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Weather Authority Alert Day issued for Sunday, Dec. 10, Monday, Dec. 11

Sunday Afternoon Update

Areas near Danville may be at risk for tornadoes after 1:30-2 p.m. today. There has been a tornado warning in North Carolina. No warnings are currently in effect.

Sunday Morning Update

A Weather Authority Alert Day is up for all of Sunday and extends until 12 p.m. Monday.

A marginal risk rides along I-81 today.

A marginal risk rides along I-81 today.

A couple of heavy showers and thunderstorms have the potential to grow and impact the areas highlighted above in green this afternoon. There is a low, non-zero risk or seeing a tornado this afternoon as winds pick up. If any storms do go severe, Your Local Weather Authority will be tracking them out for you.

Sunday 4:00 PM - Widespread rain becomes lighter, heavy showers in Southside

Sunday 4:00 PM – Widespread rain becomes lighter, heavy showers in Southside

Widespread showers will persist through most of the day. By 4:00 PM, we start to see some deep pockets of heavy rainfall move through Southside, this is about the time the severe threat kicks in.

Sunday 7:00 PM -Cold air behind the rain allows for some snow showers to get going

Sunday 7:00 PM -Cold air behind the rain allows for some snow showers to get going

By 7:00 PM we are seeing big time rain close to Lynchburg and Southside. A couple of these storms could clip our eastern zones. On the other hand, snow showers start to move in for the western slopes.

Widespread rain allows for accumulation to happen

Widespread rain allows for accumulation to happen

Rainfall estimates could be as high as 1-2 inches for all counties today. Some spots will likely see even more than that as totals have the potential to be upwards of 3 inches.

Temperatures fall off quickly after sunset

Temperatures fall off quickly after sunset

Temperatures will be declining in the afternoon hours. Once the rain dies down and becomes lighter, cold air behind the cold front wastes no time moving in. This will allow for some of us to see flurries and light snow accumulation.

Monday 12:00 AM - Snow showers and flurries extend as far east as the parkway.

Monday 12:00 AM – Snow showers and flurries extend as far east as the parkway.

The overnight hours will allow for snow showers to get as far east as the Roanoke Valley and the parkway. The ground will still be wet and warm from showers earlier in the day, so snow accumulation that far east will be hard and is not expected at this time.

Limited areas see accumulation of snow through tomorrow morning

Limited areas see accumulation of snow through tomorrow morning

Areas highlighted in grey and yellow have the best chance of seeing flurries accumulate along the ground, or seeing a light dusting on vegetation. Totals could near 1-3 inches in some spots, especially along the mountains and high elevations.

There is also the potential for ice to stick on roadways in high elevations for the Monday morning commute. Above freezing temperatures return by noon for these areas.

Saturday Afternoon Update

The Weather Authority Alert Day has been extended through Monday, Dec. 11 at 12 p.m.

Saturday’s clouds precede rainfall through Sunday with some snow late Sunday into Monday morning.

See an update from Meteorologist Marshall Downing below.

Showers begin late on Saturday and continue through Sunday. Most rainfall rates are light through the morning.

Showers move in after midnight

Showers move in after midnight

Rain continues through the afternoon with some heavy rates and even rumbles of thunder. After 5:00 PM colder air starts making snow on our northern and western edges.

Snow begins around sunset

Snow begins around sunset

Showers continue in the east through midnight. Some snow falls closer to I-81, but warmer temperatures mean it’s hard for that snow to stick.

Rain totals are between one and two inches for most

Rain totals are between one and two inches for most

Only a little accumulation is left by Monday morning. We dry out in the afternoon, but with cold air and plenty of moisture on Monday morning some ice could create poor road conditions.

Only a little snow is leftover by Monday morning

Only a little snow is leftover by Monday morning

Rain totals across our region are high. Most of us get more than an inch of rain, but few locations get more than two inches.

Rain totals are between one and two inches for most

Rain totals are between one and two inches for most

Since so much rain comes in a short amount of time flooding is possible in some areas. The main flood risk stays well to our north in New England.

Areas that tend to flood easily could be overrun Sunday afternoon

Areas that tend to flood easily could be overrun Sunday afternoon

Snow builds up in the Highlands and NRV. An inch or more of snow can build on western slopes in the Highlands. Further south it’s harder for that much snow to stick at this point in the season.

Snow totals are highest in our western slopes

Snow totals are highest in our western slopes

There are not many winter weather alerts as of Saturday afternoon. A Winter Weather Advisory is in effect in Pocahontas County for snow accumulations of multiple inches around Snowshoe.

Most winter weather alerts are outside of our region

Most winter weather alerts are outside of our region

Saturday Morning Update

Light rain is expected to move through Southwest Virginia today. Rain totals near a tenth of an inch for those who see a shower or two.

Saturday Rain Totals

Saturday Rain Totals

The severe storm threat expands from the Mississippi Valley to the Tennessee Valley today. Parts of the NRV are included in this and could see a storm with heavy rain later on. Tomorrow, the threat pushes east and includes Southside. Similarly, the threat is the possibility of seeing a strong storm with heavy rain.

Storm Prediction Center Weekend Outlook

Storm Prediction Center Weekend Outlook

There is no doubt Sunday will be wet and feature plenty of rain. Rainfall estimates near 1-2 inches for all zones. A few spots could see upwards of that amount.

Roughly 1-2 inches of rain for everyone this weekend

Roughly 1-2 inches of rain for everyone this weekend

After the rain moves through, there is potential to see snow showers after sunset and through the overnight. Most of these will be light and will have a hard time sticking and accumulating on the ground because of the soaking rain and warmer temperatures that came before.

Cold air allows for some light snow showers to get going around sunset.

Cold air allows for some light snow showers to get going around sunset.

Winter weather impacts are limited across the NRV, Highlands, and Roanoke Valley. To stay up to date on all things weather, download our weather app.

Snow Accumulation Possible Across The Highlands and NRV, Flurries-Dusting Elsewhere

Snow Accumulation Possible Across The Highlands and NRV, Flurries-Dusting Elsewhere

Our next cold front brings showers late on Saturday that continue into heavy rain through Sunday with some snow possible Sunday night. We all could use rain to help our dry conditions, but high amounts come down in a relatively short amount of time.

This Weekend's Rainfall Amounts

This Weekend’s Rainfall Amounts

Showers begin after sunset on Saturday leading to widespread rainfall by Sunday morning. Showers are relatively light in the early hours of the day with some moderate rainfall rates along and south of US-460.

Rainfall is widespread by Sunday 7:00 AM

Rainfall is widespread by Sunday 7:00 AM

In the afternoon, rainfall rates pick up. While the heaviest rain stays closer to Richmond, both Southside and Lynchburg get some impressive accumulations in just a few hours.

While rain is consistent through the east some snow begins to fall in West Virginia as temperatures fall. It takes a few more hours for that snow to reach our western slopes.

Some heavy rain is possible for parts of Southside - Sunday 4:00 PM

Some heavy rain is possible for parts of Southside – Sunday 4:00 PM

By 10 p.m., temperatures are cold enough for snow in the Highlands and NRV. Most of the system is done by Monday morning.

Colder temperatures allow for some snow after sunset - Sunday 10:00 PM

Colder temperatures allow for some snow after sunset – Sunday 10:00 PM

Snow accumulations are generally light, and with most ground temperatures above freezing, it will be hard for it to stick around. Western slopes could see more than an inch of snow with less as you get closer to I-81.

Snow accumulations are low in most spots outside of the Highlands

Snow accumulations are low in most spots outside of the Highlands

Once the front passes, wind gusts pick up with some reaching 30 miles per hour. This follows a pattern we saw with other fronts this season. Winds ease off in the afternoon and are largely calm by Tuesday.

Gusts pick up behind the front for each zone

Gusts pick up behind the front for each zone

After the front moves through, we have calm weather through the middle of the week.

For updates on the multitude of changes in our weather, be sure to check back in with our free weather app.

Check out this article and video to see how much snow we can expect this winter.


Source: WSLS News 10

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