Alert archive / New Jersey / Flash Flood Watches in 2013
Flash Flood Watch 7, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood watch at Aug 1, 2013, 3:42 AM EDT for 4 states. It took effect at Aug 1, 2013, 10:00 AM EDT. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Aug 1, 2013, 3:42 AM EDT (07:42 UTC)
- In effect from
- Aug 1, 2013, 10:00 AM EDT
- Expired
- Aug 1, 2013, 6:03 PM EDT
- In force
- 8 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Flood severity
- None
All 23 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, Morris County, NJ, Salem County, NJ, Somerset County, NJ, Sussex County, NJ, Warren County, NJ, Berks County, PA, Bucks County, PA, Carbon County, PA, Chester County, PA, Delaware County, PA, Lehigh County, PA, Monroe County, PA, Montgomery County, PA, Northampton County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 77 km from the middle of the area, began a volume at 07:45 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, 7.7 hours before the alert went out and 205 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
- 1269 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 23 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
950 WGUS61 KPHI 010742 FFAPHI URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 342 AM EDT THU AUG 1 2013 DEZ001-MDZ008-NJZ001-007>010-012-015>019-PAZ054-055-060>062-070- 071-101>106-012000- /O.NEW.KPHI.FF.A.0007.130801T1400Z-130802T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NEW CASTLE-CECIL-SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET- MIDDLESEX-MERCER-SALEM-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON- CARBON-MONROE-BERKS-LEHIGH-NORTHAMPTON-DELAWARE-PHILADELPHIA- WESTERN CHESTER-EASTERN CHESTER-WESTERN MONTGOMERY- EASTERN MONTGOMERY-UPPER BUCKS-LOWER BUCKS- INCLUDING THE CITIES OF...WILMINGTON...ELKTON...NEWTON... WASHINGTON...MORRISTOWN...FLEMINGTON...SOMERVILLE... NEW BRUNSWICK...TRENTON...PENNSVILLE...GLASSBORO...CAMDEN... CHERRY HILL...MOORESTOWN...MOUNT HOLLY...JIM THORPE... STROUDSBURG...READING...ALLENTOWN...BETHLEHEM...EASTON...MEDIA... PHILADELPHIA...HONEY BROOK...OXFORD...WEST CHESTER... KENNET SQUARE...COLLEGEVILLE...POTTSTOWN...NORRISTOWN... LANSDALE...CHALFONT...PERKASIE...MORRISVILLE...DOYLESTOWN 342 AM EDT THU AUG 1 2013 ...FLASH FLOOD WATCH IN EFFECT FROM 10 AM EDT THIS MORNING THROUGH THIS EVENING... 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...CAMDEN... GLOUCESTER...HUNTERDON...MERCER...MIDDLESEX...MORRIS... NORTHWESTERN BURLINGTON...SALEM...SOMERSET...SUSSEX AND WARREN. IN PENNSYLVANIA...BERKS...CARBON...DELAWARE...EASTERN CHESTER...EASTERN MONTGOMERY...LEHIGH...LOWER BUCKS...MONROE... NORTHAMPTON...PHILADELPHIA...UPPER BUCKS...WESTERN CHESTER AND WESTERN MONTGOMERY. * FROM 10 AM EDT THIS MORNING THROUGH THIS EVENING. * SEVERAL BANDS OF SHOWERS AND THUNDERSTORMS WITH HEAVY RAIN ARE EXPECTED TO OCCUR TODAY. WHILE GENERAL AMOUNTS SHOULD AVERAGE ONE TO ONE AND A HALF INCHES, SOME LOCALIZED AMOUNTS REACHING THREE TO FOUR INCHES ARE POSSIBLE. THE HEAVIER RAIN POTENTIAL SHOULD START IN PENNSYLVANIA AND MARYLAND LATER THIS MORNING AND THEN SPREAD INTO THE REST OF THE WATCH AREA BY THE MIDDLE OF THE AFTERNOON. * EXPECT POOR DRAINAGE FLOODING AND PONDING OF WATER IN POOR DRAINAGE AREAS WITH A GREATER IMPACT ON COMMUTING AS WE MOVE THROUGH TODAY. SMALLER STREAMS AND CREEKS COULD FLOOD, ESPECIALLY IF SIMILAR AREAS THAT HAD HEAVY RAIN ON SUNDAY EXPERIENCE IT AGAIN TODAY. 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. && $$ KRUZDLO/GIGI
3 follow-up statements
380 WGUS61 KPHI 011316 FFAPHI FLOOD WATCH NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 916 AM EDT THU AUG 1 2013 DEZ001-MDZ008-NJZ001-007>010-012-015>019-PAZ054-055-060>062-070- 071-101>106-012100- /O.CON.KPHI.FF.A.0007.130801T1400Z-130802T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NEW CASTLE-CECIL-SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET- MIDDLESEX-MERCER-SALEM-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON- CARBON-MONROE-BERKS-LEHIGH-NORTHAMPTON-DELAWARE-PHILADELPHIA- WESTERN CHESTER-EASTERN CHESTER-WESTERN MONTGOMERY- EASTERN MONTGOMERY-UPPER BUCKS-LOWER BUCKS- INCLUDING THE CITIES OF...WILMINGTON...ELKTON...NEWTON... WASHINGTON...MORRISTOWN...FLEMINGTON...SOMERVILLE... NEW BRUNSWICK...TRENTON...PENNSVILLE...GLASSBORO...CAMDEN... CHERRY HILL...MOORESTOWN...MOUNT HOLLY...JIM THORPE... STROUDSBURG...READING...ALLENTOWN...BETHLEHEM...EASTON...MEDIA... PHILADELPHIA...HONEY BROOK...OXFORD...WEST CHESTER... KENNET SQUARE...COLLEGEVILLE...POTTSTOWN...NORRISTOWN... LANSDALE...CHALFONT...PERKASIE...MORRISVILLE...DOYLESTOWN 916 AM EDT THU AUG 1 2013 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING... THE FLASH 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 AND WARREN. IN PENNSYLVANIA...BERKS... CARBON...DELAWARE...EASTERN CHESTER...EASTERN MONTGOMERY... LEHIGH...LOWER BUCKS...MONROE...NORTHAMPTON...PHILADELPHIA... UPPER BUCKS...WESTERN CHESTER AND WESTERN MONTGOMERY. * THROUGH THIS EVENING. * SEVERAL BANDS OF SHOWERS AND SOME THUNDERSTORMS WITH LOCALLY HEAVY RAIN AT TIMES ARE EXPECTED TO OCCUR INTO THIS EVENING. WHILE GENERAL AMOUNTS SHOULD AVERAGE 1.0 TO 1.5 INCHES, SOME LOCALIZED AMOUNTS REACHING UP TO FOUR INCHES ARE POSSIBLE. THE GREATEST CHANCE FOR THUNDERSTORMS IS DURING THIS AFTERNOON. * EXPECT POOR DRAINAGE FLOODING AND PONDING OF WATER ON SOME ROADWAYS, WHICH WILL SLOW TRAVEL AT TIMES. SMALLER STREAMS AND CREEKS COULD LOCALLY FLOOD, ESPECIALLY IF SIMILAR AREAS THAT HAD VERY HEAVY RAIN ON SUNDAY EXPERIENCE IT AGAIN INTO THIS EVENING. IF THE RAIN FALLS HEAVY ENOUGH IN A SHORT PERIOD OF TIME, THE THREAT FOR LOCAL FLASH FLOODING WILL INCREASE. 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. && $$ KRUZDLO/GIGI/GORSE
383 WGUS61 KPHI 011921 FFAPHI FLOOD WATCH NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 321 PM EDT THU AUG 1 2013 NJZ001-007>010-012-PAZ054-055-060>062-101-103-105-012030- /O.CAN.KPHI.FF.A.0007.000000T0000Z-130802T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX-CARBON-MONROE- BERKS-LEHIGH-NORTHAMPTON-WESTERN CHESTER-WESTERN MONTGOMERY- UPPER BUCKS- INCLUDING THE CITIES OF...NEWTON...WASHINGTON...MORRISTOWN... FLEMINGTON...SOMERVILLE...NEW BRUNSWICK...JIM THORPE... STROUDSBURG...READING...ALLENTOWN...BETHLEHEM...EASTON... HONEY BROOK...OXFORD...COLLEGEVILLE...POTTSTOWN...CHALFONT... PERKASIE 321 PM EDT THU AUG 1 2013 ...FLASH FLOOD WATCH IS CANCELLED... THE FLASH FLOOD WATCH FOR PORTIONS OF NEW JERSEY AND PENNSYLVANIA HAS BEEN CANCELLED. SOME SHOWERS AND THUNDERSTORMS ARE EXPECTED THROUGH THIS EVENING, HOWEVER ORGANIZED HEAVY RAIN IS NO LONGER EXPECTED. THE FLASH FLOOD WATCH HAS BEEN CANCELLED AS ANY MINOR FLOODING IS EXPECTED TO BE LOCALIZED AND BRIEF. $$ DEZ001-MDZ008-NJZ015>019-PAZ070-071-102-104-106-020400- /O.CON.KPHI.FF.A.0007.000000T0000Z-130802T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NEW CASTLE-CECIL-MERCER-SALEM-GLOUCESTER-CAMDEN- NORTHWESTERN BURLINGTON-DELAWARE-PHILADELPHIA-EASTERN CHESTER- EASTERN MONTGOMERY-LOWER BUCKS- INCLUDING THE CITIES OF...WILMINGTON...ELKTON...TRENTON... PENNSVILLE...GLASSBORO...CAMDEN...CHERRY HILL...MOORESTOWN... MOUNT HOLLY...MEDIA...PHILADELPHIA...WEST CHESTER... KENNET SQUARE...NORRISTOWN...LANSDALE...MORRISVILLE...DOYLESTOWN 321 PM EDT THU AUG 1 2013 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... THE FLASH 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 SALEM. IN SOUTHEAST PENNSYLVANIA...DELAWARE...EASTERN CHESTER...EASTERN MONTGOMERY...LOWER BUCKS AND PHILADELPHIA. * UNTIL MIDNIGHT EDT TONIGHT. * SOME ADDITIONAL SHOWERS AND THUNDERSTORMS THROUGH THIS EVENING WILL BE ACCOMPANIED BY SOME DOWNPOURS. SOME PARTS OF THE AREA PICKED UP ABOUT 1 TO 2 INCHES OF RAIN TODAY, AND THE GROUND IS SATURATED. ANY ADDITIONAL DOWNPOURS CAN RESULT IN FLOODING. * POOR DRAINAGE FLOODING AND PONDING OF WATER ON SOME ROADWAYS CAN OCCUR DURING DOWNPOURS. SMALLER STREAMS AND CREEKS COULD LOCALLY FLOOD, ESPECIALLY IF SIMILAR AREAS THAT HAD VERY HEAVY RAIN ON SUNDAY AND SO FAR TODAY EXPERIENCE IT AGAIN THROUGH THIS EVENING. IF THE RAIN FALLS HEAVY ENOUGH IN A SHORT PERIOD OF TIME IN THE SAME AREA, THE THREAT FOR LOCAL FLASH FLOODING WILL INCREASE. 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. && $$
145 WGUS61 KPHI 012203 FFAPHI FLOOD WATCH NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 603 PM EDT THU AUG 1 2013 DEZ001-MDZ008-NJZ015>019-PAZ070-071-102-104-106-012315- /O.CAN.KPHI.FF.A.0007.000000T0000Z-130802T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NEW CASTLE-CECIL-MERCER-SALEM-GLOUCESTER-CAMDEN- NORTHWESTERN BURLINGTON-DELAWARE-PHILADELPHIA-EASTERN CHESTER- EASTERN MONTGOMERY-LOWER BUCKS- INCLUDING THE CITIES OF...WILMINGTON...ELKTON...TRENTON... PENNSVILLE...GLASSBORO...CAMDEN...CHERRY HILL...MOORESTOWN... MOUNT HOLLY...MEDIA...PHILADELPHIA...WEST CHESTER... KENNET SQUARE...NORRISTOWN...LANSDALE...MORRISVILLE...DOYLESTOWN 603 PM EDT THU AUG 1 2013 ...FLASH FLOOD WATCH IS CANCELLED... THE FLASH FLOOD WATCH FOR PORTIONS OF NORTHERN DELAWARE... NORTHEAST MARYLAND...NEW JERSEY AND SOUTHEAST PENNSYLVANIA HAS BEEN CANCELLED. SCATTERED SHOWERS AND POSSIBLY A THUNDERSTORM ARE EXPECTED THROUGH THE EVENING, HOWEVER WIDESPREAD HEAVY RAIN IS NO LONGER ANTICIPATED. THEREFORE, THE FLASH FLOOD WATCH HAS BEEN CANCELLED. ANY FLOODING THAT OCCURS WITH THE SCATTERED SHOWERS OR THUNDERSTORMS SHOULD BE LOCALIZED AND BRIEF. $$
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 1, 1:22 PM EDT | Special Marine Warning | PHI | 53 min | |
| Aug 1, 10:50 AM EDT | Areal Flood Advisory | PHI | Chester, Delaware, Philadelphia | 3 hr |
| Aug 1, 11:28 AM EDT | Special Weather Statement | PHI | Philadelphia | 62 min |
| Aug 1, 11:57 AM EDT | River Flood Warning | PHI | New Castle | 3 hr |
| Aug 1, 12:17 PM EDT | Special Weather Statement | PHI | Kent | 43 min |
| Aug 1, 12:48 PM EDT | Areal Flood Advisory | PHI | Kent, Sussex | 3 hr |
| Aug 1, 12:50 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 40 min |
| Aug 1, 1:12 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 48 min |
| Aug 1, 2:35 PM EDT | Areal Flood Advisory | PHI | Sussex | 3 hr |
| Aug 1, 2:57 PM EDT | Flash Flood Warning | PHI | Sussex | 3 hr |
| Aug 1, 5:58 PM EDT | Flash Flood Warning | PHI | Sussex | 4 hr |
| Aug 1, 11:51 AM EDT | Areal Flood Advisory | PHI | Kent, Queen Anne's | 3 hr |
Nearby
Flash Flood Watches in New Jersey, 2013Flash Flood Watches in Pennsylvania, 2013Flash Flood Watches in Delaware, 2013Every flash flood watch in 2013
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.