Happy Tuesday!!
Light returns showing up on radar across parts of the area this
morning, but the closest observations of precipitation reaching
the surface continue to be back across central and eastern
Pennsylvania. High resolution models generally seem to have a
good handle on this, with little in the way of precipitation
until closer to noon as the area of precipitation currently
across eastern Virginia lifts northeast. Made only minor changes
with this update, mostly to capture the latest temperature
trends.
A weakening area of low pressure will track east out of the
Ohio Valley through the day today, eventually passing south of
the area this evening. As it does so, precipitation chances will
increase through the morning hours, with light rain becoming
likely during the afternoon. With the warm front remaining
suppressed to the south, temperatures will be noticeably cooler
than the past few days, with highs remaining in the upper 40s
to around 50 under plenty of cloud cover.
The steadiest precipitation will come to an end tonight as the
low continues to weaken and track off to the east. At the same
time, another, more potent, low will begin to develop across the
Ohio Valley by Wednesday morning. With the local area in
between the two systems, the combination of abundant low level
moisture and easterly flow will result in a chance of drizzle or
at times light rain, along with areas of fog. Have capped PoPs
around 30 percent during the day on Wednesday, and expect
overall precipitation amounts to remain light, generally only a
few hundredths of an inch at most.
Temperatures tonight and Wednesday will continue to run above
normal, with overnight lows in the mid 30s to around 40 and
daytime highs in the mid to upper 40s.
As primary low pressure moves across western PA/NY Wed night, a
deepening triple point low will approach and move across.
Spotty light/rain/drizzle and areas of fog initially as we
remain in the cool sector will give way to a band of showers and
isold/sct tstms, mainly around and after midnight. Precip
should taper off from SW-NE Thursday from morning into early
afternoon, and could mix with or change to snow before ending in
the higher elevations well north/west, with little to no
accumulation.
A longwave trough will become a closed upper low over SE Canada
and northern New England later this week. Have gone with a dry
forecast for late Thursday through the weekend with a
persistent/brisk W flow, shifting NW Friday night into the
weekend as the tail end of the closed low drifts across and
sends a sfc cold front across. Specific pieces of energy around
the flow could lead to some snow showers or flurries at times.
High pressure will finally build to the coast early next week.
Temperatures start out above normal, then should run below
normal Friday through Monday.
Happy Tuesday!!
Light returns showing up on radar across parts of the area this
morning, but the closest observations of precipitation reaching
the surface continue to be back across central and eastern
Pennsylvania. High resolution models generally seem to have a
good handle on this, with little in the way of precipitation
until closer to noon as the area of precipitation currently
across eastern Virginia lifts northeast. Made only minor changes
with this update, mostly to capture the latest temperature
trends.
A weakening area of low pressure will track east out of the
Ohio Valley through the day today, eventually passing south of
the area this evening. As it does so, precipitation chances will
increase through the morning hours, with light rain becoming
likely during the afternoon. With the warm front remaining
suppressed to the south, temperatures will be noticeably cooler
than the past few days, with highs remaining in the upper 40s
to around 50 under plenty of cloud cover.
The steadiest precipitation will come to an end tonight as the
low continues to weaken and track off to the east. At the same
time, another, more potent, low will begin to develop across the
Ohio Valley by Wednesday morning. With the local area in
between the two systems, the combination of abundant low level
moisture and easterly flow will result in a chance of drizzle or
at times light rain, along with areas of fog. Have capped PoPs
around 30 percent during the day on Wednesday, and expect
overall precipitation amounts to remain light, generally only a
few hundredths of an inch at most.
Temperatures tonight and Wednesday will continue to run above
normal, with overnight lows in the mid 30s to around 40 and
daytime highs in the mid to upper 40s.
As primary low pressure moves across western PA/NY Wed night, a
deepening triple point low will approach and move across.
Spotty light/rain/drizzle and areas of fog initially as we
remain in the cool sector will give way to a band of showers and
isold/sct tstms, mainly around and after midnight. Precip
should taper off from SW-NE Thursday from morning into early
afternoon, and could mix with or change to snow before ending in
the higher elevations well north/west, with little to no
accumulation.
A longwave trough will become a closed upper low over SE Canada
and northern New England later this week. Have gone with a dry
forecast for late Thursday through the weekend with a
persistent/brisk W flow, shifting NW Friday night into the
weekend as the tail end of the closed low drifts across and
sends a sfc cold front across. Specific pieces of energy around
the flow could lead to some snow showers or flurries at times.
High pressure will finally build to the coast early next week.
Temperatures start out above normal, then should run below
normal Friday through Monday.
