FloodZoneMap.org

Flood — Roanoke (c), VA

Sep 29, 2015

One of the most high-impact flood/flash flooding episodes in recent years in the Blacksburg Hydrologic Service Area (HSA) developed over a several day period but culminated September 29th. An unusual weather pattern became established around September 25th with very slow-moving and strong high pressure building across New England and low pressure over the southeastern U.S. combining to bring strong easterly flow into the southern Mid-Atlantic along with abundant moisture. Rainfall ending 12z on

Source: NOAA National Weather Service Storm Events Database (event 602077). Narrative written by NWS staff at the time of the event.

Flood Risk Context for Roanoke (c), VA

This event is one of many recorded floods in Roanoke (c) County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.

View Roanoke (c) County flood data →

More Flood Stories

Flood1 death

Roanoke (c), VA · Sep 17, 2018

Hurricane Florence made landfall on the far southeast North Carolina coast on September 14th and tracked very slowly across South Carolina before slowly re-curving across far western North Carolina and southwest Virginia as Tropical Depression and on into the Ohio Valley.

Read the full account →
Flood$15K damage

Roanoke (c), VA · Sep 19, 2024

A line of thunderstorms passed across the City of Roanoke between 7 pm and 8 pm EDT during the evening of the 19th. MRMS (Multi-Radar/Multi-Sensor System) data indicated rain falling at rates of between two and five inches per hour with these storms, with total accumulations…

Read the full account →
Flash Flood$25K damage

Roanoke (c), VA · Aug 19, 2021

Widely scattered thunderstorms developed in an environment of strong daytime heating on August 19th, allowing for deep instability as surface-based CAPE values were observed to be in the 1,500 to 2,500 J/Kg range during the evening for areas mostly along and east of the Blue…

Read the full account →
Flash Flood$25K damage

Roanoke (c), VA · Apr 13, 2020

A strong cold front extending from a complex surface low pressure system, brought intense thunderstorms which produced damaging winds and very heavy rain on April 12-13. The heavy rains resulted from a deep plume of tropical moisture lifted northward ahead of the cold front.

Read the full account →