UNIQUE IDENTIFIER: K
TIME (e.g. 1800 UTC SAT FEB 22 2020): 1500 UTC FRI AUG 20 2021
ADVISORY HEADLINE: LINDA BECOMES POST-TROPICAL… THIS IS THE FINAL ADVISORY
INPUT INTERP ATCF: ep122021 LINDA 20210820 1500 20.3 -144.0 E LO 35.0 1006.0 13.43 276.95
ADVISORY NUMBER: 26
NEXT ADVISORY TIME (e.g. SEP 16 2021, 1800 UTC)
Please allow time for floater to build.
• STORM FLOATER •
E () PUBLIC ADVISORY # FORCE THIRTEEN , ...... SUMMARY OF INFORMATION ----------------------------------- LOCATION...NEAR ... MAXIMUM SUSTAINED WINDS...MPH...KM/H MINIMUM CENTRAL PRESSURE...MB WATCHES AND WARNINGS ----------------------------------- There are no coastal watches or warnings in effect. Although Linda has become post-tropical, remnants of the system are expected to impact portions of the main Hawaiian Islands Sunday and Monday. Interests in Hawaii should monitor the progress of the remnant low.
DISCUSSION ----------------------------------- Linda's time as a tropical cyclone has come to an end. Infrared and VIIRS day-night satellite imagery depict an elongating low cloud swirl, and deep convection has been absent over the center for nearly 24 hours, thus Linda is deemed to be post-tropical. The initial intensity estimate of 35 kt for this advisory remains heavily influenced by a recent scatterometer pass that indicated winds to 40 kt north of the center. The initial motion estimate is 280/15 kt, with Linda being steered by a persistent low- to mid-level ridge to the north. Tightly- clustered track guidance indicates that the ridge will continue to drive the post-tropical remains of Linda toward the west, with a slight reduction in forward speed tonight and Saturday. The guidance has trended southward over the last couple of days, and the official forecast indicates that remnants of Linda will impact portions of the main Hawaiian Islands Sunday and Monday, in line with the corrected consensus guidance HCCA, and the GEFS mean. Compared to the recent rapid weakening, a relatively slow rate of decay of the wind field is expected over the next couple of days. As the system gradually spins down, gale force winds north of the center will be slow to diminish, due to the gradient between the high to the north and the remnant low. Some sporadic deep convection may also occur, but the combined effects of dry air in the mid- and upper-levels and increasing vertical wind shear will prevent regeneration into a tropical cyclone, and lead to system dissipation by day 4. This is supported by the reliable global models, as well as the intensity consensus IVCN. This is the last advisory issued by the Central Pacific Hurricane Center on Linda. Future information on this system can be found in forecasts issued by the National Weather Service in Honolulu, on the web at http://weather.gov/hfo.
LOCAL AND OFFICIAL SOURCES BELOW National Hurricane Center (East Pacific) $$ Forecaster