000 AXPZ20 KNHC 270739 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1005 UTC Tue Apr 27 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 0600 UTC surface analysis and satellite imagery through 0840 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 08.5N84W to 08N94W to 11N113W to 08N121W. The ITCZ extends from 08N121W to 05N140W. Scattered moderate isolated strong convection was noted from 03N to 07N between 82W and 90W, from 03N to 08N between 93W and 98W, and from 03N to 11N between 101W and 112W. Scattered moderate convection was noted from 04N to 08N between 120W and 140W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Strong to near gale force winds are noted over the northern Gulf of California, with seas in the 5-6 ft range. Gentle to moderate winds prevail elsewhere over the open waters off Mexico. Seas are in the 3-5 ft range in a mix of northwest and south swell over the open waters off Mexico. For the forecast, strong to near gale SW to W gap winds over the northern Gulf of California will diminish early today. High pressure will build west of the region supporting fresh winds off Baja California by mid week. Farther south, slight to moderate seas will build by mid- week as a new set of southerly swell arrives. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, and WITHIN 750 NM OF ECUADOR... Moderate to fresh gap winds prevail over the Gulf of Papagayo and moderate north winds across the Gulf of Panama. Light to gentle winds persist elsewhere. Seas are in the 4-6 ft range in lingering southerly swell. For the forecast, gentle to moderate winds will persist across the region, with subsiding southerly swell. Fresh to strong gap winds will pulse mainly overnight across the Gulf of Papagayo tonight. Additional southerly swell will move into the region by mid-week. REMAINDER OF THE AREA... A cold front extends across northern Baja California to near 25N124W, then a dissipating frontal trough extends from 25N124W to 22N138W. This front will weaken through Tue as moves across the rest of waters north of 25N. The subtropical ridge over the northern waters has weakened and loosened the pressure gradient between the ridge and lower pressure in the vicinity of the ITCZ. The pressure gradient will support mostly moderate trades through mid-week. Seas to near 7 ft over the far western part of the area from 04N to 12N west of 137W will subside slightly Tue. Elsewhere, modest winds and seas will change little. Looking ahead, trade winds may increase later in the week over the tropical waters west of about 123W as the subtropical ridge builds to the north. $$ AL