Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 77, NWS Twin Cities, MN

July 18, 2020Barron County, Rusk County, Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 18, 2020, 10:29 PM CDT for Barron County, Rusk County, Wisconsin. It was in force for 31 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 18, 2020, 10:29 PM CDT (03:29 UTC)
Expired
Jul 18, 2020, 11:00 PM CDT
In force
31 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Barron County, WI, Rusk County, WI

The radar

The Duluth radar (KDLH), 148 km from the middle of the area, began a volume at 03:31 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 18, 3:53 PM CDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 3.5 hours before the alert went out and 171 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 2020-07-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3128 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 2020-07-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 67 square meters per square second.19395878Sfc1 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
3128 J/kg
Mixed-layer CIN
-138 J/kg
Mixed-layer LCL
1246 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
67 m²/s²
0-3 km storm-relative helicity
11 m²/s²
Significant tornado parameter
0.3
Supercell composite
6.5

Open this sounding in Storm Lab

The text

As transmitted.

396 
WUUS53 KMPX 190329
SVRMPX
WIC005-107-190400-
/O.NEW.KMPX.SV.W.0077.200719T0329Z-200719T0400Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
1029 PM CDT Sat Jul 18 2020

The National Weather Service in The Twin Cities has issued a

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

* Until 1100 PM CDT.

* At 1029 PM CDT, a severe thunderstorm was located near Birchwood,
  or 9 miles northeast of Rice Lake, moving northeast at 65 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, Haugen, Mikana and Brill. 

This includes U.S. Highway 53 between mile markers 144 and 152.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4545 9164 4563 9200 4564 9197 4564 9108
TIME...MOT...LOC 0329Z 239DEG 56KT 4558 9157 

HAIL...1.00IN
WIND...60MPH
 
$$

BPH
3 follow-up statements
415 
WWUS53 KMPX 190338
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1038 PM CDT Sat Jul 18 2020

WIC005-107-190400-
/O.CON.KMPX.SV.W.0077.000000T0000Z-200719T0400Z/
Rusk WI-Barron WI-
1038 PM CDT Sat Jul 18 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 PM CDT
FOR NORTHWESTERN RUSK AND NORTHEASTERN BARRON COUNTIES...

At 1038 PM CDT, a severe thunderstorm was located near Birchwood, or
12 miles northeast of Rice Lake, moving northeast at 55 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...
Brill and Mikana. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4549 9153 4564 9183 4564 9108
TIME...MOT...LOC 0338Z 238DEG 50KT 4560 9153 

HAIL...1.00IN
WIND...60MPH
 
$$

BPH
485 
WWUS53 KMPX 190348
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1048 PM CDT Sat Jul 18 2020

WIC005-190357-
/O.CAN.KMPX.SV.W.0077.000000T0000Z-200719T0400Z/
Barron WI-
1048 PM CDT Sat Jul 18 2020

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN BARRON COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area.  Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until midnight CDT for
northwestern Wisconsin.

LAT...LON 4552 9143 4564 9154 4564 9108
TIME...MOT...LOC 0347Z 239DEG 53KT 4564 9138 

$$

WIC107-190400-
/O.CON.KMPX.SV.W.0077.000000T0000Z-200719T0400Z/
Rusk WI-
1048 PM CDT Sat Jul 18 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 PM CDT
FOR NORTHWESTERN RUSK COUNTY...

At 1047 PM CDT, a severe thunderstorm was located 7 miles west of
Exeland, or 18 miles northwest of Ladysmith, moving northeast at 60
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.

This severe thunderstorm will remain over mainly rural areas of
northwestern Rusk County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4552 9143 4564 9154 4564 9108
TIME...MOT...LOC 0347Z 239DEG 53KT 4564 9138 

HAIL...1.00IN
WIND...60MPH
 
$$

BPH
482 
WWUS53 KMPX 190356
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1056 PM CDT Sat Jul 18 2020

WIC107-190406-
/O.EXP.KMPX.SV.W.0077.000000T0000Z-200719T0400Z/
Rusk WI-
1056 PM CDT Sat Jul 18 2020

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN RUSK COUNTY WILL
EXPIRE AT 1100 PM CDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.  However heavy rain is still possible with this
thunderstorm.

A Severe Thunderstorm Watch remains in effect until midnight CDT for
northwestern Wisconsin.

LAT...LON 4552 9143 4564 9154 4564 9108
TIME...MOT...LOC 0356Z 240DEG 53KT 4565 9125 

$$

BPH

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 18, 7:07 PM CDTSpecial Weather StatementMPXPolk38 min
Jul 18, 9:53 PM CDTTornado WarningMPXPierce, Saint Croix37 min
Jul 19, 12:10 AM CDTSpecial Weather StatementMPXChippewa35 min
Jul 19, 12:13 AM CDTSpecial Weather StatementMPXEau Claire47 min
Jul 19, 12:35 AM CDTSevere Thunderstorm WarningMPXEau Claire13 min
Jul 19, 1:03 AM CDTSpecial Weather StatementMPXEau Claire27 min
Jul 19, 1:13 AM CDTSpecial Weather StatementMPXChippewa17 min
Jul 19, 1:19 AM CDTSevere Thunderstorm WarningMPXChippewa14 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2020Every severe thunderstorm warning in 2020

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.