Area Forecast Discussion
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
FXUS61 KPBZ 281908
AFDPBZ

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PITTSBURGH PA
308 PM EDT TUE JUL 28 2015

.SYNOPSIS...
WARM WEATHER WILL CONTINUE UNTIL A COLD FRONT PASSES ON THURSDAY
MORNING.

&&

.NEAR TERM /THROUGH TONIGHT/...
PRESTON TUCKER AND GARRETT COUNTIES MAY STILL SEE A COUPLE
SHOWERS AND AN ISOLATED THUNDERSTORM OR TWO THE REST OF THE
AFTERNOON WITH A STALLED SURFACE BOUNDARY STILL LINGERING IN THE
VICINITY BUT ALL OTHER AREAS WILL REMAIN DRY WITH TEMPERATURES
HOLDING IN THE UPPER 80S UNDER PARTLY CLOUDY SKIES FROM ALLEGHENY
COUNTY SOUTH. OVERNIGHT TEMPERATURES WILL BE VERY SIMILAR TO LAST
NIGHT WITH LIMITED CLOUD COVERAGE AND UPPER LEVEL CLOUD COVERAGE
INCREASING NORTH OF INTERSTATE 80 BY MORNING. PATCHY FOG
DEVELOPMENT SHOULD BE LIMITED TO GARRETT/PRESTON/TUCKER.

&&

.SHORT TERM /WEDNESDAY THROUGH FRIDAY/...
BROKEN RECORD FORECAST WILL CONTINUE FOR MOST OF THE DAY ON
WEDNESDAY WITH ABOVE AVERAGE TEMPERATURES AND A SLIGHT CHANCE OF
ISOLATED STORMS POPPING OVER THE RIDGES AND HIGHER TERRAIN OF
NORTHERN WV AND MD. A COLD FRONT WILL PASS OVER THE REGION
OVERNIGHT WEDNESDAY AND EXIT THURSDAY MORNING. LATEST FORECAST
SOUNDINGS SHOW WARM TEMPERATURES AND WEAK LAPSE RATES ALOFT...AND
WITHOUT THE ADDITIONAL INSTABILITY THAT WOULD COME WITH A DAYTIME
FRONTAL PASSAGE...ACTIVITY ALONG THE FRONT WILL BE MAINLY LIMITED
TO SCATTERED SHOWERS. THUNDERSTORMS IF ANY WILL BE ISOLATED.

DRY CONDITIONS WITH TEMPERATURES CLOSER TO NORMAL ARE EXPECTED
BEHIND THE FRONT ON THURSDAY AND FRIDAY AS SFC HIGH PRESSURE
BUILDS IN AND HEIGHTS ALOFT DECREASE IN RESPONSE TO A
STRENGTHENING WESTERN CONUS RIDGE.

&&

.LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/...
SURFACE RIDGING UNDER A BROAD EASTERN CONUS UPPER TROUGH SHOULD
KEEP MAINLY DRY AND SEASONALLY WARM WEATHER THROUGH THE
WEEKEND...THOUGH INCLUDED UNMENTIONABLE SLIGHT CHANCE POPS
SATURDAY AS A WEAKENING SHORTWAVE CROSSES. A STRONGER SHORTWAVE IS
PROGGED FOR EARLY NEXT WEEK WITH BETTER CHANCES FOR RAIN. FOLLOWED
CLOSE TO THE ENSEMBLE BASED WPC GUIDANCE TO SMOOTH OUT INDIVIDUAL
MODEL DIFFERENCES THROUGH THE PERIOD.

&&

.AVIATION /19Z TUESDAY THROUGH SUNDAY/...
VFR CONDITIONS WITH DIURNAL CU AND LIGHT WINDS ARE EXPECTED
THROUGH TONIGHT UNDER WEAK SURFACE RIDGING.

OUTLOOK...WEDNESDAY THROUGH SATURDAY...
RESTRICTIONS ARE POSSIBLE WITH A LATE WEDNESDAY/EARLY THURSDAY
COLD FRONT.

&&

.PBZ WATCHES/WARNINGS/ADVISORIES...
MD...NONE.
OH...NONE.
PA...NONE.
WV...NONE.

&&

$$



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.