Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 21, NWS Milwaukee, WI

June 18, 2018Kenosha County, Racine County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Jun 18, 2018, 3:37 PM CDT for Kenosha County, Racine County, Wisconsin. It was in force for 38 min. 3 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: Jun 18, 2018, 3:37 PM CDT (20:37 UTC)
Expired: Jun 18, 2018, 4:15 PM CDT
In force: 38 min
Issued by: NWS Milwaukee, WI
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

Counties Kenosha County, WI, Racine County, WI

The radar

The Milwaukee radar (KMKX), 65 km from the middle of the area, began a volume at 20:40 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
Jun 18, 3:57 PM CDT	TSTM WND DMG	1 Wnw Racine, WI	MATURE OAK TREE SPLIT AT THE BASE JUST SOUTH OF THE RACINE AIRPORT.
Jun 18, 4:22 PM CDT	TSTM WND DMG	1 Ssw Bohners Lake, WI	TREE DOWN BLOCKING ROAD NEAR INTERSECTION OF 292ND AVENUE AND 37TH STREET.
Jun 18, 4:25 PM CDT	TSTM WND DMG	4 Nnw Silver Lake, WI	TREE BLOWN DOWN ONTO RAILROAD TRACKS NEAR INTERSECTION OF HIGHWAY W (328TH AVE) AND 45TH ST IN WHEATLAND. TIME EST BY RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 8.6 hours before the alert went out and 207 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: 84 J/kg
Mixed-layer CIN: -57 J/kg
Mixed-layer LCL: 575 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 23 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.1

Open this sounding in Storm Lab

The text

As transmitted.

408 
WUUS53 KMKX 182037
SVRMKX
WIC059-101-182115-
/O.NEW.KMKX.SV.W.0021.180618T2037Z-180618T2115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Milwaukee/Sullivan WI
337 PM CDT MON JUN 18 2018

The National Weather Service in Milwaukee/Sullivan has issued a

* Severe Thunderstorm Warning for...
  Central Racine County in southeastern Wisconsin...
  Kenosha County in southeastern Wisconsin...

* Until 415 PM CDT.

* At 337 PM CDT, a severe thunderstorm was located over Eagle Lake,
  or near Union Grove, moving southeast at 40 mph.

  HAZARD...60 mph wind gusts and nickel size hail.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Kenosha, Racine, Mount Pleasant, Pleasant Prairie, Sturtevant,
  Union Grove, Paddock Lake, Camp Lake, Silver Lake, Wind Point,
  Bohners Lake, Eagle Lake, Caledonia, Salem, Bristol, Elmwood Park,
  North Bay, Franksville, Kansasville and New Munster.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4249 8781 4249 8805 4259 8831 4261 8830
      4284 8797 4284 8791 4276 8775 4271 8775
      4266 8778 4265 8780 4263 8780 4250 8779
      4248 8780
TIME...MOT...LOC 2037Z 300DEG 35KT 4275 8811 

HAIL...0.88IN
WIND...60MPH
 
$$

SPM

2 follow-up statements

935 
WWUS53 KMKX 182057
SVSMKX

Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
357 PM CDT MON JUN 18 2018

WIC059-101-182115-
/O.CON.KMKX.SV.W.0021.000000T0000Z-180618T2115Z/
Racine WI-Kenosha WI-
357 PM CDT MON JUN 18 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM CDT
FOR EASTERN RACINE AND KENOSHA COUNTIES...

At 357 PM CDT, a severe thunderstorm was located near Mount Pleasant,
moving southeast at 40 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Kenosha, Racine, Mount Pleasant, Pleasant Prairie, Sturtevant, Union
Grove, Paddock Lake, Camp Lake, Silver Lake, Wind Point, Bohners
Lake, Caledonia, Salem, Bristol, Elmwood Park, North Bay,
Franksville, Kansasville and New Munster.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4249 8781 4249 8806 4259 8831 4261 8830
      4269 8810 4278 8795 4281 8786 4276 8775
      4270 8776 4266 8778 4265 8780 4258 8780
      4250 8779 4248 8780
TIME...MOT...LOC 2057Z 300DEG 35KT 4265 8788 

HAIL...0.75IN
WIND...60MPH
 
$$

SPM

900 
WWUS53 KMKX 182105
SVSMKX

Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
405 PM CDT MON JUN 18 2018

WIC059-101-182115-
/O.CON.KMKX.SV.W.0021.000000T0000Z-180618T2115Z/
Racine WI-Kenosha WI-
405 PM CDT MON JUN 18 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM CDT
FOR EAST CENTRAL RACINE AND NORTHEASTERN KENOSHA COUNTIES...

At 404 PM CDT, a severe thunderstorm was located over Kenosha, moving
southeast at 30 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Kenosha, Racine, Mount Pleasant, Sturtevant, Elmwood Park and North
Bay.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4270 8776 4266 8778 4266 8779 4262 8782
      4260 8785 4263 8793 4266 8798 4269 8801
      4274 8793 4278 8780 4276 8775
TIME...MOT...LOC 2104Z 300DEG 35KT 4261 8779 

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

SPM

The office that day

Everything else NWS Milwaukee, WI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 17, 10:14 PM CDT	Special Weather Statement	MKX	Sauk	46 min
Jun 18, 12:36 AM CDT	Special Weather Statement	MKX	Fond du Lac	54 min
Jun 18, 2:33 AM CDT	Areal Flood Advisory	MKX	Fond du Lac	117 min
Jun 18, 2:25 PM CDT	Special Weather Statement	MKX	Waukesha	35 min
Jun 18, 2:35 PM CDT	Special Weather Statement	MKX	Dodge	25 min
Jun 18, 3:04 PM CDT	Special Weather Statement	MKX	Milwaukee, Waukesha	26 min
Jun 18, 3:07 PM CDT	Special Weather Statement	MKX	Dodge	23 min
Jun 18, 3:11 PM CDT	Areal Flood Advisory	MKX	Milwaukee, Waukesha	3 hr
Jun 18, 3:17 PM CDT	Special Weather Statement	MKX	Walworth	43 min
Jun 18, 3:21 PM CDT	Severe Thunderstorm Warning	MKX	Milwaukee, Racine, Walworth, Waukesha	24 min
Jun 18, 3:37 PM CDT	Special Marine Warning	MKX		53 min
Jun 18, 4:01 PM CDT	Special Weather Statement	MKX	Walworth	44 min
Jun 18, 4:17 PM CDT	Severe Thunderstorm Warning	MKX	Kenosha, Racine, Walworth	28 min
Jun 18, 4:22 PM CDT	Special Weather Statement	MKX	Iowa	23 min
Jun 18, 4:28 PM CDT	Areal Flood Advisory	MKX	Kenosha, Racine	3 hr
Jun 18, 4:29 PM CDT	Special Marine Warning	MKX		46 min
Jun 18, 4:29 PM CDT	Severe Thunderstorm Warning	MKX	Kenosha	27 min
Jun 18, 5:31 PM CDT	Special Weather Statement	MKX	Rock	29 min
Jun 18, 5:43 PM CDT	Areal Flood Advisory	MKX	Rock, Walworth	3 hr

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.