EF1 Tornado Confirmed In Northern Jasper County From Derecho

July 2nd, 2014 at 11:53 pm by under Chad's WLFI Weather Blog

NWS Chicago has confirmed one EF1 tornado occurred in the June 30-July 1 derecho in our viewing area.

Embedded in the significant damaging straight-line winds, it appears a tornado (perhaps multiple tornadoes) occurred in northern Jasper County east & northeast of Demotte in an 8-mile path.

Below is image of velocity data as tornado was northeast of Demotte before lifting.  At this point, it was still likely as EF1.  Velocity data still indicated 95 mph winds at beam level about 4.5 miles northeast of Demotte at this time.

A tornado was also confirmed near Lowell.  You can see the signature of it in the second image.

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Tornadoes were confirmed in Kankakee & Will counties in Illinois.  However, extreme straight-line winds to 100 mph hit Morris, Illinois.

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Pics of the tornado damage are courtesy of NWS Chicago:

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TORNADO # 5 IN AND NEAR DEMOTTE INDIANA...

RATING:                 EF-1
ESTIMATED PEAK WIND:    100-105 MPH
PATH LENGTH /STATUTE/:  8.0 MILES
PATH WIDTH /MAXIMUM/:   200 YARDS
FATALITIES:             NONE
INJURIES:               NONE

START DATE:             JUNE 30 2014
START TIME:             1049 PM CDT
START LOCATION:         3.3 MILES EAST OF DE MOTTE IN
START LAT/LON:          41.1909/-87.2613

END DATE:               JUNE 30 2014
END TIME:               1056 PM CDT
END LOCATION:           4.9 MILES NORTHEAST OF DE MOTTE IN
END LAT/LON:            41.2240/-87.1138

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.
FURTHER NORTHEAST ALONG W CR 1450 N NEAR THE END OF THE DAMAGE
PATH...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.

IT CANNOT BE CONCLUSIVELY RULED OUT THAT MORE THAN ONE TORNADO
TOUCHED DOWN ALONG THE 8 MILE LONG DAMAGE PATH.

11 Responses to “EF1 Tornado Confirmed In Northern Jasper County From Derecho”

  1. Tom says:

    Thanks for the info Chad! Since 1948 they have taken the readings at 7 or 8am at the Purdue Ag farm, so I went through and adjusted all of the temps. so they would be in line with all of the data from before 1948. In the old days, they took the reading at 4 or 5pm. The 69 degrees in 1869 occured on July 4, and it was 68 on July 4, 1997 but was recorded on July 5. It is a mess because they have changed the times that they record the data. Thanks for offering to share your weather data. Right now I am working on weather from the 1880′s. If you have any info that you would be willing to share, I would really appreciate it. I love all of the historic weather that you put on here. Maybe we could get together sometime and share weather information. Have a happy 4th of July!

  2. We have friends who live just south of Hebron and north of DeMotte. They were lucky, no damage at their home but said on the way to DeMotte the next morning south on #231 they saw a home that had 7-8 trees down at that spot.

  3. Just got an email from friends south of Lowell about a mile. This is her email:

    “Hi!

    I just got this…. Actually we were spared, just fallen branches, but JUST south and west of us it was bad! 41 & south Route 2 (Belshaw Road) had a tree fall and take power lines down so they still have no power. Everything sw and south of us had whole trees down, power lines down and we heard that in Grant Park the wind sheared the tops of the trees completely off. Two roads west and just south of our road power lines down, trees down or broken off. It looks like a war zone. We heard that Morocco had a tornado touchdown. Everyone on both sides of the state line and all of Lowell was without power. We put in a whole house generator this spring and are still thanking God that we could afford it.
    There is flooding everywhere in the fields. The lower ground had corn that is dying around Schneider and along the Kankakee River. DeMotte has lots of trees down, too as well as east of Lowell. We live on this hill and are amazed that we only lost branches. One is a large one laying on the dormers on the east side of our garage that —— will have to climb to the peak of the roof and cut it loose and push it to the ground. It did no damage.
    A few pole barns and barns lost roofs and have damaged doors.”

  4. Teri says:

    Mary Anne ,so much damage that many don’t realize the extend of damage.:(

    Today is a pretty day, weather wise, almost feels like fall, a good cloud watching day;)

  5. Teri says:

    WOW typos, sorry!

  6. Chad Evans says:

    Hey Tom! I would love to meet with you some time. You have a great & vast knowledge of weather history that I admire. The COOP data is indeed confusing in terms of temperature & snowfall. I do have some old Signal Service records way back from Rensselaer & Lafayette prior to the Civil War that are great. I would love to share anything I have.

    Thanks a lot! :)

  7. Chad Evans says:

    Thanks for that MA! I will include this in the storm write-up if you or your friend does not mind. Radar is great, but human eyes are the best!

  8. Thx, Teri and Chad! There is much more damage than has been reported, as I am sure is the case in most events. Just north of Rensselaer there is crop damage and lots of trees down. Near Jct #14 and #231. From there north it is not good I think. That would be about 7 miles north of Rensselaer on #231.

    Feel free to do so, Chad…no names were mentioned…unlike the other DAY, TERI!! Still cant believe I did that ;-(

  9. Teri says:

    LOL Mary Anne!!!! ;)

  10. Tom says:

    Thank you Chad! Your knowledge of weather history is amazing. I would love to see any weather data prior to the Civil War. I don’t have much info from the Rensselaer area or much data from the 1840′s or early 1850′s. I know you are really busy, so whenever you have time, I thought we could meet at the Tippecanoe County Public Library. wednesday is good for me, but I will meet with you whenever is convenient for you. Maybe we can get together sometime in July? Let me know if the Library is a good place to meet. I will bring some of the info that I have. You probably have most of the info that I have, but I might have some weather history that you might find interesting and have never seen before. I’m really looking forward to meeting with you.

  11. Ryan H in WL says:

    Looking forward to the active week ahead…

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