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306
FXUS62 KRAH 231817
AFDRAH

Area Forecast Discussion National Weather Service Raleigh NC 215 PM
EDT Thu May 23 2024

.SYNOPSIS...
A warm and humid air mass over our region, combined with the passage
of a series of upper level disturbances over the area, will produce
unsettled weather through Monday, with daily chances of showers and
storms. A drier air mass will arrive by the middle of next week.

&&

.NEAR TERM /THROUGH TONIGHT/...
As of 920 AM Thursday...

Marginal Risk of severe thunderstorms this afternoon and evening.

Satellite and radar data indicate several MCV`s that may affect
portions of the region this afternoon and tonight. An initial MCV
was producing thunderstorms over portions of NE Tennessee. Another
was located in AL/GA and still another approaching the Tennessee
Valley region. The CAMS have backed off a bit on convection in
central NC this afternoon, holding off until late day and tonight.
We are not totally biting off on this scenario due to the forecast
CAPE values of 1500 to 2000 j/kg, but we will delay timing slightly
and lower initial POP. It appears the best chance of thunderstorms
will be in the NW associated with the initial wave in the afternoon.
This will be followed by the additions waves and potential
convection later in the and tonight. Highs in the mid to upper 80s
NW and upper 80s to lower 90s elsewhere.

&&

.SHORT TERM /FRIDAY AND FRIDAY NIGHT/...
As of 200 PM Thursday...

Confidence for Friday continues to be low with inconsistency for
timing and coverage. An upper level shortwave is expected to move
across the region bringing plenty of moisture through out the
atmosphere with PW values around 1.60 inches, which is slightly
above the daily average. Marginal to moderate CAPE across much of
the region especially in the southern half of the CWA mixed with
temps in the mid/upper 80s and dew points in the upper 60s to low
70s could result in a few isolated to scattered storms developing
across the region in the afternoon and early evening. It is not
expected to be a complete wash out across the region but some storms
could become strong and slow moving. For now, keeping chance pops
this afternoon and continuing overnight for showers and isolated
storms, but again, confidence of this is low. Overall, some breaks
in the clouds during the first half of the day, increased cloud
coverage and chance of storms second half of the day and continuing
into overnight. High will range from mid 80s in the north to upper
80s in the south. Lows will generally be in the mid to upper 60s.

&&

.LONG TERM /SATURDAY THROUGH THURSDAY/...
-- Changed Discussion --
As of  215 PM Thursday...

A wet pattern continues through much of the long term as daily
chances for showers and storms are expected Saturday through
Wednesday. Best chance for showers and storms will be Saturday as a
trough slowly moves across the region. SPC has the entire FA in a
Marginal threat (level 1/5) for severe storms to develop.  As the
tough moves east, most of Sunday is expected to be dry as the
surface frontal boundary resides to the north over the OH valley. A
few showers could begin to develop in the late afternoon Sunday
(especially in the NW Piedmont) ahead of the frontal boundary moving
across the MS valley. By Monday, expect an upward trend in PoPs
through at least Tuesday as the front is expected to move across the
state. Timing difference between the long range models vary from
early Tuesday to late Tuesday. The timing is expected to affect
strength and coverage of showers and storms as well as temperatures.
As the front moves offshore, Wednesday and Thursday is expect to be
dry as high pressure builds across the Mid-Atlantic region.

Temperatures in the long term start off above average with highs in
the upper 80s to low 90s. As the front sweeps through the region
temperatures will flip and become a few degrees below average with
highs in the low to mid 80s mid week.
-- End Changed Discussion --

&&

.AVIATION /18Z THURSDAY THROUGH MONDAY/...
-- Changed Discussion --
As of 206 PM Thursday...

Generally VFR conditions are expected through tonight. There is
chance of a shower or thunderstorm that could produce brief MVFR to
IFR conditions, mainly this afternoon and evening. A brief shower
can not be ruled out overnight.

Late tonight, patchy fog and low stratus are possible near FAY tonight
into Fri morning, but given inconsistencies in prior convection
this threat also includes low predictability.

Looking ahead: Primarily diurnally driven showers/storms will be
possible at all terminals Fri through Mon, with the highest chances
on Saturday and Monday afternoon and evenings.
-- End Changed Discussion --

&&

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

&&

$$
SYNOPSIS...Hartfield
NEAR TERM...Badgett
SHORT TERM...CA
LONG TERM...CA
AVIATION...Badgett/Swiggett