Wednesday February 7 2018 2:45 PM
Most of our region is in the thaw this afternoon. Now we set the stage for areas of fog, then watch for the refreeze. It’s a theme with recent storms could to repeat tonight. The rain has been moderately heavy and beneficial to the recent declaration of drought. One thing that proved true again is that cold air tends to hang on longer and that led to more icing this morning. This storm has a lot of energy and a wide range of temperature. Not far to the south, Norfolk Virginia has reached the middle 60s. Meanwhile to our north heavy snow continues to fall with places in northern PA and New England expecting up to a foot of snow.
There are a few important things to keep in mind today and this evening with the back half of this storm:
- Fog: Warmer moist air flowing over soggy and ice covered ground quickly super saturates the water vapor and we end up with areas of patchy thick fog. That helps keep the ground wet.
- When will the rain end? The latest radar simulation below shows one last push of upper level energy to keep showers around until 8 or 9 PM in metro areas.
- When will the freezing line return? The later rain, some fog, and soggy ground is likely to keep the ground wet as the deep freeze returns. Some area will have that 32ºF line arrive within 2 hours of the rain ending this evening.
- Expect Icing Overnight And Possible School Delays Thursday Morning – I do not like to make promises about school decisions, but this seems like a good bet on unsafe conditions. See the temperate timeline below.
2 PM Temperatures
We split the difference with the snow to our north and 60s to the south, but just barely into the warmer or non freezing air. Here is a closer look.
Also see: What is Winter Precipitation: Snow, Sleet, and Freezing Rain
Rain Timeline: Radar Simulation
The freezing line will return within 2 hours of the rain ending in the same areas that had ice until noon today. Typical northwestern cold zones.
Midnight- Freezing In The Cities
This includes east of I-95 and near the Bay in Anne Arundel County and up through Aberdeen and Northeast in Cecil Co.
Morning Deep Free *Likely Icy Roads
The colder zones will be in the teens and the 20s will reach across Delmarva! Icing could be widespread for places that are not treated with salt.
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