Alert archive / New Jersey / Flood Watches in 2008
Flood Watch 7, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flood watch at May 8, 2008, 2:47 PM EDT for 4 states. It took effect at May 9, 2008, 2:00 AM EDT. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- May 8, 2008, 2:47 PM EDT (18:47 UTC)
- In effect from
- May 9, 2008, 2:00 AM EDT
- Expired
- May 9, 2008, 9:33 AM EDT
- In force
- 8 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Flood severity
- None
Counties New Castle County, DE, Cecil County, MD, Kent 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, Warren County, NJ, Berks County, PA, Delaware County, PA, Lehigh County, PA, Northampton County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 66 km from the middle of the area, began a volume at 18:50 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, 6.8 hours before the alert went out and 112 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1146 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 116 m²/s²
- 0-3 km storm-relative helicity
- 139 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS61 KPHI 081847 FFAPHI URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 247 PM EDT THU MAY 8 2008 ...HEAVY RAIN EXPECTED TONIGHT THROUGH FRIDAY NIGHT... DEZ001-MDZ008-012-NJZ007>010-012-013-015>019-PAZ060>062-067>071- 091000- /O.NEW.KPHI.FA.A.0007.080509T0600Z-080510T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NEW CASTLE-CECIL-KENT MD-WARREN-MORRIS-HUNTERDON-SOMERSET- MIDDLESEX-WESTERN MONMOUTH-MERCER-SALEM-GLOUCESTER-CAMDEN- NORTHWESTERN BURLINGTON-BERKS-LEHIGH-NORTHAMPTON-CHESTER- MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA- INCLUDING THE CITIES OF...WILMINGTON...ELKTON...CHESTERTOWN... WASHINGTON...MORRISTOWN...FLEMINGTON...SOMERVILLE... NEW BRUNSWICK...FREEHOLD...TRENTON...PENNSVILLE...GLASSBORO... CAMDEN...CHERRY HILL...MOORESTOWN...MOUNT HOLLY...READING... ALLENTOWN...BETHLEHEM...EASTON...WEST CHESTER...NORRISTOWN... DOYLESTOWN...MEDIA 247 PM EDT THU MAY 8 2008 ...FLOOD WATCH IN EFFECT FROM 2 AM EDT FRIDAY THROUGH FRIDAY EVENING... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A * FLOOD WATCH FOR PORTIONS OF NORTHERN DELAWARE...NORTHEAST MARYLAND...NEW JERSEY AND PENNSYLVANIA...INCLUDING THE FOLLOWING AREAS...IN NORTHERN DELAWARE...NEW CASTLE. IN NORTHEAST MARYLAND...CECIL AND KENT MD. IN NEW JERSEY... CAMDEN...GLOUCESTER...HUNTERDON...MERCER...MIDDLESEX... MORRIS...NORTHWESTERN BURLINGTON...SALEM...SOMERSET...WARREN AND WESTERN MONMOUTH. IN PENNSYLVANIA...BERKS...BUCKS... CHESTER...DELAWARE...LEHIGH...MONTGOMERY...NORTHAMPTON AND PHILADELPHIA. * FROM 2 AM EDT FRIDAY THROUGH FRIDAY EVENING AN AREA OF LOW PRESSURE MOVING THROUGH EASTERN CANADA HAS PULLED A COLD FRONT ACROSS THE AREA THAT WILL BECOME NEARLY STATIONARY OVERNIGHT AND INTO FRIDAY. A SECOND AREA OF LOW PRESSURE WILL MOVE ALONG THIS FRONTAL BOUNDARY AND INTO THE AREA ON FRIDAY. AS THIS LOW PRESSURE SYSTEM MOVES THROUGH THE AREA, HEAVY RAINFALL WILL MOVE IN FROM THE SOUTHWEST. IF THERE IS ENOUGH INSTABILITY, SCATTERED THUNDERSTORMS WILL DEVELOP. HOWEVER, THIS WOULD MAINLY BE SOUTH OF THE FRONTAL BOUNDARY, WHICH WOULD LIKELY BE SOUTHERN NEW JERSEY AND THE DELMARVA AREA. RAINFALL AMOUNTS ARE EXPECTED TO RANGE FROM 1 TO 2 INCHES, WITH HIGHER AMOUNTS UP TO 3 INCHES POSSIBLE, ESPECIALLY IF ANY THUNDERSTORMS DO DEVELOP. THE MAIN AREAS THAT ARE EXPECTED TO EXPERIENCE FLOODING WITH THIS STORM WILL BE URBANIZED AREAS, AS WELL AS SMALLER CREEKS AND STREAMS. THE LARGER STEM RIVERS, SUCH AS THE DELAWARE, ARE NOT EXPECTED TO FLOOD, BUT WILL LIKELY SEE RISES. A FLOOD WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR HEAVY RAIN ACROSS THE WATCH AREA, WHICH MAY LEAD TO FLOODING ALONG STREAMS AND CREEKS. YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP. LISTEN TO NOAA WEATHER RADIO ALL HAZARDS OR YOUR LOCAL MEDIA FOR THE LATER UPDATES ON THIS SITUATION. $$ ROBERTSON
2 follow-up statements
000 WGUS61 KPHI 090830 FFAPHI FLOOD WATCH NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 430 AM EDT FRI MAY 9 2008 ...RAIN HEAVY AT TIMES AND SOME THUNDERSTORMS TODAY INTO THIS EVENING MAY CAUSE FLOODING... DEZ001-MDZ008-012-NJZ007>010-012-013-015>019-PAZ060>062-067>071- 091600- /O.CON.KPHI.FA.A.0007.000000T0000Z-080510T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NEW CASTLE-CECIL-KENT MD-WARREN-MORRIS-HUNTERDON-SOMERSET- MIDDLESEX-WESTERN MONMOUTH-MERCER-SALEM-GLOUCESTER-CAMDEN- NORTHWESTERN BURLINGTON-BERKS-LEHIGH-NORTHAMPTON-CHESTER- MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA- INCLUDING THE CITIES OF...WILMINGTON...ELKTON...CHESTERTOWN... WASHINGTON...MORRISTOWN...FLEMINGTON...SOMERVILLE... NEW BRUNSWICK...FREEHOLD...TRENTON...PENNSVILLE...GLASSBORO... CAMDEN...CHERRY HILL...MOORESTOWN...MOUNT HOLLY...READING... ALLENTOWN...BETHLEHEM...EASTON...WEST CHESTER...NORRISTOWN... DOYLESTOWN...MEDIA 430 AM EDT FRI MAY 9 2008 ...FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING... 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 AND KENT MD. IN NEW JERSEY...CAMDEN...GLOUCESTER...HUNTERDON... MERCER...MIDDLESEX...MORRIS...NORTHWESTERN BURLINGTON... SALEM...SOMERSET...WARREN AND WESTERN MONMOUTH. IN PENNSYLVANIA...BERKS...BUCKS...CHESTER...DELAWARE...LEHIGH... MONTGOMERY...NORTHAMPTON AND PHILADELPHIA. * THROUGH THIS EVENING * HEAVY RAIN WITH STRONG TO SEVERE THUNDERSTORMS OVER THE CENTRAL MID ATLANTIC REGION THURSDAY NIGHT SPREAD NORTHWARD OVER OUR AREA DURING THE PRE-DAWN HOURS OF FRIDAY MORNING. ALTHOUGH THERE WAS SOME WEAKENING OF THE INTENSITY OF THE RAIN AND THUNDERSTORMS, AREAS OF HEAVY RAIN AND SOME THUNDERSTORMS WILL CONTINUE EARLY THIS MORNING. STRENGTHENING LOW PRESSURE WILL MOVE EAST-NORTHEASTWARD TODAY ALONG A FRONTAL BOUNDARY STALLED IN THE MID ATLANTIC REGION. AS THIS LOW MOVES THROUGH OUR REGION, AREAS OF HEAVY RAINFALL, INCLUDING SOME STRONG THUNDERSTORMS, WILL OCCUR. THUNDERSTORMS WOULD BE MAINLY ALONG AND SOUTH OF THE FRONTAL BOUNDARY, WHICH WOULD LIKELY BE OVER SOUTHERN NEW JERSEY, EXTREME SOUTHEASTERN PENNSYLVANIA, AND THE NORTHEAST MARYLAND SHORE AND DELAWARE. RAINFALL AMOUNTS ARE EXPECTED TO RANGE BETWEEN 1.5 AND 2.5 INCHES, WITH LOCALLY HIGHER AMOUNTS UP TO AROUND 3 INCHES IN THUNDERSTORMS. IN ADDITION, ANY THUNDERSTORMS MAY HAVE VERY HIGH RAIN RATES. THE SITES MOSTLY LIKELY TO EXPERIENCE FLOODING ARE STREAMS AND CREEKS, AS WELL AS URBAN AREAS, AND IN LOW-LYING AND FLOOD-PRONE SPOTS. THE LARGER RIVERS, SUCH AS THE DELAWARE AND THE RARITAN, ARE NOT EXPECTED TO FLOOD, BUT WILL LIKELY SEE RISES. A FLOOD WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR HEAVY RAIN AND RESULTANT FLOODING ALONG STREAMS AND CREEKS. YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR...AND BE READY TO REACT TO... POSSIBLE FLOOD WARNINGS. IF FLOODING DEVELOPS, THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD TAKE ACTION BY MOVING TO HIGHER GROUND. MOTORISTS ARE CAUTIONED TO REFRAIN FROM DRIVING THROUGH FLOOD WATERS...TURN AROUND AND TAKE ANOTHER ROUTE IF YOU FIND THE ROAD IS COVERED WITH WATER. NEVER DRIVE AROUND BARRICADES. PLEASE LISTEN TO NOAA WEATHER RADIO ALL HAZARDS OR YOUR LOCAL MEDIA FOR THE LATEST WEATHER INFORMATION. $$
000 WGUS61 KPHI 091333 FFAPHI FLOOD WATCH NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 933 AM EDT FRI MAY 9 2008 DEZ001-MDZ008-012-NJZ007>010-012-013-015>019-PAZ060>062-067>071- 091445- /O.CAN.KPHI.FA.A.0007.000000T0000Z-080510T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NEW CASTLE-CECIL-KENT MD-WARREN-MORRIS-HUNTERDON-SOMERSET- MIDDLESEX-WESTERN MONMOUTH-MERCER-SALEM-GLOUCESTER-CAMDEN- NORTHWESTERN BURLINGTON-BERKS-LEHIGH-NORTHAMPTON-CHESTER- MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA- INCLUDING THE CITIES OF...WILMINGTON...ELKTON...CHESTERTOWN... WASHINGTON...MORRISTOWN...FLEMINGTON...SOMERVILLE... NEW BRUNSWICK...FREEHOLD...TRENTON...PENNSVILLE...GLASSBORO... CAMDEN...CHERRY HILL...MOORESTOWN...MOUNT HOLLY...READING... ALLENTOWN...BETHLEHEM...EASTON...WEST CHESTER...NORRISTOWN... DOYLESTOWN...MEDIA 933 AM EDT FRI MAY 9 2008 ...FLOOD WATCH IS CANCELLED... THE FLOOD WATCH FOR PORTIONS OF NORTHERN DELAWARE...NORTHEAST MARYLAND...NEW JERSEY AND PENNSYLVANIA HAS BEEN CANCELLED. WIDESPREAD FLOODING IS NO LONGER ANTICIPATED AND THEREFORE THE FLOOD WATCH HAS BEEN CANCELLED. PERIODS OF RAIN WILL CONTINUE THROUGH THE DAY BEFORE TAPERING OFF LATE THIS AFTERNOON. SOME AREAS MAY SEE UP TO AN ADDITIONAL INCH OF RAIN BUT NO FLOODING IS EXPECTED. PONDING OF WATER ON ROADWAYS MAY OCCUR, ESPECIALLY IN LOW LYING OR POOR DRAINAGE AREAS. $$ MEOLA
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 7, 10:21 PM EDT | Coastal Flood Advisory | PHI | Atlantic, Burlington, Cape May, Cumberland, Middlesex, Monmouth and 2 more | 4 hr |
Nearby
Flood Watches in New Jersey, 2008Flood Watches in Pennsylvania, 2008Flood Watches in Maryland, 2008Every flood watch in 2008
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.