642  
FOCA52 TJSJ 121948  
PFMSJU  
 
POINT FORECAST MATRICES  
NATIONAL WEATHER SERVICE SAN JUAN PR  
348 PM AST WED AUG 12 2020  
 
PRZ001-130815-  
LUIS MUNOZ MARIN INTERNATIONAL AIRPORT-SAN JUAN  
18.43N 66.00W ELEV. 9 FT  
348 PM AST WED AUG 12 2020  
 
DATE 08/12/20 THU 08/13/20 FRI 08/14/20 SAT  
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 89 79  
TEMP 86 83 82 81 81 86 89 90 87 83 82 81 81 86 88 89 86 82 81 80 80 84  
DEWPT 76 76 76 76 74 73 74 73 74 74 75 75 74 74 72 74 74 75 75 74 74 73  
RH 72 80 82 85 79 65 61 58 65 74 79 82 79 68 59 61 68 79 82 82 82 70  
WIND DIR E E E E E E E E E E E E E E E E E E E E E E  
WIND SPD 17 14 13 12 12 14 17 17 16 12 12 10 11 13 13 13 13 13 13 13 12 11  
CLOUDS B2 SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 SC  
POP 12HR 20 20 20 40 40  
QPF 12HR 0.05 0.07 0.04 0.04 0.08  
RAIN SHWRS L S S S S S S S S S S S S S S S S C C C C S  
TSTMS S  
HEAT INDEX 96 91 89 87 86 93 98 98 95 90 89 87 86 94 95 98 94 89 87 84 84 90  
MAX HEAT 100 89 93 99 98 90 94 98 98 89 90  
 
DATE 08/15 SUN 08/16/20 MON 08/17/20 TUE 08/18/20 WED 08/19/20  
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 87 79 90 79 90 79 89 79 88  
TEMP 87 82 79 86 90 83 80 86 90 83 80 85 89 82 80 85 88 81  
DEWPT 74 75 75 74 76 72 74 75 76 75 75 76 75 75 74 75 74 74  
PWIND DIR E SE SE SE E E E SE E  
WIND CHAR GN LT LT LT GN GN BZ GN BZ  
AVG CLOUDS SC B1 B2 B2 B1 B1 SC B1 B1 B1 SC SC SC SC SC SC SC SC  
POP 12HR 50 50 50 40 40 30 30 30 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  
 

 
 
PRZ002-130815-  
ROOSEVELT ROADS NAVAL AIRSTATION-CEIBA PR  
18.25N 65.63W ELEV. 39 FT  
348 PM AST WED AUG 12 2020  
 
DATE 08/12/20 THU 08/13/20 FRI 08/14/20 SAT  
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 89 80 89 80  
TEMP 88 85 84 82 83 86 89 89 86 83 82 81 81 86 88 89 86 83 82 81 81 86  
DEWPT 76 77 77 76 74 73 74 74 74 75 76 75 75 74 74 75 75 75 75 74 74 73  
RH 68 77 80 82 74 65 61 61 68 77 82 82 82 68 63 64 70 77 79 79 79 65  
WIND DIR E E E E E E E E E E E E E E E E E NE E E E E  
WIND SPD 14 16 16 17 16 16 17 14 14 14 14 13 13 14 14 13 14 14 14 14 14 13  
CLOUDS B2 SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 SC  
POP 12HR 20 20 20 40 40  
QPF 12HR 0.05 0.09 0.04 0.12 0.11  
RAIN SHWRS C S S S S S S S S S S S S S S C C C C C C C  
TSTMS S  
HEAT INDEX 99 96 94 89 90 93 98 98 94 90 89 87 87 94 97 99 95 90 89 86 86 93  
MAX HEAT 103 94 93 98 98 89 94 99 99 89 93  
 
DATE 08/15 SUN 08/16/20 MON 08/17/20 TUE 08/18/20 WED 08/19/20  
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 79 89 79 89 80 90 80 89  
TEMP 89 82 80 85 89 82 80 85 89 83 81 86 90 83 81 86 89 82  
DEWPT 75 76 75 74 74 74 75 76 77 75 76 76 76 75 75 74 75 74  
PWIND DIR E E S SE E E E E E  
WIND CHAR GN LT LT LT GN GN BZ BZ BZ  
AVG CLOUDS B1 B1 B2 B2 B2 B1 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 SC SC  
POP 12HR 50 60 60 50 50 40 40 40 30  
RAIN SHWRS C C C L L C C C C C C C C C C C C C  
TSTMS S S S S S S S S  
 

 
 
PRZ007-130815-  
MERCEDITA AIRPORT-PONCE PR  
18.02N 66.56W ELEV. 26 FT  
348 PM AST WED AUG 12 2020  
 
DATE 08/12/20 THU 08/13/20 FRI 08/14/20 SAT  
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 89 77 89 76  
TEMP 87 83 82 81 81 86 88 89 85 81 79 78 78 84 88 89 85 80 78 77 77 84  
DEWPT 76 75 73 72 74 73 72 74 72 71 71 72 71 72 72 72 75 74 73 72 71 72  
RH 70 77 74 74 79 65 59 61 65 72 77 82 79 67 59 57 72 82 85 85 82 67  
WIND DIR E NE NE NE NE E E SE SE E NE NE NE E E SE E NE NE N NE E  
WIND SPD 13 10 10 9 11 14 16 16 17 10 10 10 10 10 11 12 11 10 8 8 9 10  
CLOUDS B1 SC SC SC FW SC FW SC SC SC FW FW FW FW FW SC SC SC SC SC SC SC  
POP 12HR 20 20 20 10 10  
QPF 12HR 0.04 0.03 0.02 0.01 0.01  
RAIN SHWRS C S S S S S S S S S S S S S S S  
HEAT INDEX 98 90 87 85 86 93 95 98 91 85 90 95 96 94 84 90  
MAX HEAT 102 90 93 98 97 83 90 96 96 84 90  
 
DATE 08/15 SUN 08/16/20 MON 08/17/20 TUE 08/18/20 WED 08/19/20  
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 78 88 77 88 77 89 77 88  
TEMP 89 82 79 84 88 81 78 84 88 81 78 84 89 81 78 84 88 80  
DEWPT 72 74 72 72 74 72 72 71 75 75 73 74 75 73 72 74 73 72  
PWIND DIR E NE E NE E NE E NE E  
WIND CHAR GN LT LT LT GN LT GN GN GN  
AVG CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC  
POP 12HR 20 20 30 10 10 10 20 10 20  
RAIN SHWRS S S S S C C S S S S S S S S S S S S  
 

 
 
PRZ008-130815-  
RAFAEL HERNANDEZ AIRPORT-AGUADILLA PR  
18.50N 67.13W ELEV. 237 FT  
348 PM AST WED AUG 12 2020  
 
DATE 08/12/20 THU 08/13/20 FRI 08/14/20 SAT  
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 81 87 80 88 79  
TEMP 87 84 83 81 82 85 87 87 85 82 81 80 81 85 88 88 85 82 81 80 80 84  
DEWPT 77 77 76 75 75 74 73 75 75 75 74 74 74 74 75 74 75 75 75 75 74 74  
RH 72 80 80 82 79 70 63 68 72 79 79 82 79 70 66 63 72 79 82 85 82 72  
WIND DIR E E E E E E E E E E E E E E E E E E E E E E  
WIND SPD 20 19 17 13 16 19 18 20 23 19 17 14 13 13 16 17 18 17 16 14 16 17  
CLOUDS B2 SC SC FW FW SC FW SC SC SC SC FW FW FW FW SC SC SC SC SC SC SC  
POP 12HR 20 30 30 10 10  
QPF 12HR 0.04 0.09 0.04 0.01 0.01  
RAIN SHWRS L S S S S S S C S S S S S S S S  
TSTMS S  
HEAT INDEX 99 94 91 87 89 93 94 96 94 89 86 84 86 93 98 97 94 89 87 85 84 91  
MAX HEAT 102 92 93 96 96 89 93 98 97 87 91  
 
DATE 08/15 SUN 08/16/20 MON 08/17/20 TUE 08/18/20 WED 08/19/20  
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 87 79 87 80 88 78 88 79 87  
TEMP 87 82 79 84 87 82 80 85 88 81 79 84 88 82 80 84 87 82  
DEWPT 74 76 75 74 74 73 72 71 74 76 73 75 77 76 74 74 74 74  
PWIND DIR E E SW SE NE E E E E  
WIND CHAR BZ GN LT LT GN GN BZ BZ BZ  
AVG CLOUDS SC SC SC SC SC B1 SC SC SC B1 SC SC SC B1 SC SC SC SC  
POP 12HR 20 10 60 10 60 10 50 10 30  
RAIN SHWRS S S S S L L S S L L S S C C S S C C  
TSTMS C C S S  
 

 
 
PRZ010-130815-  
EUGENIO MARIA DE HOSTO AIRPORT-MAYAGUEZ PR  
18.27N 67.15W ELEV. 28 FT  
348 PM AST WED AUG 12 2020  
 
DATE 08/12/20 THU 08/13/20 FRI 08/14/20 SAT  
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 79 90 77 90 78  
TEMP 87 83 81 80 80 86 89 90 86 81 79 78 78 85 89 90 86 82 80 79 79 85  
DEWPT 77 76 75 73 73 74 71 74 75 74 72 72 71 72 73 74 75 75 73 73 73 73  
RH 72 80 82 79 79 68 56 60 70 79 79 82 79 65 59 60 70 79 79 82 82 67  
WIND DIR E NE NE NE NE E E NE E E NE NE E E S W S E E E E E  
WIND SPD 9 8 8 6 8 10 8 6 6 6 8 8 9 10 9 8 9 11 11 10 10 11  
CLOUDS B2 SC FW FW FW FW FW SC B1 SC FW FW FW FW FW SC SC SC SC SC SC SC  
POP 12HR 20 40 30 30 10  
QPF 12HR 0.03 0.24 0.03 0.09 0.01  
RAIN SHWRS L S C C C C C S S S S S  
TSTMS S  
HEAT INDEX 99 91 87 84 84 94 95 99 95 86 91 97 99 95 89 84 92  
MAX HEAT 102 89 94 99 99 86 91 99 98 86 92  
 
DATE 08/15 SUN 08/16/20 MON 08/17/20 TUE 08/18/20 WED 08/19/20  
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 77 86 78 87 77 90 77 90  
TEMP 89 81 78 83 86 81 78 84 87 80 78 85 90 81 78 85 90 81  
DEWPT 73 75 73 73 75 73 71 71 74 75 72 73 76 75 73 73 73 74  
PWIND DIR SW E S SE N E N E NE  
WIND CHAR GN LT LT LT LT LT GN LT LT  
AVG CLOUDS SC B1 SC SC SC B1 SC SC SC B1 SC SC SC B1 SC SC SC B1  
POP 12HR 50 10 60 10 50 10 50 10 50  
RAIN SHWRS C C S S L L S S C C S S C C S S C C  
TSTMS S S C C S S  
 

 
 
VIZ001-130815-  
CYRIL E. KING AIRPORT-ST THOMAS USVI  
18.33N 64.97W ELEV. 23 FT  
348 PM AST WED AUG 12 2020  
 
DATE 08/12/20 THU 08/13/20 FRI 08/14/20 SAT  
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 81 90 80 91 79  
TEMP 87 84 83 82 82 87 89 90 87 83 82 81 81 87 90 91 87 83 81 80 80 85  
DEWPT 77 76 77 75 73 74 73 74 74 75 75 75 74 73 74 74 74 74 75 74 73 73  
RH 72 77 82 79 74 65 59 60 65 77 79 82 79 63 60 58 65 74 82 82 79 67  
WIND DIR E E E E E E E E E E E E E E E E E E E E E E  
WIND SPD 17 17 17 18 18 18 18 16 16 17 18 17 17 18 18 17 18 19 19 18 17 14  
CLOUDS B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 SC  
POP 12HR 20 20 20 40 40  
QPF 12HR 0.04 0.09 0.04 0.12 0.11  
RAIN SHWRS C S S S S S S S S S S S S S S C C C C C C C  
HEAT INDEX 99 93 92 89 87 95 97 99 95 90 89 87 86 94 99101 95 90 87 84 84 92  
MAX HEAT 102 92 95 99 99 90 94 101 99 89 92  
 
DATE 08/15 SUN 08/16/20 MON 08/17/20 TUE 08/18/20 WED 08/19/20  
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 79 88 81 90 80 90 80 90  
TEMP 89 82 80 85 88 83 81 87 90 83 81 86 90 83 81 86 90 85  
DEWPT 74 76 75 74 73 76 75 75 75 75 76 75 76 75 75 74 74 74  
PWIND DIR E E SE E E E E E E  
WIND CHAR GN GN GN GN BZ BZ BZ BZ WY  
AVG CLOUDS B1 B1 B2 B2 B2 B1 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 SC SC  
POP 12HR 50 60 60 50 50 40 40 40 30  
RAIN SHWRS C C C L L C C C C C C C C C C C C C  
TSTMS S S S S S S S S  
 

 
 
VIZ002-130815-  
HENRY E. ROHLSEN AIRPORT-ST CROIX USVI  
17.70N 64.80W ELEV. 74 FT  
348 PM AST WED AUG 12 2020  
 
DATE 08/12/20 THU 08/13/20 FRI 08/14/20 SAT  
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 78 90 77  
TEMP 88 84 82 81 81 86 89 90 86 82 80 79 79 85 89 90 86 81 79 78 78 84  
DEWPT 76 76 76 74 74 73 74 73 74 75 75 74 74 73 75 74 75 75 75 72 73 73  
RH 68 77 82 79 79 65 61 58 68 79 85 85 85 67 64 60 70 82 88 82 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 E  
WIND SPD 16 16 18 18 17 17 18 17 17 17 17 17 18 18 17 17 18 18 19 18 17 14  
CLOUDS B2 SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 SC  
POP 12HR 20 20 20 40 40  
QPF 12HR 0.04 0.08 0.04 0.12 0.09  
RAIN SHWRS C S S S S S S S S S S S S S S C C C C C C S  
TSTMS S  
HEAT INDEX 99 93 89 86 86 93 98 98 94 89 85 92 99 99 95 87 90  
MAX HEAT 105 91 93 99 97 87 92 101 98 87 90  
 
DATE 08/15 SUN 08/16/20 MON 08/17/20 TUE 08/18/20 WED 08/19/20  
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 78 89 79 90 78 88 79 90  
TEMP 88 81 79 85 89 82 80 86 90 82 79 84 88 82 80 86 90 84  
DEWPT 73 76 75 75 74 75 75 76 75 76 76 76 76 75 74 74 74 74  
PWIND DIR E SE SE E E E E E E  
WIND CHAR GN LT GN GN BZ BZ BZ BZ BZ  
AVG CLOUDS SC B1 B2 B2 B2 B1 B2 B1 B1 B1 SC SC SC B1 B1 B1 SC SC  
POP 12HR 50 60 60 50 40 20 40 40 30  
RAIN SHWRS C C C L L C C C C C S S C C C C C C  
TSTMS S S S S S S S  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab PR Page Main Text Page