Alert archive / New Jersey / Areal Flood Advisories in 2008
Areal Flood Advisory 23, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this areal flood advisory at Aug 10, 2008, 6:45 PM EDT for Camden County, Gloucester County, Salem County, New Jersey; Philadelphia County, Pennsylvania. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- Aug 10, 2008, 6:45 PM EDT (22:45 UTC)
- Expired
- Aug 10, 2008, 8:45 PM EDT
- In force
- 2 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Camden County, NJ, Gloucester County, NJ, Salem County, NJ, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 66 km from the middle of the area, began a volume at 22:48 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
Wallops Is Stn, VA (KWAL), launched 12:00Z, 10.8 hours before the alert went out and 206 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
- 2296 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 709 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 123 m²/s²
- 0-3 km storm-relative helicity
- 130 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 4.9
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 Aug 10, 4:20 PM EDT, 2 hours 25 minutes earlier.
Area forecast discussion, Aug 10, 4:20 PM EDT, 2 hours 25 minutes before
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</html>Hazardous weather outlook, Aug 10, 3:30 PM EDT, 3 hours 15 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 330 PM EDT SUN AUG 10 2008 DEZ001>004-MDZ008-012-015-019-020-NJZ001-007>010-012>027-PAZ054-055- 060>062-067>071-111100- NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD- QUEEN ANNES-TALBOT-CAROLINE-SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET- MIDDLESEX-WESTERN MONMOUTH-EASTERN MONMOUTH-MERCER-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 PM EDT SUN AUG 10 2008 ...SEVERE THUNDERSTORM WATCH 817 IN EFFECT UNTIL 7 PM EDT THIS EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR PARTS OF EASTERN PENNSYLVANIA AND NEW JERSEY, DELAWARE AND NORTHEASTERN MARYLAND. .DAY ONE...THIS AFTERNOON AND TONIGHT PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. SEVERE THUNDERSTORM WATCH. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS IN EFFECT. ANZ430-431-450>455-111100- 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 SANDY HOOK TO MANASQUAN INLET NJ OUT 20 NM- 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 PM EDT SUN AUG 10 2008 ...SEVERE THUNDERSTORM WATCH 817 IN EFFECT UNTIL 7 PM EDT THIS EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE COASTAL WATERS OF NEW JERSEY AND DELAWARE AND FOR DELAWARE BAY. .DAY ONE...THIS AFTERNOON AND TONIGHT PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. SEVERE THUNDERSTORM WATCH. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS IN EFFECT.
In the hours before
Local storm report, Aug 10, 2:49 PM EDT, 3 hours 56 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
249 PM EDT SUN AUG 10 2008
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0958 AM HAIL RIO GRANDE 39.02N 74.88W
08/10/2008 E0.75 INCH CAPE MAY NJ TRAINED SPOTTER
1000 AM HAIL GREEN CREEK 39.05N 74.90W
08/10/2008 E0.25 INCH CAPE MAY NJ TRAINED SPOTTER
1040 AM HAIL WILMINGTON MANOR 39.69N 75.58W
08/10/2008 E1.00 INCH NEW CASTLE DE TRAINED SPOTTER
1103 AM HAIL 2 SE COATESVILLE 39.96N 75.79W
08/10/2008 E0.88 INCH CHESTER PA TRAINED SPOTTER
1110 AM HAIL 2 SE EXTON 40.01N 75.60W
08/10/2008 E1.75 INCH CHESTER PA TRAINED SPOTTER
1110 AM HAIL CLAYTON 39.66N 75.08W
08/10/2008 E0.88 INCH GLOUCESTER NJ TRAINED SPOTTER
1114 AM HAIL GLASSBORO 39.70N 75.11W
08/10/2008 E0.50 INCH GLOUCESTER NJ TRAINED SPOTTER
1115 AM HAIL EXTON 40.03N 75.63W
08/10/2008 E0.88 INCH CHESTER PA NWS EMPLOYEE
1115 AM HAIL WEST CHESTER 39.96N 75.61W
08/10/2008 E2.00 INCH CHESTER PA OFFICIAL NWS OBS
1117 AM HAIL 1 NE GLASSBORO 39.71N 75.10W
08/10/2008 E0.50 INCH GLOUCESTER NJ TRAINED SPOTTER
1126 AM HAIL 2 E PITMAN 39.73N 75.09W
08/10/2008 E1.00 INCH GLOUCESTER NJ TRAINED SPOTTER
1134 AM HAIL PITMAN 39.73N 75.13W
08/10/2008 E1.00 INCH GLOUCESTER NJ TRAINED SPOTTER
1142 AM HAIL 4 S BERLIN 39.74N 74.94W
08/10/2008 E1.00 INCH CAMDEN NJ TRAINED SPOTTER
1147 AM HAIL 5 W PHOENIXVILLE 40.14N 75.61W
08/10/2008 E0.25 INCH CHESTER PA TRAINED SPOTTER
1205 PM HAIL 3 N POTTSTOWN 40.29N 75.64W
08/10/2008 E0.25 INCH MONTGOMERY PA TRAINED SPOTTER
1208 PM FUNNEL CLOUD MILLSBORO 38.59N 75.29W
08/10/2008 SUSSEX DE TRAINED SPOTTER
1220 PM HAIL REHOBOTH BEACH 38.72N 75.08W
08/10/2008 E0.25 INCH SUSSEX DE TRAINED SPOTTER
1220 PM HAIL CAMDEN 39.94N 75.11W
08/10/2008 E0.25 INCH CAMDEN NJ TRAINED SPOTTER
1220 PM HAIL N HAMMONTON 39.65N 74.77W
08/10/2008 E1.00 INCH ATLANTIC NJ TRAINED SPOTTER
1225 PM HAIL 3 S READING 40.30N 75.93W
08/10/2008 E0.25 INCH BERKS PA TRAINED SPOTTER
1227 PM HAIL REHOBOTH BEACH 38.72N 75.08W
08/10/2008 E0.88 INCH SUSSEX DE TRAINED SPOTTER
1230 PM HAIL HAMMONTON 39.65N 74.77W
08/10/2008 E1.50 INCH ATLANTIC NJ TRAINED SPOTTER
1234 PM HAIL MARCUS HOOK 39.81N 75.42W
08/10/2008 E1.00 INCH DELAWARE PA TRAINED SPOTTER
1235 PM HAIL PENNS GROVE 39.73N 75.47W
08/10/2008 E1.25 INCH SALEM NJ TRAINED SPOTTER
1235 PM FUNNEL CLOUD PENNS GROVE 39.73N 75.47W
08/10/2008 SALEM NJ TRAINED SPOTTER
1235 PM HAIL EAST GREENVILLE 40.41N 75.51W
08/10/2008 E0.88 INCH MONTGOMERY PA TRAINED SPOTTER
1235 PM HAIL 2 NW POTTSTOWN 40.27N 75.67W
08/10/2008 E0.25 INCH MONTGOMERY PA TRAINED SPOTTER
1255 PM LIGHTNING WEST CHESTER 39.96N 75.61W
08/10/2008 CHESTER PA TRAINED SPOTTER
LARGE TREE DOWN
0100 PM HAIL NORTH CAPE MAY 38.98N 74.95W
08/10/2008 E0.50 INCH CAPE MAY NJ TRAINED SPOTTER
0103 PM HAIL ERMA 39.00N 74.89W
08/10/2008 E1.75 INCH CAPE MAY NJ TRAINED SPOTTER
0103 PM HAIL BEERSVILLE 40.75N 75.47W
08/10/2008 E0.25 INCH NORTHAMPTON PA TRAINED SPOTTER
0103 PM HAIL ERMA 39.00N 74.89W
08/10/2008 E1.00 INCH CAPE MAY NJ TRAINED SPOTTER
0105 PM HAIL RIO GRANDE 39.02N 74.88W
08/10/2008 E0.75 INCH CAPE MAY NJ TRAINED SPOTTER
0110 PM HAIL GREEN CREEK 39.05N 74.90W
08/10/2008 E1.00 INCH CAPE MAY NJ TRAINED SPOTTER
0110 PM HAIL LEHIGH UNIVERSITY 40.61N 75.38W
08/10/2008 E0.50 INCH NORTHAMPTON PA TRAINED SPOTTER
0130 PM HAIL WOODBINE 39.23N 74.81W
08/10/2008 E0.88 INCH CAPE MAY NJ TRAINED SPOTTER
0130 PM HAIL 3 NNE ELMER 39.63N 75.16W
08/10/2008 E1.25 INCH SALEM NJ TRAINED SPOTTER
0140 PM HAIL 4 W TURNERSVILLE 39.77N 75.14W
08/10/2008 E0.50 INCH GLOUCESTER NJ TRAINED SPOTTER
0140 PM HAIL FLEETWOOD 40.46N 75.82W
08/10/2008 E1.50 INCH BERKS PA COUNTY OFFICIAL
1.25 TO 1.50 INCH HAIL COVERING THE GROUND
0140 PM HAIL WASHINGTON TOWNSHIP 40.99N 74.07W
08/10/2008 E0.50 INCH BERGEN NJ COUNTY OFFICIAL
0140 PM HAIL N MULLICA HILL 39.74N 75.22W
08/10/2008 E0.75 INCH GLOUCESTER NJ TRAINED SPOTTER
0145 PM HAIL 4 W TURNERSVILLE 39.77N 75.14W
08/10/2008 E1.00 INCH GLOUCESTER NJ TRAINED SPOTTER
0150 PM HAIL BELTZVILLE STATE PARK 40.87N 75.61W
08/10/2008 E0.88 INCH CARBON PA COUNTY OFFICIAL
0156 PM HAIL 3 W ELVERSON 40.16N 75.89W
08/10/2008 E0.88 INCH BERKS PA TRAINED SPOTTER
0156 PM HAIL MANAHAWKIN 39.70N 74.25W
08/10/2008 E1.00 INCH OCEAN NJ TRAINED SPOTTER
0156 PM HAIL 6 ENE ELMER 39.62N 75.08W
08/10/2008 E0.88 INCH GLOUCESTER NJ TRAINED SPOTTER
0156 PM HAIL SOMERDALE 39.85N 75.02W
08/10/2008 E0.50 INCH CAMDEN NJ TRAINED SPOTTER
0156 PM HAIL ALBRIGHTSVILLE 41.01N 75.60W
08/10/2008 E0.25 INCH CARBON PA COUNTY OFFICIAL
0156 PM HAIL 6 ENE ELMER 39.62N 75.08W
08/10/2008 E0.25 INCH GLOUCESTER NJ TRAINED SPOTTER
0157 PM HAIL 2 NW NEWFIELD 39.57N 75.05W
08/10/2008 E0.25 INCH GLOUCESTER NJ TRAINED SPOTTER
0158 PM HAIL N TURNERSVILLE 39.77N 75.06W
08/10/2008 E0.88 INCH GLOUCESTER NJ TRAINED SPOTTER
&&
BCLocal storm report, Aug 10, 4:37 PM EDT, 2 hours 8 minutes before
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</html>Special weather statement, Aug 10, 4:47 PM EDT, 1 hour 58 minutes before
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</html>Local storm report, Aug 10, 4:58 PM EDT, 1 hour 47 minutes before
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</html>Local storm report, Aug 10, 5:45 PM EDT, 1 hour before
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</html>Special weather statement, Aug 10, 6:26 PM EDT, 19 minutes before
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</html>The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 10, 9:48 AM EDT | Special Marine Warning | PHI | 57 min | |
| Aug 10, 9:55 AM EDT | Severe Thunderstorm Warning | PHI | Cape May | 46 min |
| Aug 10, 10:11 AM EDT | Severe Thunderstorm Warning | PHI | Salem | 64 min |
| Aug 10, 10:39 AM EDT | Severe Thunderstorm Warning | PHI | Gloucester | 66 min |
| Aug 10, 11:17 AM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester | 58 min |
| Aug 10, 11:32 AM EDT | Areal Flood Advisory | PHI | Camden, Gloucester | 3 hr |
| Aug 10, 11:46 AM EDT | Severe Thunderstorm Warning | PHI | Gloucester, Salem | 59 min |
| Aug 10, 11:55 AM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Gloucester | 65 min |
| Aug 10, 11:56 AM EDT | Flash Flood Warning | PHI | Camden, Gloucester | 4 hr |
| Aug 10, 12:05 PM EDT | Special Marine Warning | PHI | 55 min | |
| Aug 10, 12:09 PM EDT | Tornado Warning | PHI | Gloucester, Salem | 36 min |
| Aug 10, 12:40 PM EDT | Severe Thunderstorm Warning | PHI | Camden, Gloucester, Salem | 95 min |
| Aug 10, 12:45 PM EDT | Severe Thunderstorm Warning | PHI | Cape May | 60 min |
| Aug 10, 12:51 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Gloucester, Ocean | 84 min |
| Aug 10, 12:56 PM EDT | Tornado Warning | PHI | Gloucester, Salem | 34 min |
| Aug 10, 1:05 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Warren | 115 min |
| Aug 10, 1:22 PM EDT | Flash Flood Warning | PHI | Gloucester, Salem | 3 hr |
| Aug 10, 1:29 PM EDT | Tornado Warning | PHI | Camden, Gloucester, Salem | 28 min |
| Aug 10, 1:53 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Cumberland, Gloucester, Salem | 67 min |
| Aug 10, 2:10 PM EDT | Severe Thunderstorm Warning | PHI | Ocean | 50 min |
| Aug 10, 2:23 PM EDT | Special Marine Warning | PHI | 67 min | |
| Aug 10, 2:36 PM EDT | Special Marine Warning | PHI | 54 min | |
| Aug 10, 2:50 PM EDT | Severe Thunderstorm Warning | PHI | Burlington | 55 min |
| Aug 10, 3:33 PM EDT | Severe Thunderstorm Warning | PHI | Camden, Gloucester, Salem | 39 min |
| Aug 10, 3:44 PM EDT | Special Marine Warning | PHI | 61 min | |
| Aug 10, 3:46 PM EDT | Severe Thunderstorm Warning | PHI | Ocean | 24 min |
| Aug 10, 4:10 PM EDT | Areal Flood Warning | PHI | Atlantic, Burlington, Camden, Gloucester, Ocean, Salem | 3 hr |
| Aug 10, 6:36 PM EDT | Severe Thunderstorm Warning | PHI | Camden, Gloucester, Salem | 69 min |
| Aug 10, 7:04 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cape May | 56 min |
| Aug 10, 7:09 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Salem | 66 min |
| Aug 10, 7:15 PM EDT | Special Marine Warning | PHI | 60 min | |
| Aug 10, 7:42 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland | 56 min |
| Aug 10, 7:45 PM EDT | Special Marine Warning | PHI | 60 min | |
| Aug 10, 7:53 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Gloucester | 67 min |
| Aug 10, 10:18 AM EDT | Severe Thunderstorm Warning | PHI | Chester | 57 min |
| Aug 10, 10:44 AM EDT | Severe Thunderstorm Warning | PHI | Delaware | 61 min |
| Aug 10, 11:09 AM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 66 min |
| Aug 10, 12:17 PM EDT | Flash Flood Warning | PHI | Chester, Delaware, Montgomery | 4 hr |
| Aug 10, 12:21 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Lehigh, Montgomery | 84 min |
| Aug 10, 1:10 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Montgomery | 65 min |
| Aug 10, 1:47 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Montgomery | 58 min |
| Aug 10, 3:05 PM EDT | Flash Flood Warning | PHI | Chester | 3 hr |
| Aug 10, 3:35 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 40 min |
| Aug 10, 4:45 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 75 min |
| Aug 10, 5:25 PM EDT | Areal Flood Advisory | PHI | Berks, Montgomery | 110 min |
| Aug 10, 5:45 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware | 75 min |
| Aug 10, 5:59 PM EDT | Areal Flood Advisory | PHI | Chester, Delaware | 2 hr |
| Aug 10, 6:14 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent | 61 min |
Nearby
Areal Flood Advisories in New Jersey, 2008Areal Flood Advisories in Pennsylvania, 2008Every areal flood advisory 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.