Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 209, NWS Twin Cities, MN

September 22, 2017Barron County, Rusk County, Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 22, 2017, 9:49 AM CDT for Barron County, Rusk County, Wisconsin. It was in force for 26 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
Sep 22, 2017, 9:49 AM CDT (14:49 UTC)
Expired
Sep 22, 2017, 10:15 AM CDT
In force
26 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

Counties Barron County, WI, Rusk County, WI

The radar

The Duluth radar (KDLH), 165 km from the middle of the area, began a volume at 14:50 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 nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 2.8 hours before the alert went out and 205 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 2017-09-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2205 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 2017-09-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 325 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
2205 J/kg
Mixed-layer CIN
-218 J/kg
Mixed-layer LCL
905 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
325 m²/s²
0-3 km storm-relative helicity
331 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

697 
WUUS53 KMPX 221449
SVRMPX
WIC005-107-221515-
/O.NEW.KMPX.SV.W.0209.170922T1449Z-170922T1515Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
949 AM CDT FRI SEP 22 2017

The National Weather Service in The Twin Cities has issued a

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

* Until 1015 AM CDT

* At 948 AM CDT, a severe thunderstorm was located 7 miles northeast
  of Canton, or 9 miles east of Rice Lake, moving northeast at 50
  mph.

  HAZARD...Quarter size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Damage to vehicles is expected. 

* This severe thunderstorm will remain over mainly rural areas of
  northern Rusk and east central Barron Counties, including the
  following locations: Canton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This storm is producing large hail. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows!

&&

LAT...LON 4563 9067 4538 9143 4538 9159 4546 9172
      4564 9146 4564 9069
TIME...MOT...LOC 1448Z 235DEG 45KT 4549 9154 

HAIL...1.00IN
WIND...<50MPH
 
$$
1 follow-up statement
575 
WWUS53 KMPX 221458
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
958 AM CDT FRI SEP 22 2017

WIC005-221507-
/O.CAN.KMPX.SV.W.0209.000000T0000Z-170922T1515Z/
Barron WI-
958 AM CDT FRI SEP 22 2017

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

LAT...LON 4563 9067 4539 9142 4542 9154 4556 9154
      4564 9146 4564 9069
TIME...MOT...LOC 1457Z 236DEG 44KT 4553 9141 

$$

WIC107-221515-
/O.CON.KMPX.SV.W.0209.000000T0000Z-170922T1515Z/
Rusk WI-
958 AM CDT FRI SEP 22 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 AM CDT
FOR NORTHERN RUSK COUNTY...

At 957 AM CDT, a severe thunderstorm was located 7 miles north of
Weyerhaeuser, or 15 miles west of Ladysmith, moving northeast at 50
mph.

HAZARD...60 mph wind gusts and half dollar size hail. 

SOURCE...Radar indicated. 

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

Locations impacted include...
Bruce and Weyerhaeuser. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4563 9067 4539 9142 4542 9154 4556 9154
      4564 9146 4564 9069
TIME...MOT...LOC 1457Z 236DEG 44KT 4553 9141 

HAIL...1.25IN
WIND...60MPH
 
$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 22, 7:05 AM CDTSpecial Weather StatementMPXBarron40 min
Sep 22, 10:19 AM CDTSpecial Weather StatementMPXRusk26 min
Sep 22, 10:37 AM CDTSpecial Weather StatementMPXBarron23 min
Sep 22, 11:39 AM CDTSpecial Weather StatementMPXRusk21 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.