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Public Information Statement
National Weather Service St Louis MO
148 PM CDT Fri May 15 2026


...NWS Damage Survey for 05/16/25 Tornado Event - Update...

.Update...Changes to the tornado that passed through
St. Louis County, St. Louis City, and Madison County
in IL on 05/16/25 have been made.


..St. Louis Tornado...

Rating:                 EF3
Estimated Peak Wind:    152 mph
Path Length /statute/:  12.29 miles
Path Width /maximum/:   3168 yards
Fatalities:             4
Injuries:               38

Start Date:             05/16/2025
Start Time:             02:39 PM CDT
Start Location:         1 W Clayton / St. Louis County / MO
Start Lat/Lon:          38.6439 / -90.3466

End Date:               05/16/2025
End Time:               02:53 PM CDT
End Location:           1 WNW Granite City / Madison County / IL
End Lat/Lon:            38.7197 / -90.1499

Survey Summary:
The tornado touched down immediately east of Interstate 170 near
Forest Park Parkway, quickly reaching EF-1 strength as it moved
eastward. As it moved into the Forest Park, the tornado began to
widen and shift to the northeast, reaching EF-2 strength
immediately north of the park. Shortly thereafter, the tornado
reached its maximum intensity (EF-3, 152 mph winds) and width
(1.8 miles) as it moved north of Delmar Boulevard, before briefly
falling back to EF-2 strength. The tornado again reached EF-
3 intensity through portions of Fountain Park and the Greater
Ville, with its width narrowing to 1.4 miles. Additional
widespread EF-2 damage was surveyed through O Fallon and O Fallon
Park. The tornado began to quickly dissipate as it reached the
Mississippi River, falling to EF-1 strength and the width
dropping below 1 mile. The tornado then ended on the north side
of Granite City. In addition to a ground survey, hi-res aerial
imagery from the MOSAVE coalition and Vexcel satellite imagery
was used to determine damage extent.

..Madison County Tornado...

Rating:                 EF1
Estimated Peak Wind:    107 mph
Path Length /statute/:  11.64 miles
Path Width /maximum/:   525 yards
Fatalities:             0
Injuries:               0

Start Date:             05/16/2025
Start Time:             02:50 PM CDT
Start Location:         1 SW Granite City / Madison County / IL
Start Lat/Lon:          38.7026 / -90.1526

End Date:               05/16/2025
End Time:               03:05 PM CDT
End Location:           1 W Edwardsville / Madison County / IL
End Lat/Lon:            38.7967 / -89.9756

Survey Summary:
A second tornado developed as the St. Louis tornado was
dissipating, touching down in Granite City near Niedringhaus
Avenue and 19th Street. This tornado remained at EF-0 intensity
as it tracked to the northeast. As the tornado moved north of
Pontoon Beach, it briefly strengthened to EF-1 strength. The
tornado continued to the northeast, crossing the I-255/I-
270 interchange, intensifying to EF-1 strength as it moved toward
and just south of Southern Illinois University-Edwardsville. The
tornado then dissipated as it moved into southwestern
Edwardsville. In addition to a ground survey, hi-res aerial
imagery from the MOSAVE coalition and Vexcel satellite imagery
was used to determine damage extent.

&&

EF Scale: The Enhanced Fujita Scale classifies tornadoes into the
following categories:

EF0.....65 to 85 mph
EF1.....86 to 110 mph
EF2.....111 to 135 mph
EF3.....136 to 165 mph
EF4.....166 to 200 mph
EF5.....>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.


$$

Elmore