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Post-Tropical Cyclone Gilma Forecast Discussion Number 13
2018-07-29 22:52:27| National Hurricane Center (East Pacific)
Issued at 200 PM PDT Sun Jul 29 2018 076 WTPZ43 KNHC 292052 TCDEP3 Post-Tropical Cyclone Gilma Discussion Number 13 NWS National Hurricane Center Miami FL EP082018 200 PM PDT Sun Jul 29 2018 Gilma has lacked organized deep convection near the center for at least 12 hours now. Although there has been a cluster of thunderstorms lingering about 90 n mi southeast of the exposed center, this convection has been pulling away from the system and lacks sufficient organization necessary for a tropical cyclone. Therefore, this is the last advisory issued by the National Hurricane Center on Gilma. Very strong west-northwesterly shear is expected to continue during the next few days. These hostile winds combined with marginal SSTs and dry air should cause the remnant low to degenerate into a trough in 36 to 48 hours. The remnant low is moving westward at 13 kt steered by the low-level flow on the south side of a ridge, and it should cross into the Central Pacific basin shortly. This general motion is expected to continue until the system dissipates. For additional information on the remnant low please see High Seas Forecasts issued by the National Weather Service, under AWIPS header NFDHSFEPI, WMO header FZPN02 KWBC, and on the web at https://ocean.weather.gov/shtml/NFDHSFEPI.shtml. FORECAST POSITIONS AND MAX WINDS INIT 29/2100Z 16.2N 139.7W 30 KT 35 MPH...POST-TROP/REMNT LOW 12H 30/0600Z 16.2N 141.4W 25 KT 30 MPH...POST-TROP/REMNT LOW 24H 30/1800Z 16.1N 143.8W 25 KT 30 MPH...POST-TROP/REMNT LOW 36H 31/0600Z 15.9N 146.3W 25 KT 30 MPH...POST-TROP/REMNT LOW 48H 31/1800Z...DISSIPATED $$ Forecaster Cangialosi
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