Philadelphia weather: Lingering showers move out, tracking another major rain system Tuesday
PHILADELPHIA (CBS) -- Rain and snow fell across the Delaware Valley Saturday, dropping nearly a foot of powder in the Poconos.
The storm will wrap up and move out Sunday, but there are a few lingering effects to be aware of as you plan your morning.
Expect some fog Sunday morning and potentially freezing drizzle around the area. Wraparound snow showers are possible north and west, and could make already icy roads more slippery.
In Philadelphia, temperatures will climb into the low-40s Sunday with a high of 43 degrees. Around 10 a.m. a spotty snow or rain shower could push through the area, but won't amount to much in terms of accumulation. Skies remain cloudy the rest of the afternoon.
Southern Delaware is likely to clear out first Sunday afternoon, and could even see a few peeks of sunshine later in the day.
Conditions will be mostly clear Sunday night, though some more patchy fog could move in.
Monday is quiet and pleasant with highs near 45.
Another storm moves in Tuesday
A powerful low will lift across the northeast on Tuesday with an impressive strong jet drawing in moisture from the Gulf of Mexico and Caribbean.
This system will also bring in lots of warm air with it, with temperatures surging to the 50s and possibly near 60 late Tuesday. That means this storm will be all rain, so no more watching the rain/snow line. However, this is a stronger and more powerful storm than the one on Saturday, and with the ground already saturated, it will bring widespread flooding concerns.
Snow melt and runoff will add to the flooding concerns on Tuesday as the storm arrives. The Tuesday morning commute should not be impacted, but rain will arrive by noon and the heaviest precipitation will fall Tuesday night into the wee hours of Wednesday.
The 12 hour window of greatest impact will be 2 p.m. Tuesday through 2 a.m. Wednesday. The heaviest rain should taper off before the Wednesday morning commute, but flooding will likely be ongoing through at least the first half of the day in the areas that see the heaviest bands of rain.
Overall, expect a general 1-3" of rainfall, with some spots potentially seeing up to 4". Flash flooding will be a concern where the heaviest bands set up, and our area is already in a "moderate" flash flood risk zone for Tuesday.
In addition to the rain, winds will be very strong with the potential for damaging gusts and beach erosion along the coast. Winds could gust between 40-50 mph in the city, and 50-60 mph at the shore. This could cause power outages and downed trees, especially in light of the saturated ground.
The heaviest rain will end by the morning commute on Wednesday but larger streams and rivers may experience flooding into Wednesday, which could mean road closures and detours even after the rain departs.
To add insult to injury, another system arrives Friday night into Saturday. This one appears weaker and looks like rain, however even a small amount of additional rainfall could exacerbate the risk for flooding.
Your 7-day forecast:
Sunday: High of 43, rain and snow
Monday: High of 45, low of 33, mostly sunny
Tuesday: High of 52, low of 31, NEXT Weather Alert
Wednesday: High of 50, low of 47, AM showers
Thursday: High of 47, low of 35, mostly sunny
Friday: High of 47, low of 35, night rain/snow
Saturday: High of 52, low of 42, rain
