its southwest: Davie On its west: Plantation Lauderhill Lauderdale Lakes On its northwest: North Lauderdale Oakland Park Tamarac On its north: Wilton Manors Pompano Beach The northwestern section of Fort Lauderdale is separate from the remainder of the city, connected only by the Cypress Creek Canal as it flows under I-95. This section of Fort Lauderdale borders the cities of Tamarac and Oakland Park on its south side. Oakland Park also borders Fort Lauderdale on the west side of its northeastern portion. The greater portion of Fort Lauderdale in the south is bordered, along its north side by Wilton Manors. Off the coast of Fort Lauderdale is the Osborne Reef, an artificial reef made of discarded tires that has proven to be an ecological disaster. The dumping began in the 1960s, with the intent of providing habitat for fish, while disposing of trash from the land. However, in the rugged and corrosive environment of the ocean, nylon straps used to secure the tires wore out, cables rusted, and tires broke free. The tires posed a particular threat after breaking free from their restraints. The tires then migrated shoreward, and ran into a living reef tract, washed up on its slope, and killed many things in their path. In recent years, thousands of tires have also washed up on nearby beaches, especially during hurricanes. Local authorities are now working to remove the 700,000 tires, in cooperation with the U.S. Army, Navy, and Coast Guard. Neighborhoods Fort Lauderdale has a program for designating and recognizing neighborhoods. Under the Neighborhood Organization Recognition Program, more than 60 distinct neighborhoods have received official recognition from the city. An additional 25–30 neighborhoods exist without official recognition, although the city's neighborhood map displays them as well. Climate According to the Köppen climate classification, Fort Lauderdale has a tropical rainforest climate (Köppen Af), landing just above a tropical monsoon climate (Köppen Am) in terms of precipitation. While the city does not have a true dry season, much of the seasonal rainfall comes between May and October. Winters are frequently dry and sunny, and drought can be a concern in some years. Fort Lauderdale is situated in USDA hardiness zone 10b. The wet season runs from May through October, and weather is typically hot, humid, and wet with average high temperatures of and lows of . During this period, more than half of summer days may bring brief afternoon