Alert archive / Pennsylvania / Areal Flood Warnings in 2019

Areal Flood Warning 40, NWS Philadelphia/Mount Holly

July 22, 2019Lehigh County, Pennsylvania

NWS Philadelphia/Mount Holly issued this areal flood warning at Jul 22, 2019, 5:32 AM EDT for Lehigh County, Pennsylvania. It was in force for 49 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 22, 2019, 5:32 AM EDT (09:32 UTC)
Expired
Jul 22, 2019, 6:21 AM EDT
In force
49 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
None

County Lehigh County, PA

The radar

The Philadelphia radar (KDIX), 116 km from the middle of the area, began a volume at 09:34 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 00:00Z, 9.5 hours before the alert went out and 226 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 2019-07-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2295 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 2019-07-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 80 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
2295 J/kg
Mixed-layer CIN
-39 J/kg
Mixed-layer LCL
1588 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
80 m²/s²
0-3 km storm-relative helicity
85 m²/s²
Significant tornado parameter
0.2
Supercell composite
2.4

Open this sounding in Storm Lab

The text

As transmitted.

255 
WGUS41 KPHI 220932
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
532 AM EDT Mon Jul 22 2019

PAC077-221230-
/O.NEW.KPHI.FA.W.0040.190722T0932Z-190722T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lehigh PA-
532 AM EDT Mon Jul 22 2019

The National Weather Service in Mount Holly NJ has issued a

* Flood Warning for...
  Central Lehigh County in eastern Pennsylvania...

* Until 830 AM EDT.

* At 524 AM EDT, Doppler radar and automated rain gauges indicated 
  that minor flooding was occurring along portions of Little Lehigh 
  Creek near Little Lehigh Park. The creek is currently 0.08 ft 
  above flood stage as a result of more than 2 inches of rain which 
  fell earlier in the night.  

* Some locations that could experience flooding include...
  Allentown, Emmaus, Ancient Oaks and Macungie. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

&&

LAT...LON 4058 7548 4055 7549 4053 7552 4052 7556
      4053 7561 4055 7558 4058 7551 4059 7549
      4059 7548

$$

NC
1 follow-up statement
685 
WGUS81 KPHI 221021
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
621 AM EDT Mon Jul 22 2019

PAC077-221013-
/O.CAN.KPHI.FA.W.0040.000000T0000Z-190722T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lehigh PA-
621 AM EDT Mon Jul 22 2019

...THE FLOOD WARNING HAS BEEN CANCELLED FOR CENTRAL LEHIGH COUNTY...

Flood waters have receded, and are no longer expected to pose a
threat to life or property. 

LAT...LON 4058 7548 4055 7549 4053 7552 4052 7556
      4053 7561 4055 7558 4058 7551 4059 7549
      4059 7548

$$

NC

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 22, 4:15 AM EDT, 1 hour 17 minutes earlier.

Area forecast discussion, Jul 22, 4:15 AM EDT, 1 hour 17 minutes before
Area Forecast Discussion
National Weather Service Mount Holly NJ
415 AM EDT Mon Jul 22 2019

.SYNOPSIS...
Low pressure will drift eastward across the Mid-Atlantic this
afternoon and evening. As the low continues toward Nova Scotia on
Tuesday it is anticipated to pull a cold front slowly through our
region. High pressure is forecast to build in from the west on
Wednesday and Thursday. The center of the high is expected to slide
off the coast next weekend but will still continue to influence our
weather through the beginning of next week.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
Today is expected to be an active-day, as a surface low deepens
more or less overhead in response to an (fairly strong by July
standards) amplifying upstream h5 trough and sagging upper-lvl jet.
This morning will be fairly quiet though as we will remain capped
with the low and associated cold front still upstream of the area.

As the cap erodes this afternoon there will be two opportunities for
storms. First it is possible we will see some pop-up diurnal
convection in the early afternoon as the airmass will remain fairly
moist (PWATs > 2 inches, dewpoints 70-75) and unstable (MLCAPE
values increasing to 1000-1500 J/kg by the early afternoon). Heavy
rain will be the biggest threat with these although localized gusty
winds would also be possible. The more organized convective threat
associated with the stronger-forcing near the cold front looks to
approach from the west by mid-afternoon and then progress through
the remainder of the area by the late afternoon into the early
evening (the HRRR is currently a couple hours slower than the other
CAMs).

The same threats as mentioned in previous forecast packages still
look to apply. First strong-severe winds will be possible
particularly if the convective mode becomes linear or organized
multicell, which certainly seems a possibility with 1500-2000 J/kg
of MLCAPE,30 kts of 0-3km shear (for balancing cold pools), and
organized forcing near the cold front. Secondly heavy rain and
flooding will also be possible due to the elevated PWATS, dewpoints,
warm cloud layers, and dynamic forcing. Finally, there is a small
but not completely negligible threat of isolated tornadoes given the
impressive low-lvl instability, LCLs generally under 1000m (outside
of Delmarva which may mix more efficiently) and some locally
enhanced low-lvl helicity either near the front or outflow
boundaries.

Temperatures will be a bit cooler than the past few days, with a
more notable NW-SE temperature gradient due to the frontal position
and earlier onset of precipitation over the NW (precipitation may
not reach Delmarva/far southern NJ until near or after sunset).
Generally expect highs to range from the low-mid 80s in NW NJ and
eastern PA down to the mid 90s in Delmarva. A heat advisory remains
up for Delmarva and southern NJ, and it isn't impossible locations
in the urban corridor farther north could briefly hit criteria this
afternoon. That being said held off on extending the advisory to
include the Philadelphia area since it would likely be brief and
marginal heat advisory conditions.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH 6 AM TUESDAY/...
Although severe threat and overall convective intensity is expected
to wane within a few hours after sunset, expect continued rainfall
through much of the night. The first low does look to move out to
the NE, however guidance remains in fairly good agreement that a
secondary low will develop SW of this low and approach the area by
early Tuesday morning. This will help keep 2+ inch PWATs over much
of the area and along with the encroaching right entrance region of
an upper jet should be able to maintain at least moderate rainfall
over much of the area. It is possible as the low progresses NE the
precip threat will gradually taper from W to E but this is uncertain
at this point. Overnight lows will be a bit cooler than the past few
nights with many locations in PA/NW NJ falling into the 60s.

&&

.LONG TERM /TUESDAY THROUGH SUNDAY/...
330 AM Update...The only changes made to the long term forecast
with this morning's package were adjustments to the PoP
forecast for Tuesday and Tuesday night based on the latest model
guidance.

Tuesday through Wednesday...

By early Tuesday morning, a frontal boundary will be situated SW to
NE extending from the southern Delmarva off the coast of NJ which
will mean the area will be on the cool side of the boundary. However
upper level trough will continue to lag just off to the west with at
least one more impulse likely to come through. For this reason, one
more round of rain/showers and possible thunder is likely for
Tuesday morning mainly from around I-95 and points S/E. The rain
should not be as heavy as what could occur Monday/Monday night but
could still exacerbate any flooding issues that may be ongoing due
to earlier heavy rain. Temperatures will be much cooler with highs
in the 70s to around 80 and dew points in the 60s.

More appreciable clearing finally occurs Tuesday night as the front
continues to push off the coast and high pressure continues to
approach from the west. This surface ridging will nose into western
PA into upstate NY during the day Wednesday. However as the upper
trough axis moves through this along with daytime heating will
result in some daytime Cu but these should be of the fair weather
variety. Temperatures will be near if not a little below average for
this time of year with comfortable levels of humidity.

Wednesday night through Sunday....

A stretch of fair weather looks to finally take hold for the long
term as high pressure should dominate. This will mean mainly sunny
skies with seasonable temperatures and comfortable humidity levels
for Thursday and Friday as the high sets up right near the area.

By next weekend, as the high moves off the coast, a SW flow looks to
kick in so temperatures and dew points may start to nudge back up a
bit. However it doesn't look like a repeat of the current hot
stretch as heat indicies should not be nearly as high. Also, at this
point conditions look to remain mainly clear and free of precip
through next weekend.

&&

.AVIATION /08Z MONDAY THROUGH FRIDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG,
KMIV, KACY and surrounding areas.

Today...Generally VFR with an increasing threat of thunderstorms,
some strong, starting around 18Z in RDG and ABE and progressing
eastward through the remainder of the afternoon. Winds initially
light and variable this morning will favor SW 5-10 kts in the early
afternoon and then veer to the W/NW around 10 kts later in the day.

Tonight...Likely MVFR or lower for much of the night as rain and low
ceilings move in. Winds generally light and variable.

Outlook...

Tuesday...MVFR and IFR conditions in the morning due to lingering
low clouds and showers...especially from KILG through KPHL/KPNE and
KTTN and points S/E. Mainly VFR in the afternoon with a chance of
showers. N/NW wind around 10 knots.

Tuesday night...Mainly VFR. Northwest wind 5 to 10 knots.

Wednesday...Mainly VFR. Northwest wind around 10 knots.

Wednesday night and Thursday...Mainly VFR. Variable wind 10 knots or
less.

Friday...VFR. Light winds.

&&

.MARINE...
Although Sub-SCA conditions are generally expected to prevail, seas
may build to near 5 ft this afternoon over the Atlantic waters and
southerly wind gusts in the 20-25kt range may also be possible.
Thunderstorms will be possible late this afternoon into early this
evening resulting in locally stronger winds and higher seas.

Outlook...

Tuesday through Friday...Seas may be close to Small Craft
Advisory levels early Tuesday but otherwise no marine headlines
are anticipated.

RIP CURRENTS...
An increasing southerly wind fetch and building waves are
expected to create a moderate risk for the development of
dangerous rip currents today along the New Jersey shore. The
Delaware coastline is expected to have a low risk or the
development of dangerous rip currents today.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...Flash Flood Watch from 8 AM EDT this morning through Tuesday
     morning for PAZ054-055-060>062-070-071-101>106.
NJ...Flash Flood Watch from 8 AM EDT this morning through Tuesday
     morning for NJZ001-007>010-012>027.
     Heat Advisory until 7 PM EDT this evening for NJZ016-021-023-
     024.
DE...Flash Flood Watch from 8 AM EDT this morning through Tuesday
     morning for DEZ001>004.
     Heat Advisory until 7 PM EDT this evening for DEZ001>004.
MD...Flash Flood Watch from 8 AM EDT this morning through Tuesday
     morning for MDZ008-012-015-019-020.
     Heat Advisory until 7 PM EDT this evening for MDZ008-012-015-
     019-020.
MARINE...None.

&&

Synopsis...Fitzsimmons/Staarmann
Near Term...Carr
Short Term...Carr
Long Term...Fitzsimmons/Staarmann
Aviation...Carr/Fitzsimmons
Marine...Carr/Fitzsimmons/Staarmann
Hazardous weather outlook, Jul 22, 3:48 AM EDT, 1 hour 44 minutes before
Hazardous Weather Outlook
National Weather Service Mount Holly NJ
348 AM EDT Mon Jul 22 2019

NJZ001-007>010-PAZ054-055-060>062-101>103-105-230800-
Sussex-Warren-Morris-Hunterdon-Somerset-Carbon-Monroe-Berks-Lehigh-
Northampton-Western Chester-Eastern Chester-Western Montgomery-
Upper Bucks-
348 AM EDT Mon Jul 22 2019

...FLASH FLOOD WATCH IN EFFECT FROM 8 AM EDT THIS MORNING THROUGH
TUESDAY MORNING...

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

.DAY ONE...Today and 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.

Thunderstorms this afternoon and evening could produce severe
weather with damaging winds being the biggest threat.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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

   Flash Flood Watch.

.SPOTTER INFORMATION STATEMENT...

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

DEZ001>003-MDZ008-012-015-019-020-NJZ016-021-023-230800-
New Castle-Kent-Inland Sussex-Cecil-Kent MD-Queen Annes-Talbot-
Caroline-Salem-Cumberland-Cape May-
348 AM EDT Mon Jul 22 2019

...HEAT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING...
...FLASH FLOOD WATCH IN EFFECT FROM 8 AM EDT THIS MORNING THROUGH
TUESDAY MORNING...

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

.DAY ONE...Today and tonight.

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

   Heat Advisory.
   Flash Flood Watch.

Thunderstorms this afternoon and evening could produce severe
weather with damaging winds being the biggest threat.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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

   Flash Flood Watch.

.SPOTTER INFORMATION STATEMENT...

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

NJZ014-025-026-230800-
Eastern Monmouth-Coastal Atlantic-Coastal Ocean-
348 AM EDT Mon Jul 22 2019

...FLASH FLOOD WATCH IN EFFECT FROM 8 AM EDT THIS MORNING THROUGH
TUESDAY MORNING...

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

.DAY ONE...Today and 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.

There is a moderate risk for the formation of dangerous rip currents
today.

Thunderstorms this afternoon and evening could produce severe
weather with damaging winds being the biggest threat.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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

   Flash Flood Watch.

.SPOTTER INFORMATION STATEMENT...

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

NJZ024-230800-
Atlantic Coastal Cape May-
348 AM EDT Mon Jul 22 2019

...HEAT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING...
...FLASH FLOOD WATCH IN EFFECT FROM 8 AM EDT THIS MORNING THROUGH
TUESDAY MORNING...

This Hazardous Weather Outlook is for southern New Jersey.

.DAY ONE...Today and tonight.

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

   Heat Advisory.
   Flash Flood Watch.

There is a moderate risk for the formation of dangerous rip currents
today.

Thunderstorms this afternoon and evening could produce severe
weather with damaging winds being the biggest threat.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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

   Flash Flood Watch.

.SPOTTER INFORMATION STATEMENT...

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

DEZ004-230800-
Delaware Beaches-
348 AM EDT Mon Jul 22 2019

...HEAT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING...
...FLASH FLOOD WATCH IN EFFECT FROM 8 AM EDT THIS MORNING THROUGH
TUESDAY MORNING...

This Hazardous Weather Outlook is for southern Delaware.

.DAY ONE...Today and tonight.

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

   Heat Advisory.
   Flash Flood Watch.

Thunderstorms this afternoon and evening could produce severe
weather with damaging winds being the biggest threat.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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

   Flash Flood Watch.

.SPOTTER INFORMATION STATEMENT...

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

ANZ430-431-450>455-230800-
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-
348 AM EDT Mon Jul 22 2019

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

.DAY ONE...Today and tonight.

Thunderstorms this afternoon and evening could produce wind gusts in
excess of 35 knots.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

There is a low probability for widespread hazardous weather.

.SPOTTER INFORMATION STATEMENT...

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

NJZ012-013-015-017>020-022-027-PAZ070-071-104-106-230800-
Middlesex-Western Monmouth-Mercer-Gloucester-Camden-
Northwestern Burlington-Ocean-Atlantic-Southeastern Burlington-
Delaware-Philadelphia-Eastern Montgomery-Lower Bucks-
348 AM EDT Mon Jul 22 2019

...FLASH FLOOD WATCH IN EFFECT FROM 8 AM EDT THIS MORNING THROUGH
TUESDAY MORNING...

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

.DAY ONE...Today and 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.

Heat index values in the upper 90s to around 100 degrees are
expected from late this morning to late this afternoon.

Thunderstorms this afternoon and evening could produce severe
weather with damaging winds being the biggest threat.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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

   Flash Flood Watch.

.SPOTTER INFORMATION STATEMENT...

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

Staarmann

In the hours before

Local storm report, Jul 22, 1:25 AM EDT, 4 hours 7 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
125 AM EDT MON JUL 22 2019

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

1122 PM     TSTM WND DMG     1 SSE VERA CRUZ         40.50N 75.50W
07/21/2019                   LEHIGH             PA   FIRE DEPT/RESCUE

            DOWNED TREE ON VERA CRUZ ROAD. ANOTHER
            DOWNED TREE REPORTED ON ROUTE 29. TIME
            ESTIMATED FROM RADAR.

&&

CMS
Local storm report, Jul 22, 1:26 AM EDT, 4 hours 6 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
126 AM EDT MON JUL 22 2019

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

0513 PM     TSTM WND DMG     1 WNW BARRETT TWP       41.20N 75.28W
07/21/2019                   MONROE             PA   FIRE DEPT/RESCUE

            DOWNED TREE AND WIRES ON LONG ROAD IN
            BARRETT TWP. TIME ESTIMATED FROM RADAR.

0516 PM     TSTM WND DMG     SKYTOP                  41.22N 75.25W
07/21/2019                   MONROE             PA   FIRE DEPT/RESCUE

            MULTIPLE TREES DOWN ON DUTCH HILL ROAD IN
            BARRETT TWP WITH A LONG STRETCH OF THE ROAD
            CLOSED. TIME ESTIMATED FROM RADAR.

0517 PM     TSTM WND DMG     ANDOVER                 40.99N 74.74W
07/21/2019                   SUSSEX             NJ   FIRE DEPT/RESCUE

            DOWNED TREES AND POWER LINES REPORTED IN THE
            ANDOVER AREA. TIME ESTIMATED FROM RADAR.

0523 PM     TSTM WND DMG     4 NNE ALPINE MOUNTAIN   41.16N 75.19W
07/21/2019                   MONROE             PA   PUBLIC

            SEVERAL TREES DOWN ALONG SNOW HILL ROAD.
            TIME ESTIMATED FROM RADAR.

0617 PM     TSTM WND DMG     BYRAM TWP               40.94N 74.71W
07/21/2019                   SUSSEX             NJ   PUBLIC

            PHOTO VIA SOCIAL MEDIA OF A LARGE TREE LIMB
            DOWN. TIME ESTIMATED FROM RADAR.

0623 PM     TSTM WND DMG     HOPATCONG               40.94N 74.66W
07/21/2019                   SUSSEX             NJ   FIRE DEPT/RESCUE

            TREES REPORTED DOWN IN THE HOPATCONG AREA.
            TIME ESTIMATED FROM RADAR.

0630 PM     TSTM WND DMG     MOUNT ARLINGTON         40.93N 74.64W
07/21/2019                   MORRIS             NJ   911 CALL CENTER

            TREES AND WIRES DOWN IN MOUNT ARLINGTON.
            TIME ESTIMATED FROM RADAR.

0700 PM     TSTM WND DMG     1 WSW PEAPACK AND GLADS 40.71N 74.68W
07/21/2019                   SOMERSET           NJ   FIRE DEPT/RESCUE

            DOWNED TREE AND WIRES ON FOWLER ROAD IN
            BEDMINSTER TWP. TIME ESTIMATED FROM RADAR.

0705 PM     TSTM WND DMG     FAR HILLS               40.68N 74.64W
07/21/2019                   SOMERSET           NJ   PUBLIC

            MPING REPORT OF DOWNED TREE LIMBS AND POWER
            POLES AT THIS LOCATION. TIME ESTIMATED FROM
            RADAR.

0714 PM     TSTM WND DMG     2 WNW MARTINSVILLE      40.61N 74.59W
07/21/2019                   SOMERSET           NJ   FIRE DEPT/RESCUE

            SEVERAL DOWNED TREES AND POWER LINES ALONG
            AND EAST OF CRIM ROAD. TIME ESTIMATED FROM
            RADAR.

0716 PM     TSTM WND DMG     1 SSW MARTINSVILLE      40.59N 74.56W
07/21/2019                   SOMERSET           NJ   FIRE DEPT/RESCUE

            SEVERAL REPORTS OF DOWNED TREES AND WIRES IN
            THE CHIMNEY ROCK AREA NEAR WASHINGTON VALLEY
            PARK AND RESERVOIR. TIME ESTIMATED FROM
            RADAR.

0717 PM     TSTM WND DMG     1 ESE MARTINSVILLE      40.60N 74.55W
07/21/2019                   SOMERSET           NJ   FIRE DEPT/RESCUE

            SEVERAL REPORTS OF DOWNED TREES ON PRIMROSE
            LANE. TIME ESTIMATED FROM RADAR.

0720 PM     TSTM WND DMG     BRIDGEWATER             40.60N 74.63W
07/21/2019                   SOMERSET           NJ   PUBLIC

            PICTURE VIA SOCIAL MEDIA OF A TREE OR LARGE
            LIMB DOWN ONTO AND DAMAGING A DECK. TIME
            ESTIMATED FROM RADAR.

0721 PM     HAIL             BRIDGEWATER             40.60N 74.63W
07/21/2019  M0.75 INCH       SOMERSET           NJ   TRAINED SPOTTER

0721 PM     TSTM WND DMG     SOMERVILLE              40.57N 74.62W
07/21/2019                   SOMERSET           NJ   PUBLIC

            REPORTS OF TREES DOWN. PEA-SIZED HAIL ALSO
            REPORTED. TIME ESTIMATED FROM RADAR.

0722 PM     TSTM WND DMG     1 WNW BOUND BROOK       40.57N 74.54W
07/21/2019                   SOMERSET           NJ   FIRE DEPT/RESCUE

            WIRES DOWN WITH A TRANSFORMER FIRE ON WEST
            FRANKLIN ST.

0723 PM     TSTM WND DMG     1 E BRIDGEWATER         40.59N 74.61W
07/21/2019                   SOMERSET           NJ   PUBLIC

            POLES AND WIRES DOWN ON NORTH BRIDGE ST.
            TIME ESTIMATED FROM RADAR.

0727 PM     TSTM WND DMG     SOUTH BOUND BROOK       40.55N 74.53W
07/21/2019                   SOMERSET           NJ   FIRE DEPT/RESCUE

            REPORTS OF LARGE TREES AND POWER LINES DOWN
            NEAR CHARLOTTE AVENUE AND MAPLE AVENUE. TIME
            ESTIMATED FROM RADAR AND NEARBY REPORTS.

0728 PM     HAIL             1 S SOUTH BOUND BROOK   40.55N 74.53W
07/21/2019  E0.75 INCH       SOMERSET           NJ   COCORAHS

0729 PM     TSTM WND DMG     2 NNE MANVILLE          40.57N 74.57W
07/21/2019                   SOMERSET           NJ   FIRE DEPT/RESCUE

            SEVERAL DOWNED TREES AND WIRES ON FOOTHILL
            ROAD NEAR ASCOT LANE AND JAMESTOWN ROAD.
            TIME ESTIMATED FROM RADAR.

0730 PM     TSTM WND DMG     2 NNE MANVILLE          40.57N 74.57W
07/21/2019                   SOMERSET           NJ   FIRE DEPT/RESCUE

            WIRES DOWN AND BURNING ON FOOTHILL RD.

0731 PM     TSTM WND DMG     1 WNW BOUND BROOK       40.57N 74.54W
07/21/2019                   SOMERSET           NJ   DEPT OF HIGHWAYS

            DOWNED TREE ON STATE HIGHWAY 28 BETWEEN
            VOSSELLER AVENUE AND MOUNTAIN AVENUE. ALL
            LANES CLOSED. TIME ESTIMATED FROM RADAR.

0732 PM     HAIL             1 W BOUND BROOK         40.56N 74.55W
07/21/2019  E0.50 INCH       SOMERSET           NJ   PUBLIC

            MPING REPORT.

0732 PM     HAIL             BOUND BROOK             40.57N 74.52W
07/21/2019  E0.25 INCH       MIDDLESEX          NJ   PUBLIC

            MPING REPORT.

0733 PM     TSTM WND DMG     1 WNW BOUND BROOK       40.57N 74.54W
07/21/2019                   SOMERSET           NJ   FIRE DEPT/RESCUE

            TREE DOWN ON A HOUSE ON WASHINGTON STREET.
            TIME ESTIMATED FROM RADAR.

0735 PM     HAIL             MIDDLESEX               40.58N 74.50W
07/21/2019  E0.25 INCH       MIDDLESEX          NJ   PUBLIC

            SOCIAL MEDIA PHOTO OF PEA SIZE HAIL ON A
            DECK. TIME ESTIMATED FROM RADAR.

0736 PM     TSTM WND DMG     BOUND BROOK             40.56N 74.53W
07/21/2019                   SOMERSET           NJ   FIRE DEPT/RESCUE

            DOWNED TREE AND WIRES AT A RESIDENCE ON
            HAMILTON STREET. TIME ESTIMATED FROM RADAR.

0741 PM     TSTM WND DMG     SOMERSET                40.50N 74.52W
07/21/2019                   SOMERSET           NJ   FIRE DEPT/RESCUE

            SEVERAL REPORTS OF DOWNED TREES AND WIRES IN
            SOMERSET. TIME ESTIMATED FROM RADAR.

0743 PM     TSTM WND DMG     1 NW NEW BRUNSWICK      40.50N 74.45W
07/21/2019                   MIDDLESEX          NJ   PUBLIC

            SEVERAL DOWNED TREES ON COLLEGE AVENUE
            CAMPUS AND IN SURROUNDING AREAS. TIME
            ESTIMATED FROM RADAR.

0745 PM     TSTM WND DMG     1 W NEW BRUNSWICK       40.50N 74.45W
07/21/2019                   MIDDLESEX          NJ   FIRE DEPT/RESCUE

            CRANE COLLAPSE LIKELY DUE TO THUNDERSTORM
            WINDS AT 141 HAMILTON ST. TIME ESTIMATED
            FROM RADAR.

0807 PM     HAIL             1 WNW FULLERTON         40.64N 75.49W
07/21/2019  E0.25 INCH       LEHIGH             PA   PUBLIC

            MPING REPORT.

0851 PM     TSTM WND DMG     1 NNE NEW TRIPOLI       40.69N 75.74W
07/21/2019                   LEHIGH             PA   FIRE DEPT/RESCUE

            SEVERAL REPORTS OF DOWNED TREES AND WIRES IN
            NEW TRIPOLI INCLUDING ON MEMORIAL RD. TIME
            ESTIMATED FROM RADAR.

0852 PM     TSTM WND DMG     1 NE NEW TRIPOLI        40.70N 75.73W
07/21/2019                   LEHIGH             PA   FIRE DEPT/RESCUE

            WIRES DOWN ON ORIOLE RD. TIME ESTIMATED FROM
            RADAR.

0903 PM     TSTM WND DMG     1 E LOWHILL TWP         40.66N 75.66W
07/21/2019                   LEHIGH             PA   FIRE DEPT/RESCUE

            SEVERAL REPORTS OF TREES DOWN BETWEEN NEW
            TRIPOLI AND SCHNECKSVILLE. TREES AND POWER
            LINES DOWN BLOCKING SEVERAL ROADS. TIME
            ESTIMATED FROM RADAR.

0905 PM     TSTM WND GST     NORTH WHITEHALL TWP     40.69N 75.58W
07/21/2019  M49 MPH          LEHIGH             PA   PUBLIC

0910 PM     TSTM WND DMG     1 SSW WEST CATASAUQUA   40.64N 75.50W
07/21/2019                   LEHIGH             PA   FIRE DEPT/RESCUE

            WIRES DOWN ON MADISON LN. TIME ESTIMATED
            FROM RADAR.

0919 PM     TSTM WND GST     LEHIGH VALLEY INTERNATI 40.65N 75.45W
07/21/2019  M45 MPH          LEHIGH             PA   ASOS

            KABE ASOS.

0919 PM     TSTM WND DMG     1 ESE LIBERTY TWP       40.87N 74.94W
07/21/2019                   WARREN             NJ   FIRE DEPT/RESCUE

            DOWNED WIRES ON DANVILLE MOUNTAIN ROAD AND
            MIDLAND DRIVE. TIME ESTIMATED FROM RADAR.

0938 PM     TSTM WND DMG     3 WSW PLEASANT VALLEY   40.73N 75.06W
07/21/2019                   WARREN             NJ   FIRE DEPT/RESCUE

            DOWNED TREE IN ROADWAY ON ROUTE 57. TIME
            ESTIMATED FROM RADAR.

0942 PM     TSTM WND DMG     2 NNW WASHINGTON        40.78N 74.99W
07/21/2019                   WARREN             NJ   FIRE DEPT/RESCUE

            WIRES DOWN ON MINE HILL RD AND PINEHURST DR.
            TIME ESTIMATED FROM RADAR.

0943 PM     TSTM WND DMG     1 ENE WASHINGTON        40.77N 74.96W
07/21/2019                   WARREN             NJ   FIRE DEPT/RESCUE

            SEVERAL REPORTS OF TREES DOWN...INCLUDING AT
            PORT COLDEN ELEMENTARY SCHOOL. TIME
            ESTIMATED FROM RADAR.

0945 PM     TSTM WND DMG     1 SSW PORT MURRAY       40.77N 74.93W
07/21/2019                   WARREN             NJ   FIRE DEPT/RESCUE

            MULTIPLE TREES DOWN ON ANDERSON RD AND
            JACKSON ST. TIME ESTIMATED FROM RADAR.

1002 PM     TSTM WND DMG     TREXLERTOWN             40.55N 75.60W
07/21/2019                   LEHIGH             PA   PUBLIC

            MPING REPORT OF TREE BRANCHES AND POWER
            LINES DOWN AT THIS LOCATION. TIME ESTIMATED
            FROM RADAR.

1010 PM     TSTM WND DMG     ELKTON                  39.61N 75.83W
07/21/2019                   CECIL              MD   911 CALL CENTER

            MULTIPLE REPORTS OF TREES AND WIRES DOWN
            INCLUDING A TREE DOWN IN A RESIDENTIAL AREA
            IN ELKTON. TIME ESTIMATED FROM RADAR.

1013 PM     TSTM WND DMG     TREXLERTOWN             40.55N 75.60W
07/21/2019                   LEHIGH             PA   PUBLIC

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

1015 PM     TSTM WND GST     TREXLERTOWN             40.55N 75.59W
07/21/2019  E70 MPH          LEHIGH             PA   STORM CHASER

            CHASER ESTIMATES GUSTS UP TO 70MPH.

1025 PM     TSTM WND DMG     TREXLERTOWN             40.55N 75.60W
07/21/2019                   LEHIGH             PA   STORM CHASER

            MULTIPLE TRANSFORMERS EXPLODING WITH
            ESTIMATED GUSTS TO AT LEAST 60MPH.

1025 PM     TSTM WND DMG     EMMAUS                  40.53N 75.49W
07/21/2019                   LEHIGH             PA   FIRE DEPT/RESCUE

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

1030 PM     TSTM WND DMG     1 W SALISBURY TWP       40.59N 75.44W
07/21/2019                   LEHIGH             PA   FIRE DEPT/RESCUE

            DOWNED WIRES ON ELLSWORTH ST.

1030 PM     TSTM WND DMG     1 ENE SALISBURY TWP     40.59N 75.41W
07/21/2019                   LEHIGH             PA   FIRE DEPT/RESCUE

            DOWNED TREES AND WIRES ON CHURCH RD.

1037 PM     TSTM WND DMG     1 NNW HAMBURG           40.57N 76.00W
07/21/2019                   BERKS              PA   FIRE DEPT/RESCUE

            DOWNED TREE ON PORT CLINTON AVENUE NEAR
            KERNSVILLE DAM. TIME ESTIMATED FROM RADAR.

1050 PM     FLASH FLOOD      EMMAUS                  40.54N 75.49W
07/21/2019                   LEHIGH             PA   911 CALL CENTER

            WIDESPREAD ROADWAY FLOODING.

1050 PM     TSTM WND DMG     1 SSE CEDARVILLE        40.21N 75.66W
07/21/2019                   CHESTER            PA   COUNTY OFFICIAL

            DOWNED TREE ON ROUTE 100 NEAR TEMPLE ROAD.
            TIME ESTIMATED FROM RADAR.

1055 PM     TSTM WND DMG     EXETER TWP              40.32N 75.84W
07/21/2019                   BERKS              PA   FIRE DEPT/RESCUE

            REPORTS OF DOWNED TREES IN EXETER TWP. TIME
            ESTIMATED FROM RADAR.

1106 PM     TSTM WND DMG     1 N LYONS               40.50N 75.76W
07/21/2019                   BERKS              PA   FIRE DEPT/RESCUE

            DOWNED TREE ON BASTIAN ROAD IN MAXATAWNY
            TWP. TIME ESTIMATED FROM RADAR.

1115 PM     TSTM WND DMG     2 SSW ALBURTIS          40.48N 75.62W
07/21/2019                   BERKS              PA   FIRE DEPT/RESCUE

            DOWNED TREE NEAR THE INTERSECTION OF STATE
            STREET AND DOE MOUNTAIN LANE. TIME ESTIMATED
            FROM RADAR.

1119 PM     TSTM WND DMG     1 SSW ZIONSVILLE        40.47N 75.52W
07/21/2019                   LEHIGH             PA   FIRE DEPT/RESCUE

            DOWNED TREES AND WIRES ON CARLS HILL ROAD.
            TIME ESTIMATED FROM RADAR.

1119 PM     TSTM WND DMG     1 SSE ALBURTIS          40.50N 75.60W
07/21/2019                   LEHIGH             PA   FIRE DEPT/RESCUE

            REPORTS OF DOWNED TREES AND POWER LINES ON
            CHESTNUT ROAD. TIME ESTIMATED FROM RADAR.

1122 PM     TSTM WND DMG     1 SSE VERA CRUZ         40.50N 75.50W
07/21/2019                   LEHIGH             PA   FIRE DEPT/RESCUE

            DOWNED TREE ON VERA CRUZ ROAD. ANOTHER
            DOWNED TREE REPORTED ON ROUTE 29. TIME
            ESTIMATED FROM RADAR.

1157 PM     TSTM WND DMG     1 ESE LUMBERVILLE       40.40N 75.02W
07/21/2019                   BUCKS              PA   FIRE DEPT/RESCUE

            SEVERAL REPORTS OF TREE BRANCHES AND WIRES
            DOWN THROUGHOUT BUCKS COUNTY. A CLUSTER OF
            REPORTS OCCURRED ON ROUTE 32 NEAR
            LUMBERVILLE. TIME ESTIMATED FROM RADAR.

1208 AM     TSTM WND DMG     2 NNE PEMBERTON         40.00N 74.67W
07/22/2019                   BURLINGTON         NJ   FIRE DEPT/RESCUE

            DOWNED WIRES ON ODD FELLOWS ROAD. TIME
            ESTIMATED FROM RADAR.

1210 AM     FLASH FLOOD      LAURYS STATION          40.72N 75.53W
07/22/2019                   LEHIGH             PA   FIRE DEPT/RESCUE

            PA ROUTE 145 WAS CLOSED IN NORTH WHITEHALL
            TOWNSHIP DUE TO FLASH FLOODING.

&&

CMS/JEO/DI
Local storm report, Jul 22, 2:08 AM EDT, 3 hours 24 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
208 AM EDT MON JUL 22 2019

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

0940 PM     TSTM WND DMG     1 W WEST NOTTINGHAM     39.67N 76.10W
07/21/2019                   CECIL              MD   911 CALL CENTER

            TREES DOWN IN COLORA.

&&

DI
Local storm report, Jul 22, 2:09 AM EDT, 3 hours 23 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
209 AM EDT MON JUL 22 2019

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

1005 PM     TSTM WND DMG     ELKTON                  39.61N 75.83W
07/21/2019                   CECIL              MD   911 CALL CENTER

            TREES DOWN.

&&

DI
Local storm report, Jul 22, 2:25 AM EDT, 3 hours 7 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
225 AM EDT MON JUL 22 2019

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

1127 PM     TSTM WND DMG     1 WNW VERA CRUZ         40.51N 75.53W
07/21/2019                   LEHIGH             PA   EMERGENCY MNGR

            EMERGENCY MANAGEMENT REPORTS 4-5 LARGE TREES
            DOWN. SOME OF THE TREES STRUCK A HOME
            CAUSING CONSIDERABLE STRUCTURAL DAMAGE
            MAKING IT UNINHABITABLE. TIME ESTIMATED FROM
            RADAR.

&&

STAARMANN
Local storm report, Jul 22, 2:43 AM EDT, 2 hours 49 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
243 AM EDT MON JUL 22 2019

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

1210 AM     TSTM WND DMG     EAST PENN TWP           40.78N 75.73W
07/22/2019                   CARBON             PA   911 CALL CENTER

            TREE DOWN.

&&

DI

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 21, 8:25 PM EDTSpecial Weather StatementPHICarbon, Lehigh, Northampton50 min
Jul 21, 8:44 PM EDTSevere Thunderstorm WarningPHIBerks, Carbon, Lehigh, Monroe, Northampton46 min
Jul 21, 9:24 PM EDTSevere Thunderstorm WarningPHIBerks, Bucks, Lehigh, Northampton51 min
Jul 21, 9:30 PM EDTSevere Thunderstorm WarningPHIChester45 min
Jul 21, 9:58 PM EDTAreal Flood AdvisoryPHIBerks, Bucks, Lehigh, Montgomery, Northampton2 hr
Jul 21, 10:14 PM EDTSevere Thunderstorm WarningPHIBerks, Bucks, Lehigh, Montgomery, Northampton46 min
Jul 21, 10:30 PM EDTFlash Flood WarningPHIBerks, Lehigh, Northampton3 hr
Jul 21, 10:31 PM EDTFlash Flood WarningPHIBerks, Lehigh, Northampton3 hr
Jul 21, 10:35 PM EDTSevere Thunderstorm WarningPHIBerks, Lehigh40 min
Jul 21, 10:42 PM EDTSevere Thunderstorm WarningPHIBerks, Chester, Montgomery48 min
Jul 21, 10:54 PM EDTSevere Thunderstorm WarningPHIDelaware25 min
Jul 21, 10:58 PM EDTAreal Flood AdvisoryPHIBerks, Chester, Montgomery59 min
Jul 21, 11:05 PM EDTSevere Thunderstorm WarningPHIBerks, Bucks, Lehigh, Montgomery40 min
Jul 21, 11:31 PM EDTSevere Thunderstorm WarningPHIBucks, Montgomery, Philadelphia44 min
Jul 21, 11:38 PM EDTFlash Flood WarningPHIBerks, Carbon, Lehigh, Monroe, Northampton2 hr
Jul 21, 11:40 PM EDTSevere Thunderstorm WarningPHIBerks, Bucks, Carbon, Lehigh, Montgomery, Northampton50 min
Jul 22, 12:05 AM EDTSevere Thunderstorm WarningPHICarbon, Monroe40 min
Jul 22, 12:45 AM EDTSpecial Weather StatementPHIMonroe30 min
Jul 22, 1:11 AM EDTSpecial Weather StatementPHIMonroe34 min
Jul 22, 1:28 PM EDTSpecial Weather StatementPHIMonroe32 min
Jul 22, 1:50 PM EDTSpecial Weather StatementPHINorthampton25 min
Jul 22, 3:18 PM EDTSpecial Weather StatementPHIChester57 min
Jul 22, 3:27 PM EDTSevere Thunderstorm WarningPHIMonroe48 min
Jul 22, 3:33 PM EDTAreal Flood AdvisoryPHICarbon, Monroe, Northampton7 hr
Jul 22, 3:39 PM EDTSpecial Weather StatementPHIBerks51 min
Jul 22, 3:47 PM EDTSevere Thunderstorm WarningPHIChester, Delaware58 min
Jul 22, 4:11 PM EDTAreal Flood AdvisoryPHIBerks, Bucks, Chester, Lehigh, Montgomery, Northampton4 hr
Jul 22, 4:16 PM EDTSevere Thunderstorm WarningPHIChester, Delaware59 min
Jul 22, 4:40 PM EDTAreal Flood AdvisoryPHIDelaware, Montgomery, Philadelphia114 min
Jul 22, 4:55 PM EDTSevere Thunderstorm WarningPHIBerks, Bucks, Lehigh, Montgomery, Northampton50 min
Jul 22, 5:04 PM EDTSevere Thunderstorm WarningPHIChester, Delaware, Montgomery, Philadelphia41 min
Jul 22, 5:05 PM EDTFlash Flood WarningPHIBerks, Lehigh, Northampton4 hr
Jul 22, 5:14 PM EDTSevere Thunderstorm WarningPHIBucks, Chester, Delaware, Montgomery, Philadelphia61 min
Jul 22, 5:17 PM EDTSevere Thunderstorm WarningPHIBerks, Bucks, Lehigh, Montgomery, Northampton73 min
Jul 22, 5:34 PM EDTFlash Flood WarningPHIBucks, Lehigh, Montgomery, Northampton4 hr
Jul 22, 5:40 PM EDTSevere Thunderstorm WarningPHIBucks, Philadelphia80 min
Jul 22, 5:43 PM EDTAreal Flood AdvisoryPHIBucks3 hr
Jul 22, 5:50 PM EDTSevere Thunderstorm WarningPHIBucks40 min

Nearby

Areal Flood Warnings in Pennsylvania, 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.