101  
FOCA52 TJSJ 122103  
PFMSJU  
 
POINT FORECAST MATRICES  
NATIONAL WEATHER SERVICE SAN JUAN PR  
503 PM AST FRI SEP 12 2025  
 
PRZ001-130800-  
LUIS MUNOZ MARIN INTERNATIONAL AIRPORT-SAN JUAN  
18.43N 66.00W ELEV. 9 FT  
503 PM AST FRI SEP 12 2025  
 
DATE 09/12/25 SAT 09/13/25 SUN 09/14/25 MON  
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 78 91 79 91 79  
TEMP 82 80 79 78 86 90 91 86 83 81 80 79 86 90 91 86 83 81 80 79 87  
DEWPT 74 75 75 74 75 75 76 76 75 75 75 75 75 77 77 76 76 76 76 75 76  
RH 77 85 88 88 70 62 62 72 77 82 85 88 70 66 64 72 80 85 88 88 70  
WIND DIR E S S S SE E E E E E SE SE E E E E E E SE E E  
WIND SPD 8 6 4 4 5 10 16 12 8 6 6 6 9 16 17 12 11 9 9 10 10  
CLOUDS SC SC SC SC SC SC B2 B2 SC SC B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 B1  
POP 12HR 30 60 40 60 60  
QPF 12HR 0.12 0.92 0.70 0.52 0.28  
RAIN SHWRS C S C S S C L L C C C C C C C C L L L L C  
TSTMS S S S S S S S S S  
HEAT INDEX 88 85 94100103 96 90 87 84 84 95103104 96 90 87 84 84 97  
MAX HEAT 94 87 94 103 102 88 95 105 103 89 97  
 
DATE 09/15 TUE 09/16/25 WED 09/17/25 THU 09/18/25 FRI 09/19/25  
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 92 80 91 79 91 78 92 78 92  
TEMP 92 84 81 86 91 83 80 86 91 82 79 86 92 82 79 86 92 82  
DEWPT 77 76 76 76 77 76 76 76 76 75 75 75 76 75 75 75 76 75  
PWIND DIR E E E E E SE E SE E  
WIND CHAR GN GN GN LT GN LT GN LT GN  
AVG CLOUDS B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B2  
POP 12HR 50 40 60 60 60 50 60 50 50  
RAIN SHWRS C C C C L L C L L C C C L L C C C C  
TSTMS S S S S S S S S  
 

 
PRZ002-130800-  
ROOSEVELT ROADS NAVAL AIRSTATION-CEIBA PR  
18.25N 65.63W ELEV. 39 FT  
503 PM AST FRI SEP 12 2025  
 
DATE 09/12/25 SAT 09/13/25 SUN 09/14/25 MON  
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 80 90 80 90 80  
TEMP 83 82 81 80 86 89 90 86 83 82 81 80 86 89 90 86 83 82 81 80 86  
DEWPT 76 76 76 76 77 77 76 77 77 77 76 76 77 77 77 78 77 77 77 77 77  
RH 80 82 85 88 75 68 64 75 82 85 85 88 75 68 66 77 82 85 88 91 75  
WIND DIR E SE E E E SE E E E E SE E E E E E E E E E E  
WIND SPD 8 8 6 6 8 11 11 10 9 10 10 9 12 13 14 14 16 13 12 12 12  
CLOUDS B2 B1 B2 SC SC B1 SC SC B1 B1 B2 B2 B2 B2 B2 B2 OV OV OV OV B2  
POP 12HR 50 40 50 70 70  
QPF 12HR 0.21 0.23 0.85 0.64 0.32  
RAIN SHWRS C C C C C C C C C C C C C C C C L L L L C  
TSTMS S S S S S S S S S S S S S S  
HEAT INDEX 91 89 87 86 97102102 97 92 89 87 86 97102103 98 92 89 87 87 97  
MAX HEAT 97 90 97 103 101 91 97 103 103 91 97  
 
DATE 09/15 TUE 09/16/25 WED 09/17/25 THU 09/18/25 FRI 09/19/25  
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 90 80 90 80 89 78 90 79 90  
TEMP 90 83 81 86 90 83 81 85 89 81 79 85 90 82 80 85 90 82  
DEWPT 77 77 77 78 78 77 77 78 77 77 76 77 77 76 76 77 77 76  
PWIND DIR E E E E E E SE E SE  
WIND CHAR GN GN GN LT GN GN GN GN GN  
AVG CLOUDS B1 B1 B2 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1  
POP 12HR 50 50 60 60 60 50 60 50 50  
RAIN SHWRS C C C C L L C L L C C C L L C C C C  
TSTMS S S S S S S S S  
 

 
PRZ007-130800-  
MERCEDITA AIRPORT-PONCE PR  
18.02N 66.56W ELEV. 26 FT  
503 PM AST FRI SEP 12 2025  
 
DATE 09/12/25 SAT 09/13/25 SUN 09/14/25 MON  
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 77 91 77 91 78  
TEMP 81 79 78 77 85 90 91 85 81 79 78 77 85 90 91 85 82 80 79 78 85  
DEWPT 76 75 74 72 75 78 79 78 76 75 74 72 75 78 79 78 77 76 75 74 76  
RH 85 88 88 85 72 68 68 80 85 88 88 85 72 68 68 80 85 88 88 88 75  
WIND DIR NE NE NE NE E SE SE SE E NE NE NE E E E E E E E E E  
WIND SPD 5 5 4 3 3 10 10 8 5 5 4 4 4 14 12 11 9 8 8 6 8  
WIND GUST 25  
CLOUDS SC SC FW FW SC SC SC SC CL SC SC SC FW FW SC SC B2 B2 B2 B2 SC  
POP 12HR 10 30 10 50 50  
QPF 12HR 0.02 0.14 0.15 0.06 0.21  
RAIN SHWRS S S S S C C S S S S S C C C C S  
TSTMS S S S S  
HEAT INDEX 88 83 94104107 97 88 83 94104107 97 90 86 94  
MAX HEAT 96 86 94 107 106 86 94 107 106 88 94  
 
DATE 09/15 TUE 09/16/25 WED 09/17/25 THU 09/18/25 FRI 09/19/25  
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 90 77 92 77 90 76 90 76 90  
TEMP 90 81 78 86 92 82 78 85 90 80 77 84 90 80 77 84 90 80  
DEWPT 79 76 74 76 79 77 75 76 79 77 74 76 78 76 74 76 73 72  
PWIND DIR E NE E NE E E E E E  
WIND CHAR GN LT GN LT GN LT GN LT LT  
AVG CLOUDS SC SC SC SC SC SC FW SC SC SC FW SC SC B1 SC SC CL FW  
POP 12HR 10 10 20 20 40 20 40 20 5  
RAIN SHWRS S S S S S S S C C S C C S S S  
 

 
PRZ008-130800-  
RAFAEL HERNANDEZ AIRPORT-AGUADILLA PR  
18.50N 67.13W ELEV. 237 FT  
503 PM AST FRI SEP 12 2025  
 
DATE 09/12/25 SAT 09/13/25 SUN 09/14/25 MON  
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 76 88 76 89 76  
TEMP 80 78 77 76 83 87 88 83 80 78 77 76 84 88 89 83 80 78 77 76 83  
DEWPT 74 75 74 72 74 75 76 75 75 75 74 72 75 76 77 76 76 76 75 74 75  
RH 82 91 90 87 74 68 68 77 85 91 90 87 74 68 68 80 88 94 94 94 77  
WIND DIR E E SE E E NE NE E E E SE E E E E E E E E E E  
WIND SPD 9 6 3 2 3 5 9 8 5 6 6 6 10 12 12 3 6 8 10 12 10  
CLOUDS SC SC SC CL CL CL B2 B2 B2 SC CL CL CL CL B2 B2 SC SC SC SC SC  
POP 12HR 20 60 50 60 20  
QPF 12HR 0.04 0.90 0.05 1.17 0.03  
RAIN SHWRS S S S L L C C L L S S S S S  
TSTMS S S S S S  
HEAT INDEX 84 90 96 99 90 84 91 99101 92 85 90  
MAX HEAT 89 90 99 98 91 101 100 83 90  
 
DATE 09/15 TUE 09/16/25 WED 09/17/25 THU 09/18/25 FRI 09/19/25  
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 77 88 77 88 76 87 76 87  
TEMP 88 80 78 83 88 80 78 83 88 80 77 82 87 79 77 82 87 79  
DEWPT 77 76 75 76 78 76 76 76 78 75 75 75 76 75 74 74 76 75  
PWIND DIR E E E E E E E E E  
WIND CHAR GN GN BZ GN LT LT GN LT LT  
AVG CLOUDS SC B1 SC FW SC B1 SC SC SC B1 SC SC SC B2 B2 B1 B1 B1  
POP 12HR 60 10 50 10 50 10 60 50 50  
RAIN SHWRS L L S S C C S S C C S S L L C C C C  
TSTMS S S S S S S S S  
 

 
PRZ010-130800-  
EUGENIO MARIA DE HOSTO AIRPORT-MAYAGUEZ PR  
18.27N 67.15W ELEV. 28 FT  
503 PM AST FRI SEP 12 2025  
 
DATE 09/12/25 SAT 09/13/25 SUN 09/14/25 MON  
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 75 93 75 93 76  
TEMP 80 78 76 76 85 91 93 85 80 78 76 76 85 91 93 86 81 79 77 77 86  
DEWPT 76 75 75 74 76 77 79 77 76 75 75 73 75 77 79 78 77 76 76 75 77  
RH 88 91 97 94 75 64 64 77 88 91 97 90 72 64 64 77 88 91 97 94 75  
WIND DIR NE E E NE NE SW SW NE E E E E E E E E E E E E E  
WIND SPD 2 4 4 4 4 1 4 3 1 3 4 4 4 2 2 3 1 5 5 5 4  
CLOUDS SC FW FW CL CL CL OV OV SC SC CL CL CL CL B2 B2 SC SC SC SC FW  
POP 12HR 20 70 20 60 20  
QPF 12HR 0.02 1.04 0.02 1.17 0.03  
RAIN SHWRS S L L S S L L S S S S  
TSTMS S S S S  
HEAT INDEX 86 95105110 96 86 94105110 98 88 97  
MAX HEAT 96 84 95 110 109 84 94 110 109 86 97  
 
DATE 09/15 TUE 09/16/25 WED 09/17/25 THU 09/18/25 FRI 09/19/25  
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 93 75 93 75 93 75 93 75 93  
TEMP 93 80 76 85 93 80 76 85 93 80 76 85 93 80 76 85 93 80  
DEWPT 79 77 75 77 79 77 76 77 80 77 75 76 78 76 75 77 79 77  
PWIND DIR E E E E E E SE E SE  
WIND CHAR LT LT LT GN LT LT LT LT LT  
AVG CLOUDS SC B1 FW FW SC B1 CL FW SC B1 CL CL SC B1 B1 B1 SC SC  
POP 12HR 60 0 60 5 60 0 50 40 40  
RAIN SHWRS L L L L L L C C C C C C  
TSTMS S S S S S S  
 

 
VIZ001-130800-  
CYRIL E. KING AIRPORT-ST THOMAS USVI  
18.33N 64.97W ELEV. 23 FT  
503 PM AST FRI SEP 12 2025  
 
DATE 09/12/25 SAT 09/13/25 SUN 09/14/25 MON  
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 82 91 82 91 82  
TEMP 85 83 82 82 87 90 91 87 85 83 82 82 87 90 91 87 85 83 82 82 88  
DEWPT 77 77 77 76 77 77 76 77 77 78 77 77 77 78 77 78 77 78 78 77 77  
RH 77 82 85 82 72 66 62 72 77 85 85 85 72 68 64 75 77 85 88 85 70  
WIND DIR E E E E E E E E E E E E E E E E E E E E E  
WIND SPD 11 12 10 10 13 14 14 12 14 17 16 14 18 19 19 19 20 19 19 17 17  
CLOUDS SC SC B1 SC SC SC SC SC B1 B1 B2 SC SC SC B2 B2 B2 B2 B2 B2 SC  
POP 12HR 40 40 50 60 60  
QPF 12HR 0.15 0.20 0.67 0.50 0.27  
RAIN SHWRS C S C S C C C C C C C C C C C C L L L L C  
TSTMS S S S S S S S S S  
HEAT INDEX 95 93 91 90 99103103 99 95 94 91 91 99105104100 95 94 92 91100  
MAX HEAT 99 95 99 103 103 94 99 105 104 94 100  
 
DATE 09/15 TUE 09/16/25 WED 09/17/25 THU 09/18/25 FRI 09/19/25  
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 92 83 92 81 91 81 91 82 92  
TEMP 92 86 83 88 92 84 82 87 91 84 82 87 91 85 82 88 92 85  
DEWPT 78 78 78 79 78 78 78 78 77 77 77 77 77 77 77 77 77 77  
PWIND DIR E E E E E E SE E SE  
WIND CHAR BZ BZ BZ GN GN BZ GN GN GN  
AVG CLOUDS SC SC SC SC SC B1 B1 B1 B1 B1 B2 B1 B1 B1 B1 B1 B1 SC  
POP 12HR 30 30 50 40 50 50 40 40 40  
RAIN SHWRS C C C C C C C C C C C C C C C C C S  
TSTMS S S  
 

 
VIZ002-130800-  
HENRY E. ROHLSEN AIRPORT-ST CROIX USVI  
17.70N 64.80W ELEV. 74 FT  
503 PM AST FRI SEP 12 2025  
 
DATE 09/12/25 SAT 09/13/25 SUN 09/14/25 MON  
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 78 91 77 91 78  
TEMP 82 80 79 78 86 90 91 85 81 79 78 77 85 90 91 85 82 80 79 78 86  
DEWPT 76 75 76 76 76 76 76 76 76 76 76 76 77 77 77 77 77 76 76 76 77  
RH 82 85 91 94 72 64 62 75 85 91 94 97 77 66 64 77 85 88 91 94 75  
WIND DIR E E E E E E E E E E E E E E E E E E E E E  
WIND SPD 9 10 10 9 12 12 11 12 12 13 12 12 14 18 18 18 17 16 17 13 16  
CLOUDS SC SC SC SC SC SC SC SC B1 B1 B1 SC SC SC B2 B2 OV OV OV OV B2  
POP 12HR 30 40 40 70 70  
QPF 12HR 0.12 0.18 0.50 0.33 0.32  
RAIN SHWRS C S C S S S C C C C C C S S C C L L L L C  
TSTMS S S S S S S S S S S  
HEAT INDEX 89 85 95102103 94 88 84 96103104 96 90 86 96  
MAX HEAT 95 88 95 103 102 86 96 105 103 88 96  
 
DATE 09/15 TUE 09/16/25 WED 09/17/25 THU 09/18/25 FRI 09/19/25  
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 91 79 91 78 90 78 90 78 91  
TEMP 91 83 80 86 91 82 79 85 90 82 79 85 90 82 79 86 91 82  
DEWPT 77 77 77 78 78 77 77 77 77 76 76 77 77 76 76 77 77 76  
PWIND DIR E E E E E E E E E  
WIND CHAR BZ GN GN GN GN GN GN GN GN  
AVG CLOUDS B1 SC B1 B1 B1 B1 B1 B1 SC SC SC SC B1 B1 B1 B1 SC FW  
POP 12HR 50 40 50 40 40 40 40 40 20  
RAIN SHWRS C C C C C C C C C C S C C C C C S S  
TSTMS S S S S S S  
 

 
 
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