Tropical Storm Gonzalo

000
WTNT42 KNHC 262038
TCDAT2
 
Post-Tropical Cyclone Gonzalo Discussion Number   8
NWS National Hurricane Center Miami FL       AL072026
800 PM CVT Sat Sep 26 2026

The bulk of the convective activity associated with Gonzalo has 
become even further separated from its center this afternoon. This 
increased separation is due to strong southwesterly vertical wind 
shear, diagnosed at nearly 50 kt this afternoon by UW-CIMSS. In 
addition, water vapor imagery shows very dry air infiltrating the 
low-level circulation, limiting convective redevelopment. Given that 
the nearest convection is now more than 100 n mi away from the 
center, lacks sufficient organization, and that these very 
unfavorable conditions are likely to persist, Gonzalo is being 
declared a post-tropical cyclone in this advisory. The maximum 
sustained winds remain 35 kt, assuming some higher winds exist in 
the convection displaced well northeast of the center. The 
post-tropical cyclone is still moving off to the north-northeast at 
045 degrees at 6 kt. Downshear convection may still attempt to tug 
the center more northward over the next 12-24 h. However, as this 
activity diminishes, a shallow low-level ridge should steer the 
remnant low more west-northwest during the early portion of next 
week before dissipation.

This is the final NHC advisory on Gonzalo. Additional information 
on this system can be found in High Seas Forecasts issued by the 
National Weather Service, under AWIPS header NFDHSFAT1, WMO header 
FZNT01 KWBC, and online at ocean.weather.gov/shtml/NFDHSFAT1.php

 
FORECAST POSITIONS AND MAX WINDS
 
INIT  26/2100Z 19.3N  23.3W   35 KT  40 MPH...POST-TROPICAL
 12H  27/0600Z 20.1N  23.5W   30 KT  35 MPH...POST-TROP/REMNT LOW
 24H  27/1800Z 20.8N  23.7W   25 KT  30 MPH...POST-TROP/REMNT LOW
 36H  28/0600Z 21.3N  24.1W   20 KT  25 MPH...POST-TROP/REMNT LOW
 48H  28/1800Z 21.5N  24.5W   20 KT  25 MPH...POST-TROP/REMNT LOW
 60H  29/0600Z 21.7N  25.1W   20 KT  25 MPH...POST-TROP/REMNT LOW
 72H  29/1800Z...DISSIPATED
 
$$
Forecaster Papin