Monday Evening Update
The Weather Authority Alert Day issued for Monday, August 14 has been lifted.
Monday Afternoon Update
Prior rain and storms Monday morning and early afternoon have cut into the severe weather threat for the afternoon.
Another wave of storms will be possible between 10 p.m. and 2 a.m. This will mostly be north of the Roanoke Valley. A couple of stronger thunderstorms may develop out of that before fizzling out.
Chief Meteorologist Jeff Haniewich has an update in the video below.
Download our app and turn alerts on in case of any warnings in your area.
Monday Morning Update
A Weather Authority Alert Day is in effect from noon to midnight on Monday, August 14th. Our next strong cold front comes through driving showers and storms throughout the afternoon. Those storms have the potential to turn severe in each of our zones, but as of this morning, the front is not as intense as last week’s.
Monday will be humid and at points it could feel tropical. The moisture from high dew point temperatures will serve as fuel for today’s round of showers and storms.
Sunday Evening Update
The morning starts on the calm side with showers and some downpours. It takes until noon for the storms to fire up with the worst weather between 5:00 PM and 8:00 PM.
By noon the first major waves of showers move in. Isolated downpours are the most common feature of the early afternoon.
By 5:00 PM a more organized line of storms stretching from northeast to southwest develops and moves through. Severe storms form on the leading edge of this line with rain that lingers behind it for around an hour.
The weather stays calmer after 8:00 PM, but pop-up showers and even some storms can develop through the night into Tuesday morning. After the sun rises on Tuesday the severe chances are limited.
Damaging wind gusts are the strongest threat on Monday. Bring anything indoors that is liable to blow away, and be prepared for high wind gusts to break branches and cause power outages. Have a flashlight and battery ready before the storms arrive.
Hail has a chance to form, but the lower temperatures thanks to cloud cover early in the day holds the available energy down. That lower heat also keeps the tornado chance on the low side.
Rain totals are less than a quarter-inch for most of us. The systems that come through often move quickly preventing large rain totals from growing.
The wind threat is the most noticeable, but the flood and tornado risk can’t be ruled out. Isolated downpours can cause flooding on a local scale, and if enough energy builds north of US-460 some tornadoes could spin up.
The Level 2 risk extends well to our west and east. Storms have a hard time making it over the mountains into the Highlands and Roanoke zones, but the placement of this front includes them in the storm risk.
The rest of the week stays on the calm side after this front comes through. Temperatures cool a few degrees with light shower chances.