000 AXPZ20 KNHC 080924 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1005 UTC Sat Jun 8 2019 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 0900 UTC. ...TROPICAL WAVES... A tropical wave extends southward from near the Guatemala and El Salvador border into the E Pacific waters along 89W/90W moving W around 15-20 kt. Scattered moderate and isolated strong convection was noted from 05N to 08N between 90W and 98W, and from 13N to 15N between 91W and 94W. Weak low pressure may form along the tropical wave by early next week. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from across interior Central America to near the coast of Guatemala at 15N92W to 13N100W to 07N109W. The ITCZ continues from 07N109W to 06N112W to 08N125W to 07N140W. Scattered moderate and isolated strong convection was noted from 04N to 07N between 104W and 109W, from 03N to 05N between 113W and 116W, from 04N to 08N between 117W and 122W, and also from 07N to 09.5N between 131W and 136W. ...DISCUSSION... OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Latest scatterometer data indicate gentle to moderate winds prevail across the forecast waters, except off the coast of Cabo San Lucas, where moderate to fresh winds prevail. Over the open waters off Mexico, seas are mainly in the 4-6 ft range, reaching near 8 ft west of Guadalupe Island. Seas over the Gulf of California are 3 ft or less. High pressure west of Baja California will maintain gentle to locally moderate NW winds over the offshore waters through the weekend. Winds may briefly pulse to fresh off Cabo San Lucas each late afternoon and evening for the next several days. Fresh northerly swell will prevail over the Baja California Norte offshore waters today. Seas that are currently peaking will gradually subside through the remainder of the weekend into early next week. Gap winds will strengthen over the Gulf of Tehuantepec early next week as the local pressure gradient tightens. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Latest surface observations indicate light to gentle SW monsoon flow persists across the forecast waters S of 07N, with light flow N of 07N. Seas are in the 5-8 ft range S of 07N, and 4-6 ft N of 07N. Long period SW swell will prevail over the far southern waters. Seas between Ecuador and the Galapagos Islands are currently peaking and will gradually subside through the remainder of the weekend. REMAINDER OF THE AREA... High pressure of 1031 mb centered well N of the area near 41N133W extends a ridge SE to just S of the Revillagigedo Islands. Moderate to fresh N to NE winds prevail over the waters N of 20N to the W of 121W, with seas in the 6-10 ft range in northerly swell. Gentle to moderate winds, with seas in the 4-7 ft range in mixed swell prevail elsewhere. The northerly swell will continue to bring seas of 8 ft or greater across the waters west of Guadalupe Island between 120W and 130W. Seas of 8 ft will reach as far south as 26N by tonight before subsiding Sun through Mon. Farther south, southerly swell will continue dominating the waters east of 120W through early next week. Recent altimeter passes revealed 8-9 ft seas reaching as far as 04N between 95W and 120W. The swell will gradually subside over the remainder of the weekend and into early next week. $$ Lewitsky