Pennsylvania, 2019

Damaging Winds in Pennsylvania, May 30, 2019

May 30, 2019 · NWS PHI · 2 events in 2 counties and zones

Severe thunderstorm impacted the region.

Where it happened

Every event with a place to put it. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
2

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS PHI wrote it up.

Severe thunderstorm impacted the region.

What forecasters said that day

The local office's own words before the first event, 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 the first event at May 30, 2:31 PM EST, 12 minutes earlier.

Area forecast discussion, May 30, 2:31 PM EST, 12 minutes before
Area Forecast Discussion
National Weather Service Mount Holly NJ
331 PM EDT Thu May 30 2019

.SYNOPSIS...
An area of low pressure will move eastward along a frontal boundary
stalled out across the area this evening, pulling the frontal
boundary to our south. Weak high pressure is expected on Friday as a
backdoor cold front is expected to remain to our north Saturday.
Another low pressure system is expected to move along this boundary
to our north Sunday, pulling the frontal boundary across the area
Sunday into Sunday night. This low will strengthen to our north
Monday and Tuesday as high pressure builds to our south. Another
frontal boundary is expected around Thursday next week, with a pre
frontal trough developing ahead of it Wednesday into Wednesday
night.

&&

.NEAR TERM /UNTIL 6 AM FRIDAY MORNING/...
Another round of Severe thunderstorms will likely affect much of the
area this evening with Severe Thunderstorm Watch 297 in effect until
900 PM. The activity is already developing W of the area presently
and will intensify with the warm and humid airmass in place. The
cooties not in the watch may also have some tstms also. The
Flash Flood Watch will also remain up since PWAT values remain
rather high for this time of year. After the convection dies
down, skies will become partly cloudy overnight. There will also
be some fog across the areas that receive the rains this
evening. Lows tonight will be in the upper 50s to low 60s across
the north to the mid/upper 60s S/E.

&&

.SHORT TERM /6 AM FRIDAY MORNING THROUGH 6 PM FRIDAY/...
Weak high pressure will be building into the area Friday. A dry
day is expected, at last. High temperatures will range from the
upper 70s across the southern Poconos and northern NJ to the
low 80s over metro Philadelphia and Delmarva.

&&

.LONG TERM /FRIDAY NIGHT THROUGH THURSDAY/...
The weekend will see a robust shortwave trough rotating around the
base of a broad upper low over Ontario. As the shortwave pushes into
the Great Lakes, a surface frontal system will begin to approach
from the northwest. Ahead of the front and an associated surface
low, winds will start to turn out of the south and southwest on
Saturday. For this reason, a warm day is likely even with breakdown
of the Southeast ridge which will start to favor a cooler pattern
overall by early next week. So temperatures will warm into the 80s
Saturday after a dry and seasonable night Friday in between weather
systems. As the surface front approaches, we will again have to
watch for a shower and storm threat. However, moisture is limited on
Saturday as the winds are only starting to turn southerly after the
northwest flow Friday. Combined with limited forcing from the front
still being rather far northwest, most of Saturday should be dry,
with an afternoon shower or storm possible especially north of I-78.
As the front gets closer, additional showers are possible Saturday
night. The front should slow down as it approaches, and that will
set up a more unsettled day on Sunday. More robust southwesterly
flow will favor warmer temperatures, but increased cloud cover
should keep the highs near to a little below those of Saturday. With
better moisture and improved forcing, more widespread showers and
thunderstorms are possible Sunday. Severe weather parameters look to
have become a little more favorable for Sunday. MLCAPE will likely
build in excess of 1000J/kg during the afternoon with dew points
getting into the mid 60s and much improved forcing with the frontal
boundary nearby. Wind fields, however, are not very impressive, so
this could be a limiting factor. Nonetheless, widespread showers and
storms are likely with a few potentially strong to severe especially
if there is some morning sunshine to build instability and if wind
fields trend a little more favorable. By Sunday night, the cold
front will move through, and winds will shift sharply to northwest
with any lingering showers moving offshore.

On Monday, an area of low pressure will strengthen to our north,
while high pressure moves through the Ohio River Valley to our west.
This will likely create gusty winds on Monday, with gusts of at
least 20-30 mph possible. There could be enough low-mid level lift
and moisture across portions of northeastern Pennsylvania and
northern New Jersey on Monday for some isolated showers to develop
as a couple of short waves move across the area. Any shower activity
will diminish through the day, and Monday night is expected to
remain dry, but may continue to be breezy at times.

On Tuesday, the breezy conditions will likely continue as the
pressure gradient remains fairly tight between the low pressure to
our north and the high to our south. Dry weather is expected to
continue into Tuesday and Tuesday night.

On Wednesday, the low continues to move north, and the high moves
offshore of the southeast coast, so they lose their effect on our
area. Behind these systems, a pre frontal trough is expected to
develop across our area later Wednesday into Wednesday night ahead
of an approaching cold front. This will lead to an increase in
shower/thunderstorm chances later Wednesday into Wednesday night.
With a fairly tight pressure gradient, winds could continue to be
gusty through the day Wednesday.

A cold front is forecast to move across the area on Thursday. We are
a week away, but long range guidance indicates instability building
during the day, so thunderstorms could develop during the day
Thursday. The pre frontal trough may also focus shower and
thunderstorm activity during the day as well.

&&

.AVIATION /20Z THURSDAY THROUGH TUESDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG,
KMIV, KACY and surrounding areas.

Tonight... Lower CIGS/VSBYS expected in showers and tstms across the
terminals this evening before the rains end from W to E between 02Z
and 04Z. Probably MVFR in most showers/tstms, but if a cell moves
directly over a location, LIFR is possible for short periods.
Outside of the convection, mostly VFR with mostly S or SW winds.
Areas of fog possible near the shore through the evening.

Friday...There will be areas of fog across the terminals Friday
morning, like today, in areas that get the heavier rains this
evening. Once the daytime mixing begins, the fog should dissipate.
After that, VFR conditions are expected the rest of the day. Winds
will be mostly West or Northwest around 10 knots.

Outlook...

Saturday-Saturday night... VFR most of the day Saturday. Chance of
showers or thunderstorms late in the afternoon and overnight
especially north of PHL. Light and variable winds becoming light out
of the southwest Saturday afternoon.

Sunday-Sunday night... Scattered showers and thunderstorms with
associated restrictions. Southwest wind around 5 to 10 kt becoming
northwest at night with gusts to 20 kt possible overnight.

Monday-Tuesday...VFR conditions expected. Gusty west to northwest
wind expected, with gusts of 20-30 knots possible, especially
Monday.

&&

.MARINE...
Tonight...Overall, conditions will remain below SCA criteria. An
important exception will be localized TSTMS with higher winds and
seas. Special Marine Warning products will likely be issued for some
of the waters through the evening. A severe thunderstorm Watch is in
effect until 900 PM.

Friday...Fair weather is expected through the day. Winds and seas
will remain below SCA conditions. Seas on the ocean mostly around 3
ft.

Outlook...

Saturday-Sunday night... Winds and seas are expected to remain below
SCA criteria for the weekend. A slight chance of showers or
thunderstorms late Saturday with more widespread showers or storms
Sunday. Southwesterly winds may gust near or a little above 20 kt on
Sunday afternoon and evening.

Monday-Tuesday...Small Craft Advisory conditions possible with
west to northwest wind gusts of 25-30 knots possible.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...Flash Flood Watch until 10 PM EDT this evening for PAZ054-055-
     060>062-070-071-101>106.
NJ...Flash Flood Watch until 10 PM EDT this evening for NJZ001-
     007>010-012>020-026-027.
DE...Flash Flood Watch until 10 PM EDT this evening for DEZ001.
MD...None.
MARINE...None.

&&

Synopsis...Robertson
Near Term...O'Hara
Short Term...O'Hara
Long Term...Robertson/O'Brien
Aviation...Robertson/O'Brien/O'Hara
Marine...Robertson/O'Brien/O'Hara
Hazardous weather outlook, May 30, 2:37 PM EST, 6 minutes before
Hazardous Weather Outlook
National Weather Service Mount Holly NJ
337 PM EDT Thu May 30 2019

DEZ001-NJZ007-009-015>019-027-PAZ060>062-070-071-101>106-311945-
New Castle-Warren-Hunterdon-Mercer-Salem-Gloucester-Camden-
Northwestern Burlington-Southeastern Burlington-Berks-Lehigh-
Northampton-Delaware-Philadelphia-Western Chester-Eastern Chester-
Western Montgomery-Eastern Montgomery-Upper Bucks-Lower Bucks-
337 PM EDT Thu May 30 2019

...FLASH FLOOD WATCH IN EFFECT UNTIL 10 PM EDT THIS EVENING...
...SEVERE THUNDERSTORM WATCH 297 IN EFFECT UNTIL 9 PM EDT THIS
EVENING...

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

.DAY ONE...This afternoon 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.
   Severe Thunderstorm Watch.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

DEZ002-003-MDZ008-012-015-019-020-NJZ021>023-311945-
Kent-Inland Sussex-Cecil-Kent MD-Queen Annes-Talbot-Caroline-
Cumberland-Atlantic-Cape May-
337 PM EDT Thu May 30 2019

...SEVERE THUNDERSTORM WATCH 297 IN EFFECT UNTIL 9 PM EDT THIS
EVENING...

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

.DAY ONE...This afternoon and 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...Friday through Wednesday.

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.

NJZ001-008-010-012-013-020-PAZ054-055-311945-
Sussex-Morris-Somerset-Middlesex-Western Monmouth-Ocean-Carbon-
Monroe-
337 PM EDT Thu May 30 2019

...FLASH FLOOD WATCH IN EFFECT UNTIL 10 PM EDT THIS EVENING...

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

.DAY ONE...This afternoon 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 also the risk of severe weather this afternoon into this
evening as thunderstorms could produce damaging winds and large
hail.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

NJZ014-026-311945-
Eastern Monmouth-Coastal Ocean-
337 PM EDT Thu May 30 2019

...FLASH FLOOD WATCH IN EFFECT UNTIL 10 PM EDT THIS EVENING...

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

.DAY ONE...This afternoon 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.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

DEZ004-NJZ024-025-311945-
Delaware Beaches-Atlantic Coastal Cape May-Coastal Atlantic-
337 PM EDT Thu May 30 2019

...SEVERE THUNDERSTORM WATCH 297 IN EFFECT UNTIL 9 PM EDT THIS
EVENING...

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

.DAY ONE...This afternoon and 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...Friday through Wednesday.

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.

ANZ450>455-311945-
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-
337 PM EDT Thu May 30 2019

This Hazardous Weather Outlook is for Atlantic coastal waters.

.DAY ONE...This afternoon and tonight.

There is a low probability for widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

There is a low probability for widespread hazardous weather.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

ANZ430-431-311945-
Delaware Bay waters north of East Point NJ to Slaughter Beach DE-
Delaware Bay waters south of East Point NJ to Slaughter Beach DE-
337 PM EDT Thu May 30 2019

...SEVERE THUNDERSTORM WATCH 297 IN EFFECT UNTIL 9 PM EDT THIS
EVENING...

This Hazardous Weather Outlook is for Delaware Bay Waters.

.DAY ONE...This afternoon and 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...Friday through Wednesday.

There is a low probability for widespread hazardous weather.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Local storm report, May 30, 12:22 PM EST, 2 hours 21 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
122 PM EDT THU MAY 30 2019

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

0500 PM     TSTM WND DMG     UPPER SALFORD TWP       40.29N 75.45W
05/29/2019                   MONTGOMERY         PA   PUBLIC

            TREES DOWN IN WOXALL/UPPER SALFORD TWP.

&&
Local storm report, May 30, 12:25 PM EST, 2 hours 18 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
125 PM EDT THU MAY 30 2019

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

0655 PM     TSTM WND DMG     HYDE PARK               39.75N 75.64W
05/29/2019                   NEW CASTLE         DE   PUBLIC

            TREES REPORTED DOWN IN BRANDYWINE SPRINGS.
            TIME ESTIMATED FROM RADAR.

0535 PM     TSTM WND DMG     BOYERTOWN               40.34N 75.64W
05/29/2019                   BERKS              PA   PUBLIC

            TREES REPORTED DOWN IN BOYERTOWN. TIME
            ESTIMATED FROM RADAR.

&&
Local storm report, May 30, 2:19 PM EST, 24 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
319 PM EDT THU MAY 30 2019

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

0542 PM     TSTM WND DMG     VERNFIELD               40.30N 75.41W
05/29/2019                   MONTGOMERY         PA   PUBLIC

            TREES SNAPPED AND SOME UPROOTED, SHINGLES
            TORN OFF, BARN ABOUT 1/2 MILE AWAY WAS BLOWN
            DOWN. ALSO REPORTED HAIL THE SIZE OF
            NICKELS. TIME ESTIMATED FROM RADAR.

&&
Local storm report, May 30, 2:22 PM EST, 21 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
322 PM EDT THU MAY 30 2019

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

0245 PM     HAIL             TREXLERTOWN             40.55N 75.60W
05/29/2019  M1.00 INCH       LEHIGH             PA   PUBLIC

0250 PM     HAIL             MERTZTOWN               40.51N 75.67W
05/29/2019  M2.00 INCH       BERKS              PA   TRAINED SPOTTER

            HAIL UP TO 2 INCHES REPORTED IN MERTZTOWN.

0252 PM     HAIL             KUTZTOWN                40.52N 75.78W
05/29/2019  M0.75 INCH       BERKS              PA   PUBLIC

0300 PM     HAIL             EMMAUS                  40.53N 75.49W
05/29/2019  M1.25 INCH       LEHIGH             PA   TRAINED SPOTTER

0300 PM     HAIL             BREINIGSVILLE           40.54N 75.63W
05/29/2019  M1.00 INCH       LEHIGH             PA   TRAINED SPOTTER

0305 PM     HAIL             TREXLERTOWN             40.55N 75.60W
05/29/2019  M0.25 INCH       LEHIGH             PA   TRAINED SPOTTER

0306 PM     HAIL             TREXLERTOWN             40.55N 75.60W
05/29/2019  M0.75 INCH       LEHIGH             PA   TRAINED SPOTTER

0308 PM     HAIL             MACUNGIE                40.52N 75.56W
05/29/2019  M1.75 INCH       LEHIGH             PA   TRAINED SPOTTER

0315 PM     HAIL             EMMAUS                  40.54N 75.49W
05/29/2019  E1.50 INCH       LEHIGH             PA   TRAINED SPOTTER

0320 PM     HAIL             QUAKERTOWN              40.44N 75.34W
05/29/2019  M1.00 INCH       BUCKS              PA   PUBLIC

0326 PM     HAIL             5 SW PLEASANT VALLEY    40.47N 75.36W
05/29/2019  M2.00 INCH       BUCKS              PA   TRAINED SPOTTER

            HAIL FELL FOR APPROX 10 MINUTES. WIDESPREAD
            QUARTER TO HALF DOLLAR SIZED HAIL WITH 2
            INCH HAIL INCLUDED.

0335 PM     HAIL             LANSFORD                40.83N 75.88W
05/29/2019  M0.50 INCH       CARBON             PA   TRAINED SPOTTER

0335 PM     TSTM WND DMG     2 NE ANALOMINK          41.07N 75.19W
05/29/2019                   MONROE             PA   DEPT OF HIGHWAYS

            DOWNED TREE IN WIRES ON SCHOOL HOUSE RD.
            TIME ESTIMATED FROM RADAR.

0355 PM     HAIL             QUAKERTOWN              40.44N 75.34W
05/29/2019  M1.50 INCH       BUCKS              PA   PUBLIC

0358 PM     HAIL             LUMBERVILLE             40.41N 75.04W
05/29/2019  E1.75 INCH       BUCKS              PA   PUBLIC

0403 PM     HAIL             EFFORT                  40.94N 75.44W
05/29/2019  E0.88 INCH       MONROE             PA   TRAINED SPOTTER

0403 PM     TSTM WND GST     EFFORT                  40.94N 75.44W
05/29/2019  E60 MPH          MONROE             PA   TRAINED SPOTTER

0420 PM     HAIL             HOPEWELL                40.39N 74.76W
05/29/2019  E1.00 INCH       MERCER             NJ   PUBLIC

0420 PM     HAIL             EAST AMWELL             40.48N 74.79W
05/29/2019  M1.50 INCH       HUNTERDON          NJ   TRAINED SPOTTER

0423 PM     HAIL             READING REGIONAL AIRPOR 40.37N 75.96W
05/29/2019  E0.25 INCH       BERKS              PA   TRAINED SPOTTER

0424 PM     HAIL             HOPEWELL                40.39N 74.76W
05/29/2019  E0.70 INCH       MERCER             NJ   TRAINED SPOTTER

0430 PM     TSTM WND DMG     2 SW SPRING TWP         40.30N 76.03W
05/29/2019                   BERKS              PA   EMERGENCY MNGR

            MULTIPLE LARGE TREES SNAPPED OR UPROOTED.
            PUBLIC REPORT RELAYED BY EMERGENCY
            MANAGEMENT. TIME ESTIMATED.

0432 PM     TSTM WND DMG     2 NNW GERYVILLE         40.45N 75.49W
05/29/2019                   LEHIGH             PA   DEPT OF HIGHWAYS

            DOWNED TREE ON WIRES ON VERA CRUZ RD. TIME
            ESTIMATED FROM RADAR.

0442 PM     HAIL             YARDVILLE               40.18N 74.67W
05/29/2019  E1.25 INCH       MERCER             NJ   PUBLIC

0446 PM     HAIL             1 SE YARDVILLE          40.17N 74.65W
05/29/2019  E0.88 INCH       MERCER             NJ   TRAINED SPOTTER

0448 PM     TSTM WND DMG     PERKASIE                40.38N 75.30W
05/29/2019                   BUCKS              PA   PUBLIC

            AT LEAST ONE LARGE TREE DOWN. TIME ESTIMATED
            FROM RADAR.

0450 PM     HAIL             BOYERTOWN               40.33N 75.64W
05/29/2019  E0.25 INCH       BERKS              PA   TRAINED SPOTTER

0455 PM     TSTM WND DMG     PERKIOMENVILLE          40.33N 75.48W
05/29/2019                   MONTGOMERY         PA   TRAINED SPOTTER

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

0455 PM     TSTM WND DMG     3 W LOWER FREDERICK TWP 40.27N 75.52W
05/29/2019                   MONTGOMERY         PA   PUBLIC

            NEIFFER RD CLOSED FROM RTE 73 TO RIDGE PIKE
            DUE TO DOWNED TREES. TIME ESTIMATED FROM
            RADAR.

0455 PM     TSTM WND DMG     1 SE GREEN LANE         40.33N 75.45W
05/29/2019                   MONTGOMERY         PA   FIRE DEPT/RESCUE

            NUMEROUS TREES DOWN. TIME ESTIMATED FROM
            RADAR.

0456 PM     HAIL             GREEN LANE              40.34N 75.47W
05/29/2019  E1.00 INCH       MONTGOMERY         PA   PUBLIC

0456 PM     TSTM WND GST     1 N GREEN LANE          40.35N 75.47W
05/29/2019  E55 MPH          MONTGOMERY         PA   TRAINED SPOTTER

0500 PM     TSTM WND DMG     UPPER SALFORD TWP       40.29N 75.45W
05/29/2019                   MONTGOMERY         PA   PUBLIC

            TREES DOWN IN WOXALL/UPPER SALFORD TWP.

0505 PM     TSTM WND DMG     LEHIGH TWP              40.76N 75.53W
05/29/2019                   NORTHAMPTON        PA   LAW ENFORCEMENT

            WIRES DOWN, ALONG WITH LARGE BRANCHES. TIME
            ESTIMATED FROM RADAR.

0512 PM     TSTM WND GST     1 ENE HAMBURG           40.57N 75.96W
05/29/2019  M66 MPH          BERKS              PA   PUBLIC

            MEASURED BY A PERSONAL WEATHER STATION. TIME
            ESTIMATED FROM RADAR.

0515 PM     HAIL             TELFORD                 40.32N 75.33W
05/29/2019  M0.75 INCH       MONTGOMERY         PA   TRAINED SPOTTER

0515 PM     HAIL             2 S FREEHOLD TWP        40.21N 74.29W
05/29/2019  E1.00 INCH       MONMOUTH           NJ   PUBLIC

0515 PM     TSTM WND DMG     DOYLESTOWN              40.31N 75.13W
05/29/2019                   BUCKS              PA   PUBLIC

            TREES AND POWER LINES REPORTED DOWN.

0521 PM     FLOOD            HACKETTSTOWN            40.85N 74.83W
05/29/2019                   WARREN             NJ   TRAINED SPOTTER

            WATER COVERING A FEW ROADS IN HACKETTSTOWN.

0525 PM     TSTM WND DMG     2 SSE ZIONSVILLE        40.45N 75.49W
05/29/2019                   LEHIGH             PA   DEPT OF HIGHWAYS

            TREE DOWN ONTO WIRES. TIME ESTIMATED FROM
            RADAR.

0530 PM     TSTM WND DMG     2 WSW HOPEWELL          40.37N 74.80W
05/29/2019                   MERCER             NJ   DEPT OF HIGHWAYS

            DOWNED TREE AND WIRES ON NJ-31 IN BOTH
            DIRECTIONS NORTH OF CR-612. ALL LANES
            CLOSED. TIME ESTIMATED FROM RADAR.

0533 PM     TSTM WND DMG     1 NW BLAIRSTOWN TWP     40.99N 74.96W
05/29/2019                   WARREN             NJ   LAW ENFORCEMENT

            WIRES/TREE DOWN ON THE ROADS.

0535 PM     TSTM WND DMG     1 SSE NEWTOWN           40.21N 74.93W
05/29/2019                   BUCKS              PA   STORM CHASER

            MANY LARGE TREE BRANCHES (6 IN DIAMETER)
            BROKEN. TIME ESTIMATED FROM RADAR.

0535 PM     TSTM WND DMG     2 SSE MARLBOROUGH TWP   40.32N 75.44W
05/29/2019                   MONTGOMERY         PA   TRAINED SPOTTER

            PHOTO OF A LARGE TREE SNAPPED NEAR THE BASE.

0535 PM     TSTM WND DMG     BOYERTOWN               40.34N 75.64W
05/29/2019                   BERKS              PA   PUBLIC

            TREES REPORTED DOWN IN BOYERTOWN. TIME
            ESTIMATED FROM RADAR.

0538 PM     TSTM WND DMG     HARLEYSVILLE            40.28N 75.40W
05/29/2019                   MONTGOMERY         PA   PUBLIC

            MULTIPLE TREES REPORTED DOWN AT THE LANDIS
            PARKING LOT IN HARLEYSVILLE. TIME ESTIMATED
            FROM RADAR.

0540 PM     HAIL             1 N COLEBROOKDALE TWP   40.35N 75.66W
05/29/2019  E0.25 INCH       BERKS              PA   TRAINED SPOTTER

0542 PM     TSTM WND DMG     VERNFIELD               40.30N 75.41W
05/29/2019                   MONTGOMERY         PA   PUBLIC

            TREES SNAPPED AND SOME UPROOTED, SHINGLES
            TORN OFF, BARN ABOUT 1/2 MILE AWAY WAS BLOWN
            DOWN. ALSO REPORTED HAIL THE SIZE OF
            NICKELS. TIME ESTIMATED FROM RADAR.

0544 PM     TSTM WND DMG     PRINCETON               40.35N 74.66W
05/29/2019                   MERCER             NJ   DEPT OF HIGHWAYS

            DOWNED UTILITY POLE AND WIRES ON NJ-27 IN
            BOTH DIRECTIONS AT CR 571 AND WASHINGTON ST.
            ALL LANES CLOSED.

0550 PM     HAIL             RICHLAND TWP            40.49N 75.34W
05/29/2019  E1.00 INCH       BUCKS              PA   PUBLIC

0550 PM     TSTM WND DMG     LOWER FREDERICK TWP     40.30N 75.46W
05/29/2019                   MONTGOMERY         PA   EMERGENCY MNGR

            HOME REPORTED DAMAGED ON WALNUT LN WITH
            RESIDENT NEEDING ASSISTANCE TO BE EXTRACTED.
            TIME ESTIMATED FROM RADAR.

0600 PM     HAIL             2 S HORSHAM TWP         40.18N 75.18W
05/29/2019  M0.88 INCH       MONTGOMERY         PA   PUBLIC

0600 PM     HAIL             HATBORO                 40.17N 75.11W
05/29/2019  E0.88 INCH       MONTGOMERY         PA   PUBLIC

0602 PM     HAIL             1 WSW HORSHAM           40.17N 75.15W
05/29/2019  E0.70 INCH       MONTGOMERY         PA   PUBLIC

0605 PM     HAIL             WARMINSTER TWP          40.20N 75.09W
05/29/2019  M0.75 INCH       BUCKS              PA   PUBLIC

0605 PM     HAIL             BENSALEM                40.11N 74.93W
05/29/2019  E1.00 INCH       BUCKS              PA   PUBLIC

0606 PM     TSTM WND DMG     1 ENE BERWYN            40.05N 75.43W
05/29/2019                   CHESTER            PA   DEPT OF HIGHWAYS

            TREE DOWN ON WATERLOO RD. TIME ESTIMATED
            FROM RADAR.

0610 PM     HAIL             WILLOW GROVE            40.14N 75.12W
05/29/2019  M1.00 INCH       MONTGOMERY         PA   PUBLIC

0610 PM     TSTM WND GST     1 E NEWTOWN             40.23N 74.91W
05/29/2019  E70 MPH          BUCKS              PA   STORM CHASER

            TIME ESTIMATED FROM RADAR.

0610 PM     HAIL             2 N LOWER MORELAND TWP  40.16N 75.06W
05/29/2019  E1.00 INCH       MONTGOMERY         PA   PUBLIC

0612 PM     HAIL             3 W LOWER SOUTHAMPTON T 40.17N 75.04W
05/29/2019  E0.70 INCH       BUCKS              PA   PUBLIC

0615 PM     TSTM WND GST     NORTHEAST PHILADELPHIA  40.08N 75.01W
05/29/2019  M59 MPH          PHILADELPHIA       PA   ASOS

0620 PM     FLASH FLOOD      FEASTERVILLE-TREVOSE    40.13N 74.97W
05/29/2019                   BUCKS              PA   TRAINED SPOTTER

            VIDEO RECEIVED OF FAST MOVING WATER FLOWING
            DOWN A ROADWAY.

0622 PM     FLASH FLOOD      3 W LOWER SOUTHAMPTON T 40.17N 75.04W
05/29/2019                   BUCKS              PA   PUBLIC

            AT THE INTERSECTION OF STREET ROAD AND
            DAVISVILLE ROAD, THE ROAD IMPASSIBLE.
            MOTORISTS STUCK IN WATER.

0625 PM     TSTM WND DMG     2 SW KENNEDYVILLE       39.29N 76.03W
05/29/2019                   KENT               MD   PUBLIC

            NUMEROUS TREES DOWN ON STILL POND ROAD.

0630 PM     HAIL             MOORESTOWN              39.97N 74.94W
05/29/2019  E0.70 INCH       BURLINGTON         NJ   PUBLIC

0635 PM     TSTM WND DMG     1 ENE BERWYN            40.05N 75.43W
05/29/2019                   CHESTER            PA   DEPT OF HIGHWAYS

            TREE DOWN.

0645 PM     TSTM WND DMG     1 WSW HYDE PARK         39.74N 75.67W
05/29/2019                   NEW CASTLE         DE   TRAINED SPOTTER

            SEVERAL LARGE TREES DOWN IN THE SHERWOOD II
            DEVELOPMENT. TIME ESTIMATED FROM RADAR.

0650 PM     TSTM WND DMG     ODESSA                  39.46N 75.66W
05/29/2019                   NEW CASTLE         DE   TRAINED SPOTTER

            TREE REPORTED DOWN IN ODESSA. TIME ESTIMATED
            FROM RADAR.

0655 PM     TSTM WND DMG     HYDE PARK               39.75N 75.64W
05/29/2019                   NEW CASTLE         DE   PUBLIC

            TREES REPORTED DOWN IN BRANDYWINE SPRINGS.
            TIME ESTIMATED FROM RADAR.

0657 PM     TSTM WND GST     NEW CASTLE COUNTY AIRPO 39.67N 75.61W
05/29/2019  M58 MPH          NEW CASTLE         DE   ASOS

0700 PM     FLASH FLOOD      1 SSE MARLBOROUGH TWP   40.33N 75.45W
05/29/2019                   MONTGOMERY         PA   FIRE DEPT/RESCUE

            CORRECTS PREVIOUS TSTM WND DMG REPORT FROM 1
            SSE MARLBOROUGH TWP. SEVERAL ROADS
            IMPASSABLE IN SUMNEYTOWN.

0706 PM     MARINE TSTM WIND 7 W FORTESCUE           39.25N 75.31W
05/29/2019  M66 MPH          ANZ430             NJ   MESONET

0708 PM     TSTM WND DMG     GREENSBORO              38.98N 75.81W
05/29/2019                   CAROLINE           MD   EMERGENCY MNGR

            MULTIPLE TREES AND POWER LINES DOWN. TIME
            ESTIMATED FROM RADAR.

0711 PM     MARINE TSTM WIND 1 ESE TUCKERTON         39.60N 74.31W
05/29/2019  M40 MPH          OCEAN              NJ   MESONET

0720 PM     FLASH FLOOD      RIVERSIDE               40.04N 74.96W
05/29/2019                   BURLINGTON         NJ   PUBLIC

            PHOTO SENT OF STREET FLOODING.

0730 PM     FLASH FLOOD      DELRAN                  40.02N 74.95W
05/29/2019                   BURLINGTON         NJ   NWS EMPLOYEE

            MULTIPLE ROADS IMPASSABLE.

0735 PM     TSTM WND DMG     1 SE LAUREL LAKE        39.32N 75.02W
05/29/2019                   CUMBERLAND         NJ   TRAINED SPOTTER

            A FEW TEES DOWN, INCLUDING ONE DOWNED INTO
            WIRES AT THE INTERSECTION OF EVERGREEN AND
            SPRING GARDEN. TIME ESTIMATED FROM RADAR.

0800 PM     FLASH FLOOD      1 WNW BRISTOL           40.10N 74.87W
05/29/2019                   BUCKS              PA   TRAINED SPOTTER

            SEVERAL REPORTS OF WATER RESCUES FROM THE
            AREAS OF BRISTOL, BENSALEM, AND MIDDLETOWN
            TOWNSHIP.

0845 PM     MARINE TSTM WIND LEWES                   38.78N 75.13W
05/29/2019  M67 MPH          ANZ431             DE   MESONET

0915 PM     HEAVY RAIN       MEDFORD                 39.89N 74.83W
05/29/2019  M3.40 INCH       BURLINGTON         NJ   TRAINED SPOTTER

            UPDATES PREVIOUS HEAVY RAIN REPORT FROM
            MEDFORD WITH FINAL TOTAL.

&&
Special weather statement, May 30, 2:42 PM EST, 1 minute before
Special Weather Statement
National Weather Service Mount Holly NJ
342 PM EDT Thu May 30 2019

DEZ002-MDZ008-012-015-020-302015-
Kent-Queen Anne's-Cecil-Kent-Caroline-
342 PM EDT Thu May 30 2019

...A STRONG THUNDERSTORM WILL AFFECT WEST CENTRAL KENT...QUEEN
ANNE'S...NORTHEASTERN CAROLINE...KENT AND SOUTHWESTERN CECIL
COUNTIES...

At 341 PM EDT, a strong thunderstorm was located over Gibson Island,
moving east at 45 mph.

Wind gusts up to 50 mph and pea size hail are possible with this
storm.

Locations impacted include...
Centerville, Chestertown, Centreville, Greensboro, Oakland, Ridgely,
Rock Hall, Church Hill, Millington, Sudlersville, Betterton,
Goldsboro, Hartly, Old Town, Starr, Jumptown, Newtown, Morgnec,
Crumpton and Sandtown.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

LAT...LON 3904 7631 3898 7628 3897 7622 3900 7617
      3903 7624 3909 7623 3917 7628 3926 7622
      3929 7617 3932 7618 3941 7602 3952 7598
      3955 7603 3955 7608 3963 7615 3964 7607
      3919 7571 3892 7572 3897 7634
TIME...MOT...LOC 1941Z 271DEG 40KT 3908 7644

NC

The radar

The Binghamton radar (KBGM), 135 km away, was scanning. The volume nearest the first event began at 19:42 UTC.

Open the radar archive at this moment

Event by event

2 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Monroe

When
May 30, 2:43 PM EST
Where
Monroe County, 0.87 mi SW of Swiftwater
Measured
50 kt (58 mph) estimated gust
Reported by
Public
Coordinates
41.090, -75.340

Tree down on Summit Road near Swiftwater forcing its closure. Time estimated from radar.

Thunderstorm Wind, Carbon

When
May 30, 3:55 PM EST
Where
Carbon County, 1.25 mi ESE of Albrightsville
Measured
50 kt (58 mph) estimated gust
Reported by
Public
Coordinates
41.010, -75.600

Trees and power lines down in Albrightsville.

What these are

Thunderstorm Wind
Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Pennsylvania in 2019Every state in 2019This day in weather historyWarnings in Pennsylvania, May 2019

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 822666, 822667.