[MTHOLLYSVRWX] Special Weather Statement : PHI@ 9/14/2011 7:53:41 PM

[svrwx at wx3i.net]

WWUS81 KPHI 142353
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
753 PM EDT WED SEP 14 2011

MDZ008-PAZ060-061-067-150145-
BERKS PA-CECIL MD-CHESTER PA-LEHIGH PA-
753 PM EDT WED SEP 14 2011

...STRONG THUNDERSTORMS WILL LIKELY AFFECT BERKS...CECIL...CHESTER 
AND LEHIGH COUNTIES...

AT 743 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 40 MILES NORTHWEST
OF LANCASTER TO 15 MILES WEST OF LANCASTER TO 27 MILES SOUTHWEST OF
LANCASTER TO 41 MILES WEST OF BALTIMORE...MOVING EAST AT 20 MPH. THE
THUNDERSTORMS WILL BE NEAR GLEN ROY...ROCK SPRINGS AROUND 900 PM...
MOUNT VERNON...HOMEVILLE AROUND 915 PM...PORT CLINTON...NEW MORGAN
AROUND 930 PM...MODENA AND FAIR HILL AROUND 945 PM.

THIS LINE OF THUNDERSTORMS HAVE HAD A HISTORY OF BEING PROLIFIC 
CLOUD TO GROUND LIGHTNING PRODUCERS. FIVE MINUTE CLOUD TO GROUND 
LIGHTNING STRIKES HAVE AVERAGED AROUND TWO HUNDRED FIFTY WITHIN THIS 
LINE. DO NOT SEEK SHELTER UNDER TREES WHEN LIGHTNING 
THREATENS...MOVE QUICKLY INDOORS WHEN A THUNDERSTORM APPROACHES. 

IN ADDITION TO THE LIGHTNING, VERY HEAVY RAIN WILL FALL WITH THE 
STRONGEST STORMS AND MAY DROP A QUICK HALF INCH AND PRODUCE POOR 
DRAINAGE FLOODING. WIND GUSTS TO 40 MPH AND SMALL HAIL ARE POSSIBLE 
WITH THESE STORMS, ESPECIALLY IN BERKS COUNTY.

WHILE THE AIR MASS IS NOT AS UNSTABLE AS IT WAS EARLIER TODAY, IT
SHOULD BE UNSTABLE ENOUGH TO SUPPORT THE CONTINUATION OF 
THUNDERSTORMS INTO THE REGION.
 
LAT...LON 4059 7603 4064 7600 4066 7586 4068 7589
      4079 7563 4065 7549 4066 7543 4053 7535
      4042 7549 4056 7572 3989 7557 3979 7574
      3960 7578 3938 7604 3953 7599 3956 7610
      3972 7624 3978 7607 4014 7590 4050 7644

$$

TFG