000 AXPZ20 KNHC 121452 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1605 UTC Thu Aug 12 2021 Tropical Weather Discussion for the eastern Pacific Ocean from 03.4S to 30N, east of 120W including the Gulf of California, and from the Equator to 30N, between 120W and 140W. The following information is based on satellite imagery, weather observations, radar, and meteorological analysis. Based on 1200 UTC surface analysis and satellite imagery through 1430 UTC. ...SPECIAL FEATURES... Hurricane Linda is centered near 14.8N 107.7W at 12/1500 UTC moving WNW at 7 kt. Estimated minimum central pressure is 991 mb. Maximum sustained wind speed is 65 kt with gusts to 80 kt. Peak seas are currently 23 ft. Numerous moderate and isolated strong convection is noted within 135 nm in the north semicircle and 180 nm in the south semicircle of Linda, with similar convection elsewhere from 09N to 15N between 109W and 116W. Linda is forecast to remain a hurricane through Sun morning. Please read the latest NHC Public Advisory at https://www.nhc.noaa.gov/text/MIATCPEP2.shtml and Forecast/ Advisory at https://www.nhc.noaa.gov/text/MIATCMEP2.shtml for more details. Post-Tropical Cyclone Kevin is centered near 23.2N 120.6W at 12/1500 UTC moving WNW at 12 kt. Estimated minimum central pressure is 1007 mb. Maximum sustained wind speed is 30 kt with gusts to 40 kt. Peak seas are currently 13 ft. A small cluster of scattered moderate convection is noted well away from the exposed center of the post-tropical cyclone from 19N to 21N between 122W and 126W. The remnant low of Kevin will continue to move to the WNW away from the waters west of Baja California, dissipating Sun morning. Please read the latest NHC Public Advisory at https://www.nhc.noaa.gov/text/MIATCPEP1.shtml and Forecast/ Advisory at https://www.nhc.noaa.gov/text/MIATCMEP1.shtml for more details. ...TROPICAL WAVES... A tropical wave is along 92W, moving slowly W at around 5 kt. Scattered moderate and isolated strong convection is noted from 10N to 17N between 89W and 100W. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough axis extends from the NW coast of Colombia near 11N74W to across the Panama/Costa Rica border to 09N89W to 11N100W, then resumes west of Linda from 15N111W to 11N130W to 08N140W. Scattered moderate and isolated strong convection is noted from 01N to 08N between 77W and 85W, from 09N to 13N between 117W and 127W, and from 09N to 11N between 128W and 133W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Please read the Special Features section for details on Hurricane Linda and Post-Tropical Cyclone Kevin. A plume of moderate to fresh N-NE winds is in the Gulf of Tehuantepec. Gentle to moderate winds prevail elsewhere outside of the influence of Linda and Kevin, along with seas of 4 to 7 ft, except 3 ft or less in the central and northern Gulf of California. For the forecast, Linda is forecast to strengthen to a hurricane Fri morning with significant impacts likely in the Revillagigedo Islands. Linda is forecast to move west of the offshore waters by Sat night with conditions in its wake improving through the remainder of the weekend. The remnant low of Kevin will continue to move to the WNW away from the waters west of Baja California, dissipating Sun morning. Moderate to fresh N-NE winds will continue to pulse in the Gulf of Tehuantepec, increasing to fresh to strong late Fri night, and again Sat night. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, and WITHIN 750 NM OF ECUADOR... Moderate to fresh E winds are noted in the Papagayo region, with light to gentle winds elsewhere north of the monsoon trough. Moderate to locally fresh S-SW winds are south of the monsoon trough. Seas are in the 4 to 7 ft range in long period mixed swell. For the forecast, moderate to fresh E winds will pulse in the Papagayo region through the end of the week. Otherwise, gentle winds will prevail north of the monsoon trough through Mon. South of the monsoon trough, mainly moderate, occasionally fresh, S to SW winds will prevail through Mon. A set of southerly swell may impact the waters offshore of Ecuador early next week. REMAINDER OF THE AREA... Please read the Special Features section for details on Hurricane Linda and Post-Tropical Cyclone Kevin. Weak surface ridging prevails across the remainder of the open waters. Gentle to moderate trades are noted north of the monsoon trough outside of the influence of Linda and Kevin, with moderate to fresh southerly flow south of the monsoon trough. Seas of 4 to 7 ft in mixed long period swell are noted outside of Linda and Kevin. For the forecast, Linda is forecast to remain a hurricane through Sun morning. Kevin will continue to spin down, dissipating by Sun morning. Elsewhere, southerly swell from the southern hemisphere will cross the Equator Sun night into Mon, resulting in seas of 7 to 10 ft south of 10N between 100W and 125W. $$ Lewitsky