Flooding left 2,000 people homeless in Mexicali along the United States-Mexico border, in addition, 325 homes and businesses were destroyed in southern California.

Immediately after developing, the depression curved northwestward, and began slowly intensifying over sea surface temperatures (SST's) of 82 °F (28 °C).

By 1800 UTC, winds increased to 50 mph (85 km/h), and the depression was then upgraded to Tropical Storm Doreen, which was centered about 530 mi (850 km) west-northwest of Acapulco.

Air Force reconnaissance began investigating Doreen late on August 14, and located the center about 185 mi (298 km) south of the tip of Baja California.

Unlike Hurricane Kathleen in 1976 which accelerated inland, Doreen moved slowly and re-emerged into the Pacific Ocean, over SST's of less than 72 °F (22 °C).

As a result, Doreen weakened to a tropical storm before making another landfall on the Port Eugenia Peninsula on August 16 shortly after 0600 UTC.

After satellite imagery noted a poorly-defined low-level circulation, the final advisory was issued on Doreen, which was centered about 29 miles (47 km) west of San Clemente Island, California at 0000 UTC on August 18.

[1] Hurricane Doreen dropped heavy rainfall along the western portions of Mexico and the Southwestern Region of the United States.

In Mexico, Doreen produced heaviest precipitation along the Baja California peninsula, where rainfall peaked at 14.80 in (376 mm) in the Los Cabos Area.

[1][2] At Edwards Air Force Base, the launch of Space Shuttle Enterprise on August 31 was delayed to September 7 after rainfall from Doreen flooded the runway of the previous flight.

Two of the four lanes on Interstate 15 were washed out from Los Angeles to Las Vegas, stranding thousands of gamblers in places like Barstow.

[8] While surveying damage in southwestern Arizona, a request was made to then-Governor Raul Hector Castro for $750,000 in emergency services funds.

[7] Rainfall was also minimal in the state of Utah, with only a few isolated areas reporting light precipitation, and generally did not exceed 3 in (76 mm).