FloodZoneMap.org

Flash Flood — Hillsborough, NH

Aug 4, 2024

An upper level disturbance brought multiply rounds of showers and thunderstorms on August 4th, as amble low level moisture and instability was in place over New Hampshire. Most storms were strong with heavy downpours and gusty winds, with scattered storms causing wind damage along with an isolated area of flash flooding. Slow-moving showers and storms produced flash flooding across portions of southern New Hampshire. Heavy rainfall rates over 2-3��� per hour resulted in local accumulation

Source: NOAA National Weather Service Storm Events Database (event 1201105). Narrative written by NWS staff at the time of the event.

Flood Risk Context for Hillsborough, NH

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

View Hillsborough County flood data →

More Flood Stories

Flash Flood$1.0M damage

Hillsborough, NH · Jul 18, 2021

During the evening of July 17th an area of low pressure slowly moved east along a stationary boundary that stretched from New York to Massachusetts.

Read the full account →
Flash Flood$25K damage

Hillsborough, NH · Jul 18, 2021

During the evening of July 17th an area of low pressure slowly moved east along a stationary boundary that stretched from New York to Massachusetts.

Read the full account →
Flash Flood$25K damage

Hillsborough, NH · Jul 29, 2021

A developing area of lower pressure crossed the state on the night of July 29th. Abundant moisture moved into the region ahead of this area of low pressure. Rain began by late afternoon on July 29th across the Connecticut River Valley.

Read the full account →
Flash Flood$15K damage

Hillsborough, NH · Jul 29, 2021

A developing area of lower pressure crossed the state on the night of July 29th. Abundant moisture moved into the region ahead of this area of low pressure. Rain began by late afternoon on July 29th across the Connecticut River Valley.

Read the full account →