Alert archive / Wisconsin / Tornado Warnings in 2010

Tornado Warning 4, NWS Milwaukee, WI

April 30, 2010Green Lake County, Marquette County, Wisconsin

NWS Milwaukee, WI issued this tornado warning at Apr 30, 2010, 7:09 PM CDT for Green Lake County, Marquette County, Wisconsin. It was in force for 36 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
Apr 30, 2010, 7:09 PM CDT (00:09 UTC)
Expired
Apr 30, 2010, 7:45 PM CDT
In force
36 min
Issued by
NWS Milwaukee, WI
Area
Storm-based polygon

Counties Green Lake County, WI, Marquette County, WI

The radar

The Green Bay radar (KGRB), 104 km from the middle of the area, began a volume at 00:11 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
Apr 30, 7:15 PM CDTTORNADO 02 Ese Glen Oak, WISPOTTY TREE DAMAGE ALONG A 8 MILE PATH. SEVERAL TREES OR LARGE LIMBS SNAPPED. PUBLIC SPOTTED TORNADO FROM PRINCETON AREA NEAR THE FOX RIVER JUST BEFORE IT DISSIPATED. DAMAGE ENDS JUST SHORT OF MARQUETTE/GREEN COUNTY LINE 4 MILES SOUTHWEST OF PRINCETON. PATH WI
Apr 30, 7:15 PM CDTTORNADO 05 Ese Glen Oak, WISTART OF SPOTTY TREE DAMAGE ALONG 7.5 MILE PATH. PATH ENDS 1 NW MARQUETTE IN GREEN LAKE COUNTY. NUMEROUS TREES EITHER SNAPPED OR PARTIALLY UPROOTED ALONG THE PATH. WIDTH 50 YARDS. ESTIMATED WINDS OF 70 MPH. EF0. THIS WAS THE SOUTHERN OF TWO CIRCULATIONS WITH T
Apr 30, 7:28 PM CDTTORNADO2 S Princeton, WIBRIEF TORNADO TOUCHDOWN JUST SOUTH OF PRINCETON NEAR LAKE PUCKAWAY.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 30, 1:05 PM CDTTornado WatchSPC9 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 0.2 hours before the alert went out and 103 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 00:00Z on 2010-05-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 43 joules per kilogram.LCLLFCEL10008507005003002001001 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 00:00Z on 2010-05-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 155 square meters per square second.19395878Sfc1 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
43 J/kg
Mixed-layer CIN
-91 J/kg
Mixed-layer LCL
1273 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
155 m²/s²
0-3 km storm-relative helicity
261 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

The text

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

744 
WFUS53 KMKX 010009
TORMKX
WIC047-077-010045-
/O.NEW.KMKX.TO.W.0004.100501T0009Z-100501T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
709 PM CDT FRI APR 30 2010

THE NATIONAL WEATHER SERVICE IN SULLIVAN HAS ISSUED A

* TORNADO WARNING FOR...
  GREEN LAKE COUNTY IN SOUTH CENTRAL WISCONSIN...
  SOUTHEASTERN MARQUETTE COUNTY IN SOUTH CENTRAL WISCONSIN...

* UNTIL 745 PM CDT

* AT 705 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 9 MILES NORTH OF PARDEEVILLE...OR 11 MILES
  NORTHEAST OF PORTAGE...AND MOVING NORTHEAST AT 55 MPH.

  IN ADDITION...HAIL UP TO QUARTER IN SIZE IS POSSIBLE WITH THIS 
  STORM.

* LOCATIONS IMPACTED INCLUDE...
  BERLIN...PRINCETON...GREEN LAKE AND MARQUETTE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. THE SAFEST PLACE TO BE DURING A TORNADO IS IN A
BASEMENT. GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE.
AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO
THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING
DEBRIS.

&&

LAT...LON 4398 8888 4383 8888 4364 8923 4364 8925
      4372 8935 4399 8896 4399 8888
TIME...MOT...LOC 0008Z 226DEG 46KT 4369 8926

$$

DDV
2 follow-up statements
995 
WWUS53 KMKX 010023
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
723 PM CDT FRI APR 30 2010

WIC077-010032-
/O.CAN.KMKX.TO.W.0004.000000T0000Z-100501T0045Z/
MARQUETTE WI-
723 PM CDT FRI APR 30 2010

...THE TORNADO WARNING FOR SOUTHEASTERN MARQUETTE COUNTY IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.

LAT...LON 4399 8888 4383 8888 4364 8923 4377 8923
      4376 8919 4377 8916 4381 8916 4381 8919
      4383 8919 4399 8896
TIME...MOT...LOC 0022Z 226DEG 46KT 4381 8908

$$

WIC047-010045-
/O.CON.KMKX.TO.W.0004.000000T0000Z-100501T0045Z/
GREEN LAKE WI-
723 PM CDT FRI APR 30 2010

...A TORNADO WARNING REMAINS IN EFFECT FOR GREEN LAKE COUNTY UNTIL
745 PM CDT...

AT 719 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR PRINCETON...OR 14 MILES WEST OF RIPON...MOVING
NORTHEAST AT 55 MPH.

LOCATIONS IMPACTED INCLUDE...
  BERLIN AND GREEN LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4399 8888 4383 8888 4364 8923 4377 8923
      4376 8919 4377 8916 4381 8916 4381 8919
      4383 8919 4399 8896
TIME...MOT...LOC 0022Z 226DEG 46KT 4381 8908

$$

ZABEL
746 
WWUS53 KMKX 010046
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
746 PM CDT FRI APR 30 2010

WIC047-010055-
/O.EXP.KMKX.TO.W.0004.000000T0000Z-100501T0045Z/
GREEN LAKE WI-
746 PM CDT FRI APR 30 2010

...THE TORNADO WARNING FOR GREEN LAKE COUNTY HAS EXPIRED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A TORNADO 
WATCH REMAINS IN EFFECT.

LAT...LON 4399 8888 4383 8888 4364 8923 4377 8923
      4376 8919 4377 8916 4381 8916 4381 8919
      4383 8919 4399 8896
TIME...MOT...LOC 0023Z 226DEG 46KT 4382 8906

$$

ZABEL

Nearby

Tornado Warnings in Wisconsin, 2010Every tornado warning in 2010Tornadoes in 2010

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.