Alert archive / Pennsylvania / Flash Flood Warnings in 2003

Flash Flood Warning 41, NWS Philadelphia/Mount Holly

August 16, 2003Monroe County, Pennsylvania

NWS Philadelphia/Mount Holly issued this flash flood warning at Aug 16, 2003, 5:10 PM EDT for Monroe County, Pennsylvania. It was in force for 2 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
Aug 16, 2003, 5:10 PM EDT (21:10 UTC)
Expired
Aug 16, 2003, 7:15 PM EDT
In force
2 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Whole counties

County Monroe County, PA

The radar

The Binghamton radar (KBGM), 138 km from the middle of the area, began a volume at 21:11 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 12:00Z, 9.2 hours before the alert went out and 209 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 12:00Z on 2003-08-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 160 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2003-08-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 66 square meters per square second.193958Sfc1 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
160 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
1448 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
66 m²/s²
0-3 km storm-relative helicity
77 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 
WGUS51 KPHI 162119
FFWPHI
PAC089-162315-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
510 PM EDT SAT AUG 16 2003

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTH CENTRAL MONROE COUNTY IN NORTHEAST PENNSYLVANIA

* UNTIL 715 PM EDT.

* AT 508 PM EDT...SKYWARN WEATHER SPOTTERS REPORTED WIDESPREAD FLASH 
FLOODING CONTINUING FROM EARLIER HEAVY RAINFALL.  DOPPLER RADAR 
ESTIMATES THAT UP TO EIGHT INCHES OF RAIN HAS FALLEN IN THE WARNING 
AREA. WIDESPREAD POWER OUTAGES ARE ALSO REPORTED.  THE HEAVY 
RAINFALL HAS ENDED IN THIS AREA.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT DRIVE
YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER
DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES
CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER
GROUND.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF CREEKS
AND STREAMS...ROADS AND ROADSIDE CULVERTS. THE HEAVY RAINS WILL ALSO
TRIGGER ROCK AND MUDSLIDES IN STEEP TERRAIN.

FOR THE LATEST STORM INFORMATION...PLEASE TUNE TO NOAA WEATHER
RADIO...YOUR LOCAL RADIO OR TELEVISION STATION...OR YOUR CABLE
TELEVISION OUTLET.

$$

LAT...LON 4105 7532 4090 7527 4083 7546 4097 7550

SZATKOWSKI
1 follow-up statement
000 
WGUS71 KPHI 162148
FFSPHI
PAC089-162315-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
547 PM EDT SAT AUG 16 2003

..A FLASH FLOOD WARNING CONTINUES FOR MONROE COUNTY IN NORTHEAST 
PENNSYLVANIA...

NATIONAL WEATHER SERVICE SPOTTERS REPORT MULTIPLE STREAMS ARE 
OVERFLOWING IN THE SOUTHERN PORTION OF MONROE COUNTY. POWER HAS ALSO 
BEEN DISRUPTED AND BASEMENTS HAVE BEEN FLOODED. 

SPECIFICALLY...BURGER HOLLOW ROAD NEAR HIGHWAY 209 IS IMPASSABLE. 
ROUTE 115 IN EFFORT NEAR HIGHWAY 209 IS ALSO CLOSED.

THE THUNDERSTORMS THAT WERE RESPONSIBLE FOR THE HEAVY RAIN HAVE 
MOVED TO THE SOUTH AND EAST OF THIS AREA, BUT IT WILL STILL TAKE 
TIME FOR THE FLOOD WATERS TO RECEDE. SPOTTER REPORTS INDICATE THAT 
OVER SEVEN INCHES OF RAIN HAVE FALLEN IN THIS AREA.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE 
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS 
SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.

STAY TUNED TO NOAA WEATHER RADIO OR OTHER MEDIA FOR THE LATEST SEVERE
WEATHER INFORMATION.

REPEATING...A FLASH FLOOD WARNING REMAINS IN EFFECT FOR MONROE 
COUNTY IN NORTHEAST PENNSYLVANIA UNTIL 715 PM.

$$

KRUZDLO

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 16, 1:50 PM EDTSevere Thunderstorm WarningPHIMonroe55 min
Aug 16, 2:00 PM EDTFlash Flood WarningPHIMonroe3 hr
Aug 16, 2:43 PM EDTSevere Thunderstorm WarningPHIMonroe47 min
Aug 16, 3:41 PM EDTSevere Thunderstorm WarningPHICarbon, Monroe49 min

Nearby

Flash Flood Warnings in Pennsylvania, 2003Every flash flood warning in 2003

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.