Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 65, NWS Milwaukee, WI

July 23, 2016Green County, Rock County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Jul 23, 2016, 6:30 PM CDT for Green County, Rock County, Wisconsin. It was in force for 30 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 23, 2016, 6:30 PM CDT (23:30 UTC)
Expired: Jul 23, 2016, 7:00 PM CDT
In force: 30 min
Issued by: NWS Milwaukee, WI
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 70.0 mph

Counties Green County, WI, Rock County, WI

The radar

The Milwaukee radar (KMKX), 87 km from the middle of the area, began a volume at 23:31 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.

Issued	Product	Office	Lasted
Jul 23, 3:23 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 11.5 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-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: 2607 J/kg
Mixed-layer CIN: -89 J/kg
Mixed-layer LCL: 807 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: 40 m²/s²
0-3 km storm-relative helicity: 83 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

359 
WUUS53 KMKX 232330
SVRMKX
WIC045-105-240000-
/O.NEW.KMKX.SV.W.0065.160723T2330Z-160724T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
630 PM CDT SAT JUL 23 2016

THE NATIONAL WEATHER SERVICE IN MILWAUKEE/SULLIVAN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN ROCK COUNTY IN SOUTH CENTRAL WISCONSIN...
  SOUTHERN GREEN COUNTY IN SOUTH CENTRAL WISCONSIN...

* UNTIL 700 PM CDT

* AT 628 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER MONROE...
  MOVING EAST AT 50 MPH. A TORNADO IS POSSIBLE WITH THIS STORM.

  HAZARD...70 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT CONSIDERABLE TREE DAMAGE. DAMAGE IS LIKELY TO 
           MOBILE HOMES...ROOFS...AND OUTBUILDINGS. 

* LOCATIONS IMPACTED INCLUDE...
  JANESVILLE...BELOIT...MONROE...BRODHEAD...ORFORDVILLE...ALBANY...
  FOOTVILLE...NEWARK...MAGNOLIA...JORDAN CENTER...JUDA...AFTON AND
  HANOVER.

PEOPLE ATTENDING THE GREEN COUNTY FAIR SHOULD SEEK SAFE SHELTER
IMMEDIATELY!

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE
OFFICE IN MILWAUKEE/SULLIVAN.

INTENSE THUNDERSTORM LINES CAN PRODUCE BRIEF TORNADOES AND
WIDESPREAD SIGNIFICANT WIND DAMAGE. ALTHOUGH A TORNADO IS NOT
IMMEDIATELY LIKELY...IT IS BEST TO MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR OF A BUILDING. THIS STORM MAY CAUSE SERIOUS INJURY AND
SIGNIFICANT PROPERTY DAMAGE.

&&

LAT...LON 4251 8974 4266 8978 4280 8908 4254 8901
      4250 8950
TIME...MOT...LOC 2328Z 258DEG 43KT 4259 8964 

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...70MPH
 
$$

JTS

2 follow-up statements

529 
WWUS53 KMKX 232346
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
646 PM CDT SAT JUL 23 2016

WIC045-105-240000-
/O.CON.KMKX.SV.W.0065.000000T0000Z-160724T0000Z/
ROCK WI-GREEN WI-
646 PM CDT SAT JUL 23 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT
FOR WESTERN ROCK AND SOUTHEASTERN GREEN COUNTIES...

AT 644 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER BRODHEAD...
MOVING EAST AT 45 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
JANESVILLE...BELOIT...BRODHEAD...ORFORDVILLE...ALBANY...FOOTVILLE...
NEWARK...MAGNOLIA...JUDA...AFTON AND HANOVER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE IN
MILWAUKEE/SULLIVAN.

INTENSE THUNDERSTORM LINES CAN PRODUCE BRIEF TORNADOES AND WIDESPREAD
SIGNIFICANT WIND DAMAGE. ALTHOUGH A TORNADO IS NOT IMMEDIATELY
LIKELY...IT IS BEST TO MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF A BUILDING. THIS STORM MAY CAUSE SERIOUS INJURY AND SIGNIFICANT
PROPERTY DAMAGE.

&&

LAT...LON 4250 8949 4271 8954 4280 8908 4254 8901
TIME...MOT...LOC 2344Z 258DEG 43KT 4263 8938 

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

SPM

688 
WWUS53 KMKX 232358
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
658 PM CDT SAT JUL 23 2016

WIC045-105-240007-
/O.EXP.KMKX.SV.W.0065.000000T0000Z-160724T0000Z/
ROCK WI-GREEN WI-
658 PM CDT SAT JUL 23 2016

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN ROCK AND SOUTHEASTERN
GREEN COUNTIES WILL EXPIRE AT 700 PM CDT...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.  HOWEVER GUSTY WINDS
TO 50 MPH ARE STILL POSSIBLE WITH THIS THUNDERSTORM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FOR
SOUTH CENTRAL WISCONSIN.

LAT...LON 4250 8949 4271 8954 4280 8908 4254 8901
TIME...MOT...LOC 2356Z 258DEG 43KT 4263 8938 

$$

SPM

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 22, 9:01 PM CDT	Marine Dense Fog Advisory	MKX		13 hr
Jul 23, 3:43 AM CDT	Heat Advisory	MKX	Columbia, Dane, Dodge, Fond du Lac, Green, Green Lake and 12 more	39 hr
Jul 23, 10:06 AM CDT	Marine Dense Fog Advisory	MKX		6 hr
Jul 23, 12:07 PM CDT	Special Weather Statement	MKX	Iowa	23 min
Jul 23, 12:56 PM CDT	Special Weather Statement	MKX	Iowa	34 min
Jul 23, 1:23 PM CDT	Severe Thunderstorm Warning	MKX	Dane, Green, Iowa, Lafayette	37 min
Jul 23, 2:00 PM CDT	Severe Thunderstorm Warning	MKX	Dane	30 min
Jul 23, 2:30 PM CDT	Severe Thunderstorm Warning	MKX	Dane	30 min
Jul 23, 2:41 PM CDT	Severe Thunderstorm Warning	MKX	Rock, Walworth	34 min
Jul 23, 2:58 PM CDT	Special Weather Statement	MKX	Jefferson	32 min
Jul 23, 3:27 PM CDT	Special Weather Statement	MKX	Rock	33 min
Jul 23, 3:51 PM CDT	Special Weather Statement	MKX	Milwaukee	24 min
Jul 23, 4:49 PM CDT	Special Weather Statement	MKX	Racine	26 min
Jul 23, 5:06 PM CDT	Special Weather Statement	MKX	Iowa	39 min
Jul 23, 5:19 PM CDT	Severe Thunderstorm Warning	MKX	Lafayette	41 min
Jul 23, 5:33 PM CDT	Areal Flood Advisory	MKX	Iowa	3 hr
Jul 23, 5:42 PM CDT	Special Weather Statement	MKX	Dane, Iowa	33 min
Jul 23, 5:52 PM CDT	Severe Thunderstorm Warning	MKX	Green, Lafayette	38 min
Jul 23, 5:53 PM CDT	Areal Flood Advisory	MKX	Dane	3 hr
Jul 23, 6:14 PM CDT	Special Weather Statement	MKX	Dane	31 min
Jul 23, 6:45 PM CDT	Special Weather Statement	MKX	Rock	30 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2016 Every severe thunderstorm warning in 2016

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.