... Rain chances are expected to return later today through Wednesday with crossing low pressure. Colder weather and snow shower chances are then expected for the end of the week.
NEAR TERM /THROUGH TONIGHT/...
Clouds will continue to increase throughout the day under warm, moist advection. A sfc low low ahead of a weak upper-level trough is expected to cross over the MS Valley region later today. Rain chances return later this evening and will continue overnight. Temperatures will stay 10 to 15 degrees above the climatological average due to prevailing SW flow.
SHORT TERM /TUESDAY THROUGH WEDNESDAY NIGHT/...
Rain should taper off through the morning on Tuesday as the shortwave support exits, though some patchy light rain will remain possible through the day.
A deepening Central CONUS trough is expected to track east Tuesday night and Wednesday as the sfc low crosses the Upper OH Valley/Lower Great Lakes region. Another period of rain is expected Wednesday as this trough, and its associated sfc cold front, cross the region.
The trough is progged to phase with a nrn stream trough Wednesday night as it deepens across the NE CONUS, with rain showers changing to snow showers behind the cold front. Above average temperatures are expected to return to seasonably cold levels by Wednesday night after FROPA.
LONG TERM /THURSDAY THROUGH SUNDAY/... Upper troughing is progged to persist across much of the Eastern CONUS through Saturday. Shortwaves rotating through the main trough, with lake/terrain enhancement, should maintain periodic snow shower chances through the first part of the weekend. A Central CONUS ridge should track east by Sunday, returning dry weather to the region. Colder than average temperatures are expected through the period.