From the ARRL Letter, September 16, 2021:
Amateur radio volunteers on the Voice over Internet Protocol Weather Network (VoIPWX), joined linked systems in Newfoundland, Canada, to collect ground-truth weather data for relay to the National Hurricane Center (NHC) and Environment Canada, as Hurricane Larry hammered the Canadian province on September 11. The Category 1 storm, with maximum sustained winds of 85 MPH, was predicted to bring hurricane-force winds, dangerous storm surge, heavy seas, and heavy rainfall.
Scores of reports, including damage to schools and homes, power outages, and evacuations, were sent by a squad of hams that included Aaron Abbott, VO1IV, and Gareth Rowberry, VE3GJR.
More than 40 personnel hours of operation by Canadian and US radio amateurs were involved in providing the reports received on both systems.
Rob Macedo, KD1CY, Director of Operations for the VoIP Hurricane Net, said, “Through the exemplary efforts of VO1IV…and a number of amateur radio operators across Newfoundland and one amateur operator in Ontario who relayed a report from a non-amateur radio CANWARN Spotter [a volunteer organization of ham radio operators reporting severe weather to Environment Canada] in St. John’s, Newfoundland, reports of damage to trees, power lines, power outages (including roof damage to a school and a home) were relayed from amateurs in the region.”
The Hurricane Watch Net (HWN) activated on September 10 on 20 and 40 meters.