Alert archive / Pennsylvania / Flash Flood Warnings in 2008

Flash Flood Warning 9, NWS Philadelphia/Mount Holly

June 14, 2008Carbon County, Pennsylvania

NWS Philadelphia/Mount Holly issued this flash flood warning at Jun 14, 2008, 4:49 PM EDT for Carbon County, Pennsylvania. It was in force for 5 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, 4:49 PM EDT (20:49 UTC)
Expired: Jun 14, 2008, 9:52 PM EDT
In force: 5 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Flood severity: None

County Carbon County, PA

The radar

The Binghamton radar (KBGM), 135 km from the middle of the area, began a volume at 20:50 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, 5:55 PM EDT	FLOOD	Christmans, PA	ROADWAY FLOODING IN KIDDER TOWNSHIP AND PENN FOREST 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, 8.8 hours before the alert went out and 230 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 142051
FFWPHI
PAC025-150045-
/O.NEW.KPHI.FF.W.0009.080614T2049Z-080615T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN CARBON COUNTY IN NORTHEAST PENNSYLVANIA...

* UNTIL 845 PM EDT

* AT 445 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
  THUNDERSTORMS WITH TORRENTIAL DOWNPOURS HEADING TOWARD 
  EASTERN CARBON COUNTY. THIS AREA ALREADY HAS RECEIVED AROUND
  TWO INCHES OF RAIN WITH AN ADDITIONAL ONE TO TWO INCHES 
  LIKELY. THE SWAMP RUN DRAINAGE BASIN IS MOST SUSCEPTIBLE TO
  FLASH FLOODING.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LAKE
  HARMONY

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

FLOODING IS OCCURRING OR IS IMMINENT. IT IS IMPORTANT TO KNOW WHERE
YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME
KILLERS IN HEAVY RAINS. CAMPERS AND HIKERS SHOULD AVOID STREAMS OR
CREEKS.

LAT...LON 4110 7561 4099 7551 4097 7552 4097 7553
      4095 7557 4094 7557 4094 7568 4110 7570
      4111 7564
TIME...MOT...LOC 2049Z 180DEG 0KT 4101 7562

$$

TFG

2 follow-up statements

000 
WGUS51 KPHI 150044
FFWPHI
PAC025-150245-
/O.EXT.KPHI.FF.W.0009.000000T0000Z-080615T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN CARBON COUNTY IN NORTHEAST PENNSYLVANIA...

* UNTIL 1045 PM EDT

* AT 841 PM...CARBON COUNTY EMERGENCY MANAGEMENT IS STILL REPORTING
  ONGOING FLOODING IN THE REGION. DOPPLER RADAR ESTIMATED ABOUT FIVE
  INCHES OF RAIN FELL IN THE AREA EARLIER TODAY. NO ADDITIONAL HEAVY
  RAIN IS EXPECTED. 

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  ALBRIGHTSVILLE AND LAKE HARMONY

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CONTINUE TO CAUSE FLOODING 
OF SMALL CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND 
ALONG THE BANKS OF CREEKS AND STREAMS.

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.

FLOODING IS OCCURRING. IT IS IMPORTANT TO KNOW WHERE YOU ARE 
RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME KILLERS IN 
HEAVY RAINS. CAMPERS AND HIKERS SHOULD AVOID STREAMS OR CREEKS.

LAT...LON 4110 7561 4099 7551 4097 7552 4097 7553
      4095 7557 4094 7557 4094 7568 4110 7570
      4111 7564
TIME...MOT...LOC 0043Z 180DEG 0KT 4101 7562

$$
 
TFG

000 
WGUS71 KPHI 150152
FFSPHI

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

PAC025-150202-
/O.CAN.KPHI.FF.W.0009.000000T0000Z-080615T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CARBON PA-
952 PM EDT SAT JUN 14 2008

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR NORTHEASTERN CARBON
COUNTY...

FLOODING HAS CEASED ACROSS THE REGION.

LAT...LON 4110 7561 4099 7551 4097 7552 4097 7553
      4095 7557 4094 7557 4094 7568 4110 7570
      4111 7564
TIME...MOT...LOC 0152Z 180DEG 0KT 4101 7562

$$
 
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, 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, 6:48 PM EDT	Flash Flood Warning	PHI	Carbon, Monroe	3 hr
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.