On Sept. 4, 2023, a low-pressure system developed over southeastern Europe that would lead to devastating floods over Greece and other parts of the region. The system was given the name “Daniel” by local meteorological agencies. Daniel was dynamically driven by strong cyclonic flow in the upper-level winds over southeastern Europe. The upper-levels winds combined with low-level winds from the northeast which supplied moisture from the unusually warm waters of the Aegean and Black Seas to central Greece. According to satellite infrared and microwave estimates from NASA's MUR and NOAA’s OISST v2

After threatening much of Florida’s western coast, Hurricane Idalia made landfall Wednesday morning in the Big Bend region of Florida’s northwest coast near Keaton Beach at 7:45 a.m. EDT, Aug. 30, as a strong Category 3 storm with sustained winds reported at 125 mph by the National Hurricane Center. Idalia’s formation was somewhat unusual. Typically, when entering the heart of the hurricane season tropical storms and hurricanes form and expand eastward across the tropical Atlantic region towards Africa’s coast. However, storms occasionally still form in the western Caribbean, as was the case

After becoming a tropical storm in the east-central Caribbean on the afternoon of Aug. 20 and moving generally westward for two days, Tropical Storm Franklin took a northward track and struck the southern coast of the Dominican Republic south of Barahona on the morning of Aug. 23 as a moderate tropical storm with sustained winds reported at 50 mph by the National Hurricane Center (NHC). Franklin brought heavy rains and flooding to the area, resulting in landslides, power outages and at least 2 fatalities in the Dominican Republic according to media reports . After traversing the mountainous

Hurricane Hilary is being hailed as a historic storm after becoming the first tropical storm to hit California since Sept. 24, 1939. The storm has had a large impact on the region - in addition to gusty winds, Hilary’s rains have resulted in widespread flooding, landslides, washed out roads and numerous other closures. Like most East Pacific tropical cyclones, Hilary originated from a westward propagating tropical wave that crossed over Central America from the western Caribbean into the eastern Pacific. Known as “African easterly waves”, these are the same waves that emerge off the coast of

The Northwest Pacific typhoon season has been quite active recently. Following in the wake of Super Typhoon Doksuri, which skirted the northern tip of Luzon July 25 and 26 and continued on to bring extreme rainfall to southeast coast of China, is yet another powerful storm - Typhoon Khanun. Khanun (known as “Falcon” in the Philippines) began in the West Pacific Ocean as an area of disturbed weather on July 24 situated well south of Guam and east of Palau. Over the next several days the system slowly intensified as it tracked northwestward towards the Ryuku Islands of southern Japan, becoming a

After a quiet start, the 2023 eastern Pacific hurricane season recently picked up in activity with the formation of the season’s first major hurricane, Hurricane Calvin. Calvin originated on July 11 from an area of low pressure located about 510 miles (~820 km) south-southwest of Manzanillo, Mexico, which had become organized enough for the National Hurricane Center (NHC) to declare it Tropical Depression 3E (TD 3E) that afternoon. Located over warm sea surface temperatures (SSTs) of around 84 oF (29 oC), thunderstorm activity near the center of TD 3E continued to increase overnight, and