Alert archive / New Jersey / Flood Watches in 2007

Flood Watch 2, NWS Philadelphia/Mount Holly

February 13, 20074 states

NWS Philadelphia/Mount Holly issued this flood watch at Feb 13, 2007, 3:46 PM EST for 4 states. It took effect at Feb 14, 2007, 9:00 AM EST. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Feb 13, 2007, 3:46 PM EST (20:46 UTC)
In effect from
Feb 14, 2007, 9:00 AM EST
Expired
Feb 14, 2007, 10:00 AM EST
In force
60 min
Issued by
NWS Philadelphia/Mount Holly
Flood severity
None

Counties New Castle County, DE, Cecil County, MD, Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Salem County, NJ, Delaware County, PA, Philadelphia County, PA

The radar

The Philadelphia radar (KDIX), 54 km from the middle of the area, began a volume at 20:51 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, 8.8 hours before the alert went out and 103 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 2007-02-13Temperature 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 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 2007-02-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 63 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1027 m above ground
0-6 km bulk shear
71 kt
0-1 km storm-relative helicity
63 m²/s²
0-3 km storm-relative helicity
288 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 132046
FFAPHI

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
346 PM EST TUE FEB 13 2007

DEZ001-MDZ008-NJZ012-013-015>019-PAZ070-071-141100-
/O.NEW.KPHI.FA.A.0002.070214T1400Z-070215T0200Z/
/00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NEW CASTLE-CECIL-MIDDLESEX-WESTERN MONMOUTH-MERCER-SALEM-
GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-DELAWARE-PHILADELPHIA-
INCLUDING THE CITIES OF...WILMINGTON...ELKTON...NEW BRUNSWICK...
FREEHOLD...TRENTON...PENNSVILLE...GLASSBORO...CAMDEN...
CHERRY HILL...MOORESTOWN...MOUNT HOLLY...MEDIA
346 PM EST TUE FEB 13 2007

...FLOOD WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY
EVENING...

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...MIDDLESEX...NORTHWESTERN BURLINGTON...
  SALEM AND WESTERN MONMOUTH. IN SOUTHEAST PENNSYLVANIA...
  DELAWARE AND PHILADELPHIA.

* FROM WEDNESDAY MORNING THROUGH WEDNESDAY EVENING

* LOW PRESSURE MOVING THROUGH THE TENNESSEE RIVER VALLEY TUESDAY
  AFTERNOON WILL WEAKEN AND RECONSTITUTE OFF THE CAROLINA COAST
  TUESDAY NIGHT, THEN INTENSIFY AS IT MOVES NORTHEAST ALONG THE
  EASTERN SEABOARD ON WEDNESDAY. PRECIPITATION ASSOCIATED WITH THE
  LOW, WHICH INITIALLY WAS EITHER SNOW OR A WINTRY MIX OF
  PRECIPITATION ACROSS THE REGION, IS EXPECTED TO CHANGE TO RAIN
  BY OR SHORTLY AFTER DAYBREAK WEDNESDAY ACROSS AREAS NEAR AND
  SOUTHEAST OF THE INTERSTATE 95 CORRIDOR.

* THE RAIN MAY BECOME HEAVY ON WEDNESDAY AS THE INTENSIFYING LOW
  BRINGS GULF MOISTURE NORTH. ONE AND ONE-HALF TO TWO INCHES OF
  RAIN MAY FALL. THAT RAIN MAY COMBINE WITH ANY MELTING SNOW OR
  ICE ON THE GROUND TO CAUSE CONSIDERABLE RUNOFF, AND THAT RUNOFF
  LIKELY WILL NOT BE ABSORBED TO ANY GREAT DEGREE BY THE LARGELY
  FROZEN GROUND. FLOODING OF STREAMS, CREEKS, AND POOR DRAINAGE
  AREAS MAY RESULT. MOREOVER, IF MINOR TIDAL FLOODING OCCURS ALONG
  THE TIDAL DELAWARE RIVER, THE RUNOFF WOULD EXACERBATE IT.

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/DELISI
2 follow-up statements
000 
WGUS61 KPHI 141013
FFAPHI

FLOOD WATCH
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
513 AM EST WED FEB 14 2007

DEZ001-MDZ008-NJZ012-013-015>019-PAZ070-071-142200-
/O.CON.KPHI.FA.A.0002.070214T1400Z-070215T0200Z/
/00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NEW CASTLE-CECIL-MIDDLESEX-WESTERN MONMOUTH-MERCER-SALEM-
GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-DELAWARE-PHILADELPHIA-
INCLUDING THE CITIES OF...WILMINGTON...ELKTON...NEW BRUNSWICK...
FREEHOLD...TRENTON...PENNSVILLE...GLASSBORO...CAMDEN...
CHERRY HILL...MOORESTOWN...MOUNT HOLLY...MEDIA
513 AM EST WED FEB 14 2007

...FLOOD WATCH REMAINS IN EFFECT FROM 9 AM EST THIS MORNING
THROUGH THIS EVENING...

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...MIDDLESEX...NORTHWESTERN BURLINGTON...SALEM AND 
  WESTERN MONMOUTH. IN SOUTHEAST PENNSYLVANIA...DELAWARE AND 
  PHILADELPHIA.

* FROM 9 AM EST THIS MORNING THROUGH THIS EVENING

* LOW PRESSURE MOVING UP THE NORTHERN MID-ATLANTIC COAST EARLY
  THIS MORNING WILL INTENSIFY. PRECIPITATION ASSOCIATED WITH THE
  LOW...WHICH WAS MAINLY SLEET OR FREEZING RAIN EARLY THIS
  MORNING...MAY CHANGE TO RAIN OVER AT LEAST PORTIONS OF THE WATCH
  AREA. 

* FREEZING RAIN AND RAIN MAY BECOME HEAVY TODAY AS THE
  INTENSIFYING LOW BRINGS GULF MOISTURE NORTH. SOME LOCATIONS MAY
  SEE ONE AND ONE-HALF TO TWO INCHES OF RAIN. THAT MAY COMBINE
  WITH ANY MELTING SNOW OR ICE ON THE GROUND TO CAUSE CONSIDERABLE
  RUNOFF...AND THAT RUNOFF LIKELY WILL NOT BE ABSORBED TO ANY
  GREAT DEGREE BY THE LARGELY FROZEN GROUND. FLOODING OF
  STREAMS...CREEKS...AND POOR DRAINAGE AREAS MAY RESULT.

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.

$$

OHARA/DELISI
000 
WGUS61 KPHI 141500
FFAPHI

FLOOD WATCH
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1000 AM EST WED FEB 14 2007

...AXIS OF HEAVY RAIN WAS EAST OF THE WATCH AREA...

DEZ001-MDZ008-NJZ012-013-015>019-PAZ070-071-141600-
/O.CAN.KPHI.FA.A.0002.000000T0000Z-070215T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NEW CASTLE-
CECIL-MIDDLESEX-WESTERN MONMOUTH-MERCER-SALEM- GLOUCESTER-CAMDEN-
NORTHWESTERN BURLINGTON-DELAWARE-PHILADELPHIA- INCLUDING THE
CITIES OF...WILMINGTON...ELKTON...NEW BRUNSWICK...
FREEHOLD...TRENTON...PENNSVILLE...GLASSBORO...CAMDEN... CHERRY
HILL...MOORESTOWN...MOUNT HOLLY...MEDIA 959 AM EST WED FEB 14 2007

...FLOOD WATCH IS CANCELLED...

THE FLOOD WATCH FOR PORTIONS OF NORTHERN DELAWARE...NORTHEAST
MARYLAND...NEW JERSEY AND SOUTHEAST PENNSYLVANIA HAS BEEN
CANCELLED. 

HEAVY RAIN DEVELOPED OVERNIGHT BUT REMAINED JUST TO THE EAST OF
THE WATCH AREA. FARTHER WEST, ON THE OTHER SIDE OF THE WATCH, THE
PRECIPITATION IS FROZEN. 

 
$$

EBERWINE

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 13, 5:05 AM ESTWinter Storm WarningPHIHunterdon, Morris, Somerset, Sussex, Warren35 hr
Feb 13, 5:05 AM ESTWinter Weather AdvisoryPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 5 more24 hr
Feb 13, 4:07 PM ESTCoastal Flood AdvisoryPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 4 more13 hr

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.