|Tropical Storm Barbara||Winds: 40 kt|
|Pressure: 999 mbar|
|Advisory 25 / 8:00 PM PDT Fri July 5, 2019|
The grim reaper knocks on Barbara's door. The storm has failed to muster any convection whatsoever since the last advisory, impeded by ocean temperatures under 25C, dry mid-level air, and wind shear over 25kt. Current intensity estimates have fallen to T2.5/35kt from UW-CIMSS ADT and SAB. However, the initial intensity is set at a slightly higher 40kt on the basis of the earlier ASCAT pass which showed a wide swath of winds just under 50kt. Continued weakening is expected, and this is likely to be Barbara's final advisory as a tropical cyclone. Dissipation is expected about 2 days from now.
The storm has continued on its westward motion, steered by building mid-level ridging to its north. A west or even west-southwest trajectory will continue over the coming days thanks to the influence of the aforementioned ridge in addition to the typical low-level easterly trade wind flow across the Pacific. Barbara will pass close to the Hawaiian Islands about 3 days from now, but consequences are not likely to be noteworthy.
FORECAST MAX WINDS
INIT 06/0300Z 40 KT 45 MPH
12H 06/1200Z 30 KT 35 MPH...POST-TROP/REMNT LOW
24H 07/0000Z 25 KT 30 MPH...POST-TROP/REMNT LOW
36H 07/1200Z 20 KT 25 MPH...POST-TROP/REMNT LOW48H 08/0000Z...DISSIPATED