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Published on December 13, 2024
Lake Effect Snow Warning Expires, Calm Before the Storm in Northeast Ohio and Northwest PennsylvaniaSource: Erik Drost, CC BY 2.0, via Wikimedia Commons

The National Weather Service in Cleveland has reported that the Lake Effect Snow Warning and Winter Weather Advisory have expired for the Northeast Ohio/Northwest Pennsylvania region as of 7 AM today. According to the NWS forecast, lake effect snow showers have rapidly diminished, although slippery surfaces may linger and impact the morning commute. Motorists are advised to proceed cautiously on the roads, especially on untreated surfaces.

After a period of wintry conditions, a high-pressure system is slated to bring calmer weather to the region, with the Weather Service noting that "dry weather will continue through the remainder of the near term period." However, this brief respite is set to conclude as a warm front approaches from the southwest on Saturday, heralding a significant chance for additional precipitation late Saturday through Sunday. As the NWS forecasts, multiple disturbances are expected to make their way across the local area during this time, bringing with them not only wet but also warmer conditions.

Rain is anticipated to be the main form of precipitation Saturday night through Sunday night, with the potential for a wintry mix, including freezing rain in parts of Northeast Ohio and Northwest Pennsylvania initially. "When all is said and done, an additional couple of inches of snow are possible in the Winter Weather Advisory/Lake Effect Snow Warning areas with locally higher amounts possible where heavier snowfall rates persist," the NWS discussed. Residents in these areas should remain alert to additional advisories as forecast updates become available.

A warming trend is expected to begin on Saturday, with temperatures climbing from mid to upper 30s to lower 40s. Despite the gradual temperature rise, there are concerns that precipitation might initially begin as a mix of wet snow and freezing rain before transitioning fully to rain, especially in interior regions. "It will take some time for precip to reach the surface via the wet-bulb effect given the expectation of a dry antecedent low-level atmospheric column," the NWS mentioned, highlighting the complexity of forecasting such transitional weather events.

Looking ahead, the anticipates that after the warm front passage on Monday, a cold front will follow, potentially leading to "periods of rain, moderate to heavy at times," with temperatures peaking in the upper 40s to mid-50s ahead of the cold front, according to the NWS forecast. The maritime forecast also suggests a need for a Small Craft Advisory, with winds expected to pick up substantially, creating waves of up to 5 to 10 feet in Lake Erie's central and eastern basins. Mariners in the region are encouraged to monitor the latest marine forecasts for further updates and advisories.