Alert archive / New Jersey / Flash Flood Watches in 2012
Flash Flood Watch 2, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood watch at Jun 1, 2012, 4:15 PM EDT for 7 counties in Pennsylvania; 11 counties in New Jersey; New Castle County, Delaware. It took effect at Jun 1, 2012, 10:00 PM EDT. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Jun 1, 2012, 4:15 PM EDT (20:15 UTC)
- In effect from
- Jun 1, 2012, 10:00 PM EDT
- Expired
- Jun 2, 2012, 3:31 AM EDT
- In force
- 6 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Flood severity
- None
Counties New Castle County, DE, Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth 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), 74 km from the middle of the area, began a volume at 20:15 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, 8.3 hours before the alert went out and 191 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
- 1177 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 112 m²/s²
- 0-3 km storm-relative helicity
- 116 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
731 WGUS61 KPHI 012015 FFAPHI URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 415 PM EDT FRI JUN 1 2012 DEZ001-NJZ001-007>010-012>015-017>019-PAZ054-055-060>062-067>071- 020415- /O.NEW.KPHI.FF.A.0002.120602T0200Z-120602T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NEW CASTLE-SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX- WESTERN MONMOUTH-EASTERN MONMOUTH-MERCER-GLOUCESTER-CAMDEN- NORTHWESTERN BURLINGTON-CARBON-MONROE-BERKS-LEHIGH-NORTHAMPTON- CHESTER-MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA- INCLUDING THE CITIES OF...WILMINGTON...NEWTON...WASHINGTON... MORRISTOWN...FLEMINGTON...SOMERVILLE...NEW BRUNSWICK...FREEHOLD... SANDY HOOK...TRENTON...GLASSBORO...CAMDEN...CHERRY HILL... MOORESTOWN...MOUNT HOLLY...JIM THORPE...STROUDSBURG...READING... ALLENTOWN...BETHLEHEM...EASTON...WEST CHESTER...NORRISTOWN... DOYLESTOWN...MEDIA...PHILADELPHIA 415 PM EDT FRI JUN 1 2012 ...FLASH FLOOD WATCH IN EFFECT FROM 10 PM EDT THIS EVENING THROUGH SATURDAY MORNING... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A * FLASH FLOOD WATCH FOR PORTIONS OF NORTHERN DELAWARE...NEW JERSEY AND PENNSYLVANIA...INCLUDING THE FOLLOWING AREAS...IN NORTHERN DELAWARE...NEW CASTLE. IN NEW JERSEY...CAMDEN... EASTERN MONMOUTH...GLOUCESTER...HUNTERDON...MERCER... MIDDLESEX...MORRIS...NORTHWESTERN BURLINGTON...SOMERSET... SUSSEX...WARREN AND WESTERN MONMOUTH. IN PENNSYLVANIA... BERKS...BUCKS...CARBON...CHESTER...DELAWARE...LEHIGH... MONROE...MONTGOMERY...NORTHAMPTON AND PHILADELPHIA. * FROM 10 PM EDT THIS EVENING THROUGH SATURDAY MORNING * A COLD FRONT WILL CROSS THE REGION TONIGHT AND EARLY SATURDAY MORNING AND WILL PRODUCE WIDESPREAD SHOWERS AND THUNDERSTORMS. RAINFALL AMOUNTS BETWEEN 1.00 AND 1.50 INCHES WILL BE COMMON. GREATER AMOUNTS, UP TO 2.50 INCHES, WILL BE POSSIBLE IN THE STRONGER STORMS. 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. && $$ KRUZDLO
1 follow-up statement
410 WGUS61 KPHI 020731 FFAPHI FLOOD WATCH NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 331 AM EDT SAT JUN 2 2012 DEZ001-NJZ001-007>010-012>015-017>019-PAZ054-055-060>062-067>071- 020845- /O.CAN.KPHI.FF.A.0002.000000T0000Z-120602T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NEW CASTLE-SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX- WESTERN MONMOUTH-EASTERN MONMOUTH-MERCER-GLOUCESTER-CAMDEN- NORTHWESTERN BURLINGTON-CARBON-MONROE-BERKS-LEHIGH-NORTHAMPTON- CHESTER-MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA- INCLUDING THE CITIES OF...WILMINGTON...NEWTON...WASHINGTON... MORRISTOWN...FLEMINGTON...SOMERVILLE...NEW BRUNSWICK...FREEHOLD... SANDY HOOK...TRENTON...GLASSBORO...CAMDEN...CHERRY HILL... MOORESTOWN...MOUNT HOLLY...JIM THORPE...STROUDSBURG...READING... ALLENTOWN...BETHLEHEM...EASTON...WEST CHESTER...NORRISTOWN... DOYLESTOWN...MEDIA...PHILADELPHIA 331 AM EDT SAT JUN 2 2012 ...FLASH FLOOD WATCH IS CANCELLED... THE FLASH FLOOD WATCH FOR PORTIONS OF NORTHERN DELAWARE...NEW JERSEY AND PENNSYLVANIA HAS BEEN CANCELLED. $$
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 1, 6:20 AM EDT | Coastal Flood Advisory | PHI | Delaware, Philadelphia | 24 hr |
| Jun 1, 5:31 PM EDT | Special Weather Statement | PHI | Berks | 59 min |
| Jun 1, 6:17 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 44 min |
| Jun 1, 6:58 PM EDT | Areal Flood Advisory | PHI | Berks | 6 hr |
Nearby
Flash Flood Watches in New Jersey, 2012Flash Flood Watches in Pennsylvania, 2012Flash Flood Watches in Delaware, 2012Every flash flood watch in 2012
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.