162  
NOUS41 KPHI 040008  
PNSPHI  
DEZ001>004-MDZ008-012-015-019-020-NJZ001-007>010-012>027-PAZ054-  
055-060>062-070-071-101>106-040415-  
 
PUBLIC INFORMATION STATEMENT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
808 PM EDT FRI JUL 3 2015  
 
...MACROBURST /STRAIGHT LINE WIND DAMAGE/ CONFIRMED IN THE CHESTER  
AREA OF DELAWARE COUNTY PENNSYLVANIA...  
 
LOCATION...ASTON/BROOKHAVEN/UPLAND/CHESTER CITY IN DELAWARE COUNTY  
PENNSYLVANIA  
DATE...JUNE 23, 2015  
ESTIMATED TIME...544-551 PM EDT  
ESTIMATED MAXIMUM WIND SPEED...85 MPH  
MAXIMUM PATH WIDTH...1.5 MILES  
PATH LENGTH...6.0 MILES  
BEGINNING LAT/LON...39.89N 75.46W  
ENDING LAT/LON...39.85N 75.35W  
* FATALITIES...0  
* INJURIES...0  
 
* THE INFORMATION IN THIS STATEMENT IS PRELIMINARY AND SUBJECT TO  
CHANGE PENDING FINAL REVIEW OF THE EVENT(S) AND PUBLICATION IN  
NWS STORM DATA.  
   
..SUMMARY
 
 
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS CONFIRMED A  
MACROBURST /STRAIGHT LINE WIND DAMAGE IN THE CHESTER CITY AREA IN  
SOUTHERN DELAWARE COUNTY PENNSYLVANIA ON JUNE 23, 2015.  
 
A NATIONAL WEATHER SERVICE SURVEY TEAM ACCOMPANIED THE LOCAL AND  
COUNTY EMERGENCY MANAGEMENT OFFICIALS TO ASSESS DAMAGE IN ASTON,  
BROOKHAVEN, UPLAND AND CHESTER CITY.  
 
THERE WERE HUNDREDS OF UPROOTED AND SNAPPED HARDWOOD AND SOFTWOOD  
TREES IN THE AFFECTED AREA. THESE TREES FELL TO THE EAST-SOUTHEAST.  
AT LEAST 30 HOMES WERE CONDEMNED IN DELAWARE COUNTY AS A RESULT OF  
THE DAMAGE FROM TREES FALLING ON HOUSES. MANY ROADS WERE IMPASSABLE  
AS A RESULT OF DOWNED TREES AND POWER LINES. SOME OF THE MOST  
CONCENTRATED TREE DAMAGE OCCURRED IN TRIMBLE ESTATES NEIGHBORHOOD OF  
BROOKHAVEN.  
 
ADDITIONAL DAMAGE TO RESIDENTIAL HOMES FROM THE STRONG WINDS WERE  
MAINLY LIMITED TO MINOR SHINGLE AND SIDING LOSS. HOWEVER, THERE WERE  
TWO TOWNHOUSES IN CHESTER CITY THAT SUSTAINED MAJOR OR COMPLETE LOSS  
OF THE ROOF STRUCTURE. ANOTHER TOWNHOUSE IN CHESTER CITY EXPERIENCED  
A COMPLETE COLLAPSE OF THE BRICK WALL TO THE FRONT OF THE HOUSE. THE  
CONDITION OF THESE TOWNHOUSES PRIOR TO THE STORM WERE COMPROMISED  
DUE TO PRE-EXISTING FACTORS.  
 
A TRACTOR TRAILER TRAVELING ALONG INTERSTATE-95 IN CHESTER WAS  
OVERTURNED AS A RESULT OF THE STRONG WINDS. ABOUT A HALF OF A MILE  
DOWNWIND, SEVERAL WINDOWS WERE BLOWN IN ON THE WEST-FACING SIDE A  
LARGE FACTORY.  
 
THIS INFORMATION CAN ALSO BE FOUND ON OUR WEBSITE AT  
WEATHER.GOV/PHI.  
 
FOR REFERENCE...  
A MACROBURST IS A CONVECTIVE DOWNDRAFT WITH AN AFFECTED OUTFLOW  
AREA  
OF AT LEAST 2 1/2 MILES WIDE AND PEAK WINDS LASTING BETWEEN 5 AND  
20 MINUTES. INTENSE MACROBURSTS MAY CAUSE TORNADO-FORCE DAMAGE OF  
UP TO EF3 INTENSITY. STRAIGHT-LINE WINDS ARE GENERALLY ANY WIND  
THAT IS NOT ASSOCIATED WITH ROTATION...USED MAINLY TO  
DIFFERENTIATE THEM FROM TORNADIC WINDS.  
 

 
KLEIN/MIKETTA  
 
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