While Bud was initially expected to make landfall in Mexico as a Category 3 hurricane, new forecasts on Monday afternoon began predicting that Bud will hit Baja California or Cabo San Lucas as a weak tropical storm with winds reaching only about 40 miles per hour.
Bud was moving toward the north-northwest at about 6 miles per hour (9 kph) and was forecast to approach Baja California Sur on Thursday as a tropical storm.
Meanwhile, Tropical Storm Aletta's winds were down to 40 miles per hour (65 kph) and it was predicted to dissipate by late Monday or early Tuesday.
The swell also will generate strong rip and side currents, creating hazardous conditions for swimmers and surfers. In addition, rain from Bud "could cause life-threatening flash floods and mudslides in higher terrain".
Although authorities established a surveillance zone to follow the trajectory of the hurricane northward along Mexico's western coast, there were no evacuations of tourist spots like Acapulco, Puerto Vallarta and Cabo San Lucas. Rainfall of 3 to 6 inches (75 to 150 millimeters), with isolated patches of 10 inches (250 millimeters), was possible into Tuesday afternoon.
As mentioned earlier, Bud has begun its weakening phase, as it begins to track over cooler ocean water.
The Weather Channel said predicted it would be a tropical storm when it arrives in Baja California Sur.
A tropical storm watch was issued for the southwestern coast of Mexico from Manzanillo to Cabo Corrientes, popular resort areas.
Latest models show between three to four Category 3 hurricanes could form during the season, according to Tyler Roys, forecaster for AccuWeather.