A warm front lifted into the vicinity of West Virginia on the night of May 29th and remained present overhead until being ushered east by a low the evening of the 30th. Behind this system, a cold front approached from the north and slowly descended southward through the area on the 31st.
Rounds of rain and storms moved across the area on the 30th, with several severe thunderstorms downing power lines and numerous trees during the afternoon. While the majority of precipitation tapered off by the morning of the 31st, a few additional showers sprouted up in parts of southeastern West Virginia during the afternoon.
The bulk of the area received less than an inch of rain, though some parts of northern, southwest and southeast West Virginia accrued up to around 2 inches. Soils had become increasingly saturated during subsequent rounds of rain and storms earlier in the month; thus, even somewhat lesser rainfall amounts were enough to cause flooding across portions of Doddridge, Harrison, Mason, Tyler, and Wood Counties.