Alert archive / New Jersey / Special Marine Warnings in 2012

Special Marine Warning 70, NWS Philadelphia/Mount Holly

July 19, 2012

NWS Philadelphia/Mount Holly issued this special marine warning at Jul 19, 2012, 3:16 PM EDT. It was in force for 30 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 19, 2012, 3:16 PM EDT (19:16 UTC)
Expired
Jul 19, 2012, 3:46 PM EDT
In force
30 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

The radar

The Dover AFB radar (KDOX), 62 km from the middle of the area, began a volume at 19:16 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

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 7.3 hours before the alert went out and 72 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, Phillips Aaf/Abe, MD at 12:00Z on 2012-07-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 137 joules per kilogram.LCLLFCEL10008507005003002001001 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, Phillips Aaf/Abe, MD at 12:00Z on 2012-07-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 53 square meters per square second.1939Sfc1 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
137 J/kg
Mixed-layer CIN
-137 J/kg
Mixed-layer LCL
1167 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
53 m²/s²
0-3 km storm-relative helicity
86 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

712 
WHUS51 KPHI 191916
SMWPHI
ANZ430-192015-
/O.NEW.KPHI.MA.W.0070.120719T1916Z-120719T2015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
316 PM EDT THU JUL 19 2012

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SPECIAL MARINE WARNING FOR...
  THE DELAWARE BAY NORTH OF A LINE BETWEEN EAST POINT NJ AND
  SLAUGHTER BEACH DE...


  INCLUDING REEDY POINT...WOODLAND BEACH...SEA BREEZE...SHIP JOHN
  SHOAL LIGHT AND STONY POINT...

* UNTIL 415 PM EDT

* AT 312 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  THUNDERSTORM...PRODUCING STRONG WINDS 34 KNOTS OR GREATER OVER
  REEDY POINT...MOVING SOUTHEAST AT 15 KNOTS.

* THIS STRONG THUNDERSTORM WILL BE NEAR
  OVER STONY POINT BY 330 PM EDT
  4 NM NORTHEAST OF WOODLAND BEACH BY 355 PM EDT
  2 NM NORTHEAST OF SHIP JOHN SHOAL LIGHT BY 410 PM EDT
  OVER SEA BREEZE BY 415 PM EDT

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MARINERS CAN EXPECT GUSTY WINDS...HIGH WAVES...DANGEROUS LIGHTNING...
AND HEAVY RAINS. BOATERS SHOULD SEEK SAFE HARBOR IMMEDIATELY...UNTIL
THIS STORM PASSES.

IF CAUGHT ON THE OPEN WATER STAY BELOW DECK IF POSSIBLE...KEEP AWAY 
FROM UNGROUNDED METAL OBJECTS.

&&

LAT...LON 3962 7559 3963 7558 3957 7548 3950 7553
      3954 7543 3948 7555 3945 7542 3939 7542
      3946 7538 3936 7539 3939 7521 3937 7528
      3933 7527 3937 7534 3932 7529 3921 7544
      3925 7548 3926 7542 3945 7561
TIME...MOT...LOC 1916Z 313DEG 15KT 3950 7557

$$

MPD
1 follow-up statement
323 
FZUS71 KPHI 191946
MWSPHI

MARINE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
346 PM EDT THU JUL 19 2012

ANZ430-191954-
/O.CAN.KPHI.MA.W.0070.000000T0000Z-120719T2015Z/
346 PM EDT THU JUL 19 2012

...SPECIAL MARINE WARNING CANCELLED...

THE STORM NEAR THE MOUTH OF THE DELAWARE RIVER NO LONGER WAS 
GENERATING WIND GUSTS OF 34 KNOTS OR GREATER...BUT IT CONTINUED TO 
GENERATE DANGEROUS CLOUD TO SURFACE LIGHTNING AS IT MOVED SOUTHEAST 
INTO UPPER DELAWARE BAY. IF YOU ARE CAUGHT OUT OVER THE OPEN 
WATER...PLEASE GO BELOW DECK AND KEEP AWAY FROM UNGROUNDED METAL 
OBJECTS. 

THE AFFECTED AREA WAS...
DELAWARE BAY WATERS NORTH OF EAST POINT NJ TO SLAUGHTER BEACH DE OVER
ATLANTIC COASTAL WATERS...
INCLUDING REEDY POINT...WOODLAND BEACH...SEA BREEZE...SHIP JOHN SHOAL
LIGHT AND STONY POINT...

LAT...LON 3962 7559 3963 7558 3957 7548 3950 7553
      3954 7543 3948 7555 3945 7542 3939 7542
      3946 7538 3936 7539 3939 7521 3937 7528
      3933 7527 3937 7534 3932 7529 3921 7544
      3925 7548 3926 7542 3945 7561
TIME...MOT...LOC 1944Z 313DEG 15KT 3942 7546

$$

MPD

What forecasters said that day

The local office's own words before this special marine warning 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 marine warning went out at Jul 19, 10:26 AM EDT, 4 hours 50 minutes earlier.

Area forecast discussion, Jul 19, 10:26 AM EDT, 4 hours 50 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1026 AM EDT THU JUL 19 2012

.SYNOPSIS...
A COLD FRONT WILL SLOWLY CROSS THE REGION THROUGH TONIGHT AND
STALL SOUTH OF THE AREA ON FRIDAY. LOW PRESSURE WILL DEVELOP ALONG
THE FRONT ON FRIDAY AND MOVE EASTWARD THROUGH SATURDAY. HIGH
PRESSURE WILL THEN PUSH IN FROM THE EAST SATURDAY THROUGH SUNDAY.
A WEAK COLD FRONT WILL MOVE INTO THE AREA ON MONDAY AND REMAIN
NEARBY THROUGH TUESDAY. HIGH PRESSURE WILL RETURN AROUND MIDWEEK.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
SCATTERED SHOWERS CONTINUE TO DEVELOP THIS MORNING AS SEVERAL WEAK
AREAS OF VORTICITY MOVE THROUGH; ONE ACROSS THE SOUTHERN AREAS,
AND ONE MOVING INTO THE NORTHERN AREAS. THESE TWO AREAS WILL
LIKELY MOVE THROUGH RATHER QUICKLY, BEFORE ADDITIONAL SHOWERS AND
THUNDERSTORMS DEVELOP LATER IN THE DAY.

THE FRONTAL BOUNDARY SHOULD REMAIN DIFFICULT TO FIND THROUGH MUCH
OF THE DAY. HOWEVER, IT IS EXPECTED TO BE STALLED ACROSS OUR
SOUTHERN COUNTIES OR AT LEAST IN THEIR VICINITY. ANOTHER IMPULSE
IN THE MID LEVEL FLOW IS EXPECTED TO PASS OVERHEAD FROM WEST TO
EAST DURING THE AFTERNOON. IT IS FORECAST TO SPREAD SHOWERS AND
SCATTERED THUNDERSTORMS INTO OUR REGION FROM THE SOUTHWEST DURING
THE LATE MORNING AND AFTERNOON HOURS. WE WILL INDICATE AN
INCREASING CHANCE OF PRECIPITATION FROM SOUTHWEST TO NORTHEAST AS
THE DAY PROGRESSES. WITH PRECIPITABLE WATER VALUES IN EXCESS OF 2
INCHES, ESPECIALLY FROM THE PHILADELPHIA METROPOLITAN AREA EAST
AND SOUTHWARD, LOCALLY HEAVY DOWNPOURS ARE POSSIBLE AS THE DAY
PROGRESSES.

WITH A WARM START TO THE DAY AND AT LEAST A LITTLE SUNSHINE
ANTICIPATED, TEMPERATURES SHOULD RISE INTO THE LOWER 90S FROM
PHILADELPHIA SOUTHWARD. TO THE NORTH OF THE CITY, HIGH
TEMPERATURES ARE FORECAST TO BE MAINLY IN THE UPPER 80S TO NEAR 90
DEGREES. READINGS SHOULD REACH ONLY THE LOWER AND MIDDLE 80S IN
THE ELEVATED TERRAIN. DEW POINT VALUES ARE FORECAST TO BE MAINLY
IN THE UPPER 60S AND LOWER 70S. AS A RESULT, THE HEAT INDEX IS
ANTICIPATED TO REACH THE MIDDLE AND UPPER 90S AROUND PHILADELPHIA
AND AT LOCATIONS TO THE SOUTH. WHILE THOSE VALUES ARE BELOW THE
CRITERIA FOR AN EXCESSIVE HEAT WARNING OR A HEAT ADVISORY, IT WILL
REMAIN RATHER UNCOMFORTABLE TODAY.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH 6 AM FRIDAY/...
FOR TONIGHT, WE WILL CARRY A LIKELY PROBABILITY FOR
PRECIPITATION. WHILE THE DETAILS REGARDING THE TIMING AND LOCATION
OF THE SURFACE FRONT, ANY SURFACE WAVE AND ANY MID LEVEL IMPULSE
REMAINS UNCERTAIN, THE TREND TOWARD THERE BEING SOME IMPACT ON OUR
REGION CONTINUES. PRECIPITABLE WATER VALUES WILL STAY ABOVE 2
INCHES OVER MUCH OF OUR REGION, SO LOCALLY HEAVY DOWNPOURS REMAIN
POSSIBLE.

WITH THE SURFACE FLOW BEING OFF THE OCEAN, CONDITIONS AT THE
SURFACE SHOULD BECOME FAIRLY STABLE, ESPECIALLY IN OUR NORTHERN
AND CENTRAL COUNTIES. THERE MAY BE SOME SURFACE BASED INSTABILITY
IN THE SOUTH. NEVERTHELESS, SOME ELEVATED INSTABILITY ALONG WITH
THE CONTRIBUTION OF ANY MID LEVEL IMPULSE WILL LIKELY RESULT IN
SCATTERED THUNDER ALONG WITH THE WIDESPREAD RAIN SHOWER ACTIVITY.

IT SHOULD STAY WARM AND MUGGY FOR TONIGHT AS THE SURFACE BOUNDARY
REMAINS IN OR NEAR OUR REGION. LOW TEMPERATURES ARE FORECAST TO BE
MAINLY IN THE LOWER AND MIDDLE 70S WITH SOME READINGS IN THE
MIDDLE AND UPPER 60S IN THE NORTH.

&&

.LONG TERM /FRIDAY THROUGH WEDNESDAY/...
A FRONTAL BOUNDARY WILL BE STALLED TO OUR SOUTH ON FRIDAY AND A
WAVE OF LOW PRESSURE WILL MOVE ALONG THIS FRONT. AS IT DOES,
SHOWERS AND TSTMS ARE EXPECTED, WITH THE BEST CHCS AND HIGHEST QPF
CLOSEST TO THE FRONT, IN SRN PORTIONS OF THE AREA.

THE LOW WILL MOVE OFF THE COAST FRIDAY NIGHT INTO SATURDAY AS
HIGH PRESSURE BUILDS DOWN FROM CANADA. PRECIP WILL GRADUALLY END
FROM N TO SOUTH FRIDAY NIGHT INTO EARLY SATURDAY BUT MAY TAKE MOST
OF SATURDAY FOR SRN AREAS TO COMPLETELY BE PRECIP FREE. THEN
SUNDAY LOOKS TO BE A DRY DAY AS THE HIGH BUILDS TO THE NE. QPF
VALUES WILL VARY FROM AROUND AN INCH ACRS THE S TO AROUND A HALF
INCH CENTRAL AREAS AND LESS UP NORTH.

A WK CDFNT WILL APPROACH THE REGION FROM THE NW ON MONDAY AND
CROSS THE AREA MONDAY NIGHT INTO TUESDAY, BRINGING A RENEWED
THREAT OF SHOWERS AND TSTMS.

HIGH PRESSURE THEN BUILDS BACK IN FOR WEDNESDAY AND THURSDAY
BRINGING DRY WX.

TEMPS WILL START OFF COOLER THAN NORMAL ON FRIDAY. (THERE'S A
CHANGE!) GUIDANCE HAS BEEN RUNNING A TAD COOL OF LATE. IF WE SEE
ANY SUNSHINE AT ALL ON FRIDAY WE WILL BE HARD PRESSED TO KEEP
TEMPS BELOW 80 DEGREES AS THE GUID CONTINUES TO ADVERTISE, SO HAVE
BUMPED THEM UP A FEW DEGREES. GUID IS ABOUT THE SAME ON SATURDAY
WHICH IS A BIT PUZZLING AS THERE SHOULD BE MORE SUNSHINE SO HAVE
TWEAKED THOSE UPWARD AS WELL. THE GUID APPEARS TO BE REACTING TO
THE AFFECTS OF THE ELY/NELY FLOW AND IT WILL BE INTERESTING TO SEE
WHAT WINS OUT HERE. TEMPS REBOUND ON SUNDAY AND INTO NEXT WEEK BUT
REMAIN AT OR SLIGHTLY ABOVE SEASONAL VALUES.

&&

.AVIATION /14Z THURSDAY THROUGH MONDAY/...
THE FOLLOWING DISCUSSION IS FOR KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY AND SURROUNDING AREAS.

WITH THE EAST-NORTHEASTERLY FLOW ACROSS MUCH OF THE REGION, SOME
MVFR CIGS HAVE DEVELOPED ACROSS A PORTION OF THE AREA. THE
QUESTION IS HOW FAR WEST IT PUSHES. WE WILL LIKELY HAVE TO AMEND
TAFS OVER THE NEXT COUPLE OF HOURS TO BRING IN THE MVFR CIGS.
HOWEVER, AS THE DAY PROGRESSES AND THE AIR HEATS UP AND MIXES OUT,
WE CURRENTLY ARE NOT EXPECTING THEM TO LAST VERY LONG.

SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS ARE EXPECTED TO
BUILD INTO THE TAF SITES FROM THE SOUTHWEST DURING THE LATE
MORNING AND AFTERNOON HOURS. THEY COULD BRIEFLY IMPACT THE
VISIBILITY AND CEILING VALUES AT SOME OF OUR TAF SITES. HOWEVER,
THE TIMING AND LOCATION OF ANY SHOWERS AND THUNDERSTORMS REMAINS
UNCERTAIN SO WE DID NOT INCLUDE ANY MVFR OR IFR CONDITIONS OR ANY
MENTION OF THUNDER IN THE TAFS FOR NOW, AT LEAST FOR THE DAYLIGHT
PERIOD.

FOR TONIGHT, DETERIORATING CONDITIONS ARE ANTICIPATED. SHOWERS
AND SCATTERED THUNDERSTORMS WILL CONTINUE TO BUILD INTO OUR REGION
FROM THE WEST AND SOUTHWEST. MVFR AND POSSIBLY IFR CONDITIONS ARE
ANTICIPATED.

AN EASTERLY WIND WILL DEVELOP FOR TODAY AND CONTINUE INTO
TONIGHT. SPEEDS SHOULD BE MAINLY IN THE 5 TO 10 KNOT RANGE.

OUTLOOK...
FRIDAY AND FRIDAY NIGHT...EXPECT PROLONGED MVFR AND EVEN IFR AS
SHOWERS AND TSTMS IMPACT THE REGION AS A WAVE OF LOW PRESSURE
MOVES BY TO THE S. THE WORST IMPACTS WOULD BE OVER SRN AREAS.

SATURDAY...CONDS WILL GRADUALLY IMPROVE FROM N TO S ON SATURDAY
AND COULD BE VFR EVERYWHERE BY LATER SATURDAY. THERE COULD STILL
BE SOME LINGERING SHRA OR TSRA MAINLY ACRS THE S.

SATURDAY NIGHT AND SUNDAY...VFR CONDITIONS EXPECTED.

&&

.MARINE...
A FRONTAL BOUNDARY FROM THE NORTH HAS DROPPED INTO OUR REGION. IT
WILL REMAIN NEARLY STATIONARY INTO TONIGHT. WAVES OF LOW PRESSURE
ARE EXPECTED TO MOVE ALONG THE BOUNDARY FROM WEST TO EAST. AN
EASTERLY FLOW IS FORECAST TO DEVELOP OVER THE COASTAL WATERS OF
NEW JERSEY. AN EAST TO SOUTH FLOW IS ANTICIPATED FOR THE COASTAL
WATERS OF DELAWARE. WIND SPEEDS AND WAVE HEIGHTS ARE EXPECTED TO
REMAIN BELOW THE SMALL CRAFT ADVISORY CRITERIA DURING TODAY AND
TONIGHT.

OUTLOOK...
AN EASTERLY FLOW DEVELOPS ACROSS THE AREA WATERS ON FRIDAY AND
SEAS WILL BEGIN TO RISE. SEAS WILL RISE TO AROUND 5 FEET BY FRIDAY
MORNING ACRS THE NRN WATERS AND LATER FRIDAY ACRS THE SRN WATERS
AND REMAIN ABOVE 5 FEET THROUGH AT SATURDAY. THE EASTERLY FLOW
WILL STRENGTHEN AS THE PRESSURE GRADIENT TIGHTENS BETWEEN A WAVE
OF LOW PRESSURE MOVING ACROSS A STALLED FRONT ACROSS THE S AND
HIGH PRESSURE BUILDING IN TO THE N. A SCA WILL LIKELY BE NEEDED
FOR A PORTION OF THE FRIDAY TO SATURDAY PERIOD. WINDS WILL BECOME
GUSTY, ESPECIALLY ACROSS THE NORTHERN WATERS, FRIDAY AND SATURDAY.
WINDS AND SEAS SUBSIDE LATE SATURDAY AND THEN REMAIN BELOW SMALL
CRAFT CRITERIA THROUGH EARLY NEXT WEEK.

&&

.TIDES/COASTAL FLOODING...
AN EASTERLY FLOW DEVELOPS BEHIND THE DEPARTING COLD FRONT BY
FRIDAY WHICH WILL TEND TO PUSH WATER TOWARDS OUR COAST. WITH THE
NEW MOON TODAY, HIGH TIDES WILL BE RUNNING A BIT HIGHER.
DEPARTURES OF AROUND A FOOT ARE NEEDED RIGHT NOW TO CAUSE ANY
FLOODING ALONG THE COAST BUT WITH THE WINDS REMAINING EASTERLY
INTO THE WEEKEND WE MAY APPROACH MINOR TIDAL FLOODING LEVELS
BEGINNING WITH THE FRIDAY NIGHT HIGH TIDE CYCLE.

&&

.CLIMATE...
SOME 100 DEGREE CLIMATOLOGY...

YESTERDAY, JULY 18, 2012 WE HIT 100 DEGREES AT PHILADELPHIA. THIS
WAS THE SECOND TIME THIS YEAR THAT WE HAVE REACHED OR EXCEEDED THE
100 DEGREE MARK. THE OTHER TIME WAS EARLIER THIS MONTH ON JULY 7TH
WHEN THE MERCURY CLIMBED TO 101 DEGREES.

WE HAVE NOW REACHED OR EXCEEDED THE 100 DEGREE MARK AT
PHILADELPHIA AT LEAST 2 TIMES FOR THE LAST 3 YEARS (2012, 2011,
2010).

IN 2011, PHILADELPHIA HIT 103 DEGREES ON JULY 22ND AND 101
DEGREES ON JULY 23RD.

IN 2010, PHILADELPHIA REACHED 102 DEGREES ON JULY 6TH AND 103
DEGREES ON JULY 7TH.

LOOKING BACK AT THE HISTORICAL RECORD, THERE HAVE ONLY BEEN 3
TIMES IN WHICH WE HAVE HAD 3 CONSECUTIVE YEARS REACHING OR
EXCEEDING 100 DEGREES AT LEAST 1 TIME.

THERE HAS ONLY BEEN A SINGLE 3 CONSECUTIVE YEAR PERIOD PRIOR TO
2010,2011,2012 IN WHICH PHILADELPHIA HAS REACHED OR EXCEEDED 100
DEGREES MULTIPLE TIMES IN EACH YEAR.

IN 1993, 100 DEGREES WAS EQUALED OR EXCEEDED ON JULY 8 (100),
JULY 9 (100) AND JULY 10 (101).

IN JUNE 1994, PHILADELPHIA HIT 100 DEGREES ON THE 15TH AND 19TH.

ON JULY 15, 1995, THE MERCURY SOARED TO 103 DEGREES.

SO, THERE WERE 3 READINGS AT OR ABOVE 100 DEGREES IN 1993, 2 IN
1994, BUT ONLY 1 IN 1995.

ON JULY 31, 1917 THE TEMPERATURE REACHED 101 DEGREES.

IN AUGUST 1918 THE TEMPERATURE SOARED TO 103 DEGREES ON THE 6TH
AND TO 106 DEGREES ON THE 7TH.

ON JULY 4TH AND 5TH 1919 THE TEMPERATURE EQUALED 100 DEGREES.

SO, THERE WERE 2 READINGS AT OR ABOVE 100 DEGREES IN 1918 AND
1919 BUT ONLY A SINGLE READING AT OR ABOVE 100 DEGREES IN 1917.

THE 106 DEGREE READING ON AUGUST 17, 1918 ALSO MARKS THE ALL-TIME
HIGH TEMPERATURE FOR THE CITY OF PHILADELPHIA!

IN 1953, THE TEMPERATURE REACHED 100 DEGREES ON AUGUST 30TH AND
101 DEGREES ON AUGUST 31ST. IT ALSO REACHED 100 DEGREES ON
SEPTEMBER 2ND AND 3RD.

ON JULY 14, 1954 THE TEMPERATURE REACHED 101 DEGREES AND ON JULY
31, IT REACHED 102 DEGREES.

ON JULY 22 AND AUGUST 6, 1955 THE MERCURY TOPPED OUT AT 100
DEGREES.

SO FOR THE CONSECUTIVE 3 YEAR PERIOD OF 1953, 1954, 1955, THIS IS
THE ONLY OTHER TIME WHERE THERE HAS BEEN AT LEAST 2 DAYS WHERE THE
TEMPERATURE HAS REACHED OR EXCEEDED 100 DEGREES PRIOR TO THE
2010-2012 PERIOD.

ALSO, 1953 IS THE ONLY TIME THAT 100 DEGREES HAS EVER BEEN
RECORDED IN PHILADELPHIA IN THE MONTH OF SEPTEMBER (TWICE)!

THE GOLD STANDARD FOR NUMBER OF 100 DEGREE DAYS IN PHILADELPHIA
IS 5 (NON-CONSECUTIVE) SET BACK IN THE VERY HOT SUMMER OF 1988.
JULY 1988 IS THE ONLY MONTH THAT HAS EVER RECORDED 4 100 OR
GREATER DEGREE TEMPERATURES.

THE PERIOD OF RECORD FOR PHILADELPHIA GOES BACK TO 1850.

2012	 7/18/12	100
	 7/7/12		101
2011	 7/22/11	103
	 7/23/11	101
2010	 7/6/10 	102
	 7/7/10		103

1993 	 7/8/93		100
	 7/9/93		100
	 7/10/93	101
1994	 6/15/94	100
	 6/19/94	100
1995	 7/15/95	103

1917 	 7/31/17	101
1918	 8/6/18		103
 	 8/7/18		106*
1919	 7/4/19		100
	 7/5/19		100

1953 	 8/30/53	100
	 8/31/53	101
	 9/2/53		100
	 9/3/53		100
1954	 7/14/54	101
	 7/31/54	102
1955	 7/22/55	100
 	 8/6/55		100

1988	 6/22/88	100
	 7/10/88	100
	 7/11/88	100
  	 7/16/88	102
	 7/17/88	102

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...NONE.
NJ...NONE.
DE...NONE.
MD...NONE.
MARINE...NONE.

&&

SYNOPSIS...NIERENBERG
NEAR TERM...IOVINO/ROBERTSON
SHORT TERM...IOVINO
LONG TERM...NIERENBERG
AVIATION...IOVINO/NIERENBERG/ROBERTSON
MARINE...IOVINO/NIERENBERG
TIDES/COASTAL FLOODING...
CLIMATE...
Hazardous weather outlook, Jul 19, 4:30 AM EDT, 10 hours 46 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
430 AM EDT THU JUL 19 2012

DEZ001>004-MDZ008-012-015-019-020-NJZ001-007>010-012>027-PAZ054-055-
060>062-067>071-200830-
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-
430 AM EDT THU JUL 19 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL DELAWARE...NORTHERN
DELAWARE...SOUTHERN DELAWARE...NORTHEAST MARYLAND...CENTRAL NEW
JERSEY...NORTHERN NEW JERSEY...NORTHWEST NEW JERSEY...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.

ANZ430-431-450>455-200830-
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-
430 AM EDT THU JUL 19 2012

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

Local storm report, Jul 19, 10:03 AM EDT, 5 hours 13 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1003 AM EDT THU JUL 19 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0120 PM     HAIL             SUSSEX                  41.21N  74.61W
07/18/2012  E0.88 INCH       SUSSEX             NJ   PUBLIC

0245 PM     HAIL             SOUTH AMBOY             40.49N  74.28W
07/18/2012  M0.50 INCH       MIDDLESEX          NJ   TRAINED SPOTTER

0246 PM     TSTM WND DMG     SAYREVILLE              40.47N  74.32W
07/18/2012                   MIDDLESEX          NJ   TRAINED SPOTTER

            NUMEROUS TREES AND WIRES DOWN IN SAYREVILLE.

0246 PM     LIGHTNING        SAYREVILLE              40.47N  74.32W
07/18/2012                   MIDDLESEX          NJ   TRAINED SPOTTER

            3 STRUCTURES STRUCK BY LIGHTNING

0322 PM     TSTM WND DMG     BETHLEHEM               40.63N  75.37W
07/18/2012                   NORTHAMPTON        PA   TRAINED SPOTTER

            NUMEROUS LARGE TREE BRANCHES DOWN WITH SOME POWER
            OUTAGES. UNION BLVD AND PENNSYLVANIA AVE

0327 PM     HAIL             ANDOVER                 40.99N  74.74W
07/18/2012  E0.88 INCH       SUSSEX             NJ   PUBLIC

0335 PM     TSTM WND DMG     ANDOVER                 40.99N  74.74W
07/18/2012                   SUSSEX             NJ   911 CALL CENTER

            TREES AND WIRES DOWN

0340 PM     TSTM WND DMG     HANOVER TWP             40.67N  75.40W
07/18/2012                   NORTHAMPTON        PA   PUBLIC

            BRANCHES DOWN... 1 TREE UPROOTED. TIME EST.

0348 PM     TSTM WND DMG     WHITE TWP               40.83N  75.03W
07/18/2012                   WARREN             NJ   EMERGENCY MNGR

            TREES AND WIRES REPORTED DOWN ON ROUTE 46.

0357 PM     TSTM WND DMG     DOUGLASS TWP            40.28N  75.69W
07/18/2012                   BERKS              PA   TRAINED SPOTTER

            TREE DOWN ON ROUTE 36 AND EDGE HILL ROAD

0401 PM     TSTM WND GST     LAKE HOPATCONG          40.95N  74.62W
07/18/2012  E55 MPH          MORRIS             NJ   TRAINED SPOTTER

            TREE BRANCHES DOWN

0401 PM     FLASH FLOOD      FLANDERS                40.85N  74.69W
07/18/2012                   MORRIS             NJ   TRAINED SPOTTER

            ROADS FLOODED AT INTERSECTION OF ROUTE 206 AND 46.

0414 PM     TSTM WND GST     5 NW FLEMINGTON         40.56N  74.93W
07/18/2012  E50 MPH          HUNTERDON          NJ   TRAINED SPOTTER

0435 PM     TSTM WND DMG     RARITAN                 40.57N  74.64W
07/18/2012                   SOMERSET           NJ   PUBLIC

            LARGE BRANCHES BROKEN

0448 PM     HAIL             HILLSBOROUGH            40.48N  74.63W
07/18/2012  E0.88 INCH       SOMERSET           NJ   PUBLIC

0501 PM     TSTM WND GST     PERTH AMBOY             40.52N  74.27W
07/18/2012  E60 MPH          MIDDLESEX          NJ   PUBLIC

0520 PM     MARINE TSTM WIND MONMOUTH BEACH          40.34N  73.99W
07/18/2012  M46 MPH          MONMOUTH           NJ   WEATHER FLOW

0522 PM     HAIL             MIDDLETOWN              40.39N  74.12W
07/18/2012  E0.50 INCH       MONMOUTH           NJ   PUBLIC

0524 PM     HAIL             FREEHOLD                40.26N  74.28W
07/18/2012  E0.75 INCH       MONMOUTH           NJ   PUBLIC

0526 PM     HAIL             RED BANK                40.35N  74.07W
07/18/2012  E1.00 INCH       MONMOUTH           NJ   PUBLIC

0530 PM     TSTM WND GST     KENT ISLAND ESTATES     38.89N  76.35W
07/18/2012  M60 MPH          QUEEN ANNE'S       MD   TRAINED SPOTTER

0530 PM     MARINE TSTM WIND SANDY HOOK              40.44N  73.99W
07/18/2012  M43 MPH          MONMOUTH           NJ   WEATHER FLOW

0540 PM     HAIL             JACKSON TWP             40.12N  74.35W
07/18/2012  E0.50 INCH       OCEAN              NJ   PUBLIC

0609 PM     TSTM WND DMG     CENTREVILLE             39.04N  76.07W
07/18/2012                   QUEEN ANNE'S       MD   911 CALL CENTER

            SCATTERED TREES DOWN ACROSS THE COUNTY EXTENDING FROM
            KENT ISLAND TO CRUMPTON.

0610 PM     HAIL             MOUNT HOLLY WFO         39.99N  74.79W
07/18/2012  M0.50 INCH       BURLINGTON         NJ   NWS OFFICE

0620 PM     TSTM WND DMG     RIDGELY                 38.95N  75.89W
07/18/2012                   CAROLINE           MD   EMERGENCY MNGR

            WIRES DOWN IN RIDGELY.

0628 PM     TSTM WND DMG     GOLDSBORO               39.04N  75.79W
07/18/2012                   CAROLINE           MD   EMERGENCY MNGR

            TREES REPORTED DOWN IN GOLDSBORO.

0630 PM     MARINE TSTM WIND SHIP JOHN SHOAL NOS     39.30N  75.38W
07/18/2012  M43 MPH          ANZ430             NJ   NOS PLATFORM

0637 PM     TSTM WND GST     DOVER AFB               39.13N  75.47W
07/18/2012  M62 MPH          KENT               DE   ASOS

0730 PM     MARINE TSTM WIND CAPE MAY                38.94N  74.90W
07/18/2012  M39 MPH          CAPE MAY           NJ   WEATHER FLOW

0736 PM     MARINE TSTM WIND CAPE MAY NOS BUOY       38.97N  74.96W
07/18/2012  M41 MPH          ANZ431             NJ   NOS PLATFORM

&&

EVENT NUMBER PHI1200428 PHI1200429 PHI1200430 PHI1200435 PHI1200431
PHI1200432 PHI1200449 PHI1200455 PHI1200456 PHI1200437 PHI1200433
PHI1200434 PHI1200436 PHI1200438 PHI1200439 PHI1200440 PHI1200454
PHI1200442 PHI1200443 PHI1200444 PHI1200441 PHI1200447 PHI1200446
PHI1200451 PHI1200445 PHI1200458 PHI1200457 PHI1200450 PHI1200448
PHI1200452 PHI1200453

MEOLA
Local storm report, Jul 19, 10:56 AM EDT, 4 hours 20 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1056 AM EDT THU JUL 19 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0120 PM     HAIL             SUSSEX                  41.21N  74.61W
07/18/2012  E0.88 INCH       SUSSEX             NJ   PUBLIC

0245 PM     HAIL             SOUTH AMBOY             40.49N  74.28W
07/18/2012  M0.50 INCH       MIDDLESEX          NJ   TRAINED SPOTTER

0246 PM     TSTM WND DMG     SAYREVILLE              40.47N  74.32W
07/18/2012                   MIDDLESEX          NJ   TRAINED SPOTTER

            NUMEROUS TREES AND WIRES DOWN IN SAYREVILLE.

0246 PM     LIGHTNING        SAYREVILLE              40.47N  74.32W
07/18/2012                   MIDDLESEX          NJ   TRAINED SPOTTER

            3 STRUCTURES STRUCK BY LIGHTNING

0322 PM     TSTM WND DMG     BETHLEHEM               40.63N  75.37W
07/18/2012                   NORTHAMPTON        PA   TRAINED SPOTTER

            NUMEROUS LARGE TREE BRANCHES DOWN WITH SOME POWER
            OUTAGES. UNION BLVD AND PENNSYLVANIA AVE

0327 PM     HAIL             ANDOVER                 40.99N  74.74W
07/18/2012  E0.88 INCH       SUSSEX             NJ   PUBLIC

0335 PM     TSTM WND DMG     ANDOVER                 40.99N  74.74W
07/18/2012                   SUSSEX             NJ   911 CALL CENTER

            TREES AND WIRES DOWN

0340 PM     TSTM WND DMG     HANOVER TWP             40.67N  75.40W
07/18/2012                   NORTHAMPTON        PA   PUBLIC

            BRANCHES DOWN... 1 TREE UPROOTED. TIME EST.

0348 PM     TSTM WND DMG     WHITE TWP               40.83N  75.03W
07/18/2012                   WARREN             NJ   EMERGENCY MNGR

            TREES AND WIRES REPORTED DOWN ON ROUTE 46.

0357 PM     TSTM WND DMG     DOUGLASS TWP            40.28N  75.69W
07/18/2012                   BERKS              PA   TRAINED SPOTTER

            TREE DOWN ON ROUTE 36 AND EDGE HILL ROAD

0401 PM     TSTM WND GST     LAKE HOPATCONG          40.95N  74.62W
07/18/2012  E55 MPH          MORRIS             NJ   TRAINED SPOTTER

            TREE BRANCHES DOWN

0401 PM     FLASH FLOOD      FLANDERS                40.85N  74.69W
07/18/2012                   MORRIS             NJ   TRAINED SPOTTER

            ROADS FLOODED AT INTERSECTION OF ROUTE 206 AND 46.

0414 PM     TSTM WND GST     5 NW FLEMINGTON         40.56N  74.93W
07/18/2012  E50 MPH          HUNTERDON          NJ   TRAINED SPOTTER

0435 PM     TSTM WND DMG     RARITAN                 40.57N  74.64W
07/18/2012                   SOMERSET           NJ   PUBLIC

            LARGE BRANCHES BROKEN

0448 PM     HAIL             HILLSBOROUGH            40.48N  74.63W
07/18/2012  E0.88 INCH       SOMERSET           NJ   PUBLIC

0501 PM     TSTM WND GST     PERTH AMBOY             40.52N  74.27W
07/18/2012  E60 MPH          MIDDLESEX          NJ   PUBLIC

0520 PM     MARINE TSTM WIND MONMOUTH BEACH          40.34N  73.99W
07/18/2012  M46 MPH          MONMOUTH           NJ   WEATHER FLOW

0522 PM     HAIL             MIDDLETOWN              40.39N  74.12W
07/18/2012  E0.50 INCH       MONMOUTH           NJ   PUBLIC

0524 PM     HAIL             FREEHOLD                40.26N  74.28W
07/18/2012  E0.75 INCH       MONMOUTH           NJ   PUBLIC

0526 PM     HAIL             RED BANK                40.35N  74.07W
07/18/2012  E1.00 INCH       MONMOUTH           NJ   PUBLIC

0530 PM     TSTM WND GST     KENT ISLAND ESTATES     38.89N  76.35W
07/18/2012  M60 MPH          QUEEN ANNE'S       MD   TRAINED SPOTTER

0530 PM     MARINE TSTM WIND SANDY HOOK              40.44N  73.99W
07/18/2012  M43 MPH          MONMOUTH           NJ   WEATHER FLOW

0540 PM     HAIL             JACKSON TWP             40.12N  74.35W
07/18/2012  E0.50 INCH       OCEAN              NJ   PUBLIC

0600 PM     MARINE TSTM WIND SEA GIRT                40.13N  74.03W
07/18/2012  M46 MPH          MONMOUTH           NJ   MESONET

0607 PM     TSTM WND DMG     TOWNSEND                39.39N  75.69W
07/18/2012                   NEW CASTLE         DE   EMERGENCY MNGR

            POLE REPORTED DOWN IN TOWNSEND.

0609 PM     TSTM WND DMG     CENTREVILLE             39.04N  76.07W
07/18/2012                   QUEEN ANNE'S       MD   911 CALL CENTER

            SCATTERED TREES DOWN ACROSS THE COUNTY EXTENDING FROM
            KENT ISLAND TO CRUMPTON.

0610 PM     HAIL             MOUNT HOLLY WFO         39.99N  74.79W
07/18/2012  M0.50 INCH       BURLINGTON         NJ   NWS OFFICE

0620 PM     TSTM WND DMG     RIDGELY                 38.95N  75.89W
07/18/2012                   CAROLINE           MD   EMERGENCY MNGR

            WIRES DOWN IN RIDGELY.

0628 PM     TSTM WND DMG     GOLDSBORO               39.04N  75.79W
07/18/2012                   CAROLINE           MD   EMERGENCY MNGR

            TREES REPORTED DOWN IN GOLDSBORO.

0630 PM     MARINE TSTM WIND SHIP JOHN SHOAL NOS     39.30N  75.38W
07/18/2012  M43 MPH          ANZ430             NJ   NOS PLATFORM

0637 PM     TSTM WND GST     DOVER AFB               39.13N  75.47W
07/18/2012  M62 MPH          KENT               DE   ASOS

0730 PM     MARINE TSTM WIND CAPE MAY                38.94N  74.90W
07/18/2012  M39 MPH          CAPE MAY           NJ   WEATHER FLOW

0736 PM     MARINE TSTM WIND CAPE MAY NOS BUOY       38.97N  74.96W
07/18/2012  M41 MPH          ANZ431             NJ   NOS PLATFORM

&&

EVENT NUMBER PHI1200428 PHI1200429 PHI1200430 PHI1200435 PHI1200431
PHI1200432 PHI1200449 PHI1200455 PHI1200456 PHI1200437 PHI1200433
PHI1200434 PHI1200436 PHI1200438 PHI1200439 PHI1200440 PHI1200454
PHI1200442 PHI1200443 PHI1200444 PHI1200441 PHI1200447 PHI1200446
PHI1200460 PHI1200459 PHI1200451 PHI1200445 PHI1200458 PHI1200457
PHI1200450 PHI1200448 PHI1200452 PHI1200453

MEOLA
Special weather statement, Jul 19, 2:39 PM EDT, 37 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
239 PM EDT THU JUL 19 2012

DEZ001-MDZ008-191945-
CECIL MD-NEW CASTLE DE-
239 PM EDT THU JUL 19 2012

...A STRONG THUNDERSTORM WILL AFFECT CECIL AND NEW CASTLE COUNTIES...

AT 237 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM ABOUT 7 MILES SOUTHEAST OF NEWARK...MOVING SOUTH
AT 10 MPH. THE THUNDERSTORM WILL BE NEAR BRANTWOOD...CHESAPEAKE CITY
AROUND 245 PM...SAINT GEORGES...DELAWARE CITY AROUND 300 PM...PORT
PENN...BOHEMIAS MILLS AROUND 315 PM...ODESSA...MIDDLETOWN AROUND 330
PM...CHAMBERSVILLE AND TOWNSEND AROUND 345 PM.

VERY HEAVY RAIN WILL FALL FROM THIS STORM...AND WILL CAUSE WATER TO
POND ON ROADS AND QUICKLY FILL POOR DRAINAGE AREAS.

WIND GUSTS TO 40 MPH ARE POSSIBLE WITH THIS STORM.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. DO
NOT SEEK SHELTER UNDER TREES WHEN LIGHTNING THREATENS...MOVE INDOORS
WHEN A THUNDERSTORM APPROACHES.

LAT...LON 3972 7558 3967 7554 3962 7560 3960 7560
      3963 7557 3963 7556 3952 7555 3946 7558
      3942 7553 3937 7551 3935 7556 3931 7559
      3930 7576 3938 7577 3939 7580 3962 7588

MPD

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 18, 8:08 PM EDTSpecial Weather StatementPHIAtlantic22 min
Jul 19, 3:04 PM EDTSmall Craft AdvisoryPHI59 hr
Jul 19, 3:10 PM EDTSevere Thunderstorm WarningPHISalem50 min
Jul 19, 2:08 PM EDTAreal Flood AdvisoryPHINew Castle112 min
Jul 19, 2:39 PM EDTSpecial Weather StatementPHINew Castle66 min
Jul 19, 3:05 PM EDTAreal Flood AdvisoryPHINew Castle62 min
Jul 19, 4:56 PM EDTSpecial Weather StatementPHISussex64 min

Nearby

Special Marine Warnings in New Jersey, 2012Every special marine warning 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.