Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 101, NWS Milwaukee, WI

July 2, 2017Dane County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Jul 2, 2017, 6:09 PM CDT for Dane County, Wisconsin. It was in force for 36 min. 1 report 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
Jul 2, 2017, 6:09 PM CDT (23:09 UTC)
Expired
Jul 2, 2017, 6:45 PM CDT
In force
36 min
Issued by
NWS Milwaukee, WI
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Dane County, WI

The radar

The Milwaukee radar (KMKX), 92 km from the middle of the area, began a volume at 23:09 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

TimeReportWhereRemark
Jul 2, 6:30 PM CDTHAIL 15 Wnw Verona, WI

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

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 11.2 hours before the alert went out and 165 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, Davenport, at 12:00Z on 2017-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Davenport, at 12:00Z on 2017-07-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 118 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2143 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
118 m²/s²
0-3 km storm-relative helicity
82 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

995 
WUUS53 KMKX 022309
SVRMKX
WIC025-022345-
/O.NEW.KMKX.SV.W.0101.170702T2309Z-170702T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Milwaukee/Sullivan WI
609 PM CDT SUN JUL 2 2017

The National Weather Service in Milwaukee/Sullivan has issued a

* Severe Thunderstorm Warning for...
  Southwestern Dane County in south central Wisconsin...

* Until 645 PM CDT

* At 609 PM CDT, a severe thunderstorm was located near Black Earth,
  or near Mount Horeb, moving southeast at 25 mph.

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

  SOURCE...Radar indicated. 

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

* Locations impacted include...
  Western Madison, Fitchburg, Verona, Mount Horeb, Cross Plains,
  Belleville, Black Earth, Blue Mounds, Pine Bluff, Mount Vernon and
  Paoli.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4286 8984 4312 8984 4317 8969 4297 8935
      4285 8952
TIME...MOT...LOC 2309Z 317DEG 22KT 4308 8974 

HAIL...1.00IN
WIND...60MPH
 
$$

BSH
3 follow-up statements
964 
WWUS53 KMKX 022319
SVSMKX

Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
619 PM CDT SUN JUL 2 2017

WIC025-022345-
/O.CON.KMKX.SV.W.0101.000000T0000Z-170702T2345Z/
Dane WI-
619 PM CDT SUN JUL 2 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT
FOR SOUTHWESTERN DANE COUNTY...

At 619 PM CDT, a severe thunderstorm was located near Mount Horeb,
moving southeast at 25 mph.

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

SOURCE...Radar indicated. 

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

Locations impacted include...
Western Madison, Fitchburg, Verona, Mount Horeb, Cross Plains,
Belleville, Pine Bluff, Mount Vernon and Paoli.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4286 8984 4293 8984 4296 8977 4307 8977
      4312 8962 4297 8935 4285 8952
TIME...MOT...LOC 2319Z 317DEG 22KT 4303 8968 

HAIL...1.00IN
WIND...60MPH
 
$$

BSH
662 
WWUS53 KMKX 022330
SVSMKX

Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
630 PM CDT SUN JUL 2 2017

WIC025-022345-
/O.CON.KMKX.SV.W.0101.000000T0000Z-170702T2345Z/
Dane WI-
630 PM CDT SUN JUL 2 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT
FOR SOUTHWESTERN DANE COUNTY...

At 630 PM CDT, a severe thunderstorm was located near Verona, moving
southeast at 25 mph.

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

SOURCE...Radar indicated. 

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

Locations impacted include...
Western Madison, Fitchburg, Verona, Mount Horeb, Belleville, Pine
Bluff and Paoli.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4302 8975 4309 8959 4297 8935 4285 8952
TIME...MOT...LOC 2330Z 317DEG 22KT 4299 8962 

HAIL...1.00IN
WIND...60MPH
 
$$

BSH
560 
WWUS53 KMKX 022341
SVSMKX

Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
641 PM CDT SUN JUL 2 2017

WIC025-022351-
/O.EXP.KMKX.SV.W.0101.000000T0000Z-170702T2345Z/
Dane WI-
641 PM CDT SUN JUL 2 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN DANE COUNTY WILL
EXPIRE AT 645 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.

LAT...LON 4302 8975 4309 8959 4297 8935 4285 8952
TIME...MOT...LOC 2341Z 317DEG 22KT 4295 8957 

$$

BSH

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 2, 1:51 PM CDTSpecial Weather StatementMKXKenosha24 min
Jul 2, 2:08 PM CDTSpecial Weather StatementMKXKenosha37 min
Jul 2, 2:53 PM CDTSpecial Weather StatementMKXDane37 min
Jul 2, 2:56 PM CDTSpecial Marine WarningMKX34 min
Jul 2, 3:29 PM CDTSpecial Weather StatementMKXWalworth31 min
Jul 2, 3:31 PM CDTSpecial Weather StatementMKXDane29 min
Jul 2, 3:57 PM CDTSpecial Weather StatementMKXDane33 min
Jul 2, 4:03 PM CDTSevere Thunderstorm WarningMKXDane27 min
Jul 2, 4:12 PM CDTSpecial Weather StatementMKXKenosha48 min
Jul 2, 4:27 PM CDTSpecial Weather StatementMKXDane33 min
Jul 2, 5:54 PM CDTSpecial Weather StatementMKXDane36 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.