A new tropical storm has evolved in the warm ocean waters of eastern Pacific. Tropical Storm "Patricia" developed on October 21, 2015, off the coast of Mexico, National Hurricane Center (NHC) reports. The storm is currently intensifying and is expected to become a hurricane before making a landfall in southwestern Mexico on October 24. Both a Hurricane Watch and a Tropical Storm watch have been issued for coastal parts of the region, as the system is expected to cause dangerous flash floods and mudslides.
Tropical Storm "Patricia" was located about 530 km (330 miles) from Acapulco, Mexico on October 21, 12:00 UTC, according to NHC. The system was packing maximum sustained winds of 65 km/h (40 mph) with wind gusts reaching 83.3 km/h (51.8 mph) and traveling to the west at 14 km/h (9 mph). Minimum central pressure of the storm was 1 004 hPa.
Tropical Storm "Patricia" approaching southwestern Mexico, October 21, 11:30 UTC. Image credit: UW-CIMSS
During the next 48 hours Patricia is expected to turn toward the west-northwest and then northwest while gaining forward speed.
The system is now in an environment favorable to allow its intensification, with quite high sea surface temperatures of almost 30 °C (86 °F), light vertical shear and a very moist atmosphere.
Currently, winds of tropical force extend up to 220 km (140 miles) from the center, however the system is expected to strengthen into a hurricane by October 22.
— The Weather Channel (@weatherchannel) October 21, 2015
Tropical Storm "Patricia" is expected to make landfall over southwestern Mexico by October 24, NHC forecasts. The system will gain more strength over the coming days, as well, and is expected to reach at least category 2 prior landfall. If Patricia develops a well-defined inner core, rapid intensification could take place.
A Hurricane watch has been put in place for the regions between Lazaro Cardenas and Playa Perula, while a Tropical Storm Watch is effective from East of Lazaro Cardenas to Tecpan De Galeana.
Tropical Storm "Patricia" 5-day forecast track. Image credit: NWS/NOAA
Tropical storm conditions are possible within parts of the watch area by late October 22 or early October 23, NHC warns. Patricia is expected to bring between 152.4 and 304. 8 mm (2 to 4 inches) of accumulated rainfall across the Mexican states of Jalisco, Colima, Michoacan and Guerrero from late October 22 into October 24. Over isolated parts inside the watch zone up to 508 mm (20 inches) is possible.
Heavy rainfalls could produce life-threatening flash floods and mudslides across the affected area, according to NHC.
Featured image: Tropical Storm "Patricia" approaching Mexico. Image credit: UW-CIMSS
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