DMG	Conrath, WI	TREE DOWN ACROSS ROAD. REPORT RELAYED VIA DISPATCH. TIME ESTIMATED FROM RADAR.
Aug 27, 7:15 PM CDT	TSTM WND DMG	Glen Flora, WI	TREE DOWN BLOCKING ROAD. REPORT RELAYED VIA DISPATCH. 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.

Issued	Product	Office	Lasted
Aug 27, 2:57 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 11.7 hours before the alert went out and 184 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: 1465 J/kg
Mixed-layer CIN: -96 J/kg
Mixed-layer LCL: 698 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 232 m²/s²
0-3 km storm-relative helicity: 249 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 4.7

Open this sounding in Storm Lab

The text

As transmitted.

737 
WUUS53 KMPX 272341
SVRMPX
WIC005-107-280100-
/O.NEW.KMPX.SV.W.0141.180827T2341Z-180828T0100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
641 PM CDT MON AUG 27 2018

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Rusk County in northwestern Wisconsin...
  Barron County in northwestern Wisconsin...

* Until 800 PM CDT.

* At 640 PM CDT, severe thunderstorms were located along a line
  extending from near Clayton to near Sand Creek to near Colfax,
  moving northeast at 60 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Severe thunderstorms will be near...
  Barron and Cumberland around 655 PM CDT.
  Rice Lake around 700 PM CDT.
  Haugen and Weyerhaeuser around 705 PM CDT.
  Bruce around 715 PM CDT.
  Ladysmith around 720 PM CDT.
  Sheldon around 725 PM CDT.
  Hawkins around 740 PM CDT.

Other locations impacted by these severe thunderstorms include
Cumberland Airport, Tony, Hillsdale, Island Lake, Conrath, Ingram,
Brill, Glen Flora, Rice Lake Airport and Sumner.

This includes U.S. Highway 53 between mile markers 120 and 152.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a DANGEROUS SITUATION. These storms are producing widespread
wind damage. SEEK SHELTER NOW inside a sturdy structure and stay 
away from windows! 
&&

LAT...LON 4538 9092 4530 9093 4529 9095 4529 9153
      4521 9155 4521 9192 4527 9198 4536 9181
      4554 9208 4564 9193 4564 9068 4538 9068
TIME...MOT...LOC 2340Z 225DEG 51KT 4535 9213 4512 9171 4496 9164 

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

BORGHOFF

2 follow-up statements

419 
WWUS53 KMPX 280001
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
701 PM CDT MON AUG 27 2018

WIC005-107-280100-
/O.CON.KMPX.SV.W.0141.000000T0000Z-180828T0100Z/
Rusk WI-Barron WI-
701 PM CDT MON AUG 27 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CDT
FOR RUSK AND NORTHERN BARRON COUNTIES...

At 701 PM CDT, severe thunderstorms were located along a line
extending from near Cumberland Airport to Weyerhaeuser to near
Chippewa Moraine State Rec Area, moving northeast at 65 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

These severe storms will be near...
  Weyerhaeuser around 705 PM CDT.
  Bruce around 710 PM CDT.
  Ladysmith around 720 PM CDT.

Other locations impacted by these severe thunderstorms include
Cumberland Airport, Tony, Rice Lake Airport, Island Lake, Sumner,
Mikana, Conrath, Rusk County Airport, Canton and Ingram.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4538 9092 4530 9093 4529 9095 4529 9153
      4536 9181 4554 9208 4564 9193 4564 9068
      4538 9068
TIME...MOT...LOC 0001Z 220DEG 58KT 4552 9187 4541 9143 4520 9132 

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

BORGHOFF

647 
WWUS53 KMPX 280017
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
717 PM CDT MON AUG 27 2018

WIC005-107-280027-
/O.CAN.KMPX.SV.W.0141.000000T0000Z-180828T0100Z/
Rusk WI-Barron WI-
717 PM CDT MON AUG 27 2018

...THE SEVERE THUNDERSTORM WARNING FOR RUSK AND NORTHERN BARRON
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 heavy rain is
still possible with these thunderstorms.

A Severe Thunderstorm Watch remains in effect until 1000 PM CDT for
northwestern and west central Wisconsin.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
The Twin Cities.

LAT...LON 4538 9092 4530 9093 4529 9095 4529 9153
      4536 9181 4554 9208 4564 9193 4564 9068
      4538 9068
TIME...MOT...LOC 0016Z 225DEG 51KT 4565 9168 4554 9124 4533 9113 

$$

BORGHOFF

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 27, 1:53 AM CDT	Special Weather Statement	MPX	Dunn, Pepin, Pierce, Saint Croix	67 min
Aug 27, 3:09 AM CDT	Special Weather Statement	MPX	Barron, Chippewa, Dunn, Eau Claire, Pepin, Rusk	36 min
Aug 27, 5:47 PM CDT	Severe Thunderstorm Warning	MPX	Dunn, Pepin, Pierce, Saint Croix	58 min
Aug 27, 6:03 PM CDT	Severe Thunderstorm Warning	MPX	Barron, Polk, Saint Croix	57 min
Aug 27, 6:20 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Dunn, Eau Claire, Pepin	55 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2018 Every 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.