-- Discussion containing changed information from previous version are highlighted. --
000
FXUS61 KPBZ 201521
AFDPBZ

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PITTSBURGH PA
1121 AM EDT SUN APR 20 2014

.SYNOPSIS...
HIGH PRESSURE WILL BRING DRY AND WARM WEATHER THROUGH MONDAY
BEFORE A COLD FRONT BRINGS SHOWERS MONDAY NIGHT INTO TUESDAY.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
SUBSIDENCE WILL KEEP CONDITIONS DRY WITH PLENTIFUL SUNSHINE THIS
AFTERNOON AS LATEST SATELLITE IMAGERY SHOWS THIN CIRRUS MOVING
ACROSS THE REGION. TEMPERATURES WILL BE SLIGHTLY ABOVE NORMAL.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH WEDNESDAY NIGHT/...
THE WARMER THAN NORMAL REGIME WILL CONTINUE WITH HIGH PRESSURE THROUGH
MONDAY AS WEAK WARM ADVECTION CONTINUES.

THE APPROACH OF A SHORTWAVE TROUGH FROM THE WESTERN GREAT LAKES
WILL INCREASE CLOUD COVERAGE MONDAY EVENING AND BRING THE NEXT
CHANCE OF SHOWERS ASSOCIATED WITH A SURFACE COLD FRONT EARLY
TUESDAY MORNING THROUGH TUESDAY EVENING. INSUFFICIENT INSTABILITY
IS DIAGNOSED AT THIS TIME AND THEREFORE HAVE CONTINUED TO LEAVE
OUT THUNDER IN THE PERIOD.

NORTHWEST FLOW IS PROGGED TO KEEP CLOUDS COVERING MUCH OF THE
REGION WEDNESDAY BEFORE HIGH PRESSURE BEGINS TO CLEAR OUT CLOUDS
THE LATTER HALF OF THE DAY.

THE COLD FRONT WILL LOWER TEMPERATURES TO WELL BELOW AVERAGE
NUMBERS TUESDAY NIGHT THROUGH THE REST OF THE PERIOD.

&&

.LONG TERM /THURSDAY THROUGH SATURDAY/...
SURFACE RIDGE WILL KEEP DRY AND SEASONAL CONDITIONS THURSDAY. A
COLD FRONT WILL APPROACH LATER THURSDAY NIGHT AND CROSS THE REGION
FRIDAY AS UPPER LEVEL CLOSED LOW SLOWLY WORKS EAST FROM THE GREAT
LAKES INTO EASTERN CANADA NEXT WEEKEND. SCATTERED SHOWERS FRIDAY
FOLLOWED BY COOL AND UNSETTLED WEATHER FOR THE WEEKEND.

&&

.AVIATION /15Z SUNDAY THROUGH THURSDAY/...
VFR EXPECTED THROUGH MONDAY AS HIGH PRESSURE DOMINATES THE AREA.

.OUTLOOK.../MONDAY THROUGH THURSDAY/...
THE NXT CHC FOR RESTRICTIONS IS EXPECTED LATER MONDAY NIGHT AND
TUESDAY WITH A COLD FRONT.

&&

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

&&

$$

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