Flash Flood Watch in effect through late tonight...
Tonight
Variably cloudy with scattered showers in the evening... then partly cloudy with isolated showers after midnight. Lows 81 lower elevations ranging to 62 higher elevations. South winds 5 to 15 mph. Chance of rain 40 percent.
Tuesday
Partly cloudy in the morning then becoming mostly cloudy. Isolated showers in the morning. Scattered thunderstorms in the late morning and afternoon. Numerous showers in the afternoon. Highs 92 lower elevations ranging to 76 higher elevations. South winds 5 to 15 mph. Chance of rain 60 percent.
Variably cloudy with scattered showers and isolated thunderstorms in the evening...then partly cloudy with isolated showers after midnight. Lows 81 lower elevations ranging to 63 higher elevations. South winds up to 5 mph. Chance of rain 50 percent.
Wednesday
Variably cloudy in the morning then becoming partly cloudy. Isolated showers. Highs 90 lower elevations ranging to 75 higher elevations. South winds up to 5 mph shifting to the west in the afternoon. Chance of rain 20 percent.
Partly cloudy. Isolated showers in the evening. Lows 81 lower elevations ranging to 63 higher elevations. Northeast winds up to 5 mph shifting to the southeast after midnight. Chance of rain 20 percent.
Thursday
Partly cloudy. Isolated showers in the afternoon. Highs 91 lower elevations ranging to 76 higher elevations. Chance of rain 20 percent.
Partly cloudy in the morning...then variably cloudy with isolated showers in the afternoon. Highs 92 lower elevations ranging to 77 higher elevations. Chance of rain 20 percent.
Mostly sunny in the morning...then partly cloudy with scattered showers in the afternoon. Highs 92 lower elevations ranging to 77 higher elevations. Chance of rain 40 percent.
Saturday Night
Partly cloudy with isolated showers. Lows 81 lower elevations ranging to 63 higher elevations. Chance of rain less than 20 percent.
Sunday
Partly cloudy with isolated showers in the morning...then variably cloudy with scattered showers and isolated thunderstorms in the afternoon. Highs 92 lower elevations ranging to 77 higher elevations. Chance of rain 50 percent.
Partly cloudy in the morning...then variably cloudy with scattered showers and isolated thunderstorms in the afternoon. Highs 92 lower elevations ranging to 77 higher elevations. Chance of rain 40 percent.
... Flash Flood Watch now in effect through late tonight...
The Flash Flood Watch is now in effect for
* portions of Puerto Rico and Virgin Islands... including the following areas... in Puerto Rico... central interior... Culebra... eastern interior... Mayaguez and vicinity... north Central... Northeast... northwest... Ponce and vicinity... San Juan and vicinity... southeast... southwest... Vieques and western interior. In Virgin Islands... St Croix and St. Thomas/St. John/adjacent islands.
* Through late tonight
* a deep trough extending from the surface to the upper levels of the atmosphere in combination with deep moisture will continue to favor the development of numerous showers and thunderstorms throughout the day. The heaviest rainfall is expected across the St. Thomas and St. Johns through noon today. Additional thunderstorm development is likely across northern sections of Puerto Rico later this afternoon as daytime heating helps destabilize atmosphere.
* Flooding may cause local rivers to rise rapidly especially along the north coast... north coastal plains and northern foothills. Flash flooding is also occurring in St. Thomas and St. Jonhs.
Precautionary/preparedness actions...
A Flash Flood Watch means that conditions are favorable for heavy rain across the watch area... which may lead to flooding. If you are in the watch area... check your preparedness requirements... especially if you have interests along area rivers. Keep informed... and be ready for quick action if flooding is observed or if a Flash Flood Warning is issued.
People in the watch area should continue to be aware of the possibility for heavy rainfall. Avoid low lying areas... and be careful when approaching Highway dips and underpasses. The heavy rain could also cause mudslides in areas of steep terrain.
Stay tuned to NOAA Weather Radio... local TV... radio or your cable television provider for later statements and possible warnings.
This product... along with other weather... hydrological and climate information... is available on the web at http://www.Srh.NOAA.Gov/sju or at http://weather.Gov.