It crossed western Cuba on June 10 and strengthened to just under hurricane strength before making its final landfall on the Florida Panhandle the next day.

Two days later, a stronger tropical wave moved through the western Caribbean, triggering pressure drops and the expansion of thunderstorm activity.

[1] Hurricane Hunters investigating the system observed a poorly organized albeit closed circulation at this time with the strongest winds displaced to the north and east within banding features.

[2] Early on June 9, notably deep convection organized into curved bands and signaled the system's intensification into a tropical storm by 06:00 UTC while situated 175 mi (282 km) west-southwest of the Cayman Islands.

[1] The depression began to move northward toward western Cuba later that day, but as it was a very large and poorly organized system under the influence of high wind shear, the official forecasts from the National Hurricane Center emphasized that the route the storm would take was uncertain.

It produced precipitation over a very wide area; the Cayman Islands reported tropical storm-force winds and heavy rain over 150 statute miles (240 km) east of the center.

Tropical Storm Arlene had an unusual structure throughout its life, with a large circulation containing numerous small centers rotating about a larger gyre, as opposed to an inner convective core.

The storm finally became extratropical on June 13 just northeast of Flint, Michigan and was absorbed by a larger system the next day.

[1] While Arlene was over Cuba, a tropical storm watch was issued for the Gulf Coast from Morgan City, Louisiana to Indian Pass, Florida.

[1] Local branches of the National Weather Service issued coastal flood watches for Escambia and Santa Rosa counties.

[1] County authorities in parts of Alabama held conferences on June 10 in anticipation of heavy rain from Tropical Storm Arlene.

[8] In accordance with a policy passed a week prior, FEMA began strapping down trailers provided for victims of Ivan shortly before the arrival of Arlene.

[9] Still recovering from Hurricane Ivan which struck the Gulf Coast in September 2004, construction contractors and residents were forced to hasten home repair efforts in order to secure structures.

[9] Florida Governor Jeb Bush issued a state of emergency two days before the storm's final landfall.

Walton County officials issued a voluntary evacuation order for low-lying areas and mobile homes.

[15] Arlene produced heavy rain across parts of Central America and the Cayman Islands during its developmental stages.

[19] Between June 9 and 10, Tropical Storm Arlene produced heavy rains over western areas of Cuba, leading to school closures in several cities.

The area impacted by the rainfall was previously suffering from a severe drought and moisture brought in by Arlene helped alleviate the dry conditions.

[22] The only death attributed to Arlene was that of a woman caught in a rip current in Miami Beach, far from the center of circulation.

[25] Heavy rainfall in Towns County, Georgia forced multiple residents to evacuate from rising flood water.

[25] The remnants of Arlene combined with a non-tropical system caused heavy rainfall across New York, with some locations reporting 6 to 7 inches (150 to 180 millimetres) of precipitation in a 2-hour period.