000 AXPZ20 KNHC 090901 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 723 UTC Sat Jul 9 2016 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. Recently downgraded Tropical Storm Blas is centered near 19.5N 131.7 at 0900 UTC Jul 09. Blas is moving northwest or 310 deg at 8 kt. Maximum sustained winds have diminished to 60 kt with gusts to 75 kt. Estimated minimum central pressure is 992 mb. Scattered moderate to strong convection is noted within 75 nm of the center of Blas. Scattered moderate to isolated strong convection is noted elsewhere from 18N to 22N between 129W and 133W. Blas will continue over cooler SST's and a more stable environment. The latest NHC advisory forecasts Blas to weaken to a remnant low Sunday. Refer to latest NHC public advisory under AWIPS/WMO headers MIATCPEP3/WTPZ33 KNHC and the full forecast advisory under AWIPS/WMO headers MIATCMEP3/WTPZ23 KNHC for additional details. Tropical Storm Celia is centered near 14.2N 115.8W at 0900 UTC Jul 09. Celia is moving west-northwest or 290 deg at 11 kt. Maximum sustained winds are 35 kt with gusts to 45 kt. Estimated minimum central pressure is 1005 mb. Scattered moderate to strong convection was noted within 90 nm northwest quadrant of the center. Scattered moderate isolated strong convection was noted elsewhere from 08N to 19N between 110W and 120W. The latest NHC advisory indicates Celia intensifying to hurricane strength Sunday night. Refer to latest NHC public advisory under AWIPS/WMO headers MIATCPEP4/WTPZ34 KNHC and the full forecast advisory under AWIPS/WMO headers MIATCMEP4/WTPZ24 KNHC for additional details. ...Tropical Waves... The axis of a tropical wave is located near 89W north of 08N, and extending over western Honduras. Scattered moderate isolated strong convection was noted within 180 nm west of the tropical wave and north of 12N. The axis of a tropical wave is located near 99W north of 06N into southern Mexico. Scattered moderate to isolated strong convection is noted from 07N to 13N between 95W and 101W. ..INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 08N78W to 10N88W to 09.5N98W to 10N103W. Scattered moderate isolated strong convection is noted within 120 nm south of the monsoon trough between 88W and 92W. ...DISCUSSION... North of 15N east of 120W: Celia will skirt the far southwest portion of this area. See above for more on Celia. Elsewhere a ridge extending from the north central Pacific to southwest of the Baja California peninsula near 22N113W will maintain gentle to moderate winds across the region north of 20N through Saturday. South of 15N east of 120W: Tropical Storm Celia is moving through the waters west of 110W. See above for more on Tropical Storm Celia. Winds will continue pulsing over the Gulf of Papagayo for at least the next several days. Winds will peak near 20 kt during the overnight hours with the added component of nocturnal drainage flow. West of 120W: See the special features section above for details on Tropical Storm Blas and on Tropical Storm Celia. A large area of seas 8 ft or greater have expanded outward from Blas to cover much of the area north of 10N and west of 128W. As Blas continues to weaken, coverage of seas 8 ft or greater will decrease. Celia will continue developing and move across this region during the first half of next week. As it does, the coverage of seas 8 ft or greater will increase once again. $$ AL