Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 2, NWS Milwaukee, WI

March 16, 2012Sauk County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Mar 16, 2012, 2:50 PM CDT for Sauk County, Wisconsin. It was in force for 32 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
Mar 16, 2012, 2:50 PM CDT (19:50 UTC)
Expired
Mar 16, 2012, 3:22 PM CDT
In force
32 min
Issued by
NWS Milwaukee, WI
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

County Sauk County, WI

The radar

The La Crosse radar (KARX), 94 km from the middle of the area, began a volume at 19:50 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

Green Bay/Straub, WI (KGRB), launched 12:00Z, 7.8 hours before the alert went out and 196 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, Green Bay/Straub, WI at 12:00Z on 2012-03-16Temperature 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, Green Bay/Straub, WI at 12:00Z on 2012-03-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 1 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
836 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
34 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

034 
WUUS53 KMKX 161950
SVRMKX
WIC111-162030-
/O.NEW.KMKX.SV.W.0002.120316T1950Z-120316T2030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
250 PM CDT FRI MAR 16 2012

THE NATIONAL WEATHER SERVICE IN SULLIVAN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN SAUK COUNTY IN SOUTH CENTRAL WISCONSIN...

* UNTIL 330 PM CDT

* AT 246 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
  STORM WAS LOCATED 7 MILES NORTHEAST OF LONE ROCK AIRPORT...OR 14
  MILES EAST OF RICHLAND CENTER...AND MOVING NORTH AT 15 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  REEDSBURG AROUND 330 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE HILL
POINT...LOGANVILLE AND LIME RIDGE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 4364 9022 4364 8985 4321 8991 4317 9020
      4355 9020 4355 9021
TIME...MOT...LOC 1950Z 193DEG 14KT 4331 9011
WIND...HAIL <50MPH 1.00IN

$$
2 follow-up statements
988 
WWUS53 KMKX 161957
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
257 PM CDT FRI MAR 16 2012

WIC111-162030-
/O.CON.KMKX.SV.W.0002.000000T0000Z-120316T2030Z/
SAUK WI-
257 PM CDT FRI MAR 16 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN SAUK
COUNTY UNTIL 330 PM CDT...

AT 256 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
STORM WAS LOCATED 9 MILES NORTHEAST OF LONE ROCK AIRPORT...OR 15
MILES SOUTH OF REEDSBURG...MOVING NORTH AT 15 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  REEDSBURG AROUND 330 PM CDT.

OTHER LOCATIONS IMPACTED BY THE SEVERE THUNDERSTORM INCLUDE LELAND...
HILL POINT...LOGANVILLE...PLAIN AND ROCK SPRINGS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 4364 9022 4364 8985 4322 8992 4322 9019
      4355 9020 4355 9021
TIME...MOT...LOC 1957Z 202DEG 14KT 4333 9008
WIND...HAIL <50MPH 1.00IN

$$
790 
WWUS53 KMKX 162022
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
322 PM CDT FRI MAR 16 2012

WIC111-162030-
/O.CAN.KMKX.SV.W.0002.000000T0000Z-120316T2030Z/
SAUK WI-
322 PM CDT FRI MAR 16 2012

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN SAUK COUNTY IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BUT REMAINS OVER 
CENTRAL SAUK COUNTY NEAR LELAND. THIS THUNDERSTORM MAY CAUSE SMALL 
HAIL AND A FEW LIGHTNING STRIKES ALONG WITH BRIEF HEAVY RAIN AS IT 
MOVES NORTHEAST AND AFFECTS AREAS FROM LELAND TO BARABOO.

ANOTHER THUNDERSTORM WAS OVER NORTHEAST RICHLAND COUNTY NEAR HUB 
CITY.  THIS STORM WAS MOVING NORTHEAST AND WILL AFFECT THE DUTCH 
HOLLOW LAKE AND VALTON AREAS THROUGH 345 PM CDT. 

LAT...LON 4364 9022 4364 8985 4322 8992 4322 9019
      4355 9020 4355 9021
TIME...MOT...LOC 2020Z 215DEG 17KT 4341 8997

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 15, 11:50 PM CDTMarine Dense Smoke AdvisoryMKX17 min
Mar 16, 12:07 AM CDTMarine Dense Fog AdvisoryMKX27 hr

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2012Every severe thunderstorm warning in 2012

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.