Alert archive / Pennsylvania / Flash Flood Warnings in 2008

Flash Flood Warning 11, NWS Philadelphia/Mount Holly

June 14, 2008Carbon County, Monroe County, Pennsylvania

NWS Philadelphia/Mount Holly issued this flash flood warning at Jun 14, 2008, 6:48 PM EDT for Carbon County, Monroe County, Pennsylvania. It was in force for 3 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 14, 2008, 6:48 PM EDT (22:48 UTC)
Expired: Jun 14, 2008, 9:53 PM EDT
In force: 3 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Flood severity: None

Counties Carbon County, PA, Monroe County, PA

The radar

The Philadelphia radar (KDIX), 132 km from the middle of the area, began a volume at 22:47 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.

What was reported inside it

Time	Report	Where	Remark
Jun 14, 7:30 PM EDT	FLASH FLOOD	2 Ne Saylorsburg, PA	FLOODING ALONG U.S. ROUTE 209 IN HAMILTON TOWNSHIP. ALSO 3 INCH WITHIN ONE HOUR DOPPLER RADAR ESTIMATES IN POLK TOWNSHIP.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 10.8 hours before the alert went out and 201 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 29 J/kg
Mixed-layer CIN: -177 J/kg
Mixed-layer LCL: 1159 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 42 m²/s²
0-3 km storm-relative helicity: 72 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 142250
FFWPHI
PAC025-089-150245-
/O.NEW.KPHI.FF.W.0011.080614T2248Z-080615T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
648 PM EDT SAT JUN 14 2008

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN CARBON COUNTY IN NORTHEAST PENNSYLVANIA...
  SOUTHERN MONROE COUNTY IN NORTHEAST PENNSYLVANIA...

* UNTIL 1045 PM EDT

* AT 647 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
  MORE THUNDERSTORMS WITH HEAVY RAIN MOVING ALONG THE SOUTHERN   
  TIER OF CARBON AND MONROE COUNTIES. THE HEAVIEST RAIN SO 
  FAR HAS FALLEN OVER THE POHOPOCO CREEK BASIN AND AN ADDITIONAL
  INCH OR TWO OF RAIN COULD FALL. 

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO GILBERT...
  PENN FOREST RESERVOIR...JONAS...ECHO LAKE...STORMVILLE...REEDERS...
  EAST STROUDSBURG AND BRODHEADSVILLE

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. MOVE TO HIGHER GROUND. ROADWAY FLOODING WAS BEGINNING ON
U S ROUTE 209. 

FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...
DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM...
EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER
GROUND.

LAT...LON 4102 7505 4101 7511 4098 7514 4096 7514
      4092 7524 4086 7530 4083 7541 4077 7571
      4095 7571 4108 7497
TIME...MOT...LOC 2248Z 180DEG 0KT 4092 7547

$$

TFG

1 follow-up statement

000 
WGUS71 KPHI 150153
FFSPHI

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
953 PM EDT SAT JUN 14 2008

PAC025-089-150203-
/O.CAN.KPHI.FF.W.0011.000000T0000Z-080615T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CARBON PA-MONROE PA-
953 PM EDT SAT JUN 14 2008

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR SOUTHERN MONROE AND
SOUTHEASTERN CARBON COUNTIES...

ALL REPORTED FLOODING HAS ENDED ACROSS THE REGION. NO ADDITIONAL 
HEAVY RAIN IS EXPECTED.

LAT...LON 4102 7505 4101 7511 4098 7514 4096 7514
      4092 7524 4086 7530 4083 7541 4077 7571
      4095 7571 4108 7497
TIME...MOT...LOC 0153Z 180DEG 0KT 4092 7547

$$

TFG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 14, 2:23 PM EDT	Flash Flood Warning	PHI	Monroe	3 hr
Jun 14, 3:02 PM EDT	Severe Thunderstorm Warning	PHI	Monroe	58 min
Jun 14, 4:26 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Monroe, Northampton	64 min
Jun 14, 4:49 PM EDT	Flash Flood Warning	PHI	Carbon	5 hr
Jun 14, 5:07 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Monroe	53 min
Jun 14, 5:18 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Monroe	57 min
Jun 14, 6:15 PM EDT	Severe Thunderstorm Warning	PHI	Chester	75 min
Jun 14, 6:28 PM EDT	Flash Flood Warning	PHI	Chester	60 min
Jun 14, 7:05 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester, Montgomery	70 min
Jun 14, 7:42 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Chester, Montgomery	63 min
Jun 14, 7:56 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Delaware, Philadelphia	79 min

Nearby

Flash Flood Warnings in Pennsylvania, 2008 Every flash flood warning in 2008

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.