Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 90, NWS Twin Cities, MN

June 28, 2017Pierce County, Wisconsin; Dakota County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 28, 2017, 4:06 PM CDT for Pierce County, Wisconsin; Dakota County, Minnesota. It was in force for 24 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: Jun 28, 2017, 4:06 PM CDT (21:06 UTC)
Expired: Jun 28, 2017, 4:30 PM CDT
In force: 24 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Dakota County, MN, Pierce County, WI

The radar

The Minneapolis radar (KMPX), 72 km from the middle of the area, began a volume at 21:10 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, 9.1 hours before the alert went out and 74 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: 6 J/kg
Mixed-layer CIN: -111 J/kg
Mixed-layer LCL: 537 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 511 m²/s²
0-3 km storm-relative helicity: 568 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

525 
WUUS53 KMPX 282106
SVRMPX
MNC037-WIC093-282130-
/O.NEW.KMPX.SV.W.0090.170628T2106Z-170628T2130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
406 PM CDT WED JUN 28 2017

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  East central Dakota County in east central Minnesota...
  Northwestern Pierce County in west central Wisconsin...

* Until 430 PM CDT

* At 406 PM CDT, a severe thunderstorm was located near Prescott, or
  13 miles southwest of River Falls, moving east at 35 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. 

* This severe thunderstorm will be near,
  Ellsworth around 430 PM CDT. 

Other locations impacted by this severe thunderstorm include
Beldenville and Diamond Bluff.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4474 9283 4482 9249 4468 9242 4465 9263
      4471 9273 4463 9273 4463 9279
TIME...MOT...LOC 2106Z 252DEG 30KT 4470 9277 

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

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 28, 2:41 PM CDT	Special Weather Statement	MPX	Pierce	34 min
Jun 28, 4:12 PM CDT	Special Weather Statement	MPX	Saint Croix	33 min
Jun 28, 4:23 PM CDT	Severe Thunderstorm Warning	MPX	Pierce, Saint Croix	40 min
Jun 28, 4:30 PM CDT	Tornado Warning	MPX	Pierce, Saint Croix	32 min
Jun 28, 4:59 PM CDT	Severe Thunderstorm Warning	MPX	Dunn, Pepin, Pierce	46 min
Jun 28, 5:12 PM CDT	Special Weather Statement	MPX	Saint Croix	63 min
Jun 27, 11:37 PM CDT	Special Weather Statement	MPX	Redwood	23 min
Jun 28, 2:44 PM CDT	Special Weather Statement	MPX	Hennepin	31 min
Jun 28, 3:24 PM CDT	Special Weather Statement	MPX	Anoka	51 min
Jun 28, 3:37 PM CDT	Special Weather Statement	MPX	Washington	23 min
Jun 28, 4:08 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue	22 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2017 Severe Thunderstorm Warnings in Minnesota, 2017 Every 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.