Synopsis...
A huge rainmaker is coming our way... the remnant low of Nicole will be moving up the coast on Thursday, bringing very heavy rainfall to the central and eastern parts of the state. Many areas will receives 2 or more inches of rain tomorrow, with some spots potentially seeing 8+ inches of rainfall. A weak disturbance could bring a scattered shower to the northwest Friday night into Saturday morning. Chilly lows will also be a story, some lows dropping below 40 degrees over the weekend.
Short Term...
The biggest story of this forecast period is the remnant low of TS Nicole moving up the coast. The NHC currently has it classified as a gale center, so areas in the extreme eastern parts of the state will see some very breezy conditions in lieu of the heavy rain... Rain totals from this storm could potentially be greater than 8 inches locally, with pretty much everywhere seeing at least 2-4 inches of rain. Areas in the west, such as Pittsburgh, should be spared all together of this system, probably getting mostly cloudy skies. While temperatures will be seasonable on Thursday, they will drop significantly on Friday. The average forecast MOS prediction is about 10 degrees cooler from region to region. This trend of cooler temperatures and much cooler overnight lows will continue into the weekend. Friday looks to be a mostly clear day across the state, with a NW flow and evaporational cooling keeping the air stable and mostly cloud free.
Long Term...
A weak trough looks to sag into the NW region late night Friday into Saturday morning. Most regions will see a 30-40% chance of a shower on Saturday. This trough though, according to GFS and WRF outputs, diminishes by the evening on Saturday, so expect mostly cloudy skies overnight Saturday. A similar situation sets up on Sunday with another trough building in from the NW, though this one won't be as potent. Some areas will see a scattered shower out of this, but shouldn't be anything significant. Regardless, the NW flow stimulated by both of these systems will keep temperatures well below average through the weekend. A westerly flow begins to build in on Monday, which will warm temperatures back up. Also, for Monday, a dry air mass also looks to build in. Next week looks to start off beautifully.
Andrew Dzambo
We Are... Penn State Meteorology
A huge rainmaker is coming our way... the remnant low of Nicole will be moving up the coast on Thursday, bringing very heavy rainfall to the central and eastern parts of the state. Many areas will receives 2 or more inches of rain tomorrow, with some spots potentially seeing 8+ inches of rainfall. A weak disturbance could bring a scattered shower to the northwest Friday night into Saturday morning. Chilly lows will also be a story, some lows dropping below 40 degrees over the weekend.
Short Term...
The biggest story of this forecast period is the remnant low of TS Nicole moving up the coast. The NHC currently has it classified as a gale center, so areas in the extreme eastern parts of the state will see some very breezy conditions in lieu of the heavy rain... Rain totals from this storm could potentially be greater than 8 inches locally, with pretty much everywhere seeing at least 2-4 inches of rain. Areas in the west, such as Pittsburgh, should be spared all together of this system, probably getting mostly cloudy skies. While temperatures will be seasonable on Thursday, they will drop significantly on Friday. The average forecast MOS prediction is about 10 degrees cooler from region to region. This trend of cooler temperatures and much cooler overnight lows will continue into the weekend. Friday looks to be a mostly clear day across the state, with a NW flow and evaporational cooling keeping the air stable and mostly cloud free.
Long Term...
A weak trough looks to sag into the NW region late night Friday into Saturday morning. Most regions will see a 30-40% chance of a shower on Saturday. This trough though, according to GFS and WRF outputs, diminishes by the evening on Saturday, so expect mostly cloudy skies overnight Saturday. A similar situation sets up on Sunday with another trough building in from the NW, though this one won't be as potent. Some areas will see a scattered shower out of this, but shouldn't be anything significant. Regardless, the NW flow stimulated by both of these systems will keep temperatures well below average through the weekend. A westerly flow begins to build in on Monday, which will warm temperatures back up. Also, for Monday, a dry air mass also looks to build in. Next week looks to start off beautifully.
Andrew Dzambo
We Are... Penn State Meteorology
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