Alert archive / New Jersey / Special Weather Statements in 2010

Special Weather Statement, NWS Philadelphia/Mount Holly

July 13, 2010Mercer County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Jul 13, 2010, 8:19 PM EDT for Mercer County, New Jersey. It was in force for 71 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 13, 2010, 8:19 PM EDT (00:19 UTC)
Expired
Jul 13, 2010, 9:30 PM EDT
In force
71 min
Issued by
NWS Philadelphia/Mount Holly

County Mercer County, NJ

The radar

The Philadelphia radar (KDIX), 54 km from the middle of the area, began a volume at 00:20 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, 0.3 hours before the alert went out and 183 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.

Skew-T log-pSkew-T log-p diagram, Brookhaven, NY at 00:00Z on 2010-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1359 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 00:00Z on 2010-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 72 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1359 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
466 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
72 m²/s²
0-3 km storm-relative helicity
94 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jul 13, 7:51 PM EDT, 28 minutes earlier.

Area forecast discussion, Jul 13, 7:51 PM EDT, 28 minutes before
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Hazardous weather outlook, Jul 13, 4:00 PM EDT, 4 hours 19 minutes before
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In the hours before

Special weather statement, Jul 13, 2:20 PM EDT, 5 hours 59 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
220 PM EDT TUE JUL 13 2010

NJZ013-014-131855-
EASTERN MONMOUTH NJ-WESTERN MONMOUTH NJ-
220 PM EDT TUE JUL 13 2010

...A STRONG THUNDERSTORM WILL AFFECT MONMOUTH COUNTY...

AT 218 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 12 MILES SOUTHWEST OF SANDY HOOK...MOVING
NORTHEAST AT 25 MPH. THE THUNDERSTORM WILL BE NEAR LEONARDO...
MIDDLETOWN AROUND 230 PM AND SANDY HOOK AROUND 245 PM.

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 NEAR 40 MPH AND OCCASIONAL CLOUD TO GROUND LIGHTNING
ARE POSSIBLE WITH THIS STORM.

LAT...LON 4017 7411 4034 7430 4045 7419 4045 7416
      4046 7412 4044 7409 4041 7399 4044 7402
      4047 7401 4047 7400 4043 7396 4029 7397

RPW
Special weather statement, Jul 13, 3:00 PM EDT, 5 hours 19 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
300 PM EDT TUE JUL 13 2010

NJZ015-019-PAZ069-132000-
BUCKS PA-MERCER NJ-NORTHWESTERN BURLINGTON NJ-
300 PM EDT TUE JUL 13 2010

...A STRONG THUNDERSTORM WILL AFFECT BUCKS...BURLINGTON AND MERCER
COUNTIES...

AT 300 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 12 MILES EAST OF PHILADELPHIA...MOVING NORTHEAST
AT 20 MPH. THE THUNDERSTORM WILL BE NEAR LEVITTOWN...BRISTOL AROUND
315 PM...TULLYTOWN...FAIRLESS HILLS AROUND 330 PM...TRENTON...
MORRISVILLE AROUND 345 PM...LAWRENCEVILLE AND EDINBURG AROUND 400 PM.

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 NEAR 40 MPH AND OCCASIONAL CLOUD TO GROUND LIGHTNING
ARE POSSIBLE WITH THIS STORM.

LAT...LON 3997 7491 4005 7499 4036 7476 4022 7454

RPW
Special weather statement, Jul 13, 4:16 PM EDT, 4 hours 3 minutes before
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Special weather statement, Jul 13, 4:53 PM EDT, 3 hours 26 minutes before
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Special weather statement, Jul 13, 8:19 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
819 PM EDT TUE JUL 13 2010

NJZ015-PAZ068-069-071-140130-
BUCKS PA-MERCER NJ-MONTGOMERY PA-PHILADELPHIA PA-
819 PM EDT TUE JUL 13 2010

...THUNDERSTORMS WILL AFFECT BUCKS...MERCER...MONTGOMERY AND
PHILADELPHIA COUNTIES...

AT 812 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 14 MILES WEST OF TRENTON...MOVING EAST NORTHEAST
AT 15 MPH. THE THUNDERSTORM WILL BE NEAR NEWTOWN...WOODBOURNE AROUND
830 PM...YARDLEY...WOODSIDE AROUND 845 PM...EWING AND LAWRENCEVILLE
AROUND 900 PM.

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 35 MPH, SMALL HAIL, AND DANGEROUS CLOUD TO GROUND
LIGHTNING ARE POSSIBLE WITH THIS STORM.

LAT...LON 4034 7486 4038 7474 4020 7460 4007 7505
      4026 7520

RPW

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 13, 11:08 PM EDTSpecial Weather StatementPHICumberland, Salem62 min
Jul 13, 11:37 PM EDTSpecial Weather StatementPHICape May53 min
Jul 13, 11:43 PM EDTSpecial Weather StatementPHICamden62 min
Jul 14, 12:08 AM EDTSpecial Weather StatementPHIAtlantic, Cape May67 min
Jul 14, 2:40 AM EDTAreal Flood AdvisoryPHICumberland, Gloucester, Salem3 hr
Jul 14, 3:21 AM EDTSpecial Marine WarningPHI39 min
Jul 14, 3:27 AM EDTAreal Flood AdvisoryPHIWarren3 hr
Jul 14, 3:37 AM EDTSmall Craft Advisory for Hazardous SeasPHI16 hr
Jul 14, 3:46 AM EDTFlash Flood WarningPHIBurlington, Camden, Gloucester3 hr
Jul 14, 3:49 AM EDTSpecial Weather StatementPHIMorris56 min
Jul 14, 3:59 AM EDTAreal Flood AdvisoryPHIMercer3 hr
Jul 14, 4:08 AM EDTSpecial Marine WarningPHI67 min
Jul 14, 4:10 AM EDTSpecial Weather StatementPHIAtlantic, Burlington, Camden, Cumberland, Gloucester, Salem65 min
Jul 14, 4:51 AM EDTSpecial Weather StatementPHIOcean54 min
Jul 14, 5:26 AM EDTSpecial Weather StatementPHIOcean64 min
Jul 14, 6:06 AM EDTAreal Flood AdvisoryPHISussex, Warren4 hr
Jul 14, 10:15 AM EDTFlash Flood WatchPHIBurlington, Camden, Gloucester, Hunterdon, Mercer, Middlesex and 4 more9 hr
Jul 14, 10:26 AM EDTAreal Flood AdvisoryPHIMorris, Somerset3 hr
Jul 14, 10:56 AM EDTAreal Flood AdvisoryPHIHunterdon, Morris, Somerset, Sussex, Warren4 hr
Jul 14, 12:47 PM EDTAreal Flood AdvisoryPHIAtlantic, Camden, Cape May, Cumberland, Gloucester, Salem3 hr
Jul 14, 1:35 PM EDTAreal Flood AdvisoryPHIBurlington, Camden, Gloucester115 min
Jul 14, 2:11 PM EDTFlash Flood WarningPHIBurlington, Camden, Gloucester, Salem109 min
Jul 14, 2:36 PM EDTAreal Flood AdvisoryPHIAtlantic, Burlington, Camden, Mercer, Middlesex, Monmouth and 2 more3 hr
Jul 14, 3:12 PM EDTFlash Flood WarningPHIBurlington, Mercer, Monmouth, Ocean63 min
Jul 14, 4:03 PM EDTAreal Flood WarningPHIBurlington, Camden, Gloucester, Salem79 min
Jul 14, 7:58 PM EDTSpecial Weather StatementPHIMercer62 min
Jul 14, 1:29 AM EDTAreal Flood AdvisoryPHIBerks3 hr
Jul 14, 1:44 AM EDTSpecial Weather StatementPHIChester61 min
Jul 14, 2:32 AM EDTFlash Flood WarningPHIChester3 hr
Jul 14, 2:52 AM EDTFlash Flood WarningPHIDelaware3 hr
Jul 14, 3:52 AM EDTSpecial Weather StatementPHICarbon53 min
Jul 14, 3:58 AM EDTAreal Flood AdvisoryPHIBucks, Montgomery3 hr
Jul 14, 10:04 AM EDTAreal Flood AdvisoryPHIBerks3 hr
Jul 14, 11:11 AM EDTFlash Flood WarningPHIBerks3 hr
Jul 14, 12:52 PM EDTAreal Flood AdvisoryPHIChester, Delaware3 hr
Jul 13, 9:21 PM EDTSevere Thunderstorm WarningPHIKent, Queen Anne's, Talbot64 min
Jul 13, 9:41 PM EDTSevere Thunderstorm WarningPHICaroline, Queen Anne's, Talbot64 min
Jul 13, 9:52 PM EDTSpecial Weather StatementPHICecil68 min
Jul 14, 1:07 AM EDTSpecial Weather StatementPHITalbot83 min
Jul 14, 2:58 AM EDTSpecial Weather StatementPHICaroline, Kent, Queen Anne's62 min
Jul 13, 10:22 PM EDTSpecial Weather StatementPHIKent, Sussex63 min

Nearby

Special Weather Statements in New Jersey, 2010Every special weather statement in 2010

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.