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National Weather Service Today's Weather Impact Levels

 

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

Updated: 6:17 pm AST May 21, 2019 

Hazardous Weather Outlook
 

Today

Today: Scattered showers after noon.  Mostly sunny. Chance of precipitation is 30%.
Sunny then
Scattered
Showers
Tonight

Tonight: Scattered showers.  Partly cloudy. Chance of precipitation is 30%.
Scattered
Showers

Thursday

Thursday: Scattered showers, then showers likely and possibly a thunderstorm after noon.  Partly sunny. Chance of precipitation is 60%.
Scattered
Showers then
Showers
Likely
Thursday
Night
Thursday Night: Scattered showers, mainly after midnight.  Partly cloudy. Chance of precipitation is 30%.
Mostly Clear
then
Scattered
Showers
Friday

Friday: Scattered showers, then showers likely and possibly a thunderstorm after noon.  Partly sunny. Chance of precipitation is 60%.
Scattered
Showers then
Showers
Likely
Friday
Night
Friday Night: Scattered showers.  Partly cloudy. Chance of precipitation is 30%.
Scattered
Showers

Saturday

Saturday: Showers likely, mainly after noon.  Mostly cloudy. Chance of precipitation is 60%.
Scattered
Showers then
Showers
Likely
Saturday
Night
Saturday Night: Scattered showers.  Mostly cloudy. Chance of precipitation is 30%.
Scattered
Showers

Sunday

Sunday: Showers likely, mainly after noon.  Partly sunny. Chance of precipitation is 60%.
Mostly Sunny
then Showers
Likely

National Weather Service Forecast Details

 

 

 

Caribbean Sea Satellite

 

 

 

GRLevel3 radar images are not available at this time.

 

NWS San Juan TJUA Doppler Radar

 

Weather Summary for Puerto Rico

000
AWCA82 TJSJ 220817
RWSPR

Weather Summary for Puerto Rico
National Weather Service San Juan PR
417 AM AST Wed May 22 2019

Mostly clear skies in the west and partly cloudy skies in the
east prevailed during the overnight and early morning hours.
Radar Doppler detected showers streaming over the waters with a
few of them moving inland over portions of southeastern Puerto
Rico. Significant rainfall accumulations were not reported with
this activity. Overnight low temperatures dropped into the mid to
upper 70s across coastal areas and into the mid to upper 60s in
high elevations. Winds were light and variable.

Showers will continue to move from the waters into portions of
southern and eastern Puerto Rico through the morning hours, moving
further inland as the day progresses. Then, shower activity
accompanied by isolated thunderstorms is expected to shift and
cluster across portions of the interior and western Puerto Rico in
the afternoon. Showers moving over the San Juan metropolitan
area cannot be ruled out. Favorable upper level conditions and
plenty of tropical moisture will support the development of deep
afternoon convection, resulting in rainfall accumulations up to an
inch and a half with isolated higher amounts. As a result, there
is an increasing potential for urban and small stream flooding,
particularly across the northwestern quadrant of the island.
Daytime high temperatures are forecast to peak in the upper 80s to
low 90s across coastal areas under an east-southeast surface wind
flow between 10-15 mph and higher gusts.

Across the regional waters and local passages, seas are expected
to remain at 4 feet or below. East to southeast winds will
continue between 10 to 15 knots. There is a moderate risk of rip
currents for the north facing beaches of Puerto Rico.

$$

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

 

 

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