Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 29, NWS Twin Cities, MN

May 16, 2017Barron County, Dunn County, Saint Croix County, Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at May 16, 2017, 5:28 PM CDT for Barron County, Dunn County, Saint Croix County, Wisconsin. It was in force for 47 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
May 16, 2017, 5:28 PM CDT (22:28 UTC)
Expired
May 16, 2017, 6:15 PM CDT
In force
47 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.5 in
Wind
50.0 mph

Counties Barron County, WI, Dunn County, WI, Saint Croix County, WI

The radar

The Minneapolis radar (KMPX), 134 km from the middle of the area, began a volume at 22:29 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
May 16, 4:02 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 10.5 hours before the alert went out and 137 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 2017-05-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 241 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 2017-05-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -35 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
241 J/kg
Mixed-layer CIN
-181 J/kg
Mixed-layer LCL
1186 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
-35 m²/s²
0-3 km storm-relative helicity
-4 m²/s²
Significant tornado parameter
0.0
Supercell composite
-1.3

Open this sounding in Storm Lab

The text

As transmitted.

932 
WUUS53 KMPX 162228
SVRMPX
WIC005-033-109-162315-
/O.NEW.KMPX.SV.W.0029.170516T2228Z-170516T2315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
528 PM CDT TUE MAY 16 2017

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Northern Dunn County in west central Wisconsin...
  Northeastern St. Croix County in west central Wisconsin...
  South central Barron County in northwestern Wisconsin...

* Until 615 PM CDT

* At 528 PM CDT, a severe thunderstorm was located over Forest, or 21
  miles northwest of Menomonie, moving northeast at 35 mph.

  HAZARD...Ping pong ball size hail. 

  SOURCE...Radar indicated. 

  IMPACT...People and animals outdoors will be injured. Expect 
           damage to roofs, siding, windows, and vehicles. 

* Locations impacted include...
  Glenwood City, Boyceville, Prairie Farm, Dallas, Wheeler,
  Ridgeland, Forest, Emerald, Sand Creek, Downing and Connorsville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and deadly cloud to ground
lightning. Seek shelter inside a well-built structure. Stay away from
windows.

&&

A tornado watch remains in effect until 1000 PM CDT for northwestern
and west central Wisconsin.

LAT...LON 4502 9207 4503 9229 4517 9230 4534 9175
      4517 9166 4512 9167 4512 9165 4504 9165
TIME...MOT...LOC 2228Z 239DEG 29KT 4511 9224 

HAIL...1.50IN
WIND...<50MPH
 
$$

ETA
2 follow-up statements
134 
WWUS53 KMPX 162245
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
545 PM CDT TUE MAY 16 2017

WIC109-162254-
/O.CAN.KMPX.SV.W.0029.000000T0000Z-170516T2315Z/
St. Croix WI-
545 PM CDT TUE MAY 16 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN ST. CROIX COUNTY
IS CANCELLED...

The storm has moved out of the warned area. Therefore, the warning 
has been cancelled.

A tornado watch remains in effect until 1000 PM CDT for northwestern
and west central Wisconsin.

LAT...LON 4504 9213 4509 9214 4512 9213 4512 9215
      4521 9216 4534 9175 4517 9166 4512 9167
      4512 9165 4508 9165
TIME...MOT...LOC 2244Z 259DEG 32KT 4515 9201 

$$

WIC005-033-162315-
/O.CON.KMPX.SV.W.0029.000000T0000Z-170516T2315Z/
Dunn WI-Barron WI-
545 PM CDT TUE MAY 16 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CDT
FOR NORTHERN DUNN AND SOUTH CENTRAL BARRON COUNTIES...

At 544 PM CDT, a severe thunderstorm was located near Connorsville,
or 17 miles north of Menomonie, moving east at 35 mph.

HAZARD...Golf ball size hail and 60 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees. 

Locations impacted include...
Boyceville, Prairie Farm, Dallas, Ridgeland, Sand Creek, Downing and
Connorsville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Prepare immediately for large hail and deadly cloud to ground
lightning. Seek shelter inside a well-built structure. Stay away from
windows.

&&

A tornado watch remains in effect until 1000 PM CDT for northwestern
and west central Wisconsin.

LAT...LON 4504 9213 4509 9214 4512 9213 4512 9215
      4521 9216 4534 9175 4517 9166 4512 9167
      4512 9165 4508 9165
TIME...MOT...LOC 2244Z 259DEG 32KT 4515 9201 

HAIL...1.75IN
WIND...60MPH
 
$$

jrb
751 
WWUS53 KMPX 162254
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
554 PM CDT TUE MAY 16 2017

WIC005-033-162315-
/O.CON.KMPX.SV.W.0029.000000T0000Z-170516T2315Z/
Dunn WI-Barron WI-
554 PM CDT TUE MAY 16 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CDT
FOR NORTHEASTERN DUNN AND SOUTH CENTRAL BARRON COUNTIES...

At 554 PM CDT, a severe thunderstorm was located over Ridgeland, or
20 miles north of Menomonie, moving northeast at 35 mph.

HAZARD...Ping pong ball size hail and 60 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees. 

Locations impacted include...
Dallas, Ridgeland and Sand Creek. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Prepare immediately for large hail and deadly cloud to ground
lightning. Seek shelter inside a well-built structure. Stay away from
windows.

&&

A tornado watch remains in effect until 1000 PM CDT for northwestern
and west central Wisconsin.

LAT...LON 4506 9194 4520 9202 4534 9175 4517 9166
      4512 9167 4512 9165 4508 9165
TIME...MOT...LOC 2254Z 239DEG 29KT 4519 9191 

HAIL...1.50IN
WIND...60MPH
 
$$

jrb

The office that day

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

IssuedProductOfficeCountiesLasted
May 16, 2:54 PM CDTFlash Flood WatchMPXChippewa, Dunn, Eau Claire, Pepin, Pierce, Rusk12 hr
May 16, 4:01 PM CDTSevere Thunderstorm WarningMPXPolk, Saint Croix44 min
May 16, 4:06 PM CDTSevere Thunderstorm WarningMPXPierce39 min
May 16, 4:38 PM CDTSevere Thunderstorm WarningMPXSaint Croix52 min
May 16, 4:39 PM CDTTornado WarningMPXBarron, Polk51 min
May 16, 4:55 PM CDTSevere Thunderstorm WarningMPXBarron, Rusk65 min
May 16, 5:05 PM CDTTornado WarningMPXBarron55 min
May 16, 5:37 PM CDTTornado WarningMPXRusk38 min
May 16, 6:01 PM CDTTornado Warning Tornado observedMPXRusk59 min
May 16, 6:10 PM CDTSevere Thunderstorm WarningMPXBarron, Chippewa, Rusk65 min
May 16, 6:14 PM CDTTornado WarningMPXChippewa35 min
May 16, 6:16 PM CDTSevere Thunderstorm WarningMPXPierce44 min
May 16, 6:58 PM CDTSevere Thunderstorm WarningMPXPepin, Pierce47 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.