Alert archive / Pennsylvania / Areal Flood Advisories in 2016

Areal Flood Advisory 115, NWS Philadelphia/Mount Holly

July 31, 2016Monroe County, Northampton County, Pennsylvania

NWS Philadelphia/Mount Holly issued this areal flood advisory at Jul 31, 2016, 12:34 PM EDT for Monroe County, Northampton County, Pennsylvania. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Jul 31, 2016, 12:34 PM EDT (16:34 UTC)
Expired
Jul 31, 2016, 4:30 PM EDT
In force
4 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

Counties Monroe County, PA, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 132 km from the middle of the area, began a volume at 16:34 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, 4.6 hours before the alert went out and 207 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 12:00Z on 2016-07-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 325 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, Brookhaven, NY at 12:00Z on 2016-07-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 square meters per square second.19395878Sfc1 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
325 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
544 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
137 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

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 31, 9:24 AM EDT, 3 hours 10 minutes earlier.

Area forecast discussion, Jul 31, 9:24 AM EDT, 3 hours 10 minutes before
Area Forecast Discussion
National Weather Service Mount Holly NJ
924 AM EDT SUN JUL 31 2016

.SYNOPSIS...
A frontal boundary will remain draped across portions of our area
today and tonight before gradually shifting offshore during Monday.
High pressure will then build across our area Tuesday through
Wednesday before shifting offshore Thursday. A cold front approaches
late Friday, then it is scheduled to settle across our region during
Saturday.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...

A cluster of showers and thunderstorms is still ongoing across
north central New Jersey and will continue moving northeast over
the next couple of hours. For the rest of today, we are still in
a favorable position for more showers/t-storms ahead of a slow-
moving upper trof still over the midwest. Model guidance shows UVV
persisting over the mid- Atlantic today along with modest to
moderate instability with daytime heating. A slow moving frontal
boundary will enhance low- level convergence across the area as
well. Right now, the main axis for storm development by early
this afternoon looks to be from Mount Pocono to near Philadelphia.
Other isolated to scattered storms will still develop outside this area.
PWATs should continue to be in the 1.5 to 2.0 inch range and thus
heavy downpours and localized flooding are possible again today.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH 6 AM MONDAY/...
For tonight, basically the same pattern aloft will continue,
although the surface front/trof is forecast to shift SE to near the
NJ shore by Monday morning. Ongoing convection during the evening
should diminish somewhat overnight, but some activity may continue
into early morning with the upper trof still upstream.

&&

.LONG TERM /MONDAY THROUGH SATURDAY/...
The synoptic setup is comprised of a trough in the Northeast and Mid
Atlantic that amplifies some into Tuesday before shifting offshore.
A ridge across the southern states builds north into the Great Lakes
Wednesday and Thursday, then a narrow ridge axis briefly moves
across our area Friday. A trough near Hudson Bay Friday into
Saturday extends into the Great Lakes, however an associated cold
front approaches late Friday and then settles across our area
Saturday. We used a model blend for Monday into Wednesday, then
mostly went with mostly a continuity/00z WPC guidance blend. Some
adjustments were then made however following additional
collaboration with our neighboring offices.

For Monday...An upper-level trough sharpens some across the region.
As this occurs, a weak area surface low pressure tied to a frontal
boundary will gradually shift offshore. This will take much of the
forcing with it, however the presence of the upper-level trough will
still provide some lift and therefore some convection is still
expected. The convection may be more focused inland for much of the
day, before shifting toward the coast early in the evening. The PW
values remain near 2 inches and therefore included a heavy rain
mention. There could be a few strong thunderstorms during peak
heating, however the severe thunderstorm risk looks rather given
that the shear is not all that strong and lapse rates are not
forecast to be that steep. The convection should mostly trend
downward at night as the boundary stabilizes.

For Tuesday through Thursday...An upper-level trough axis should be
shifting offshore during Tuesday. However, if this is slower to
occur and enough moisture remains in place then a few showers/storms
could develop during peak heating. We then look for surface high
pressure to build in and be in place through Wednesday before it
shifts offshore Thursday. We are anticipating some lowering of the
dew points and also the temperatures. Some return flow however
starts to develop on Thursday, which should allow the dew points to
inch back up some.

For Friday and Saturday...High pressure to our south and east will
yield to a warm front lifting well to our north. This will help
assist in a more south-southwest flow as a cold front approaches
late day and at night. This front should settle across our area
during Saturday, however its forward progress could be slowed as the
main upper-level energy is forecast to track well to our north. Warm
air advection ahead of the front will allow for afternoon
temperatures to approach 90 degrees especially from the Interstate
95 corridor on south and east. The overall timing of the front will
govern any convective threat as it appears that a lee side trough
may not be present. We continued slight chance to low chance pops
from west to east mostly Friday night and Saturday.

&&

.AVIATION /13Z SUNDAY THROUGH THURSDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY and surrounding areas.

Conditions are mostly VFR to MVFR this morning but are also quite
variable. Cigs are then expected to gradually improve again to
VFR by mid-day. There will again be scattered showers and t-storms
around the area today which can produce locally poor conditions
especially this afternoon and evening. Winds will be light,
between 5 and 10 kt, except stronger around t-storms.

Outlook...
Monday...There is the potential for MVFR ceilings and/or
visibilities to start the morning, otherwise VFR with scattered to
broken cloud coverage. Some showers and thunderstorms will be around
and this will lead to mainly local and brief restrictions.

Tuesday through Thursday...VFR overall, with drier conditions
especially Wednesday and Thursday.

&&

.MARINE...
Winds and seas will remain rather light through tonight. SE winds
should shift to SW over DE into southern portions of NJ waters as a
frontal boundary moves N. There will be scattered showers and t-
storms with locally gusty winds and poor vsbys.

Outlook...
Monday through Thursday...The winds and seas are anticipated to be
mainly below Small Craft Advisory criteria, as weak low pressure
shifts offshore late Monday and then high pressure arrives Tuesday
into Thursday. Scattered thunderstorms are expected Monday
especially toward late day, however the greatest concentration of
storms may end up being inland.

&&

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

&&

Synopsis...Gorse
Near Term...AMC/Gaines
Short Term...AMC
Long Term...Gorse
Aviation...AMC/Gorse
Marine...AMC/Gorse
Hazardous weather outlook, Jul 31, 4:01 AM EDT, 8 hours 33 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
401 AM EDT SUN JUL 31 2016

DEZ001>003-MDZ008-012-015-019-020-NJZ001-007>010-012-013-015>023-027-
PAZ054-055-060>062-070-071-101>106-010815-
NEW CASTLE-KENT-INLAND SUSSEX-CECIL-KENT MD-QUEEN ANNES-TALBOT-
CAROLINE-SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX-
WESTERN MONMOUTH-MERCER-SALEM-GLOUCESTER-CAMDEN-
NORTHWESTERN BURLINGTON-OCEAN-CUMBERLAND-ATLANTIC-CAPE MAY-
SOUTHEASTERN BURLINGTON-CARBON-MONROE-BERKS-LEHIGH-NORTHAMPTON-
DELAWARE-PHILADELPHIA-WESTERN CHESTER-EASTERN CHESTER-
WESTERN MONTGOMERY-EASTERN MONTGOMERY-UPPER BUCKS-LOWER BUCKS-
401 AM EDT SUN JUL 31 2016

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.

SOME SHOWERS AND THUNDERSTORMS WILL PRODUCE VERY HEAVY RAIN AT
TIMES, WHICH CAN LEADING TO LOCALIZED FLOODING.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

FOR MONDAY...SOME SHOWERS AND THUNDERSTORMS WILL PRODUCE HEAVY
RAIN AT TIMES, WHICH CAN LEADING TO LOCALIZED FLOODING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

DEZ004-NJZ014-024>026-010815-
DELAWARE BEACHES-EASTERN MONMOUTH-ATLANTIC COASTAL CAPE MAY-
COASTAL ATLANTIC-COASTAL OCEAN-
401 AM EDT SUN JUL 31 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHERN DELAWARE...CENTRAL
NEW JERSEY AND SOUTHERN NEW JERSEY.

.DAY ONE...TODAY AND TONIGHT.

SOME SHOWERS AND THUNDERSTORMS WILL PRODUCE VERY HEAVY RAIN AT
TIMES ESPECIALLY THIS AFTERNOON AND EVENING, WHICH CAN LEADING TO
LOCALIZED FLOODING.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

FOR MONDAY AFTERNOON AND EVENING...SOME SHOWERS AND THUNDERSTORMS
WILL PRODUCE HEAVY RAIN AT TIMES, WHICH CAN LEADING TO LOCALIZED
FLOODING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

ANZ430-431-450>455-010815-
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-
401 AM EDT SUN JUL 31 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS AND
DELAWARE BAY WATERS.

.DAY ONE...TODAY AND TONIGHT.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Local storm report, Jul 31, 11:33 AM EDT, 1 hour 1 minute before
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>
Local storm report, Jul 31, 12:04 PM EDT, 30 minutes before
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>
Local storm report, Jul 31, 12:08 PM EDT, 26 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1208 PM EDT SUN JUL 31 2016

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

1145 AM     FLOOD            FRANKLIN TWP            40.56N  74.94W
07/31/2016                   HUNTERDON          NJ   CO-OP OBSERVER

            RARITAN RIVER IS ABOVE ITS BANKS...RIVER ROAD IS
            COVERED WITH WATER BUT NOT QUITE IMPASSABLE YET.

&&

EVENT NUMBER PHI1601702

SFJ
Local storm report, Jul 31, 12:11 PM EDT, 23 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1211 PM EDT SUN JUL 31 2016

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

1200 PM     HEAVY RAIN       READINGTON TWP          40.57N  74.80W
07/31/2016  M6.00 INCH       HUNTERDON          NJ   TRAINED SPOTTER

            EVENT TOTAL RAINFALL OF 6.00 INCHES. 3.49 INCHES HAS
            FALLEN SINCE 745 AM.

&&

EVENT NUMBER PHI1601703

MEOLA
Local storm report, Jul 31, 12:14 PM EDT, 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1214 PM EDT SUN JUL 31 2016

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

1100 AM     FLOOD            REAVILLE                40.48N  74.82W
07/31/2016                   HUNTERDON          NJ   OTHER FEDERAL

            THE NESHANIC RIVER AT REAVILLE HAS EXCEEDED ITS FLOOD
            STAGE OF 6.5 FEET.

&&

EVENT NUMBER PHI1601704

MEOLA
Local storm report, Jul 31, 12:19 PM EDT, 15 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1219 PM EDT SUN JUL 31 2016

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

0255 PM     TSTM WND DMG     1 WNW MORRISTOWN        40.79N  74.49W
07/30/2016                   MORRIS             NJ   BROADCAST MEDIA

            TREES AND WIRES DOWN ALONG A PORTION OF WESTERN AVENUE
            IN MORRISTOWN. TIME ESTIMATED FROM RADAR.

0305 PM     TSTM WND DMG     LITTLETON               40.84N  74.46W
07/30/2016                   MORRIS             NJ   COCORAHS

            TREES DOWN AT THE INTERSECTION OF ROUTE 202 AND ROUTE
            10 IN MORRIS PLAINS.

0346 PM     FLOOD            OLD BRIDGE              40.41N  74.37W
07/30/2016                   MIDDLESEX          NJ   SOCIAL MEDIA

            STREET FLOODING REPORTED NEAR THE OLD BRIDGE PARK AND
            RIDE.

0404 PM     FLASH FLOOD      WEST WINDSOR TWP        40.29N  74.64W
07/30/2016                   MERCER             NJ   SOCIAL MEDIA

            MULTIPLE ROADS REPORTED TO BE FLOODED AND IMPASSABLE.
            FLOODING REPORTED ON US 1... COUNTY ROUTE 571...
            WASHINGTON ROAD AND ALEXANDER ROAD. WATER RESCUES
            REPORTED TO BE ONGOING IN THE PRINCETON AREA.

0420 PM     FLASH FLOOD      PLAINSBORO              40.33N  74.60W
07/30/2016                   MIDDLESEX          NJ   SOCIAL MEDIA

            FLASH FLOODING OCCURRING IN PLAINSBORO. WATER REPORTED
            UP TO THE BUMPERS OF CARS.

0430 PM     FLASH FLOOD      PRINCETON JUNCTION      40.32N  74.62W
07/30/2016                   MERCER             NJ   BROADCAST MEDIA

            THE PRINCETON JUNCTION TRAIN STATION INUNDATED BY FLOOD
            WATERS. THE WATER IS UP TO THE TOP OF THE TUNNEL.

0433 PM     HEAVY RAIN       CRANBURY                40.32N  74.51W
07/30/2016  M2.20 INCH       MIDDLESEX          NJ   TRAINED SPOTTER

0530 PM     HEAVY RAIN       2 ESE PLAINSBORO        40.32N  74.57W
07/30/2016  M4.75 INCH       MIDDLESEX          NJ   COCORAHS

0530 PM     HEAVY RAIN       PLAINSBORO              40.33N  74.60W
07/30/2016  M5.75 INCH       MIDDLESEX          NJ   SOCIAL MEDIA

0535 PM     HEAVY RAIN       CRANBURY                40.32N  74.51W
07/30/2016  M4.05 INCH       MIDDLESEX          NJ   TRAINED SPOTTER

0625 PM     FLASH FLOOD      WEST WINDSOR TWP        40.29N  74.64W
07/30/2016                   MERCER             NJ   LAW ENFORCEMENT

            WEST WINDSOR TOWNSHIP DECLARED A STATE OF EMERGENCY DUE
            TO WIDESPREAD FLASH FLOODING. THIS INCLUDED DOZENS OF
            DISABLED VEHICLES REQUIRING WATER RESCUES.

0640 PM     HEAVY RAIN       2 W NORTH BRUNSWICK TWP 40.45N  74.51W
07/30/2016  M4.56 INCH       MIDDLESEX          NJ   COCORAHS

0710 PM     HEAVY RAIN       2 E SOUTH BRUNSWICK     40.41N  74.49W
07/30/2016  M5.41 INCH       MIDDLESEX          NJ   MESONET

            12 HOUR RAINFALL.

0730 PM     HEAVY RAIN       1 SE EWINGVILLE         40.27N  74.77W
07/30/2016  M2.65 INCH       MERCER             NJ   GOES

            12 HOUR RAINFALL.

0745 PM     HEAVY RAIN       MIDDLEBUSH              40.33N  74.52W
07/30/2016  M2.53 INCH       MIDDLESEX          NJ   IFLOWS

            12 HOUR RAINFALL.

0745 PM     HEAVY RAIN       7 SE MARTINSVILLE       40.50N  74.49W
07/30/2016  M2.31 INCH       SOMERSET           NJ   MESONET

            12 HOUR RAINFALL.

0757 PM     HEAVY RAIN       1 WNW RIVERDALE         41.00N  74.34W
07/30/2016  M2.08 INCH       MORRIS             NJ   MESONET

            12 HOUR RAINFALL.

1045 PM     HEAVY RAIN       1 NE PRINCETON MEADOWS  40.34N  74.56W
07/30/2016  M5.75 INCH       MIDDLESEX          NJ   PUBLIC

            MEASURED AT THE SIMONSON FARMS IN CRANBURY TOWNSHIP.

1050 PM     HEAVY RAIN       KEYPORT                 40.43N  74.20W
07/30/2016  M2.14 INCH       MONMOUTH           NJ   TRAINED SPOTTER

0600 AM     HEAVY RAIN       1 NW MORRIS TWP         40.81N  74.50W
07/31/2016  M2.15 INCH       MORRIS             NJ   COCORAHS

            24 HOUR RAINFALL.

0600 AM     HEAVY RAIN       DOYLESTOWN              40.31N  75.13W
07/31/2016  M2.62 INCH       BUCKS              PA   TRAINED SPOTTER

            24 HOUR TOTAL

0600 AM     HEAVY RAIN       BLACKWELLS MILLS        40.48N  74.57W
07/31/2016  M3.62 INCH       SOMERSET           NJ   CO-OP OBSERVER

            24 HOUR TOTAL

0630 AM     HEAVY RAIN       1 NNW LAWRENCE TWP      40.31N  74.72W
07/31/2016  M3.85 INCH       MERCER             NJ   COCORAHS

            24 HOUR RAINFALL.

0630 AM     HEAVY RAIN       E FLEMINGTON            40.51N  74.85W
07/31/2016  M2.45 INCH       HUNTERDON          NJ   COCORAHS

            24 HOUR RAINFALL.

0700 AM     HEAVY RAIN       5 NE OLD BRIDGE TWP     40.46N  74.24W
07/31/2016  M2.91 INCH       MIDDLESEX          NJ   COCORAHS

            24 HOUR RAINFALL.

0700 AM     HEAVY RAIN       1 N FRENCHTOWN          40.53N  75.06W
07/31/2016  M2.20 INCH       HUNTERDON          NJ   COCORAHS

            24 HOUR RAINFALL.

0700 AM     HEAVY RAIN       3 SSE TOMS RIVER TWP    39.95N  74.14W
07/31/2016  M2.09 INCH       OCEAN              NJ   COCORAHS

            24 HOUR RAINFALL.

0700 AM     HEAVY RAIN       3 SW LEBANON            40.61N  74.87W
07/31/2016  M2.62 INCH       HUNTERDON          NJ   COCORAHS

            24 HOUR RAINFALL.

0700 AM     HEAVY RAIN       3 NE MONTGOMERY TWP     40.46N  74.64W
07/31/2016  M2.17 INCH       SOMERSET           NJ   COCORAHS

            24 HOUR RAINFALL.

0700 AM     HEAVY RAIN       3 NNE FRANKLIN TWP      40.61N  74.92W
07/31/2016  M2.04 INCH       HUNTERDON          NJ   COCORAHS

            24 HOUR RAINFALL.

0700 AM     HEAVY RAIN       3 NNE EAST BRUNSWICK TW 40.47N  74.40W
07/31/2016  M3.09 INCH       MIDDLESEX          NJ   COCORAHS

            24 HOUR RAINFALL.

0700 AM     HEAVY RAIN       5 ESE HILLSBOROUGH TWP  40.47N  74.59W
07/31/2016  M2.43 INCH       SOMERSET           NJ   COCORAHS

            24 HOUR RAINFALL.

0700 AM     HEAVY RAIN       2 ESE DENVILLE TWP      40.88N  74.46W
07/31/2016  M2.31 INCH       MORRIS             NJ   COCORAHS

            24 HOUR RAINFALL.

0700 AM     HEAVY RAIN       1 E LEBANON             40.64N  74.82W
07/31/2016  M2.27 INCH       HUNTERDON          NJ   COCORAHS

            24 HOUR RAINFALL.

0700 AM     HEAVY RAIN       5 SW ALBURTIS           40.47N  75.67W
07/31/2016  M2.03 INCH       BERKS              PA   COCORAHS

            24 HOUR RAINFALL.

0700 AM     HEAVY RAIN       2 W NORTH BRUNSWICK TWP 40.45N  74.51W
07/31/2016  M4.90 INCH       MIDDLESEX          NJ   COCORAHS

            24 HOUR RAINFALL.

0700 AM     HEAVY RAIN       1 WSW MATAWAN           40.41N  74.25W
07/31/2016  M2.37 INCH       MIDDLESEX          NJ   COCORAHS

            24 HOUR RAINFALL.

0700 AM     HEAVY RAIN       2 W BRANCHBURG TWP      40.56N  74.75W
07/31/2016  M1.98 INCH       HUNTERDON          NJ   COCORAHS

            24 HOUR RAINFALL.

0700 AM     HEAVY RAIN       3 NE FRANKLIN TWP       40.50N  74.51W
07/31/2016  M2.60 INCH       SOMERSET           NJ   COCORAHS

            24 HOUR RAINFALL.

0700 AM     HEAVY RAIN       1 WSW BOONTON           40.90N  74.42W
07/31/2016  M2.50 INCH       MORRIS             NJ   COCORAHS

            24 HOUR RAINFALL.

0700 AM     HEAVY RAIN       WSW SOUTH RIVER         40.44N  74.38W
07/31/2016  M2.45 INCH       MIDDLESEX          NJ   COCORAHS

            24 HOUR RAINFALL.

0700 AM     HEAVY RAIN       RIEGELSVILLE            40.59N  75.19W
07/31/2016  M2.05 INCH       WARREN             NJ   CO-OP OBSERVER

            24 HOUR TOTAL

0700 AM     HEAVY RAIN       3 SW SCHNECKSVILLE      40.65N  75.65W
07/31/2016  M2.05 INCH       LEHIGH             PA   COCORAHS

            24 HOUR RAINFALL.

0700 AM     HEAVY RAIN       1 SSE MIDDLETOWN        39.44N  75.71W
07/31/2016  M1.92 INCH       NEW CASTLE         DE   COCORAHS

            24 HOUR RAINFALL.

0710 AM     HEAVY RAIN       3 SE HARDYSTON TWP      41.09N  74.54W
07/31/2016  M2.15 INCH       SUSSEX             NJ   COCORAHS

            24 HOUR RAINFALL.

0730 AM     FLOOD            MANCHESTER TWP          39.95N  74.40W
07/31/2016                   OCEAN              NJ   LAW ENFORCEMENT

            MINOR FLOODING ALONG ROUTE 530. TIME ESTIMATED FROM
            RADAR

0730 AM     HEAVY RAIN       1 NW BOONTON            40.91N  74.41W
07/31/2016  M2.11 INCH       MORRIS             NJ   COCORAHS

            24 HOUR RAINFALL.

0730 AM     HEAVY RAIN       ENE WYNCOTE             40.09N  75.14W
07/31/2016  M2.07 INCH       MONTGOMERY         PA   COCORAHS

            24 HOUR RAINFALL.

0750 AM     HEAVY RAIN       5 S GARDENVILLE         40.29N  75.09W
07/31/2016  M2.36 INCH       BUCKS              PA   MESONET

            12 HOUR RAINFALL.

0751 AM     HEAVY RAIN       11 SE LAKEHURST         39.89N  74.16W
07/31/2016  M2.00 INCH       OCEAN              NJ   MESONET

            12 HOUR RAINFALL.

0800 AM     HEAVY RAIN       NW PINE BEACH           39.94N  74.17W
07/31/2016  M3.50 INCH       OCEAN              NJ   COCORAHS

            24 HOUR RAINFALL.

0800 AM     HEAVY RAIN       4 SE HILLSBOROUGH TWP   40.47N  74.62W
07/31/2016  M2.10 INCH       SOMERSET           NJ   COCORAHS

            24 HOUR RAINFALL.

0800 AM     HEAVY RAIN       NE NEW BRUNSWICK        40.49N  74.44W
07/31/2016  M3.67 INCH       MIDDLESEX          NJ   COCORAHS

            24 HOUR RAINFALL.

0800 AM     HEAVY RAIN       2 SSW LAWRENCE TWP      40.27N  74.73W
07/31/2016  M3.42 INCH       MERCER             NJ   COCORAHS

            24 HOUR RAINFALL.

0800 AM     HEAVY RAIN       SE LEBANON              40.64N  74.83W
07/31/2016  M2.66 INCH       HUNTERDON          NJ   COCORAHS

            24 HOUR RAINFALL.

0800 AM     HEAVY RAIN       2 E FLEMINGTON          40.51N  74.82W
07/31/2016  M2.20 INCH       HUNTERDON          NJ   COCORAHS

            24 HOUR RAINFALL.

0800 AM     HEAVY RAIN       NEW BRUNSWICK           40.49N  74.45W
07/31/2016  M3.51 INCH       MIDDLESEX          NJ   CO-OP OBSERVER

            24 HOUR TOTAL

0800 AM     HEAVY RAIN       1 WSW PISCATAWAY TWP    40.54N  74.48W
07/31/2016  M2.17 INCH       MIDDLESEX          NJ   COCORAHS

            24 HOUR RAINFALL.

0815 AM     HEAVY RAIN       2 ESE PLAINSBORO TWP    40.33N  74.55W
07/31/2016  M5.15 INCH       MIDDLESEX          NJ   COCORAHS

            24 HOUR RAINFALL.

0815 AM     HEAVY RAIN       4 ENE FRANKLIN TWP      40.50N  74.49W
07/31/2016  M2.32 INCH       SOMERSET           NJ   COCORAHS

            24 HOUR RAINFALL.

0830 AM     FLOOD            1 S ISLAND BEACH        39.83N  74.09W
07/31/2016                   OCEAN              NJ   PARK SERVICE

            THE MAIN ROAD IN ISLAND BEACH STATE PARK WAS FLOODED
            DUE TO HEAVY RAINFALL.

0842 AM     HEAVY RAIN       OCEAN COUNTY AIRPORT    39.93N  74.30W
07/31/2016  M5.59 INCH       OCEAN              NJ   ASOS

            SINCE 530 AM EDT

0900 AM     HEAVY RAIN       2 E DEANS               40.40N  74.48W
07/31/2016  M5.54 INCH       MIDDLESEX          NJ   MESONET

            24 HOUR TOTAL

0900 AM     HEAVY RAIN       LANOKA HARBOR           39.87N  74.17W
07/31/2016  M2.50 INCH       OCEAN              NJ   SOCIAL MEDIA

0900 AM     HEAVY RAIN       WHITING                 39.95N  74.38W
07/31/2016  M3.50 INCH       OCEAN              NJ   SOCIAL MEDIA

0900 AM     HEAVY RAIN       3 SSE BERKELEY TWP      39.89N  74.25W
07/31/2016  M3.22 INCH       OCEAN              NJ   COCORAHS

            2.38 INCHES FELL BETWEEN 700 AND 900 AM.

0900 AM     HEAVY RAIN       3 NW SOUTH BRUNSWICK TW 40.41N  74.57W
07/31/2016  M5.03 INCH       MIDDLESEX          NJ   COCORAHS

            24 HOUR RAINFALL.

0900 AM     HEAVY RAIN       1 SW UNION TWP          40.62N  74.98W
07/31/2016  M2.03 INCH       HUNTERDON          NJ   COCORAHS

            24 HOUR RAINFALL.

0935 AM     FLOOD            PLEASANT RUN            40.56N  74.80W
07/31/2016                   HUNTERDON          NJ   TRAINED SPOTTER

            PLEASANT RUN HAS EXCEEDED ITS BANKS AND IS SPILLING
            OVER ONTO COUNTY ROAD 629.

1030 AM     HEAVY RAIN       FORKED RIVER            39.81N  74.15W
07/31/2016  M5.38 INCH       OCEAN              NJ   SOCIAL MEDIA

1045 AM     HEAVY RAIN       2 W ANDOVER TWP         41.02N  74.76W
07/31/2016  M2.20 INCH       SUSSEX             NJ   COCORAHS

            24 HOUR RAINFALL.

1100 AM     FLOOD            REAVILLE                40.48N  74.82W
07/31/2016                   HUNTERDON          NJ   OTHER FEDERAL

            THE NESHANIC RIVER AT REAVILLE HAS EXCEEDED ITS FLOOD
            STAGE OF 6.5 FEET.

1145 AM     FLOOD            FRANKLIN TWP            40.56N  74.94W
07/31/2016                   HUNTERDON          NJ   CO-OP OBSERVER

            RARITAN RIVER IS ABOVE ITS BANKS...RIVER ROAD IS
            COVERED WITH WATER BUT NOT QUITE IMPASSABLE YET.

1200 PM     HEAVY RAIN       READINGTON TWP          40.57N  74.80W
07/31/2016  M6.00 INCH       HUNTERDON          NJ   TRAINED SPOTTER

            EVENT TOTAL RAINFALL OF 6.00 INCHES. 3.49 INCHES HAS
            FALLEN SINCE 745 AM.

1204 PM     HEAVY RAIN       FLEMINGTON              40.51N  74.86W
07/31/2016  M4.15 INCH       HUNTERDON          NJ   CO-OP OBSERVER

            4.15 INCHES MEASURED SINCE 7 AM THIS MORNING. TOTAL
            EVENT RAINFALL OF 7.46 INCHES.

&&

EVENT NUMBER PHI1601634 PHI1601631 PHI1601628 PHI1601626 PHI1601627
PHI1601635 PHI1601642 PHI1601630 PHI1601632 PHI1601629 PHI1601636
PHI1601633 PHI1601640 PHI1601679 PHI1601638 PHI1601639 PHI1601637
PHI1601644 PHI1601643 PHI1601678 PHI1601682 PHI1601685 PHI1601676
PHI1601677 PHI1601659 PHI1601660 PHI1601661 PHI1601662 PHI1601663
PHI1601664 PHI1601665 PHI1601666 PHI1601667 PHI1601668 PHI1601669
PHI1601670 PHI1601671 PHI1601672 PHI1601673 PHI1601674 PHI1601675
PHI1601684 PHI1601686 PHI1601688 PHI1601658 PHI1601645 PHI1601656
PHI1601657 PHI1601681 PHI1601680 PHI1601650 PHI1601651 PHI1601652
PHI1601653 PHI1601654 PHI1601655 PHI1601687 PHI1601700 PHI1601648
PHI1601649 PHI1601691 PHI1601646 PHI1601647 PHI1601693 PHI1601694
PHI1601696 PHI1601698 PHI1601699 PHI1601689 PHI1601695 PHI1601697
PHI1601704 PHI1601702 PHI1601703 PHI1601701

MEOLA

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 30, 8:15 PM EDTAreal Flood AdvisoryPHIHunterdon4 hr
Jul 30, 10:19 PM EDTAreal Flood WarningPHIMercer, Middlesex, Somerset7 hr
Jul 30, 10:32 PM EDTAreal Flood WarningPHIHunterdon4 hr
Jul 30, 10:54 PM EDTSpecial Weather StatementPHICumberland, Gloucester, Salem36 min
Jul 31, 6:31 AM EDTAreal Flood AdvisoryPHIBurlington, Camden, Hunterdon, Mercer44 min
Jul 31, 6:49 AM EDTRiver Flood WarningPHISomerset25 hr
Jul 31, 7:04 AM EDTFlash Flood WarningPHIBurlington, Ocean4 hr
Jul 31, 7:19 AM EDTAreal Flood AdvisoryPHIBurlington, Camden, Mercer3 hr
Jul 31, 7:22 AM EDTAreal Flood AdvisoryPHIHunterdon, Mercer, Somerset4 hr
Jul 31, 7:48 AM EDTAreal Flood AdvisoryPHIBurlington, Ocean4 hr
Jul 31, 8:21 AM EDTFlash Flood WarningPHIHunterdon7 hr
Jul 31, 9:59 AM EDTSpecial Marine WarningPHI61 min
Jul 31, 10:08 AM EDTAreal Flood AdvisoryPHIAtlantic, Cape May, Cumberland4 hr
Jul 31, 10:17 AM EDTAreal Flood AdvisoryPHIMiddlesex, Morris, Somerset4 hr
Jul 31, 11:04 AM EDTAreal Flood WarningPHIHunterdon, Somerset9 hr
Jul 31, 11:53 AM EDTFlash Flood WarningPHIHunterdon, Somerset4 hr
Jul 31, 12:28 PM EDTFlash Flood WatchPHIHunterdon, Mercer, Middlesex, Monmouth, Morris, Somerset and 2 more38 hr
Jul 31, 12:44 PM EDTAreal Flood AdvisoryPHIMonmouth4 hr
Jul 31, 2:06 PM EDTFlash Flood WarningPHIMonmouth4 hr
Jul 31, 2:41 PM EDTSpecial Weather StatementPHIMercer49 min
Jul 31, 2:53 PM EDTSpecial Weather StatementPHIOcean22 min
Jul 31, 7:34 PM EDTAreal Flood AdvisoryPHIWarren4 hr
Jul 31, 6:35 PM EDTAreal Flood AdvisoryPHIMonroe4 hr
Jul 30, 9:07 PM EDTSevere Thunderstorm WarningPHICecil, Kent, Queen Anne's, Talbot38 min
Jul 30, 9:46 PM EDTSpecial Weather StatementPHIKent, Queen Anne's, Talbot44 min

Nearby

Areal Flood Advisories in Pennsylvania, 2016Every areal flood advisory in 2016

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.