Winter Storm Warning 3, NWS Philadelphia/Mount Holly

790 
WWUS41 KPHI 290912
WSWPHI

URGENT - WINTER WEATHER MESSAGE
National Weather Service Mount Holly NJ
412 AM EST Tue Jan 29 2019


DEZ001-MDZ008-NJZ010-015-PAZ070-071-102-104-106-292115-
/O.CAN.KPHI.WW.Y.0005.000000T0000Z-190130T0500Z/
/O.NEW.KPHI.WW.Y.0006.190129T2100Z-190130T0500Z/
New Castle-Cecil-Somerset-Mercer-Delaware-Philadelphia-
Eastern Chester-Eastern Montgomery-Lower Bucks-
Including the cities of Wilmington, Elkton, Somerville, Trenton, 
Media, Philadelphia, West Chester, Kennett Square, Norristown, 
Lansdale, Morrisville, and Doylestown
412 AM EST Tue Jan 29 2019

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO
MIDNIGHT EST TONIGHT...

* WHAT...Snow expected. Total snow accumulations of one to two
  inches expected. 

* WHERE...Portions of central and northern New Jersey, southeast 
  Pennsylvania, northeast Maryland and northern Delaware.

* WHEN...From 4 PM this afternoon to midnight EST tonight.

* ADDITIONAL DETAILS...A mix of rain and snow will develop this
  morning before changing to all rain with little accumulation
  expected before the change occurs. Rain will change back to snow
  from northwest to southeast late this afternoon into early this
  evening. The snow will continue for several hours before ending
  by midnight. Plan on slippery road conditions. The hazardous 
  conditions will likely impact the evening commute. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

PAZ054-055-292115-
/O.CON.KPHI.WS.W.0003.000000T0000Z-190130T0500Z/
Carbon-Monroe-
Including the cities of Jim Thorpe and Stroudsburg
412 AM EST Tue Jan 29 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EST
TONIGHT...

* WHAT...Heavy snow. Snow accumulations of 4 to 8 inches.

* WHERE...Carbon and Monroe counties.

* WHEN...Until midnight EST tonight.

* ADDITIONAL DETAILS...Snow is expected to overspread the region
  this morning and continue through the day before tapering off
  this evening. Travel will become difficult with the hazardous 
  conditions impacting both the morning and evening commutes.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NJZ001-007>009-PAZ060>062-101-103-105-292115-
/O.CON.KPHI.WW.Y.0005.000000T0000Z-190130T0500Z/
Sussex-Warren-Morris-Hunterdon-Berks-Lehigh-Northampton-
Western Chester-Western Montgomery-Upper Bucks-
Including the cities of Newton, Washington, Morristown, 
Flemington, Reading, Allentown, Bethlehem, Easton, Honey Brook, 
Oxford, Collegeville, Pottstown, Chalfont, and Perkasie
412 AM EST Tue Jan 29 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST
TONIGHT...

* WHAT...Snow. Snow accumulations of 2 to 4 inches.

* WHERE...Portions of northern and northwest New Jersey and east 
  central and southeast Pennsylvania.

* WHEN...Until midnight EST tonight.

* ADDITIONAL DETAILS...Snow is expected to overspread the region
  from west to east this morning. Moderate snowfall rates are
  possible. It may mix with some rain in the afternoon. The snow
  is forecast to come to an end from west to east through this 
  evening . Be prepared for slippery roads and walkways. The 
  hazardous conditions could impact both the morning and evening 
  commutes.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

For more information from the National Weather Service visit
www.weather.gov/phi/winter

431 
WWUS41 KPHI 292008
WSWPHI

URGENT - WINTER WEATHER MESSAGE
National Weather Service Mount Holly NJ
308 PM EST Tue Jan 29 2019

PAZ054-055-300500-
/O.CON.KPHI.WS.W.0003.000000T0000Z-190130T0500Z/
Carbon-Monroe-
Including the cities of Jim Thorpe and Stroudsburg
308 PM EST Tue Jan 29 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EST
TONIGHT...

* WHAT...Heavy snow. Additional snow accumulations of 2 to 4 
  inches.

* WHERE...Carbon and Monroe counties.

* WHEN...Until midnight EST tonight. Snow heavier at times will
  continue this afternoon into early this evening, then end later
  this evening. 

* ADDITIONAL DETAILS...Plan on slippery road conditions. The
  hazardous conditions will impact this evenings commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous. If you must travel, 
keep an extra flashlight, food and water in your vehicle in case 
of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

DEZ001-MDZ008-NJZ010-015-PAZ070-071-102-104-106-300500-
/O.CON.KPHI.WW.Y.0006.190129T2100Z-190130T0500Z/
New Castle-Cecil-Somerset-Mercer-Delaware-Philadelphia-
Eastern Chester-Eastern Montgomery-Lower Bucks-
Including the cities of Wilmington, Elkton, Somerville, Trenton, 
Media, Philadelphia, West Chester, Kennett Square, Norristown, 
Lansdale, Morrisville, and Doylestown
308 PM EST Tue Jan 29 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST
TONIGHT...

* WHAT...Rain changing to snow expected. Total snow accumulations
  of 1 to 2 inches expected.

* WHERE...Portions of central and northern New Jersey, southeast 
  Pennsylvania, northeast Maryland and northern Delaware.

* WHEN...Until midnight EST tonight. Rain or a rain snow mix will
  change to all snow later this afternoon and continue early this
  evening, then end later this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions. The
  hazardous conditions will impact this evenings commute,
  especially for areas north and west of Trenton, Philadelphia and
  Wilmington.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NJZ001-007>009-PAZ060>062-101-103-105-300500-
/O.CON.KPHI.WW.Y.0005.000000T0000Z-190130T0500Z/
Sussex-Warren-Morris-Hunterdon-Berks-Lehigh-Northampton-
Western Chester-Western Montgomery-Upper Bucks-
Including the cities of Newton, Washington, Morristown, 
Flemington, Reading, Allentown, Bethlehem, Easton, Honey Brook, 
Oxford, Collegeville, Pottstown, Chalfont, and Perkasie
308 PM EST Tue Jan 29 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST
TONIGHT...

* WHAT...Snow. Additional snow accumulations of 2 to 3 inches.

* WHERE...Portions of northern and northwest New Jersey and east 
  central and southeast Pennsylvania.

* WHEN...Until midnight EST tonight. Snow heavier at times will
  continue this afternoon into early this evening, then end later
  this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions. The
  hazardous conditions will impact this evenings commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

For more information from the National Weather Service visit
www.weather.gov/phi/winter

402 
WWUS41 KPHI 300200
WSWPHI

URGENT - WINTER WEATHER MESSAGE
National Weather Service Mount Holly NJ
900 PM EST Tue Jan 29 2019

PAZ054-055-300300-
/O.CAN.KPHI.WS.W.0003.000000T0000Z-190130T0500Z/
Carbon-Monroe-
Including the cities of Jim Thorpe and Stroudsburg
900 PM EST Tue Jan 29 2019

...WINTER STORM WARNING IS CANCELLED...

The snow has come to an end in the Pocono Region, and the Winter 
Storm Warning has been cancelled.

If you will be going out overnight, be prepared for slippery
conditions on untreated roads and walkways.

$$

NJZ001-007>009-PAZ060>062-101-103-105-300300-
/O.CAN.KPHI.WW.Y.0005.000000T0000Z-190130T0500Z/
Sussex-Warren-Morris-Hunterdon-Berks-Lehigh-Northampton-
Western Chester-Western Montgomery-Upper Bucks-
Including the cities of Newton, Washington, Morristown, 
Flemington, Reading, Allentown, Bethlehem, Easton, Honey Brook, 
Oxford, Collegeville, Pottstown, Chalfont, and Perkasie
900 PM EST Tue Jan 29 2019

...WINTER WEATHER ADVISORY IS CANCELLED...

The snow is coming to an end. The Winter Weather Advisory has 
been cancelled.

If you will be going out overnight, be prepared for slippery 
conditions on untreated roads and walkways.

$$

DEZ001-MDZ008-NJZ010-015-PAZ070-071-102-104-106-300300-
/O.CAN.KPHI.WW.Y.0006.000000T0000Z-190130T0500Z/
New Castle-Cecil-Somerset-Mercer-Delaware-Philadelphia-
Eastern Chester-Eastern Montgomery-Lower Bucks-
Including the cities of Wilmington, Elkton, Somerville, Trenton, 
Media, Philadelphia, West Chester, Kennett Square, Norristown, 
Lansdale, Morrisville, and Doylestown
900 PM EST Tue Jan 29 2019

...WINTER WEATHER ADVISORY IS CANCELLED...

The snow is coming to an end. The Winter Weather Advisory has 
been cancelled.

If you will be going out overnight, be prepared for slippery 
conditions on untreated roads and walkways.

$$

For more information from the National Weather Service visit
www.weather.gov/phi/winter

Iovino

Area Forecast Discussion
National Weather Service Mount Holly NJ
316 PM EST Mon Jan 28 2019

.SYNOPSIS...
Weak high pressure will move offshore tonight. Low pressure will
move across the lower Great Lakes and into Canada Tuesday through
Wednesday. A cold front will cross the area Tuesday night followed
by another Wednesday afternoon. Arctic high pressure will follow for
Thursday and into Friday. A warm front will affect the Delmarva area
Friday. More high pressure will build in for the weekend. Another
disturbance may arrive early next week.

&&

.NEAR TERM /UNTIL 6 AM TUESDAY MORNING/...
Overnight our area will be sandwiched between the ridge shifting
east and the next cold front due to arrive Tuesday evening. For the
most part, expect precipitation associated with the next system to
remain west of our region overnight, except from the Lehigh Valley
further west where initial rounds of snow could arrive in the pre
dawn hours.

Thanks to increasing clouds, expect temperatures to stay a few
degrees above the Monday morning lows, just slightly above
normal.

&&

.SHORT TERM /6 AM TUESDAY MORNING THROUGH TUESDAY NIGHT/...
What has changed: confidence is increasing as we get closer to the
event, so have converted the winter storm watch for the southern
Poconos to a winter storm warning, and have issued a winter weather
advisory for areas mostly along and northwest of I-95. Minor
adjustments were made to the snow amount forecast.

Thanks to the approaching cold front and a low developing along the
cold front and lifting northeast, expect a quick, but impactful
precipitation event Tuesday into Tuesday evening. As for the
individual elements of this event:

Timing: Not much change with the timing of the system. An initial
round of precipitation is expected in the morning. The main
precipitation event will likely be Tuesday afternoon into early
evening as the main area of frontogenesis will be over our region at
that time. Precipitation looks to move out quickly once the cold
front arrives Tuesday evening.

Precipitation types: This event looks to be mostly a rain or snow
event. Some models have a warm layer (most notably the NAM), but it
doesn't appear to be deep enough or warm enough to result in
significant melting of ice crystals, except in areas where
temperatures are high enough to support all rain anyway. Most of the
12Z guidance did come in slightly colder, so expanded the areas that
will see all snow further southeast, including the entire Lehigh
Valley, Berks County, and western Chester County. For the I95
corridor, expect a prolonged period of rain/snow mix, and possibly a
brief period tomorrow afternoon of all rain. For the coastal plains
of NJ and Delmarva, expect primarily rain with a brief period of a
rain/snow mix possible Tuesday evening.

Snow Amounts: As mentioned above, much of the 12Z guidance came in
colder, but it was balanced with a drier trend. Thus, snow amounts
didn't change significantly. 6 to 8 inches is possible across the
southern Poconos, 3 to 6 inches is possible for the far western
suburbs, NW NJ, Lehigh Valley, and Berks County. Up to 3 inches is
possible across the I95 corridor. Generally less than one inch is
expected over the Coastal Plains.

Temperatures: temperatures will be dropping Tuesday night behind the
cold front, but the arctic front, which will have the much
advertised bitter cold, is not expected to arrive until during the
day on Wednesday, so lows Tuesday night will likely range from the
single digits in the southern Poconos to lower 20s along and
southeast of the 95 corridor.

&&

.LONG TERM /WEDNESDAY THROUGH MONDAY/...
The arctic air arrives across the region Wed. A secondary cold front
attached to the low across Canada will swing thru during the
afternoon. Gusty winds are expected with and behind the front as the
deeper colder air pours across our area. Temperatures will drop some
5 to 10 degrees within a few hours after fropa. Yesterday, the
models were suggesting frequent snow showers across the entire
region with the front, but they seemed to have drier out somewhat,
so only widely scattered snow showers mainly across the N/W areas
are now expected. We have chc pops across the N and slgt chc pops
over Delmarva and srn NJ. Winds will probably gust between 30 and 40
mph thru the afternoon and into the evening. Localized tree/power
line issues are possible. Winds lesses overnight as the pressure
gradient begins to slacken. Lows by Thu morning will be 0 to -10 NW
and single digits (above zero) over Delmarva, metro Philly and srn
NJ. Winds chills will be 10 to 15 degrees lower than the temps.

Thursday...Fair weather with the coldest of the airmass settling
across the region. Highs only in the single digits (above zero)
N/W with teens across the Delaware Valley and low 20s over srn Delmarva.
Wind chills will be dangerously cold with WC flags possible.

Friday...Warm air advection begins as the arctic air moves away.
Clouds will increase over the area with an approaching warm
front and some light will develop across Delmarva and into SE
PA. Chc pops for the light snow over the srn regions and slgt
chc pops elsewhere. No accums are anticipated attm.

Saturday/Sunday...Fair weather expected Saturday with high pressure
building across the region. Temperatures will remain below normal,
but then readings will become a little above normal Sunday as the
high moves away. Another disturbance is slated to arrive early
next week. We just have some small chance pops in the fcst for
this presently.

&&

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

Tonight...VFR conditions are expected for most if not all of the
overnight hours. Ceilings will gradually lower late tonight as the
next system approaches the region, but are expected to stay just
above MVFR criteria. Winds will begin light and variable, settling
out of the southeast by sunrise.

Tuesday...Conditions are expected to deteriorate to MVFR and
possibly even IFR as precipitation moves in. Expect most of the TAF
sites to see a rain/snow mix or all rain through the day time hours.
Winds will be southerly increasing to 10 to 15 kt by the
afternoon.

Outlook...

Tuesday night...MVFR and localized IFR conditions continue into the
evening hours, but conditions should improve quickly to VFR behind a
cold front which will also bring an abrupt shift to west northwesterly
winds at 10 to 20 kt.

Wednesday...VFR with gusty winds developing. A few snow squalls with
lower vsbys possible after 18Z KRDG/KABE.

Wed night/Thursday...VFR. Very cold. Gusty winds.

Thursday night...VFR.

Friday/Fri night...Increasing clouds with -sn possible and MVFR
possible across Delmarva maybe KPHL. Low confid.

Saturday...VFR expected.

&&

.MARINE...
Winds and seas should stay below Small Craft Advisory criteria
tonight. Starting Tuesday morning, winds and seas on the ocean
waters are expected to reach SCA criteria.

Tuesday evening, we are expecting an abrupt shift to west
northwesterly winds behind a cold front, with winds increasing
quickly as well. Winds could get to gale force, so have issued a
gale watch beginning Tuesday night.

Outlook...

Wed/Wed night...Gales continue into Wed evening before diminishing
back to SCA conditions. Fair. Freezing spray.

Thu/Thu night...SCA expected. Fair. Freezing spray.

Fri thru Sat...Sub-SCA. Light snow possible Fri otherwise Fair.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...Winter Weather Advisory from 4 AM Tuesday to midnight EST
     Tuesday night for PAZ060>062-070-071-101>106.
     Winter Storm Warning from 4 AM Tuesday to midnight EST Tuesday
     night for PAZ054-055.
NJ...Winter Weather Advisory from 4 AM Tuesday to midnight EST
     Tuesday night for NJZ001-007>010-015.
DE...Winter Weather Advisory from 4 AM Tuesday to midnight EST
     Tuesday night for DEZ001.
MD...Winter Weather Advisory from 4 AM Tuesday to midnight EST
     Tuesday night for MDZ008.
MARINE...Gale Watch from Tuesday evening through Wednesday afternoon
     for ANZ430-431-450>455.
     Small Craft Advisory from 9 AM to 6 PM EST Tuesday for
     ANZ450>455.

&&

Synopsis...O'Hara
Near Term...Johnson
Short Term...Johnson
Long Term...O'Hara
Aviation...Johnson/O'Hara
Marine...Johnson/O'Hara

Hazardous Weather Outlook
National Weather Service Mount Holly NJ
418 AM EST Mon Jan 28 2019

PAZ054-055-290930-
Carbon-Monroe-
418 AM EST Mon Jan 28 2019

...WINTER STORM WATCH IN EFFECT FROM TUESDAY MORNING THROUGH
WEDNESDAY MORNING...

This Hazardous Weather Outlook is for northeast Pennsylvania.

.DAY ONE...Today and tonight.

Hazardous weather is not expected at this time.

.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.

   Winter Storm Watch.

In addition, periods of gusty winds and scattered snow squalls are
possible on Wednesday afternoon. Very cold temperatures and wind
chills are expected Wednesday night and Thursday.

.SPOTTER INFORMATION STATEMENT...

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

DEZ001>004-MDZ008-012-015-019-020-NJZ001-007>010-012>027-PAZ060>062-
070-071-101>106-290930-
New Castle-Kent-Inland Sussex-Delaware Beaches-Cecil-Kent MD-
Queen Annes-Talbot-Caroline-Sussex-Warren-Morris-Hunterdon-Somerset-
Middlesex-Western Monmouth-Eastern Monmouth-Mercer-Salem-Gloucester-
Camden-Northwestern Burlington-Ocean-Cumberland-Atlantic-Cape May-
Atlantic Coastal Cape May-Coastal Atlantic-Coastal Ocean-
Southeastern Burlington-Berks-Lehigh-Northampton-Delaware-
Philadelphia-Western Chester-Eastern Chester-Western Montgomery-
Eastern Montgomery-Upper Bucks-Lower Bucks-
418 AM EST Mon Jan 28 2019

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

.DAY ONE...Today and tonight.

Hazardous weather is not expected at this time.

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

Rain is expected to change to snow Tuesday into Tuesday night.
Hazardous travel conditions are possible during and after this
changeover as roads may become very icy. Periods of strong, gusty
winds and scattered snow squalls are possible Wednesday afternoon as
an arctic cold front moves through. Very cold temperatures and wind
chills are expected Wednesday night and Thursday.

.SPOTTER INFORMATION STATEMENT...

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

ANZ430-431-450>455-290930-
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-
418 AM EST Mon Jan 28 2019

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

.DAY ONE...Today and tonight.

The probability for widespread hazardous weather is low.

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

Gale-force northwest winds are possible Wednesday into Wednesday
night with freezing spray developing Wednesday night and continuing
Thursday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.