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Public Information Statement
National Weather Service Chicago IL
832 PM CDT Fri May 31 2019 /932 PM EDT Fri May 31 2019/

...NWS DAMAGE SURVEY FOR 5/27/2019 TORNADO EVENT...

.UPDATE...Two additional EF-0 tornadoes have been added 
based on damage data received and analyzed in context to
radar imagery. These were added for northern Will County 
and far southern Cook County in Illinois. Additional damage 
in Kendall, northern Will, and southern Cook Counties was 
determined to be from straight-line winds. The damage in 
Benton County, Indiana was also likely from straight-line 
winds.

.OVERVIEW...The NWS Chicago office, with the help of 
Emergency Management, law enforcement, trained storm 
spotters, and academic partners has determined five EF-0 
tornadoes occurred on Monday (Memorial Day) along with
some areas of straight-line wind damage. Thank you to
those partners for their assistance. 


.Plattville Area Tornado in Southern Kendall County 
Illinois...

Rating:                 EF-0
Estimated peak wind:    65 mph
Path length /Statute/:  1 mile
Path width /Maximum/:   30 yards
Fatalities:             0
Injuries:               0

Start date:             5/27/2019 
Start time:             1:47 PM CDT
Start location:         2.5 NNW of Plattville IL
Start Lat/Lon:          41.5732 / -88.4136

End date:               5/27/2019
End time:               1:48 PM CDT
End location:           2.5 N of Plattville IL
End_lat/lon:            41.5730 / -88.3948

A tornado briefly touched down near the intersection of 
Walker Road and Ashley Road. Video and photo show that the 
tornado kicked up dust in an open field with no damage 
reported.


.Romeoville Area Tornado in Northern Will County 
Illinois...

Rating:                 EF-0
Estimated peak wind:    75 mph
Path length /Statute/:  3.3 miles
Path width /Maximum/:   300 yards
Fatalities:             0
Injuries:               0

Start date:             5/27/2019 
Start time:             2:04 PM CDT
Start location:         2 SW of Romeoville IL
Start Lat/Lon:          41.6174 / -88.1374

End date:               5/27/2019
End time:               2:14 PM CDT
End location:           2 SSE of Romeoville IL
End_lat/lon:            41.6123 / -88.0752

A tornado developed quickly in southwest Romeoville
and moved east, tracking just north of Lewis University
Airport. Damage was relatively minor, mostly consisting 
of light roof damage, leaning utility poles, and downed 
limbs. This supercell storm that produced this tornado 
also resulted in fairly widespread corridors of 
straight-line wind damage from Kendall County through
southern Cook County. Some of these strongest winds were
accompanied by large hail.


.Paw Paw Area Tornado in Eastern Lee County Illinois...

Rating:                 EF-0
Estimated peak wind:    65 mph
Path length /Statute/:  0.7 miles
Path width /Maximum/:   30 yards
Fatalities:             0
Injuries:               0

Start date:             5/27/2019 
Start time:             4:27 PM CDT
Start location:         4 SW of Paw Paw IL
Start Lat/Lon:          41.6579 / -89.0466

End date:               5/27/2019
End time:               4:28 PM CDT
End location:           4 SW of Paw Paw IL
End_lat/lon:            41.6579 / -89.0332

A brief tornado occurred based on trained spotter reports.
This was just east of Interstate 39. Damage was not 
reported with this touchdown. 


.Sauk Village Tornado in Southern Cook County Illinois...

Rating:                 EF-0
Estimated peak wind:    85 mph
Path length /Statute/:  0.8 mile
Path width /Maximum/:   50 yards
Fatalities:             0
Injuries:               0

Start date:             5/27/2019 
Start time:             4:27 PM CDT
Start location:         1 SSE of Sauk Village IL
Start Lat/Lon:          41.4825 / -87.5464

End date:               5/27/2019
End time:               4:30 PM CDT
End location:           1 E of Sauk Village IL
End_lat/lon:            41.4903 / -87.5339

This tornado occurred just prior to the Dyer, Indiana
tornado from the same supercell storm. The tornado was 
brief and produced only minor damage, including to roofs 
and a downed light pole onto a car. 
 

.Dyer Tornado in Lake County Indiana...

Rating:                 EF-0
Estimated peak wind:    85 mph
Path length /Statute/:  1.1 miles
Path width /Maximum/:   100 yards
Fatalities:             0
Injuries:               0

Start date:             5/27/2019 
Start time:             4:30 PM CDT
Start location:         1 SSW of Dyer IN
Start Lat/Lon:          41.4924 / -87.5256

End date:               5/27/2019
End time:               4:33 PM CDT
End location:           1.2 SE of Dyer IN
End_lat/lon:            41.4822 / -87.5053

This tornado happened just after the Sauk Village, IL one 
with the same storm circulation recycling, and just happened 
to do so across the state line. This tornado caused damage in 
a subdivision to trim, shingles, siding, and fascia on 
several homes, as well as to a chimney on one home. Multiple 
trees were snapped and many lost limbs. The tornado also 
flipped a backyard shed and damaged fencing. The homes 
between Willow and Scotty Lanes appeared to sustain the worst 
damage.

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 events and publication in
NWS Storm Data. 

$$