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047
FXUS61 KRLX 210732
AFDRLX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHARLESTON WV
332 AM EDT TUE OCT 21 2014

.SYNOPSIS...
A COLD FRONT CROSSES TODAY. LOW PRESSURE MEANDERS ALONG THE EAST
COAST WEDNESDAY THROUGH THURSDAY. HIGH PRESSURE BUILDS IN ON
FRIDAY. A WEAK FRONT POSSIBLE FOR THE WEEKEND.

&&

.NEAR TERM /THROUGH TONIGHT/
AT 06Z THE COLD FRONT IS JUST ABOUT INTO OUR FORECAST AREA AND
WILL RACE ACROSS THE AREA THROUGH THE MORNING HOURS. THERE ARE
ONLY ISOLATED SHOWERS ASSOCIATED WITH THE FRONT. BY 16Z ACCORDING
TO THE HRRR EXPECT THE SHOWERS TO BECOME MORE NUMEROUS. THESE
SHOWERS WILL BE ASSOCIATED WITH AN UPPER LEVEL IMPULSE. MODELS ARE
IN VERY GOOD AGREEMENT WITH THIS SCENARIO AND EVEN INDICATE THERE
COULD BE A FEW ISOLATED RUMBLES OF THUNDER LATE THIS AFTERNOON.
THE BEST LOCATION FOR THUNDER WILL BE IN THE HIGHER ELEVATIONS.

HAVE GONE ON THE LOWER SIDE OF GUIDANCE FOR TEMPERATURES TODAY AND
TONIGHT.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH THURSDAY/...
UPPER LOW WILL PIVOT DOWN INTO THE AREA TUESDAY NIGHT AND TO THE
MID ATLANTIC COAST ON WEDNESDAY. THIS SPELLS FOR A RATHER CHILLY
WX REGIME WITH A CLOUDY SKY AND SOME SHOWERS TO BOOT. THE UPPER
LOW WILL THEN PIVOT NE ALONG THE NORTHEAST COAST ON THURSDAY. AS
SUCH...THE INFLUENCE OF THIS SYSTEM WILL LESS SIGNIFICANTLY ACROSS
THE AREA. SUNSHINE SHOULD RETURN FOR MOST...EXCEPT IN THE N
MOUNTAINS AND ADJACENT LOWLAND COUNTIES WHERE CLOUDS WILL LINGER
AS A LINGERING INFLUENCE FROM THE UPPER LOW MAY BE REALIZED.

FOR TEMPS...TRIED TO UNDERCUT GUIDANCE FOR HIGHS ON WEDNESDAY
KEEPING MOST LOWLAND ZONES IN THE LOW 50S AND 40S IN THE THE HIGH
TERRAIN. STILL COULD BE SOME FROST ACROSS NE KY AND SE OH
WEDNESDAY NIGHT...ASSUMING THE CLOUDS WILL BREAK IN TIME.
THUS...HAVE COOLEST READINGS ACROSS THOSE AREAS. IMPROVEMENT IN
THE TEMPS WILL BE FELT ON THURSDAY DUE TO SUNSHINE...BUT STILL
CHILLY ACROSS N WV WHERE CLOUDS MAY LINGER.

AS FOR PRECIP TYPE WEDNESDAY NIGHT...H85 TEMPS TRY TO GO BELOW 0C
BUT SOUNDINGS DO NOT SUPPORT ICE CRYSTALS FOR SNOW. SO KEPT THINGS
LIQUID IN THE HIGHEST ELEVATIONS FOR NOW.

&&

.LONG TERM /THURSDAY NIGHT THROUGH MONDAY/...
OVERALL...DECENT MODEL AGREEMENT IN THE EXTENDED PERIOD. PERIOD
STARTS OUT WITH A CLOSED LOW OFF TO THE NORTHEAST/CENTERED ALONG THE
NEW ENGLAND COAST...WITH A FEW CLOUDS...MAINLY ACROSS THE
NORTHEASTERN ZONES CLOSER TO VICINITY OF THE LOW. SEASONABLE...BUT
DRY CONDITIONS ACROSS THE CWA WITH A W/NW FLOW.

A WEAK SHORTWAVE WILL DROP SOUTHEAST FRIDAY NIGHT AND
SATURDAY...FOLLOWED BY AN ADDITIONAL SHORTWAVE LATER SATURDAY.
MOISTURE IS LIMITED WITH EACH OF THESE FEATURES...AND EXPECTING
MOSTLY JUST AN INCREASE IN CLOUD COVER...ALTHOUGH LIGHT
PRECIPITATION CANNOT BE TOTALLY RULED OUT. FOR NOW...MAINTAINED A
DRY FORECAST.

RIDGE BUILDS ACROSS THE AREA SUNDAY THROUGH EARLY NEXT WEEK WITH DRY
CONDITIONS AND WARMING TEMPERATURES. ANOTHER FRONT APPROACHES AROUND
TUESDAY.

&&

.AVIATION /07Z TUESDAY THROUGH SATURDAY/...
COLD FRONT WILL RACE ACROSS THE AREA TODAY AND WILL HAVE ISOLATED
SHOWERS. MVFR CIGS WILL PERSIST THROUGH 13-14Z. CIGS WILL IMPROVE
FOR A FEW HOURS BUT EXPECT AN INCREASE IN SHOWERS BY 16Z AND MVFR
CIGS ONCE AGAIN. THERE COULD BE SOME ISOLATED -TSRA AREA WIDE FROM
19-22Z BUT WILL ONLY INCLUDE AT KPKB AND KEKN. MVFR CIGS WILL STAY
AROUND THROUGH TONIGHT. KPKB...KEKN...KCKB COULD BE IFR AFTER O6Z
ON THE 22ND.

W/NW WINDS LESS THAN 10KT EXPECTED THROUGH TODAY WITH HIGHER
GUSTS ALONG THE RIDGES.

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

FORECAST CONFIDENCE: MEDIUM.

ALTERNATE SCENARIOS: TIMING AND HOW LONG MVFR CONDITIONS COULD
LAST THIS MORNING. IFR CONDITIONS COULD BE MORE WIDESPREAD
OVERNIGHT TONIGHT.

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                              TUE 10/21/14
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    M    M    H    H    H    M    L    H    H    H    H
HTS CONSISTENCY  M    H    H    H    H    H    H    M    H    H    H    M
BKW CONSISTENCY  H    H    H    H    H    H    M    M    M    H    H    M
EKN CONSISTENCY  H    H    L    L    L    L    L    L    H    H    H    L
PKB CONSISTENCY  M    M    H    H    H    M    H    L    L    L    M    M
CKB CONSISTENCY  H    H    H    H    M    M    L    H    H    H    H    L

AFTER 06Z WEDNESDAY...
IFR IN LOW STRATUS POSSIBLY WEDNESDAY NIGHT INTO THURSDAY.

&&

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

&&

$$
SYNOPSIS...FB/ARJ
NEAR TERM...FB
SHORT TERM...ARJ
LONG TERM...SL
AVIATION...FB









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