Hurricane Felicia and Tropical Storm Guillermo Weaken

Both Hurricane Felicia and Tropical Storm Guillermo weakened on Monday morning. At 11:00 a.m. EDT on Monday the center of Hurricane Felicia was located at latitude 16.3°N and longitude 132.3°W which put it about 1515 miles (2435 km) east of Hilo, Hawaii. Felicia was moving toward the west at 12 m.p.h. (19 km/h). The maximum sustained wind speed was 80 m.p.h. (130 km/h) and there were wind gusts to 100 m.p.h. (160 km/h). The minimum surface pressure was 990 mb.

Hurricane Felicia weakened rapidly on Monday morning. Felicia moved over water where the Sea Surface Temperatures was near 26°C. The air over the cooler water was also drier. When the drier air entered the small circulation around Hurricane Felicia, thunderstorms in the eyewall and in the rainbands weakened. The eye at the center of Felicia filled with lower clouds. Many of the bands consisted primarily of showers and lower clouds. The strongest thunderstorms were occurring in a small area east of the center of circulation. Winds to hurricane force extended out 15 miles (25 km) from the center. Winds to tropical storm force extended out 45 miles (75 km) from the center of circulation.

Hurricane Felicia will continue to weaken during the next several days. Felicia will move over water where the Sea Surface Temperatures are near 26°C. It will continue to be an environment where the air is relatively dry, which will inhibit the formation of thunderstorms. An upper level trough near Hawaii will produce southwesterly winds that will blow across the top of Felicia. Those winds will cause moderate vertical wind shear and the wind shear will cause Felicia to weaken faster. Hurricane Felicia could weaken to a tropical depression by Tuesday night.

Hurricane Felicia will move south of a subtropical high pressure system over the Eastern North Pacific Ocean. The high will steer Felicia toward the west during the next several days. On its anticipated track the remnants of Hurricane Felicia could pass south of Hawaii at the end of the week.

Elsewhere over the Eastern North Pacific Ocean, Tropical Storm Guillermo also weakened on Monday morning. At 11:00 a.m. EDT on Monday the center of Tropical Storm Guillermo was located at latitude 19.1°N and longitude 117.8°W which put it about 575 miles (925 km) west-southwest of the southern tip of Baja California. Guillermo was moving toward the west at 15 m.p.h. (24 km/h). The maximum sustained wind speed was 40 m.p.h. (65 km/h) and there were wind gusts to 50 m.p.h. (80 km/h). The minimum surface pressure was 1005 mb.

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