Apex, North Carolina 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

236
FXUS62 KRAH 301935
AFDRAH

Area Forecast Discussion
National Weather Service Raleigh NC
335 PM EDT Sun Mar 30 2025

.SYNOPSIS...
A cold front will approach the region on Monday and move across the
area Monday night. Cool high pressure will return to the area on
Tuesday and modify during the week.

&&

.NEAR TERM /TONIGHT/...
As of 238 PM Sunday...

An area of very light rain showers are lifting nwd across SE NC attm
in response to a very weak s/w trough moving NE along the Carolina
coast along with WAA-driven low-level lift.  CAMS show these widely
scattered showers continuing to lift NC across the coastal plain
through early evening, but with very little QPF or impact.
Otherwise, look for partly to mostly cloudy conditions to persist
this evening and overnight with low stratus developing after
midnight and persisting through daybreak Monday, all in response to
ongoing low level southerly flow with continuing warm and moist air
advection.  Low temps tonight will be nearly 20 degrees F above
normal... low-mid 60s.  Finally, it`s worth noting that nearly all
models show the shower activity that is currently to our west over
western and upstate SC dissipating before reaching central NC this
evening and overnight.  This could be due to possible mid-level
subsidence across our area in the wake of the exiting s/w trough
along the coast. Will continue to monitor this shower activity as it
moves east.

&&

.SHORT TERM /MONDAY AND MONDAY NIGHT/...
As of 335 PM Sunday...

* There is a Enhanced/Level 3 Risk for severe storms across Central
  NC Monday

On Monday morning, low pressure should be slightly north of Lake
Ontario, with a cold front extending south through Ohio into Alabama
and trailing west into Texas. Although there is a level 3/enhanced
risk across the area, there is still lots of uncertainty as to how
the severe weather event will evolve. There are at least three parts
of the forecast where uncertainty will have a major influence in the
forecast:

1) The GFS depicts a weak low tracking along the coastline producing
some morning showers across eastern counties. Leftover clouds from
these showers could limit instability in the east.
2) High-resolution models in the HREF do not show a solid line of
thunderstorms, but appear to be discrete cells. The mode will affect
the type of severe weather that develops.
3) A secondary line of thunderstorms is depicted on some high-
resolution models after the initial line moves through, affecting
primarily the Triad in the late evening.

The broad thinking remains that the cold front and area of
thunderstorms will reach the Triad between 2-6pm, the Triangle
between 4-8pm, and the I-95 corridor between 6-9pm. All hazards
(wind, hail, tornadoes) remain a possibility. With the mid-day
update, the Storm Prediction Center has reduced the chance of severe
hail across the region, but increased the chance of severe wind
across the entire area. Flash flooding should not be a widespread
threat with the storms moving through relatively quickly, with half
an inch to three quarters of an inch of rain forecast. The bulk of
the rain should come to an end by early morning. Highs will be
around 80 degrees in most locations, although in the mid to upper
70s in the Triad with the earlier arrival of showers/thunderstorms.
Lows will depend on how quickly cooler air moves in behind the front.
- while the Triad will likely fall into the upper 40s, temperatures
may only fall into the mid to upper 50s along the I-95 corridor.


&&

.LONG TERM /TUESDAY THROUGH SUNDAY/...
As of 307 PM Sunday...

Upper pattern: In wake of Monday`s exiting upper trough, anomalous
mid-level ridging will amplify and anchor along the eastern seaboard
through the early weekend.  The ridge will slowly break down, as a
broad upper trough oozes across the eastern seaboard late Sunday
into early next week.

Temperatures: After a dry, relatively cooler post-frontal Tuesday
(highs in the upper 60s to lower 70s), a considerable warming trend
is expected through mid to late this week. High pressure anchored
offshore will promote several days of persistent sly flow starting
Wednesday through much of the weekend. This will help ramp up both
temperatures and dew point temperatures. Guidance is in pretty good
agreement ramping highs into the upper 80s/around 90 on both
Thursday and Friday (and perhaps on Saturday as well across the
south).  Dew points during this time will rise into the 60s Thursday
through Saturday which will promote a bit more uncomfortable feel.

Precipitation: Dry conditions are expected through early Wednesday
as forcing and anomalous moisture remains to our west. From later
Wednesday onward, WAA-driven light precipitation appears possible
primarily across western areas Wednesday afternoon through Friday.
Increasingly wet conditions then appear possible later next weekend
into early the following week as a sfc boundary slowly slides into
the southeast.

&&

.AVIATION /18Z SUNDAY THROUGH FRIDAY/...
As of 151 PM Sunday...

Through 18Z Monday: VFR conditions attm across central NC with mid-
level cigs being reported. Flt conditions will deteriorate overnight
tonight with areas of IFR to LIFR stratus is expected to develop aft
06Z and low level moisture advection from the south continues.
Conditions will only improve to low-MVFR after sunrise through the
remainder of the TAF period. Otherwise, S to SW winds around 10kt
will continue through the period.  Some higher gusts are possible
through the rest of the daytime hours today.

After 18Z Monday: Scattered showers and storms are favored Mon late
afternoon into the late evening ahead of a cold front. Periodic
drops to IFR or lower are expected in heavier showers. VFR generally
is expected Tue onward, though morning low stratus is possible Wed
and Thu.

&&

.RAH WATCHES/WARNINGS/ADVISORIES...
None.

&&

$$

SYNOPSIS...np
NEAR TERM...np
SHORT TERM...Green
LONG TERM...Luchetti
AVIATION...np