141
FXUS61 KPBZ 052136 AAA
AFDPBZ
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PITTSBURGH PA
536 PM EDT SAT JUL 5 2008
SYNOPSIS
A WEAK AREA OF LOW PRESSURE ALOFT WILL BRING A CHANCE OF AFTERNOON
AND EVENING SHOWERS AND THUNDERSTORMS MAINLY ALONG THE HIGHER
ELEVATIONS EAST OF PITTSBURGH THROUGH SUNDAY. A DRY AND WARMER DAY
FOR MONDAY WILL GIVE WAY TO A CHANCE OF SHOWERS AND STORMS TUESDAY
AS A FRONT APPROACHES.
NEAR TERM /THROUGH SUNDAY/
HAVE UPDATED TO REMOVE ALL MENTION OF PCP EXCEPT FOR SE RIDGES.
ALSO LOWERED CLOUD COVER AS SKIES CLEARING AS SUN ANGLE LOWERS.
WEAK UPPER LOW OVER THE OHIO VALLEY WILL SLOWLY OPEN AND EDGE
EAST THROUGH MONDAY. SCATTERED SHOWERS AND STORMS ON FRONT SIDE OF
THIS LOW THIS EVENING AND AGAIN SUNDAY AFTERNOON MAINLY SOUTH AND
EAST OF PITTSBURGH. LOW BEGINS TO LIFT OUT WITH HEIGHTS RISING FOR
A WARMER DAY SUNDAY.
SHORT TERM /SUNDAY NIGHT THROUGH TUESDAY/
LEFTOVER DIURNAL SHOWERS SUNDAY EVENING OTHERWISE DRY WEATHER
EXPECTED THROUGH MONDAY. SOUTHWEST FLOW AT THE SURFACE AND RISING
HEIGHTS ALOFT WILL PUSH TEMPERATURES ABOVE NORMAL WITH HUMID
CONDITIONS. FRONT WILL APPROACH FORM GREAT LAKES DURING TUESDAY
WITH SCATTERED SHOWERS AND STORMS ESPECIALLY IN THE AFTERNOON.
LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/
COLD FRONT DROPS INTO SOUTHERN GREAT LAKES TUESDAY NIGHT AND ACROSS
CWA ON WEDNESDAY WITH CHANCE OF THUNDERSTORMS LATE TUESDAY NIGHT IN
NORTHERN ZONES AND ACROSS ENTIRE CWA WEDNESDAY. SFC HIGH PRESSURE
BUILDS INTO REGION ON ON THURSDAY WITH PARTLY CLOUDY SKIES AND AT OR
SLIGHTLY BELOW NORMAL TEMPERATURES. UPPER LEVEL RIDGE BEGINS TO
BUILD INTO EASTERN UNITED STATES ON FRIDAY AND REMAINS IN PLACE
THROUGH THE WEEKEND BRINGING PARTLY TO MOSTLY SUNNY SKIES...ABOVE
NORMAL TEMPERATURES AND INCREASING HUMIDITY.
AVIATION /22Z SATURDAY THROUGH THURSDAY/
ISOLD TSTMS POSSIBLE IN NRN WV TIL 00Z. SCTD TO BKN 030-050
THROUGH 00Z WITH UNRESTRICTED VISIBILITY. VFR CIGS AND VSBY
THROUGH 06Z WITH MVFR VISIBILITIES DEVELOPING AFTER 06Z. EXPECT
IFR VSBY AROUND SUNRISE AT TERMINALS AFFECTED BY VALLEY
FOG...AGC... HLG...LBE...ZZV. FRONT REMAINS STALLED TO SOUTHEAST
OF CWA SUNDAY WITH POSSIBLY OF AFTN THUNDERSTORMS VCNTY OF RIDGES
AS UPPER TROF SWINGS EAST. HIGH PRESSURE BUILDS OVER OHIO RIVER
VALLEY MONDAY AND TUESDAY WITH GENERAL VFR CONDS OUTSIDE OF PATCHY
MORNING FOG.
COLD FRONT DROPS THROUGH THE GREAT LAKES TUESDAY NIGHT AND ACROSS
CWA ON WEDNESDAY WITH CHANCE OF THUNDERSTORMS. HIGH PRESSURE BUILDS
INTO AREA THURSDAY WITH CLEARING SKIES AND MORNING FOG.
PBZ WATCHES/WARNINGS/ADVISORIES
MD...NONE.
OH...NONE.
PA...NONE.
WV...NONE.
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