000 AXPZ20 KNHC 231559 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1605 UTC Fri Apr 23 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 1200 UTC surface analysis and satellite imagery through 1500 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 08N78W to 1010 mb low pressure near 07N94W to 08N110W to 06N115W. ITCZ continues from 06N115W to west of 06N140W. Scattered moderate to isolated strong convection is noted from 10N to 13N between 98W and 106W. Scattered moderate convection is observed from 05N to 07N between 115W and 120W, and from 06N to 09N between 130W and 135W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A ridge dominates the offshore waters west of Baja California. The pressure gradient between the ridge and lower pressure over Mexico is supporting gentle to moderate NW to N winds west of the Baja California peninsula. Light to gentle winds prevail elsewhere over the open waters off Mexico. Recent altimeter data shows seas are in the 5 to 7 ft range across much of the area. This is mostly due to southerly swell. Gulf of California: Moderate to locally fresh winds prevail over the Gulf of California with seas in the 2-4 ft range. The winds will diminish slightly, to the gentle to moderate range later today. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, and WITHIN 750 NM OF ECUADOR... High pressure across the NW Caribbean supporting fresh to strong winds across the Papagayo region will shift east, allowing these gap winds to diminish this afternoon. Large, long period cross- equatorial southerly swell is supporting 6 to 9 ft seas into today, but will subside through Sat night. REMAINDER OF THE AREA... The pressure gradient between high pressure located north of the forecast area and lower pressure in the vicinity of the ITCZ supports a large area of moderate to locally fresh trade winds from 08N to 20N west of 125W. Seas are 6 to 8 ft across this region. High pressure will gradually weaken today as a cold front approaches from the northwest. High pressure will build in the wake of the front, and will dominate the forecast waters during the upcoming weekend. $$ Christensen