490
FXUS61 KPBZ 261200
AFDPBZ
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PITTSBURGH PA
700 AM EST TUE JAN 26 2021
SYNOPSIS
RAIN AND FREEZING RAIN THIS MORNING WILL TRANSITION TO SHOWERS AS THE
MORNING PROGRESSES. THE REMAINDER OF THE WEEK WILL BE LARGELY DRY
WITH COOLER TEMPERATURES.
NEAR TERM /UNTIL 6 PM THIS EVENING/
PATCHY FREEZING RAIN CONTINUES TO PLAGUE AREAS GENERALLY ALONG AND
NORTH OF I 76, AS WELL AS IN THE RIDGES, SO HEADLINES REMAIN IN
EFFECT.
WARM ADVECTION VIA APPROACHING LOW PRESSURE WILL GRADUALLY IMPROVE
THE SITUATION AND PCPN WILL ALSO DIMINISH IN COVERAGE AS THAT SYSTEM
PASSES.
THE MORNING UPDATE FEATURED SOME COSMETIC TWEAKS TO PCPN TYPE AND
TEMPERATURE.
SHORT TERM /6 PM THIS EVENING THROUGH WEDNESDAY NIGHT/
LIGHT, SCATTERED PRECIPITATION WILL TRANSITION BACK TO SNOW THIS
EVENING IN COLD NORTHERLY FLOW ON THE BACKSIDE OF THE EXITING LOW.
DRY CONDITIONS (OUTSIDE OF SOME ISOLATED TO SCATTERED FLURRIES NORTH
OF PGH) ARE EXPECTED WEDNESDAY WITH SHORTWAVE RIDGING BEFORE THE NEXT
SOUTHERN STREAM SYSTEM DISTURBANCE RETURNS SNOW CHANCES MAINLY SOUTH
OF PITTSBURGH DURING THE NIGHT AS IT QUICKLY PASSES SOUTH OF THE
FORECAST AREA.
LONG TERM /THURSDAY THROUGH MONDAY/
OUTSIDE OF THE POSSIBILITY OF SCATTERED LIGHT SNOW NORTH OF
PITTSBURGH AND IN THE RIDGES UNDER COOL, NORTHWESTERLY FLOW OVER THE
LAKES, MOSTLY DRY WEATHER AND COOLER TEMPERATURES ARE EXPECTED
THURSDAY THROUGH SATURDAY FOLLOWED BY LOW PRESSURE AN UNSETTLED
CONDITIONS SUNDAY.
AVIATION /12Z TUESDAY THROUGH SATURDAY/
DEGRADED CONDITIONS IN RA AND FZRA CAN BE EXPECTED THIS MORNING, BUT
IMPROVEMENT WILL OCCUR AS LOW PRES CROSSES THIS AFTN.
OUTLOOK
VFR RETURNS ON WED, BEFORE A SYSTEM WED NIGHT AND THU BRINGS
POSSIBLE RESTRICTIONS IN SNOW TO AREAS SOUTH OF PIT.
PBZ WATCHES/WARNINGS/ADVISORIES
PA...WINTER WEATHER ADVISORY UNTIL 10 AM EST THIS MORNING FOR PAZ007>009-
013>016-020-022-023.
WINTER STORM WARNING UNTIL 10 AM EST THIS MORNING FOR PAZ074-076.
OH...WINTER WEATHER ADVISORY UNTIL 10 AM EST THIS MORNING FOR OHZ040-041.
WV...WINTER STORM WARNING UNTIL 10 AM EST THIS MORNING FOR WVZ512-514.
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