textproduct: Philadelphia/Mt Holly
This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.
WHAT HAS CHANGED
Altered marine flags.
KEY MESSAGES
- Gusty winds today with gusts 30 to 35 mph. Gale warnings.
- A cold front will bring chances for showers Friday night and early Saturday.
DISCUSSION
KEY MESSAGE 1... Gusty winds today with gusts 30 to 35 mph. Small Craft Advisories.
KEY MESSAGE 1 DESCRIPTION... Strong low pressure moving down the Saint Lawrence Valley today will help produce a strong pressure gradient across the Middle Atlantic region. West to Northwest winds 15 to 20 mph with gusts 30 to 35 mph are expected today. The winds will slowly diminish later today. The winds will bring cold temperatures to the area today. Highs will only be in the 30s across the N/W areas and low 40s for Delmarva and south NJ. Winds chill temps will be in the 30s S/E and 20s N/W.
Gales were taken down at 6AM and replaced with Small Craft Advisories. It appears that SCA conditions for gusts and rough seas will be on Delaware Bay for today then winds diminish. On the Ocean, SCA will last longer as seas will remain close to 5 ft into Wednesday morning.
KEY MESSAGE 2... A cold front will bring chances for showers Friday night and early Saturday.
While there are still model differences. It's possible that some rains and possibly snow (N/W) areas could accompany a cold front. Right now, we have chance POPs for Friday night and slight chance POPs for Saturday morning.
Tonight
VFR. Northwest winds 10 to 15 kts with gusts up to 20 kts in the evening, diminishing to 5 to 10 kt. High confidence.
Outlook...
Wednesday through Friday... VFR expected. Fair weather.
Friday night and Saturday... Mostly VFR but restrictions in rain are possible Friday night.
MARINE
Gales were taken down at 6AM and replaced with Small Craft Advisories. It appears that SCA conditions for gusts and rough seas will be on Delaware Bay for today then winds diminish. On the Ocean, SCA will last longer as seas will remain close to 5 ft into Wednesday morning. Fair weather today and tonight.
Outlook... Lingering SCA conditions on the ocean for Wednesday as seas will decrease back below 5 ft by midday. Sub-SCA conditions for Wednesday night through Friday night. A few low-end SCA seas for Saturday.
CLIMATE
The was a new daily record precipitation total was set for Mount Pocono, PA yesterday. A RER product was issued.
PHI WATCHES/WARNINGS/ADVISORIES
PA...None. NJ...None. DE...None. MD...None. MARINE...Small Craft Advisory until 8 PM EDT this evening for ANZ430- 431. Small Craft Advisory until 11 AM EDT Wednesday for ANZ450>455.
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