This article is about the 1990 hurricane. For other storms of the same name, see List of storms named Diana.
Not to be confused with Hurricane Diane.
Hurricane Diana
Diana at peak intensity near landfall in Mexico on August 7
Meteorological history
Formed
August 4, 1990
Dissipated
August 9, 1990
Category 2 hurricane
1-minute sustained (SSHWS/NWS)
Highest winds
100 mph (155 km/h)
Lowest pressure
980 mbar (hPa); 28.94 inHg
Overall effects
Fatalities
139
Damage
$90.7 million (1990 USD)
Areas affected
Costa Rica, Nicaragua, Honduras, Belize, Yucatán Peninsula, Mexico
IBTrACS
Part of the 1990 Atlantic and Pacific hurricane seasons
Hurricane Diana was a deadly tropical cyclone which made landfall in Mexico in August 1990. The fourth named storm and second hurricane of the season, Diana developed from a tropical wave in the southwestern Caribbean on August 4. Forming as a tropical depression, the system brushed Honduras before intensifying into a tropical storm the following day. Continuing to gradually strengthen, Diana made its first landfall in Mexico's Yucatán Peninsula as a strong tropical storm late on August 5. The cyclone weakened slightly due to land interaction, before emerging into the Bay of Campeche on August 6. Once over water, warm sea surface temperatures allowed Diana to quickly become a hurricane and later peak as a Category 2 on the Saffir–Simpson hurricane scale on August 7. Shortly thereafter, the storm made landfall near Tampico, Tamaulipas, with winds of 100 mph (160 km/h). Rapid weakening ensued once the storm moved over the high terrain of Mexico, with Diana diminishing to a tropical depression roughly 24 hours after moving onshore. The cyclone later emerged into the Gulf of California on August 9 shortly before dissipating. The remnant disturbance was monitored until losing its identity over Arizona on August 14.
Diana left relatively minor impacts in the Yucatán Peninsula. Some locations observed tropical storm-force sustained winds and gusts, while heavy rains left street flooding in the Chetumal area. Along the Gulf Coast of Mexico, the hurricane produced torrential rains exceeding 20 in (510 mm) in some places. The ensuing floods left about 3,500 people homeless and destroyed roughly 155 sq mi (400 km2) of farmland. Numerous roads and railways were either washed out or blocked by debris, cutting communication with several communities. In all, Diana killed 139 people in Mexico and resulted in approximately $90.7 million (1990 USD) in damage. The remnant disturbance caused street flooding in Arizona.
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