Latest Snowfall Forecast

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Peoria, Ill. (WMBD) – A late season winter storm is expected to impact Central Illinois Thursday night bringing a narrow band of heavy snow to parts of the region. The National Weather Service has issued a Winter Storm Warnings for Peoria, Woodford, Marshall, Fulton, Stark, Putnam, Bureau, Knox & Henry Counties and Winter Weather Advisories for Tazewell, McLean, Livingston and La Salle Counties through mid morning Friday

Forecast Summary

  • Several inches of snow possible north of a Macomb to Pontiac line
  • Hazardous travel likely Thursday night and Friday morning
  • Damage to trees and power lines possible

Rain will develop across Central Illinois this afternoon, changing over to snow between 6 pm and 10 pm for much of Central Illinois. The rain snow line is expected to set up from Macomb to Bartonville then from Bartonville to Chenoa. South of this line snow accumulations will be limited while several inches of snow are expected north of this line.

Snowfall Forecast

Despite the warm air and ground temperatures it appears the rate of snowfall will be high enough to exceed the rate of melting. It looks like widespread snow accumulations of 2-5 inches will occur north of a Macomb to Pontiac line with pockets of 5-9 inches across McDonough, Knox, Stark and Peoria Counties. In the Peoria area, snowfall accumulations will likely vary significantly from the south side of town to the north side of town due to the expected position of the rain/snow line. Areas like Bartonville and Pekin may only see a few inches of snow while northern parts of Peoria see closer to 5 or 6 inches. In Bloomington, much of falls tonight will likely be rain but could occasionally mix with and change to snow. This will keep accumulations closer to 1-3 inches with higher accumulations possible in Normal.

Storm Impacts

Even though pavement temperatures are relatively warm, it looks like the snow will fall heavy enough to offset the rate of melting Thursday night allowing roads to become slick. Our exclusive road temperature model shows pavement temperatures dropping below freezing late Thursday night north of a Macomb to Pontiac line where some of the heaviest snow is expected to fall. Even outside of this heavier band of snow bridges and over passes will likely become slick as those surfaces drop below freezing.

The snow will not only be heavy when it comes to snow rate, it will also be heavy in terms of weight. The storm is expected to bring 0.75″ to 1.00″ of moisture to the region with a snow ratio of 8:1 (8 inches of snow for every 1.00″ of liquid). Winds will also gust between 25 and 30 mph Thursday night and Friday morning. The combination of wet/heavy snow and gusty winds will likely lead to broken tree limbs and damaged power lines where the heaviest snow falls.

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Here are the top 5 April snowfalls for Peoria, Bloomington and Galesburg

1... 7.8 INCHES (APRIL 7-8, 1982)
2... 7.5 INCHES (APRIL 3-4, 1920)
3... 7.2 INCHES (APRIL 10-11, 1997)
4... 6.0 INCHES (APRIL 8, 1938)
5... 4.9 INCHES (APRIL 5, 1982)

1... 10.0 INCHES (APRIL 3-4, 1920)
2... 6.3 INCHES (APRIL 2, 1926)
3... 6.0 INCHES (APRIL 8-9, 1982)
4... 5.3 INCHES (APRIL 5-6, 1982)
5... 5.0 INCHES (APRIL 8, 1957)

1... 13.0 INCHES (APRIL 10-11, 1997)
2... 10.0 INCHES (APRIL 6-7, 1982)
3... 10.0 INCHES (APRIL 14-15, 1980)
4...  7.3 INCHES (APRIL 2-3, 1975)
5...  6.6 INCHES (APRIL 1-2, 1970)

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