...A VERY HUMID AIR MASS WILL COMBINE WITH A SLOW MOVING UPPER
DISTURBANCE AND NEARLY STATIONARY FRONTAL BOUNDARY AT THE SURFACE
TO CREATE THE POTENTIAL FOR FLASH FLOODING THROUGH TUESDAY FROM
TRAINING...HEAVY SHOWERS AND THUNDERSTORMS.
POTTER-CAMERON-NORTHERN CLINTON-CLEARFIELD-NORTHERN CENTRE-
SOUTHERN CENTRE-CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN-JUNIATA-SOMERSET-
BEDFORD-FULTON-FRANKLIN-TIOGA-NORTHERN LYCOMING-SULLIVAN-
SOUTHERN CLINTON-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR-
NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL-LEBANON-
CUMBERLAND-ADAMS-YORK-LANCASTER-
916 PM EDT MON JUL 1 2013
...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH TUESDAY EVENING...
THE FLASH FLOOD WATCH CONTINUES FOR
* A PORTION OF CENTRAL PENNSYLVANIA...INCLUDING THE FOLLOWING
COUNTIES...ADAMS...BEDFORD...BLAIR...CAMBRIA...CAMERON...
CLEARFIELD...COLUMBIA...CUMBERLAND...DAUPHIN...FRANKLIN...
FULTON...HUNTINGDON...JUNIATA...LANCASTER...LEBANON...
MIFFLIN...MONTOUR...CENTRE...CLINTON...LYCOMING...
NORTHUMBERLAND...PERRY...POTTER...SCHUYLKILL...SNYDER...
SOMERSET...SULLIVAN...TIOGA...UNION AND YORK.
* THROUGH TUESDAY EVENING.
* RECENT RAINS HAVE LEFT THE GROUND WET AND MOST STREAMS ARE
RUNNING ABOVE NORMAL. DEEP TROPICAL MOISTURE WILL KEEP THE AREA
UNDER THE THREAT OF HEAVY SHOWERS AND THUNDERSTORMS THAT COULD
CAUSE RAINFALL RATES IN EXCESS OF 2 INCHES PER HOUR...CAUSING
LOCALIZED FLASH FLOODING. ALTHOUGH THE THREAT OF FLOODING
OVERNIGHT IS LOW...IT WILL INCREASE AGAIN ON TUESDAY AS SHOWERS
RE-INTENSIFY.
* NORMAL LOW LYING AREAS...AS WELL AS SMALLER STREAMS COULD SEE
FLOODING DEVELOP QUICKLY AS LOCALIZED DOWNPOURS DEVELOP AND
MOVE NORTH ACROSS THE AREA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.
YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.
