000 AXPZ20 KNHC 060313 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 221 UTC Wed Feb 6 2019 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 0000 UTC surface analysis and satellite imagery through 0245 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A trough extends from a 1007 mb low centered over NW Colombia near 06N76W to 03N80W to 04N83W. The ITCZ continues from 04N83W to 05N85W to 03N115W to 04N128W to beyond 07N140W. Scattered moderate convection is seen from 04N to 07N between 104W and 110W. ...DISCUSSION... OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A cold front curves W from the northern Gulf of California near 31.5N113.5W to the E coast of Baja California Norte near 30N114.5W to the W coast of Baja California Norte near 29.5N115W to 24N123W, then continues as a weakening cold front to 23N130W to 24N140W. NW swell generated N of this front are supporting seas of 7 to 9 ft N of 27N. Seas of 8 to 13 ft behind this front will cause seas to build to between 8 and 12 feet for the waters off Baja California Norte N of 23N by Wed evening. Seas in this area will then subside to less than 8 ft by Fri evening as NW swell decay. For the Gulf of California, the cold front will support strong SW winds over the waters N of 29.5N. Strong winds N of 30N will become W of SW as the weakening front heads SE to near 28.5N. Strong winds will subside by Wed evening as the cold front weakens/moves E across northern Mexico. A ridge will start to build over central California on Wed morning, thus supporting NW strong to near gale force winds N of 29.5N. A new ridge will build over the Great Basin by Thu and induce strong NW winds in much of the central and southern Gulf Thu and Fri. Farther south, for the coast of Mexico S of Cabo Corrientes, gentle NW flow and slight to moderate seas will persist through this weekend. Looking ahead, strong gap winds will commence Fri morning in Gulf of Tehuantepec in response to high pressure building behind a cold front moving into southern Mexico. Gap winds may reach strong gale force by Fri night with downstream seas peaking between 17 and 20 ft Sat night and Sun morning. A large area of 8 ft seas will develop westward from the Gulfs of Papagayo and Tehuantepec between 02N and 16N to beyond 120W by Saturday night. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Gulf of Papagayo: High pres over the western Caribbean will cause winds over the Gulf of Papagayo to increase to near gale force during the overnight and early morning hours tonight through Fri night, then gales will be possible Sat night and Sun night. Gulf of Panama: Strong to near gale force N to NE winds could affect the Gulf of Panama Fri through Sun night with sea heights building to 11 ft over the weekend. Elsewhere, gentle to moderate breezes will persist through Sun. REMAINDER OF THE AREA... Moderate N to NE winds prevail behind a cold frontal boundary reaching from 29.5N115W to 24N123W to 23N130W to 24N140W. Long period NW swell follows this front with building seas to 14 ft north of 25N through Wed. The front has begun weakening and will dissipate over the forecast waters by Wed evening. Strong high pressure will build north of the area behind the cold front. The gradient between the strong high and developing low pressure north of Hawaii will support fresh to strong easterly winds from 07N to 16N W of 122W Wed night through Fri. Long period SW swell will cause combined seas to build to 8 ft S of 02N between 100W and 120W by Thu evening. Seas in this area will remain near 8 ft through Sat night. $$ CAM