007  
FOCA52 TJSJ 121928  
PFMSJU  
 
POINT FORECAST MATRICES  
NATIONAL WEATHER SERVICE SAN JUAN PR  
328 PM AST MON APR 12 2021  
 
PRZ001-130815-  
LUIS MUNOZ MARIN INTERNATIONAL AIRPORT-SAN JUAN  
18.43N 66.00W ELEV. 9 FT  
328 PM AST MON APR 12 2021  
 
DATE 04/12/21 TUE 04/13/21 WED 04/14/21 THU  
AST 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 73 88 74 87 74  
TEMP 82 77 75 74 74 81 86 88 84 79 77 75 75 81 86 87 83 79 77 75 75 82  
DEWPT 65 66 67 67 68 68 69 71 71 71 70 70 70 70 67 67 66 68 69 69 69 70  
RH 56 69 76 79 82 65 57 57 65 77 79 84 84 69 53 52 57 69 76 82 82 67  
WIND DIR E E SE S S W NE NE N N NE N NW NW NW N N N N N N N  
WIND SPD 12 9 5 4 3 2 5 6 5 3 3 2 3 4 6 8 9 10 8 6 8 9  
CLOUDS FW FW FW FW FW FW FW B2 B2 B1 SC SC SC SC SC B1 B1 B2 B2 B2 B2 SC  
POP 12HR 5 60 40 50 50  
QPF 12HR 0.01 0.56 0.08 0.12 0.11  
RAIN SHWRS C L C S S S S S C C C C C C C  
TSTMS S S S S S S  
HEAT INDEX 83 84 90 94 89 82 85 88 90 86 86  
MAX HEAT 86 84 94 94 85 90 89 86  
 
DATE 04/15 FRI 04/16/21 SAT 04/17/21 SUN 04/18/21 MON 04/19/21  
AST 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 88 76 90 75 91 77 88 77 88  
TEMP 88 80 77 84 90 80 76 84 91 82 78 83 88 81 78 83 88 81  
DEWPT 69 70 70 71 71 72 72 70 69 70 70 70 69 72 71 70 67 70  
PWIND DIR NE SE E SE SE SE SE SE E  
WIND CHAR GN LT GN GN GN LT GN GN GN  
AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC  
POP 12HR 50 40 40 40 40 20 30 30 30  
RAIN SHWRS C C C C C C C C C C S S C C S C C C  
TSTMS S S  
 

 
 
PRZ002-130815-  
ROOSEVELT ROADS NAVAL AIRSTATION-CEIBA PR  
18.25N 65.63W ELEV. 39 FT  
328 PM AST MON APR 12 2021  
 
DATE 04/12/21 TUE 04/13/21 WED 04/14/21 THU  
AST 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 71 86 72 85 73  
TEMP 80 76 74 72 72 79 84 86 82 77 75 73 73 79 84 85 82 77 75 74 74 80  
DEWPT 66 67 68 68 69 70 71 71 71 71 70 70 70 71 70 70 67 68 69 69 69 70  
RH 62 74 82 87 90 74 65 61 69 82 84 90 90 77 63 61 61 74 82 84 84 72  
WIND DIR E SE SE SE E NE NW E NE N NE N N N N N N N N N N N  
WIND SPD 10 8 8 5 3 4 5 10 5 6 8 5 3 5 6 9 10 11 10 9 10 11  
CLOUDS FW FW FW FW FW SC SC B2 B2 B1 SC SC SC SC SC SC SC B1 B1 B1 B1 B1  
POP 12HR 20 60 40 40 40  
QPF 12HR 0.02 0.58 0.11 0.11 0.11  
RAIN SHWRS S S C L C C C C S S C C C C C C C  
HEAT INDEX 82 82 89 91 86 82 88 90 84 83  
MAX HEAT 85 82 92 91 82 90 88 83  
 
DATE 04/15 FRI 04/16/21 SAT 04/17/21 SUN 04/18/21 MON 04/19/21  
AST 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 85 74 87 74 87 75 87 75 87  
TEMP 85 78 75 81 87 79 75 81 87 79 76 82 87 79 76 82 87 79  
DEWPT 70 70 70 71 72 73 72 71 71 71 70 70 70 72 71 71 69 71  
PWIND DIR NE E E SE SE SE SE E E  
WIND CHAR GN LT LT LT GN GN GN GN GN  
AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC  
POP 12HR 40 40 40 40 20 20 20 30 30  
RAIN SHWRS C C C C C C C C S S S S S S S C C C  
 

 
 
PRZ007-130815-  
MERCEDITA AIRPORT-PONCE PR  
18.02N 66.56W ELEV. 26 FT  
328 PM AST MON APR 12 2021  
 
DATE 04/12/21 TUE 04/13/21 WED 04/14/21 THU  
AST 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 73 87 74 89 72  
TEMP 81 77 75 73 73 80 85 87 83 78 76 74 74 82 87 89 84 78 75 73 73 82  
DEWPT 65 67 67 67 67 69 70 70 70 70 67 66 65 65 66 68 69 68 67 66 66 66  
RH 58 71 76 81 81 69 61 57 65 76 74 76 74 56 50 50 61 71 76 79 79 58  
WIND DIR SE NE NE NE N NE SE SE SE NE N N N N E S E NE NE N N NE  
WIND SPD 6 5 5 4 5 4 6 8 4 4 4 3 3 3 3 4 4 5 5 5 5 6  
CLOUDS FW FW FW FW FW CL FW SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC  
POP 12HR 5 20 20 20 20  
QPF 12HR 0.01 0.05 0.07 0.06 0.04  
RAIN SHWRS S S S S S S S S S S S S S S S  
HEAT INDEX 83 83 90 91 87 84 90 93 88 84  
MAX HEAT 84 83 92 91 84 93 92 84  
 
DATE 04/15 FRI 04/16/21 SAT 04/17/21 SUN 04/18/21 MON 04/19/21  
AST 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 89 75 87 75 90 76 88 76 88  
TEMP 89 80 76 82 87 80 76 84 90 81 76 83 88 80 76 83 88 80  
DEWPT 69 70 69 70 71 72 71 70 68 70 70 68 69 72 69 68 67 70  
PWIND DIR E E E E SE E E E E  
WIND CHAR LT LT LT LT GN LT GN GN GN  
AVG CLOUDS SC SC SC SC SC SC B1 SC SC SC SC SC SC SC SC SC SC SC  
POP 12HR 20 20 30 30 20 20 20 10 20  
RAIN SHWRS S S S S S C C C S S S S S S S S S S  
 

 
 
PRZ008-130815-  
RAFAEL HERNANDEZ AIRPORT-AGUADILLA PR  
18.50N 67.13W ELEV. 237 FT  
328 PM AST MON APR 12 2021  
 
DATE 04/12/21 TUE 04/13/21 WED 04/14/21 THU  
AST 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 73 84 74 85 74  
TEMP 79 76 75 73 73 79 83 84 81 78 76 75 75 80 84 85 82 78 76 75 75 80  
DEWPT 63 64 66 65 65 65 66 68 69 69 68 68 68 68 67 67 68 70 70 70 69 69  
RH 58 66 74 76 76 62 57 59 67 74 76 79 79 67 57 55 63 76 82 84 82 69  
WIND DIR NE E SE SE E NE N N NE E E E NE NE NE N NE NE NE NE NE NE  
WIND SPD 8 9 5 2 2 3 5 5 6 6 5 4 5 6 9 10 12 12 11 9 10 11  
CLOUDS FW FW FW FW FW CL CL SC SC SC FW FW FW SC SC SC SC SC SC SC SC SC  
POP 12HR 5 10 10 20 20  
QPF 12HR 0.01 0.03 0.01 0.05 0.02  
RAIN SHWRS S S S S S S S S S S S S  
HEAT INDEX 81 81 85 87 85 83 87 88 85 82  
MAX HEAT 83 81 87 87 83 88 88 82  
 
DATE 04/15 FRI 04/16/21 SAT 04/17/21 SUN 04/18/21 MON 04/19/21  
AST 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 84 75 84 75 89 77 88 77 88  
TEMP 84 78 75 80 84 78 76 83 89 82 78 83 88 81 78 83 88 81  
DEWPT 68 70 70 69 70 73 71 70 71 73 70 68 69 72 70 69 70 70  
PWIND DIR NE E NE E N SW N E E  
WIND CHAR GN GN LT LT LT LT LT LT GN  
AVG CLOUDS SC SC SC SC SC SC SC SC SC B1 SC SC SC B1 SC SC SC B1  
POP 12HR 30 10 40 10 50 20 40 20 40  
RAIN SHWRS C C S S C C S S C C S S C C S S C C  
TSTMS S S  
 

 
 
PRZ010-130815-  
EUGENIO MARIA DE HOSTO AIRPORT-MAYAGUEZ PR  
18.27N 67.15W ELEV. 28 FT  
328 PM AST MON APR 12 2021  
 
DATE 04/12/21 TUE 04/13/21 WED 04/14/21 THU  
AST 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 72 87 74 89 73  
TEMP 81 77 75 73 73 81 85 87 83 79 77 75 75 82 87 89 84 79 76 74 74 80  
DEWPT 64 64 65 67 66 67 68 70 71 69 67 67 67 67 66 67 67 69 69 69 68 69  
RH 56 64 71 81 79 63 57 57 67 72 71 76 76 61 50 48 57 72 79 84 82 69  
WIND DIR N NE E NE NE NE W NW N NE NE NE NE NE N N N NE NE NE NE NE  
WIND SPD 5 4 4 4 4 3 5 5 6 6 4 4 5 6 9 11 12 12 10 8 9 10  
CLOUDS FW FW FW FW FW CL SC SC SC SC FW FW FW SC SC SC SC SC SC SC SC SC  
POP 12HR 5 30 30 20 20  
QPF 12HR 0.01 0.10 0.01 0.06 0.02  
RAIN SHWRS S C C C S S S S S S S S S  
HEAT INDEX 82 83 89 92 88 85 90 92 87 83  
MAX HEAT 85 83 92 92 85 92 92 83  
 
DATE 04/15 FRI 04/16/21 SAT 04/17/21 SUN 04/18/21 MON 04/19/21  
AST 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 86 75 86 75 94 76 91 76 91  
TEMP 86 79 75 81 86 79 76 86 94 83 77 84 91 81 77 84 91 81  
DEWPT 68 70 69 69 70 72 72 71 69 71 70 67 69 71 69 66 70 69  
PWIND DIR NE E NE SE SE E E E N  
WIND CHAR LT LT LT LT GN LT GN LT GN  
AVG CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC  
POP 12HR 20 10 40 10 20 10 20 10 30  
RAIN SHWRS S S S S C C S S S S S S S S S S C C  
 

 
 
VIZ001-130815-  
CYRIL E. KING AIRPORT-ST THOMAS USVI  
18.33N 64.97W ELEV. 23 FT  
328 PM AST MON APR 12 2021  
 
DATE 04/12/21 TUE 04/13/21 WED 04/14/21 THU  
AST 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 74 85 74 85 76  
TEMP 81 78 76 75 75 80 84 85 82 78 76 75 75 80 84 85 82 79 78 77 77 81  
DEWPT 65 67 68 69 70 70 71 71 71 71 71 71 70 71 71 71 69 67 69 69 69 69  
RH 58 69 76 82 84 72 65 63 69 79 85 87 84 74 65 63 65 67 74 76 76 67  
WIND DIR E E SE E E SE SE SE SE NE NE NE NE N N N N N N N NE NE  
WIND SPD 10 12 11 9 6 6 8 8 6 8 4 4 4 6 8 9 11 12 11 10 11 12  
CLOUDS FW FW FW FW FW SC SC B1 B1 B1 SC B1 B1 SC SC B1 B1 B1 B1 B1 B1 SC  
POP 12HR 20 40 40 40 40  
QPF 12HR 0.02 0.13 0.14 0.14 0.08  
RAIN SHWRS S S C C C C C C C C C C C C C C S  
HEAT INDEX 83 83 89 90 86 84 89 90 86 81 84  
MAX HEAT 85 83 90 90 84 90 90 84  
 
DATE 04/15 FRI 04/16/21 SAT 04/17/21 SUN 04/18/21 MON 04/19/21  
AST 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 85 75 84 77 85 77 86 77 86  
TEMP 85 79 76 80 84 80 77 81 85 80 77 82 86 80 78 82 86 80  
DEWPT 69 69 71 72 73 73 71 71 71 71 70 70 70 72 70 71 71 71  
PWIND DIR NE E E SE SE SE SE E E  
WIND CHAR GN GN GN GN GN GN GN GN BZ  
AVG CLOUDS SC B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC  
POP 12HR 40 40 40 40 20 20 20 20 30  
RAIN SHWRS C C C C C C C C S S S S S S S S S C  
 

 
 
VIZ002-130815-  
HENRY E. ROHLSEN AIRPORT-ST CROIX USVI  
17.70N 64.80W ELEV. 74 FT  
328 PM AST MON APR 12 2021  
 
DATE 04/12/21 TUE 04/13/21 WED 04/14/21 THU  
AST 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 72 86 72 83 72  
TEMP 81 76 74 73 73 80 84 86 82 77 75 73 73 78 82 83 80 76 74 73 73 80  
DEWPT 67 68 69 70 70 71 71 71 71 71 71 71 71 71 70 71 71 71 70 69 69 69  
RH 63 76 84 90 90 74 65 61 69 82 87 93 93 79 67 67 74 85 87 87 87 69  
WIND DIR E E E E SE E SE SE SE SE SE S E NE NE N N N NE NE NE NE  
WIND SPD 10 11 11 9 9 10 8 8 8 5 5 4 4 4 4 6 9 11 11 10 11 12  
CLOUDS FW SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1  
POP 12HR 20 30 40 40 40  
QPF 12HR 0.06 0.10 0.16 0.16 0.10  
RAIN SHWRS S S S S S S C C C C C C C C C C C C C C C  
HEAT INDEX 83 83 90 91 86 86 88 83 83  
MAX HEAT 86 83 91 91 88 87 83  
 
DATE 04/15 FRI 04/16/21 SAT 04/17/21 SUN 04/18/21 MON 04/19/21  
AST 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 86 75 85 75 87 74 86 74 86  
TEMP 86 79 76 81 85 79 76 82 87 79 75 81 86 78 75 81 86 78  
DEWPT 70 71 72 72 73 72 71 70 69 69 70 70 71 71 71 69 68 71  
PWIND DIR NE E SE SE SE E E E E  
WIND CHAR GN GN GN GN GN GN GN GN BZ  
AVG CLOUDS B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC  
POP 12HR 40 40 40 20 20 20 20 20 20  
RAIN SHWRS C C C C C C S S S S S S S S S S S S  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab PR Page Main Text Page