692 AXPZ20 KNHC 102204 CCA TWDEP Tropical Weather Discussion...Corrected NWS National Hurricane Center Miami FL 1605 UTC Fri Aug 10 2018 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 1545 UTC. ...SPECIAL FEATURES...Corrected Gale Warning: The now Post-Tropical storm John low centered near 26.8N 121.1W at 1500 UTC, moving NW or 310 degrees at 9 kt. Estimated minimum central pressure is 1003 mb. Earlier tropical storm conditions associated with John have transitioned to gale force conditions within 120 nm of the center in the NE semicircle and within 60 nm of the center in the SW semicircle. Winds of 30-40 kt are in the NE semicircle with seas of 12-17 ft, and winds of 25-35 kt are in the SW semicircle with seas of 10-14 ft. The post-tropical low is forecast to reach near 27.5N 122.5W this evening with winds diminishing to minimal gale force in the NE semicircle, and reach to near 28N124W by early Sat with minimal gale force winds within 90 nm of the center in the NE semicircle. The gale force winds are forecast to diminish below gale force by 36 hours as the low reaches near 28.5N125W. Earlier generated swells will continue to affect portions of the coasts of southwestern Mexico through tonight and the Baja California peninsula through Sat. Southerly swell has reached the coastal waters of southern California overnight and will produce large surf and strong rip current conditions there through Sat. Please consult products from your local weather office. See latest NHC forecast/advisory under AWIPS/WMO headers MIATCPEP3/WTPZ32 KNHC for more details. Tropical Storm Kristy is centered near 18.9N 129.8W MB at 1500 UTC, moving N or 10 degrees at 8 kt. Estimated minimum central pressure is 991 mb. Maximum sustained winds remain at 60 kt with gusts to 75 kt. Latest satellite imagery shows that the cyclone continues to maintain its current intensity, with numerous moderate to strong convection noted within 60 nm E and 30 nm W semicircles. Scattered moderate isolated strong convection is elsewhere within 90 nm of the center in the S semicircle. Kristy is expected to maintain is current intensity through this evening, then is forecast to begin to gradually weaken as it moves over cooler waters through the upcoming weekend. ...TROPICAL WAVES... A tropical wave axis is along 96W north of 05N moving westward at 10-15 kt. Scattered strong convection is west of the wave within 30 nm of a line from 12N96W to 11N98.5W. Scattered moderate isolated strong convection is within 180 nm east of the wave from 10N to 12N. A tropical wave axis is along 111W/112W from 04N to 17N, with low pressure along the axis at 11.5N112W. It is moving westward at 16 kt. Scattered moderate isolated strong convection is seen from 06N to 13N between 112W and 116W. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough axis extends from 09N75W TO 09N92W TO 09.5N102W to 10N111W where it terminates. The ITCZ axis extends from 11N139W to beyond 09N140W. Scattered strong convection is noted within 90 nm south of the axis between 79W-81W. Scattered moderate isolated strong convection is within 60 nm north of the axis between 88W and 92W. ...DISCUSSION... OFFSHORE WATERS WITHIN 250 NM OF MEXICO... See the Special Features section above for details on a gale warning associated with the Post-Tropical storm John remnant low. Gulf of Tehuantepec: Moderate to fresh northerly flow northerly nocturnal drainage flow is expected to continue downstream of the gulf this morning, reaching to near 13N, with seas reaching a peak of about 7 ft. Post-Tropical Storm John, now a gale center, is moving west- northwest away from the Baja California Peninsula. Swells propagating away from John are reaching the Baja California coastline and will continue through Sat. A weak ridge will build between John and Baja California Peninsula by Fri as the cyclone moves away from the offshore waters. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Gulf of Papagayo: Fresh northeast to east nocturnal winds will flow through the gulf tonight into early on Sun. Gentle to occasionally moderate east winds are forecast elsewhere N of the monsoon trough, with axis roughly along 09N/10N. Moderate to locally fresh S to SW winds are expected S of the trough through the end of this week. Seas in the range of 4-6 ft will generally prevail, except for 6-7 ft seas near the Galapagos Islands. These seas will increase over the weekend to 7-9 ft due to a large area of cross-equatorial SW swell. REMAINDER OF THE AREA... See the Special Features section above for details regarding post-Tropical Storm John now a gale center and on Tropical Storm Kristy, which will affect the waters N of 13N W of 110W during the next several days. Large swell will propagate well away from John through Friday. The areas of 8 ft seas generated by swell from John and Kristy will merge later today, with a large area of 8 ft seas likely enveloping most of the waters N of 15N and W of 110W through Sat. A ridge will dominate the NW portion of the area this weekend. The pressure gradient between John and high pressure to the NW will bring increasing winds across the NW part of the forecast area through the weekend. $$ Aguirre