February 24, 2021

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Ice, freezing rain coming to coat the Susquehanna Valley – WGAL Susquehanna Valley Pa.

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WINTER STORM WATCH IN EFFECT FROM 4 PM MONDAY TO 1 AM TUESDAY FOR FRANKLIN, CUMBERLAND, PERRY, DAUPHIN, LEBANON COUNTIES WINTER WEATHER ADVISORY IN EFFECT FOR ADAMS, YORK, LANCASTER, JUNIATA, MIFFLIN COUNTIESConfidence and concerns are growing for a prolonged, strong winter storm that likely will bring long periods of freezing rain late Monday evening and Monday night to the Susquehanna Valley. At this time, most of the Susquehanna Valley is forecast to pick up enough freezing rain to create a glaze of ice to possibly a few tenths of an inch of ice.Sunday night: Some light, patchy freezing drizzle is possible overnight which could lead to a glaze of ice on some roadways, bridges and overpasses. Some areas northwest of Harrisburg could also see some light snow and sleet at times leading to a light coating to 1 inch up the US-322 corridor, closer towards State College. “Patchy” means some areas of the Susquehanna Valley will also stay dry. Temperatures briefly fall to the upper 20s before rising to the lower 30s by sunrise. Because of the risk for some slick spots on roads, tonight is an impact time frame.Monday:A strong winter storm moves up the spine of the Appalachian Mountains through the day and arrives to the region Monday afternoon. The storm is drawing in moisture from the Gulf of Mexico, meaning there is warmer air near the cloud level. It looks likely a scattered and light wintry mix will begin to move in from the southwest to the northeast between 1 and 5 p.m. Monday with temperatures in the lower to mid-30s. There could be some minor travel issues for the evening rush hour. Conditions deteriorate after dark.The heart of the storm then moves in after dark and intensifies across the region.Confidence is growing we could see about a 12-hour period of steady freezing rain for most of the Valley from Monday evening to the pre-dawn hours Tuesday morning. Most of the Valley could pick up at least a tenth of an inch of ice accumulation from freezing rain. There is potential for areas along and near the I-81 corridor from Franklin County, through the Harrisburg metro, to Lebanon County where ice accumulations could reach a quarter of an inch or higher. This is enough ice to bring down large limbs, trees, and even power lines which could lead to power outages. Travel impacts will be highest Monday night into the pre-dawn hours of Tuesday. Temperatures will hover around 32 degrees all night. If we drop closer to 30 degrees, more ice may accumulate. However, it we stay at or above freezing, impacts to travel will be lower.Tuesday: Temperatures start to rise above freezing between 4 and 8 a.m. which switches the freezing rain to just plain rain. However, the damage may be done and there could still be icy conditions for the Tuesday morning commute. The rain should taper from southwest to northeast across the region, and all should be dry by 10 a.m. We may even see some peeks of sunshine later in the afternoon with highs in the upper 30s to 40 degrees.Another complex storm Thursday: This storm looks like it will start off as widespread snow Thursday morning since colder air will be in place before the storm arrives. However, later in the day it’s looking more likely the snow switches to sleet and freezing rain late Thursday evening. This mix then becomes likely plain rain late Thursday night into Friday morning as temperatures rise above freezing.Stay with the WGAL News 8 Storm Team during the week ahead as both of these winter storms are very complex. A minor change in storm track or temperatures can mean the difference if you see rain, freezing rain, or snow, or sleet. We’ll keep you updated.You can find more forecasts on the WGAL Weather page, by downloading our app and sign-up for our newsletter.

WINTER STORM WATCH IN EFFECT FROM 4 PM MONDAY TO 1 AM TUESDAY FOR FRANKLIN, CUMBERLAND, PERRY, DAUPHIN, LEBANON COUNTIES

WINTER WEATHER ADVISORY IN EFFECT FOR ADAMS, YORK, LANCASTER, JUNIATA, MIFFLIN COUNTIES

Winter watches and warnings map of Central Pennsylvania.

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Winter watches and warnings map of Central Pennsylvania for 4 p.m. Monday through 1 p.m. Tuesday.

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Confidence and concerns are growing for a prolonged, strong winter storm that likely will bring long periods of freezing rain late Monday evening and Monday night to the Susquehanna Valley. At this time, most of the Susquehanna Valley is forecast to pick up enough freezing rain to create a glaze of ice to possibly a few tenths of an inch of ice.

Storm timeline for early Monday through Tuesday morning.

Hearst Owned

Storm timeline for early Monday through Tuesday morning. 

Sunday night:

Some light, patchy freezing drizzle is possible overnight which could lead to a glaze of ice on some roadways, bridges and overpasses.

Some areas northwest of Harrisburg could also see some light snow and sleet at times leading to a light coating to 1 inch up the US-322 corridor, closer towards State College. “Patchy” means some areas of the Susquehanna Valley will also stay dry.

Temperatures briefly fall to the upper 20s before rising to the lower 30s by sunrise. Because of the risk for some slick spots on roads, tonight is an impact time frame.

Monday:

A strong winter storm moves up the spine of the Appalachian Mountains through the day and arrives to the region Monday afternoon.

The storm is drawing in moisture from the Gulf of Mexico, meaning there is warmer air near the cloud level. It looks likely a scattered and light wintry mix will begin to move in from the southwest to the northeast between 1 and 5 p.m. Monday with temperatures in the lower to mid-30s.

There could be some minor travel issues for the evening rush hour. Conditions deteriorate after dark.

The heart of the storm then moves in after dark and intensifies across the region.

Confidence is growing we could see about a 12-hour period of steady freezing rain for most of the Valley from Monday evening to the pre-dawn hours Tuesday morning. Most of the Valley could pick up at least a tenth of an inch of ice accumulation from freezing rain.

Freezing rain impacts.

Hearst Owned

Freezing rain impacts. 

There is potential for areas along and near the I-81 corridor from Franklin County, through the Harrisburg metro, to Lebanon County where ice accumulations could reach a quarter of an inch or higher. This is enough ice to bring down large limbs, trees, and even power lines which could lead to power outages.

Potential travel impacts of the weather Monday through Tuesday.

Hearst Owned

Potential travel impacts of the weather Monday through Tuesday.

Travel impacts will be highest Monday night into the pre-dawn hours of Tuesday. Temperatures will hover around 32 degrees all night. If we drop closer to 30 degrees, more ice may accumulate. However, it we stay at or above freezing, impacts to travel will be lower.

Tuesday:

Temperatures start to rise above freezing between 4 and 8 a.m. which switches the freezing rain to just plain rain. However, the damage may be done and there could still be icy conditions for the Tuesday morning commute.

Snowfall predictor map for Tuesday at 10:30 a.m.

Hearst Owned

Snowfall predictor map for Tuesday at 10:30 a.m.

Freezing rain predictor map at 10 a.m. Tuesday.

Hearst Owned

Freezing rain predictor map at 10 a.m. Tuesday.

The rain should taper from southwest to northeast across the region, and all should be dry by 10 a.m. We may even see some peeks of sunshine later in the afternoon with highs in the upper 30s to 40 degrees.

Another complex storm Thursday:

This storm looks like it will start off as widespread snow Thursday morning since colder air will be in place before the storm arrives. However, later in the day it’s looking more likely the snow switches to sleet and freezing rain late Thursday evening. This mix then becomes likely plain rain late Thursday night into Friday morning as temperatures rise above freezing.

Stay with the WGAL News 8 Storm Team during the week ahead as both of these winter storms are very complex. A minor change in storm track or temperatures can mean the difference if you see rain, freezing rain, or snow, or sleet. We’ll keep you updated.

You can find more forecasts on the WGAL Weather page, by downloading our app and sign-up for our newsletter.

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