Alert archive / New Jersey / Flash Flood Watches in 2006

Flash Flood Watch 1, NWS Philadelphia/Mount Holly

June 2, 20064 states

NWS Philadelphia/Mount Holly issued this flash flood watch at Jun 2, 2006, 12:02 PM EDT for 4 states. It took effect at Jun 2, 2006, 2:00 PM EDT. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued
Jun 2, 2006, 12:02 PM EDT (16:02 UTC)
In effect from
Jun 2, 2006, 2:00 PM EDT
Expired
Jun 3, 2006, 5:00 AM EDT
In force
15 hr
Issued by
NWS Philadelphia/Mount Holly
Flood severity
None
All 21 counties

New Castle County, DE, Cecil County, MD, Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Morris County, NJ, Salem County, NJ, Somerset County, NJ, Sussex County, NJ, Warren County, NJ, Berks County, PA, Carbon County, PA, Delaware County, PA, Lehigh County, PA, Monroe County, PA, Northampton County, PA, Philadelphia County, PA

The radar

The Philadelphia radar (KDIX), 72 km from the middle of the area, began a volume at 16:04 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

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 4.0 hours before the alert went out and 128 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, Phillips Aaf/Abe, MD at 12:00Z on 2006-06-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 33 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Phillips Aaf/Abe, MD at 12:00Z on 2006-06-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 35 square meters per square second.1939Sfc1 km3 km6 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
33 J/kg
Mixed-layer CIN
-150 J/kg
Mixed-layer LCL
1013 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
35 m²/s²
0-3 km storm-relative helicity
71 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 
WGUS61 KPHI 021602
FFAPHI

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
ISSUED BY NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1202 PM EDT FRI JUN 2 2006

DEZ001-MDZ008-NJZ001-007>010-012-013-015>019-PAZ054-055-060>062-
067>071-030015-
/O.NEW.KPHI.FF.A.0001.060602T1800Z-060603T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NEW CASTLE-CECIL-SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-
MIDDLESEX-WESTERN MONMOUTH-MERCER-SALEM-GLOUCESTER-CAMDEN-
NORTHWESTERN BURLINGTON-CARBON-MONROE-BERKS-LEHIGH-NORTHAMPTON-
CHESTER-MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA-
INCLUDING THE CITIES OF...WILMINGTON...ELKTON...NEWTON...
WASHINGTON...MORRISTOWN...FLEMINGTON...SOMERVILLE...
NEW BRUNSWICK...FREEHOLD...TRENTON...PENNSVILLE...GLASSBORO...
CAMDEN...CHERRY HILL...MOORESTOWN...MOUNT HOLLY...JIM THORPE...
STROUDSBURG...READING...ALLENTOWN...BETHLEHEM...EASTON...
WEST CHESTER...NORRISTOWN...DOYLESTOWN...MEDIA
1202 PM EDT FRI JUN 2 2006

...FLASH FLOOD WATCH IN EFFECT THROUGH LATE TONIGHT...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A

* FLASH FLOOD WATCH FOR PORTIONS OF NORTHERN DELAWARE...
  NORTHEAST MARYLAND...CENTRAL NEW JERSEY...NORTHERN NEW 
  JERSEY...SOUTHERN NEW JERSEY...EAST CENTRAL PENNSYLVANIA...
  NORTHEAST PENNSYLVANIA AND SOUTHEAST PENNSYLVANIA...INCLUDING 
  THE FOLLOWING AREAS...IN NORTHERN DELAWARE...NEW CASTLE IN 
  NORTHEAST MARYLAND...CECIL IN CENTRAL NEW JERSEY...MERCER AND 
  WESTERN MONMOUTH IN NORTHERN NEW JERSEY...HUNTERDON...
  MIDDLESEX...MORRIS...SOMERSET...SUSSEX AND WARREN IN SOUTHERN 
  NEW JERSEY...CAMDEN...GLOUCESTER...NORTHWESTERN BURLINGTON AND 
  SALEM IN EAST CENTRAL PENNSYLVANIA...BERKS...LEHIGH AND 
  NORTHAMPTON IN NORTHEAST PENNSYLVANIA...CARBON AND MONROE IN 
  SOUTHEAST PENNSYLVANIA...BUCKS...CHESTER...DELAWARE...
  MONTGOMERY AND PHILADELPHIA.

* THROUGH LATE TONIGHT

* A COLD FRONT WILL ENTER THE MID ATLANTIC THIS EVENING AND THEN
  STALL...ALLOWING A DEVELOPING AREA OF LOW PRESSURE TO RIDE ALONG
  THE FRONT. THE AIR ACROSS NEW JERSEY...EASTERN PENNSYLVANIA...
  DELAWARE...AND NORTHEAST MARYLAND IS MOIST AND UNSTABLE. LOCAL
  RAINFALL OF ONE AND A HALF TO TWO INCHES IN AN HOUR OR LESS WILL
  BE POSSIBLE...AND MAY LEAD TO FLOODING OF CREEKS...STREAMS...
  AND OTHER LOW LYING AREAS. NUMEROUS SUCH SHOWERS AND
  THUNDERSTORMS MAY CROSS THE SAME AREA...ENHANCING THE FLOOD
  THREAT.

A FLOOD FLOOD WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR HEAVY
RAIN ACROSS THE WATCH AREA...WHICH MAY LEAD TO FLOODING ALONG
STREAMS AND CREEKS. IF YOU ARE IN THE WATCH AREA...CHECK YOUR
PREPAREDNESS REQUIREMENTS. KEEP INFORMED...AND BE READY FOR
ACTION IF FLOODING IS OBSERVED OR IF A FLOOD WARNING IS ISSUED.

$$

HTS
3 follow-up statements
000 
WGUS61 KPHI 022041
FFAPHI

FLOOD WATCH
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
ISSUED BY NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
441 PM EDT FRI JUN 2 2006

DEZ001-MDZ008-NJZ001-007>010-012-013-015>019-PAZ054-055-060>062-
067>071-030445-
/O.CON.KPHI.FF.A.0001.000000T0000Z-060603T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NEW CASTLE-CECIL-SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-
MIDDLESEX-WESTERN MONMOUTH-MERCER-SALEM-GLOUCESTER-CAMDEN-
NORTHWESTERN BURLINGTON-CARBON-MONROE-BERKS-LEHIGH-NORTHAMPTON-
CHESTER-MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA-
INCLUDING THE CITIES OF...WILMINGTON...ELKTON...NEWTON...
WASHINGTON...MORRISTOWN...FLEMINGTON...SOMERVILLE...
NEW BRUNSWICK...FREEHOLD...TRENTON...PENNSVILLE...GLASSBORO...
CAMDEN...CHERRY HILL...MOORESTOWN...MOUNT HOLLY...JIM THORPE...
STROUDSBURG...READING...ALLENTOWN...BETHLEHEM...EASTON...
WEST CHESTER...NORRISTOWN...DOYLESTOWN...MEDIA
441 PM EDT FRI JUN 2 2006

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH LATE TONIGHT...

THE FLASH FLOOD WATCH CONTINUES FOR

* PORTIONS OF NORTHERN DELAWARE...NORTHEAST MARYLAND...CENTRAL 
  NEW JERSEY...NORTHERN NEW JERSEY...SOUTHERN NEW JERSEY...EAST 
  CENTRAL PENNSYLVANIA...NORTHEAST PENNSYLVANIA AND SOUTHEAST 
  PENNSYLVANIA...INCLUDING THE FOLLOWING AREAS...IN NORTHERN 
  DELAWARE...NEW CASTLE IN NORTHEAST MARYLAND...CECIL IN CENTRAL 
  NEW JERSEY...MERCER AND WESTERN MONMOUTH IN NORTHERN NEW 
  JERSEY...HUNTERDON...MIDDLESEX...MORRIS...SOMERSET...SUSSEX 
  AND WARREN IN SOUTHERN NEW JERSEY...CAMDEN...GLOUCESTER...
  NORTHWESTERN BURLINGTON AND SALEM IN EAST CENTRAL 
  PENNSYLVANIA...BERKS...LEHIGH AND NORTHAMPTON IN NORTHEAST 
  PENNSYLVANIA...CARBON AND MONROE IN SOUTHEAST PENNSYLVANIA...
  BUCKS...CHESTER...DELAWARE...MONTGOMERY AND PHILADELPHIA.

* THROUGH LATE TONIGHT

* A COLD FRONT WILL ENTER THE MID ATLANTIC THIS EVENING AND THEN
  STALL...ALLOWING A DEVELOPING AREA OF LOW PRESSURE TO RIDE ALONG
  THE FRONT. THE AIR ACROSS NEW JERSEY...EASTERN PENNSYLVANIA...
  DELAWARE...AND NORTHEAST MARYLAND IS MOIST AND UNSTABLE.
  SCATTERED THUNDERSTORMS HAVE DEVELOPED ACROSS THE AREA THIS
  AFTERNOON...AND SHOULD BECOME MORE NUMEROUS TONIGHT.
  THUNDERSTORMS THAT DO FORM WILL BE CAPABLE OF HEAVY RAINFALL.
  LOCAL RAINFALL OF ONE AND A HALF TO TWO INCHES IN AN HOUR OR
  LESS WILL BE POSSIBLE...AND MAY LEAD TO FLOODING OF
  CREEKS...STREAMS... AND OTHER LOW LYING AREAS. NUMEROUS SUCH
  SHOWERS AND THUNDERSTORMS MAY CROSS THE SAME AREA...ENHANCING
  THE FLOOD THREAT.

A FLASH FLOOD WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR HEAVY
RAIN ACROSS THE WATCH AREA...WHICH MAY LEAD TO FLOODING ALONG
STREAMS AND CREEKS. IF YOU ARE IN THE WATCH AREA...CHECK YOUR
PREPAREDNESS REQUIREMENTS. KEEP INFORMED...AND BE READY FOR ACTION
IF FLOODING IS OBSERVED OR IF A FLOOD WARNING IS ISSUED.

$$

HTS
000 
WGUS61 KPHI 030137
FFAPHI

FLOOD WATCH
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
ISSUED BY NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
937 PM EDT FRI JUN 2 2006

DEZ001-MDZ008-NJZ001-007>010-012-013-015>019-PAZ054-055-060>062-
067>071-030945-
/O.CON.KPHI.FF.A.0001.000000T0000Z-060603T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NEW CASTLE-CECIL-SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-
MIDDLESEX-WESTERN MONMOUTH-MERCER-SALEM-GLOUCESTER-CAMDEN-
NORTHWESTERN BURLINGTON-CARBON-MONROE-BERKS-LEHIGH-NORTHAMPTON-
CHESTER-MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA-
INCLUDING THE CITIES OF...WILMINGTON...ELKTON...NEWTON...
WASHINGTON...MORRISTOWN...FLEMINGTON...SOMERVILLE...
NEW BRUNSWICK...FREEHOLD...TRENTON...PENNSVILLE...GLASSBORO...
CAMDEN...CHERRY HILL...MOORESTOWN...MOUNT HOLLY...JIM THORPE...
STROUDSBURG...READING...ALLENTOWN...BETHLEHEM...EASTON...
WEST CHESTER...NORRISTOWN...DOYLESTOWN...MEDIA
937 PM EDT FRI JUN 2 2006

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 6 AM EDT SATURDAY...

THE FLASH FLOOD WATCH CONTINUES FOR

* PORTIONS OF NORTHERN DELAWARE...NORTHEAST MARYLAND...CENTRAL 
  NEW JERSEY...NORTHERN NEW JERSEY...SOUTHERN NEW JERSEY...EAST 
  CENTRAL PENNSYLVANIA...NORTHEAST PENNSYLVANIA AND SOUTHEAST 
  PENNSYLVANIA...INCLUDING THE FOLLOWING AREAS...IN NORTHERN 
  DELAWARE...NEW CASTLE IN NORTHEAST MARYLAND...CECIL IN CENTRAL 
  NEW JERSEY...MERCER AND WESTERN MONMOUTH IN NORTHERN NEW 
  JERSEY...HUNTERDON...MIDDLESEX...MORRIS...SOMERSET...SUSSEX 
  AND WARREN IN SOUTHERN NEW JERSEY...CAMDEN...GLOUCESTER...
  NORTHWESTERN BURLINGTON AND SALEM IN EAST CENTRAL 
  PENNSYLVANIA...BERKS...LEHIGH AND NORTHAMPTON IN NORTHEAST 
  PENNSYLVANIA...CARBON AND MONROE IN SOUTHEAST PENNSYLVANIA...
  BUCKS...CHESTER...DELAWARE...MONTGOMERY AND PHILADELPHIA.

* UNTIL 6 AM EDT SATURDAY

* AN AREA OF LOW PRESSURE NEAR WASHINGTON DC WILL TRACK NORTH
  ACROSS NEW JERSEY OVERNIGHT ALONG A STALLED FRONTAL BOUNDARY.
  THE AIR ALONG AND AHEAD OF THE FRONT IS WARM AND UNSTABLE....
  SUPPORTING NUMEROUS SHOWERS AND THUNDERSTORMS. LOCAL RAINFALL
  OF ONE AND A HALF TO TWO INCHES IN AN HOUR OR LESS WILL BE
  POSSIBLE...AND MAY LEAD TO FLOODING OF CREEKS... STREAMS... AND
  OTHER LOW LYING AREAS. NUMEROUS SUCH SHOWERS AND THUNDERSTORMS
  MAY CROSS THE SAME AREA...ENHANCING THE FLOOD THREAT.

A FLASH FLOOD WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR HEAVY
RAIN ACROSS THE WATCH AREA...WHICH MAY LEAD TO FLOODING ALONG
STREAMS AND CREEKS. IF YOU ARE IN THE WATCH AREA...CHECK YOUR
PREPAREDNESS REQUIREMENTS. KEEP INFORMED...AND BE READY FOR
ACTION IF FLOODING IS OBSERVED OR IF A FLOOD WARNING IS ISSUED.

$$

HTS
000 
WGUS61 KPHI 030900
FFAPHI

FLOOD WATCH
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
500 AM EDT SAT JUN 3 2006

DEZ001-MDZ008-NJZ001-007>010-012-013-015>019-PAZ054-055-060>062-
067>071-031000-
/O.CAN.KPHI.FF.A.0001.000000T0000Z-060603T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NEW CASTLE-CECIL-SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-
MIDDLESEX-WESTERN MONMOUTH-MERCER-SALEM-GLOUCESTER-CAMDEN-
NORTHWESTERN BURLINGTON-CARBON-MONROE-BERKS-LEHIGH-NORTHAMPTON-
CHESTER-MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA-
INCLUDING THE CITIES OF...WILMINGTON...ELKTON...NEWTON...
WASHINGTON...MORRISTOWN...FLEMINGTON...SOMERVILLE...
NEW BRUNSWICK...FREEHOLD...TRENTON...PENNSVILLE...GLASSBORO...
CAMDEN...CHERRY HILL...MOORESTOWN...MOUNT HOLLY...JIM THORPE...
STROUDSBURG...READING...ALLENTOWN...BETHLEHEM...EASTON...
WEST CHESTER...NORRISTOWN...DOYLESTOWN...MEDIA
500 AM EDT SAT JUN 3 2006

...FLASH FLOOD WATCH IS CANCELLED...

THE FLASH FLOOD WATCH FOR NORTHERN DELAWARE...NORTHEAST MARYLAND...
EASTERN PENNSYLVANIA...AND PORTIONS OF NEW JERSEY HAS BEEN CANCELED.

THE HEAVY RAIN HAS TAPERED OFF TO SHOWERS AND NO NEW FLOODING IS
EXPECTED. FOR THIS REASON, THE FLASH FLOOD WATCH HAS BEEN CANCELED.

$$

KRUZDLO

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 2, 3:09 PM EDTSevere Thunderstorm WarningPHIChester, Delaware51 min
Jun 1, 8:28 PM EDTSevere Thunderstorm WarningPHIMonmouth47 min
Jun 1, 8:49 PM EDTSpecial Marine WarningPHI116 min
Jun 1, 8:56 PM EDTSevere Thunderstorm WarningPHISalem34 min
Jun 1, 8:59 PM EDTSpecial Marine WarningPHI91 min
Jun 1, 9:08 PM EDTSevere Thunderstorm WarningPHIGloucester52 min
Jun 1, 9:21 PM EDTSevere Thunderstorm WarningPHIBurlington69 min
Jun 1, 9:39 PM EDTSevere Thunderstorm WarningPHICamden66 min
Jun 2, 1:59 PM EDTSpecial Marine WarningPHI91 min
Jun 2, 7:52 PM EDTSevere Thunderstorm WarningPHIBurlington38 min
Jun 1, 8:22 PM EDTSevere Thunderstorm WarningPHINew Castle38 min
Jun 1, 11:41 PM EDTSevere Thunderstorm WarningPHISussex49 min
Jun 2, 3:03 PM EDTSevere Thunderstorm WarningPHISussex27 min
Jun 2, 6:15 PM EDTSevere Thunderstorm WarningPHISussex75 min
Jun 1, 8:10 PM EDTSevere Thunderstorm WarningPHICecil35 min

Nearby

Flash Flood Watches in New Jersey, 2006Flash Flood Watches in Pennsylvania, 2006Flash Flood Watches in Delaware, 2006Every flash flood watch in 2006

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.