166  
FNCA72 TJSJ 041053  
FWSSJU  
 
SPOT FORECAST FOR WATER TANK WILDFIRE...PUERTO RICO FIRE DEPT.  
NATIONAL WEATHER SERVICE SAN JUAN PR  
653 AM AST THU MAR 4 2021  
 
FORECAST IS BASED ON FORECAST START TIME OF 0700 AST ON MARCH 04.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
QUESTIONS OR CONCERNS ABOUT THIS FORECAST, CONTACT (787) 253-4501.  
   
DISCUSSION
 
FAIR WEATHER EXPECTED TODAY AS BELOW NORMAL MOISTURE  
ENCOMPASSES THE LOCAL AREA. THE WINDS WILL BE FROM THE SOUTHEAST AND  
RELATIVELY LIGHT, AT AROUND 10 MPH. THE KBDI OBSERVED AT MARICAO  
WAS 613 WITH A 10-HR FUEL MOISTURE OF 10%.  
   
REST OF TODAY
 
 
SKY/WEATHER.........SUNNY (10-20 PERCENT).  
CHANCE OF PCPN......10 PERCENT.  
LAL.................NO TSTMS.  
MAX TEMPERATURE.....AROUND 76.  
MIN HUMIDITY........48 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......SOUTHEAST WINDS 5 TO 6 MPH SHIFTING TO THE EAST  
AROUND 5 MPH LATE IN THE AFTERNOON, THEN  
BECOMING LIGHT LATE IN THE AFTERNOON.  
MIXING HEIGHT.......6500 FT AGL.  
TRANSPORT WINDS.....SOUTH 6 TO 9 MPH.  
SMOKE DISPERSAL.....POOR (0 KNOT-FT) EARLY IN THE MORNING  
INCREASING TO GOOD (47600 KNOT-FT) IN THE  
AFTERNOON.  
DISPERSION..........6.  
 
TIME (AST) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........5 5 5 5 5 20 20 20 20 20 20  
WEATHER COV..... ISO ISO ISO ISO ISO ISO  
WEATHER TYPE.... RW RW RW RW RW RW  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 10 10 10 10 10 10  
LAL.............1 1 1 1 1 1 1 1 1 1 1  
TEMP............67 69 71 73 74 75 76 76 76 75 74  
RH..............73 68 63 57 53 50 48 48 48 50 53  
20 FT WIND DIR..E SE SE S S S S S SE E NE  
20 FT WIND SPD..5 5 5 6 6 6 6 6 5 5 4  
20 FT WIND GUST.6 6 6 6 6 5  
MIX HGT (KFT)...0.1 0.4 2.1 4.2 5.9 6.5 6.5 6.0 5.4 4.4 3.3  
MIXNG WIND DIR..E E E SE S S SE SE SE S S  
MIXNG WIND SPD..6 6 7 7 8 9 9 9 9 8 7  
DISPERSION......5 5 6 6 6 6 6 6 6 6 6  
VRATE KT-FT/10000 3 15 32 48 38 20 8 6 6 6  
   
TONIGHT
 
 
SKY/WEATHER.........CLEAR (0-10 PERCENT).  
CHANCE OF PCPN......0 PERCENT.  
LAL.................NO TSTMS.  
MIN TEMPERATURE.....AROUND 69.  
MAX HUMIDITY........78 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......LIGHT WINDS BECOMING SOUTHEAST 5 TO 6 MPH LATE  
IN THE EVENING.  
MIXING HEIGHT.......0 FT AGL.  
TRANSPORT WINDS.....EAST 5 TO 7 MPH.  
SMOKE DISPERSAL.....POOR (0 KNOT-FT).  
DISPERSION..........3.  
 
TIME (AST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........5 5 5 5 5 5 5 5 5 5 5 5  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0  
LAL.............1 1 1 1 1 1 1 1 1 1 1 1  
TEMP............73 72 72 71 71 70 70 70 69 69 69 69  
RH..............59 64 68 73 76 78 78 76 76 73 70 68  
20 FT WIND DIR..NE NE NE E E SE SE SE SE SE SE SE  
20 FT WIND SPD..4 4 4 4 4 5 5 5 5 6 6 6  
20 FT WIND GUST.5 5 5 5 5 6 6 6 6  
MIX HGT (KFT)...2.1 0.9 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1  
MIXNG WIND DIR..SE SE E E E E E E E E E E  
MIXNG WIND SPD..7 6 5 5 5 6 6 6 5 5 5 5  
DISPERSION......2 2 2 2 2 2 2 3 3 3 3 3  
VRATE KT-FT/10004 2 0 0 0 0 0 1 1 0 0 1  
   
FRIDAY
 
 
SKY/WEATHER.........SUNNY (20-30 PERCENT). ISOLATED SHOWERS IN THE  
AFTERNOON.  
CHANCE OF PCPN......20 PERCENT.  
LAL.................NO TSTMS.  
MAX TEMPERATURE.....AROUND 76.  
MIN HUMIDITY........48 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......SOUTHEAST WINDS 5 TO 6 MPH.  
MIXING HEIGHT.......6400 FT AGL.  
TRANSPORT WINDS.....EAST 5 TO 7 MPH.  
SMOKE DISPERSAL.....POOR (0 KNOT-FT) EARLY IN THE MORNING  
INCREASING TO GOOD (34800 KNOT-FT) IN THE  
AFTERNOON.  
DISPERSION..........6.  
 
TIME (AST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........5 5 5 5 5 5 40 40 40 40 40 40  
WEATHER COV..... ISO ISO ISO ISO ISO ISO  
WEATHER TYPE.... RW RW RW RW RW RW  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0 20 20 20 20 20 20  
LAL.............1 1 1 1 1 1 1 1 1 1 1 1  
TEMP............70 71 72 73 74 75 76 76 76 76 75 74  
RH..............63 59 55 51 50 48 48 52 54 56 60 62  
20 FT WIND DIR..SE SE SE SE SE SE SE SE SE SE SE SE  
20 FT WIND SPD..6 6 6 6 6 5 5 5 6 5 5 5  
20 FT WIND GUST. 6 6 6 6 6 6  
MIX HGT (KFT)...0.1 0.1 0.4 1.9 3.7 5.3 6.1 6.4 6.1 5.2 4.0 2.7  
MIXNG WIND DIR..E E E SE SE SE SE SE SE SE E NE  
MIXNG WIND SPD..5 6 6 7 7 7 7 6 6 6 6 6  
DISPERSION......5 5 5 6 6 6 6 6 6 6 6 6  
VRATE KT-FT/10000 0 3 13 25 35 25 12 6 11 14 16  
 

 
FORECASTER...ALAMO  
REQUESTED BY...JOSE M. MARTINEZ  
TYPE OF REQUEST...WILDFIRE  
.TAG 2103687.0/SJU  
.DELDT 03/04/21  
.FORMATTERVERSION 1.0.26  
.EMAIL FIREJUMBO76@HOTMAIL.COM  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab PR Page Main Text Page