Forecast discussion: After seeing a little sunshine Saturday morning, a low pressure system centered over western North Carolina will bring a swath of rain into Providence for the rest of the weekend. Unfortunately for us, this low will meander off the Mid-Atlantic coast on Monday, so we will see some significant rainfall by Tuesday.
As we move into early Sunday morning, we will be seeing heavy rainfall at times. There may even be a rumble of thunder in the distance. Also, with the high dewpoint temperatures, patchy fog is expected. The patchy fog will continue into the morning, but should burn off by the afternoon. The chances of seeing up to 2 inches of rain by Monday morning are a possibility. Due to the heavy rainfall, a Flood Watch is in effect from 8 p.m. this Saturday night into Monday morning. The advisory is in effect for possible street and river flooding.
Also, due to high tide expected around 9 a.m., a Coastal Flood Advisory is in effect for Providence, Bristol, Kent, and Newport County from 6 a.m. to 9 a.m. Sunday. There is the slight chance that some roads along the coast and basements could become flooded. The link also provides information on predicted tide heights for various bays in the state of Rhode Island.
We will finally see the rainfall end by early Tuesday morning. The low will slowly move offshore, taking the precipitation out to sea. A high pressure ridge will settle over the east coast, allowing for drier weather into Wednesday morning. On Wednesday, a low pressure system passing over Northern New England may bring a passing shower in the morning. Otherwise, it will be limited sunshine in the sky with mild temperatures.
A warm front moving up into Southern New England on Thursday will bring more showers by Thursday afternoon. The frontal boundary will pass to our south by early Friday morning. This will allow for some partial sunshine during the afternoon. However, a new low pressure system will move into the Mid-Atlantic by late Friday afternoon. This low is forecast to bring us more showers and light rain next Saturday. Temperatures for the extended period will be seasonable.
72 hour forecast:
Tonight: Heavy rain with possible street flooding at times. We will see a low of 40. Patchy fog is expected through the overnight.
Sunday: Moderate to heavy rain tapering to showers by the mid-afternoon. We will see a high of 47 with north-northeast winds of 10-13 mph. Patchy fog will end around 2 p.m.
Sunday night: Showers/light rain continues with a low of 34. Winds will be increasing from the north at 14-17 mph. Patchy fog is expected, but will burn off by 3 a.m.
Monday: Showers/light rain with a high of 42.
Monday night: Showers ending around 2 a.m. with a low of 35. Some precipitation may mix with snow showers in higher elevations.
Tuesday: Mostly sunny with a high of 49.
Tuesday night: Mostly cloudy with a low of 35.
Wednesday: Partly sunny with a possible late morning shower. Highs 53-56, lows 34-37.
Thursday: Cloudy with showers arriving by noon. Highs 52-55, lows 36-39.
Friday: Scattered showers ending by the early morning, with partly sunny skies. Showers return by the evening. Highs 50-53, lows 36-39.
Saturday: Showers/rain. Highs 48-51, lows 37-40.