A soaking is on tap for Boston Monday night with Karen partially to blame.
An approaching cold front and some moisture from Karen, now a tropical rainstorm, will combine to spread a band of heavy rain through Boston Monday night.
The heaviest rain will come in between the Monday evening and Tuesday morning commutes.
For those driving in between those times, the downpours threaten to slow down motorists by reducing visibility and heightening the risk of vehicles hydroplaning at highway speeds.
Umbrellas will be a necessity for those traveling by foot.
The rain will generally total 0.50 to 1.00 inch in less than six hours. There will be locally higher amounts, and that is where AccuWeather.com meteorologists will be most concerned for flash flooding to occur in low-lying and poor drainage areas.
A burst of strong winds capable of causing minor tree damage and sporadic power outages could accompany one or two of the heaviest downpours.
Sustained southerly winds will also increase as Monday progresses with speeds ranging from 12 to 25 mph for the afternoon and evening. Winds on the higher end of that range, with stronger gusts, will be most common near the coast, where seas will turn rough for small craft.
Otherwise during the daylight hours of Monday, numerous clouds and a passing afternoon shower will be around.
Following the passage of the cold front, a drier day with clouds breaking for some sunshine and a high of 70 degree will unfold for Tuesday. Plenty of sunshine and a seasonable high of 65 degrees will prevail on Wednesday.
Beyond midweek, AccuWeather.com meteorologists are monitoring the possibility of a storm developing near the East Coast and ruining the sunny forecasts for later in the week.
As a large storm rolls out of the Plains and Midwest, a swath of snow, ice and travel disruptions will extend into the Northeast beginning during the latter part of the weekend.
February's record cold is expected to weaken across the East and Midwest heading into the month of March.
The weekend is setting up to be a slippery and messy one across a large part of the Plains and Midwest as a new winter storm rolls northeastward.
Residents in Spokane, Washington, recently caught sight of the unique phenomenon known as "hole punch" clouds that cause a gaping hole in the otherwise cloudy sky.
The week kicked off with a heavy snow expanding across areas of the Four Corners states before striking the South with snow and ice, causing treacherous travel from Shreveport, Louisiana, to Memphis, Tennessee.
Snowshoers across the country will descend upon Eau Claire, Wisconsin, from Feb. 27 to March 1 to compete in the 2015 U.S. National Snowshoe Championships.
New England (1717)
First of a series of storms of The Great Snow which finally left about 36" on ground, held Boston snowbound for 3 weeks. Great barometric depression moved across Arkansas, Tennessee, Missouri and Illinois. Lowest pressure 28.71" at Springfield, IL.
Harrisburg, IL (1999)
A thunderstorm wind gust to 80 mph causing a roof to be blown off a house and a car to be blown off the road.