National Weather Service United States Department of Commerce

Overview

From 1/5 to 1/6, a “Miller B” low pressure system tracked from KY/TN to northern NC, and eventually the secondary low deepened off the VA/NC coast. This was a relatively long duration winter weather event for the Wakefield CWA with three distinct phases.

Phase 1 (Late on 1/5): A cold and dry airmass was in place across the area on 1/5. Temperatures across central and SE VA were in the upper 30s to lower 40s with dew points in the single digits. However, there was a decent amount of isentropic ascent/warm air advection aloft from 850 to 500 mb. As a result, this first “phase” of the storm consisted of steady light to moderate snow that targeted areas from the I-64 corridor to south-central VA. With the very dry low-level airmass, temperatures quickly dropped to ~30F after the arrival of the precipitation. This allowed the snow to quickly accumulate and with rates of 1” or so per hour on average, areas from the Piedmont to Richmond Metro to even Prince George County/Williamsburg received 2-3.5” of snow in a 3 hour period before precipitation changed to sleet/freezing rain due to the WAA aloft. 1” of snow fell as far south as a Wakefield-Newport News line. This area of snow shifted to the north and weakened a bit before “Phase 2” of the storm begun.

Phase 2 (early morning-midday on 1/6): As the better mid-level forcing for ascent moved northward and a zone of 700mb frontogenesis overspread northern portions of the area, a second area of precipitation tracked across areas along and north of I-64, producing a variety of p-types. Across the central VA Piedmont where the warm nose aloft was strongest, precipitation fell in the form of freezing rain. At one point, ~50% of people were without power in Cumberland County due to the combined effects from snow and freezing rain (ice accretions up to 0.25” were observed). Farther north from Louisa County to the eastern shore, mainly snow was observed. A widespread 4 to 8 inches of snow fell from northern Louisa County to the MD Eastern Shore during the morning on 1/6. In between from Fluvanna County to Tappahannock, a mix of snow and sleet fell, with combined snow and sleet totals of 2 to 4 inches. Impressively, some areas reported sleet totals of 1.5-2” in just a few hours.

Phase 3 (Evening on 1/6): There was a break in the precipitation during the afternoon of 1/6. As the upper level feature tracked across the area (well to the west of surface low pressure deepening offshore), one final round of snow was observed from I-64 northward, producing 0.5-2” of snow as temperatures dropped back into the upper 20s.

Conclusions:  This was the most impactful winter weather event in the Wakefield CWA since January 2022. Storm total snow amounts of ~10 inches were observed in northern Dorchester County, with widespread 3 to 5 inch totals in the Richmond Metro (although snow depth in the Richmond area never got above 3” as precipitation turned to rain during phase 2).

nws logo Media use of NWS Web News Stories is encouraged!
Please acknowledge the NWS as the source of any news information accessed from this site.
nws logo