Watches, Warnings & Advisories



2 products issued by NWS for: Philadelphia PA

Winter Weather Advisory

URGENT - WINTER WEATHER MESSAGE
National Weather Service Mount Holly NJ
242 PM EST Sat Jan 17 2026

DEZ001-NJZ016>019-PAZ070-071-101>106-180845-
/O.NEW.KPHI.WW.Y.0003.260118T1100Z-260119T0100Z/
New Castle-Salem-Gloucester-Camden-Northwestern Burlington-
Delaware-Philadelphia-Western Chester-Eastern Chester-Western
Montgomery-Eastern Montgomery-Upper Bucks-Lower Bucks-
Including the cities of Norristown, Media, Kennett Square,
Perkasie, Honey Brook, Lansdale, Wilmington, Glassboro,
Morrisville, Pottstown, Camden, Cherry Hill, Philadelphia,
Collegeville, Oxford, Doylestown, West Chester, Pennsville,
Moorestown, Mount Holly, and Chalfont
242 PM EST Sat Jan 17 2026

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM TO 8 PM EST SUNDAY...

* WHAT...Snow expected. Total snow accumulations between 1 and 3
  inches.

* WHERE...Portions of northern Delaware, southern New Jersey, and
  southeast Pennsylvania.

* WHEN...From 6 AM to 8 PM EST Sunday.

* IMPACTS...Plan on slippery road conditions.

* ADDITIONAL DETAILS...Snow may mix with rain for a time at the
  onset Sunday morning before becoming all snow by Sunday afternoon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road
conditions for the state you are calling from can be obtained by
calling 5 1 1.

&&

$$



Dense Fog Advisory

URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
817 PM EST Sat Jan 17 2026

NJZ007>010-012-013-015-017>020-022-027-PAZ060>062-070-071-101>106-
180500-
/O.NEW.KPHI.FG.Y.0002.260118T0117Z-260118T0500Z/
Warren-Morris-Hunterdon-Somerset-Middlesex-Western Monmouth-
Mercer-Gloucester-Camden-Northwestern Burlington-Ocean-Atlantic-
Southeastern Burlington-Berks-Lehigh-Northampton-Delaware-
Philadelphia-Western Chester-Eastern Chester-Western Montgomery-
Eastern Montgomery-Upper Bucks-Lower Bucks-
Including the cities of Somerville, Chalfont, Morristown, Oxford,
Glassboro, New Brunswick, Easton, Norristown, Doylestown,
Trenton, Philadelphia, Mount Holly, Pottstown, Freehold, Jackson,
Cherry Hill, Kennett Square, Lansdale, Honey Brook, Reading,
Morrisville, Washington, Camden, Hammonton, Flemington, West
Chester, Allentown, Media, Wharton State Forest, Perkasie,
Collegeville, Bethlehem, and Moorestown
817 PM EST Sat Jan 17 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL MIDNIGHT EST TONIGHT...

* WHAT...Visibility as low as one-quarter mile or less in dense fog.

* WHERE...Portions of New Jersey and southeast Pennsylvania.

* WHEN...Until midnight EST tonight.

* IMPACTS...Low visibility could make driving conditions hazardous.

* ADDITIONAL DETAILS...Patchy freezing fog may result in localized
  black ice, especially on untreated roads.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.

&&

$$

MPS