page_title: Tropical Storm Isidore (1984)
section_title: Meteorological history
hierarchical_section_title: Tropical Storm Isidore (1984) / Meteorological history
caption_attribution_description: Saffir-Simpson Hurricane ScaleTDTS12345 English: Tropical Storm Isidore (1984) track. Uses the color scheme from the Saffir-Simpson Hurricane Scale.
context_page_description: Tropical Storm Isidore was the 15th tropical cyclone and 9th named storm of the 1984 Atlantic hurricane season. Isidore formed as a tropical depression on September 25, while situated off the southeastern Bahamas. The depression headed west, and was upgraded to a tropical storm in the central Bahamas the next day. It made landfall near Jupiter, Florida, and retaining tropical storm strength, Isidore curved to the northeast, emerging over water near Jacksonville, Florida. Isidore continued northeast until it was absorbed by a frontal system on October 1. Though damage was generally light, the storm affected several regions from the Bahamas to the U.S. East Coast. One death was reported in Florida, and total damage is estimated at $1 million.
context_section_description: The storm system that would become Isidore originated in a nearly stationary frontal boundary situated near the Bahamas. On September 24, a ship reported winds of about 30 mph (48 km/h) in association with the disturbance. However, satellite imagery indicated that convection was just beginning to organize. Satellite imagery and Air Force reconnaissance reports documented the formation of a tropical depression early on September 25; a special statement was later issued by the National Hurricane Center (NHC) confirming the existence of the depression, and tropical cyclone advisories were initiated at 12 pm EDT. The depression moved west-northwest while tracking through the Bahamas. As it did so, it moved across Cat Island and passed near several others. The cyclone attained tropical storm status on September 26, receiving the name "Isidore".
  While located near the northern tip of Andros Island, Isidore reached its peak intensity. The barometric pressure fell to 999 mb, with sustained winds of 60 mph (95 km/h). The storm continued moving northwest, though it failed to strengthen significantly over the Florida Current. The cyclone made landfall near Jupiter, Florida with sustained winds of about 50 mph (80 km/h) and subsequently moved inland. Previously, a large high pressure area over the eastern United States had prevented the cyclone from moving northward. The high moved away, allowing for Isidore to curve to the northeast, emerging over water near Jacksonville, Florida. The storm continued towards the northeast, passing about 80 mi (130 km) off of the Carolina coast. Isidore downgraded to a tropical depression on October 1, and was absorbed in a frontal zone later that day. Isidore was one of many storms during the 1984 season that formed in relatively cool baroclinic environments.
caption: Map plotting the track and the intensity of the storm, according to the Saffir–Simpson scale
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