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National Weather Service Today's Weather Impact Levels

 

National Weather Service Five Day Forecast for: San Juan, Puerto Rico  

Updated: 9:32 pm AST Jun 19, 2018 

Hazardous Weather Outlook
 

Overnight

Overnight: Isolated showers.  Mostly clear, with a low around 76. Southeast wind around 7 mph.  Chance of precipitation is 10%.
Isolated
Showers

Wednesday

Wednesday: Isolated showers, then scattered showers and thunderstorms after noon.  Mostly sunny, with a high near 92. Heat index values as high as 102. South southeast wind 9 to 15 mph.  Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
Isolated
Showers then
Scattered
Showers
Wednesday
Night
Wednesday Night: Scattered showers, mainly before midnight.  Partly cloudy, with a low around 77. East southeast wind 6 to 9 mph.  Chance of precipitation is 40%.
Scattered
Showers

Thursday

Thursday: Isolated showers.  Sunny, with a high near 90. East wind 11 to 16 mph.  Chance of precipitation is 10%.
Isolated
Showers

Thursday
Night
Thursday Night: Mostly clear, with a low around 77. East wind 7 to 14 mph.
Mostly Clear

Friday

Friday: Isolated showers, then scattered showers and thunderstorms after noon.  Mostly sunny, with a high near 88. East wind 15 to 17 mph.  Chance of precipitation is 50%.
Isolated
Showers then
Scattered
Showers
Friday
Night
Friday Night: Scattered showers.  Partly cloudy, with a low around 78. East southeast wind 11 to 13 mph.  Chance of precipitation is 30%.
Scattered
Showers

Saturday

Saturday: Showers likely, mainly after noon.  Partly sunny, with a high near 89. East wind around 16 mph.  Chance of precipitation is 60%.
Showers
Likely

Saturday
Night
Saturday Night: Scattered showers.  Partly cloudy, with a low around 78. East wind 11 to 13 mph.  Chance of precipitation is 30%.
Scattered
Showers

Lo 76 °FHi 92 °FLo 77 °FHi 90 °FLo 77 °FHi 88 °FLo 78 °FHi 89 °FLo 78 °F

National Weather Service Forecast Details

 

 

 

Caribbean Satellite

 

GRLevel3 Radar

  [10/10
GRLevel3 radar from NWS station TJUA

 

NWS San Juan TJUA Doppler Radar

 

TDWR TSJU RADAR

 

 

 

Weather Summary for Puerto Rico

000
AWCA82 TJSJ 192046
RWSPR

Weather Summary for Puerto Rico
National Weather Service San Juan PR
446 PM AST Tue Jun 19 2018

Partly to mostly cloudy skies prevailed across Puerto Rico today.
Some showers affected the eastern half of Puerto Rico this
morning. Showers with thunderstorms developed this afternoon
across the western interior and northwest sections of Puerto Rico.
Rainfall accumulations between one to two inches were observed.
Maximum temperatures were in the upper 80s to low 90s and the
winds were mainly from the east at 10 to 15 mph.

This activity was associated with the combination of a tropical
wave passing mainly south of the area and an upper level trough.
Lingering moisture associated with both systems will maintain high
chances for shower and thunderstorm development through Wednesday
afternoon. A drier airmass will encompass the region Wednesday
night into Thursday.

Seas of 3 to 5 feet with winds of 10 to 15 knots are expected
across the regional waters. Showers and thunderstorms are expected
to produce hazardous marine conditions from time to time through
Wednesday night.


$$

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.

NWS SJU Office Area Forecast Discussion

 

 

Tropical Weather Outlook

 

 

 

Satellite Imagery

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Long-wave Infrared Imagery for Atlantic Ocean (GOES16)

Courtesy of College of Dupage

 

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

 

Saharan Air Layer

 

Wind Shear Tendency

 

Sea Surface Temperatures

 

Sea Surface Temperatures Anomalies

 

 

 


 


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