textproduct: Philadelphia/Mt Holly

WHAT HAS CHANGED

No significant changes.

KEY MESSAGES

1. Showers continuing into this morning. Breezy and much cooler for today in the wake of a strong cold front.

DISCUSSION

KEY MESSAGE 1...Showers continuing into this morning. Breezy and much cooler for today in the wake of a strong cold front.

A somewhat disjointed system continues to impact the area early this morning. At the surface, an elongated area of low pressure extends from eastern Virginia north and east off the coast of Cape May. Meanwhile in the upper levels a trough continues to pivot eastward into the low Great Lakes. These features are helping drive an area of showers that's been moving into the area from the west over the past few hours and is just getting into the I-95 corridor as of this writing. This looks to linger over the area through at least the first part of this morning before things start to diminish towards the mid to late morning. However a second round of some light showers or drizzle may move through around the midday into early afternoon time frame. Temperatures are about as warm as they will be today early this morning as the developing cold advection pattern will cause temperatures to drop off into the 40s to low 50s as we head through the morning. There will also be a tightening pressure gradient in the wake of the low as it pulls away and high pressure to the west. As a result, north to NW winds will be on the increase and generally be on the order of 15 to 20 gusting 25 to 35 mph by this afternoon. Showers should be pretty much over by mid afternoon but it looks to overall stay pretty cloudy for most of the area through most of the day. So overall, a rather cool and raw day especially compared to yesterday.

Winds diminish through the evening and overnight with mainly sunny but cool weather for Tuesday.

AVIATION /12Z MONDAY THROUGH FRIDAY/

The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas.

Today...MVFR/IFR lingering through the morning along with showers before cigs lift and scatter out to VFR through the mid to late afternoon. NE winds shifting to NW late morning through the early afternoon and increasing to around 15 gusting 25 to 30 knots. Moderate confidence.

Tonight...VFR with diminishing winds.

Outlook...

Tuesday through Wednesday...VFR with no significant weather.

Late Thursday into Friday...Periods of sub-VFR conditions possible with some rain.

MARINE

Northerly winds will increase from north to south near daybreak with an additional increase during the day Monday. Given wind gusts 25-30 knots and seas building to around 5 feet Monday, the Small Craft Advisory is in effect for Monday and Monday night. The conditions however should start subsiding later Monday night into early Tuesday.

Outlook...

Tuesday and Wednesday...The conditions are anticipated to be below Small Craft Advisory criteria.

Thursday and Friday...A period of Small Craft Advisory conditions may develop starting Thursday night.

PHI WATCHES/WARNINGS/ADVISORIES

PA...None. NJ...None. DE...None. MD...None. MARINE...Small Craft Advisory until 3 AM EDT Tuesday for ANZ430-431. Small Craft Advisory until 6 AM EDT Tuesday for ANZ450>455.