Alert archive / Pennsylvania / Flash Flood Warnings in 1996

Flash Flood Warning 37, NWS Philadelphia/Mount Holly

June 13, 1996Bucks County, Pennsylvania

NWS Philadelphia/Mount Holly issued this flash flood warning at Jun 13, 1996, 2:00 AM EDT for Bucks County, Pennsylvania. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 13, 1996, 2:00 AM EDT (06:00 UTC)
Expired
Jun 13, 1996, 5:00 AM EDT
In force
3 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Whole counties

County Bucks County, PA

The radar

The Philadelphia radar (KDIX), 73 km from the middle of the area, began a volume at 06:00 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 00:00Z, 6.0 hours before the alert went out and 198 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Brookhaven, NY at 00:00Z on 1996-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 193 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 00:00Z on 1996-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 64 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
193 J/kg
Mixed-layer CIN
-68 J/kg
Mixed-layer LCL
693 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
64 m²/s²
0-3 km storm-relative helicity
70 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KPHL 130602
FFWPHL
PAC017-130900-

BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING FOR SMALL STREAMS
NATIONAL WEATHER SERVICE PHILADELPHIA/MOUNT HOLLY NJ
200 AM EDT THU JUN 13 1996

THE NATIONAL WEATHER SERVICE IN PHILADELPHIA/MOUNT HOLLY HAS EXTENDED
THE FLOOD WARNING FOR THE FOLLOWING LOCATION UNTIL 5 AM EDT...

IN PENNSYLVANIA

   ...SOUTHERN BUCKS COUNTY

     AT 2 AM THE NESHAMINY CREEK IN LANGHORNE AND SOME OF THE
TRIBUTARIES OF THE NESHAMINY CREEK IN SOUTHERN BUCKS COUNTY
REMAINED OUT OF THEIR BANKS.

     THE FLOOD WATERS WILL RECEDE OVERNIGHT WITH WATER LEVELS
GOING BELOW FLOOD STAGE BY SUNRISE.
                                                                      .
     REMEMBER...DO NOT ATTEMPT TO DRIVE THROUGH FLOODED ROADWAYS.
THE WATER MAY BE DEEPER THAN YOU THINK.


$$


SP

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 12, 8:15 PM EDTFlash Flood WarningPHIBucks, Montgomery3 hr
Jun 12, 10:15 PM EDTFlash Flood WarningPHIBucks4 hr

Nearby

Flash Flood Warnings in Pennsylvania, 1996Every flash flood warning in 1996

Sources

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; radar from the NEXRAD Level II archive.