Hurricane Jova was a very powerful tropical cyclone that became the first Pacific hurricane to reach Category 5 strength on the Saffir-Simpson scale since Willa in 2018. Jova was also one of the fastest–intensifying tropical cyclones on record in the Eastern Pacific tropical cyclone basin. The tenth named storm, seventh hurricane, and fifth major hurricane of the 2023 Pacific hurricane season, Jova originated from a tropical wave that entered the Pacific Ocean on September 1. The system rapidly organized and became a tropical depression the following day. After brief inhibition by wind shear, The system explosively organized over the next two days. It formed a prominent in its central dense overcast on September 5 and nascent eye feature, Signaling its intensification into a hurricane. In a 24-hour period ending early on September 7, Jova's maximum sustained winds significantly increased from 90 mph (150 km/h) to its peak at 160 mph (260 km/h) and its central pressure fell 67 mbar (hPa; 1.89 inHg) to its minimum of 926 mbar (hPa; 27.43 inHg). This made it a Category 5 hurricane and was one of the five-fastest periods of intensification on record in the basin. Thereafter, an eyewall replacement cycle commenced. and decreasing sea surface temperatures caused the storm to gradually weaken, It fell below major hurricane status on September 8 and further weakened to a tropical storm on September 9. The total collapse of convection on September 10 marked its degeneration into a remnant low. The system later dissipated on September 12 as it opened up into a trough.
Jova's expansive cloud shield led to some rainfall in western states of Mexico with minor flooding occurring in Baja California Sur. Large waves and rip currents affected coastal areas from Sinaloa northward to the San Francisco Bay Area in California. Flooding in Arizona inflicted $250,000 in damage.