August 19, 2009 Severe Weather Event

 

Kane County Tornadoes

 Elburn and Lilly Lake Tornado Paths

 PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE CHICAGO IL
1048 PM CDT THU AUG 20 2009 /1148 PM EDT THU AUG 20 2009/

...TWO SEPARATE TORNADOES CONFIRMED NORTH OF ELBURN ILLINOIS ON
WEDNESDAY EVENING AUGUST 19 2009...

THE FIRST TORNADO WAS RATED EF1 ON THE ENHANCED FUJITA SCALE...WITH
A PATH LENGTH OF ONE MILE AND A MAXIMUM WIDTH OF 40 YARDS.

THE SECOND TORNADO WAS RATED EF0 ON THE ENHANCED FUJITA
SCALE...WITH A PATH LENGTH OF THREE QUARTERS OF A MILE AND A
MAXIMUM WIDTH OF 30 YARDS.

THE BEGINNING OF THE FIRST TORNADO OCCURRED AT 600 PM CDT JUST NORTH
OF ROUTE 38 ABOUT ONE MILE NORTH OF ELBURN ILLINOIS. AT THIS
LOCATION A FIELD OF CORN CROPS WERE FLATTENED IN A CONVERGENT MANNER
TOWARDS THE NORTHWEST. DAMAGE WAS RATED EF0 WITH WINDS ESTIMATED
NEAR 65 MPH AND A PATH WIDTH OF 20 YARDS.

THE TORNADO THEN PROCEEDED TO THE NORTHWEST INTENSIFYING AS IT
MOVED JUST ALONG ROUTE 47 WHERE IT SNAPPED OFF AND UPROOTED
MULTIPLE LARGE HARDWOOD AND SOFTWOOD TREES. THE DAMAGE AT THIS
LOCATION WAS BLOWN IN A CONVERGENT PATTERN TO THE NORTHWEST. EF1
DAMAGE WAS OBSERVED WITH WINDS ESTIMATED NEAR 105 MPH AND A PATH
WIDTH OF 40 YARDS.

AGAIN THE TORNADO CONTINUED TO THE NORTHWEST MAINTAINING ITS
STRENGTH CAUSING MORE TREE DAMAGE ALONG ROUTE 47.  SEVERAL TREES
WERE SNAPPED OFF AND CONSISTENTLY BLOWN IN THE SAME DIRECTION TO THE
NORTHWEST. DAMAGE WAS RATED EF1 AT THIS LOCATION WITH WINDS
ESTIMATED NEAR 105 MPH AND A PATH WIDTH OF 40 YARDS.

SEVERAL RESIDENCES ALONG ROUTE 47 CONTINUED TO RECEIVE DAMAGE TO
MANY TREES ON THEIR PROPERTY EVEN AS THE TORNADO WAS WEAKENING. THE
LAST OF THE DAMAGE OBSERVED WAS IN A CORN FIELD JUST TO THE WEST OF
ROUTE 47. HERE CORN CROP WAS FLATTENED AND TWISTED BEFORE THE
TORNADO LIFTED...WITH THE DAMAGE RATED EF0 WITH WINDS ESTIMATED NEAR
65 MPH.

THE BEGINNING OF THE SECOND TORNADO OCCURRED AT 615 PM CDT ABOUT 3
MILES NORTH OF ELBURN NEAR LILY LAKE ILLINOIS. AT THIS LOCATION
SEVERAL LARGE HARDWOOD TREE BRANCHES WERE SNAPPED AND TWISTED OFF IN
A SUBDIVISION ABOUT A HALF MILE SOUTH OF ROUTE 64. DAMAGE WAS RATED
EF0 WITH WINDS ESTIMATED NEAR 75 MPH AND A PATH WIDTH OF 30 YARDS.

THE TORNADO THEN QUICKLY MOVED TO THE NORTHEAST WHERE IT CONTINUED
TO CAUSE DAMAGE TO MULTIPLE LARGE TREES IN THIS SUBDIVISION. DAMAGE
WAS RATED EF0 WITH WINDS ESTIMATED NEAR 75 MPH WITH A PATH WIDTH OF
30 YARDS.

AS THE TORNADO QUICKLY PROGRESSED TO THE NORTHEAST...IT WEAKENED AND
PRODUCED THE LAST OF THE DAMAGE ABOUT A QUARTER OF A MILE NORTH OF
ROUTE 64. AT THIS LOCATION...SEVERAL LARGE TREE BRANCHES WERE
SNAPPED OFF. BEFORE THE TORNADO LIFTED AT THIS LOCATION...EF0 DAMAGE
WAS OBSERVED WITH WINDS ESTIMATED NEAR 70 MPH AND A PATH WIDTH OF 30
YARDS.

$$

RODRIGUEZ/HALBACH 

Pictures from Elburn and Lilly Lake:

Tree damage north of Elburn.

Soft wood trees blown to the west in the foreground and east in the background north of Elburn.

Tree damage north of Elburn.

Large hard wood tree snapped at the trunk north of Elburn.

Corn swirl north of Elburn.

Corn swirl north of Elburn.

Tree and structural damage north of Elburn.

Tree and housing damage north of Elburn.


Iroquois County Tornado



NATIONAL WEATHER SERVICE METEOROLOGISTS COMPLETED A STORM DAMAGE
SURVEY NEAR WATSEKA ILLINOIS IN IROQUOIS COUNTY ON THE AFTERNOON
OF AUGUST 20 2009. THIS SURVEY DETERMINED THAT A TORNADO...RATED
EF 1 ON THE ENHANCED FUJITA SCALE...OCCURRED ON THE EVENING OF
AUGUST 19 2009...AND WAS RESPONSIBLE FOR DAMAGE APPROXIMATELY
THREE MILES TO THE NORTH-NORTHEAST OF WATSEKA. THE TORNADO HAD A
PATH LENGTH OF 2.75 MILES...AND A MAXIMUM WIDTH OF 50 YARDS. THE
PEAK WIND SPEED ASSOCIATED WITH THIS TORNADO IS ESTIMATED TO BE
105 MPH.  NO INJURIES WERE REPORTED WITH THIS TORNADO.

Corn in convergent pattern across from Pratt residence

THE TORNADO FIRST TOUCHED DOWN AT 600 PM CDT ALONG COUNTY ROAD
2100 EAST...JUST TO THE NORTH OF THE INTERSECTION OF COUNTY ROADS
2100 NORTH AND 2100 EAST. THE INITIAL TOUCHDOWN WAS IN A CORN
FIELD...WHERE CORN WAS LAID DOWN IN A CONVERGENT PATTERN. AT THIS
LOCATION...THE TORNADO WAS APPROXIMATELY 20 YARDS WIDE.

 

Silo damage at the Pratt residence


THE TORNADO THEN CROSSED COUNTY ROAD 2100 NORTH...WHERE IT CAUSED
DAMAGE TO TREES AND A SMALL CORN SILO NEXT TO A FARM HOUSE. JUST
BEHIND THIS FARM HOUSE...SEVERAL LARGE TREES WERE BROKEN NEAR THE
BASE...WITH ONE UPROOTED. MOST OF THESE TREES WERE AROUND 3 FEET
IN DIAMETER. SOME INTERNAL ROT WAS NOTED IN A FEW OF THE
TREES...MAKING THEM MORE SUSCEPTIBLE TO WIND DAMAGE.

Detached garage foundation

THE TORNADO THEN APPEARS TO HAVE LIFTED BRIEFLY BEFORE TOUCHING
DOWN AGAIN JUST BEHIND A HOME ALONG COUNTY ROAD 2200
EAST...BETWEEN COUNTY ROADS 2100 NORTH AND 2150 NORTH. AT THIS
LOCATION...SIGNIFICANT TREE DAMAGE WAS OBSERVED...WITH MULTIPLE
LIMBS BETWEEN 1 AND 2 FEET IN DIAMETER BEING BROKEN AND FALLING IN
A CONVERGENT MANNER. ALSO AT THIS LOCATION...A DETACHED GARAGE WAS
DESTROYED...WITH THE DEBRIS BEING SCATTERED 50 TO 100 FEET TO THE
NORTHEAST. THIS APPEARS TO BE THE POINT ALONG THE DAMAGE PATH
WHERE THE STORM REACHED ITS MAXIMUM INTENSITY AND WIDTH...WITH AN
ESTIMATED PEAK WIND SPEED OF 105 MPH AND WIDTH OF 50 YARDS.

garage debris and corn wind damage

THE TORNADO THEN CROSSED COUNTY ROAD 2100 EAST...CAUSING DAMAGE TO
CORN ALONG BOTH COUNTY ROAD 2100 EAST AND COUNTY ROAD 2150 NORTH.
AFTER CROSSING COUNTY ROAD 2150 NORTH...THE TORNADO DESTROYED A
BARN HOUSING FARMING EQUIPMENT...MEASURING 44 X 72 FEET. DEBRIS
FROM THIS BARN WAS SCATTERED IN ALL DIRECTIONS FROM THE BARNS
ORIGINAL LOCATION. SEVERAL PIECES OF FARM EQUIPMENT...ESTIMATED TO
WEIGH BETWEEN 5000 AND 15000 POUNDS...WERE MOVED SEVERAL FEET
NORTH AND NORTHEAST FROM THEIR ORIGINAL LOCATION...INCLUDING A
GRAIN WAGON LIFTED AND PLACED ON TOP OF OTHER FARM EQUIPMENT. AFTER
DESTROYING THE BARN...

 

Barn destroyed with damaged farm equipment at Hustedt farm

 

THE TORNADO MOVED NORTHEAST THROUGH A CORN
FIELD...WHERE ADDITIONAL CROP DAMAGE WAS OBSERVED. THE TORNADO THEN
AGAIN BRIEFLY LIFTED BEFORE STRIKING A HOME AND A DETACHED GARAGE
ALONG COUNTY ROAD 2340 EAST. SIDING AND MINOR ROOF AND SHINGLE
DAMAGE WAS OBSERVED ON THE HOUSE...AND THE DETACHED GARAGE LOST
ITS ROOF AND SUFFERED A COLLAPSE OF THE SOUTH WALL. AT THIS
LOCATION...THE TORNADO WAS ESTIMATED TO BE ABOUT 40 YARDS WIDE.
THE TORNADO APPEARS TO HAVE LIFTED AT APPROXIMATELY 607 PM AS IT
CROSSED COUNTY ROAD 2340 EAST.

Garage damage at tornado end point



BOXELL/GREEN/ROHRBACH/VINCENTE

 


Chesteron, IN Tornado in Porter County

Chesterton Tornado Damage Path

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE CHICAGO IL
958 PM CDT THU AUG 20 2009 /1058 PM EDT THU AUG 20 2009/

...EF2 TORNADO CONFIRMED IN CHESTERTON INDIANA...

A TORNADO OCCURRED ON WEDNESDAY AUGUST 19TH 2009 AND WAS RATED AN
EF2 AT ITS STRONGEST POINT IN CHESTERTON...WITH A PATH LENGTH OF 4
MILES ENDING IN THE INDIANA DUNES NATIONAL LAKESHORE WITH A MAXIMUM
WIDTH OF 60 YARDS.

NATIONAL WEATHER SERVICE METEOROLOGISTS CONDUCTED A STORM SURVEY ON
AUGUST 20TH 2009 IN CHESTERTON INDIANA TO ASSESS WIND DAMAGE WHICH
OCCURRED FROM A THUNDERSTORM THAT RAPIDLY DEVELOPED WEDNESDAY
EVENING.

THE BEGINNING OF THE TORNADO OCCURRED AT 732 PM CDT IN SOUTHERN
CHESTERTON EAST OF 11TH ST AND SOUTHWEST OF SOUTH PARK DR.  THE
TORNADO QUICKLY INTENSIFIED AS IT MOVED TO THE NORTHEAST AND CAUSED
THE PARTIAL COLLAPSE OF A GYMNASIUM ROOF AT THE CHESTERTON JUNIOR
HIGH SCHOOL.  THIS DAMAGE...ALONG WITH NUMEROUS TREES THAT WERE
EITHER UPROOTED OR SHEARED OFF...WAS CAUSED BY TORNADO WINDS
REACHING 110 MPH.  THIS WAS RATED AN EF1 AT THIS POINT WITH A PATH
WIDTH OF 40 YARDS.

THE TORNADO CONTINUED TO TRACK TO THE NORTHEAST ACROSS THE NEW YORK
CENTRAL RAILROAD TRACKS TOWARD GRANT AVENUE WHERE THE ROOF OF A
WAREHOUSE HAD BEEN PEELED OFF AND THROWN ABOUT 15 YARDS BEHIND THE
BUILDING TO THE NORTH.  THE PATH CONTINUED TO THE NORTHEAST WHERE AN
APARTMENT BUILDING ON BROWN AVE LOST ITS ENTIRE ROOF.  THIS DAMAGE
WAS CAUSED BY TORNADO WINDS REACHING 120 MPH.  THIS WAS RATED AN EF2
OVER THIS STRETCH WITH A WIDTH OF ABOUT 60 YARDS.  THIS EF2 DAMAGE
CONTINUED NORTHEAST WHERE AN ENTIRE FIELD OF HEALTHY OLD HARD WOOD
TREE TRUNKS WHERE SNAPPED OR UPROOTED.

THE TORNADO THEN STARTED TO SLIGHTLY WEAKEN AS IT APPROACHED THE
INTERSTATE 94 EASTBOUND EXIT/WESTBOUND ENTRANCE RAMPS AT INDIANA HWY
49.  A HOME SOUTH OF THE INTERSTATE HAD A GARAGE ROOF BLOWN OFF WITH
STILL NUMEROUS TREES UPROOTED OR SHEARED OFF.  TORNADO WIND SPEEDS
HERE WERE ESTIMATED AT 100 MPH WITH AN EF1 RATING.  SIMILAR TREE
DAMAGE WAS NOTED ALONG A PATH THAT CONTINUED TO GO TO THE NORTHEAST
ACROSS HWY 49 AND TOWARD HWY 20 NEAR HADENFELT RD WHERE SOME
ALUMINUM ROOFING MATERIAL OF A STORAGE FACILITY HAD BEEN PEELED
OFF.  TORNADO WIND SPEEDS WERE ESTIMATED AT 95 MPH HERE. THIS WAS
RATED AS EF1 DAMAGE WITH A WIDTH OF 30 YARDS.  THE TORNADO CONTINUED
TO MOVE THROUGH A HEAVILY FORESTED AREA IN THE INDIANA DUNES
NATIONAL LAKESHORE...EVENTUALLY CROSSING ACROSS HWY 12.  RADAR
IMAGERY AND AN AERIAL SURVEY SUGGESTS THAT THE TORNADO DISSIPATED
BETWEEN HWY 12 AND LAKE MICHIGAN AT ABOUT 745 PM CDT.

$$

HALBACH/RODRIGUEZ

 

Pictures from across Chesterton: 

Roof blown off of warehouse building in Chesterton

Roof blown off of a warehouse building in downtown Chesterton.

Apartment building roof blown off in Chesterton

Roof blown off of apartment building on Brown Ave.

Widespread hard wood tree damage in Chesterton

Numerous hard wood trees uprooted or snapped at trunk west of Calumet Rd.

Tree damage near Interstate 94 and Hwy 49

Tree damage leading up to the Hwy 49 exit ramps on Interstate 94.

 

This picture of the tornado was taken by Ian Covert. The photo was taken on Indian Boundary Road, east of Indiana State Road 49, looking west southwest.  The red traffic signal in the photo is the entrance/exit to Jewel on the north and K-Mart on the South.  Beyond the red light there is another traffic signal that is green.  That signal is Indian Boundary Road and 49.   



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