SCATTERED SHOWERS TONIGHT
VERY MILD TONIGHT -- WARM AND BREEZY WEDNESDAY
PERIODS OF RAIN WEDNESDAY AND WEDNESDAY NIGHT, POSSIBLY HEAVY
FLOOD WATCH FOR MUCH OF SOUTHWEST VIRGINIA THROUGH THURSDAY
BIG TEMPERATURE DROP WITH SOME SNOW THURSDAY
Tonight: Scattered showers likely. Very mild. Lows 40-48. Southwest wind 10 mph or less (gusty in the mountains).
Wednesday: Rain becoming more widespread. Warm and breezy. Highs 56-64. Southwest winds 5-20 mph.
Wednesday Night: Rain mixing with sleet/freezing rain late. Lows in the 30s. Northwest wind 5-15 mph.
Thursday: Sleet/freezing rain changing over to snow/sleet in the morning. Very cold and breezy. Highs in the mid 20s to mid 30s. North wind 5-15 mph.
We are tracking a departing area of high pressure that will bring winds from the south and southwest starting tonight and tomorrow. As we go through the night, expect these southerly winds to channel in warmer air and moisture along a cold front that is slowly approaching from the northwest. Scattered, light rain showers are likely tonight, as ample moisture in the atmosphere keeps our low temperatures in the mid 40s to near 50 degrees.
As a slow moving cold front moves towards the area, the air flow will run parallel to it especially on Wednesday. Rain could become heavy at times, especially near the KY/VA line. I wouldn't be surprised if we see a few renegade thundershowers Wednesday. Breezy conditions will ensue as well.
With heavy rain in the forecast, we will need to be alert for the dangers of rising water on streams/rivers this week. Snow pack is melting and the ground is saturated. This is something worth keeping an eye on as rainfall totals by mid-week could exceed one inch. A Flood Watch is in effect for southeast Kentucky and southwest Virginia for this evening through Thursday.
Behind this passing cold front, we are keeping our eyes on a storm system that will begin intensifying on the leeward side of the Rocky Mountains. A very pronounced jet stream, cold air and this storm system will bring wintry weather back into the region.
Late Wednesday and early Thursday, colder air rushes into the Tri-Cities. Temperatures will drop very quickly! Some models are bringing in warmer air aloft in the Tri-Cities and areas eastward. Rain will change over to freezing rain and sleet from west to east early Thursday morning, likely before morning commute time. This will then change to snow along the KY-VA line first before changing to snow and sleet in the Tri-Cities and areas pointing eastward. Some accumulation appears likely at this point, especially near the KY/VA line. Lift along the higher terrain will result in more accumulations. Accumulations of up to 2" are possible in the Tri-Cities and around 1" to 4" near the KY/VA line (more possible in higher elevations that change to snow more quickly). Check back for updates on this possible winter storm.
A Winter Storm Watch is in effect for all of southeast Kentucky, northeast Tennessee, along with Lee, Russell, Scott, Washington, and Wise Counties in Virginia.
High pressure fills back in Friday through early next week. As a result, the air will descend and the weather will be less active. We'll see lots of sunshine as we wrap up the first week of March and head into the second week! Temperatures will slowly make their way up again during this time.
Highs in the 60s Wednesday...30s Thursday and 40s Friday and near 50 this weekend. Low to mid 50s through early next week. Lows near 50 tonight, 30s Wednesday night, 10s Thursday and Friday night, and near 30 Saturday and Sunday nights.
We "Spring Forward" one hour Saturday night!
Our average high is 55°, low 31°.
Meteorologists Dave Dierks and Chris Michaels