Flood & Thunderstorm Risk – Shenandoah Valley
Heads up, Grottoes!
We’ve received updated weather risk information from Dominion Energy, and it’s important to stay alert this weekend.
FOur entire region is under an elevated flash flood risk this afternoon and evening, with the Shenandoah Valley at the highest risk (Level 3 of 4). A stalled front is funneling in moisture, setting the stage for heavy downpours of 1–2 inches per hour, with some spots possibly seeing 3–4 inches/hour.
Localized rainfall totals of 4–7 inches are possible
There’s a 40% chance of a 100-year rainfall event in our area
Flooding is likely where storms train or repeat over the same area.
Thunderstorm Threat:
Isolated storms could begin around 2:00 PM, expanding into the evening.
Highest concern: 4:00 PM – 9:00 PM
15% chance of strong storm impacts including:
Frequent lightning 
Isolated 55–65 mph wind gusts 
Storms may return Saturday afternoon and evening with similar timing and risks, including a continued flash flood threat and strong wind gusts.
Sunday’s storms look more isolated, mainly near and south of I-64 in the early evening.
Some drier days are expected next week — but stay weather-aware until then!
Have multiple ways to receive warnings and never drive through flooded roads.
Information provided by Dominion Energy. Town of Grottoes is sharing so we can try keeping our residents informed.