Area Forecast Discussion
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000 FXUS61 KPBZ 271219 AFDPBZ Area Forecast Discussion National Weather Service Pittsburgh PA 819 AM EDT Mon Mar 27 2017 .SYNOPSIS...
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More rain is expected tonight and Tuesday as another area of low pressure crosses the region. Dry weather and seasonal temperatures are expected by mid week.
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&& .NEAR TERM /THROUGH TONIGHT/...
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The only tweak made with the 815am update was to timing of Pops across eastern counties. Only showers remaining in the area are across the WV/MD ridges, so trimmed pops across Pennsylvania and kept showers lingering elsewhere another hour or two. Previous discussion follows. Residual showers will end this morning with passage of a mid level trough axis extending from the parent low now filling north of the Great Lakes. Used radar trends and consensus short pops to construct this portion of the forecast. Passage of this system occluded front will not alleviate the warm temperatures over the region. Expect highs today about 15 to 20 degrees above the seasonal averages while shortwave ridging maintains dry weather through the afternoon.
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&& .SHORT TERM /TUESDAY THROUGH WEDNESDAY/... By Monday evening, showers with the next low pressure system are projected out of the west, and can be expected to persist into Tuesday before building high pressure in the wake of that systems cold front invokes suppression from the northwest later in the day. Cooler and drier air may thus be anticipated for Tuesday night and Wednesday. && .LONG TERM /WEDNESDAY NIGHT THROUGH SUNDAY/... Another emerging Plains closed low is forecast to spread rain across much of the eastern CONUS during the latter half of the week. Expect a brief period of dry weather behind that system next weekend before redeterioration for the start of the work-week. Seasonal temperatures are expected for the period. && .AVIATION /12Z MONDAY THROUGH FRIDAY/... Upper level low pressure will complete passage over the region early this morning with diminishing rain and improvement in conditions in the wake. Condition redeterioration can again be expected tonight with restrictions through Tuesday as another low spreads rain over the area. Outlook... Restrictions are likely again by late week as another broad low affects the Upper Ohio Valley. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...None. OH...None. PA...None. WV...None. && $$

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