Alert archive / New Jersey / Areal Flood Advisories in 2009
Areal Flood Advisory 28, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this areal flood advisory at Jul 2, 2009, 3:38 AM EDT for Hunterdon County, Morris County, New Jersey. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jul 2, 2009, 3:38 AM EDT (07:38 UTC)
- Expired
- Jul 2, 2009, 6:30 AM EDT
- In force
- 3 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Hunterdon County, NJ, Morris County, NJ
The radar
The Philadelphia radar (KDIX), 89 km from the middle of the area, began a volume at 07:38 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, 7.6 hours before the alert went out and 158 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
- 108 J/kg
- Mixed-layer CIN
- -156 J/kg
- Mixed-layer LCL
- 752 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 128 m²/s²
- 0-3 km storm-relative helicity
- 195 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
What forecasters said that day
The local office's own words before this areal flood advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Philadelphia/Mount Holly wrote its last area forecast discussion before this areal flood advisory went out at Jul 1, 9:22 PM EDT, 6 hours 16 minutes earlier.
Area forecast discussion, Jul 1, 9:22 PM EDT, 6 hours 16 minutes before
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</html>Hazardous weather outlook, Jul 2, 3:30 AM EDT, 8 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 330 AM EDT THU JUL 2 2009 NJZ001-007>010-012>015-030730- SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX-WESTERN MONMOUTH- EASTERN MONMOUTH-MERCER- 330 AM EDT THU JUL 2 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NEW JERSEY...NORTHERN NEW JERSEY AND NORTHWEST NEW JERSEY. .DAY ONE...TODAY AND TONIGHT. THE STORM PREDICTION CENTER HAS PLACED OUR AREA UNDER A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR TODAY. SCATTERED THUNDERSTORMS VERY EARLY THIS MORNING AND AGAIN THIS AFTERNOON AND EVENING COULD PRODUCE DAMAGING WIND GUSTS AND LARGE HAIL...AS WELL AS FREQUENT DANGEROUS CLOUD TO GROUND LIGHTNING AND HEAVY RAINFALL WHICH COULD CAUSE LOCALIZED FLOODING. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND THIS EVENING. DEZ001>004-MDZ008-012-015-019-020-NJZ016>027-PAZ054-055-060>062- 067>071-030730- NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD- QUEEN ANNES-TALBOT-CAROLINE-SALEM-GLOUCESTER-CAMDEN- NORTHWESTERN BURLINGTON-OCEAN-CUMBERLAND-ATLANTIC-CAPE MAY- ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-COASTAL OCEAN- SOUTHEASTERN BURLINGTON-CARBON-MONROE-BERKS-LEHIGH-NORTHAMPTON- CHESTER-MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA- 330 AM EDT THU JUL 2 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL DELAWARE...NORTHERN DELAWARE...SOUTHERN DELAWARE...NORTHEAST MARYLAND...SOUTHERN NEW JERSEY...EAST CENTRAL PENNSYLVANIA...NORTHEAST PENNSYLVANIA AND SOUTHEAST PENNSYLVANIA. .DAY ONE...TODAY AND TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. ANZ450-030730- COASTAL WATERS FROM SANDY HOOK TO MANASQUAN INLET NJ OUT 20 NM- 330 AM EDT THU JUL 2 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS. .DAY ONE...TODAY AND TONIGHT. THE STORM PREDICTION CENTER HAS PLACED THIS MARINE AREA UNDER A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR TODAY. SCATTERED THUNDERSTORMS VERY EARLY THIS MORNING AND AGAIN THIS AFTERNOON AND EVENING COULD PRODUCE DAMAGING WIND GUSTS AND LARGE HAIL...AS WELL AS FREQUENT DANGEROUS CLOUD TO SURFACE LIGHTNING. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND THIS EVENING. ANZ430-431-451>455-030730- DELAWARE BAY WATERS NORTH OF EAST POINT NJ TO SLAUGHTER BEACH DE- DELAWARE BAY WATERS SOUTH OF EAST POINT NJ TO SLAUGHTER BEACH DE- COASTAL WATERS FROM MANASQUAN INLET TO LITTLE EGG INLET NJ OUT 20 NM- COASTAL WATERS FROM LITTLE EGG INLET TO GREAT EGG INLET NJ OUT 20 NM- COASTAL WATERS FROM GREAT EGG INLET TO CAPE MAY NJ OUT 20 NM- COASTAL WATERS FROM CAPE MAY NJ TO CAPE HENLOPEN DE OUT 20 NM- COASTAL WATERS FROM CAPE HENLOPEN TO FENWICK ISLAND DE OUT 20 NM- 330 AM EDT THU JUL 2 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS AND DELAWARE BAY WATERS. .DAY ONE...TODAY AND TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
In the hours before
Special weather statement, Jul 1, 10:17 PM EDT, 5 hours 21 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 1017 PM EDT WED JUL 1 2009 NJZ007-009-PAZ054-055-060>062-068-069-020415- BERKS PA-BUCKS PA-CARBON PA-HUNTERDON NJ-LEHIGH PA-MONROE PA- MONTGOMERY PA-NORTHAMPTON PA-WARREN NJ- 1017 PM EDT WED JUL 1 2009 ...STRONG THUNDERSTORMS WILL AFFECT BERKS...BUCKS...CARBON... HUNTERDON...LEHIGH...MONROE...MONTGOMERY...NORTHAMPTON AND WARREN COUNTIES... AT 1015 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG THUNDERSTORMS DEVELOPING ALONG A LINE EXTENDING FROM 20 MILES NORTHWEST OF TRENTON TO 14 MILES EAST OF READING...MOVING NORTH AT 10 TO 15 MPH. THE THUNDERSTORMS WILL BE NEAR LUMBERVILLE...RED HILL AROUND 1030 PM...BYRAM...STOCKTON AROUND 1045 PM...TINICUM...OTTSVILLE AROUND 1100 PM...ERWINNA...RICHLANDTOWN AROUND 1115 PM...FRENCHTOWN AND ZIONSVILLE AROUND 1130 PM. THESE STORMS IF THEY MAINTAIN THEMSELVES WOULD REACH THE POCONOS AND WARREN COUNTY ABOUT MIDNIGHT. VERY HEAVY RAIN WILL FALL FROM THESE STORMS...AND WILL CAUSE WATER TO POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS. EXPECT SMALL HAIL AND FREQUENT...DANGEROUS CLOUD TO GROUND LIGHTNING FROM THESE STORMS. TFG
Special weather statement, Jul 1, 10:30 PM EDT, 5 hours 8 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 1030 PM EDT WED JUL 1 2009 DEZ001>004-MDZ008-012-015-020-NJZ016>018-021>025-PAZ067-070-071- 020430- ATLANTIC NJ-ATLANTIC COASTAL CAPE MAY NJ-CAMDEN NJ-CAPE MAY NJ- CAROLINE MD-CECIL MD-CHESTER PA-COASTAL ATLANTIC NJ-CUMBERLAND NJ- DELAWARE PA-DELAWARE BEACHES DE-GLOUCESTER NJ-INLAND SUSSEX DE- KENT MD-KENT DE-NEW CASTLE DE-PHILADELPHIA PA-QUEEN ANNES MD- SALEM NJ- 1030 PM EDT WED JUL 1 2009 ...STRONG THUNDERSTORMS WILL AFFECT ATLANTIC...CAMDEN...CAPE MAY... CAROLINE...CECIL...CHESTER...CUMBERLAND...DELAWARE...GLOUCESTER... KENT...NEW CASTLE...PHILADELPHIA...QUEEN ANNES...SALEM AND SUSSEX COUNTIES... AT 1029 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN AREA OF SHOWERS AND SCATTERED STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 17 MILES SOUTHEAST OF LANCASTER TO 22 MILES WEST OF MIDDLETOWN TO 20 MILES NORTHEAST OF EASTON TO 23 MILES SOUTH OF SALISBURY...MOVING EAST AT 25 MPH. THE THUNDERSTORMS WILL BE NEAR ATGLEN...PARKESBURG AROUND 1045 PM...MODENA...SOUTH COATESVILLE AROUND 1100 PM...MARSHALLTON...DOWNINGTOWN AROUND 1115 PM...WEST CHESTER...WEST GOSHEN AROUND 1130 PM...NEWTOWN SQUARE AND DEVON-BERWYN AROUND 1145 PM. VERY HEAVY RAIN WILL FALL WITH THE STRONGEST STORMS...AND WILL CAUSE WATER TO POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS. WIND GUSTS TO AROUND 35 MPH ARE POSSIBLE WITH THE STRONGEST STORMS IN THIS AREA. EXPECT SMALL HAIL AND DANGEROUS CLOUD TO GROUND LIGHTNING FROM THESE STORMS. TFG
Special weather statement, Jul 2, 12:11 AM EDT, 3 hours 27 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 1211 AM EDT THU JUL 2 2009 NJZ007-009-010-015-PAZ054-055-060>062-067>069-020545- BERKS PA-BUCKS PA-CARBON PA-CHESTER PA-HUNTERDON NJ-LEHIGH PA- MERCER NJ-MONROE PA-MONTGOMERY PA-NORTHAMPTON PA-SOMERSET NJ- WARREN NJ- 1211 AM EDT THU JUL 2 2009 ...STRONG THUNDERSTORMS WILL AFFECT BERKS...BUCKS...CARBON... CHESTER...HUNTERDON...LEHIGH...MERCER...MONROE... MONTGOMERY...NORTHAMPTON...SOMERSET AND WARREN COUNTIES... AT 1210 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 6 MILES WEST OF ALLENTOWN...MOVING NORTHEAST AT 15 MPH. THE THUNDERSTORM WILL BE NEAR CLAUSSVILLE...ALLENTOWN AROUND 1215 AM...COFFEETOWN...COPLAY AROUND 1230 AM...NORTHAMPTON...NORTH CATASAUQUA AROUND 1245 AM...BEERSVILLE...CHAPMAN AROUND 100 AM... BELFAST AND EASTLAWN GARDENS AROUND 115 AM. VERY HEAVY RAIN WILL FALL FROM THESE STORMS...AND WILL CAUSE WATER TO POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS. WIND GUSTS TO 40 MPH AND SMALL HAIL AND FREQUENT...DANGEROUS CLOUD TO GROUND LIGHTNING FROM THESE STORMS. NIERENBERG
Special weather statement, Jul 2, 12:20 AM EDT, 3 hours 18 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 1220 AM EDT THU JUL 2 2009 DEZ001-NJZ013>027-PAZ068>071-020545- ATLANTIC NJ-ATLANTIC COASTAL CAPE MAY NJ-BUCKS PA-CAMDEN NJ- CAPE MAY NJ-COASTAL ATLANTIC NJ-COASTAL OCEAN NJ-CUMBERLAND NJ- DELAWARE PA-EASTERN MONMOUTH NJ-GLOUCESTER NJ-MERCER NJ-MONTGOMERY PA- NEW CASTLE DE-NORTHWESTERN BURLINGTON NJ-OCEAN NJ-PHILADELPHIA PA- SALEM NJ-SOUTHEASTERN BURLINGTON NJ-WESTERN MONMOUTH NJ- 1220 AM EDT THU JUL 2 2009 ...STRONG THUNDERSTORMS WILL AFFECT ATLANTIC...BUCKS...BURLINGTON... CAMDEN...CAPE MAY...CUMBERLAND...DELAWARE...GLOUCESTER...MERCER... MONMOUTH...MONTGOMERY...NEW CASTLE...OCEAN...PHILADELPHIA AND SALEM COUNTIES... AT 1214 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN AREA OF SCATTERED STRONG THUNDERSTORMS FROM NEAR ODESSA TO NEAR MILLVILLE...MOVING NORTHEAST AT 15 MPH. THESE THUNDERSTORMS WILL BE NEAR DELAWARE CITY...BEAR AROUND 1230 AM...NEW CASTLE... WILMINGTON MANOR AROUND 1245 AM...PENNSVILLE...WILMINGTON AROUND 100 AM...PENNS GROVE...CARNEYS POINT AROUND 115 AM...TRAINER AND MARCUS HOOK AROUND 130 AM. PLACES FURTHER NORTHEAST MAY BE AFFECTED AFTER 130 AM. VERY HEAVY RAIN WILL FALL FROM THIS STORM...AND WILL CAUSE WATER TO POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS. WIND GUSTS TO 40 MPH...SMALL HAIL AND FREQUENT...DANGEROUS CLOUD TO GROUND LIGHTNING ARE POSSIBLE WITH THE STRONGER STORMS. NIERENBERG
Special weather statement, Jul 2, 2:34 AM EDT, 1 hour 4 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 234 AM EDT THU JUL 2 2009 NJZ007>010-020730- HUNTERDON NJ-MORRIS NJ-SOMERSET NJ-WARREN NJ- 234 AM EDT THU JUL 2 2009 ...A STRONG THUNDERSTORM WILL AFFECT HUNTERDON...MORRIS...SOMERSET... AND WARREN COUNTIES... AT 230 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM ABOUT 15 MILES EAST OF EASTON...MOVING NORTHEAST AT 20 MPH. THE THUNDERSTORM WILL BE NEAR GLEN GARDNER AND WASHINGTON AROUND 240 AM...LEBANON AROUND 250 AM...CALIFON AROUND 255 AM...BEATTYESTOWN AROUND 305 AM...AND LONG VALLEY AROUND 315 AM. VERY HEAVY RAIN WILL FALL FROM THIS STORM...AND WILL CAUSE WATER TO POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS. WIND GUSTS TO 40 MPH ARE POSSIBLE WITH THIS STORM. EXPECT SMALL HAIL AND FREQUENT...DANGEROUS CLOUD TO GROUND LIGHTNING FROM THIS STORM. IF YOU HAPPEN TO BE OUTSIDE EARLY THIS MORNING AND ARE IN THE PATH OF THIS STORM...PLEASE MOVE INDOORS. MPD
Special weather statement, Jul 2, 3:31 AM EDT, 7 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 331 AM EDT THU JUL 2 2009 NJZ001-007>010-020830- HUNTERDON NJ-MORRIS NJ-SOMERSET NJ-SUSSEX NJ-WARREN NJ- 331 AM EDT THU JUL 2 2009 ...A STRONG THUNDERSTORM WILL AFFECT HUNTERDON...MORRIS...SOMERSET... SUSSEX AND WARREN COUNTIES... AT 327 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 13 MILES NORTHWEST OF SOMERVILLE...MOVING NORTHEAST AT 20 MPH. THE THUNDERSTORM WILL MOVE NEAR FAR HILLS... LONG VALLEY...PEAPACK AND GLADSTONE...BEATTYESTOWN...CHESTER... BERNARDSVILLE...HACKETTSTOWN...MENDHAM...SUCCASUNNA AND BUDD LAKE BY AROUND 415 AM. VERY HEAVY RAIN WILL FALL FROM THIS STORM...AND WILL CAUSE WATER TO POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS. EXPECT INTENSE LIGHTNING FROM THIS STORM. DO NOT SEEK SHELTER UNDER TREES WHEN LIGHTNING THREATENS...MOVE INDOORS WHEN A THUNDERSTORM APPROACHES. MPD
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 2, 4:50 AM EDT | Areal Flood Advisory | PHI | Morris | 3 hr |
| Jul 2, 7:01 AM EDT | Areal Flood Warning | PHI | Hunterdon, Somerset | 3 hr |
| Jul 2, 10:47 AM EDT | River Flood Warning | PHI | Hunterdon, Somerset | 2 hr |
| Jul 1, 10:51 PM EDT | Areal Flood Advisory | PHI | Berks | 3 hr |
| Jul 1, 11:55 PM EDT | Areal Flood Advisory | PHI | Berks, Bucks, Lehigh, Montgomery | 3 hr |
| Jul 2, 1:34 AM EDT | Areal Flood Advisory | PHI | Carbon | 3 hr |
Nearby
Areal Flood Advisories in New Jersey, 2009Every areal flood advisory in 2009
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.