March 7, 2021

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Major Winter Storm For Susquehanna Valley Sunday & Monday – WGAL Susquehanna Valley Pa.

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WINTER STORM WARNING FOR THE SUSQUEHANNA VALLEY 3 AM SUNDAY TO 5 AM TUESDAYThe Susquehanna Valley should prepare for an impactful winter storm starting late Sunday morning, continue through Monday, then end early Tuesday morning. The Susquehanna Valley could see moderate to heavy snow at times, especially late Monday morning through Monday evening if conditions are favorable and a developing coastal low sets up in the right spot. High pressure centered over the region will keep weather cold and quiet for Saturday night. Temperatures fall to the lower 20s to upper teens for our overnight lows. Cloud cover from the approaching storm moves in from the southwest by dawn Sunday morning. The snow is expected to fall in two waves. The first wave of snow for us will start to fall late Sunday morning to early Sunday afternoon while the storm is moving across the Ohio River Valley. Temperatures will be in the mid 20s in the morning and then only rise to around 30 degrees by the mid afternoon. Steady light snow is expected through much of Sunday afternoon and early evening. By dusk, snowfall totals could be between 2 to 4 inches across the Valley. Be prepared for minor travel disruptions starting early Sunday afternoon and intensify through the early evening. The Ohio Valley storm will then begin to transfer its storm energy to a developing coastal storm Sunday night. As it does so, there may be a lull in the snowfall. Also, because of a more northerly track of the Ohio Valley storm, some warmer air may mix into the storm at cloud level. This could allow for a changeover from all snow to a wintry mix of snow/sleet/and rain for areas along and south of the Pennsylvania Turnpike (I-76). This switch over may glaze over some roads Sunday night into early Monday morning, making travel more difficult. It may also greatly impact our snowfall forecast totals. If we see more of a mix, or less intense precipitation, our overall snowfall totals may be lower. Our second wave of snow arrives Monday. By dawn Monday, the coastal storm will have fully developed and begin to head northward or northeastward. The bulk of our snow is expected to fall from late Monday morning, through the afternoon and early evening hours. Where this storm is located off the East Coast will have a huge role on just how much snow we could see through the day Monday. A 50 mile shift in track could mean the difference between seeing just a few inches of snow or possibly upwards of a foot of snow. Right now the current WGAL News 8 Storm Team believes much of the Susquehanna Valley should prepare for at least a plowable snow and possibly upwards of a foot of snow by Monday night. There is also some indication that there could be prolonged heavy snowfall in a few narrow bands due to the way the storm is forecast to be positioned off the East Coast. Where these heavy bands may set up is yet to be determined. There is still a chance the storm could stay far enough out to sea drier air gets pulled into the storm and the storm shuts down completely earlier in the day Monday. There are a lot of moving parts with this forecast, so please check back frequently for more updates through the weekend. The snow tapers and ends Monday night into Tuesday, but some light additional snowfall is possible. This snow is expected to be lighter, fluffier than the snow that falls for most of Monday, so some minor drifting is possible for travel late Monday night into Tuesday. Highs Tuesday will be in the lower 30s.Extended forecast:Wednesday: Partly sunny. High: 38. Thursday: Partly sunny. Chance of few snow showers late. High: 40. Friday: Mostly cloudy. Chance of rain/snow. High: 44. Saturday: Partly sunny. High: 40.

WINTER STORM WARNING FOR THE SUSQUEHANNA VALLEY 3 AM SUNDAY TO 5 AM TUESDAY

The Susquehanna Valley should prepare for an impactful winter storm starting late Sunday morning, continue through Monday, then end early Tuesday morning. The Susquehanna Valley could see moderate to heavy snow at times, especially late Monday morning through Monday evening if conditions are favorable and a developing coastal low sets up in the right spot.

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High pressure centered over the region will keep weather cold and quiet for Saturday night. Temperatures fall to the lower 20s to upper teens for our overnight lows. Cloud cover from the approaching storm moves in from the southwest by dawn Sunday morning.

The snow is expected to fall in two waves. The first wave of snow for us will start to fall late Sunday morning to early Sunday afternoon while the storm is moving across the Ohio River Valley. Temperatures will be in the mid 20s in the morning and then only rise to around 30 degrees by the mid afternoon. Steady light snow is expected through much of Sunday afternoon and early evening. By dusk, snowfall totals could be between 2 to 4 inches across the Valley. Be prepared for minor travel disruptions starting early Sunday afternoon and intensify through the early evening.

The Ohio Valley storm will then begin to transfer its storm energy to a developing coastal storm Sunday night. As it does so, there may be a lull in the snowfall. Also, because of a more northerly track of the Ohio Valley storm, some warmer air may mix into the storm at cloud level. This could allow for a changeover from all snow to a wintry mix of snow/sleet/and rain for areas along and south of the Pennsylvania Turnpike (I-76). This switch over may glaze over some roads Sunday night into early Monday morning, making travel more difficult. It may also greatly impact our snowfall forecast totals. If we see more of a mix, or less intense precipitation, our overall snowfall totals may be lower.

Our second wave of snow arrives Monday. By dawn Monday, the coastal storm will have fully developed and begin to head northward or northeastward. The bulk of our snow is expected to fall from late Monday morning, through the afternoon and early evening hours.

Where this storm is located off the East Coast will have a huge role on just how much snow we could see through the day Monday. A 50 mile shift in track could mean the difference between seeing just a few inches of snow or possibly upwards of a foot of snow. Right now the current WGAL News 8 Storm Team believes much of the Susquehanna Valley should prepare for at least a plowable snow and possibly upwards of a foot of snow by Monday night. There is also some indication that there could be prolonged heavy snowfall in a few narrow bands due to the way the storm is forecast to be positioned off the East Coast. Where these heavy bands may set up is yet to be determined. There is still a chance the storm could stay far enough out to sea drier air gets pulled into the storm and the storm shuts down completely earlier in the day Monday.

There are a lot of moving parts with this forecast, so please check back frequently for more updates through the weekend.

The snow tapers and ends Monday night into Tuesday, but some light additional snowfall is possible. This snow is expected to be lighter, fluffier than the snow that falls for most of Monday, so some minor drifting is possible for travel late Monday night into Tuesday. Highs Tuesday will be in the lower 30s.

Extended forecast:

Wednesday: Partly sunny. High: 38.

Thursday: Partly sunny. Chance of few snow showers late. High: 40.

Friday: Mostly cloudy. Chance of rain/snow. High: 44.

Saturday: Partly sunny. High: 40.

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