On August 27, the National Hurricane Center (NHC) first mentioned the potential for an area of low pressure to develop south of Mexico as an area for tropical cyclogenesis.
An area of disturbed weather formed on August 31 offshore western Guatemala, which developed into a low-level trough the next day.
Favorable environmental conditions allowed the system to organize and develop a distinct low pressure area on September 2, which produced a widespread area of disorganized thunderstorms.
A circulation began organizing within the system, leading to the NHC classifying it as Tropical Depression Fifteen-E at 12:00 UTC on September 4.

With warm waters, moderate wind shear, and adequate moisture, the system continued to organize after formation, strengthening to Tropical Storm Newton just six hours after formation.
The storm moved northwestward, steered by a ridge that over Texas.
Late on September 5, an eye was visible on satellite imagery, and the Hurricane Hunters observed flight-level winds of 85 mph (137 km/h); based on these observations, the NHC upgraded Newton to hurricane status.
With continued low wind shear and warm waters, Newton intensified further and achieved a peak intensity of 90 mph (150 km/h) at 06:00 UTC on September 6.
That day, the large wind field and 52 mi (83 km) eye failed to organize more, and the hurricane made landfall at 14:00 UTC in El Cuñaño, Baja California Sur, with winds of 85 mph (140 km/h).

Rounding the western periphery of the ridge, Newton turned northward and weakened over the Baja California Peninsula.
The eyewall deteriorated and fell apart while the convection waned.
At 06:00 UTC on September 7, Newton weakened to a tropical storm and made a second landfall just south of Bahía Kino, Sonora about two and a half hours later, with winds of 65 mph (100 km/h).
The storm curved to the northeast ahead of a broad trough, with increasing wind shear exposing the center from the waning convection.
At 18:00 UTC on September 7, the NHC discontinued advisories on Newton, assessing that the storm degenerated into a post-tropical cyclone before crossing into southern Arizona.
The residual circulation continued northeastward, dissipating by early on September 8.
On August 27, the National Hurricane Center (NHC) first mentioned the potential for an area of low pressure to develop south of Mexico as an area for tropical cyclogenesis. An area of disturbed weather formed on August 31 offshore western Guatemala, which developed into a low-level trough the next day. Favorable environmental conditions allowed the system to organize and develop a distinct low pressure area on September 2, which produced a widespread area of disorganized thunderstorms. A circulation began organizing within the system, leading to the NHC classifying it as Tropical Depression Fifteen-E at 12:00 UTC on September 4.
With warm waters, moderate wind shear, and adequate moisture, the system continued to organize after formation, strengthening to Tropical Storm Newton just six hours after formation. The storm moved northwestward, steered by a ridge that over Texas. Late on September 5, an eye was visible on satellite imagery, and the Hurricane Hunters observed flight-level winds of 85 mph (137 km/h); based on these observations, the NHC upgraded Newton to hurricane status. With continued low wind shear and warm waters, Newton intensified further and achieved a peak intensity of 90 mph (150 km/h) at 06:00 UTC on September 6. That day, the large wind field and 52 mi (83 km) eye failed to organize more, and the hurricane made landfall at 14:00 UTC in El Cuñaño, Baja California Sur, with winds of 85 mph (140 km/h).
Rounding the western periphery of the ridge, Newton turned northward and weakened over the Baja California Peninsula. The eyewall deteriorated and fell apart while the convection waned. At 06:00 UTC on September 7, Newton weakened to a tropical storm and made a second landfall just south of Bahía Kino, Sonora about two and a half hours later, with winds of 65 mph (100 km/h). The storm curved to the northeast ahead of a broad trough, with increasing wind shear exposing the center from the waning convection. At 18:00 UTC on September 7, the NHC discontinued advisories on Newton, assessing that the storm degenerated into a post-tropical cyclone before crossing into southern Arizona. The residual circulation continued northeastward, dissipating by early on September 8.
Hurricane Newton (2016)