A complex winter weather system is set to impact portions of central and northern Delmarva, bringing a mix of snow, sleet, and freezing rain as temperatures hover near the freezing mark towards early Saturday afternoon. This system will create hazardous travel conditions, especially in areas where freezing rain leads to ice accretion.
Weather Setup and Model Guidance
Latest guidance from the ICON, GFS, and ECMWF suggests that cold air at the surface will remain entrenched across northern Delmarva, allowing for a prolonged period of wintry precipitation before a gradual changeover to rain. Meanwhile, high-resolution CAMS guidance, including the HRW-WRF & NAM12KM, continues to highlight higher localized areas of ice accumulation, particularly in northern regions where cold air remains stubborn.
As the system moves through, precipitation is expected to start as a wintry mix of snow, sleet, and freezing rain across northern and central Delmarva, with surface temperatures struggling to rise above 32°F. By early afternoon, warmer air aloft will cause much of central Delmarva to transition to plain rain, while northern Delmarva may see continued ice accretion before the system exits early Sunday.
Potential Ice Accretion and Travel Hazards
- Ice Accumulation: Up to 0.10” of ice is possible across northern & central Delmarva, with localized higher amounts in areas where freezing rain persists.
- Travel Impacts: Slick roadways and hazardous conditions are expected, particularly on bridges and overpasses. Untreated surfaces may become icy and dangerous.
- Timing: The wintry mix will continue through early afternoon, with a gradual transition to rain in central Delmarva through the evening hours. Northern areas may hold onto freezing rain longer before precipitation moves out early Sunday morning.
Stay Weather Aware
Residents across central and northern Delmarva should stay updated with the latest forecasts, as even small changes in temperature could impact precipitation type and ice accumulation. If traveling, exercise caution and allow extra time, especially in areas where freezing rain may linger.