Alert archive / New Jersey / Areal Flood Warnings in 2016

Areal Flood Warning 9, NWS Philadelphia/Mount Holly

February 25, 20167 counties in New Jersey; Bucks County, Pennsylvania

NWS Philadelphia/Mount Holly issued this areal flood warning at Feb 25, 2016, 2:22 AM EST for 7 counties in New Jersey; Bucks County, Pennsylvania. It was in force for 8 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, 2:22 AM EST (07:22 UTC)
Expired
Feb 25, 2016, 10:15 AM EST
In force
8 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
None

Counties Burlington County, NJ, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Morris County, NJ, Somerset County, NJ, Sussex County, NJ, Bucks County, PA

The radar

The Philadelphia radar (KDIX), 98 km from the middle of the area, began a volume at 07:22 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, 7.4 hours before the alert went out and 135 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.

790 
WGUS41 KPHI 250722
FLWPHI

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

NJC005-019-021-023-027-035-037-PAC017-251115-
/O.NEW.KPHI.FA.W.0009.160225T0722Z-160225T1115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MERCER NJ-HUNTERDON NJ-SUSSEX NJ-SOMERSET NJ-MORRIS NJ-MIDDLESEX NJ-
BURLINGTON NJ-BUCKS PA-
222 AM EST THU FEB 25 2016

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ  HAS ISSUED A

* FLOOD WARNING FOR...
  MERCER COUNTY IN CENTRAL NEW JERSEY...
  EASTERN HUNTERDON COUNTY IN NORTHWESTERN NEW JERSEY...
  SOUTHEASTERN SUSSEX COUNTY IN NORTHWESTERN NEW JERSEY...
  SOMERSET COUNTY IN NORTHERN NEW JERSEY...
  MORRIS COUNTY IN NORTHERN NEW JERSEY...
  WESTERN MIDDLESEX COUNTY IN NORTHERN NEW JERSEY...
  NORTH CENTRAL BURLINGTON COUNTY IN SOUTHERN NEW JERSEY...
  EAST CENTRAL BUCKS COUNTY IN SOUTHEASTERN PENNSYLVANIA...

* UNTIL 615 AM EST

* AT 216 AM EST...THIS WARNING REPLACES THE FLASH FLOOD WARNING
  ISSUED EARLIER FOR THE SAME AREA. RUNOFF IS CONTINUING TO MAKE ITS
  WAY INTO AREA CREEKS AND STREAMS. A NUMBER OF GAGES INDICATE WATER
  CONTINUES TO RISE. FLOODING WILL CONTINUE ACROSS PORTIONS OF THE
  WARNED AREA THROUGH DAYBREAK. 

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 4113 7445 4109 7450 4104 7450 4105 7445
      4102 7443 4100 7430 4090 7427 4091 7433
      4076 7438 4075 7436 4067 7446 4065 7441
      4060 7446 4060 7432 4007 7467 4029 7513
      4116 7452

$$

KRUZDLO
2 follow-up statements
637 
WGUS81 KPHI 251057
FLSPHI

FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
557 AM EST THU FEB 25 2016

NJC005-019-023-027-037-PAC017-251105-
/O.CAN.KPHI.FA.W.0009.000000T0000Z-160225T1115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HUNTERDON NJ-SUSSEX NJ-MORRIS NJ-MIDDLESEX NJ-BURLINGTON NJ-BUCKS PA-
557 AM EST THU FEB 25 2016

...THE FLOOD WARNING HAS BEEN CANCELLED FOR EASTERN HUNTERDON...
SOUTHEASTERN SUSSEX...MORRIS...WESTERN MIDDLESEX...NORTH CENTRAL
BURLINGTON AND EAST CENTRAL BUCKS COUNTIES...

THE HEAVY RAIN HAS ENDED. THE FLOOD WATERS ARE RECEDING. THE
FLOODING THREAT HAS ENDED. 

LAT...LON 4057 7453 4049 7446 4037 7462 4033 7462
      4029 7453 4014 7462 4019 7470 4016 7472
      4034 7494 4035 7486 4038 7487 4043 7475
      4051 7480 4051 7478 4058 7471 4072 7472
      4076 7456 4070 7451 4065 7452 4065 7441

$$

NJC021-035-251115-
/O.CON.KPHI.FA.W.0009.000000T0000Z-160225T1115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MERCER NJ-SOMERSET NJ-
557 AM EST THU FEB 25 2016

...A FLOOD WARNING REMAINS IN EFFECT UNTIL 615 AM EST FOR MERCER AND
SOMERSET COUNTIES...

AT 555 AM EST...SEVERAL CREEKS AND STREAMS ACROSS MERCER AND
SOMERSET COUNTIES 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 4057 7453 4049 7446 4037 7462 4033 7462
      4029 7453 4014 7462 4019 7470 4016 7472
      4034 7494 4035 7486 4038 7487 4043 7475
      4051 7480 4051 7478 4058 7471 4072 7472
      4076 7456 4070 7451 4065 7452 4065 7441

$$

KRUZDLO
483 
WGUS41 KPHI 251101
FLWPHI

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

NJC021-035-251515-
/O.EXT.KPHI.FA.W.0009.000000T0000Z-160225T1515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MERCER NJ-SOMERSET NJ-
601 AM EST THU FEB 25 2016

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ  HAS EXTENDED THE

* FLOOD WARNING FOR...
  MERCER COUNTY IN CENTRAL NEW JERSEY...
  SOMERSET COUNTY IN NORTHERN NEW JERSEY...

* UNTIL 1015 AM EST

* AT 600 AM EST...SEVERAL CREEKS AND STREAMS ACROSS MERCER AND
  SOMERSET COUNTIES 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 4057 7453 4049 7446 4037 7462 4033 7462
      4029 7453 4014 7462 4019 7470 4016 7472
      4034 7494 4035 7486 4038 7487 4043 7475
      4051 7480 4051 7478 4058 7471 4072 7472
      4076 7456 4070 7451 4065 7452 4065 7441

$$

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, 1:55 AM ESTAreal Flood WarningPHIWarren6 hr
Feb 25, 2:04 AM ESTAreal Flood WarningPHIBurlington, Camden, Gloucester4 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 New Jersey, 2016Areal Flood Warnings in Pennsylvania, 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.