June 28-July 1 Severe Threat

[snowlover2]

What's damaged in that pic?

See the line going right up the middle of the pic? That's the tornado path.

[Hoosier]

LOT confirmed an EF1 in Plainfield/Romeoville and IWX confirmed an EF1 in their cwa.

[vortex]

LOT confirmed an EF1 in Plainfield/Romeoville and IWX confirmed an EF1 in their cwa.

 

 Total of five now confirmed by LOT.  All EF1.  Two in Kankakee County.

[Stebo]

 Total of five now confirmed by LOT.  All EF1.  Two in Kankakee County.

Not too surprising they found a couple tornadoes down there, the two mesovortices down there were pretty strong as they passed north of Kankakee.

[Hoosier]

IWX found an EF0 in Kosciusko county so the total between LOT and IWX is up to 7.  May go up though (LOT hasn't released anything about Indiana yet other than saying that one of the Kankakee county tornadoes crossed the state line).

[Harry]

Write up from GRR..

http://www.crh.noaa.gov/images/grr/presentations/June_30th_Severe_Weather_Wrap_Up_2014-07-02_04-44-43.pdf

 

 

Per them there was some estimated 80-90mph gust along the Jackson/Calhoun line.

[Hoosier]

[Hoosier]

IWX confirmed 2 more tornadoes, an EF0 and EF1 near Plymouth.

[A-L-E-K]

cool graphic

[Hoosier]

Haven't seen any pics to back it up but I read that there were transmission towers blown down in southern Lake county IN.  It takes pretty strong winds to do that...in the EF2 to EF3 range. 

[andyhb]

Up to 501 wind reports on the SPC page.

[vortex]

One more confirmed in Kankakee County and two in Indiana.

 

 

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE CHICAGO IL
411 PM CDT WED JUL 2 2014 /511 PM EDT WED JUL 2 2014/

...NWS DAMAGE SURVEY FOR JUNE 30 2014 TORNADO EVENT...

...UPDATE FOR KANKAKEE COUNTY AND NORTHWEST INDIANA...

*THERE HAVE BEEN THREE ADDITIONAL EF-1 TORNADOES CONFIRMED. THIS
INCLUDES AN ADDITIONAL TORNADO NEAR GRANT PARK. THIS WILL BRING THE
TOTAL NUMBER OF CONFIRMED TORNADOES IN THE NWS CHICAGO FORECAST AREA
TO EIGHT.*

.TORNADOES # 1 AND 2 NORTHWEST OF GRANT PARK ILLINOIS...

RATING:                 EF-1
ESTIMATED PEAK WIND:    100-110 MPH
PATH LENGTH /STATUTE/:  4.5 MILES
PATH WIDTH /MAXIMUM/:   APPROXIMATELY 200 YARDS IN EACH TORNADO
                        WITHIN AN APPROXIMATE ONE MILE WIDE SWATH
                        ABOUT ONE MILE APART
FATALITIES:             NONE
INJURIES:               NONE

START DATE:             JUNE 30 2014
START TIME:             1025 PM CDT
START LOCATION:         3.4 MILES EAST-NORTHEAST OF MANTENO
START LAT/LON:          41.2507/-87.8340

END DATE:               JUNE 30 2014
END TIME:               1028 PM CDT
END LOCATION:           3.0 MILES NORTHWEST OF GRANT PARK
END LAT/LON:            41.2409/-87.6445

SURVEY SUMMARY:

TWO SEPARATE TORNADOES HAVE BEEN CONFIRMED WITHIN AN APPROXIMATE ONE
MILE WIDE NORTH-SOUTH PATH FROM ABOUT 3 MILES EAST NORTHEAST OF
MANTENO TO 3 MILES NORTHWEST OF GRANT PARK. SIMILAR DAMAGE
INDICATORS WERE FOUND IN BOTH TORNADOES SUPPORTIVE OF MAXIMUM EF-1
DAMAGE. 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.

TO THE SOUTH OF THE SWATH OF TORNADIC WIND DAMAGE...THERE WERE
MULTIPLE INSTANCES OF STRAIGHT LINE WIND DAMAGE SUPPORTIVE OF SPEEDS
OF 70 TO 100 MPH...INCLUDING SNAPPED OR UPROOTED HARDWOODS AND
SOFTWOODS.


.TORNADO # 3 NORTHEAST OF GRANT PARK ILLINOIS...

RATING:                 EF-1
ESTIMATED PEAK WIND:    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

SURVEY SUMMARY: MORE TO FOLLOW.


.TORNADO # 4 SOUTHEAST OF LOWELL INDIANA...

RATING:                 EF-1
ESTIMATED PEAK WIND:    110 MPH
PATH LENGTH /STATUTE/:  2.4 MILES
PATH WIDTH /MAXIMUM/:   500 YARDS
FATALITIES:             NONE
INJURIES:               NONE

START DATE:             JUNE 30 2014
START TIME:             1046 PM CDT
START LOCATION:         4.2 MILES SOUTHEAST OF LOWELL IN
START LAT/LON:          41.2683/-87.3452

END DATE:               JUNE 30 2014
END TIME:               1048 PM CDT
END LOCATION:           6.1 MILES EAST-SOUTHEAST OF LOWELL IN
END LAT/LON:            41.2818/-87.3024

SURVEY SUMMARY: MORE TO FOLLOW.


.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: MORE TO FOLLOW.

 

[Hoosier]

Counting the one that crossed in from Kankakee county Illinois, there have been two confirmed tornadoes in Lake county Indiana.  The last time - and only time since 1950 - there were multiple tornadoes in Lake county on the same day?  June 30, 1977.

[tornadotony]

Counting the one that crossed in from Kankakee county Illinois, there have been two confirmed tornadoes in Lake county Indiana. The last time - and only time since 1950 - there were multiple tornadoes in Lake county on the same day? June 30, 1977.

3/12/76 had two also I believe, at least according to Grazulis.

[Hoosier]

3/12/76 had two also I believe, at least according to Grazulis.

 

You're right.  I forgot that the Grazulis record is a bit different than the official database.  Either way, first time since 1977.

[A-L-E-K]

plainfield really is the place for twisters in Illinois 

[Hoosier]

plainfield really is the place for twisters in Illinois 

 

 

A number have passed through that area.  Tracks from 1950-2013

 

[Hoosier]

LOT has been adding some images in the DAT, some of which have power poles snapped off near the ground in the tornado southeast of Lowell.  Per the EF scale, that kind of damage has a lower bound of 98 mph with an expected value of 118 mph, or EF2, but LOT went with 110 mph winds/high-end EF1 there.  Looks like RC was on the survey team...maybe he can chime in on the decision to go EF1 instead of EF2. 

[IWXwx]

IWX has now confirmed six tornadoes in their CWA. The two latest:

 

.TORNADO #5 - WABASH/KOSCIUSKO COUNTY...

RATING: EF-1
ESTIMATED PEAK WIND: 100 MPH
PATH LENGTH /STATUTE/: APPROX 7 MILES
MILES PATH WIDTH /MAXIMUM/: EST. 150 YARDS
FATALITIES: NONE
INJURIES: NONE

START DATE: JUL 01 2014
TIME: EST. 108 AM EDT
START LOCATION: 2.8 MI SSW OF SILVER LAKE, IN
START LAT/LON: 41.0314 / -85.8964

END DATE: JUL 01 2014
END TIME: EST. 115 AM EDT
END LOCATION: 6.9 MI ESE OF SILVER LAKE, IN
END LAT/LON: 41.048 / -85.7639

SURVEY SUMMARY: AN EF-1 TORNADO TOUCHED DOWN JUST WEST OF SR 15 IN A
CORN FIELD IN NORTHWEST WABASH COUNTY. THIS TORNADO PROCEEDED EAST
NORTHEAST WITH EXTENSIVE TREE AND CROP DAMAGE NOTED. SEVERAL
FARMSTEADS ALONG THE PATH SUSTAINED MINOR TO MODERATE DAMAGE. ONE
FARM JUST NORTH OF THE COUNTY LINE ROAD IN KOSCIUSKO COUNTY HAD A
HOG BARN DESTROYED WITH MUCH OF THE DEBRIS THROWN SOUTHEASTWARD INTO
A LARGE GRAIN SILO FACILITY WITH ONE LARGE GRAIN BIN COMPLETELY
FLATTENED AND SEVERE DAMAGE TO A HARVESTER SILO. IN ADDITION A CORN
CROP FIELD TO THE SOUTH OF THE COUNTY LINE ROAD AND JUST EAST OF THE
FARM WAS FLATTENED AND SHREDDED. ADDITIONAL EXTENSIVE TREE AND CROP
DAMAGE CONTINUED BEFORE THE TORNADO DISSIPATED IN A GROVE OF TREES
JUST WEST OF CR 400E.

.TORNADO #6 - WHITLEY COUNTY...

RATING: EF-1
ESTIMATED PEAK WIND: 100 MPH
PATH LENGTH /STATUTE/: APPROX 0.4 MILES
MILES PATH WIDTH /MAXIMUM/: EST. 50 YARDS
FATALITIES: NONE
INJURIES: NONE

START DATE: JUL 01 2014
TIME: EST. 122 AM EDT
START LOCATION: 2.7 MI SW OF SOUTH WHITLEY, IN
START LAT/LON: 41.0516 / -85.6567

END DATE: JUL 01 2014
END TIME: EST. 123 AM EDT
END LOCATION: 2.2 MI SSW OF SOUTH WHITLEY, IN
END LAT/LON: 41.0551 / -85.6495

SURVEY SUMMARY: A BRIEF EF-1 TORNADO TOUCHED DOWN JUST WEST OF CR
850W IN A BEAN FIELD AND HIT A FARMSTEAD DESTROYING A BARN AND
CHICKEN COOP ALONG WITH EXTENSIVE TREE DAMAGE. MUCH OF THE DEBRIS
FROM THE BARN WAS LOFTED AND SCATTERED ACROSS THE ADJACENT FIELD TO
NORTHEAST AND EMBEDDED THROUGH THE TREELINE ONE QUARTER MILE
NORTHEAST. THIS IS ALSO WHERE A HORSE BARN LOST MOST OF ITS ROOF AND
A NEARBY HOME AND GARAGE SUSTAINED MINOR DAMAGE TO ROOFING AND
SIDING MATERIAL. HOWEVER SEVERE TREE DAMAGE OCCURRED THROUGH A LARGE
GROVE OF TREES JUST NORTH OF THIS LOCATION WITH SIGNIFICANT DEBRIS
LOADING NOTED IN THE TREES...MANY OF WHICH WERE SNAPPED AND/OR
UPROOTED.

[tornadotony]

LOT has been adding some images in the DAT, some of which have power poles snapped off near the ground in the tornado southeast of Lowell.  Per the EF scale, that kind of damage has a lower bound of 98 mph with an expected value of 118 mph, or EF2, but LOT went with 110 mph winds/high-end EF1 there.  Looks like RC was on the survey team...maybe he can chime in on the decision to go EF1 instead of EF2. 

Ricky and I were both on the survey.  The level of complexity across Kankakee/Lake/Porter/Jasper is probably only exceeded by cases like Coleridge 2014 and Grand Island 1980.  That's all I'm going to say right now.  Ricky can add more if he wants.

[Stebo]

Ricky and I were both on the survey.  The level of complexity across Kankakee/Lake/Porter/Jasper is probably only exceeded by cases like Coleridge 2014 and Grand Island 1980.  That's all I'm going to say right now.  Ricky can add more if he wants.

Interesting, I look forward to a complete write up from Chicago about this event.

[Hoosier]

Regarding what Tony said above, there's this line in the writeup for the DeMotte area tornado.

 

...

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

[tornadotony]

 

Regarding what Tony said above, there's this line in the writeup for the DeMotte area tornado.

 

...

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

It's much more important than usual that you consider absolutely nothing in that statement final.

[Hoosier]

IWX has now confirmed six tornadoes in their CWA. The two latest:

 

They've added another, so the total between them and LOT is 15 as of right now.

[andyhb]

Pretty prolifically tornadic derecho this thing was.

 

Closing out a June that should pull 2014 out of the record low tornadic activity to an extent.

[Hoosier]

Pretty prolifically tornadic derecho this thing was.

 

 

I think they're more common that what we think (the tornadoes), especially when looking back at past derecho events.  Not always easy to spot the tornadic damage when it's within a larger swath of straight line wind damage.

[BuffaloWeather]

A number have passed through that area.  Tracks from 1950-2013

 

Untitled.png

 

Wow, that is crazy. Talk about a Tornado hotspot!

[IWXwx]

There will be another tornado added to IWX's list later. There was a confirmed touchdown in Starke County near Grovertown.

[Hoosier]

PUBLIC INFORMATION STATEMENT  

NATIONAL WEATHER SERVICE CHICAGO,IL  

347 AM CDT FRI JUL 4 2014 /447 AM EDT FRI JUL 4 2014/  

   

..NWS DAMAGE SURVEY FOR JUNE 30 2014 TORNADO EVENT  

 

   

..TORNADO CONFIRMED IN NORTHERN GRUNDY COUNTY  

 

RATING: EF-0  

ESTIMATED PEAK WIND: 85 MPH  

PATH LENGTH /STATUTE/: 2 MILES  

PATH WIDTH /MAXIMUM/: 75 YARDS  

FATALITIES: NONE  

INJURIES: NONE  

 

START DATE: JUNE 30 2014  

START TIME: 944 PM CDT  

START LOCATION: 5.4 MILES NNW OF MORRIS  

START LAT/LON : 41.4411/-88.4692  

 

END DATE: JUNE 30 2014  

END TIME: 946 PM CDT  

END LOCATION: 4.5 MILES NORTH OF MORRIS  

END LAT/LON: 41.4340/-88.4288  

 

DURING AERIAL STORM SURVEY OF NORTHERN GRUNDY COUNTY THURSDAY  

AFTERNOON A TORNADO DAMAGE PATH WAS IDENTIFIED IN THE CROP FIELDS  

JUST WEST OF THE MORRIS MUNICIPAL AIRPORT.  

 

NOTE:  

THE INFORMATION IN THIS STATEMENT IS PRELIMINARY AND SUBJECT TO  

CHANGE PENDING FINAL REVIEW OF THE EVENT AND PUBLICATION IN  

NWS STORM DATA.

IZZI  

 

[RCNYILWX]

LOT has been adding some images in the DAT, some of which have power poles snapped off near the ground in the tornado southeast of Lowell. Per the EF scale, that kind of damage has a lower bound of 98 mph with an expected value of 118 mph, or EF2, but LOT went with 110 mph winds/high-end EF1 there. Looks like RC was on the survey team...maybe he can chime in on the decision to go EF1 instead of EF2.

Well, I'm honestly one who likes to be objective with the EF scale but in in the case of that damage I went back and forth on it. In the end, I felt like what some of what we saw near Grant Park could be on the same par damage/est. wind speed wise with what occurred southeast of Lowell. So I went with high end EF-1 instead of low EF-2. I'm still not completely comfortable with it and we're continuing to analyze the data. So further revisions are possible/likely until we have a finalized number and ratings on the tornadoes. After a close look at the radar data, it's likely that some of the points listed as one tornado from the survey Tony and I conducted were actually additional tornado paths.

To echo what Tony said, it was a very complex survey. There were multiple paths in close succession surrounded by a lot of fairly high end straight line wind damage. I wish we had even more time to spend on the assessment and that's after leaving the office at 945 am Tuesday and not getting back here til after 11pm. That's how it often goes though. I also firmly believe that there were additional paths that we did not get to survey yet and hopefully will or at least we'll get access to data that we'll enable us to have a full understanding of how many tornadoes occurred with the second QLCS. Even as things stand now, a truly historic event for this area.