NPWSJU) was issued for these areas. A broad surface high pressure over the central Atlantic will continue to promote southeasterly winds for the rest of the short term period. Embedded in this flow, weak trade wind perturbations will reach the islands each day and aid in the development of afternoon showers and isolated thunderstorms over western PR, and promote passing showers at times across the windward areas of the islands during the night and early morning hours. && .LONG TERM...Monday through Friday... Patches of moisture will move across the region by the beginning of the workweek through at least Wednesday. A surface high pressure building in the Central Atlantic will promote southeasterly winds, shifting from the east on Tuesday and returning from the southeast on Thursday night. Based on the latest model guidance, near above-normal PWAT values will gradually decrease through the forecast period. 500 mb temperatures will mostly be -6 and -5 degrees, and the Glvez- Davison Index suggests shallow convection during the afternoons. The combination of available moisture, diurnal heating, and local effects will promote showers and isolated thunderstorms each day, particularly in portions of eastern Puerto Rico in the morning and west/northwestern Puerto Rico in the afternoon. The best moisture content will be seen in the first part of the week, elevating the risk of excessive rainfall. Weather conditions will improve from Thursday onwards as patches of dry air move across the region. High temperatures are expected to range between the upper 80s and low 90s across the urban areas and lower elevations of the islands, with a limited heat risk for Puerto Rico and the U.S. Virgin Islands. && .AVIATION... (06Z TAFS) SHRA/TSRA increasing today due to sfc trof crossing the local area from the Anegada Passage. Tempo MVFR conds are possible across the USVI/Eastern PR terminals thru most of the fcst period. Mtn tops obscd expected ovr eastern PR. Additional, SHRA/TSRA expected in and around TJBQ btw 29/18z-22z. ESE winds will increase up to 12 knots with sea breeze variations at TJBQ aft 29/14z. && .MARINE... A surface induced trough will move across local waters today, increasing shower and thunderstorm activity. A surface high pressure building over the central Atlantic will promote moderate to locally fresh trade winds. A long period northeasterly swell continues spreading across the local waters and passages, deteriorating marine conditions for the next few days. && .BEACH FORECAST... A long period northeasterly swell will continue to spread across the local Atlantic waters today and into the weekend, deteriorating coastal conditions across exposed areas. A high risk of rip currents is in effect for the northern coastline of Puerto Rico, from Rincon to Ceiba, as well as for Vieques, Culebra, and the U.S. Virgin Islands. For more information, please refer to the latest Coastal Hazard Message (CFWSJU) and Surf Zone Forecast (SRFSJU). && .SJU WATCHES/WARNINGS/ADVISORIES... PR...High Rip Current Risk through Sunday afternoon for PRZ001-002- 005-008-012. Heat Advisory from 10 AM this morning to 5 PM AST this afternoon for PRZ003-007-011. High Rip Current Risk through this afternoon for PRZ010. High Rip Current Risk through Saturday afternoon for PRZ013. VI...High Rip Current Risk through Sunday afternoon for VIZ001-002. AM...None. && $$