Alert archive / New Jersey / Flash Flood Warnings in 2015

Flash Flood Warning 37, NWS Philadelphia/Mount Holly

July 15, 2015Morris County, Sussex County, Warren County, New Jersey; Monroe County, Northampton County, Pennsylvania

NWS Philadelphia/Mount Holly issued this flash flood warning at Jul 15, 2015, 7:22 AM EDT for Morris County, Sussex County, Warren County, New Jersey; Monroe County, Northampton County, Pennsylvania. It was in force for 4 hr. 3 reports 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
Jul 15, 2015, 7:22 AM EDT (11:22 UTC)
Expired
Jul 15, 2015, 11:15 AM EDT
In force
4 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
None

Counties Morris County, NJ, Sussex County, NJ, Warren County, NJ, Monroe County, PA, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 121 km from the middle of the area, began a volume at 11:21 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

TimeReportWhereRemark
Jul 15, 7:45 AM EDTFLOODPlainfield Twp, PASULLIVAN TRAIL AND BANGOR ROAD STILL CLOSED 930AM
Jul 15, 8:56 AM EDTFLOODWind Gap, PAVEHICLE STUCK IN CREEK.
Jul 15, 10:00 AM EDTHEAVY RAIN 4.69Plainfield Twp, PA24 HOUR RAINFALL TOTAL FROM 10AM ON 7/14 TO 10AM ON 7/15. SOME OF THIS RAIN WAS DUE TO THUNDERSTORMS ON 7/14... WITH THE REST OF THE RAIN FALLING DURING THE MORNING OF 7/15.

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 00:00Z, 11.4 hours before the alert went out and 179 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 2015-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 623 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 00:00Z on 2015-07-15The 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
623 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
582 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
66 m²/s²
0-3 km storm-relative helicity
104 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.

754 
WGUS51 KPHI 151122
FFWPHI
NJC027-037-041-PAC089-095-151515-
/O.NEW.KPHI.FF.W.0037.150715T1122Z-150715T1515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
722 AM EDT WED JUL 15 2015

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ  HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN WARREN COUNTY IN NORTHWESTERN NEW JERSEY...
  WEST CENTRAL MORRIS COUNTY IN NORTHERN NEW JERSEY...
  SOUTHWESTERN SUSSEX COUNTY IN NORTHWESTERN NEW JERSEY...
  NORTHEASTERN NORTHAMPTON COUNTY IN EASTERN PENNSYLVANIA...
  SOUTH CENTRAL MONROE COUNTY IN NORTHEASTERN PENNSYLVANIA...

* UNTIL 1115 AM EDT
    
* AT 720 AM EDT...DOPPLER RADAR INDICATED HEAVY SHOWERS AND  
  THUNDERSTORMS PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. POCKETS 
  OF FLASH FLOODING ARE EXPECTED TO BEGIN SHORTLY, ESPECIALLY NEAR 
  WIND GAP AND BELFAST. 


* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  NEWTON...HOPATCONG...BLAIRSTOWN...NAZARETH...BANGOR...PEN ARGYL...
  WIND GAP...BELVIDERE...HOPE...BELFAST...EAST BANGOR...DELAWARE
  WATER GAP...ANDOVER...GREENDELL...COLUMBIA...GREAT
  MEADOWS-VIENNA...ALLAMUCHY-PANTHER VALLEY...SAYLORSBURG...ROSETO
  AND STOCKERTOWN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

STAY AWAY OR BE SWEPT AWAY. RIVER BANKS AND CULVERTS CAN BECOME
UNSTABLE AND UNSAFE.

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 4106 7479 4095 7463 4073 7533 4090 7540

$$

DRAG
3 follow-up statements
487 
WGUS71 KPHI 151216
FFSPHI

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
816 AM EDT WED JUL 15 2015

NJC027-037-041-PAC089-095-151515-
/O.CON.KPHI.FF.W.0037.000000T0000Z-150715T1515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WARREN NJ-MORRIS NJ-SUSSEX NJ-NORTHAMPTON PA-MONROE PA-
816 AM EDT WED JUL 15 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1115 AM EDT FOR
NORTHERN WARREN...WEST CENTRAL MORRIS...SOUTHWESTERN SUSSEX...
NORTHEASTERN NORTHAMPTON AND SOUTH CENTRAL MONROE COUNTIES...

AT 809 AM EDT...DOPPLER RADAR INDICATED THE HEAVIEST RAINS HAVE OCCURRED.  
CREEKS AND SMALL STREAMS SHOULD BE RESPONDING WITH RAPID RISES. 

STEADY LIGHT TO MODERATE RAIN WILL CONTINUE THROUGH MID MORNING WITH SPOTTY
HEAVY RAINFALL RATES.  

RADAR INDICATES THE HEAVIEST RAIN SO FAR HAS BEEN NEAR WIND GAP AND BELFAST 
OF NORTHEAST PENNSYLVANIA, AROUND 3 INCHES. ANOTHER AREA OF HEAVY RAIN WAS 
CENTERED NEAR GREENDELL OF SUSSEX COUNTY IN NORTHWEST NEW JERSEY, ABOUT 1.7 
INCHES. 

ISOLATED POCKETS OF FLASH FLOODING WOULD ALREADY HAVE OCCURRED, ESPECIALLY IN 
NORTHAMPTON COUNTY. 

ANY POOR DRAINAGE STREET FLOODING SHOULD NOW RECEDE. 

SOME LOCATIONS THAT MAY EXPERIENCE FLOODING INCLUDE...
NEWTON...HOPATCONG...BLAIRSTOWN...NAZARETH...BANGOR...PEN ARGYL...
WIND GAP...BELVIDERE...HOPE...BELFAST...EAST BANGOR...DELAWARE WATER
GAP...ANDOVER...GREENDELL...COLUMBIA...GREAT MEADOWS-VIENNA...
ALLAMUCHY-PANTHER VALLEY...SAYLORSBURG...ROSETO AND STOCKERTOWN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.

&&

LAT...LON 4106 7479 4095 7463 4073 7533 4090 7540

$$

DRAG
126 
WGUS71 KPHI 151341
FFSPHI

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
941 AM EDT WED JUL 15 2015

NJC027-037-041-PAC089-151347-
/O.CAN.KPHI.FF.W.0037.000000T0000Z-150715T1515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WARREN NJ-MORRIS NJ-SUSSEX NJ-MONROE PA-
941 AM EDT WED JUL 15 2015

...THE FLASH FLOOD WARNING FOR NORTHERN WARREN...WEST CENTRAL
MORRIS...SOUTHWESTERN SUSSEX AND SOUTH CENTRAL MONROE COUNTIES IS
CANCELLED...

THE HEAVY RAIN HAS ENDED...AND FLOODING IS NO LONGER EXPECTED TO POSE
A THREAT. PLEASE CONTINUE TO HEED ANY ROAD CLOSURES.

LAT...LON 4091 7517 4077 7520 4073 7533 4083 7537

$$

PAC095-151515-
/O.CON.KPHI.FF.W.0037.000000T0000Z-150715T1515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NORTHAMPTON PA-
941 AM EDT WED JUL 15 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1115 AM EDT FOR
NORTHEASTERN NORTHAMPTON COUNTY...

AT 937 AM EDT...DOPPLER RADAR INDICATED JUST A FEW LEFTOVER SHOWERS IN THE WARNING AREA. 
UP TO THREE INCHES OF RAIN HAVE ALREADY FALLEN BETWEEN WIND GAP AND BELFAST WHERE 
FLASH FLOODING OCCCURRED EARLIER.  AS OF 930 AM,  SULLIVAN TRAIL AND BANGOR ROAD 
REMAINED CLOSED DUE TO HIGH WATER.  

SOME LOCATIONS THAT MAY STILL EXPERIENCE FLOODING INCLUDE...
NAZARETH...BANGOR...PEN ARGYL...WIND GAP...BELFAST...EAST BANGOR...
ROSETO...STOCKERTOWN AND EASTLAWN GARDENS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT ENTER OR CROSS FLOWING WATER OR WATER OF UNKNOWN DEPTH. 

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 4091 7517 4077 7520 4073 7533 4083 7537

$$

DRAG
166 
WGUS71 KPHI 151512
FFSPHI

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1112 AM EDT WED JUL 15 2015

PAC095-151520-
/O.EXP.KPHI.FF.W.0037.000000T0000Z-150715T1515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NORTHAMPTON PA-
1112 AM EDT WED JUL 15 2015

...THE FLASH FLOOD WARNING FOR CENTRAL NORTHAMPTON COUNTY WILL EXPIRE
AT 1115 AM EDT...

THE HEAVY RAIN HAS ENDED ALLOWING THE FLASH FLOOD WARNING TO EXPIRE.

LAT...LON 4091 7517 4077 7520 4073 7533 4083 7537

$$

KRUZDLO

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 15, 5:04 AM EDTSpecial Weather StatementPHIGloucester41 min
Jul 15, 5:36 AM EDTFlash Flood WarningPHIBurlington, Camden, Gloucester, Salem4 hr
Jul 15, 5:59 AM EDTSpecial Weather StatementPHIBurlington, Camden46 min
Jul 15, 6:04 AM EDTSpecial Weather StatementPHISalem56 min
Jul 15, 6:51 AM EDTAreal Flood AdvisoryPHIMorris, Sussex, Warren4 hr
Jul 15, 7:00 AM EDTSpecial Weather StatementPHIAtlantic30 min
Jul 15, 7:10 AM EDTAreal Flood AdvisoryPHICumberland, Gloucester, Salem2 hr
Jul 15, 7:30 AM EDTAreal Flood AdvisoryPHIAtlantic, Burlington, Camden, Cumberland, Gloucester, Salem4 hr
Jul 15, 8:16 AM EDTSpecial Weather StatementPHIAtlantic44 min
Jul 15, 8:29 AM EDTSpecial Weather StatementPHIAtlantic31 min
Jul 15, 8:39 AM EDTSpecial Marine WarningPHI51 min
Jul 15, 8:43 AM EDTFlash Flood WarningPHIAtlantic, Burlington, Ocean4 hr
Jul 15, 8:44 AM EDTSevere Thunderstorm WarningPHIAtlantic, Ocean46 min
Jul 15, 8:50 AM EDTSpecial Marine WarningPHI40 min
Jul 15, 9:12 AM EDTAreal Flood AdvisoryPHIBurlington, Camden, Gloucester, Hunterdon, Mercer, Monmouth and 1 more4 hr
Jul 15, 9:28 AM EDTSpecial Marine WarningPHI62 min
Jul 15, 9:34 AM EDTSpecial Marine WarningPHI26 min
Jul 15, 9:55 AM EDTSpecial Marine WarningPHI65 min
Jul 15, 10:01 AM EDTSpecial Marine WarningPHI59 min
Jul 15, 10:05 AM EDTSpecial Weather StatementPHICumberland25 min
Jul 15, 10:51 AM EDTSpecial Marine WarningPHI54 min
Jul 15, 12:46 PM EDTAreal Flood WarningPHIAtlantic, Burlington, Ocean4 hr
Jul 15, 6:06 PM EDTAreal Flood AdvisoryPHISomerset4 hr
Jul 15, 2:36 AM EDTSpecial Weather StatementPHIBerks, Chester24 min
Jul 15, 3:11 AM EDTSpecial Weather StatementPHIBerks, Chester64 min
Jul 15, 3:39 AM EDTSevere Thunderstorm WarningPHIChester, Delaware, Montgomery, Philadelphia66 min
Jul 15, 3:50 AM EDTAreal Flood AdvisoryPHIBerks, Chester, Delaware, Montgomery4 hr
Jul 15, 4:11 AM EDTSpecial Weather StatementPHIBucks, Lehigh, Montgomery64 min
Jul 15, 4:27 AM EDTFlash Flood WarningPHIBerks, Bucks, Chester, Delaware, Lehigh, Montgomery and 1 more4 hr
Jul 15, 4:48 AM EDTSpecial Weather StatementPHIBucks27 min

Nearby

Flash Flood Warnings in New Jersey, 2015Flash Flood Warnings in Pennsylvania, 2015Every flash flood warning in 2015

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.