Since 2001 providing the latest information on tropical cyclone activity in the Atlantic Basin and the weather conditions in Puerto Rico.      
 
 

Atlantic Hurricane Season 2017 Storm Names

| Arlene | Bret | Cindy | Don | Emily | Franklin | Gert | Harvey | Irma | Jose | Katia | Lee | Maria | Nate | Ophelia | Philippe | Rina | Sean | Tammy | Vince | Whitney |

Click on the county or coastal water zone of interest to get the latest forecast from the National Weather Service.

National Weather Service Forecast for: San Juan, Puerto Rico  

Updated: 7:18 pm AST Aug 18, 2017 

Rip Current Statement
Hazardous Weather Outlook
 

Tonight

Tonight: Isolated showers.  Partly cloudy, with a low around 79. East northeast wind around 17 mph.  Chance of precipitation is 20%.Isolated
Showers
Saturday

Saturday: Scattered showers, with thunderstorms also possible after noon.  Partly sunny, with a high near 90. Heat index values as high as 105. East wind around 18 mph.  Chance of precipitation is 40%.Scattered
Showers
Saturday
Night
Saturday Night: Scattered showers.  Mostly cloudy, with a low around 78. East wind 7 to 13 mph.  Chance of precipitation is 40%.Scattered
Showers
Sunday

Sunday: Scattered showers and thunderstorms.  Partly sunny, with a high near 89. Heat index values as high as 102. East southeast wind 7 to 14 mph.  Chance of precipitation is 50%.Scattered
Showers
Sunday
Night
Sunday Night: Scattered showers and thunderstorms.  Mostly cloudy, with a low around 78. East wind 9 to 11 mph.  Chance of precipitation is 30%.Scattered
Showers
Monday

Monday: Scattered showers.  Mostly sunny, with a high near 88. East wind 10 to 16 mph.  Chance of precipitation is 40%.Scattered
Showers
Monday
Night
Monday Night: Scattered showers.  Partly cloudy, with a low around 78. East northeast wind 9 to 11 mph.  Chance of precipitation is 30%.Scattered
Showers
Tuesday

Tuesday: Scattered showers.  Mostly sunny, with a high near 88. Northeast wind around 10 mph.  Chance of precipitation is 30%.Scattered
Showers
Tuesday
Night
Tuesday Night: Scattered showers.  Mostly cloudy, with a low around 79. Light and variable wind.  Chance of precipitation is 50%.Scattered
Showers
Lo 79 °FHi 90 °FLo 78 °FHi 89 °FLo 78 °FHi 88 °FLo 78 °FHi 88 °FLo 79 °F

National Weather Service Forecast Details

 

 

HARVEY

 

 

Forecasting Models

 

INVEST 92L

 

Forecasting Models

 

Caribbean Sea


GRLevel3 Radar

  [10/10
GRLevel3 radar from NWS station TJUA

 

Local Radar

 

Weather Summary for Puerto Rico

000
AWCA82 TJSJ 182056
RWSPR

Weather Summary for Puerto Rico
National Weather Service San Juan PR
456 PM AST Fri Aug 18 2017

Partly cloudy skies prevailed across the local islands and
surrounding waters this afternoon. Doppler radar indicated not
significant shower activity anywhere over land areas or across
the surrounding coastal waters so far this afternoon. Mid to high
level cloudiness associated with the tropical storm Harvey,
across the eastern Caribbean will continue to spread across the
region tonight and Saturday. Harvey will continue to move westward
tonight, passing at about 250 nautical miles south of Puerto Rico
tomorrow morning. Winds were mostly from the east northeast at 10
to 15 mph with some higher gusts. Maximum temperatures this
afternoon were mostly in the upper 80s.

Dry air with suspended Saharan dust particles will continue to
encompass the region until at least tonight. In addition, a ridge
aloft is expected to limit shower activity across the local
islands overnight through early Saturday. Although no direct
impact of Harvey is expected across the local region, the
available moisture is expected to increase on Saturday. This
moisture in combination with daytime heating and local effects
will result in shower and thunderstorm activity across the region
on Saturday. Soils are already saturated, especially across east
and southeast Puerto Rico, and any significant or persistent
shower or thunderstorm activity would lead to flooding or even mud
slides during the weekend.

Mariners can expect seas between 5 to 7 feet with occasional seas
up to 9 feet and winds 15 to 20 knots. Therefore, small Crafts
Advisories are in effect. In addition, there is a high rip
current risk across most of the beaches in PR.

$$

This product is issued around 5 AM and 5 PM each day and weather
conditions may change between issuances. Please verify the status
of any Watches...Warnings or Advisories mentioned in this product.
 

 

Tropical Weather Outlook

 

 

Satellite Imagery

alt

Select a map type to view:

 

Atlantic Wide View (Click Image for Loop)

 

Global Tropics Hazards and Benefits Outlook (Click image for more details)

 

Saharan Air Layer

 

Wind Shear Tendency

 

Sea Surface Temperatures Anomalies

 

 


Guestbook  

 

free web stats
 

Visits since November 23, 2005
   
   

Contact © 2017, WeatherPR.com