029 AXPZ20 KNHC 300905 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1005 UTC Thu Aug 30 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 0600 UTC surface analysis and satellite imagery through 0900 UTC. ...SPECIAL FEATURES... Hurricane Norman centered near 17.8N 117.4W at 0900 UTC, moving W at 6 kt. Estimated minimum central pressure is 964 mb. It has rapidly intensified duruing the past 6 to 12 hours, and maximum sustained winds are now 100 kt with gusts to 120 kt. Numerous moderate to strong convection is within 120 nm of the center. Scattered moderate convection elsewhere within 180 nm N and 270 nm S of the center. See latest NHC forecast/advisory under AWIPS/WMO headers MIATCMEP1/WTPZ21 KNHC for more details. Hurricane Miriam centered west of the area near 14.7N 141.1W at 0900 UTC, moving WNW at 7 kt. Estimated minimum central pressure is 985 mb. Maximum sustained winds are 70 kt with gusts to 85 kt. Numerous moderate isolated strong convection is from 14N to 16N west of 138W. Scattered moderate convection elsewhere within 180 nm E of the center. See latest CPHC forecast/advisory under AWIPS/WMO headers TCMCP3/WTPA23 PHFO for more details. ...TROPICAL WAVES... A tropical wave axis north of 06N along 93W is moving westward at 15 kt. The wave is producing scattered showers near the monsoon trough axis. A tropical wave axis from 06N to 17N along 107W is moving westward at 10 to 15 kt. Scattered moderate isolated strong convection is from 09N to 15N between 106W and 110W. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough axis extends from 09N84W to 09N90W to 12N110W to 14N112W, then resumes west of Hurricane Norman near 15N122W to 14N137W. Aside from convection associated with tropical waves, scattered moderate convection is from 04N to 08N east of 89W, and within 60 nm S of the trough axis between 120W and 127W. ...DISCUSSION... OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A ridge extends over the discussion waters from 30N130W to near 21N112W. The pressure gradient between the high and a trough across the Baja California Peninsula will support moderate to occasionally fresh NW winds along the coast of Baja California Norte through Fri, with seas generally between 4 to 6 ft. Winds will diminish ]Sat as the pressure gradient weakens. Elsewhere, gentle to moderate winds will prevail in offshore waters of Mexico the next several days with seas of 3 to 6 ft. Low pressure over northern Mexico will support light to gentle southerly flow over the Gulf of California the remainder of the week. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... The monsoon trough will linger along 09N/10N during the next few days. Winds on both sides of the trough axis will generally be light to moderate. Seas of 4 to 6 feet can be expected. REMAINDER OF THE AREA... Please see the Special Features section for information on Hurricane Miriam and Hurricane Norman. Elsewhere, the pressure gradient between ridging across the waters N of 20N and the monsoon trough will support moderate to locally fresh trades and 4 to 7 ft seas in mixed swell N of the monsoon trough west of 120W through the remainder of the week, with seas generally between 5 and 7 ft. South of the monsoon trough, expect gentle to moderate winds with seas of 5 to 7 ft. $$ Mundell