National Weather Service United States Department of Commerce

 Monrovia EF-1 Tornado Survey Summary

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
426 PM CST Tue Dec 17 2019


...NWS Damage Survey For 12/16/19 Tornado Event Update #2...

.Update...For Monrovia tornado

.Overview...EF-1 Tornado confirmed in northern Madison County

.Monrovia Tornado...

Rating:                 EF1
Estimated Peak Wind:    105 mph
Path Length /statute/:  1.25 miles
Path Width /maximum/:   25.0 yards
Fatalities:             0
Injuries:               0

Start Date:             12/16/2019
Start Time:             05:54 PM CST
Start Location:         4 SSE Harvest / Madison County / AL
Start Lat/Lon:          34.7904 / -86.7366

End Date:               12/16/2019
End Time:               06:00 PM CST
End Location:           4 SSE Harvest / Madison County / AL
End Lat/Lon:            34.8013 / -86.7194

Summary:

Minor tree damage was noted just north of Harbin Rd on
Summer Cove Circle. The tornado started producing sporatic tree
damage on Pettus Rd as it approached the Summerfield Subdivision.
It skipped along a path producing major structural damage off of
Running Brook Ct, removing nearly two thirds of a roof here. Minor
roof and siding damage occurred to surrounding homes here as
well. It was this damage that was rated EF-1, with wind speeds of
105mph. Along Sarah Jane Dr. winds lifted up an awning and caused
damage to a home, windows were broken and fences were not only
blown over but broken apart and lofted onto and into a house
behind them on Jasmine Drive. This house experienced damage from
additional debris along with fence segments and posts that
impaled the home. Minor damage was noted as the tornado proceeded
to move northeast with small branches and shingle damage was
observed in the Legacy neighborhood. A small outdoor metal shed
was damaged and several trees were snapped or uprooted along
Douglass near Golden Oak Drive before it lifted. At this point,
the tornado cycled and produced another tornado track 6.7 miles
northeast, beginning west of Meridianville, but between the two
tracks, very sporadic tree damage was found. No clear path could
be determined, linking the two tracks together, therefore, the
Meridianville track will be a separate tornado track.

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 200mph
EF5...Violent...>200mph

NOTE:
The information in this statement is preliminary and subject to
change pending final review of the events and publication in
NWS Storm Data.

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 Meridianville EF-0 Tornado Survey Summary

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
422 PM CST Tue Dec 17 2019


...NWS Damage Survey For 12/16/19 Tornado Event Update #1...

.Update...for Meridianville tornado

.Overview...EF-0 Tornado confirmed in north central Madison County

.Meridianville Tornado...

Rating:                 EF0
Estimated Peak Wind:    85 mph
Path Length /statute/:  3.16 miles
Path Width /maximum/:   37.0 yards
Fatalities:             0
Injuries:               0

Start Date:             12/16/2019
Start Time:             06:05 PM CST
Start Location:         3 WSW Meridianville / Madison County / AL
Start Lat/Lon:          34.8593 / -86.6252

End Date:               12/16/2019
End Time:               06:12 PM CST
End Location:           1 S Meridianville / Madison County / AL
End Lat/Lon:            34.8622 / -86.5706

Summary:
After cycling, the storm produced a second and weaker
tornado northeast of Liberty Hill Road, downing numerous trees in
a wooded area on a farm. From there, it approached Monroe Road,
with sporadic tree damage noted as the tornado again skipped
through the Spencer Lake and Spencer Estates Subdivisions. Minor
roof damage was noted to a couple of homes in Spencer Lake, with
one home on Madelyn Drive sustaining moderate roof damage,
splaying shingles and debris northeast into a field. It was at
this point that the tornado was rated EF-0, with wind speeds of
80mph. Additional minor tree and roof damage was noted in Spencer
Estates, uprooting a large magnolia tree, before skipping toward
Highway 231 and damaging a billboard before dissipating on the east
side of the highway. The tornado track ended on the east side of
Highway 231 with little/no additional damage found beyond this
point.

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 200mph
EF5...Violent...>200mph

NOTE:
The information in this statement is preliminary and subject to
change pending final review of the events and publication in
NWS Storm Data.