Alert archive / New Jersey / Flood Watches in 2007

Flood Watch 1, NWS Philadelphia/Mount Holly

January 7, 20074 states

NWS Philadelphia/Mount Holly issued this flood watch at Jan 7, 2007, 4:15 AM EST for 4 states. It took effect at Jan 7, 2007, 3:25 PM EST. It was in force for 19 hr.

The area

The counties it named.

The facts

Issued
Jan 7, 2007, 4:15 AM EST (09:15 UTC)
In effect from
Jan 7, 2007, 3:25 PM EST
Expired
Jan 8, 2007, 9:59 AM EST
In force
19 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 09:19 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, 9.3 hours before the alert went out and 198 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 2007-01-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2007-01-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -10 square meters per square second.1939587897117136Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1596 m above ground
0-6 km bulk shear
90 kt
0-1 km storm-relative helicity
-10 m²/s²
0-3 km storm-relative helicity
100 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 070915
FFAPHI

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
415 AM EST SUN JAN 7 2007

DEZ001-MDZ008-NJZ010-015-017>019-PAZ067>071-072200-
/O.NEW.KPHI.FA.A.0001.070108T0500Z-070108T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NEW CASTLE-CECIL-SOMERSET-MERCER-GLOUCESTER-CAMDEN-
NORTHWESTERN BURLINGTON-CHESTER-MONTGOMERY-BUCKS-DELAWARE-
PHILADELPHIA-
INCLUDING THE CITIES OF...WILMINGTON...ELKTON...SOMERVILLE...
TRENTON...GLASSBORO...CAMDEN...CHERRY HILL...MOORESTOWN...
MOUNT HOLLY...WEST CHESTER...NORRISTOWN...DOYLESTOWN...MEDIA
415 AM EST SUN JAN 7 2007

...FLOOD WATCH IN EFFECT FROM LATE TONIGHT THROUGH MONDAY
MORNING...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A

* FLOOD WATCH FOR PORTIONS OF NORTHERN DELAWARE...NORTHEAST 
  MARYLAND...NEW JERSEY AND SOUTHEAST PENNSYLVANIA...INCLUDING 
  THE FOLLOWING AREAS...IN NORTHERN DELAWARE...NEW CASTLE. IN 
  NORTHEAST MARYLAND...CECIL. IN NEW JERSEY...CAMDEN...
  GLOUCESTER...MERCER...NORTHWESTERN BURLINGTON AND SOMERSET. IN 
  SOUTHEAST PENNSYLVANIA...BUCKS...CHESTER...DELAWARE...
  MONTGOMERY AND PHILADELPHIA.

* FROM LATE TONIGHT THROUGH MONDAY MORNING

* LOW PRESSURE DEVELOPING OVER THE WESTERN GULF OF MEXICO EARLY
  THIS MORNING WILL LIFT INTO THE OHIO RIVER VALLEY THIS
  EVENING...THEN CONTINUE NORTHEAST INTO SOUTHEASTERN CANADA BY
  MIDDAY MONDAY. THE POTENT SYSTEM WILL PULL A GOOD DEAL OF
  MOISTURE FROM THE GULF AND DEPOSIT IT IN THE FORM OF
  RAIN...HEAVY AT TIMES...MAINLY FROM SUNDAY NIGHT INTO MONDAY
  MORNING. WINDS ALSO ARE EXPECTED TO INCREASE AS THE SYSTEM
  APPROACHES AND THEN LIFTS NORTH OF THE AREA.

* OVER SOUTHEASTERN PENNSYLVANIA...MUCH OF CENTRAL AND
  SOUTHWESTERN NEW JERSEY...NORTHERN DELAWARE AND ADJACENT
  PORTIONS OF THE MARYLAND EASTERN SHORE...RAINFALL AMOUNTS OF ONE
  AND A HALF TO TWO INCHES WITH ISOLATED GREATER AMOUNTS ARE
  POSSIBLE. THESE AMOUNTS COULD RESULT IN FLOODING OF STREAMS...
  CREEKS AND POOR DRAINAGE AREAS.

* A FLOOD WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR HEAVY RAIN
  ACROSS THE WATCH AREA...WHICH MAY LEAD TO FLOODING ALONG
  STREAMS... CREEKS AND POOR DRAINAGE AREAS. 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.

$$

MPD
3 follow-up statements
000 
WGUS61 KPHI 072025
FFAPHI

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
325 PM EST SUN JAN 7 2007

NJZ001-007>009-012-013-016-PAZ054-055-060>062-080930-
/O.EXA.KPHI.FA.A.0001.070108T0500Z-070108T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SUSSEX-WARREN-MORRIS-HUNTERDON-MIDDLESEX-WESTERN MONMOUTH-SALEM-
CARBON-MONROE-BERKS-LEHIGH-NORTHAMPTON-
INCLUDING THE CITIES OF...NEWTON...WASHINGTON...MORRISTOWN...
FLEMINGTON...NEW BRUNSWICK...FREEHOLD...PENNSVILLE...JIM THORPE...
STROUDSBURG...READING...ALLENTOWN...BETHLEHEM...EASTON
325 PM EST SUN JAN 7 2007

...FLOOD WATCH IN EFFECT FROM MIDNIGHT EST TONIGHT THROUGH MONDAY
MORNING...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS EXPANDED THE

* FLOOD WATCH TO INCLUDE PORTIONS OF NEW JERSEY AND 
  PENNSYLVANIA...INCLUDING THE FOLLOWING AREAS...IN NEW JERSEY...
  HUNTERDON...MIDDLESEX...MORRIS...SALEM...SUSSEX...WARREN AND 
  WESTERN MONMOUTH. IN PENNSYLVANIA...BERKS...CARBON...LEHIGH...
  MONROE AND NORTHAMPTON.

* FROM MIDNIGHT EST TONIGHT THROUGH MONDAY MORNING

* LOW PRESSURE DEVELOPING OVER THE GULF COAST STATES THIS
  AFTERNOON WILL LIFT INTO THE OHIO RIVER VALLEY THIS
  EVENING...THEN CONTINUE NORTHEAST INTO SOUTHEASTERN CANADA BY
  MIDDAY MONDAY. THE POTENT SYSTEM WILL PULL A GOOD DEAL OF
  MOISTURE FROM THE GULF AND DEPOSIT IT IN THE FORM OF
  RAIN...HEAVY AT TIMES...MAINLY FROM TONIGHT INTO MONDAY MORNING.
  WINDS ARE EXPECTED TO INCREASE TONIGHT SWITCHING FROM THE EAST
  THROUGH SOUTH BY MORNING WITH GUSTS TO 30 MPH AT TIMES...AND
  THEN WESTERLY MONDAY GUSTING TO NEAR 40 MPH DURING THE DAY.
 
* OVER EASTERN PENNSYLVANIA...A GOOD PART OF NEW JERSEY EXCEPT
  THE EXTREME NORTHEAST AND SOUTHEAST INCLUDING THE IMMEDIATE
  COASTAL AREAS...NORTHERN DELAWARE AND ADJACENT PORTIONS OF THE
  MARYLAND EASTERN SHORE...RAINFALL AMOUNTS OF ONE AND A HALF TO
  TWO INCHES WITH ISOLATED GREATER AMOUNTS ARE POSSIBLE. THESE
  AMOUNTS COULD RESULT IN FLOODING OF STREAMS...CREEKS AND POOR
  DRAINAGE AREAS.


A 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.

$$

DEZ001-MDZ008-NJZ010-015-017>019-PAZ067>071-080930-
/O.CON.KPHI.FA.A.0001.070108T0500Z-070108T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NEW CASTLE-CECIL-SOMERSET-MERCER-GLOUCESTER-CAMDEN-
NORTHWESTERN BURLINGTON-CHESTER-MONTGOMERY-BUCKS-DELAWARE-
PHILADELPHIA-
INCLUDING THE CITIES OF...WILMINGTON...ELKTON...SOMERVILLE...
TRENTON...GLASSBORO...CAMDEN...CHERRY HILL...MOORESTOWN...
MOUNT HOLLY...WEST CHESTER...NORRISTOWN...DOYLESTOWN...MEDIA
325 PM EST SUN JAN 7 2007

...FLOOD WATCH REMAINS IN EFFECT FROM MIDNIGHT EST TONIGHT
THROUGH MONDAY MORNING...

THE FLOOD WATCH CONTINUES FOR

* PORTIONS OF NORTHERN DELAWARE...NORTHEAST MARYLAND...NEW 
  JERSEY AND SOUTHEAST PENNSYLVANIA...INCLUDING THE FOLLOWING 
  AREAS...IN NORTHERN DELAWARE...NEW CASTLE. IN NORTHEAST 
  MARYLAND...CECIL. IN NEW JERSEY...CAMDEN...GLOUCESTER...
  MERCER...NORTHWESTERN BURLINGTON AND SOMERSET. IN SOUTHEAST 
  PENNSYLVANIA...BUCKS...CHESTER...DELAWARE...MONTGOMERY AND 
  PHILADELPHIA.

* FROM MIDNIGHT EST TONIGHT THROUGH MONDAY MORNING

* LOW PRESSURE DEVELOPING OVER THE GULF COAST STATES THIS
  AFTERNOON WILL LIFT INTO THE OHIO RIVER VALLEY THIS
  EVENING...THEN CONTINUE NORTHEAST INTO SOUTHEASTERN CANADA BY
  MIDDAY MONDAY. THE POTENT SYSTEM WILL PULL A GOOD DEAL OF
  MOISTURE FROM THE GULF AND DEPOSIT IT IN THE FORM OF
  RAIN...HEAVY AT TIMES...MAINLY FROM TONIGHT INTO MONDAY MORNING.
  WINDS ARE EXPECTED TO INCREASE TONIGHT SWITCHING FROM THE EAST
  THROUGH SOUTH BY MORNING WITH GUSTS TO 35 MPH AT TIMES...AND
  THEN WESTERLY MONDAY GUSTING TO NEAR 40 MPH DURING THE DAY.

* OVER EASTERN PENNSYLVANIA...A GOOD PART OF NEW JERSEY EXCEPT THE
  EXTREME NORTHEAST AND SOUTHEAST INCLUDING THE IMMEDIATE COASTAL
  AREAS...NORTHERN DELAWARE AND ADJACENT PORTIONS OF THE MARYLAND
  EASTERN SHORE...RAINFALL AMOUNTS OF ONE AND A HALF TO TWO INCHES
  WITH ISOLATED GREATER AMOUNTS ARE POSSIBLE. THESE AMOUNTS COULD
  RESULT IN FLOODING OF STREAMS...CREEKS AND POOR DRAINAGE AREAS.

A 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.

$$

EBERWINE/IOVINO
000 
WGUS61 KPHI 080746
FFAPHI

FLOOD WATCH
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
246 AM EST MON JAN 8 2007

DEZ001-MDZ008-NJZ001-007>010-012-013-015>019-PAZ054-055-060>062-
067>071-081700-
/O.CON.KPHI.FA.A.0001.000000T0000Z-070108T1700Z/
/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
246 AM EST MON JAN 8 2007

...FLOOD WATCH REMAINS IN EFFECT UNTIL NOON EST TODAY...

THE FLOOD WATCH CONTINUES FOR

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

* UNTIL NOON EST TODAY

* LOW PRESSURE LOCATED NEAR THE GREAT LAKES REGION WILL CONTINUE
  TO LIFT NORTHEASTWARD INTO SOUTHEASTERN CANADA TODAY. THIS
  SYSTEM WILL DRAG A COLD FRONT THROUGH THE REGION BY MIDDAY
  TODAY. RAIN...HEAVY AT TIMES...WILL CONTINUE TO FALL THIS
  MORNING. WINDS ARE EXPECTED TO INCREASE TODAY...GUSTING TO NEAR
  30 TO 40 MPH DURING THIS AFTERNOON.

* OVER EASTERN PENNSYLVANIA...A GOOD PART OF NEW JERSEY EXCEPT THE
  EXTREME NORTHEAST AND SOUTHEAST INCLUDING THE IMMEDIATE COASTAL
  AREAS...NORTHERN DELAWARE AND ADJACENT PORTIONS OF THE MARYLAND
  EASTERN SHORE...STORM TOTAL RAINFALL AMOUNTS OF ONE TO TWO
  INCHES WILL BE COMMON...WITH ISOLATED GREATER AMOUNTS. THESE
  AMOUNTS COULD RESULT IN FLOODING OF STREAMS...CREEKS AND POOR
  DRAINAGE AREAS.

A 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.

$$

ROBERTSON
000 
WGUS61 KPHI 081459
FFAPHI

FLOOD WATCH
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
959 AM EST MON JAN 8 2007

DEZ001-MDZ008-NJZ001-007>010-012-013-015>019-PAZ054-055-060>062-
067>071-081600-
/O.CAN.KPHI.FA.A.0001.000000T0000Z-070108T1700Z/
/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
959 AM EST MON JAN 8 2007

...FLOOD WATCH IS CANCELLED...

THE FLOOD WATCH FOR PORTIONS OF NORTHERN DELAWARE...NORTHEAST
MARYLAND...NEW JERSEY AND PENNSYLVANIA HAS BEEN CANCELED. THE
HEAVIEST RAIN HAS MOVED EAST OF THE REGION. HOWEVER, THERE COULD
BE SOME LINGERING SHOWERS THROUGH EARLY AFTERNOON. RAIN IS
EXPECTED TO TAPER OFF FROM WEST TO EAST. 

$$

NIERENBERG

Nearby

Flood Watches in New Jersey, 2007Flood Watches in Pennsylvania, 2007Flood Watches in Maryland, 2007Every flood watch in 2007

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.