Flash Flood Warning 31, NWS Philadelphia/Mount Holly

Issued

Jul 13, 1989, 10:17 AM EDT (14:17 UTC)

Expired

Jul 13, 1989, 12:15 PM EDT

In force

118 min

Issued by

NWS Philadelphia/Mount Holly

Area

Whole counties

County Montgomery County, PA

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

000 
TTAA00 KPHL 131417
FFWPHL
PAC091-131615-
 
BULLETIN - EBS ACTIVATION REQUESTED
SMALL STREAM AND URBAN FLOOD WARNING
NATIONAL WEATHER SERVICE PHILADELPHIA PA
1017 AM EDT THU JUL 13 1989
 
THE NATIONAL WEATHER SERVICE IN PHILADELPHIA HAS ISSUED A
SMALL STREAM AND URBAN FLOOD WARNING EFFECTIVE UNTIL 1215 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN SOUTHEAST PENNSYLVANIA
          ...EASTERN MONTGOMERY
 
MODERATE TO HEAVY RAINS HAVE BEEN FALLING OVER THE EASTERN HALF
OF MONTGOMERY COUNTY SINCE ABOUT 7 AM. AT 10 AM A SPOTTER FROM
HATBORO REPORTED 2.1 INCHES OF RAIN HAD FALLEN THIS MORNING AND
THAT THE PENNYPACK CREEK NEAR THE EASTERN BORDER OF UPPER
MORELAND TOWNSHIP AND THE WESTERN BORDER OF LOWER MORELAND
TOWNSHIP...NEAR THE BOROUGH OF BRYN ATHYN WAS OUT OF ITS BANKS.
 
IF YOU ARE IN THE WARNED COUNTY IN AN AREA SUBJECT TO FLOODING
MOVE TO HIGHER GROUND.  DO NOT DRIVE THROUGH FLOOD WATERS.
CLIMBING ATOP YOUR STALLED VEHICLE WILL NOT PREVENT YO@U FROM
BEING SWEPT INTO DANGEROUS STREAM CONDITIONS AS WATER LEVELS RISE.
 
JWH

In the hours before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PHILADELPHIA, PA
850 AM EDT THU JUL 13 1989

...MODERATE TO HEAVY RAIN OVER PARTS OF THE METROPOLITAN AREA...

AT 850 AM EDT SMALL AREAS OF HEAVY RAIN AND LARGE AREAS OF MODERATE
RAIN WERE FALLING OVER PARTS OF CHESTER...DELAWARE...BUCKS...MONTGOMERY
...AND PHILADELPHIA COUNTIES IN PENNSYLVANIA...AND MERCER...BURLINGTON
...AND CAMDEN COUNTIES OF SOUTHERN NEW JERSEY.  GENERAL RAINFALL OF AN
INCH AND ISOLATED AMOUNTS OF 1.5 TO 2.0 INCHES CAN BE EXPECTED BY NOON
TODAY.  THIS MAY CAUSE MINOR FLOODING OF LOW LYING AND POOR DRAINAGE
AREAS.  THE RAINFALL WILL BECOME LIGHT AND INTERMITTENT THIS AFTERNOON.

DPG

ABPA-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ALLENTOWN PA
910 AM EDT THU JUL 13 1989

...HEAVY RAINS MOVING THROUGH BERKS AND SCHUYLKILL COUNTIES...

AT 915AM THIS MORNING RADAR INDICATED A BAND OF HEAVY RAIN EXTENDING
SOUTHEAST FROM CENTRAL SCHUYLKILL COUNTY TO SOUTH OF READING IN BERKS
COUNTY. OVER AND INCH OF RAIN HAS FALLEN NEAR PINE GROVE IN WESTERN
SCHUYLKILL COUNTY DURING THE PAST SIX HOURS. THIS RAIN IS MOVING TOWARD
THE EAST AT AROUND 30 MPH AS THE AREA ITSELF EXPANDS SLOWLY NORTHWARD.

FLOODING OF SMALL STREAMS AND LOW LYING AREAS ARE POSSIBLE IN SCHUYLKILL
...BERKS...LEHIGH AND NORTHAMPTON COUNTIES LATE THIS MORNING AND THIS
AFTERNOON AS THIS RAIN AREA MOVES SLOWLY EAST ACROSS THE AREA.

$$LOEPER

Flash Flood Warnings in Pennsylvania, 1989Every flash flood warning in 1989

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.