Alert archive / Pennsylvania / Snow Squall Warnings in 2024

Snow Squall Warning 16, NWS Philadelphia/Mount Holly

February 17, 2024Warren County, New Jersey; 4 counties in Pennsylvania

NWS Philadelphia/Mount Holly issued this snow squall warning at Feb 17, 2024, 2:42 PM EST for Warren County, New Jersey; 4 counties in Pennsylvania. It was in force for 33 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
Feb 17, 2024, 2:42 PM EST (19:42 UTC)
Expired
Feb 17, 2024, 3:15 PM EST
In force
33 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

Counties Warren County, NJ, Carbon County, PA, Lehigh County, PA, Monroe County, PA, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 126 km from the middle of the area, began a volume at 19:47 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 7.7 hours before the alert went out and 220 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2024-02-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2024-02-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 225 square meters per square second.1939587897117136156175Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
650 m above ground
0-6 km bulk shear
86 kt
0-1 km storm-relative helicity
225 m²/s²
0-3 km storm-relative helicity
248 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

927 
WWUS51 KPHI 171942
SQWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Snow Squall Warning
National Weather Service Mount Holly NJ
242 PM EST Sat Feb 17 2024

NJC041-PAC025-077-089-095-172015-
/O.NEW.KPHI.SQ.W.0016.240217T1942Z-240217T2015Z/
Warren NJ-Lehigh PA-Carbon PA-Monroe PA-Northampton PA-
242 PM EST Sat Feb 17 2024

The National Weather Service in Mount Holly NJ has issued a

* Snow Squall Warning for...
  West central Warren County in northwestern New Jersey...
  Northeastern Lehigh County in eastern Pennsylvania...
  Southeastern Carbon County in northeastern Pennsylvania...
  Southwestern Monroe County in northeastern Pennsylvania...
  Northampton County in eastern Pennsylvania...

* Until 315 PM EST.

* At 242 PM EST, a dangerous snow squall was located over
  Danielsville, or 11 miles east of Lehighton, moving southeast at 35
  mph.

  HAZARD...Flash freeze on roads. Intense bursts of heavy snow and 
           gusty winds leading to blowing snow and rapidly falling 
           visibility. Wind gusts up to 35 mph.

  SOURCE...Radar and webcams.

  IMPACT...Travel will become difficult and potentially dangerous 
           within minutes.

This includes the following highways...
 Northeast Extension between mile markers 61 and 70.
 Interstate 78 in Pennsylvania between mile markers 60 and 76.

Locations impacted include...
Allentown, Easton, Bethlehem, Forks, Northampton, Wilson, Hellertown,
Nazareth, Palmerton, Slatington, Pen Argyl, Wind Gap, Bath, Harmony,
Walnutport, Belfast, West Easton, Tatamy, Steuben, and Glendon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Wet roadways will quickly freeze. Black ice will cause roads,
bridges, and overpasses to become slick and dangerous. Slow down and
be prepared for a sudden loss of traction.

Slow Down! Rapid changes in visibility and road conditions are
expected with this dangerous snow squall. Be alert for sudden
whiteout conditions.

&&

LAT...LON 4072 7571 4094 7546 4078 7505 4053 7541
TIME...MOT...LOC 1942Z 306DEG 29KT 4077 7552 

SNOW SQUALL...OBSERVED

$$

Wunderlin

What forecasters said that day

The local office's own words before this snow squall 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 snow squall warning went out at Feb 17, 1:02 PM EST, 1 hour 40 minutes earlier.

Area forecast discussion, Feb 17, 1:02 PM EST, 1 hour 40 minutes before
Area Forecast Discussion
National Weather Service Mount Holly NJ
102 PM EST Sat Feb 17 2024

.SYNOPSIS...
Low pressure will quickly move offshore of the Mid-Atlantic this
morning. High pressure then builds closer to our Sunday into
Monday. A weak cold front may settle into our area Monday into
Tuesday, then high pressure build in on Wednesday. An area of
low pressure may arrive Thursday night or Friday.

&&

.NEAR TERM /THROUGH TONIGHT/...
Recapping the last 12 hours... a strong mesoscale band moved
across PA during the overnight and ended up setting up along a
narrow axis from Berks county PA all the way to the Atlantic
Ocean. Within this band, snowfall rates of 4-5"/hour were seen
with snow accumulations ranging from 8-13". The band was
generally only 10 to 15 miles wide from south to north with snow
totals in the 2-4" range on either side. While these rates are
rare for our area, rates that high are not necessarily uncommon
within strongly forced f-gen mesoscale bands such as lake effect
bands or as was the case in the case from December of 2020
across central PA into NY.

For the rest of the afternoon we are seeing scattered convective
showers moving across PA and NY. Several snow squall warnings
have been issued and webcams are showing brief reductions in
visibility. Per the Keystone Mesonet data, while air temps are
still well below freezing road surfaces have increased to the
mid to upper 30s across Carbon/Monroe counties. Across the
Lehigh Valley and the Philly Metro area air temps are near to
above freezing with road temps closer to 40. So in the heaviest
snow showers there is some potential for brief snow accumulation
in the convective showers however further snow accumulation is
not expected. The Snow Squall parameter does ramp up towards 21z
over Carbon/Monroe counties and surface based instability
increases to 40-80 J/kg which is ample for snow squalls. In
addition there are a number of ribbons of 925mb fgen that would
support the potential for heavy snow showers.

Gusty winds will continue this afternoon up to 25-30 mph and
will remain breezy but lose most of the gust potential heaving
into the overnight hours. With a fresh snow pack, temps should
be on the lower side of guidance with highs ranging from the
upper 20s to near 40 degrees.

With broad scale subsidence, a new snow pack, and clearing
skies, it will likely be a chilly night tonight. The only thing
that may limit radiational cooling is that winds could stay up
near 10 mph through the night. Lows are forecast to range from
the lower teens to lower 20s.

&&

.SHORT TERM /SUNDAY THROUGH MONDAY NIGHT/...
An upper-level trough is forecast to gradually retreat northward,
more and more away from the Mid-Atlantic region into Monday. A
potentially strong shortwave trough then in the Central Plains
Monday should start to slide mainly to our south as we go into
Monday night. As the aforementioned trough retreats northward,
surface low pressure will go with it however an associated weak
cold front should settle through our area into Monday. Surface
high pressure then builds over our area during Monday. Moisture
and forcing look rather limited/weak with the frontal passage
and therefore maintained a dry forecast.

Sunday will become a bit breezy during the afternoon under
southwest flow, although temperatures will begin to rebound a
bit. Temperatures will drop back into the 20s Sunday night
though. Some gradual warming is then forecast through Monday.
High temperatures are currently forecast to be at or a few
degrees below average.

&&

.LONG TERM /TUESDAY THROUGH FRIDAY/...
Summary...Turning milder overall with precipitation chances
returning Thursday night and Friday. Some potential for a stronger
storm Friday, however there is a lot uncertainty.

Synoptic Overview...An upper-level trough shifts around between
central to eastern Canada Tuesday, then this trough is forecast to
amplify south and eastward some Wednesday through Friday. A cold
front in our vicinity may tend to dissipate Tuesday. An area of low
pressure organizes across the Plains and shifts eastward and may
then arrive in our area late Thursday and Friday. The main upper-
level trough may then amplify more Friday, and there is some model
guidance that shows a strong surface low tracking near or just off
of our coast Friday. This scenario is highly uncertain this far out
in time.

For Tuesday and Wednesday...A surface front across or south of our
area may tend to dissipate on Tuesday. Despite the front that
arrived, the air mass does not look to be really cooling and
therefore temperatures should be inching their way upward, with
forecast high temperatures above average. The main upper-level
trough in Central Canada is forecast to start amplifying south and
eastward some Wednesday, and a cold front will be at the leading
edge of this. It still appears that lingering surface high pressure
will be wedged across our area and therefore keeping our region dry.

For Thursday and Friday...The evolution of the upper-level flow is
forecast to undergo some amplification with time. A lead shortwave
may support a separate trough or closed low sliding off the
Southeast U.S. coast. Meanwhile, stronger shortwave energy diving
southeastward across the northern tier of states and result in the
Canadian upper-level trough amplifying southward and eastward with
time. This should also support surface low development in the Plains
along a front. This all shifts eastward and starts to arrive in our
area, however the timing is less certain as it will depend on the
strength of the surface low and associated trough. Increasing warm
air advection ahead of this system should translate to milder
temperatures with the warmest day looking to be Thursday, then some
cooling may take place Friday as the next system affects our area.
As of now, the air mass looks mild enough for mainly rain as the
precipitation type. This is however all highly dependent on the
positioning, timing and strength of the trough an associated surface
low. As of now, slight chance to low end chance PoPs (20-30 percent)
are in the forecast for much of the area Thursday, then these
increase into the chance range (30-50 percent) for the entire area
Thursday night and Friday.

&&

.AVIATION /18Z SATURDAY THROUGH THURSDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG,
KMIV, KACY and surrounding areas.

Today...Generally VFR with W-NW winds around 10-15 kt with
gusts up to 20 kt in the afternoon. Moderate confidence.

Tonight...VFR. WNW winds around 10 kt, may decrease and become
more SW after 06Z. High confidence.

Outlook...

Sunday...VFR. West-southwest winds 10-15 knots with gusts to 25
knots, diminishing some at night. Moderate confidence.

Monday...VFR. Northwest winds around 10 knots, diminishing at
night. Moderate confidence.

Tuesday and Wednesday...VFR. Southeasterly winds 5-10 knots.
Moderate confidence.

&&

.MARINE...
There will likely be a lull in SCA conditions from late this
evening through the overnight hours as winds drop below 25 kt,
However, winds will increase quickly after sunrise on Sunday, so
left the end time of the SCA as is for now.

Outlook...

Monday through Wednesday...The conditions are anticipated to be
below Small Craft Advisory criteria (25 knots/5 feet).

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...None.
NJ...None.
DE...None.
MD...None.
MARINE...Small Craft Advisory until 7 PM EST Sunday for ANZ430-431-
     453>455.
     Small Craft Advisory until 1 AM EST Monday for ANZ450>452.

&&

SYNOPSIS...Gorse/Staarmann
NEAR TERM...Deal
SHORT TERM...Gorse/Staarmann
LONG TERM...Gorse/Staarmann
AVIATION...Deal/Gorse/Johnson
MARINE...Deal/Gorse/Johnson
Hazardous weather outlook, Feb 17, 10:09 AM EST, 4 hours 33 minutes before
Hazardous Weather Outlook
National Weather Service Mount Holly NJ
1009 AM EST Sat Feb 17 2024

DEZ001-181509-
New Castle-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for New Castle County in Delaware.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

DEZ002-181509-
Kent-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for Kent County in Delaware.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

DEZ003-181509-
Inland Sussex-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for inland portions of Sussex County
in Delaware.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

DEZ004-181509-
Delaware Beaches-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for the Atlantic coastal portions of
Sussex County in Delaware.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

PAZ054-181509-
Carbon-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for Carbon County in Pennsylvania.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

PAZ055-181509-
Monroe-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for Monroe County in Pennsylvania.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

PAZ060-181509-
Berks-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for Berks County in Pennsylvania.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

PAZ061-181509-
Lehigh-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for Lehigh County in Pennsylvania.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

PAZ062-181509-
Northampton-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for Northampton County in
Pennsylvania.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

PAZ070-181509-
Delaware-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for Delaware County in Pennsylvania.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

PAZ071-181509-
Philadelphia-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for Philadelphia County in
Pennsylvania.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

PAZ101-181509-
Western Chester-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for western Chester County in
Pennsylvania.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

PAZ102-181509-
Eastern Chester-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for eastern Chester County in
Pennsylvania.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

PAZ103-181509-
Western Montgomery-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for western Montgomery County in
Pennsylvania.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

PAZ104-181509-
Eastern Montgomery-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for eastern Montgomery County in
Pennsylvania.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

PAZ105-181509-
Upper Bucks-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for upper Bucks County in
Pennsylvania.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

PAZ106-181509-
Lower Bucks-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for lower Bucks County in
Pennsylvania.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

NJZ001-181509-
Sussex-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for Sussex County in New Jersey.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

NJZ007-181509-
Warren-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for Warren County in New Jersey.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

NJZ008-181509-
Morris-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for Morris County in New Jersey.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

NJZ009-181509-
Hunterdon-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for Hunterdon County in New Jersey.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

NJZ010-181509-
Somerset-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for Somerset County in New Jersey.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

NJZ012-181509-
Middlesex-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for Middlesex County in New Jersey.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

NJZ013-181509-
Western Monmouth-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for western Monmouth County in New
Jersey.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

NJZ014-181509-
Eastern Monmouth-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for eastern Monmouth County in New
Jersey.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

NJZ015-181509-
Mercer-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for Mercer County in New Jersey.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

NJZ016-181509-
Salem-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for Salem County in New Jersey.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

NJZ017-181509-
Gloucester-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for Gloucester County in New Jersey.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

NJZ018-181509-
Camden-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for Camden County in New Jersey.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

NJZ019-181509-
Northwestern Burlington-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for northwestern Burlington County in
New Jersey.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

NJZ020-181509-
Ocean-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for inland portions of Ocean County
in New Jersey.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

NJZ021-181509-
Cumberland-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for Cumberland County in New Jersey.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

NJZ022-181509-
Atlantic-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for inland portions of Atlantic
County in New Jersey.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

NJZ023-181509-
Cape May-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for Cape May County excluding the
Atlantic coast in New Jersey.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

NJZ024-181509-
Atlantic Coastal Cape May-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for the Atlantic coastal portions of
Cape May County in New Jersey.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

NJZ025-181509-
Coastal Atlantic-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for coastal portions of Atlantic
County in New Jersey.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

NJZ026-181509-
Coastal Ocean-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for coastal portions of Ocean County
in New Jersey.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

NJZ027-181509-
Southeastern Burlington-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for southeastern Burlington County in
New Jersey.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

MDZ012-181509-
Kent MD-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for Kent County in Maryland.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

MDZ015-181509-
Queen Annes-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for Queen Annes County in Maryland.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

MDZ019-181509-
Talbot-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for Talbot County in Maryland.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

MDZ020-181509-
Caroline-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for Caroline County in Maryland.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

ANZ430-181509-
Delaware Bay waters north of East Point NJ to Slaughter Beach DE-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for upper Delaware Bay.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

ANZ431-181509-
Delaware Bay waters south of East Point NJ to Slaughter Beach DE-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for lower Delaware Bay.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

ANZ450-181509-
Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for the Atlantic coastal waters
adjacent to Monmouth County out 20 nm.

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Gale-force winds and/or very rough seas are forecast on Thursday.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

ANZ451-181509-
Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for the Atlantic coastal waters
adjacent to Ocean County out 20 nm.

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Gale-force winds and/or very rough seas are forecast on Thursday.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

ANZ452-181509-
Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for the Atlantic coastal waters
adjacent to Atlantic County out 20 nm.

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Gale-force winds and/or very rough seas are forecast on Thursday.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

ANZ453-181509-
Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for the Atlantic coastal waters
adjacent to Cape May County out 20 nm.

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Gale-force winds and/or very rough seas are forecast on Thursday.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

ANZ454-181509-
Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for the Atlantic coastal waters
adjacent to the mouth of Delaware Bay out 20 nm.

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Gale-force winds and/or very rough seas are forecast on Friday.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

ANZ455-181509-
Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm-
1009 AM EST Sat Feb 17 2024

This Hazardous Weather Outlook is for the Atlantic coastal waters
adjacent to Sussex County out 20 nm.

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Gale-force winds and/or very rough seas are forecast on Friday.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

In the hours before

Local storm report, Feb 17, 1:34 PM EST, 1 hour 8 minutes before
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
134 PM EST Sat Feb 17 2024

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

0915 AM     Snow             Bern Twp                40.39N 76.00W
02/17/2024  M10.6 inch       Berks              PA   Trained Spotter

&&

MJL
Local storm report, Feb 17, 1:36 PM EST, 1 hour 6 minutes before
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
136 PM EST Sat Feb 17 2024

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

0848 AM     Snow             Upper Uwchlan Twp       40.08N 75.68W
02/17/2024  M3.2 inch        Chester            PA   Trained Spotter

&&

MJL
Local storm report, Feb 17, 1:37 PM EST, 1 hour 5 minutes before
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
137 PM EST Sat Feb 17 2024

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

0930 AM     Snow             Woodsville              40.37N 74.82W
02/17/2024  M5.7 inch        Mercer             NJ   Trained Spotter

&&

MJL
Local storm report, Feb 17, 1:39 PM EST, 1 hour 3 minutes before
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
139 PM EST Sat Feb 17 2024

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

0940 AM     Snow             1 ESE Bridgeport        40.10N 75.33W
02/17/2024  M2.1 inch        Montgomery         PA   Trained Spotter

&&

MJL
Local storm report, Feb 17, 1:42 PM EST, 1 hour before
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
142 PM EST Sat Feb 17 2024

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

0945 AM     Snow             1 NNE Bethlehem Twp     40.66N 75.33W
02/17/2024  M4.5 inch        Northampton        PA   Trained Spotter

&&

MJL
Local storm report, Feb 17, 1:43 PM EST, 59 minutes before
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
143 PM EST Sat Feb 17 2024

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

0900 AM     Snow             2 E Bethlehem           40.63N 75.34W
02/17/2024  M6.5 inch        Northampton        PA   Trained Spotter

&&

MJL

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 17, 12:46 AM ESTSpecial Weather StatementPHIHunterdon, Somerset59 min
Feb 17, 1:09 AM ESTSpecial Weather StatementPHIMiddlesex66 min
Feb 17, 2:02 AM ESTSpecial Weather StatementPHIHunterdon, Middlesex, Somerset58 min
Feb 17, 2:17 PM ESTSnow Squall WarningPHISussex, Warren28 min
Feb 17, 2:24 PM ESTSnow Squall WarningPHISussex, Warren21 min
Feb 17, 2:48 PM ESTSnow Squall Warning Significant damage threatPHIHunterdon, Morris, Sussex, Warren27 min
Feb 17, 3:17 PM ESTSnow Squall Warning Significant damage threatPHIHunterdon, Morris, Warren43 min
Feb 17, 3:28 PM ESTSnow Squall Warning Significant damage threatPHIHunterdon47 min
Feb 17, 4:09 PM ESTSnow Squall WarningPHIWarren36 min
Feb 17, 4:14 PM ESTSnow Squall WarningPHIHunterdon21 min
Feb 17, 4:44 PM ESTSnow Squall Warning Significant damage threatPHIWarren46 min
Feb 17, 5:01 PM ESTSnow Squall WarningPHIHunterdon, Morris, Warren29 min
Feb 17, 5:17 PM ESTSnow Squall WarningPHIHunterdon, Morris, Somerset28 min
Feb 17, 5:27 PM ESTSnow Squall Warning Significant damage threatPHIHunterdon, Warren48 min
Feb 17, 2:08 PM ESTSnow Squall WarningPHICarbon, Lehigh, Monroe, Northampton37 min
Feb 17, 2:26 PM ESTSnow Squall WarningPHIBerks, Bucks, Lehigh, Montgomery34 min
Feb 17, 2:57 PM ESTSnow Squall Warning Significant damage threatPHIBerks, Bucks, Lehigh, Montgomery, Northampton33 min
Feb 17, 3:10 PM ESTSnow Squall Warning Significant damage threatPHICarbon, Lehigh, Monroe, Northampton50 min
Feb 17, 3:31 PM ESTSnow Squall WarningPHIBerks44 min
Feb 17, 3:57 PM ESTSnow Squall WarningPHICarbon, Monroe48 min
Feb 17, 4:16 PM ESTSnow Squall WarningPHIBerks, Bucks, Chester, Lehigh, Montgomery29 min

Nearby

Snow Squall Warnings in Pennsylvania, 2024Snow Squall Warnings in New Jersey, 2024Every snow squall warning in 2024

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.