23 Aug 2021 | 11:20 PM UTC
US: Remnants of Henri are moving over southern New York State Aug. 23
Remnants of Henri are moving east-northeast over southern New York State, US, late afternoon Aug. 23. Disruptions ongoing.
Event
Remnants of Tropical Storm Henri are moving slowly east-northeast over southern New York State Aug. 23. As of 17:00 EDT, the storm's center of circulation was approximately 80 km (50 miles) west-southwest of Hartford, Connecticut, and about 95 km (60 miles) north-northeast of New York, New York. Forecast models indicate the system will continue to move east-northeast transiting southern New England and moving into the Atlantic Ocean by the afternoon of Aug. 24.
Government Advisories
As of 17:00 EDT, the US National Hurricane Center (NHC) had discontinued all coastal tropical storm warnings affiliated with this system.
Hazardous Conditions
The storm will continue to bring heavy rainfall and gusty winds to affected areas. Sustained heavy rainfall could trigger flooding in low-lying communities and urban areas with easily overwhelmed stormwater drainage systems. Torrential precipitation could trigger flash floods and mudslides.
Sites located downstream of large reservoirs could experience flash flooding after relatively short periods of intense rainfall. Forecast models indicate the system will likely bring an additional 2.5-7.5 cm (1-3 inches) of rainfall to parts of Long Island, New England, southeast New York, New Jersey, and eastern Pennsylvania through Aug. 23. Torrential precipitation could trigger flash floods and mudslides; however, the risk of flooding is likely to diminish by early Aug. 24.
In addition to heavy rain and likely flooding affecting southern New England and the northern Mid-Atlantic region through at least Aug. 23, the storm could produce damaging wind gusts, resulting in continued widespread power outages due to fallen trees and toppled utility lines. Around 37,000 customers in the Northeast region remained without power as of Aug. 23, down from a peak of 100,000, with power being gradually restored.
Transport
Business, transport, and utility disruptions will likely continue in the affected area over the coming days. Areal flooding in urban locations could also result in severe traffic congestion. Major airports have resumed operations but residual delays are likely until the system has fully left the area.
Disruptions triggered by inclement weather and resultant hazards, such as flooding, could persist well after weather conditions have improved. If there is severe damage to infrastructure, repair or reconstruction efforts may exacerbate residual disruptions.
Advice
Heed the instructions of local authorities. Use extreme caution in low-lying coastal areas and near streams, creeks, and other waterways due to the high potential for severe flooding. Charge battery-powered devices when electricity is available; restrict the use of cellular phones to emergencies only. Power down mobile devices when not in use. Take precautions against insect- and waterborne diseases in the coming weeks.
