Public Information Statement
Issued by NWS Chicago, IL

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PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE CHICAGO IL
500 AM CDT MON APR 13 2015

...NWS DAMAGE SURVEY FOR 04/09/15 TORNADO EVENT...

METEOROLOGISTS CONTINUE TO EXAMINE GROUND SURVEY...AREAL
SURVEY...HIGH RESOLUTION SATELLITE AND RADAR DATA FROM THE APRIL
9TH TORNADO EVENT. ADDITIONAL SURVEYING IS EXPECTED TO RESULT IN
AT LEAST ONE ADDITIONAL TORNADO TRACK IN MCHENRY COUNTY. THUS
FAR NATIONAL WEATHER SERVICE METEOROLOGISTS HAVE CONFIRMED 5
TORNADOES...INCLUDING THE LONG TRACK EF-4 WHOSE TRACK HAS BEEN
EXTENDED FARTHER NORTH INTO FAR SOUTHERN BOONE COUNTY BASED ON
STORM CHASER VIDEO.

STORM CHASER VIDEO...CIVIL AIR PATROL AREAL SURVEYS...AND GROUND
SURVEY INFORMATION HAVE RESULTED IN THE CONFIRMATION OF 2
SATELLITE TORNADOES WHICH OCCURRED ADJACENT TO AND SIMULTANEOUSLY
WITH THE LONG TRACK EF-4 TORNADO. ONE SATELLITE TORNADO TRACK WAS
NOTED NEAR THE DEKALB COUNTY LINE IN FAR EASTERN OGLE
COUNTY...AND THE OTHER CROSSING THE DEKALB COUNTY LINE INTO FAR
SOUTHERN BOONE COUNTY.

THE TORNADO COUNT SO FAR FROM THE EVENT FOR THE NWS CHICAGO COUNTY
WARNING AREA STANDS AS FOLLOWS...

EF-4: 1
EF-1: 2
EF-0: 2

ADDITIONAL TORNADO(ES) WILL LIKELY BE CONFIRMED OVER THE NEXT
COUPLE OF DAYS AND ONCE THIS OCCURS THIS STATEMENT WILL BE
UPDATED ONE FINAL TIME.

HERE IS A LISTING OF THE PRELIMINARILY CONFIRMED TORNADOES...

.TORNADO 1...

RATING:                 EF-0
ESTIMATED PEAK WIND:    65 MPH
PATH LENGTH /STATUTE/:  2.83 MILES
PATH WIDTH /MAXIMUM/:   25 YARDS
FATALITIES:             0
INJURIES:               0

START DATE:             APRIL 09 2015
START TIME:6:37 PM CDT
START LOCATION:         2.9 MILES S CHERRY VALLEY
START LAT/LON:          42.1926/-88.9548

END DATE:               APRIL 09 2015
END TIME:6:40 PM CDT
END LOCATION:           2.5 MILES SE CHERRY VALLEY
END_LAT/LON:            42.2174/-88.9106

AN EMERGENCY MANAGER AND TRAINED SPOTTERS PHOTOGRAPHED A
TORNADO THAT TOUCHED DOWN SOUTH OF CHERRY VALLEY. THE
TORNADO DID NOT PRODUCE ANY DAMAGE.


.TORNADO 2...

RATING:                 EF-4
ESTIMATED PEAK WIND:    200 MPH
PATH LENGTH /STATUTE/:  30.2 MILES
PATH WIDTH /MAXIMUM/:   700 YARDS
FATALITIES:             2
INJURIES:               22

START DATE:APRIL 09 2015
START TIME:6:39 PM CDT
START LOCATION:0.9 MILES NE FRANKLIN GROVE
START LAT/LON:          41.8530/-89.2896

END DATE:APRIL 09 2015
END TIME:7:20 PM CDT
END LOCATION:5 NNW KIRKLAND
END LAT/LON:            42.1623/-88.8792

THIS LONG TRACKED VIOLENT TORNADO DESTROYED NUMEROUS HOMES ALONG
ITS PATH FROM NORTH CENTRAL LEE COUNTY ACROSS EASTERN
OGLE...NORTHWEST DEKALB...INTO EXTREME SOUTHERN BOONE COUNTY.


.TORNADO 3...

RATING:                 EF-0
ESTIMATED PEAK WIND:    65 MPH
PATH LENGTH /STATUTE/:  1.9 MILES
PATH WIDTH /MAXIMUM/:   100 YARDS
FATALITIES:             0
INJURIES:               0

START DATE:APRIL 09 2015
START TIME:7:05 PM CDT
START LOCATION:2.9 MILES E LINDENWOOD
START LAT/LON:          42.0583/-88.9752

END DATE:APRIL 09 2015
END TIME:7:08 PM CDT
END LOCATION:4.6 ENE LINDENWOOD
END LAT/LON:            42.0739/-88.9457

THIS BRIEF SATELLITE TORNADO OVER FAR EASTERN OGLE COUNTY WAS
CONFIRMED USING AREAL SURVEY INFORMATION AND RADAR DATA.


.TORNADO 4...

RATING:                 EF-1
ESTIMATED PEAK WIND:    110 MPH
PATH LENGTH /STATUTE/:  4.0 MILES
PATH WIDTH /MAXIMUM/:   100 YARDS
FATALITIES:             0
INJURIES:               0

START DATE:             APRIL 09 2015
START TIME:             7:15 PM CDT
START LOCATION:         3.1 MILES NW KIRKLAND
START LAT/LON:          42.1334/-88.8776

END DATE:               APRIL 09 2015
END TIME:               7:21 PM CDT
END LOCATION:           6 MILES S BELVIDERE
END_LAT/LON:            42.1334/-88.8776

THIS TORNADO PATH WAS IDENTIFIED USING STORM CHASER VIDEO...GROUND
SURVEY AND AREAL SURVEY INFORMATION. THE TORNADO FORMED IN FAR
NORTHWEST DEKALB COUNTY AND LIFTED IN FAR SOUTHERN BOONE COUNTY.


.TORNADO 5...

RATING:                 EF-1
ESTIMATED PEAK WIND:    110 MPH
PATH LENGTH /STATUTE/:  3.9 MILES
PATH WIDTH /MAXIMUM/:   50 YARDS
FATALITIES:             0
INJURIES:               0

START DATE:             APRIL 09 2015
START TIME:7:25 PM CDT
START LOCATION:         6 MILES SE BELVIDERE
START LAT/LON:          42.2442/-88.7386

END DATE:               APRIL 09 2015
END TIME:7:31 PM CDT
END LOCATION:           5.6 MILES ESE BELVIDERE
END_LAT/LON:            42.1942/-88.7748

THIS TORNADO WAS SPAWNED BY THE SAME STORM THAT PRODUCED THE LONG
TRACK EF-4 SHORTLY AFTER THAT TORNADO LIFTED.


EF SCALE: THE ENHANCED FUJITA SCALE CLASSIFIES
TORNADOES INTO THE FOLLOWING CATEGORIES.

EF0...WEAK......65 TO 85 MPH
EF1...WEAK......86 TO 110 MPH
EF2...STRONG....111 TO 135 MPH
EF3...STRONG....136 TO 165 MPH
EF4...VIOLENT...166 TO 200 MPH
EF5...VIOLENT...>200 MPH

NOTE:
THE INFORMATION IN THIS STATEMENT IS PRELIMINARY AND SUBJECT TO
CHANGE PENDING FINAL REVIEW OF THE EVENT AND PUBLICATION IN
NWS STORM DATA.

$$

NWS CHICAGO



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