000 AXPZ20 KNHC 102128 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 2205 UTC Wed Mar 10 2021 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 1800 UTC surface analysis and satellite imagery through 2100 UTC. ...SPECIAL FEATURES... Heavy Rainfall potential in Western Colombia: Heavy rainfall is possible along and near the coast of Colombia at times, with enhanced precipitation possible through the end of the week. Mariners near the coast of Colombia are advised to be aware of the possibility of reduced visibility from heavy rain and strong thunderstorms. Please refer to forecasts and bulletins issued by your National Meteorological Service for more details. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A surface trough extends from 05N85W to 01N106W. The ITCZ continues from 01N106W to 03N140W. Scattered moderate convection is noted S of 06N between 85W and 100W and from 01N to 08N between 124W and 140W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Fresh to strong northerly winds will prevail in the Gulf of Tehuantepec through the next 24 hours. After that, light to gentle variable winds will prevail across the area through the forecast period. 8 to 10 ft seas will prevail through tonight, then subsiding to 4 to 5 ft through the weekend and early next week. Fresh to strong NW winds north of Cabo San Lazaro will spread southward to Cabo Corrientes, including the southern Gulf of California through the weekend. Large NW swell west of Baja California will begin to decay Thu and Fri, allowing the seas to subside to 8-9 ft, except in the area of fresh to strong winds. A decaying cold front will approach Baja California Norte tonight, with moderate to fresh winds becoming SW-W and increasing. Highest winds will be near gaps in the coastal terrain, where fresh to strong winds are possible. Winds in the southern half of the Gulf of California will become fresh to strong Fri night through Sun. Gentle to moderate winds will prevail elsewhere over the offshore waters west of southern Mexico, except in the vicinity of the Gulf of Tehuantepec. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, and WITHIN 750 NM OF ECUADOR... See the Special Features section above regarding the potential for heavy rainfall along and near the coast of Western Colombia. Fresh to strong NE winds will continue to pulse across the Papagayo region through the weekend, with highest winds expected at night. Seas associated with these winds will remain 7 to 9 ft. Fresh north winds in the Gulf of Panama will pulse at night through the weekend. Large northerly swell associated with strong winds in the Tehuantepec region will propagate through the far offshore waters of Guatemala and El Salvador through this evening. Light to gentle winds, with seas in the 3 to 6 ft range, will prevail elsewhere through the end of the week. REMAINDER OF THE AREA... High pressure ridging stretches east-southeastward to near 20N110W. The gradient between this ridge and lower pressure south of 20N is supporting fresh to strong trade winds between the ITCZ and 20N west of about 128W. Seas in this area are in the 8-12 ft range with long-period NW to N swell. The swell will gradually shift east-southeast through Thu as a decaying cold front moves across the NW part of the area. Large long-period NW to N swell over the NW forecast waters continues to produce seas of 10-12 ft. The swell will gradually propagate east-southeast and mix with wind waves in the area of fresh to strong trade winds. Reinforcing NW to N swell will move through the northern waters later in the week. A low pressure system west of the area may approach 140W by the end of the weekend, bringing increased winds and seas. $$ ERA