Evening Model Update on Friday’s Situation
WSI’s RPM model was one of the first of the shorter-range, higher-resolution models to lock on to last week’s wintry weather, and this week, it is doing something similar. We decided based on the look of several global models (ECMWF and GEMS in particular) that the RPM was likely performing well with respect to this event. With that in mind, here’s what it is painting for 6:30 AM Friday:
This is a brief period of some light freezing rain or freezing drizzle moving across North Alabama and Southern Middle Tennessee. Temperatures in this time frame are forecast to be around 31º to 34º F, and that could mean some patchy trouble spots on Friday morning; however, it will not be a day-long shut-down event. This will, at the worst, be a minor inconvenience for some mainly in the southern Tennessee Counties of Lawrence, Giles, Lincoln, Moore, Franklin, Grundy, Bedford, and Marion as well as some of the higher terrain of Madison and Jackson Counties of northeastern Alabama.
Even if temperatures are below 32º F on a wider scale than expected, the light nature of the precipitation means less than a tenth of an inch of precipitation for most of North Alabama and Southern Tennessee. That will melt away quickly as temperatures rise above freezing.
Afternoon temperatures will warm into the lower 40s on Friday afternoon, but it will stay cold through Saturday!