000 AXPZ20 KNHC 060216 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 140 UTC Mon Jan 6 2020 Tropical Weather Discussion for the eastern Pacific Ocean from the Equator to 32N, east of 140W. The following information is based on satellite imagery, weather observations, radar, and meteorological analysis. Based on 0000 UTC surface analysis and satellite imagery through 0130 UTC. ...SPECIAL FEATURES... Gulf of Tehuantepec Gale Warning: High pressure over NW Gulf of Mexico is continuing to move east this evening, allowing the pressure gradient over southern Mexico to continue to relax. Still, winds of 35 to 40 kt are occurring in and near the Gulf, with peak seas around 16 ft. Winds will only slowly subside overnight, and gale conditions should persist through midday Mon. This decrease in winds will be weak as another strong high pressure ridge will build south into northern Mexico by Mon night, and new gales will develop by late Mon night. N winds will likely be near storm force Tue eve and night, and gale conditions will likely prevail through Wed night. The seas in excess of 12 feet will initially prevail into Mon afternoon, then redevelop early Tue and continue through Wed night. Please read the latest High Seas Forecast issued by the National Hurricane Center under AWIPS/WMO headers FZPN03 KNHC/HSFEP2 or at website https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml for further details. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from low pressure 1012 mb near 05N77W to 05N91W. The ITCZ then continues from 05N91W to 04N110W to 05N125W to beyond 06N140W. Scattered moderate to isolated strong convection is noted from 05N to 13N between 99W and 107W, and from 05N to 12N W of 130W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... See the Special Features section for more details about the Gale Warning for the Gulf of Tehuantepec. Gulf of California: As high pressure settles southward from the Great Basin, NW winds will increase to strong overnight and continue into early Tue morning. Seas of up to 8 ft are expected Mon and Mon night. NW swell generated from gales well north of the area has reached offshore Baja California Norte this evening. The associated seas of up to 10 ft will propagate some SE overnight the prevail until Mon night. Another set of NW or N swell will arrive early Wed and persist into Fri. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Seas of 12 to 14 ft from swell generated by strong gales in the Gulf of Tehuantepec described above will continue in the offshore Guatemalan waters through late tonight. Seas in excess of 8 ft will prevail offshore Guatemala and El Salvador into Mon night. Additional swell from new gales over the Gulf will impact the same region as early as Tue night. Gulf of Papagayo: Strong NE to E winds will prevail through the weekend. Winds may approach gale levels Tue night and Wed morning. Seas of 8 to 9 feet will prevail through tonight, with similar seas developing Tue night and continuing through late Thu. Gulf of Panama: Pulses of fresh northerly winds are expected to dominate the Gulf and waters N of 05N through into late week. Elsewhere, gentle to moderate S to SW flow will continue over the offshore waters of and S of Costa Rica through the week. REMAINDER OF THE AREA... Strong 1036 mb high pressure is just NW of the area near 35N139W with a ridge reaching SE of the high all the way to near Cabo Corrientes. A tight pressure gradient south of the ridge exists, producing fresh to strong tradewinds mainly N of 08N and W of 120W. Seas of 8 to 13 ft are occurring in association with this winds combined with northerly swell W of 125W. The high and ridging will weaken through the early part of the week, allowing for trades to diminish which will assist in subsiding seas. That will be short lived as the pressure gradient re-tightens by mid- week as a N to S trough propagates westward in the vicinity of the ITCZ. Northerly swell is pushing S into the waters N of 25N and E of 125W this evening. Across this areas, seas of 12 to 14 ft will prevail into Mon afternoon. Conditions will then improve until new northerly swell begins to arrive Wed. $$ KONARIK