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The 1944 Atlantic hurricane season featured the first instance of upper-tropospheric observations from radiosonde – a telemetry device used to record weather data in the atmosphere – being incorporated into tropical cyclone track forecasting for a fully developed hurricane. The season officially began on June 15, 1944, and ended on November 15, 1944. These dates describe the period of each year when most tropical cyclones form in the Atlantic basin. The season's first cyclone developed on July 13, while the final system became an extratropical cyclone by November 13. The season was fairly active season, with 14 tropical storms, 8 hurricanes, and 3 major hurricanes. which struck Long Island and New England and later Atlantic Canada after becoming extratropical, causing about $100 million (1944 USD) in damage across the East Coast of the United States and Atlantic Canada, as well as at least 391 deaths, most of which occurred at sea. The Jamaica hurricane and Cuba–Florida hurricane were also powerful and left major impacts. The former inflicted "several millions of dollars" in damage in Jamaica, while 116 deaths were recorded throughout its path. The Cuba–Florida hurricane devastated both regions, resulting in at least 318 fatalities and damage exceeding $100 million. A hurricane which struck Mexico in late September caused between 200 and 300 deaths in the Isthmus of Tehuantepec due to flooding. Collectively, the tropical cyclones during the 1944 season caused about $202 million in damage and at least 1,025 fatalities.
Seasonal summary
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thumb|right|Rainfall from the [[1944 Great Atlantic hurricane|Great Atlantic hurricane in the United States]]
The Atlantic hurricane season officially began on June 15 and ended on November 15. A total of 21 tropical cyclones developed. Fourteen of those cyclone intensified into tropical storms, the most since 1936, while eight of those reached hurricane status, the highest number since 1933. Three of those hurricanes intensified into major hurricanes. The season included the first instance of upper-atmosphere data via radiosonde being successfully incorporated into tropical cyclone track forecasting for a fully developed hurricane, which occurred as the Cuba–Florida hurricane approached Cuba. it organized into the season's first tropical depression two days later around 06:00 UTC while situated near Navidad Bank in the Turks and Caicos Islands. Upon designation, the Weather Bureau planned reconnaissance flights for the first time ever to fly into a newly formed cyclone. The cyclone then continued on a west-northwest course through the Caribbean Sea. Though it was initially believed the storm struck Haiti, where considerable damage was reported along the coastline near Port-au-Prince, and ultimately deteriorated, modern reanalysis suggests the cyclone continued south of the island. The system was then intercepted by strong wind shear that led to its dissipation west-southwest of Jamaica by 18:00 UTC on July 27. Its remnants continued westward and were last reported north of Honduras the following day.
Hurricane Three
A tropical wave organized into a tropical storm about east of Cockburn Town in the Turks and Caicos Islands around 12:00 UTC on July 30. Damage reached $2 million. As the cyclone exited into the Atlantic, it produced a gust of in Atlantic City, New Jersey. Though no fatalities occurred along the storm's path due to mass evacuations,
Tropical Storm Six
On September 8, a weak area of low pressure developed along the tail-end of a stationary front across the northern Gulf of Mexico. which is Category 4 intensity. However, the sustained wind speed was recorded at a 30-second duration, rather than 1-minute, while the anemometer height was about above ground. Instead, the state likely experienced sustained winds up to Category 2 intensity.
Hurricane Eight
A tropical wave led to the formation of another tropical storm over the northwestern Caribbean Sea around 06:00 UTC on September 19. Floods also wrought extensive damage to the communication and transportation systems.
Hurricane Twelve
On the second week of October, a broad area of low pressure began to take shape along a frontal boundary across the northeastern Atlantic. The system steadily acquired tropical characteristics, Squally conditions battered the Cayman Islands for three days, destroying every crop on the islands; the of rain recorded on Grand Cayman was the highest in the island's history. At least 300 people were killed in Cuba, though the full extent of casualties remains unknown as reports from rural areas of the island were never compiled. A weather station in Havana documented a wind gust, which stood as the strongest gust measured in the country until Hurricane Gustav in 2008. Crops suffered extensively, exacerbated by the hurricane's timing near optimal harvest time. Total damage in the state amounted to $63 million, causing widespread power outages. Overall, the hurricane caused more than $100 million in damage and at least 318 fatalities.