250  
FNCA72 TJSJ 020757  
FWSSJU  
 
SPOT FORECAST FOR VIP TOUR...EL YUNQUE NF  
NATIONAL WEATHER SERVICE SAN JUAN PR  
357 AM AST MON JUL 2 2018  
 
FORECAST IS BASED ON FORECAST START TIME OF 0700 AST ON JULY 03.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
QUESTIONS OR CONCERNS ABOUT THIS FORECAST, CONTACT (787) 253-4501.  
   
DISCUSSION
 
FOR TUESDAY, DRIER THAN NORMAL AIRMASS IS EXPECTED ACROSS  
THE LOCAL ISLANDS. SAHARAN DUST WILL BE PRESENT, WHICH WILL CONTINUE  
TO CAUSE HAZY SKIES. THE CHANCES OF RAIN ARE SLIGHT, AT MOST ONLY BRIEF  
AND LIGHT SHOWERS ARE POSSIBLE ON TUESDAY MORNING, AND DRY  
CONDITIONS WITH HAZE EXPECTED THEREAFTER. FOR TUESDAY AND THE REST  
OF THE WORKWEEK, THE BIG STORY REALLY IS THE SAHARAN DUST WHICH  
WILL CONTINUE TO CAUSE HAZE ACROSS THE LOCAL AREA FOR THE NEXT  
SEVERAL DAYS WITH LITTLE TO NO RAIN.  
   
TUESDAY
 
 
SKY/WEATHER.........SUNNY (15-25 PERCENT). HAZE.  
CHANCE OF PCPN......10 PERCENT.  
MAX TEMPERATURE.....AROUND 85.  
MIN HUMIDITY........67 PERCENT.  
SURFACE WINDS.......EAST WINDS 12 TO 15 MPH.  
WIND (20 FT)........  
SLOPE/VALLEY.......EAST WINDS 12 TO 15 MPH.  
 
TIME (AST) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........20 20 20 20 20 20 20 20 20 20 20  
WEATHER COV.....DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF  
WEATHER TYPE....HAZ HAZ HAZ HAZ HAZ HAZ HAZ HAZ HAZ HAZ HAZ  
TSTM COV........  
CHC OF PCPN (%).10 10 10 10 10 10 10 10 10 10 10  
TEMP............78 80 81 82 83 84 85 85 84 83 81  
RH..............84 81 78 75 72 69 68 67 68 70 72  
20 FT WIND DIR..SE SE E E E E E E E E E  
20 FT WIND SPD..11 12 12 13 13 13 13 13 13 13 13  
20 FT WIND GUST.12 13 13 14 14 14 14 14 14 14 14  
SURFACE WND DIR.SE SE E E E E E E E E E  
SURFACE WND SPD.14 15 15 16 16 16 16 16 16 16 16  
SURFACE WND GST.15 16 16 17 17 17 17 17 17 17 17  
   
TUESDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT). HAZE THROUGH THE  
NIGHT.  
CHANCE OF PCPN......10 PERCENT.  
MIN TEMPERATURE.....AROUND 75.  
MAX HUMIDITY........85 PERCENT.  
SURFACE WINDS.......EAST WINDS 10 TO 13 MPH.  
WIND (20 FT)........  
SLOPE/VALLEY.......EAST WINDS 10 TO 13 MPH.  
 
TIME (AST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........5 5 5 5 5 5 20 20 20 20 20 20  
WEATHER COV.....DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF  
WEATHER TYPE....HAZ HAZ HAZ HAZ HAZ HAZ HAZ HAZ HAZ HAZ HAZ HAZ  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0 10 10 10 10 10 10  
TEMP............80 78 77 76 76 76 77 77 78 78 77 77  
RH..............75 78 80 82 84 85 85 85 85 84 83 82  
20 FT WIND DIR..E E E E E E E E E E E E  
20 FT WIND SPD..12 11 10 10 10 11 11 11 10 10 10 10  
20 FT WIND GUST.13 12 11 11 11 12 12 12 11 11 11 11  
SURFACE WND DIR.E E E E E E E E E E E E  
SURFACE WND SPD.15 14 13 13 13 14 14 14 13 13 13 13  
SURFACE WND GST.16 15 14 14 14 15 15 15 14 14 14 14  
 

 
FORECASTER...ALAMO  
REQUESTED BY...MIKE POPE  
TYPE OF REQUEST...OTHER  
.TAG 1812131.0/SJU  
.DELDT 07/02/18  
.EMAIL MICHEALPOPE@FS.FED.US  
 
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