Alert archive / New Jersey / Flood Watches in 2006

Flood Watch 5, NWS Philadelphia/Mount Holly

September 5, 20064 states

NWS Philadelphia/Mount Holly issued this flood watch at Sep 5, 2006, 4:16 AM EDT for 4 states. It took effect at Sep 5, 2006, 10:00 AM EDT. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
Sep 5, 2006, 4:16 AM EDT (08:16 UTC)
In effect from
Sep 5, 2006, 10:00 AM EDT
Expired
Sep 5, 2006, 5:49 PM EDT
In force
8 hr
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, Salem County, NJ, Berks County, PA, Delaware County, PA, Philadelphia County, PA

The radar

The Philadelphia radar (KDIX), 75 km from the middle of the area, began a volume at 08:19 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

Washington/Dulle, VA (KIAD), launched 00:00Z, 8.3 hours before the alert went out and 209 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, Washington/Dulle, VA at 00:00Z on 2006-09-05Temperature 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, Washington/Dulle, VA at 00:00Z on 2006-09-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -5 square meters per square second.193958Sfc1 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
1199 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
-5 m²/s²
0-3 km storm-relative helicity
47 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 050816
FFAPHI

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
416 AM EDT TUE SEP 5 2006

DEZ001-NJZ015-PAZ067>071-051800-
/O.NEW.KPHI.FA.A.0005.060905T1400Z-060906T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NEW CASTLE-MERCER-CHESTER-MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA-
INCLUDING THE CITIES OF...WILMINGTON...TRENTON...WEST CHESTER...
NORRISTOWN...DOYLESTOWN...MEDIA
416 AM EDT TUE SEP 5 2006

...FLOOD WATCH IN EFFECT FROM 10 AM EDT THIS MORNING THROUGH THIS
EVENING...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A

* FLOOD WATCH FOR PORTIONS OF NORTHERN DELAWARE...CENTRAL NEW 
  JERSEY AND SOUTHEAST PENNSYLVANIA...INCLUDING THE FOLLOWING 
  AREAS...IN NORTHERN DELAWARE...NEW CASTLE IN CENTRAL NEW 
  JERSEY...MERCER IN SOUTHEAST PENNSYLVANIA...BUCKS...CHESTER...
  DELAWARE...MONTGOMERY AND PHILADELPHIA.

* FROM 10 AM EDT THIS MORNING THROUGH THIS EVENING

* A LOW PRESSURE SYSTEM MOVING ACROSS THE SOUTHEAST ATLANTIC
  STATES TODAY WILL PASS OFF THE DELAWARE AND NEW JERSEY COASTS
  TONIGHT. THIS LOW WILL TAP BOTH MOISTURE FROM THE DEEP SOUTH AND
  SOME OF THE HIGH LEVEL MOISTURE FROM WHAT WAS ONCE PACIFIC
  HURRICANE JOHN.

* RAIN AMOUNTS COULD TOTAL BETWEEN 1 AND 2 INCHES WITH THIS SYSTEM.
  WITH THE PREVIOUS HEAVY RAIN FROM THE REMNANTS OF ERNESTO STILL
  RUNNING OFF AND THE SOILS WETTER THAN NORMAL, ISOLATED FLOODING
  FROM MODERATE TO LOCALLY HEAVY RAIN IS POSSIBLE. ISOLATED
  THUNDERSTORMS ARE ALSO POSSIBLE WHICH WOULD ONLY ADD TO THE
  LOCALLY HEAVY RAIN AND POOR DRAINAGE FLOODING POTENTIAL. SEVERAL
  STREAMS ARE VULNERABLE TO FLOODING AND THESE INCLUDE BUT ARE NOT
  LIMITED TO THE VALLEY CREEK...THE EAST BRANCH OF THE BRANDYWINE
  CREEK AND FRENCH CREEK IN CHESTER COUNTY...THE NESHAMINY CREEK
  IN BUCKS COUNTY...THE ASSUNPINK CREEK IN MERCER COUNTY AND THE
  CHRISTINA RIVER IN NEW CASTLE COUNTY.

* PONDING OF WATER ON ROADS AND LOW LYING AREAS WILL MAKE FOR A
  DIFFICULT COMMUTE, ESPECIALLY LATER TODAY AND THIS EVENING. THE
  STEADY RAIN WILL END OVERNIGHT AS THE LOW MOVES INTO NEW
  ENGLAND. STAY TUNED TO NOAA WEATHER RADIO ALL HAZARDS, AS WELL
  AS YOUR LOCAL COMMERCIAL TELEVISION OR RADIO OUTLET, FOR MORE
  DETAILED INFORMATION AS THIS EVENT DEVELOPS.

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.

$$

TFG/RPW
2 follow-up statements
000 
WGUS61 KPHI 051400
FFAPHI

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1000 AM EDT TUE SEP 5 2006

MDZ008-NJZ016>019-027-PAZ060-052200-
/O.EXA.KPHI.FA.A.0005.060905T1400Z-060906T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CECIL-SALEM-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-
SOUTHEASTERN BURLINGTON-BERKS-
INCLUDING THE CITIES OF...ELKTON...PENNSVILLE...GLASSBORO...
CAMDEN...CHERRY HILL...MOORESTOWN...MOUNT HOLLY...
WHARTON STATE FOREST...READING
1000 AM EDT TUE SEP 5 2006

...FLOOD WATCH IN EFFECT THROUGH THIS EVENING...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS EXPANDED THE

* FLOOD WATCH TO INCLUDE PORTIONS OF NORTHEAST MARYLAND...
  SOUTHERN NEW JERSEY AND EAST CENTRAL PENNSYLVANIA...INCLUDING 
  THE FOLLOWING AREAS...IN NORTHEAST MARYLAND...CECIL IN 
  SOUTHERN NEW JERSEY...CAMDEN...GLOUCESTER...NORTHWESTERN 
  BURLINGTON...SALEM AND SOUTHEASTERN BURLINGTON IN EAST CENTRAL 
  PENNSYLVANIA...BERKS.

* THROUGH THIS EVENING

* A LOW PRESSURE SYSTEM MOVING ACROSS THE SOUTHEAST ATLANTIC 
  STATES TODAY WILL PASS OFF THE DELAWARE AND NEW JERSEY COASTS 
  TONIGHT. THIS LOW WILL TAP BOTH MOISTURE FROM THE DEEP SOUTH 
  AND SOME OF THE HIGH LEVEL MOISTURE FROM WHAT WAS ONCE PACIFIC 
  HURRICANE JOHN. 

* RAIN AMOUNTS COULD TOTAL BETWEEN 1 AND 2 INCHES WITH THIS
  SYSTEM. WITH THE PREVIOUS HEAVY RAIN FROM THE REMNANTS OF
  ERNESTO STILL RUNNING OFF AND THE SOILS WETTER THAN NORMAL...
  ISOLATED FLOODING FROM MODERATE TO LOCALLY HEAVY RAIN IS
  POSSIBLE. ISOLATED THUNDERSTORMS ARE ALSO POSSIBLE WHICH WOULD
  ONLY ADD TO THE LOCALLY HEAVY RAIN AND POOR DRAINAGE FLOODING
  POTENTIAL. SEVERAL RIVER AND STREAMS ARE VULNERABLE TO FLOODING
  AND THESE INCLUDE BUT ARE NOT LIMITED TO THE COOPER RIVER IN
  CAMDEN COUNTY...PENNSAUKEN CREEK IN CAMDEN COUNTY...RANCOACAS
  CREEK IN BURLINGTON COUNTY...ELK CREEK IN CECIL COUNTY...AND THE
  MANATAWNY CREEK IN BERKS COUNTY.

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-NJZ015-PAZ067>071-052200-
/O.CON.KPHI.FA.A.0005.000000T0000Z-060906T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NEW CASTLE-MERCER-CHESTER-MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA-
INCLUDING THE CITIES OF...WILMINGTON...TRENTON...WEST CHESTER...
NORRISTOWN...DOYLESTOWN...MEDIA
1000 AM EDT TUE SEP 5 2006

...FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING...

THE FLOOD WATCH CONTINUES FOR

* PORTIONS OF NORTHERN DELAWARE...CENTRAL NEW JERSEY AND 
  SOUTHEAST PENNSYLVANIA...INCLUDING THE FOLLOWING AREAS...IN 
  NORTHERN DELAWARE...NEW CASTLE IN CENTRAL NEW JERSEY...MERCER 
  IN SOUTHEAST PENNSYLVANIA...BUCKS...CHESTER...DELAWARE...
  MONTGOMERY AND PHILADELPHIA.

* THROUGH THIS EVENING

* A LOW PRESSURE SYSTEM MOVING ACROSS THE SOUTHEAST ATLANTIC 
  STATES TODAY WILL PASS OFF THE DELAWARE AND NEW JERSEY COASTS 
  TONIGHT. THIS LOW WILL TAP BOTH MOISTURE FROM THE DEEP SOUTH 
  AND SOME OF THE HIGH LEVEL MOISTURE FROM WHAT WAS ONCE PACIFIC 
  HURRICANE JOHN. 

* RAIN AMOUNTS COULD TOTAL BETWEEN 1 AND 2 INCHES WITH THIS 
  SYSTEM. WITH THE PREVIOUS HEAVY RAIN FROM THE REMNANTS OF 
  ERNESTO STILL RUNNING OFF AND THE SOILS WETTER THAN NORMAL... 
  ISOLATED FLOODING FROM MODERATE TO LOCALLY HEAVY RAIN IS 
  POSSIBLE. ISOLATED THUNDERSTORMS ARE ALSO POSSIBLE WHICH WOULD 
  ONLY ADD TO THE LOCALLY HEAVY RAIN AND POOR DRAINAGE FLOODING 
  POTENTIAL. SEVERAL STREAMS ARE VULNERABLE TO FLOODING AND 
  THESE INCLUDE BUT ARE NOT LIMITED TO THE VALLEY CREEK...THE 
  EAST BRANCH OF THE BRANDYWINE CREEK AND FRENCH CREEK IN 
  CHESTER COUNTY...THE NESHAMINY CREEK IN BUCKS COUNTY...THE 
  ASSUNPINK CREEK IN MERCER COUNTY AND THE CHRISTINA RIVER IN 
  NEW CASTLE COUNTY. 

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.

$$


TFG/RPW/PO/ZEV/KRUZDLO
000 
WGUS61 KPHI 052149
FFAPHI

FLOOD WATCH
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
549 PM EDT TUE SEP 5 2006

DEZ001-MDZ008-NJZ015>019-027-PAZ060-067>071-052300-
/O.CAN.KPHI.FA.A.0005.000000T0000Z-060906T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NEW CASTLE-CECIL-MERCER-SALEM-GLOUCESTER-CAMDEN-
NORTHWESTERN BURLINGTON-SOUTHEASTERN BURLINGTON-BERKS-CHESTER-
MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA-
INCLUDING THE CITIES OF...WILMINGTON...ELKTON...TRENTON...
PENNSVILLE...GLASSBORO...CAMDEN...CHERRY HILL...MOORESTOWN...
MOUNT HOLLY...WHARTON STATE FOREST...READING...WEST CHESTER...
NORRISTOWN...DOYLESTOWN...MEDIA
549 PM EDT TUE SEP 5 2006

...FLOOD WATCH IS CANCELLED...

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

HEAVY RAIN FELL IN THE LOWER DELAWARE VALLEY EARLIER TODAY.
PHILADELPHIA HAD OVER TWO INCHES OF RAIN. ALTHOUGH ADDITIONAL
LIGHT RAIN WILL OCCUR THIS EVENING IN THE WATCH AREA, IT SHOULD
NOT CAUSE WIDESPREAD FLOODING.

MOTORISTS SHOULD CONTINUE TO WATCH FOR PONDING OF WATER ON ROADS
AS RUNOFF PERSISTS THIS EVENING.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 5, 2:00 PM EDTCoastal Flood StatementPHIAtlantic, Burlington, Cape May, Cumberland, Middlesex, Monmouth and 1 more10 hr

Nearby

Flood Watches in New Jersey, 2006Flood Watches in Pennsylvania, 2006Flood Watches in Maryland, 2006Every 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.