000 AXPZ20 KNHC 272207 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 2135 UTC Sat Jun 27 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 1800 UTC surface analysis and satellite imagery through 2130 UTC. ...TROPICAL WAVES... A tropical wave is crossing Panama and extends southward to 02N with axis near 80W, moving westward at 10-15 kt. Numerous moderate to isolated strong convection is from 04N to 11N E of 88W. A tropical wave is crossing Central America with axis N of 01N along 90W, moving westward at 15-20 kt. Scattered moderate convection is noted from 05N to 10N between 88W and 96W. A tropical wave extends from 02N to 20N with axis near 107W, moving westward at 15-20 kt. Scattered moderate convection is from 04N to 20N between 98W and 110W. A tropical wave extends from 04N to 19N with axis near 114W, moving westward around 15 kt. Scattered moderate convection is from 05N to 11N between 110W and 120W. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough axis extends from 08N84W to 08N96W to 12N107W to 12N124W to 10N136W. Aside the convection associated with the tropical waves, scattered moderate convection is from 05N to 10N between 116W and 124W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A broad 1008 mb low pressure area is near 16N111W. This low is expected to move west-northwestward away from the coast of Mexico during the next couple of days while another low forms along a tropical wave to the E-SE. A swath of fresh to near gale force E-SE winds and seas of 8-11 ft will parallel the coast through early Mon. Aside from the winds and seas, scattered to numerous heavy showers and tstms are expected in this region. Elsewhere, mainly gentle to moderate NW-N winds prevail offshore of Baja California. Moderate to fresh southerly winds in the Gulf of California will pulse to strong to near gale force in the northern Gulf through Tue morning. Otherwise, little change is anticipated for the next several days. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Fresh to locally strong winds will pulse over and downstream of the Papagayo region through the middle of next week. Wave heights will peak around 8 ft at night. Moderate to occasionally fresh monsoon flow will prevail over the waters S of 10N through Sun. Looking ahead, building seas are possible W of 85W Mon through Tue night as monsoonal flow freshens across the region and SW swell propagates through the waters. Conditions will improve thereafter. REMAINDER OF THE AREA... Tropical Depression Boris is W of 140W, however associated winds and seas are still from 11N to 15N W of 137W. These conditions will diminish within the next 18 hours. Moderate to fresh monsoonal flow persists south of the monsoon trough between 97W and 125W. Fresh winds and SW swell are likely producing 7-8 ft combined seas in this region. Mainly moderate N-NE flow continues W of 120W between the monsoon trough and a high pressure ridge that extends across the northern waters, with seas generally 5-7 ft. A weak low-level circulation is near 11N126W, but associated wind speeds are 20 kt or less. A set of northerly swell will spread south of 30N by early Sun through early next week building seas to 7-9 ft N of 27N. Cross-equatorial southerly swell, combined with freshening monsoon flow, will build seas S of the monsoon trough and E of 120W through early Mon. Seas are building to 8-9 ft S of the Equator through Sun in the S-SW swell, then will subside on Mon. Looking ahead, another SW swell event is possible over the far southern waters Tue through Wed night. $$ Ramos