-- Discussion containing changed information from previous version are highlighted. --
984
FXUS61 KRLX 090708
AFDRLX

AREA FORECAST DISCUSSION
National Weather Service Charleston WV
308 AM EDT Thu May 9 2024

.SYNOPSIS...
-- Changed Discussion --
Additional showers and storms today, some becoming strong to
severe. A cold front will promote cooler conditions Friday
and the weekend. Warmer with diurnal storms expected next week.
-- End Changed Discussion --

&&

.NEAR TERM /THROUGH TONIGHT/...
As of 235 AM Thursday...

A stationary boundary draped through parts of southeast Ohio
into north-central West Virginia yields the only sign of
lightning in our forecast area at the time of writing. This
low-topped convection poses a bit of a hydro concern early this
morning as it festers within light flow between 5,000-15,000ft
AGL, resulting in relatively slow storm motion to the north.
Rainfall rates of 1-2 in/hr within this band amidst tarnished
flash flood guidance due to previous activity may cause
localized flooding concerns during the predawn hours.

Otherwise, the bulk of stronger convection resides well south of
the forecast area early this morning, with even stratiform rain
now sailing away from our extreme southern zones. Flood Watch
for southwest Virginia and McDowell County in West Virginia
currently runs until later this morning, but if radar trends
hold, very little additional rainfall will sweep through and may
pose an election to end the Watch early.

Surface low pressure approaching from the west today will
promote another dose of showers and storms as it tracks along
the stationary boundary. A cold front will gradually clear out
the area late tonight, but until then hi-res guidance suggests
isolated activity sprouting during the late afternoon/early
evening followed by a segmented line of convection drifting
southward for the first part of the overnight hours. A few
storms could reach strong to severe thresholds, imposing the
threat for damaging wind gusts, hail, and a tornado or two.
Forecast rainfall amounts are anticipated to be less impactful
compared to previous days, but a few isolated spots for flooding
concerns could sprout throughout the period given how saturated
the ground remains in response to unsettled weather this week.

&&

.SHORT TERM /FRIDAY THROUGH SUNDAY NIGHT/...
-- Changed Discussion --
As of 230 AM Thursday...

Most of Friday should be unsettled with very little chances of
diurnal thunderstorm potential although we cannot rule them out.
An upper level trough will be the culprit for Friday. Going
into Saturday there will be a break during the morning as
a surface ridge builds in after the aforementioned trough moves
east. But by the afternoon, chances of shower and storm
potential will rise across the entire area as a surface low with
upper level support moves into the region. This feature will be
forecast to graze the northern periphery of our CWA.

Relatively quiet weather anticipated for Sunday as surface high
pressure and upper level ridging builds in and will only allow
for the northeast mountains to endure chances for shower and
storm activity mainly for the afternoon and evening. The rest of
Sunday will be dry area-wide and going into the next period.
Temperatures will remain cooler than normal through Sunday.
-- End Changed Discussion --

&&

.LONG TERM /MONDAY THROUGH WEDNESDAY/...
-- Changed Discussion --
As of 230 AM Thursday...

For Monday, expect dry conditions into the afternoon although
the rest of the day will have shower chances with little in the
way of any probability for thunderstorms. Another surface low
with upper level support is forecast to approach the area late
Monday keeping chances for shower activity through the rest of
this period along with daily diurnal chances for thunderstorm
activity. This period will also have a warming trend to get the
area back up to around seasonable temperatures, maybe even
slightly above, starting Monday and continuing through midweek.
-- End Changed Discussion --

&&

.AVIATION /07Z THURSDAY THROUGH MONDAY/...
-- Changed Discussion --
As of 235 AM Thursday...

Relatively quiet conditions currently reside at our airfields
early this morning amid overnight convection thriving in the
Tennessee Valleys and down into the Carolinas. VFR ceilings hold
steady early this morning, but should see clouds lower into MVFR
after sunrise Thursday morning as showers pass through the area.
Could also see a round of afternoon thunderstorms filter through
ahead of a cold front, posing the addition of VCTS at a few
sites later today.

Ceilings lower further down late tonight into Friday morning as
the aforementioned cold front sinks to the south and east,
leaving behind a plethora of moisture in its wake. IFR cigs grow
more likely just before midnight.

FORECAST CONFIDENCE AND ALTERNATE SCENARIOS THROUGH 06Z FRIDAY...

FORECAST CONFIDENCE: Medium.

ALTERNATE SCENARIOS: Timing of MVFR CIG restrictions early this
morning may vary from the forecast.


EXPERIMENTAL TABLE OF FLIGHT CATEGORY OBJECTIVELY SHOWS CONSISTENCY
OF WFO FORECAST TO AVAILABLE MODEL INFORMATION:
H = HIGH:   TAF CONSISTENT WITH ALL MODELS OR ALL BUT ONE MODEL.
M = MEDIUM: TAF HAS VARYING LEVEL OF CONSISTENCY WITH MODELS.
L = LOW:    TAF INCONSISTENT WITH ALL MODELS OR ALL BUT ONE MODEL.

DATE                              THU 05/09/24
UTC 1HRLY       06   07   08   09   10   11   12   13   14   15   16   17
EDT 1HRLY       02   03   04   05   06   07   08   09   10   11   12   13
CRW CONSISTENCY  H    H    H    H    H    M    H    H    H    H    H    M
HTS CONSISTENCY  H    H    H    H    H    M    H    H    H    H    H    H
BKW CONSISTENCY  H    H    H    H    H    H    H    L    H    H    M    H
EKN CONSISTENCY  H    H    L    L    L    L    H    H    H    H    H    H
PKB CONSISTENCY  H    H    H    H    H    H    L    H    H    H    H    H
CKB CONSISTENCY  H    H    H    H    H    H    H    H    H    H    H    H

AFTER 06Z FRIDAY...
IFR conditions possible in fog and/or stratus Friday morning.
-- End Changed Discussion --

&&

.RLX WATCHES/WARNINGS/ADVISORIES...
WV...Flood Watch until 8 AM EDT this morning for WVZ033.
OH...None.
KY...None.
VA...Flood Watch until 8 AM EDT this morning for VAZ003-004.

&&

$$

SYNOPSIS...JZ/MEK
NEAR TERM...MEK
SHORT TERM...JZ
LONG TERM...JZ
AVIATION...MEK