Public Information Statement
Issued by NWS Chicago, IL

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PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE CHICAGO IL
250 AM CDT SAT JUL 12 2014 /350 AM EDT SAT JUL 12 2014/

...SUMMARY OF JUNE 30 2014 TORNADOES..

THE FOLLOWING IS A SUMMARY LIST OF THE TORNADOES THAT OCCURRED
IN THE SEVERE WEATHER EVENT OF JUNE 30TH. IN TOTAL IN THE NWS
CHICAGO COUNTY WARNING AREA...THERE WERE 11 TORNADOES
CONFIRMED...TEN OF WHICH WERE EF-1 AND ONE THAT WAS EF-0 IN
INTENSITY. TWO ADDITIONAL HAVE BEEN DETERMINED IN THE PAST WEEK
FROM ANALYZING THE DAMAGE SURVEY RESULTS FROM GROUND AND AIR IN
DETAIL...CORRELATING WITH RADAR SIGNATURES AND
REPORTS...REFERENCING PUBLISHED RESEARCH...AND COLLABORATING
WITH DAMAGE SURVEY EXPERTS.

IT IS IMPORTANT TO NOTE THAT THE MOST WIDESPREAD IMPACT FROM THE
JUNE 30TH DERECHOS WAS SEVERE STRAIGHT-LINE WINDS...AT TIMES TO
100 MPH OR HIGHER. THIS WAS THE CASE NOT ONLY IN THE NWS CHICAGO
COUNTY WARNING AREA BUT MUCH OF THE REGION IMPACTED BY THESE
DERECHOS. ALL OF THE TORNADOES IN THE NWS CHICAGO COUNTY WARNING
AREA WERE EMBEDDED WITHIN THESE SIGNIFICANT WINDS.

---------------------------------------------------------------

.TORNADO #1

...EARLVILLE AREA TORNADO IN LASALLE COUNTY...

RATING:                 EF-1
ESTIMATED PEAK WIND:    110 MPH
PATH LENGTH /STATUTE/:  1.5 MILES
PATH WIDTH /MAXIMUM/:   50 YARDS
FATALITIES:             NONE
INJURIES:               NONE

START DATE:             JUNE 30 2014
START TIME:             916 PM CDT
START LOCATION:         1.5 W EARLVILLE
START LAT/LON  :        41.5886/-88.9526

END DATE:               JUNE 30 2014
END TIME:               917 PM CDT
END LOCATION:           0.5 SW EARLVILLE
END_LAT/LON:            41.5849/-88.9239

AFTER VIEWING AERIAL PHOTOS FROM LOCAL MEDIA OF CONVERGENT SWIRLING
AND SCARRING ON THE SOUTHWEST EDGE OF TOWN...A SHORT LIVED TORNADO
HAS BEEN CONFIRMED TO HAVE TOUCHED DOWN EMBEDDED WITHIN AN AREA OF
WIDESPREAD STRAIGHT LINE WIND DAMAGE NEAR EARLVILLE. NUMEROUS TREES
WERE DOWNED THROUGHOUT THE AREA WITH DAMAGE TO ROOFS AND A GARAGE
BLOWN OUT ON THE SOUTH AND SOUTHWEST PARTS OF TOWN. DEBRIS WERE
GENERALLY LAID DOWN IN AN EAST OR EAST-NORTHEAST DIRECTION.

---------------------------------------------------------------

.TORNADO #2

...TORNADO IN FAR SOUTHWEST KENDALL COUNTY...

RATING:                 EF-1
ESTIMATED PEAK WIND:    100 MPH
PATH LENGTH /STATUTE/:  1.5 MILES
PATH WIDTH  /MAXIMUM/:  50 YARDS
FATALITIES:             NONE
INJURIES:               NONE

START DATE:             JUNE 30 2014
START TIME:             938 PM CDT
START LOCATION:         4.8 W LISBON
START LAT/LON  :        41.5886/-88.9526

END DATE:               JUNE 30 2014
END TIME:               939 PM CDT
END LOCATION:           4.5 WSW LISBON
END LAT/LON:            41.5849/-88.9239

CONCENTRATED DAMAGE WAS FOUND AT TWO FARMSTEADS INCLUDING
DESTRUCTION OF AN OUTBUILDING AND LARGE TREES SNAPPED AT THEIR
BASES. DEBRIS FROM THE OUTBUILDING WAS CARRIED SEVERAL HUNDRED
YARDS. THIS TORNADO BEGAN NEAR U.S. HIGHWAY 52 VERY CLOSE TO
THE LASALLE AND KENDALL COUNTY BORDERS.

-------------------------------------------------------------

.TORNADO #3

...NORTH OF MORRIS IN GRUNDY COUNTY...

RATING:                 EF-0
ESTIMATED PEAK WIND:    85 MPH
PATH LENGTH /STATUTE/:  2 MILES
PATH WIDTH /MAXIMUM/:   50 YARDS
FATALITIES:             NONE
INJURIES:               NONE

START DATE:             JUNE 30 2014
START TIME:             944 PM CDT
START LOCATION:         5 NNW MORRIS
START LAT/LON:          41.4411/-88.4692

END DATE:               JUNE 30 2014
END TIME:               946 PM CDT
END LOCATION:           4 N MORRIS
END LAT/LON:            41.4340/-88.4285

AN NWS STORM DAMAGE SURVEY TEAM DETERMINED VIA AN AERIAL
SURVEY THAT AN EF-0 TORNADO OCCURRED FOR A PATH LENGTH OF
TWO MILES. DAMAGE WAS DONE TO MAINLY CROPS.

-------------------------------------------------------------

.TORNADO #4

...PLAINFIELD AND ROMEOVILLE AREAS IN WILL COUNTY...

RATING:                 EF-1
ESTIMATED PEAK WIND:    95 MPH
PATH LENGTH /STATUTE/:  3 MILES
PATH WIDTH /MAXIMUM/:   75 YARDS
FATALITIES:             NONE
INJURIES:               NONE

START DATE:             JUNE 30 2014
START TIME:             955 PM CDT
START LOCATION:         1.1 NE PLAINFIELD
START LAT/LON:          41.6272/-88.1846

END DATE:               JUNE 30 2014
END TIME:               958 PM CDT
END LOCATION:           2.4 SW ROMEOVILLE
END LAT/LON:            41.6244/-88.1255

A TORNADO WAS CONFIRMED BASED ON DAMAGE TO MAINLY TREES BUT
ALSO TO SOME RESIDENCES. OVER 50 TREES...INCLUDING MANY LARGE
SOFTWOOD TREES...WERE UPROOTED WITHIN A CONCENTRATED PATH. A
DOZEN MODEST TO LARGE TREES WERE BLOWN TO THE NORTHWEST
AGAINST THE EASTWARD PATH OF THE STORM. NUMEROUS ROADS HAD BEEN
BLOCKED BECAUSE OF FALLEN TREES. IN ADDITION...THERE
WAS MINOR DAMAGE TO NUMEROUS RESIDENCES IN THE WOODLANDS OF THE
RESERVE AND LAKEWOOD FALLS SUBDIVISIONS. THIS DAMAGE WAS MAINLY
SIDING AND SHINGLES PEELED OFF AND WINDOWS BLOWN OUT.

THIS TORNADO CROSSED INTERSTATE 55 NEAR MILE MARKER 261.

THIS TORNADO WAS EMBEDDED WITHIN STRAIGHT-LINE WIND DAMAGE THAT
CONTINUED INTO LOCKPORT AND FURTHER EAST-SOUTHEAST BASED ON
REPORTS.

---------------------------------------------------------------

.TORNADO #5

...FIRST OF TWO TORNADOES NORTHWEST OF GRANT PARK IN KANKAKEE
COUNTY...

RATING:                 EF-1
ESTIMATED PEAK WIND:    100-110 MPH
PATH LENGTH /STATUTE/:  4 MILES
PATH WIDTH /MAXIMUM/:   200 YARDS
FATALITIES:             NONE
INJURIES:               NONE

START DATE:             JUNE 30 2014
START TIME:             1025 PM CDT
START LOCATION:         3 E MANTENO
START LAT/LON:          41.2556/-87.7816

END DATE:               JUNE 30 2014
END TIME:               1028 PM CDT
END LOCATION:           4 NW GRANT PARK
END LAT/LON:            41.2817/-87.7114


.TORNADO #6

...SECOND OF TWO TORNADOES NORTHWEST OF GRANT PARK IN KANKAKEE
COUNTY...

RATING:                 EF-1
ESTIMATED PEAK WIND:    100 MPH
PATH LENGTH /STATUTE/:  4 MILES
PATH WIDTH /MAXIMUM/:   300 YARDS
FATALITIES:             NONE
INJURIES:               NONE

START DATE:             JUNE 30 2014
START TIME:             1026 PM CDT
START LOCATION:         5 E MANTENO
START LAT/LON:          41.2491/-87.7427

END DATE:               JUNE 30 2014
END TIME:               1030 PM CDT
END LOCATION:           3 NNW GRANT PARK
END LAT/LON:            41.2742/-87.6647


SURVEY SUMMARY:

TWO SEPARATE TORNADOES WERE CONFIRMED WITHIN AN APPROXIMATE TWO
MILE WIDE NORTH-SOUTH PATH FROM ABOUT 3 MILES EAST NORTHEAST OF
MANTENO TO 4 MILES NORTHWEST OF GRANT PARK. SIMILAR DAMAGE
INDICATORS WERE FOUND IN BOTH TORNADOES. THIS INCLUDED MULTIPLE
LARGE HARDWOOD AND SOFTWOOD TREES...MANY OF THEM HEALTHY...EITHER
SNAPPED AT THE TRUNK OR UPROOTED IN CONVERGENT PATHS.
FURTHERMORE...THREE SEPARATE FARMSTEADS SUSTAINED HEAVY DAMAGE TO
BARNS/OUTBUILDINGS. ADDITIONAL OBSERVED DAMAGE INCLUDED SNAPPED
WOOD POWER POLES OR BROKEN WOOD CROSS MEMBERS...AS WELL AS DEFINED
NARROW PATHS IN CORN FIELDS.

THERE WERE TWO BARNS WITH COMPLETE LOSS OF ROOF STRUCTURE AND
ONLY SOME WALLS REMAINING. THE METAL ROOFING MATERIAL AT ONE
LOCATION WAS DEPOSITED 300 YARDS DOWNSTREAM IN A NARROW PATH WHILE
ONE PIECE OF DEBRIS WAS DEPOSITED 50 YARDS TO THE LEFT OF THE MAIN
DEBRIS FIELD. A 2X6 WOOD BOARD SNAPPED FROM THE ROOF WAS TOSSED
INTO THE FIELD AND SPEARED AT LEAST ONE FOOT INTO THE GROUND.
ANOTHER OLDER BARN WAS COMPLETELY DESTROYED AT A FARM NEAR E 1100N
ROAD. A WELL BUILT SHED AT THE SAME LOCATION THAT WAS ANCHORED BY
CEMENT PILINGS WAS BLOWN OFF THE BLOCKS AND DESTROYED AND THE
PILINGS WERE ALSO TOSSED UP TO 40 FT. THE RESIDENCE AT THIS
FARMSTEAD SUFFERED A SMALL CRACK IN THE FOUNDATION. A 4000 LB
TRAILER WAS PARTIALLY LIFTED AND MOVED 40 TO 50 FEET AT A FARM
ALONG N 10000E RD.

---------------------------------------------------------------

.TORNADO # 7

...FIRST OF TWO TORNADOES NORTHEAST OF GRANT PARK IN KANKAKEE
COUNTY...

RATING:                 EF-1
ESTIMATED PEAK WIND:    105-110 MPH
PATH LENGTH /STATUTE/:  3.4 MILES
PATH WIDTH /MAXIMUM/:   200 YARDS
FATALITIES:             NONE
INJURIES:               NONE

START DATE:             JUNE 30 2014
START TIME:             1032 PM CDT
START LOCATION:         4.3 MILES NORTHEAST OF GRANT PARK
START LAT/LON:          41.2651/-87.5685

END DATE:               JUNE 30 2014
END TIME:               1037 PM CDT
END LOCATION:           4.8 MILES WEST-SOUTHWEST OF LOWELL IN
END LAT/LON:            41.2841/-87.5080


.TORNADO # 8

...SECOND OF TWO TORNADOES NORTHEAST OF GRANT PARK IN KANKAKEE
COUNTY...

RATING:                 EF-1
ESTIMATED PEAK WIND:    105-110 MPH
PATH LENGTH /STATUTE/:  1.7 MILES
PATH WIDTH /MAXIMUM/:   100 YARDS
FATALITIES:             NONE
INJURIES:               NONE

START DATE:             JUNE 30 2014
START TIME:             1033 PM CDT
START LOCATION:         5 ENE GRANT PARK
START LAT/LON:          41.2624/-87.5540

END DATE:               JUNE 30 2014
END TIME:               1035 PM CDT
END LOCATION:           7 ENE GRANT PARK
END LAT/LON:            41.2769/-87.5721


SURVEY SUMMARY:

THE FIRST TORNADO TOUCHED DOWN NEAR A CHURCH ON COUNTY RD
13...SNAPPING HARDWOOD AND SOFTWOOD TREES. A LARGE LIMB SMASHED
THROUGH THE STAINED GLASS WINDOWS OF THE CHURCH AND THE FORCE OF
THIS CAUSED DAMAGE TO THE WINDOW FRAME INSIDE THE BUILDING. IN
ADDITION...LARGE TREE BRANCH IMPALED ITSELF INTO THE CHURCH. A
DOOR INSIDE THE CHURCH WAS BLOWN OPEN AND RIPPED OFF. THERE WAS
SOME MINOR STRUCTURAL INTEGRITY DAMAGE NOTED INSIDE THE CHURCH.
AS THE TORNADO THEN MOVED ALONG E 10500N ROAD...IT CAUSED
SIGNIFICANT DAMAGE TO AN UNDER CONSTRUCTION BUT SEALED SINGLE
FAMILY RESIDENCE. A SECTION OF THE ROOF WAS REMOVED...WHICH CAUSED
A CRACK IN THE FRAME OF THE HOUSE AND A LARGE WALL SECTION
COLLAPSED OUTWARD. CONSISTENT SNAPPING OR UPROOTING OF TREES WAS
NOTED IN A CONVERGENT MANNER AS THE TORNADO PATH CONTINUED ACROSS
THE STATE LINE INTO LAKE COUNTY BEFORE ENDING WEST-SOUTHWEST OF
LOWELL. ALL OF THE MOST INTENSE DAMAGE WITH THIS TORNADO WAS
CONSISTENT WITH THAT OF A HIGHER END EF-1 TORNADO.

THE SECOND TORNADO BEGAN NOT FAR SOUTHEAST OF WHERE THE FIRST ONE
DID. THE MOST SIGNIFICANT DAMAGE WAS ON A FARMSTEAD INCLUDING LARGE
HARDWOODS SNAPPED...WINDOWS IN THE RESIDENCE BLOWN IN AND THE
COMPLETE DESTRUCTION OF THREE STORY TALL BARN WITH DIMENSIONS OF
88X60. FURTHERMORE...A LARGE BRANCH WAS IMPALED INTO THE FRONT OF
THE RESIDENCE.

------------------------------------------------------------------

.TORNADO # 9

...TORNADO SOUTH AND SOUTHEAST OF LOWELL IN LAKE COUNTY INDIANA...

RATING:                 EF-1
ESTIMATED PEAK WIND:    105-110 MPH
PATH LENGTH /STATUTE/:  6 MILES
PATH WIDTH /MAXIMUM/:   500 YARDS
FATALITIES:             NONE
INJURIES:               NONE

START DATE:             JUNE 30 2014
START TIME:             1043 PM CDT
START LOCATION:         3 S LOWELL
START LAT/LON:          41.2561/-87.4104

END DATE:               JUNE 30 2014
END TIME:               1048 PM CDT
END LOCATION:           6.1 MILES EAST-SOUTHEAST OF LOWELL IN
END LAT/LON:            41.2723/-87.2965

SURVEY SUMMARY:

THE TORNADO BEGAN NEAR COLFAX STREET SOUTH OF LOWELL AND THEN
TRACKED EAST-NORTHEAST TO NEAR INTERSTATE 65. THE MOST SIGNIFICANT
DAMAGE NOTED INCLUDED TWO SNAPPED WOODEN POWER POLES AND
SUBSTANTIALLY DAMAGED GRAIN BINS ON A FARM EAST OF HARRISON STREET
THAT COULD NOT BE ACCESSED DUE TO DOWNED POWER LINES. AT A
FARMSTEAD NEAR THE INTERSECTION OF HARRISON STREET AND W 191ST
AVENUE...A WOODEN BARN WAS COMPLETELY DESTROYED...ALONG WITH
SEVERAL LARGE HARDWOODS AND SOFTWOODS SNAPPED AT THE TRUNK. THE
DAMAGE WAS CONSISTENT WITH A HIGHER END EF-1 TORNADO.

------------------------------------------------------------------

.TORNADO # 10

...TORNADO IN AND NEAR DE MOTTE IN JASPER COUNTY...

RATING:                 EF-1
ESTIMATED PEAK WIND:    100-105 MPH
PATH LENGTH /STATUTE/:  6 MILES
PATH WIDTH /MAXIMUM/:   200 YARDS
FATALITIES:             NONE
INJURIES:               NONE

START DATE:             JUNE 30 2014
START TIME:             1049 PM CDT
START LOCATION:         4 WSW DE MOTTE IN
START LAT/LON:          41.1888/-87.2676

END DATE:               JUNE 30 2014
END TIME:               1055 PM CDT
END LOCATION:           2 ENE DE MOTTE IN
END LAT/LON:            41.2008/-87.1563

SURVEY SUMMARY:

A 100-200 YARD SWATH OF CONSISTENT TREE DAMAGE...WITH NUMEROUS
SNAPPED TREES...BEGAN EAST-SOUTHEAST OF DE MOTTE BETWEEN N CR 1150
W AND N CR 1100 W JUST NORTH OF W CR 1200 N. THE DAMAGE CONTINUED
EAST-NORTHEAST JUST TO THE EAST AND THEN THROUGH THE CENTER OF DE
MOTTE NORTH OF 9TH STREET. JUST EAST OF DE MOTTE ALONG ORCHID
STREET...A BARN WAS COMPLETELY DESTROYED AND DOUBLE WIDE
MANUFACTURED HOME EXPERIENCED SOME STRUCTURAL AND/OR ROOF DAMAGE.

------------------------------------------------------------------

.TORNADO # 11

...TORNADO NORTHEAST OF DE MOTTE IN JASPER COUNTY...

RATING:                 EF-1
ESTIMATED PEAK WIND:    90 TO 100 MPH
PATH LENGTH /STATUTE/:  1 MILE
PATH WIDTH /MAXIMUM/:   100 YARDS
FATALITIES:             NONE
INJURIES:               NONE

START DATE:             JUNE 30 2014
START TIME:             1055 PM CDT
START LOCATION:         4 ENE DE MOTTE IN
START LAT/LON:          41.2230/-87.1280

END DATE:               JUNE 30 2014
END TIME:               1056 PM CDT
END LOCATION:           5 ENE DE MOTTE IN
END LAT/LON:            41.2240/-87.1099

SURVEY SUMMARY:

THIS TORNADO TRACKED ALONG W CR 1450 N WHERE THERE WERE SNAPPED
TREES...WOOD POWER POLES LEANING AND DAMAGE TO TWO FARMSTEADS.
ON ONE...THE DOORS COLLAPSED IN A POLE BARN. IN ANOTHER POLE
BARN...THE WALLS COLLAPSED AFTER THE ROOF WAS BLOWN OFF. THE
DAMAGE IN THIS TORNADO PATH WAS CONSISTENT WITH MAXIMUM SPEEDS OF
100-105 MPH.

-----------------------------------------------------------------

THE NATIONAL WEATHER SERVICE WANTS TO THANK EMERGENCY MANAGEMENT
AND LAW ENFORCEMENT IN MULTIPLE COUNTIES FOR HELP WITH THIS SURVEY.
RESIDENTS AND TRAINED STORM SPOTTERS PROVIDED VALUABLE ACCOUNTS
AS WELL. A SPECIAL THANKS ALSO GO TO RON PRZYBYLINSKI OF THE NWS
ST LOUIS OFFICE AND ANTHONY LYZA OF THE UNIVERSITY OF ALABAMA
IN HUNTSVILLE FOR THEIR INSIGHT AND ANALYSIS.

$$

MTF/RC/IZZI




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