Tropical Storm — Coastal Rockingham, New Hampshire

2020-08-04 to 2020-08-05 · Coastal Rockingham, New Hampshire

Event narrative

Tropical Storm Isaias brought moderate impacts to Rockingham County with scattered reports of trees and branches down leading to scattered power outages. Storm surge remained around 1 foot but hit at low tide with no coastal flooding reported.

Wider weather episode

Tropical Storm Isaias was the first tropical storm to impact New Hampshire since 2011. The center of the storm tracked west of the state, keeping the flooding rain associated with the storm across New York. The primary impacts the storm brought to New Hampshire were gusty winds with widespread reports of wind gusts in the mid to upper 40s. Numerous trees and branches were brought down with scattered power outages across the state. An area of enhanced damage was concentrated in Carroll County as a squall line pushed through the region. Concentrated tree damage toppled 100s of trees with one fatality being reported as a large crashed into the home. Overall storm impacts were brief with a period of gusty winds from the south to southeast on the evening of August 4th causing most of the damage. There was no coastal flooding reported as the relatively minor storm surge of around a foot coincided at the time of low tide on the New Hampshire coast.

Source: NOAA Storm Events Database, event_id 918371. Narrative written by the NWS forecast office that issued the report.