An intrusion of Arctic air into the central and eastern United States has brought periods of record-setting cold to areas as far south as the Southern Plains. Along the boundary between cold and warm air, several impactful winter storms have crossed from the Southern Plains into the Mid-Atlantic over the recent two weeks. One of these storms, unofficially named “Uri” by the W ... Continue Reading »
CAT-i
CAT-i Bulletin: Mw 7.1 Fukushima Earthquake, Japan February 13
The Fukushima Mw 7.1 earthquake occurred at 23:07 local time (14:07 UTC), on Saturday February 13. The United States Geological Survey (USGS) reported the epicenter to be 96.6 km southeast of Sendai, Japan at a depth 49.9 km. The Japan Meteorological Agency (JMA) reported this event to be Mj 7.3, at a depth of 55 km. Multiple aftershocks occurred within less than an hour, and ... Continue Reading »
CAT-i Bulletin: Typhoon Vamco (Ulysses)
Typhoon Vamco made its first landfall on Patnanungan Island (Quezon Province, Philippines) around 10:30 PM local time on November 11 as a category-1 equivalent on the Saffir-Simpon scale. The typhoon then gained category-2 strength before crossing Quezon and then Luzon. The system caused extensive flood damage, with Metro Manila seeing its worst flooding in years. Disruption to ... Continue Reading »
CAT-i Bulletin: Super Typhoon Goni (Rolly)
Super Typhoon Goni made landfall on Bato (Catanduanes province, Philippines) around 4:50 AM local time on Sunday, November 1 as a Category 5-equivalent super typhoon. 1-Minute sustained winds prior to landfall were around 315 km/hr (195 mph). The storm made three additional landfalls while tracking north-west and passed south of the National Capital Region. Severe wind damage ... Continue Reading »
CAT-i Bulletin: Hurricane Zeta
Hurricane Zeta made landfall the evening of October 28 around 4PM CDT, near Cocodrie, LA. According to National Hurricane Center (NHC) advisories, maximum sustained winds at landfall were 110 mph, a strong category-2 on the Saffir-Simpson Scale. The hurricane produced extensive wind impacts with downed trees and powerlines and variable property damage. Seawater inundation due ... Continue Reading »
CAT-i Bulletin: Hurricane Delta
Hurricane Delta made landfall near Creole, Louisiana on October 9 as a category-2 hurricane, with maximum sustained winds of 100 mph. Delta moved ashore just east of where Hurricane Laura made landfall in September and impacts were amplified for those areas still recovering from Laura. Delta also brought a threat for heavy rainfall and flooding from Louisiana to the Carolinas. ... Continue Reading »
CAT-i Bulletin: Hurricane Sally
Hurricane Sally made landfall around 5:45 AM EDT on September 16 as a category-2 hurricane, with maximum sustained winds of 105 mph. The core of Sally moved ashore over Orange Beach, Alabama after gaining strength on its final approach to the coast. The slow forward motion of the storm together with its gain in intensity brought prolonged periods of heavy rainfall, storm surge ... Continue Reading »
CAT-i Bulletin: Typhoon Haishen
Typhoon Haishen made landfall near Ulsan, South Korea around 9 AM GMT+9 Monday, with 1-minute maximum sustained winds of around 155 km/hr (96 mph) prior to landfall, a category-2. About six hours before landfall, the storm brushed past Japan’s Kyushu Island. Haishen hit areas already affected by typhoon Maysak, and flood effects were further amplified by prior monsoon activity i ... Continue Reading »
CAT-i Bulletin: Hurricane Laura
Hurricane Laura made landfall around 1 AM CDT Thursday, August 27 as a high-end category-4 hurricane, with maximum sustained winds of 150 mph. The storm moved ashore near Cameron, Louisiana after a period of rapid intensification, tying for the fifth strongest landfalling continental US hurricane on record. Severe wind damage has been reported to property and infrastructure in ... Continue Reading »
CAT-i Report: Midwest Derecho Activity
Severe thunderstorm activity in recent days has rendered considerable impacts from the Northern Plains through the Lower Great Lakes and Southeast. In particular, a significant derecho affected areas from Iowa through the Mississippi Valley and Lower Great Lakes on August 10, with concentrated reports of damaging wind gusts in excess of 75 mph. The storms produced downed trees ... Continue Reading »
