National Weather Service Raw Text Product

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NOUS41 KPHI 101751
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DEZ001>004-MDZ008-012-015-019-020-NJZ001-007>010-012>024-026-027-
PAZ054-055-060>062-070-071-101>106-110600-

Public Information Statement
National Weather Service Mount Holly NJ
151 PM EDT Mon Aug 10 2020

...NWS DAMAGE SURVEY FOR 08/07/20 NEW CASTLE COUNTY DELAWARE TORNADO
AND STRAIGHT LINE WIND EVENT...

.New Castle County, Delaware Tornado...

Start Location...Ashland in New Castle County, Delaware
End Location...Montchanin in New Castle County, Delaware
Date...August 7, 2020
Estimated Time...5:40 PM EDT to 5:51 PM EDT
Maximum EF-Scale Rating...EF1
Estimated Maximum Wind Speed...105 mph
Maximum Path Width...450 yards
Path Length...3.8 miles
Beginning Lat/Lon...39.80/-75.66
Ending Lat/Lon...39.79/-75.58
* Fatalities...0
* Injuries...0

...Summary...
A tornado touched down around 5:40 PM on August 7th close to the 
Ashland Nature Center of the Delaware Nature Society or just east 
of the intersection of Brackenville Road and Barley Mill Road 
where some tree damage occurred. The tornado continued east 
southeast to the Swallow Hill area where there were multiple trees
down across Pyles Ford Road. Trees were snapped at the trunk, 
with one tree falling on the roof of a house. Pyles Ford Road was 
closed due to the amount of tree damage across the road. This wind
damage was estimated to be 105 mph, equivalent to an EF1 on the 
Enhanced Fujita Scale. 

The tornado continued in an easterly direction where substantial 
tree damage occurred just north of Valley Garden Park where over 
20 trees were uprooted or damaged. Campbell Road was also closed 
due to the multiple trees down. More damage occurred along Kennett
Pike between Kirk Road and the entrance of Wilmington Country 
Club where several trees were uprooted along with large tree limbs
knocked down. The tornado continued through the Wilmington 
Country Club where approximately 200 trees were damaged. A noted 
convergent pattern in the debris was observed in the tree damage 
across the Wilmington Country Club. The tornado then continued 
eastward before lifting prior to reaching Rockland, Delaware. No 
further damage was noted in the DuPont Country Club or on Concord 
Pike. 
 
Special thanks is extended to Mr. Lou Ruh, New Castle County 
Emergency Management, trained spotters, and the general public for
their extensive assistance with this survey.

.New Castle County, Delaware Straight-line Wind Event...

Location...Greenville and Wilmington in New Castle County Delaware
Date...August 7, 2020
Estimated Time...5:41 PM EDT to 5:59 PM EDT
Estimated Maximum Wind Speed...95 mph
Maximum Path Width...1800 yards
Path Length...4.51 miles
Beginning Lat/Lon...39.78/-75.62
Ending Lat/Lon...39.76/-75.54
* Fatalities...0
* Injuries...0

...Summary...
The straight-line wind damage, separate and south of the tornado 
track, was in a mostly divergent pattern and was associated with 
the storms severe rear-flank downdraft. The damage began just 
east of Hoopes Reservoir with around 4 trees down near the 
intersection Centreville Road and Barley Mill Road, and additional
tree damage on Hillside Road. Several trees were uprooted and 
fell on wires and poles within the Fairthone section. Additional 
trees were uprooted and damaged within the Greenville Manor 
section. Damage continued southeastward where several trees and 
large branches were knocked down on Buck Road and also in the 
Montchan section. Damage continued southward into the Henry Clay 
section where damage occurred near the Montchanin Road and Kennett
Pike intersection and continued southeast toward Rising Sun Lane.
Near Rising Sun Lane, in particular, a tree was snapped at the 
trunk with damage indicative of near 100 mph winds. Given the less
extensive amount of tree damage in this area compared to the 
Wilmington Country Club, have decided to rate the maximum value of
the estimated wind speed at 95 mph. The damage continued into 
Wilmington where trees were uprooted along West 19 Street and 
Tower Road, south of Rockford Park. Damage continued to the east 
side of Rockford Park where trees were knocked down on Rockford 
Road. The significant damage ended near the Delaware Art Museum in
the Kentmere section of Wilmington. Sporadic damage continued 
east towards the intersection of I-95 and Concord Pike where 
utility companies had to remove debris from the power lines and 
additional trees were knocked down in Haynes Park. 

Special thanks is extended to New Castle County Emergency 
Management, Mr. Lou Ruh, trained spotters and the general public 
for their extensive assistance with this survey.

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

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

$$

Robertson/Haines/Miketta/Johnson/Gorse