Alert archive / Pennsylvania / Areal Flood Warnings in 2016

Areal Flood Warning 7, NWS Philadelphia/Mount Holly

February 25, 2016Warren County, New Jersey; 4 counties in Pennsylvania

NWS Philadelphia/Mount Holly issued this areal flood warning at Feb 25, 2016, 1:55 AM EST for Warren County, New Jersey; 4 counties in Pennsylvania. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Feb 25, 2016, 1:55 AM EST (06:55 UTC)
Expired
Feb 25, 2016, 8:00 AM EST
In force
6 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
None

Counties Warren County, NJ, Bucks County, PA, Lehigh County, PA, Monroe County, PA, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 115 km from the middle of the area, began a volume at 06:56 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, 6.9 hours before the alert went out and 204 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 2016-02-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 38 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 2016-02-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 529 square meters per square second.1939587897Sfc1 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
38 J/kg
Mixed-layer CIN
-81 J/kg
Mixed-layer LCL
479 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
529 m²/s²
0-3 km storm-relative helicity
504 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

Open this sounding in Storm Lab

The text

As transmitted.

519 
WGUS41 KPHI 250655
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
155 AM EST THU FEB 25 2016

NJC041-PAC017-077-089-095-251100-
/O.NEW.KPHI.FA.W.0007.160225T0655Z-160225T1100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WARREN NJ-NORTHAMPTON PA-LEHIGH PA-MONROE PA-BUCKS PA-
155 AM EST THU FEB 25 2016

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ  HAS ISSUED A

* FLOOD WARNING FOR...
  NORTHWESTERN WARREN COUNTY IN NORTHWESTERN NEW JERSEY...
  NORTHAMPTON COUNTY IN EASTERN PENNSYLVANIA...
  LEHIGH COUNTY IN EASTERN PENNSYLVANIA...
  SOUTHEASTERN MONROE COUNTY IN NORTHEASTERN PENNSYLVANIA...
  NORTHWESTERN BUCKS COUNTY IN SOUTHEASTERN PENNSYLVANIA...

* UNTIL 600 AM EST

* AT 152 AM EST...THIS WARNING REPLACES THE FLASH FLOOD WARNING
  WHICH IS EXPIRING AT 200 AM. FLOODING IS STILL ONGOING
  ACROSS PORTIONS OF THE LEHIGH BASIN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO
HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO
FLOODING WHEN WATER BEGINS RISING.

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.

&&

LAT...LON 4096 7492 4036 7538 4048 7559 4056 7570
      4108 7521

$$

KRUZDLO
1 follow-up statement
718 
WGUS41 KPHI 251031
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
531 AM EST THU FEB 25 2016

NJC041-PAC017-077-089-095-251300-
/O.EXT.KPHI.FA.W.0007.000000T0000Z-160225T1300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WARREN NJ-NORTHAMPTON PA-LEHIGH PA-MONROE PA-BUCKS PA-
531 AM EST THU FEB 25 2016

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ  HAS EXTENDED THE

* FLOOD WARNING FOR...
  NORTHWESTERN WARREN COUNTY IN NORTHWESTERN NEW JERSEY...
  NORTHAMPTON COUNTY IN EASTERN PENNSYLVANIA...
  LEHIGH COUNTY IN EASTERN PENNSYLVANIA...
  SOUTHEASTERN MONROE COUNTY IN NORTHEASTERN PENNSYLVANIA...
  NORTHWESTERN BUCKS COUNTY IN SOUTHEASTERN PENNSYLVANIA...

* UNTIL 800 AM EST

* AT 529 AM EST...SEVERAL CREEKS AND STREAMS ACROSS THE LEHIGH
  VALLEY AND NORTHWEST NEW JERSEY CONTINUE TO HOOVER AROUND OR
  EXCEED FLOOD STAGE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

LAT...LON 4096 7492 4036 7538 4048 7559 4056 7570
      4108 7521

$$

KRUZDLO

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 24, 7:10 PM ESTFlash Flood WarningPHIMercer, Middlesex, Monmouth, Somerset3 hr
Feb 24, 8:42 PM ESTAreal Flood AdvisoryPHIHunterdon, Mercer, Morris, Sussex, Warren4 hr
Feb 24, 8:47 PM ESTSevere Thunderstorm WarningPHIGloucester, Salem43 min
Feb 24, 8:48 PM ESTAreal Flood AdvisoryPHICumberland, Gloucester, Salem4 hr
Feb 24, 9:02 PM ESTSpecial Marine WarningPHI58 min
Feb 24, 9:18 PM ESTAreal Flood AdvisoryPHIBurlington, Hunterdon, Mercer, Middlesex, Monmouth, Morris and 4 more4 hr
Feb 24, 9:24 PM ESTAreal Flood AdvisoryPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 3 more4 hr
Feb 24, 9:40 PM ESTSevere Thunderstorm WarningPHIBurlington, Camden, Gloucester35 min
Feb 24, 9:55 PM ESTFlash Flood WarningPHIWarren4 hr
Feb 24, 10:05 PM ESTFlash Flood WarningPHIBurlington, Camden, Cumberland, Gloucester, Salem4 hr
Feb 24, 10:06 PM ESTSpecial Weather StatementPHISussex39 min
Feb 24, 10:19 PM ESTSpecial Marine WarningPHI56 min
Feb 24, 10:26 PM ESTSpecial Weather StatementPHISussex34 min
Feb 24, 10:32 PM ESTFlash Flood WarningPHIBurlington, Hunterdon, Mercer, Middlesex, Morris, Somerset and 1 more4 hr
Feb 24, 10:36 PM ESTSpecial Weather StatementPHIAtlantic, Ocean39 min
Feb 24, 10:49 PM ESTAreal Flood AdvisoryPHIAtlantic, Burlington, Cape May, Monmouth, Ocean4 hr
Feb 24, 10:51 PM ESTSpecial Weather StatementPHIMercer, Middlesex, Morris, Somerset54 min
Feb 24, 11:03 PM ESTSevere Thunderstorm WarningPHIBurlington, Hunterdon, Mercer, Middlesex, Monmouth, Morris and 1 more42 min
Feb 24, 11:11 PM ESTSpecial Weather StatementPHIMonmouth, Ocean64 min
Feb 24, 11:22 PM ESTSpecial Marine WarningPHI53 min
Feb 24, 11:25 PM ESTSevere Thunderstorm WarningPHIBurlington, Monmouth, Ocean15 min
Feb 25, 12:04 AM ESTSpecial Weather StatementPHIAtlantic, Monmouth, Ocean56 min
Feb 25, 2:04 AM ESTAreal Flood WarningPHIBurlington, Camden, Gloucester4 hr
Feb 25, 2:22 AM ESTAreal Flood WarningPHIBurlington, Hunterdon, Mercer, Middlesex, Morris, Somerset and 1 more8 hr
Feb 25, 2:26 AM ESTRiver Flood WarningPHISomerset33 hr
Feb 25, 2:31 AM ESTRiver Flood WarningPHIMorris, Passaic31 hr
Feb 25, 7:51 AM ESTAreal Flood WarningPHIWarren6 hr
Feb 25, 10:02 AM ESTRiver Flood WarningPHIMorris25 hr
Feb 25, 10:13 AM ESTAreal Flood WarningPHISomerset6 hr
Feb 25, 12:37 PM ESTAreal Flood WarningPHISussex, Warren8 hr
Feb 25, 3:28 PM ESTAreal Flood WarningPHISomerset14 hr
Feb 24, 7:12 PM ESTSevere Thunderstorm WarningPHIChester, Delaware33 min
Feb 24, 7:21 PM ESTAreal Flood AdvisoryPHIChester4 hr
Feb 24, 7:35 PM ESTAreal Flood AdvisoryPHICarbon, Monroe6 hr
Feb 24, 7:39 PM ESTSevere Thunderstorm WarningPHIBerks, Chester36 min
Feb 24, 8:13 PM ESTSpecial Weather StatementPHIChester, Montgomery62 min
Feb 24, 8:23 PM ESTSpecial Weather StatementPHILehigh, Monroe, Northampton67 min
Feb 24, 9:44 PM ESTAreal Flood WarningPHIBerks, Chester, Montgomery10 hr
Feb 24, 10:11 PM ESTRiver Flood WarningPHIChester20 hr
Feb 25, 12:19 AM ESTRiver Flood WarningPHIMontgomery14 hr
Feb 25, 12:28 AM ESTRiver Flood WarningPHIChester, Delaware18 hr
Feb 25, 12:37 AM ESTRiver Flood WarningPHIChester, Montgomery, Philadelphia28 hr
Feb 25, 2:07 AM ESTRiver Flood WarningPHIBerks, Montgomery8 hr
Feb 25, 7:41 AM ESTAreal Flood WarningPHIBerks, Chester, Montgomery6 hr

Nearby

Areal Flood Warnings in Pennsylvania, 2016Areal Flood Warnings in New Jersey, 2016Every areal flood warning in 2016

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.