815
FXUS61 KRLX 191815
AFDRLX

AREA FORECAST DISCUSSION
National Weather Service Charleston WV
215 PM EDT Sun May 19 2024

.SYNOPSIS...
Outside the chance for showers/thunderstorms in the mountains
this afternoon, a high pressure system will provide dry weather
through Tuesday, with increasingly hot afternoons.

&&

.NEAR TERM /THROUGH MONDAY/...
As of 215 PM Sunday...

Mid-upper level high pressure provides mainly dry weather with
morning valley fog and afternoon cumulus amid above normal
temperatures, which will reach at least the mid 80s across the
lowlands this afternoon where they have not already, and then
the upper 80s across the lowlands Monday afternoon. There will
be somewhat of a ridge/valley split on lows tonight, lower 60s
hilltops and upper 50s valleys, and 50s in the mountains.

A weak surface trough along the mountains, along with the
elevated heat source effect, was providing enough focus for a
more stout cumulus field, with some of the cumulus convection
vigorous enough for a shower or even a thunderstorm. With
precipitable water values under an inch, water issues are not
anticipated. Mid-upper level ridging and less of a surface
trough, if any, should keep Monday free of showers and
thunderstorms altogether.

&&

.SHORT TERM /MONDAY NIGHT THROUGH WEDNESDAY NIGHT/...
As of 230 AM Sunday...

Dry weather with a warming trend will be the theme for the short
term, with a broad high pressure center and 500MB ridge over
the area Monday and Tuesday. There remains a remote chance for
a diurnal shower or thunderstorm Tuesday afternoon across the
mountains and SE Ohio as a shortwave moves through. Otherwise,
mostly quiet across the region to start the week.

Temperatures will be above normal starting Monday into the
long- term period, with upper 80s to near 90 across the lowlands
both days. Temperatures could trend a bit higher if the high
pressure center moves overhead, but so far all the models are
keeping it to our east over VA. Still, if temperatures reach 90F
or higher sensitive individuals should take precautions to
prevent heat-related illness.

&&

.LONG TERM /THURSDAY THROUGH SATURDAY/...
As of 1230 PM Sunday...

Frontal boundary will move through the region Thursday, potentially
stalling out just to our south early Friday, as surface high
pressure briefly builds in across the north. Most of the CWA will
remain dry on Friday, however, isolated showers and storms will
continue to be possible across the south in particular, closer to
the front.  Active weather will return over the weekend, with the
approach of another system from the west.

&&

.AVIATION /17Z SUNDAY THROUGH THURSDAY/...
As of 215 PM Sunday...

Isolated showers and thunderstorms firing in the mountains this
afternoon may impact BKW, where VCTS/CB was coded, or even EKN.
Otherwise VFR conditions prevail amid a mainly scattered
afternoon cumulus field.

VFR conditions on a mainly clear night tonight will likely
again give way to valley fog, mainly in valleys in and near the
mountains. The forecast reflects VLIFR dense fog at EKN 06Z or
07Z to 12Z, not quite as long as last night, and LIFR at CKB
08Z-12Z, burning off at both locations 12Z-13Z.

CRW and PKB will likely have a brief period of MVFR to IFR
mist/fog just before and around dawn Monday morning, which
should also then be gone by 13Z.

A VFR day is in store for Monday with an afternoon cumulus
field, and a hot afternoon across the lowlands. High pressure
aloft should keep the weather dry on Monday.

Light north to northeast to variable surface flow this
afternoon will become calm tonight, and then light and variable
to southeast on Monday. Light flow aloft through tonight will
veer to light east and then light southeast on Monday.

FORECAST CONFIDENCE AND ALTERNATE SCENARIOS THROUGH 18Z MONDAY...

FORECAST CONFIDENCE: High.

ALTERNATE SCENARIOS: Light winds at EKN and BKW may vary in
direction this afternoon on account of a weak surface trough
nearby to the east. Timing and intensity of fog formation
overnight tonight could vary.

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.

UTC 1HRLY       15   16   17   18   19   20   21   22   23   00   01   02
EDT 1HRLY       11   12   13   14   15   16   17   18   19   20   21   22
CRW CONSISTENCY  H    H    H    H    H    H    H    H    H    H    H    H
HTS CONSISTENCY  H    H    H    H    H    H    H    H    H    H    H    H
BKW CONSISTENCY  M    M    H    H    H    H    H    H    H    H    H    H
EKN CONSISTENCY  M    H    H    H    H    H    H    H    H    H    H    H
PKB CONSISTENCY  H    H    H    H    H    H    H    H    H    H    H    H
CKB CONSISTENCY  M    H    H    H    H    H    H    H    H    H    H    H

AFTER 18Z MONDAY...
No widespread IFR conditions are expected at this time.

&&

.RLX WATCHES/WARNINGS/ADVISORIES...
WV...None.
OH...None.
KY...None.
VA...None.

&&

$$

SYNOPSIS...TRM/SL
NEAR TERM...TRM
SHORT TERM...LTC
LONG TERM...SL
AVIATION...TRM