Saturday 5Sept Tropical Storm Julio forms just along the S/SW Mexico coast.
This was the mid-level center (MLC) of Nana. Since it was not the Low Level Center (LLC) of Nana (very hard to survive crossing the higher mountains), the system gets a new name. (If you look at storm from the side from ocean surface up to the top of the clouds and cut it like a double layer cake you would have the bottom portion the LLC and the upper portion the MLC...different sections but still a spin of storm). Had the LLC formed Julio then it would have retained the Nana name.
Sun 6Sept 5aEDT,3aMDT:
Estimated winds 45mph(75km/h), moving WNW 18mph(30km/h), pressure 1003mb.
Center about 150miles(235km) SW of Manzanillo, Mexico. TS winds extend out up to 35miles(55km) from center.
Heading out to sea, may brush Socorro Island. No Watch/Warnings for this storm at this time.
Official storm stats are released by the US National Hurricane Center (NHC) every 6hours at 5 & 11am/pmEDT/HST (2&8a/p PDT) here:
https://www.nhc.noaa.gov/