Alert archive / New Jersey / Flood Watches in 2011
Flood Watch 10, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flood watch at Aug 13, 2011, 3:10 PM EDT for 4 states. It took effect at Aug 13, 2011, 6:00 PM EDT. It was in force for 10 hr.
The area
The counties it named.
The facts
- Issued
- Aug 13, 2011, 3:10 PM EDT (19:10 UTC)
- In effect from
- Aug 13, 2011, 6:00 PM EDT
- Expired
- Aug 14, 2011, 3:42 AM EDT
- In force
- 10 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Flood severity
- None
Counties New Castle County, DE, Cecil County, MD, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Morris 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), 87 km from the middle of the area, began a volume at 19:13 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 12:00Z, 7.2 hours before the alert went out and 200 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
- 5750 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- 47 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
868 WGUS61 KPHI 131910 FFAPHI URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 310 PM EDT SAT AUG 13 2011 DEZ001-MDZ008-NJZ001-007>010-012-015-PAZ054-055-060>062-067>071- 140315- /O.NEW.KPHI.FA.A.0010.110813T2200Z-110815T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NEW CASTLE-CECIL-SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET- MIDDLESEX-MERCER-CARBON-MONROE-BERKS-LEHIGH-NORTHAMPTON-CHESTER- MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA- INCLUDING THE CITIES OF...WILMINGTON...ELKTON...NEWTON... WASHINGTON...MORRISTOWN...FLEMINGTON...SOMERVILLE... NEW BRUNSWICK...TRENTON...JIM THORPE...STROUDSBURG...READING... ALLENTOWN...BETHLEHEM...EASTON...WEST CHESTER...NORRISTOWN... DOYLESTOWN...MEDIA...PHILADELPHIA 310 PM EDT SAT AUG 13 2011 ...FLOOD WATCH IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH LATE SUNDAY NIGHT... THE NATIONAL WEATHER SERVICE HAS ISSUED A * FLOOD WATCH FOR THE PENNSYLVANIA COUNTIES OF CARBON, MONROE, NORTHAMPTON, LEHIGH, BERKS, BUCKS, MONTGOMERY, CHESTER, DELAWARE AND PHILADELPHIA, THE NEW JERSEY COUNTIES OF SUSSEX, WARREN, MORRIS, HUNTERDON, SOMERSET, MIDDLESEX AND MERCER, FOR NEW CASTLE COUNTY IN DELAWARE AND FOR CECIL COUNTY IN MARYLAND. * THROUGH LATE SUNDAY NIGHT * A PERIOD OF UNSETTLED WEATHER IS EXPECTED FROM TONIGHT INTO THE EARLY PART OF THE NEW WEEK. SHOWERS AND THUNDERSTORMS ARE ANTICIPATED WITH PERIODS OF HEAVY RAIN LIKELY. RAINFALL AMOUNTS OF TWO TO THREE INCHES ARE EXPECTED IN MUCH OF THE REGION WITH LOCALLY HIGHER AMOUNTS POSSIBLE. * THE FORECAST RAINFALL AMOUNTS WILL RESULT IN FLOODING ALONG STREAMS AND CREEKS AND IN AREAS OF POOR DRAINAGE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON CURRENT FORECASTS. BE SURE TO CHECK FOR UPDATED FORECASTS AND STATEMENTS AND BE ALERT FOR POSSIBLE FLOOD WARNINGS. IF YOU LIVE IN AN AREA THAT IS PRONE TO FLOODING, BE PREPARED TO TAKE ACTION IF FLOODING DEVELOPS. && $$ IOVINO
2 follow-up statements
732 WGUS61 KPHI 132345 FFAPHI FLOOD WATCH NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 745 PM EDT SAT AUG 13 2011 DEZ001-MDZ008-NJZ001-007>010-012-015-PAZ054-055-060>062-067>071- 140830- /O.CON.KPHI.FA.A.0010.000000T0000Z-110815T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NEW CASTLE-CECIL-SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET- MIDDLESEX-MERCER-CARBON-MONROE-BERKS-LEHIGH-NORTHAMPTON-CHESTER- MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA- INCLUDING THE CITIES OF...WILMINGTON...ELKTON...NEWTON... WASHINGTON...MORRISTOWN...FLEMINGTON...SOMERVILLE... NEW BRUNSWICK...TRENTON...JIM THORPE...STROUDSBURG...READING... ALLENTOWN...BETHLEHEM...EASTON...WEST CHESTER...NORRISTOWN... DOYLESTOWN...MEDIA...PHILADELPHIA 745 PM EDT SAT AUG 13 2011 ...FLOOD WATCH REMAINS IN EFFECT THROUGH LATE SUNDAY NIGHT... THE FLOOD WATCH CONTINUES FOR * PORTIONS OF NORTHERN DELAWARE...NORTHEAST MARYLAND...NEW JERSEY AND PENNSYLVANIA...INCLUDING THE FOLLOWING AREAS...IN NORTHERN DELAWARE...NEW CASTLE. IN NORTHEAST MARYLAND...CECIL. IN NEW JERSEY...HUNTERDON...MERCER...MIDDLESEX...MORRIS... SOMERSET...SUSSEX AND WARREN. IN PENNSYLVANIA...BERKS... BUCKS...CARBON...CHESTER...DELAWARE...LEHIGH...MONROE... MONTGOMERY...NORTHAMPTON AND PHILADELPHIA. * THROUGH LATE SUNDAY NIGHT. * SHOWERS AND THUNDERSTORMS ARE EXPECTED TONIGHT THROUGH SUNDAY NIGHT WITH PERIODS OF HEAVY RAIN LIKELY. RAINFALL AMOUNTS OF 2 TO 3 INCHES ARE EXPECTED IN MUCH OF THE REGION WITH LOCALLY HIGHER AMOUNTS POSSIBLE. * THE FORECAST RAINFALL AMOUNTS WILL RESULT IN FLOODING ALONG STREAMS AND CREEKS AND IN AREAS OF POOR DRAINAGE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON CURRENT FORECASTS. BE SURE TO CHECK FOR UPDATED FORECASTS AND STATEMENTS AND BE ALERT FOR POSSIBLE FLOOD WARNINGS. IF YOU LIVE IN AN AREA THAT IS PRONE TO FLOODING, BE PREPARED TO TAKE ACTION IF FLOODING DEVELOPS. && $$
547 WGUS61 KPHI 140742 FFAPHI URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 342 AM EDT SUN AUG 14 2011 DEZ001-MDZ008-NJZ001-007>010-012-015-PAZ054-055-060>062-067>071- 142000- /O.CAN.KPHI.FA.A.0010.000000T0000Z-110815T1000Z/ /O.NEW.KPHI.FF.A.0006.110814T0742Z-110815T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NEW CASTLE-CECIL-SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET- MIDDLESEX-MERCER-CARBON-MONROE-BERKS-LEHIGH-NORTHAMPTON-CHESTER- MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA- INCLUDING THE CITIES OF...WILMINGTON...ELKTON...NEWTON... WASHINGTON...MORRISTOWN...FLEMINGTON...SOMERVILLE... NEW BRUNSWICK...TRENTON...JIM THORPE...STROUDSBURG...READING... ALLENTOWN...BETHLEHEM...EASTON...WEST CHESTER...NORRISTOWN... DOYLESTOWN...MEDIA...PHILADELPHIA 342 AM EDT SUN AUG 14 2011 ...FLASH FLOOD WATCH IN EFFECT THROUGH LATE TONIGHT... ...FLOOD WATCH IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A * FLASH 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. IN NEW JERSEY...HUNTERDON... MERCER...MIDDLESEX...MORRIS...SOMERSET...SUSSEX AND WARREN. IN PENNSYLVANIA...BERKS...BUCKS...CARBON...CHESTER...DELAWARE... LEHIGH...MONROE...MONTGOMERY...NORTHAMPTON AND PHILADELPHIA. * THROUGH LATE TONIGHT * SHOWERS AND THUNDERSTORMS ARE EXPECTED TO CONTINUE TODAY INTO TONIGHT WITH PERIODS OF HEAVY RAIN. ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE EXPECTED IN MUCH OF THE REGION WITH LOCALLY HIGHER AMOUNTS POSSIBLE WITH TRAINING OF THE SHOWERS AND THUNDERSTORMS. MUCH OF THE AREA RECEIVED 1 TO 2 INCHES OF RAINFALL OVERNIGHT, WITH LOCALLY HIGHER AMOUNTS OF 3 TO 4 INCHES ACROSS EASTERN PENNSYLVANIA AND NORTHERN NEW JERSEY. THE RAIN MAY FALL IN A SHORT PERIOD OF TIME WITH HIGH RAINFALL RATES, LEADING TO FLASH FLOODING. * THE FORECAST RAINFALL AMOUNTS WILL RESULT IN FLOODING ALONG STREAMS AND CREEKS AND IN AREAS OF POOR DRAINAGE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && THE FLOOD WATCH FOR PORTIONS OF NORTHERN DELAWARE...NORTHEAST MARYLAND...NEW JERSEY AND PENNSYLVANIA HAS BEEN CANCELLED AND CHANGED TO A FLASH FLOOD WATCH. $$ DEZ002>004-MDZ012-015-019-020-NJZ013-014-016>027-142000- /O.NEW.KPHI.FF.A.0006.110814T0742Z-110815T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ KENT-INLAND SUSSEX-DELAWARE BEACHES-KENT MD-QUEEN ANNES-TALBOT- CAROLINE-WESTERN MONMOUTH-EASTERN MONMOUTH-SALEM-GLOUCESTER- CAMDEN-NORTHWESTERN BURLINGTON-OCEAN-CUMBERLAND-ATLANTIC-CAPE MAY- ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-COASTAL OCEAN- SOUTHEASTERN BURLINGTON- INCLUDING THE CITIES OF...DOVER...GEORGETOWN...REHOBOTH BEACH... CHESTERTOWN...CENTREVILLE...EASTON...DENTON...FREEHOLD... SANDY HOOK...PENNSVILLE...GLASSBORO...CAMDEN...CHERRY HILL... MOORESTOWN...MOUNT HOLLY...JACKSON...MILLVILLE...HAMMONTON... CAPE MAY COURT HOUSE...OCEAN CITY...ATLANTIC CITY... LONG BEACH ISLAND...WHARTON STATE FOREST 342 AM EDT SUN AUG 14 2011 ...FLASH FLOOD WATCH IN EFFECT THROUGH LATE TONIGHT... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A * FLASH FLOOD WATCH FOR PORTIONS OF DELAWARE...NORTHEAST MARYLAND AND NEW JERSEY...INCLUDING THE FOLLOWING AREAS...IN DELAWARE...DELAWARE BEACHES...INLAND SUSSEX AND KENT. IN NORTHEAST MARYLAND...CAROLINE...KENT MD...QUEEN ANNES AND TALBOT. IN NEW JERSEY...ATLANTIC...ATLANTIC COASTAL CAPE MAY... CAMDEN...CAPE MAY...COASTAL ATLANTIC...COASTAL OCEAN... CUMBERLAND...EASTERN MONMOUTH...GLOUCESTER...NORTHWESTERN BURLINGTON...OCEAN...SALEM...SOUTHEASTERN BURLINGTON AND WESTERN MONMOUTH. * THROUGH LATE TONIGHT * SHOWERS AND THUNDERSTORMS ARE EXPECTED TO CONTINUE TODAY INTO TONIGHT WITH PERIODS OF HEAVY RAIN. ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE EXPECTED IN MUCH OF THE REGION WITH LOCALLY HIGHER AMOUNTS POSSIBLE WITH TRAINING OF THE SHOWERS AND THUNDERSTORMS. MUCH OF THE AREA RECEIVED 1 TO 2 INCHES OF RAINFALL OVERNIGHT, WITH LOCALLY HIGHER AMOUNTS. THE RAIN MAY FALL IN A SHORT PERIOD OF TIME WITH HIGH RAINFALL RATES, LEADING TO FLASH FLOODING. * THE FORECAST RAINFALL AMOUNTS WILL RESULT IN FLOODING ALONG STREAMS AND CREEKS AND IN AREAS OF POOR DRAINAGE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ ROBERTSON
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 13, 3:13 PM EDT | Special Weather Statement | PHI | Salem | 92 min |
| Aug 13, 1:20 PM EDT | Special Weather Statement | PHI | Chester | 115 min |
| Aug 13, 4:32 PM EDT | Special Weather Statement | PHI | Berks, Chester | 88 min |
| Aug 13, 5:06 PM EDT | Special Weather Statement | PHI | Carbon, Monroe | 84 min |
| Aug 13, 6:15 PM EDT | Severe Thunderstorm Warning | PHI | Carbon | 30 min |
| Aug 13, 7:47 PM EDT | Areal Flood Advisory | PHI | Berks | 3 hr |
| Aug 13, 12:13 PM EDT | Special Weather Statement | PHI | Cecil | 62 min |
Nearby
Flood Watches in New Jersey, 2011Flood Watches in Pennsylvania, 2011Flood Watches in Delaware, 2011Every flood watch in 2011
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.