Flash Flood Watch in effect until 6 am AST Tuesday...
Rest of Tonight
Variably cloudy late in the evening then becoming partly cloudy. Scattered showers and isolated thunderstorms late in the evening...then scattered showers after midnight. Lows 81 lower elevations ranging to 62 higher elevations. Southeast winds 5 to 15 mph. Chance of rain 50 percent.
Tuesday
Partly cloudy in the morning then becoming mostly cloudy. Scattered 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.
The National Weather Service in San Juan has issued a
* Flash Flood Warning for... the following municipalities
in Puerto Rico Hormigueros San German Cabo Rojo Mayaguez
* until 245 am AST
* at 1141 PM AST... National Weather Service Doppler radar indicated moderate to heavy rain was falling over the warned area. Residents should expect flooding
For the Rio guanajibo near Hormigueros - horp4 where the flood stage is 20 feet. At 1141 PM AST the USGS sensor indicated the river had risen to... 18.72 feet. Minor flooding is forecast before 12:30 am Tuesday.
Do not underestimate the power of flood waters. Only a few inches of rapidly flowing water can quickly carry away your vehicle.
Precautionary/preparedness actions...
Be especially cautious at night when it is harder to recognize the dangers of flooding. If flash flooding is observed act quickly. Move up to higher ground to escape flood waters. Do not stay in areas subject to flooding when water begins rising.
A Flash Flood Warning means that flooding is imminent or occurring. If you are in the warning area move to higher ground immediately. Residents living along streams and creeks should take immediate precautions to protect life and property. Do not attempt to cross swiftly flowing waters or waters of unknown depth by foot or by automobile.
Additional information can be found at /use lower case letters/: http://www.Weather.Gov/sanjuan
Flash Flood Watch
Statement as of 9:57 PM AST on November 16, 2009
... Flash Flood Watch remains in effect until 6 am AST Tuesday...
The Flash Flood Watch continues 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.
* Until 6 am AST Tuesday
* a line of showers and thundertorms developed over the local Atlantic waters this evening. This line will continue to move towards the southeast... generating showers and thunderstorms across the local islands. Saturated soils conditions will increase the flooding and landslide potential across the local islands through Tuesday morning.
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.