25th Anniversary of Barneveld F5 Tornado is June 8, 2009

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
1135 AM CDT SAT APR 18 2009

...25TH ANNIVERSARY OF THE F5 BARNEVELD TORNADO IS JUNE 8 2009...

A VIOLENT TORNADO QUICKLY DEVELOPED AND CRASHED THROUGH BARNEVELD
SHORTLY AFTER 1240 AM CDT ON JUNE 8 1984.  THE TORNADO CREATED
EXTENSIVE DAMAGE TOTALLING 25 MILLION DOLLARS.  NINE PEOPLE LOST
THEIR LIVES AND 197 OTHERS WERE INJURED.

...HERE IS THE COMPLETE STORY ON WHAT HAPPENED DURING THE VERY EARLY
MORNING HOURS ON JUNE 8TH BACK IN 1984...

AN AREA OF LOW PRESSURE GATHERED STRENGTH ACROSS THE UPPER MIDWEST
DURING THE AFTERNOON OF JUNE 7 1984.  MOISTURE...SHEAR...AND
INSTABILITY HELPED TO SPAWN TORNADOES OF THE F1 TO F3 VARIETY ACROSS
NORTHERN MISSOURI...NORTHEASTERN KANSAS...SOUTHERN AND NORTHWESTERN
IOWA...AND SOUTHEASTERN MINNESOTA.

AS THE ATMOSPHERE BECAME MORE UNSTABLE JUST BEFORE MIDNIGHT...A
CLUSTER OF THUNDERSTORMS DEVELOPED OVER SOUTHWESTERN WISCONSIN. THE
FIRST TORNADO WAS NOTED TO SPIN UP IN THE BELMONT AREA OF LAFAYETTE
COUNTY AT 1230 AM CDT JUNE 8.  THIS TORNADO TRAVELED TO MINERAL
POINT IN IOWA COUNTY WHERE IT DISSIPATED. THIS TORNADO WAS RECORDED
AS AN F2 ON THE FUJITA SCALE.

AT 1241 AM CDT A SECOND TORNADO SPUN UP SOUTH OF RIDGEWAY AND
INTENSIFIED RAPIDLY AS IT CRASHED THROUGH BARNEVELD IN IOWA COUNTY.
THIS VIOLENT TORNADO CONTINUED HEADING NORTHEAST TO THE BLACK EARTH
AREA OF DANE COUNTY BY 107 AM CDT. THE TORNADO FINALLY DISSIPATED AT
140 AM CDT JUST SOUTHEAST OF LODI...NEAR THE COLUMBIA/DANE COUNTY
BORDER.

AFTER A 36 MILE LONG PATH FOR 59 MINUTES...93 HOMES WERE COMPLETELY
DESTROYED...64 OTHERS WERE DAMAGED. SEVENTEEN OF THE EIGHTEEN
BUSINESSES AND PUBLIC FACILITIES IN THE TOWN OF BARNEVELD WERE ALSO
DESTROYED. NEARLY 90 PERCENT OF BARNEVELD WAS COMPLETELY DEVASTATED.
AT ONE POINT IN TIME...THE WIDTH OF THE TORNADO DAMAGE WAS NEARLY
400 YARDS WIDE.

DESPITE THE TORNADO PROPAGATING THROUGH BARNEVELD IN THE MIDDLE OF
THE NIGHT...IN COMBINATION WITH THE MYTH CIRCULATING AROUND THE TOWN
THAT NO TORNADOES COULD EVER SURVIVE THE HIKE UP BLUE MOUND...9
PEOPLE DIED AND 197 OTHERS WERE INJURIED. IT WAS LATER DETERMINED BY
TED FUJITA THAT THE BARNEVELD TORNADO WAS INDEED AN F5...THE HIGHEST
LEVEL ON THE FUJITA TORNADO SCALE.

THE CLUSTER OF THUNDERSTORMS THAT SPAWNED THE BARNEVELD TORNADO HAD
ALSO SPAWNED OTHER TORNADOES ACROSS SOUTHERN WISCONSIN LATER THAT
NIGHT.  OTHER TORNADOES INCLUDED...

     ...THE F2 ARLINGTON /COLUMBIA CO./ TORNADO...
     ...THE F2 DEFOREST /DANE CO./ TORNADO...
     ...THE F3 MARKESAN /GREEN LAKE CO./ TORNADO...
     ...THE F1 COLUMBUS /DODGE CO./ TORNADO...
     ...THE F2 BEAVER DAM /DODGE CO./ TORNADO...

ALL IN ALL...9 PEOPLE WERE KILLED AND 200 PEOPLE WERE INJURED DURING
THE ENTIRE TORNADO OUTBREAK.  TOTAL DAMAGE /IN 1984 DOLLARS/ ACROSS
IOWA AND DANE COUNTY WAS CALCULATED AT 40 MILLION...25 OF THAT 40
MILLION OCCURRED IN THE CITY OF BARNEVELD ALONE.


...COMPARING THE FUJITA SCALE TO THE NEW ENHANCED FUJITA SCALE...

     ...WIND SPEEDS ARE ESTIMATED FROM DAMAGE SURVEYS...
     ...BASED ON 3-SECOND GUST SPEEDS...

     FUJITA F-SCALE         ENHANCED FUJITA SCALE /STARTED FEB 2007/
     F0...45-78 MPH            /EFO...65-85 MPH/
     F1...79-117 MPH         /EF1...86-110 MPH/
     F2...118-161 MPH       /EF2...111-135 MPH/
     F3...162-209 MPH       /EF3...136-165 MPH/
     F4...210-261 MPH       /EF4...166-200 MPH/
     F5...262-317 MPH       /EF5...MORE THAN 200 MPH/

...BASIC CLIMATIC DATA FOR LAFAYETTE COUNTY AND DANE COUNTY ON
JUNE 7 AND JUNE 8...

     ...MADISON...
     JUNE 7...LOW 67...HIGH 78...RAINFALL 0.03
     JUNE 8...LOW 61...HIGH 82...RAINFALL 1.10

     ...DARLINGTON...
     JUNE 7...LOW 68...HIGH 78...RAINFALL 0.57
     JUNE 8...LOW 63...HIGH 83...RAINFALL 0.44

$$
BORGHOFF/KAPELA



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