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Tropical Center

Tropical Weather Discussion

Tropical Weather Discussion NWS National Hurricane Center Miami FL 530 UTC Tue Jun 27 2017 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 Dora is centered near 18.9N 109.2W at 27/0900 UTC moving west- northwest, or 295 degrees, at 10 kt. Estimated minimum central pressure is 989 mb. Maximum sustained wind speed is 70 kt with gusts to 85 kt. Scattered to numerous moderate convection was noted within 60 nm southeast semicircle of Dora, with scattered moderate convection noted within 30 nm northwest semicircle. Dora will continue on a west- northwest track while weakening over the next couple of days as the system moves over cooler waters and into a more stable environment. Dora is currently forecast to weaken to tropical storm intensity today, and further weaken to a remnant low Wednesday night. Large swell generated by Dora is expected to spread northward and affect portions of the coast of Baja California Sur today. See latest NHC Forecast/Advisory under AWIPS/WMO headers MIATCMEP4/WTPZ24 KNHC for more details. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 10N84W to 09N100W. It then resumes from 10N110W to 09N130W. The ITCZ extends from 09N130W to beyond 06N140W. Scattered moderate to isolated strong convection is noted from 05N to 10N between 90W and 100W. Scattered moderate convection was noted within 90 nm south of the monsoon trough between 112W and 120W. ...DISCUSSION... OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Outside of the influence of Dora...gentle to moderate winds prevail W of Baja California Norte with light to gentle winds off the coast of SW Mexico and across the Gulf of California. Seas are in the 1-3 ft range in the Gulf of California and 4-6 ft elsewhere. Little change is expected during the next several days. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Gentle to moderate SW to W winds are expected across most of the region, except for southerly winds between Ecuador and the Galapagos Islands. Long period SW swell propagating into the region will build seas up to 10 ft late today, with the exception of the lee of the Galapagos Islands. REMAINDER OF THE AREA... Light to gentle winds prevail from 10N to 20N between 120W and 130W, with gentle to moderate winds prevailing elsewhere. Seas are generally 4-7 ft. Winds and seas are expected to remain below advisory criteria through the remainder of the week.