1/25-26 First Call Snowfall Forecast From the JV Team
Hopefully the map is pretty self-explanatory. That thick blue line is the dividing line between all snow and mixing. Tonight this forecast will be refined. This will likely be the most impactful winter storm in the DMV region since 2016, even though mixing with sleet and freezing rain will occur. Temperatures will be cold throughout the storm and will struggle to reach 25. Snowfall ratios at the beginning of the storm will likely be around 16:1 and will slowly decrease to around 9:1, before mixing, where freezing rain and sleet will make conditions all the more dangerous. Snowfall rates during the heaviest returns will be upwards of 1-2" per hour, occasionally reaching 3" in isolated areas (which are currently unknown as we are too far out for CAMs to realistically hone in on those areas) where h7 FGEN goes crazy (credit to @MillvilleWx). After the storm, temperatures will remain frigid, and it's unlikely that high temperatures reach above freezing until February. Your snow/sleet/ice will turn into glacier. Prepare now. Make sure to get all your essential needs, like food, water, and a source of heat if your power goes out due to the ice.