Alert archive / New Jersey / Areal Flood Warnings in 2019

Areal Flood Warning 39, NWS Philadelphia/Mount Holly

July 17, 2019Somerset County, New Jersey

NWS Philadelphia/Mount Holly issued this areal flood warning at Jul 17, 2019, 11:12 PM EDT for Somerset County, New Jersey. It was in force for 3 hr. 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 17, 2019, 11:12 PM EDT (03:12 UTC)
Expired
Jul 18, 2019, 1:42 AM EDT
In force
3 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
None

County Somerset County, NJ

The radar

The Philadelphia radar (KDIX), 77 km from the middle of the area, began a volume at 03:12 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, 3.2 hours before the alert went out and 134 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 2019-07-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1392 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 00:00Z on 2019-07-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 106 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
1392 J/kg
Mixed-layer CIN
-88 J/kg
Mixed-layer LCL
975 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
106 m²/s²
0-3 km storm-relative helicity
133 m²/s²
Significant tornado parameter
0.4
Supercell composite
4.0

Open this sounding in Storm Lab

The text

As transmitted.

517 
WGUS41 KPHI 180312
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
1112 PM EDT Wed Jul 17 2019

NJC035-180715-
/O.NEW.KPHI.FA.W.0039.190718T0312Z-190718T0715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Somerset NJ-
1112 PM EDT Wed Jul 17 2019

The National Weather Service in Mount Holly NJ has issued a

* Flood Warning for...
  East central Somerset County in northern New Jersey...

* Until 315 AM EDT.

* At 1110 PM EDT, minor flooding was occurring along the Green Brook 
  in Watchung Township and North Plainfield. Minor flooding will 
  continue into the overnight hours with the Green Brook expected to 
  return within its banks before daybreak.

* Some locations that will experience minor flooding include...
  North Plainfield and Watchung. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Excessive runoff from heavy rainfall will cause minor flooding of 
small creeks and streams, as well as other poor drainage areas and 
low lying spots.

&&

LAT...LON 4064 7442 4061 7444 4061 7447 4067 7443
      4066 7441

$$

Iovino
1 follow-up statement
730 
WGUS81 KPHI 180542
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
142 AM EDT Thu Jul 18 2019

NJC035-180550-
/O.CAN.KPHI.FA.W.0039.000000T0000Z-190718T0715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Somerset NJ-
142 AM EDT Thu Jul 18 2019

...THE FLOOD WARNING HAS BEEN CANCELLED FOR EAST CENTRAL SOMERSET
COUNTY...

The Green Brook has returned within its banks, and no additional 
flooding is expected. Please continue to heed any road closures in 
the area.

LAT...LON 4064 7442 4061 7444 4061 7447 4067 7443
      4066 7441

$$

Iovino

What forecasters said that day

The local office's own words before this areal flood 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 areal flood warning went out at Jul 17, 11:02 PM EDT, 10 minutes earlier.

Area forecast discussion, Jul 17, 11:02 PM EDT, 10 minutes before
Area Forecast Discussion
National Weather Service Mount Holly NJ
1102 PM EDT Wed Jul 17 2019

.SYNOPSIS...
The remnants of former tropical cyclone Barry will continue to
move across the area tonight through Thursday while a cold front
slowly settles across the area as well. The front will finally
push south of the area and wash out Thursday night. A lee side
trough is forecast to develop across the east coast Friday and
continue through the weekend. A couple of cold fronts move
southward toward the area over the weekend, but never make it
into the area, before a stronger cold front moves across the
east coast Sunday night into Monday night.

&&

.NEAR TERM /UNTIL 6 AM THURSDAY MORNING/...
11PM update:

Severe watch has been allowed to expire although some stronger
thunderstorms may still be possible the next hour or so in
Sussex county Delaware and adjacent waters. Additionally the
Flash Flood watch has been allowed to expire as convective
rainfall has ended for the area covered by the watch.

Previous discussion:
The northern severe watch was allowed to expire on time.
Portions of severe watch 518 across Delmarva and southern NJ
remain in effect. I also updated to reduce PoPs especially after
04Z as both radar trends and high res models show that we
should have a lull in the precip after 04Z and continuing until
after sunrise tomorrow.

After the showers decrease, cloudy skies and patchy fog are
expected for the remainder of the overnight. It will be mild and
humid overnight with lows remaining in the 70s for most areas.

&&

.SHORT TERM /6 AM THURSDAY MORNING THROUGH 6 PM THURSDAY/...
Low clouds and patchy fog will be across the area during the
morning with a marine layer in place. The sun will burn through
the clouds during the morning and partly sunny skies are
expected by afternoon. I didn't change the max temperature for
tomorrow, but will acknowledge that it will be a tricky fcst
with the clouds keeping the heating down, but any breaks in the
clouds will allow for rapid heating. Dew points will be high and
it will be a muggy uncomfortable day region-wide. Scattered
showers and tstms expected much of the day. More downpours are
expected with the tstms.

&&

.LONG TERM /THURSDAY NIGHT THROUGH WEDNESDAY/...
The main concern during the long term will be the extreme and
potentially deadly heat and humidity for Friday through Sunday
for much of the area.

A frontal boundary will continue to move south across the area
Thursday night, but may wash out as it moves southward. There
will continue to be a chance of showers and thunderstorms
Thursday evening, but they will likely dissipate as we go into
the overnight hours.

Then the focus turns to the heat. At the surface, a lee-
side/thermal trough will develop along the east coast by Friday
and remain in place through Saturday and Sunday. Meanwhile,
ridging builds in from the west and southwest. This will allow
thicknesses to rise for Friday, Saturday, and Sunday. 925 mb/850
mb will be on the increase as well during this period. Saturday
is expected to be the hottest day of the three, although
temperatures will not be more than a couple of degrees different
each day. Saturday is also expected to have the highest
dewpoints of the three days, with dewpoints reaching the mid-
upper 70s, with the low to mid 70s Friday and Sunday. Basically
what this is pointing to is max heat index values increasing
from 105-110+ Friday, to 110-115+ on Saturday, back to 105- 110
on Sunday. Therefore we have issued an Excessive Heat Watch for
our entire forecast area except the urban corridor of
Wilmington- Philadelphia-Trenton which already has an Excessive
Heat Warning in effect.

We are expecting the weather to be dry for Friday through
Saturday night as there are no strong short waves and limited
vertical moisture each day. Also, there will be little in the
way of cloud cover which will provide little relief from the
heat as well.

On Saturday night, a cold front will approach the area, but may
wash out before it cross our area. There could be some showers
during the evening Saturday, but they are not expected to be
widespread. Another cold front is forecast to approach the area
Sunday, and make its way into our area Sunday night into Monday
and Monday night. This will be the time period when more
widespread shower/thunderstorm activity returns to the area. We
may also get a respite from the extreme heat as well as we move
into Monday with the chance of increasing clouds and
precipitation potential.

The front is forecast to push south of the area by Tuesday,
while high pressure builds to our west through Wednesday. This
should keep dry weather across the area, and keep temperatures
closer to normal Tuesday and Wednesday.

&&

.AVIATION /03Z THURSDAY THROUGH MONDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY and surrounding areas.

Tonight...SHRA and TSRA will diminish in coverage through 06Z.
After they do, MVFR ceilings and visibility (in BR) will be
possible through 12Z. Exact timing and extent of BR development
is uncertain. Overall, winds will be SW to W at 5 to 10 knots
overnight.

Thursday...Slow morning recovery from MVFR CIGS/VSBYS early
then VFR developing by late morning. More showers and a few
tstms will develop during the afternoon. Winds will be mostly SW
around 10 knots.

OUTLOOK...

Thursday night...Scattered showers and thunderstorms possible
in the evening Thursday which may temporarily lead to lower
conditions. Showers end and VFR conditions return overnight.

Friday-Sunday...Generally VFR conditions expected. West to
southwest wind gusts 15-20 knots possible each afternoon.

Sunday night-Monday...Showers and thunderstorms possible,
especially Monday, which may lead to temporary lower conditions.
West to Northwest winds may gust 15-20 knots during the day
Monday.

&&

.MARINE...
Winds and seas will build into the evening but overall,
conditions will likely remain below SCA criteria. Some winds
gusts around 20 knots and seas around 4 ft are possible on the
ocean overnight. Thunderstorms will move across the waters this
evening and overnight. Higher winds and seas in the vicinity of
tstms.

Thursday...Again, scattered tstms are expected but overall
winds and seas will be mostly 10 to 15 knots / 3 ft.

Outlook...

Thursday night-Monday...Conditions expected to remain below
advisory levels through the period, although winds may gust
around 20 knots at times and seas may build to 3-4 feet a times.

Rip Currents... With a decreasing period, expect that the risk
for the formation of dangerous rip currents will be low on
Thursday.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...Excessive Heat Watch from Friday afternoon through Sunday
     evening for PAZ054-055-060>062-101-103-105.
     Excessive Heat Warning until 10 PM EDT Sunday for PAZ070-071-
     102-104-106.
NJ...Excessive Heat Watch from Friday afternoon through Sunday
     evening for NJZ001-007>010-012>014-016-020>027.
     Excessive Heat Warning until 10 PM EDT Sunday for NJZ015-
     017>019.
DE...Excessive Heat Watch from Friday afternoon through Sunday
     evening for DEZ002>004.
     Excessive Heat Warning until 10 PM EDT Sunday for DEZ001.
MD...Excessive Heat Watch from Friday afternoon through Sunday
     evening for MDZ008-012-015-019-020.
MARINE...None.

&&

Synopsis...Robertson
Near Term...Carr/Johnson/O'Hara
Short Term...O'Hara
Long Term...Robertson
Aviation...Robertson/O'Hara
Marine...Johnson/Robertson/O'Hara
Hazardous weather outlook, Jul 17, 10:10 PM EDT, 1 hour 2 minutes before
Hazardous Weather Outlook
National Weather Service Mount Holly NJ
1010 PM EDT Wed Jul 17 2019

MDZ008-NJZ001-007>010-012-013-016-PAZ054-055-060>062-101-103-105-
190215-
Cecil-Sussex-Warren-Morris-Hunterdon-Somerset-Middlesex-
Western Monmouth-Salem-Carbon-Monroe-Berks-Lehigh-Northampton-
Western Chester-Western Montgomery-Upper Bucks-
1010 PM EDT Wed Jul 17 2019

...FLASH FLOOD WATCH IN EFFECT UNTIL 1 AM EDT THURSDAY...
...EXCESSIVE HEAT WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH
SUNDAY EVENING...

This Hazardous Weather Outlook is for northeast Maryland, central
New Jersey, northern New Jersey, northwest New Jersey, southern New
Jersey, east central Pennsylvania, northeast Pennsylvania and
southeast Pennsylvania.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Excessive Heat Watch.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.

DEZ002-MDZ012-015-019-020-NJZ020>022-027-190215-
Kent-Kent MD-Queen Annes-Talbot-Caroline-Ocean-Cumberland-Atlantic-
Southeastern Burlington-
1010 PM EDT Wed Jul 17 2019

...EXCESSIVE HEAT WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH
SUNDAY EVENING...

This Hazardous Weather Outlook is for central Delaware, northeast
Maryland and southern New Jersey.

.DAY ONE...Tonight.

There is a low probability for widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Excessive Heat Watch.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.

DEZ001-NJZ015-017>019-PAZ070-071-102-104-106-190215-
New Castle-Mercer-Gloucester-Camden-Northwestern Burlington-Delaware-
Philadelphia-Eastern Chester-Eastern Montgomery-Lower Bucks-
1010 PM EDT Wed Jul 17 2019

...EXCESSIVE HEAT WARNING IN EFFECT UNTIL 10 PM EDT SUNDAY...
...FLASH FLOOD WATCH IN EFFECT UNTIL 1 AM EDT THURSDAY...

This Hazardous Weather Outlook is for northern Delaware, central
New Jersey, southern New Jersey and southeast Pennsylvania.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Excessive Heat Warning.
   Flash Flood Watch.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Excessive Heat Warning.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.

DEZ003-NJZ023-190215-
Inland Sussex-Cape May-
1010 PM EDT Wed Jul 17 2019

...SEVERE THUNDERSTORM WATCH 518 IN EFFECT UNTIL MIDNIGHT EDT
TONIGHT...
...EXCESSIVE HEAT WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH
SUNDAY EVENING...

This Hazardous Weather Outlook is for southern Delaware and
southern New Jersey.

.DAY ONE...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...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Excessive Heat Watch.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.

NJZ014-025-026-190215-
Eastern Monmouth-Coastal Atlantic-Coastal Ocean-
1010 PM EDT Wed Jul 17 2019

...EXCESSIVE HEAT WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH
SUNDAY EVENING...

This Hazardous Weather Outlook is for central New Jersey and
southern New Jersey.

.DAY ONE...Tonight.

There is a low probability for widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Excessive Heat Watch.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.

DEZ004-NJZ024-190215-
Delaware Beaches-Atlantic Coastal Cape May-
1010 PM EDT Wed Jul 17 2019

...SEVERE THUNDERSTORM WATCH 518 IN EFFECT UNTIL MIDNIGHT EDT
TONIGHT...
...EXCESSIVE HEAT WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH
SUNDAY EVENING...

This Hazardous Weather Outlook is for southern Delaware and
southern New Jersey.

.DAY ONE...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...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Excessive Heat Watch.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.

ANZ431-453>455-190215-
Delaware Bay waters south of East Point NJ to Slaughter Beach DE-
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-
1010 PM EDT Wed Jul 17 2019

...SEVERE THUNDERSTORM WATCH 518 IN EFFECT UNTIL MIDNIGHT EDT
TONIGHT...

This Hazardous Weather Outlook is for Atlantic coastal waters and
Delaware Bay Waters.

.DAY ONE...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...Thursday through Tuesday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.

ANZ430-450>452-190215-
Delaware Bay waters north 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-
1010 PM EDT Wed Jul 17 2019

This Hazardous Weather Outlook is for Atlantic coastal waters and
Delaware Bay Waters.

.DAY ONE...Tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.

In the hours before

Local storm report, Jul 17, 9:55 PM EDT, 1 hour 17 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
955 PM EDT WED JUL 17 2019

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

0943 PM     TSTM WND DMG     OCEANPORT               40.32N 74.01W
07/17/2019                   MONMOUTH           NJ   911 CALL CENTER

            TREES AND WIRES DOWN IN OCEANPORT. TIME
            ESTIMATED FROM RADAR.

&&

JEO
Local storm report, Jul 17, 9:57 PM EDT, 1 hour 15 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
957 PM EDT WED JUL 17 2019

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

0945 PM     FLOOD            2 SSW MARTINSVILLE      40.58N 74.57W
07/17/2019                   SOMERSET           NJ   DEPT OF HIGHWAYS

            FLOODING ON US-22 EASTBOUND RAMP TO I-287
            SOUTHBOUND. RAMP CLOSED AND DETOURED.

&&

JEO
Local storm report, Jul 17, 10:02 PM EDT, 1 hour 10 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1002 PM EDT WED JUL 17 2019

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

0816 PM     TSTM WND DMG     COLLINGSWOOD            39.92N 75.08W
07/17/2019                   CAMDEN             NJ   TRAINED SPOTTER

            TREE DOWN ON A CAR ON HADDON AVE AT ZANE
            AVE. TIME ESTIMATED FROM RADAR.

&&

JEO
Local storm report, Jul 17, 10:04 PM EDT, 1 hour 8 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1004 PM EDT WED JUL 17 2019

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

0703 PM     TSTM WND DMG     1 WSW PORT DEPOSIT      39.60N 76.12W
07/17/2019                   CECIL              MD   DEPT OF HIGHWAYS

            DOWNED UTILITY ON MD-276 BOTH DIRECTIONS AT
            MD-222. ROAD CLOSED. TIME ESTIMATED FROM
            RADAR.

&&

JEO
Local storm report, Jul 17, 10:06 PM EDT, 1 hour 6 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1006 PM EDT WED JUL 17 2019

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

0755 PM     TSTM WND GST     PHILADELPHIA INTERNATIO 39.88N 75.23W
07/17/2019  M51 MPH          PHILADELPHIA       PA   ASOS

            KPHL ASOS.

0600 PM     TSTM WND GST     NORTH CATASAUQUA        40.66N 75.48W
07/17/2019  M48 MPH          NORTHAMPTON        PA   TRAINED SPOTTER

            TIME ESTIMATED.

0800 PM     HEAVY RAIN       GILBERTSVILLE           40.32N 75.61W
07/17/2019  M1.20 INCH       MONTGOMERY         PA   TRAINED SPOTTER

            FELL IN 30 MINUTES.

0535 PM     TSTM WND GST     2 S WEISENBERG TWP      40.58N 75.73W
07/17/2019  M53 MPH          LEHIGH             PA   TRAINED SPOTTER

            MEASURED ON A HANDHELD ANEMOMETER. TIME
            ESTIMATED.

0801 PM     TSTM WND GST     NEWTOWN SQUARE          39.99N 75.40W
07/17/2019  M58 MPH          DELAWARE           PA   MESONET

            MEASURED GUST TO 58MPH.

0755 PM     TSTM WND DMG     1 NE BERWYN             40.06N 75.42W
07/17/2019                   CHESTER            PA   FIRE DEPT/RESCUE

            POLES AND WIRES DOWN. TIME ESTIMATED FROM
            RADAR.

0746 PM     TSTM WND DMG     1 W EAST MARLBOROUGH TW 39.88N 75.73W
07/17/2019                   CHESTER            PA   FIRE DEPT/RESCUE

            POLES AND WIRES DOWN ON WOLLASTON RD AT W
            STREET RD.

0745 PM     TSTM WND DMG     1 WNW LENAPE            39.92N 75.64W
07/17/2019                   CHESTER            PA   FIRE DEPT/RESCUE

            WIRES DOWN.

0720 PM     TSTM WND DMG     1 NNW CALN TWP          40.01N 75.76W
07/17/2019                   CHESTER            PA   FIRE DEPT/RESCUE

            POLES AND WIRES DOWN ON FISHERVILLE RD AT N
            BAILEY RD. TIME ESTIMATED FROM RADAR.

0717 PM     TSTM WND DMG     1 E PARKESBURG          39.96N 75.89W
07/17/2019                   CHESTER            PA   911 CALL CENTER

            REPORT OF POWER POLES AND WIRES BLOWN DOWN
            ONTO CARS NEAR TIMACULA RD AT ROUTE 372.
            TIME ESTIMATED FROM RADAR.

0715 PM     TSTM WND DMG     2 WNW BRANDAMORE        40.07N 75.86W
07/17/2019                   CHESTER            PA   FIRE DEPT/RESCUE

            POLES AND WIRES DOWN ON BIRDELL RD AT
            GOOSEBERRY LN. TIME ESTIMATED FROM RADAR.

0841 PM     TSTM WND DMG     1 NNW MORRISVILLE       40.22N 74.78W
07/17/2019                   BUCKS              PA   DEPT OF HIGHWAYS

            DOWNED TREE ON PA-32. TIME ESTIMATED FROM
            RADAR.

0806 PM     FLASH FLOOD      1 SSW EXETER TWP        40.31N 75.85W
07/17/2019                   BERKS              PA   FIRE DEPT/RESCUE

            SHELBOURNE RD FLOODED AFTER CREEK OVERFLOWED
            ONTO IT.

0753 PM     FLASH FLOOD      DOUGLASSVILLE           40.26N 75.73W
07/17/2019                   BERKS              PA   FIRE DEPT/RESCUE

            WATER RESCUE ON E BEN FRANKLIN HWY AT OLD
            SWEDE RD.

0740 PM     HEAVY RAIN       WYOMISSING              40.33N 75.96W
07/17/2019  M2.50 INCH       BERKS              PA   PUBLIC

0731 PM     FLASH FLOOD      1 SW MOHNTON            40.27N 76.00W
07/17/2019                   BERKS              PA   TRAINED SPOTTER

            CREEK OVERFLOWED ONTO THE ROAD NEAR THE
            INTERSECTION OF HAMPSHIRE AND VERMONT RD.
            SEVERAL INCHES OF FLOWING WATER OVER ROAD.

0730 PM     LIGHTNING        2 N MOUNT PENN          40.36N 75.89W
07/17/2019                   BERKS              PA   NEWSPAPER

            HOUSE STRUCK BY LIGHTNING IN 600 BLOCK OF
            ANGORA RD. CREWS RESPONDING.

0728 PM     FLASH FLOOD      1 SSE MUHLENBERG TWP    40.37N 75.93W
07/17/2019                   BERKS              PA   FIRE DEPT/RESCUE

            WATER RESCUE REPORTED ON THE WARREN ST
            BYPASS NEAR THE N 5TH ST EXIT.

0727 PM     TSTM WND DMG     2 E BRECKNOCK TWP.      40.24N 75.95W
07/17/2019                   BERKS              PA   FIRE DEPT/RESCUE

            TREE DOWN AND BLOCKING THE ROAD ON KURTZ
            MILL RD AT MORGANTOWN RD. TIME ESTIMATED
            FROM RADAR.

0721 PM     FLASH FLOOD      1 SSE MUHLENBERG TWP    40.37N 75.93W
07/17/2019                   BERKS              PA   NEWSPAPER

            PORTION OF ROUTE 12 NEAR THE N 5TH ST EXIT
            UNDER WATER.

0721 PM     TSTM WND DMG     BIRDSBORO               40.26N 75.81W
07/17/2019                   BERKS              PA   FIRE DEPT/RESCUE

            TREES AND WIRES DOWN. TIME ESTIMATED FROM
            RADAR.

0717 PM     FLASH FLOOD      1 NE MOUNT PENN         40.34N 75.88W
07/17/2019                   BERKS              PA   FIRE DEPT/RESCUE

            WATER RESCUE ON THE 700 BLOCK OF CARSONIA
            AVE.

0715 PM     FLASH FLOOD      1 NNE WEST LAWN         40.34N 75.98W
07/17/2019                   BERKS              PA   FIRE DEPT/RESCUE

            5 VEHICLES REPORTED STRANDED IN FLOOD WATERS
            ON STATE HILL RD WITH RESCUES NEEDED.

0710 PM     LIGHTNING        1 E OLEY                40.39N 75.78W
07/17/2019                   BERKS              PA   FIRE DEPT/RESCUE

            RESIDENCE STRUCK BY LIGHTNING WITH FIRE
            DEPARTMENT RESPONDING.

0705 PM     FLOOD            1 N READING             40.35N 75.92W
07/17/2019                   BERKS              PA   NEWSPAPER

            FLOODING ON OLEY ST.

0703 PM     TSTM WND DMG     3 ESE FLEETWOOD         40.44N 75.77W
07/17/2019                   BERKS              PA   FIRE DEPT/RESCUE

            TREE DOWN ON WIRES. TIME ESTIMATED FROM
            RADAR.

0655 PM     TSTM WND DMG     2 NE BRASS CASTLE       40.78N 75.00W
07/17/2019                   WARREN             NJ   FIRE DEPT/RESCUE

            TREE LIMBS DOWN AT THE FAIRWAY VALLEY GOLF
            CLUB.

0705 PM     TSTM WND DMG     2 NW LOCKWOOD           40.95N 74.75W
07/17/2019                   SUSSEX             NJ   911 CALL CENTER

            TREE DOWN ON N SHORE RD. TIME ESTIMATED FROM
            RADAR.

0650 PM     TSTM WND DMG     HAMPTON TWP             41.11N 74.76W
07/17/2019                   SUSSEX             NJ   911 CALL CENTER

            TREE DOWN IN HAMPTON TWP. TIME ESTIMATED
            FROM RADAR.

0211 PM     HAIL             2 NNW FIVE POINTS       41.11N 74.87W
07/17/2019  E0.25 INCH       SUSSEX             NJ   PUBLIC

0945 PM     FLOOD            2 SSW MARTINSVILLE      40.58N 74.57W
07/17/2019                   SOMERSET           NJ   DEPT OF HIGHWAYS

            FLOODING ON US-22 EASTBOUND RAMP TO I-287
            SOUTHBOUND. RAMP CLOSED AND DETOURED.

0943 PM     TSTM WND DMG     OCEANPORT               40.32N 74.01W
07/17/2019                   MONMOUTH           NJ   911 CALL CENTER

            TREES AND WIRES DOWN IN OCEANPORT. TIME
            ESTIMATED FROM RADAR.

0922 PM     TSTM WND DMG     FREEHOLD TWP            40.24N 74.29W
07/17/2019                   MONMOUTH           NJ   911 CALL CENTER

            SEVERAL TREES AND POWER LINES DOWN IN
            FREEHOLD. TIME ESTIMATED FROM RADAR.

0855 PM     TSTM WND DMG     1 SSW HEATHCOTE         40.38N 74.58W
07/17/2019                   MIDDLESEX          NJ   911 CALL CENTER

            DOWNED TREE BLOCKING A LANE ON US-1
            NORTHBOUND AT RAYMOND RD. TIME ESTIMATED
            FROM RADAR.

0850 PM     TSTM WND DMG     2 ENE NORTH PRINCETON   40.37N 74.62W
07/17/2019                   MERCER             NJ   DEPT OF HIGHWAYS

            TREE DOWN AND BLOCKING ALL LANES OF NJ-27
            SOUTHBOUND SOUTH OF CR-605. TIME ESTIMATED
            FROM RADAR.

0840 PM     TSTM WND DMG     1 ENE EWING             40.28N 74.78W
07/17/2019                   MERCER             NJ   DEPT OF HIGHWAYS

            TREE DOWN AND BLOCKING A LANE OF NJ-31
            NORTHBOUND NEAR CR-636. TIME ESTIMATED FROM
            RADAR.

0800 PM     HEAVY RAIN       LEBANON                 40.64N 74.84W
07/17/2019  M2.30 INCH       HUNTERDON          NJ   PUBLIC

            FELL IN 45 MINUTES.

0811 PM     TSTM WND DMG     1 NE TURNERSVILLE       39.78N 75.05W
07/17/2019                   GLOUCESTER         NJ   DEPT OF HIGHWAYS

            DOWNED TREE ON NJ-42 SOUTHBOUND EXIT RAMP TO
            COLLEGE DR. RAMP CLOSED. TIME ESTIMATED FROM
            RADAR.

0809 PM     TSTM WND DMG     2 NNE MULLICA HILL      39.76N 75.20W
07/17/2019                   GLOUCESTER         NJ   PUBLIC

            MPING REPORT OF 3 INCH TREE LIMBS OR POWER
            POLES BROKEN.

0756 PM     TSTM WND DMG     1 E LOGAN TWP.          39.80N 75.33W
07/17/2019                   GLOUCESTER         NJ   DEPT OF HIGHWAYS

            DOWNED TREE CLOSING 1 OR 2 LANES OF US-130
            NORTHBOUND AT NJ-44. TIME ESTIMATED FROM
            RADAR.

0755 PM     TSTM WND DMG     GIBBSTOWN               39.83N 75.27W
07/17/2019                   GLOUCESTER         NJ   PUBLIC

            MPING REPORT OF 3 INCH TREE LIMBS OR POWER
            POLES BROKEN.

0819 PM     TSTM WND GST     MILLVILLE MUNICIPAL AIR 39.37N 75.08W
07/17/2019  M48 MPH          CUMBERLAND         NJ   ASOS

            KMIV ASOS.

0757 PM     TSTM WND GST     NEWPORT                 39.30N 75.18W
07/17/2019  M52 MPH          CUMBERLAND         NJ   TRAINED SPOTTER

0816 PM     TSTM WND DMG     COLLINGSWOOD            39.92N 75.08W
07/17/2019                   CAMDEN             NJ   TRAINED SPOTTER

            TREE DOWN ON A CAR ON HADDON AVE AT ZANE
            AVE. TIME ESTIMATED FROM RADAR.

0915 PM     FLOOD            1 E BURLINGTON TWP      40.06N 74.80W
07/17/2019                   BURLINGTON         NJ   DEPT OF HIGHWAYS

            FLOODING ON I-295 SOUTHBOUND NORTH OF EXIT
            47. ONE LANE CLOSED.

0720 PM     TSTM WND DMG     2 WNW MILLINGTON        39.26N 75.86W
07/17/2019                   KENT               MD   911 CALL CENTER

            TREE DOWN NEAR INTERSECTION OF ROUTES 291
            AND 301. TIME ESTIMATED FROM RADAR.

0700 PM     TSTM WND DMG     CHESTERTOWN             39.21N 76.07W
07/17/2019                   KENT               MD   911 CALL CENTER

            TREE DOWN IN CHESTERTOWN. TIME ESTIMATED
            FROM RADAR.

0703 PM     TSTM WND DMG     1 WSW PORT DEPOSIT      39.60N 76.12W
07/17/2019                   CECIL              MD   DEPT OF HIGHWAYS

            DOWNED UTILITY ON MD-276 BOTH DIRECTIONS AT
            MD-222. ROAD CLOSED. TIME ESTIMATED FROM
            RADAR.

0700 PM     TSTM WND DMG     RISING SUN              39.70N 76.06W
07/17/2019                   CECIL              MD   911 CALL CENTER

            NUMEROUS TREES DOWN IN RISING SUN. TIME
            ESTIMATED FROM RADAR.

0800 PM     TSTM WND DMG     NEWPORT                 39.30N 75.18W
07/17/2019                   ANZ430             NJ   TRAINED SPOTTER

            SEVERAL REPORTS OF WIRES DOWN ACROSS THE
            COUNTY. TIME ESTIMATED.

0855 PM     TSTM WND DMG     3 WNW HARBESON          38.72N 75.34W
07/17/2019                   SUSSEX             DE   911 CALL CENTER

            NUMEROUS TREES DOWN IN A LONG CORRIDOR
            BETWEEN GEORGETOWN AND LEWES. RADAR
            INDICATED STRONG DOWNBURST OR MICROBURST
            SIGNATURE. TIME ESTIMATED FROM RADAR.

0744 PM     TSTM WND DMG     1 SSE DOVER             39.15N 75.52W
07/17/2019                   KENT               DE   911 CALL CENTER

            TREES AND WIRES DOWN IN SOUTH DOVER. TIME
            ESTIMATED FROM RADAR.

0740 PM     TSTM WND DMG     WYOMING                 39.12N 75.56W
07/17/2019                   KENT               DE   911 CALL CENTER

            SEVERAL REPORTS OF TREES AND WIRES DOWN NEAR
            WYOMING AND CAMDEN. TIME ESTIMATED FROM
            RADAR.

&&

JEO
Local storm report, Jul 17, 10:14 PM EDT, 58 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1014 PM EDT WED JUL 17 2019

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

0920 PM     TSTM WND GST     BRICK                   40.01N 74.06W
07/17/2019  M50 MPH          OCEAN              NJ   MESONET

            MEASURED GUST TO 50MPH.

&&

JEO

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 17, 8:01 PM EDTAreal Flood AdvisoryPHIWarren88 min
Jul 17, 8:10 PM EDTSpecial Marine WarningPHI95 min
Jul 17, 8:15 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Gloucester, Hunterdon, Mercer and 1 more45 min
Jul 17, 8:39 PM EDTAreal Flood AdvisoryPHIMorris, Sussex3 hr
Jul 17, 8:40 PM EDTSpecial Weather StatementPHIAtlantic, Burlington, Mercer, Middlesex, Monmouth, Ocean65 min
Jul 17, 8:43 PM EDTSpecial Marine WarningPHI92 min
Jul 17, 8:50 PM EDTSevere Thunderstorm WarningPHIMiddlesex, Monmouth, Somerset40 min
Jul 17, 8:55 PM EDTAreal Flood AdvisoryPHIMercer, Middlesex, Somerset49 min
Jul 17, 9:02 PM EDTFlash Flood WarningPHIMercer, Middlesex, Somerset3 hr
Jul 17, 9:19 PM EDTSevere Thunderstorm WarningPHIMiddlesex, Monmouth, Ocean41 min
Jul 17, 9:44 PM EDTSpecial Marine WarningPHI61 min
Jul 17, 10:41 PM EDTSpecial Marine WarningPHI49 min
Jul 18, 1:30 PM EDTAreal Flood AdvisoryPHIGloucester4 hr
Jul 18, 2:13 PM EDTAreal Flood AdvisoryPHIBurlington, Camden, Gloucester, Ocean4 hr
Jul 18, 2:24 PM EDTAreal Flood AdvisoryPHISalem3 hr
Jul 18, 2:47 PM EDTFlash Flood WarningPHIBurlington, Ocean4 hr
Jul 18, 3:48 PM EDTAreal Flood AdvisoryPHIBurlington, Mercer, Middlesex, Monmouth, Ocean4 hr
Jul 18, 3:59 PM EDTAreal Flood AdvisoryPHIAtlantic, Burlington, Camden, Gloucester, Ocean, Salem3 hr
Jul 18, 4:19 PM EDTFlash Flood WarningPHIAtlantic, Burlington, Ocean3 hr
Jul 18, 4:30 PM EDTAreal Flood AdvisoryPHIHunterdon4 hr
Jul 18, 4:52 PM EDTSpecial Marine WarningPHI53 min
Jul 18, 4:53 PM EDTAreal Flood AdvisoryPHIMercer, Middlesex, Monmouth, Somerset4 hr
Jul 18, 4:56 PM EDTAreal Flood AdvisoryPHICumberland, Gloucester, Salem3 hr
Jul 18, 5:13 PM EDTFlash Flood WarningPHIMercer, Middlesex, Monmouth, Somerset3 hr
Jul 18, 5:57 PM EDTAreal Flood AdvisoryPHICumberland, Salem2 hr
Jul 18, 6:01 PM EDTFlash Flood WarningPHIHunterdon, Middlesex, Somerset4 hr

Nearby

Areal Flood Warnings in New Jersey, 2019Every areal flood warning in 2019

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.