350
WGUS51 KPHI 222202
FFWPHI
PAC045-091-101-230100-
/O.NEW.KPHI.FF.W.0009.260622T2202Z-260623T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
602 PM EDT MON JUN 22 2026
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHEASTERN DELAWARE COUNTY IN SOUTHEASTERN PENNSYLVANIA...
SOUTHEASTERN MONTGOMERY COUNTY IN SOUTHEASTERN PENNSYLVANIA...
NORTHWESTERN PHILADELPHIA COUNTY IN SOUTHEASTERN PENNSYLVANIA...
* UNTIL 900 PM EDT.
* AT 602 PM EDT, DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA. BETWEEN 1 AND 1.5 INCHES OF
RAIN HAVE FALLEN. THE EXPECTED RAINFALL RATE IS 1 TO 2 INCHES IN 1
HOUR. ADDITIONAL RAINFALL AMOUNTS OF 0.5 TO 1.5 INCHES ARE
POSSIBLE IN THE WARNED AREA. FLASH FLOODING IS ALREADY OCCURRING.
HAZARD...FLASH FLOODING CAUSED BY THUNDERSTORMS.
SOURCE...RADAR.
IMPACT...FLOODING OF SMALL CREEKS AND STREAMS, URBAN AREAS,
HIGHWAYS, STREETS, AND UNDERPASSES AS WELL AS OTHER
DRAINAGE AND LOW LYING AREAS.
* SOME LOCATIONS THAT MAY EXPERIENCE FLASH FLOODING INCLUDE...
PHILADELPHIA, CONSHOHOCKEN, JENKINTOWN, NARBERTH, CHESTNUT HILL,
GERMANTOWN, PLYMOUTH MEETING, BRYN MAWR, TROUT LAKE, RADNOR
TOWNSHIP, KING OF PRUSSIA AND WEST CONSHOHOCKEN.
THIS INCLUDES THE FOLLOWING HIGHWAYS...
INTERSTATE 476 IN PENNSYLVANIA BETWEEN MILE MARKERS 10 AND 19.
INTERSTATE 76 IN PENNSYLVANIA BETWEEN MILE MARKERS 328 AND 339.
PENNSYLVANIA TURNPIKE BETWEEN MILE MARKERS 329 AND 330.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST
FLOOD DEATHS OCCUR IN VEHICLES.
BE AWARE OF YOUR SURROUNDINGS AND DO NOT DRIVE ON FLOODED ROADS.
LAT...LON 4011 7530 4014 7514 4003 7508 3999 7537
4005 7539 4006 7537 4007 7536 4007 7537
4007 7538 4006 7539 4007 7540 4008 7540
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...1-2 INCHES IN 1 HOUR
MJL
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