Tropical Storm Douglas

000
WTPZ44 KNHC 030835
TCDEP4
 
Post-Tropical Cyclone Douglas Discussion Number   9
NWS National Hurricane Center Miami FL       EP042026
200 AM PDT Fri Jul 03 2026
 
Douglas is no longer a tropical cyclone. The system has not produced 
organized deep convection in the last 12 hours, and its low-level 
center is completely exposed in proxy-visible satellite images due 
to increasing westerly shear. Recent ASCAT data showed the system is 
still producing tropical-storm-force winds in its northern 
semicircle, and the extent of those winds was slightly larger than 
previously estimated. Since Douglas is now a post-tropical low, this 
will be the final NHC advisory. The initial intensity is 35 kt based 
on the scatterometer winds and more recent satellite estimates.

The scatterometer data also indicated the center of Douglas is 
slightly left of our previous estimates. The system is moving toward 
the north-northwest (335/7 kt), but a northwestward turn is expected 
during the next day or two as the low becomes steered by the 
low-level flow. Based mainly on the initial position adjustment, the 
NHC forecast track has been moved to the left, which brings it 
closer to the multi-model consensus. Redevelopment is not expected 
due to strengthening westerly shear, increasing mid-level dry air, 
and decreasing sea-surface temperatures along the forecast track. 
Thus, the low is predicted to gradually weaken this weekend and then 
open into a trough and dissipate by Sunday.

For additional information on this system please see High Seas 
Forecasts issued by the National Weather Service, under AWIPS header 
NFDHSFEPI, WMO header FZPN02 KWBC, and on the web at 
ocean.weather.gov/shtml/NFDHSFEPI.php
 
 
FORECAST POSITIONS AND MAX WINDS
 
INIT  03/0900Z 19.4N 128.3W   35 KT  40 MPH...POST-TROPICAL
 12H  03/1800Z 20.2N 128.7W   30 KT  35 MPH...POST-TROP/REMNT LOW
 24H  04/0600Z 21.1N 129.4W   30 KT  35 MPH...POST-TROP/REMNT LOW
 36H  04/1800Z 22.0N 130.3W   25 KT  30 MPH...POST-TROP/REMNT LOW
 48H  05/0600Z 22.9N 131.4W   25 KT  30 MPH...POST-TROP/REMNT LOW
 60H  05/1800Z...DISSIPATED
 
$$
Forecaster Reinhart