588  
FOCA52 TJSJ 231859  
PFMSJU  
 
POINT FORECAST MATRICES  
NATIONAL WEATHER SERVICE SAN JUAN PR  
259 PM AST WED MAY 23 2018  
 
PRZ001-240815-  
LUIS MUNOZ MARIN INTERNATIONAL AIRPORT-SAN JUAN  
18.43N 66.00W ELEV. 9 FT  
259 PM AST WED MAY 23 2018  
 
DATE 05/23/18 THU 05/24/18 FRI 05/25/18 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 76 88 76 88 77  
TEMP 80 78 77 77 77 79 82 83 82 78 78 77 77 79 82 83 81 78 78 77 77 79  
DEWPT 72 72 72 71 71 72 72 72 72 73 73 72 72 72 72 73 73 73 72 72 72 72  
RH 77 82 85 82 82 79 72 70 72 85 85 85 85 79 72 72 77 85 82 85 85 79  
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 12 11 10 9 13 14 16 14 12 11 9 9 12 17 18 17 13 11 10 9 13  
CLOUDS B1 SC SC B1 B1 SC SC SC SC SC SC SC SC SC SC B1 B1 SC SC SC SC SC  
POP 12HR 40 30 30 40 30  
QPF 12HR 0.42 0.16 0.08 0.23 0.07  
RAIN SHWRS C S S C C C C C C S S C C S S C C S S S S C  
HEAT INDEX 84 87 88 87 87 89 86  
MAX HEAT 85 88 88 89 87  
 
DATE 05/26 SUN 05/27/18 MON 05/28/18 TUE 05/29/18 WED 05/30/18  
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 89 77 89 77 88 77 89  
TEMP 83 78 78 80 83 79 78 80 82 78 78 79 84 79 78 80 84 79  
DEWPT 73 73 73 73 73 73 73 72 72 73 72 72 72 73 72 72 72 72  
PWIND DIR E E E E E E E E E  
WIND CHAR BZ GN GN GN GN GN GN GN GN  
AVG CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC FW SC SC SC SC SC  
POP 12HR 30 40 40 20 40 20 20 20 20  
RAIN SHWRS C S S C C C S S C C S S S S S S S S  
TSTMS S S  
 

 
 
PRZ002-240815-  
ROOSEVELT ROADS NAVAL AIRSTATION-CEIBA PR  
18.25N 65.63W ELEV. 39 FT  
259 PM AST WED MAY 23 2018  
 
DATE 05/23/18 THU 05/24/18 FRI 05/25/18 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 77 87 77 86 77  
TEMP 79 77 77 77 77 79 81 82 80 77 78 77 77 78 81 81 80 77 77 77 77 79  
DEWPT 73 72 72 71 72 72 73 73 73 73 73 73 72 73 73 74 74 73 72 72 73 73  
RH 82 85 85 82 85 79 77 74 79 87 85 87 85 85 77 79 82 87 85 85 87 82  
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 14 14 16 14 13 13 13 14 13 13 13 12 11 13 16 16 16 14 13 11 10 14  
CLOUDS SC SC SC B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC  
POP 12HR 40 30 30 30 30  
QPF 12HR 0.44 0.16 0.09 0.15 0.12  
RAIN SHWRS C C C C C C C C C S S C C C C C C C C C C C  
HEAT INDEX 86 87 84 86 86 84  
MAX HEAT 84 87 86 86 86  
 
DATE 05/26 SUN 05/27/18 MON 05/28/18 TUE 05/29/18 WED 05/30/18  
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 77 87 77 87 77 87 77 88  
TEMP 81 78 78 79 82 78 77 79 81 78 77 79 82 78 78 80 82 78  
DEWPT 74 73 73 74 74 74 73 73 74 73 73 72 73 73 72 73 73 73  
PWIND DIR E E E E E E E E E  
WIND CHAR BZ BZ GN GN GN GN 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 40 40 40 40 40 40 40 40 20  
RAIN SHWRS C C C C C C C C C C C C S C C C S S  
TSTMS S S S S S S  
 

 
 
PRZ007-240815-  
MERCEDITA AIRPORT-PONCE PR  
18.02N 66.56W ELEV. 26 FT  
259 PM AST WED MAY 23 2018  
 
DATE 05/23/18 THU 05/24/18 FRI 05/25/18 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 73 92 73 90 72  
TEMP 83 75 74 73 73 80 88 87 84 76 74 74 73 80 88 88 83 76 75 74 73 80  
DEWPT 69 70 70 69 69 69 67 69 69 71 71 70 70 70 68 70 70 71 71 70 70 70  
RH 63 84 87 87 87 69 50 55 61 85 90 87 90 72 52 55 65 85 87 87 90 72  
WIND DIR SE E NE NE NE E SE SE SE E NE NE NE E SE SE SE E NE NE NE E  
WIND SPD 17 9 9 8 8 12 16 17 14 9 9 8 9 13 18 19 18 10 9 9 9 14  
CLOUDS SC SC SC CL CL FW FW CL CL SC SC SC SC SC SC SC SC SC SC SC SC FW  
POP 12HR 10 10 10 20 20  
QPF 12HR 0.04 0.07 0.02 0.05 0.03  
RAIN SHWRS S S S S S S S S S S S S S S S S S S S S  
HEAT INDEX 87 83 91 91 88 83 92 93 87 83  
MAX HEAT 89 83 91 90 83 93 91 83  
 
DATE 05/26 SUN 05/27/18 MON 05/28/18 TUE 05/29/18 WED 05/30/18  
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 74 91 73 92 73 91 73 92  
TEMP 88 76 75 81 88 77 75 81 86 76 74 81 88 76 75 81 87 75  
DEWPT 69 71 72 71 70 72 71 70 70 70 71 70 67 71 71 69 69 70  
PWIND DIR SE E SE E E E SE E SE  
WIND CHAR BZ GN GN GN GN LT GN GN GN  
AVG CLOUDS FW SC FW FW FW SC FW FW FW SC FW FW FW SC FW FW FW FW  
POP 12HR 20 10 20 10 20 10 20 10 20  
RAIN SHWRS S S S S S S S S S S S S S S S S S S  
 

 
 
PRZ008-240815-  
RAFAEL HERNANDEZ AIRPORT-AGUADILLA PR  
18.50N 67.13W ELEV. 237 FT  
259 PM AST WED MAY 23 2018  
 
DATE 05/23/18 THU 05/24/18 FRI 05/25/18 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 76 85 77 86 77  
TEMP 80 78 77 77 76 78 83 83 82 79 78 77 77 79 83 82 81 79 78 77 77 79  
DEWPT 72 72 71 71 71 71 72 72 72 72 73 72 72 72 72 72 72 72 72 71 71 72  
RH 77 82 82 82 85 79 70 70 72 79 85 85 85 79 70 72 74 79 82 82 82 79  
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 13 13 13 13 13 16 17 13 11 11 14 13 13 16 17 14 10 13 16 14 13 16  
CLOUDS B2 SC SC FW FW CL CL SC SC SC SC SC SC SC SC B2 B2 SC SC SC SC SC  
POP 12HR 30 50 20 50 20  
QPF 12HR 0.09 0.60 0.03 0.32 0.04  
RAIN SHWRS L C C S S C C S S S S S S C C S S S S S  
TSTMS S S S  
HEAT INDEX 87 86 90 93 90 85 87 90 93 89 84 86  
MAX HEAT 90 86 93 93 87 93 93 86  
 
DATE 05/26 SUN 05/27/18 MON 05/28/18 TUE 05/29/18 WED 05/30/18  
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 77 84 77 86 77 86 77 86  
TEMP 82 80 78 79 84 80 78 79 83 79 77 79 83 80 77 79 84 81  
DEWPT 72 73 72 73 73 74 72 72 73 73 72 72 73 73 71 72 73 74  
PWIND DIR E E E E E E E E E  
WIND CHAR GN GN GN GN GN GN GN GN GN  
AVG CLOUDS SC SC FW FW SC SC FW FW SC SC FW FW SC SC FW FW SC SC  
POP 12HR 40 10 50 10 50 10 40 10 40  
RAIN SHWRS C C S S C C S S C C S S C C S S C C  
TSTMS S S S S S S  
 

 
 
PRZ010-240815-  
EUGENIO MARIA DE HOSTO AIRPORT-MAYAGUEZ PR  
18.27N 67.15W ELEV. 28 FT  
259 PM AST WED MAY 23 2018  
 
DATE 05/23/18 THU 05/24/18 FRI 05/25/18 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 74 87 75 86 74  
TEMP 80 77 75 74 74 78 85 85 84 78 77 75 75 79 85 84 83 77 76 75 75 79  
DEWPT 71 71 70 70 70 70 71 71 71 71 72 71 71 71 71 71 72 72 71 71 70 71  
RH 74 82 84 87 87 76 63 63 65 79 85 87 87 77 63 65 70 85 85 87 84 77  
WIND DIR N NE NE NE NE E S N NE NE E NE NE E W W NE N NE NE NE E  
WIND SPD 8 5 6 6 6 10 6 9 9 5 6 6 9 10 6 9 10 4 8 8 9 10  
CLOUDS B2 SC SC CL CL CL CL OV OV SC SC FW FW SC SC B1 B1 SC SC SC SC FW  
POP 12HR 30 80 10 40 20  
QPF 12HR 0.07 1.21 0.01 0.22 0.03  
RAIN SHWRS L C C D D S S S S C C S S S S S  
TSTMS S  
HEAT INDEX 83 90 90 89 90 89 88  
MAX HEAT 87 90 90 90 89  
 
DATE 05/26 SUN 05/27/18 MON 05/28/18 TUE 05/29/18 WED 05/30/18  
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 75 87 74 87 74 87 74 87  
TEMP 84 78 76 80 85 79 76 80 83 77 75 79 85 78 76 80 85 79  
DEWPT 72 72 71 72 73 73 71 72 72 72 71 72 71 71 71 71 72 72  
PWIND DIR SE E SE SE E E SE E SE  
WIND CHAR LT LT GN LT GN LT GN GN GN  
AVG CLOUDS SC SC FW FW SC SC FW FW SC SC FW FW SC SC FW FW SC SC  
POP 12HR 50 10 40 10 50 10 40 10 40  
RAIN SHWRS C C S S C C S S C C S S C C S S C C  
TSTMS S S S S S S S S  
 

 
 
VIZ001-240815-  
CYRIL E. KING AIRPORT-ST THOMAS USVI  
18.33N 64.97W ELEV. 23 FT  
259 PM AST WED MAY 23 2018  
 
DATE 05/23/18 THU 05/24/18 FRI 05/25/18 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 77 87 77 87 77  
TEMP 80 79 79 79 78 79 79 80 79 79 79 79 78 79 79 80 80 79 79 79 79 79  
DEWPT 72 73 72 72 72 72 72 73 73 73 73 73 73 73 73 73 73 73 73 72 72 72  
RH 77 82 79 79 82 79 79 79 82 82 82 82 85 82 82 79 79 82 82 79 79 79  
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 16 16 16 16 16 16 14 16 14 14 17 18 17 17 16 16 14 14 16  
CLOUDS SC SC SC B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC  
POP 12HR 40 30 30 30 30  
QPF 12HR 0.42 0.06 0.09 0.08 0.12  
RAIN SHWRS S S S C C C C S S S S C C C C S S C C C C C  
HEAT INDEX 84 84 84 84  
MAX HEAT 84 84 84 84 84  
 
DATE 05/26 SUN 05/27/18 MON 05/28/18 TUE 05/29/18 WED 05/30/18  
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 77 86 77 87 77 87 78 87  
TEMP 80 80 80 80 80 80 79 79 80 80 79 80 79 80 80 80 80 80  
DEWPT 73 73 73 73 73 74 73 73 73 73 72 72 73 73 72 72 72 73  
PWIND DIR E E E E E E E E E  
WIND CHAR BZ BZ BZ BZ BZ BZ BZ BZ BZ  
AVG CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC FW  
POP 12HR 40 40 40 40 40 40 40 40 20  
RAIN SHWRS C C C C C C C C C C C C S C C C S S  
TSTMS S S S S S S S S  
 

 
 
VIZ002-240815-  
HENRY E. ROHLSEN AIRPORT-ST CROIX USVI  
17.70N 64.80W ELEV. 74 FT  
259 PM AST WED MAY 23 2018  
 
DATE 05/23/18 THU 05/24/18 FRI 05/25/18 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 77 88 77 87 77  
TEMP 80 80 80 80 80 80 80 81 81 81 80 80 80 80 80 81 80 80 80 80 79 80  
DEWPT 73 73 74 73 73 73 74 74 74 74 74 74 74 74 74 74 74 74 74 74 73 73  
RH 79 79 82 79 79 79 82 79 79 79 82 82 82 82 82 79 82 82 82 82 82 79  
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 16 14 13 14 14 14 14 13 14 12 13 16 18 18 17 16 14 14 14 16  
CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC  
POP 12HR 30 30 30 30 30  
QPF 12HR 0.15 0.06 0.09 0.08 0.12  
RAIN SHWRS S S S C C C C S S S S C C C C S S C C C C C  
HEAT INDEX 84 84 84 84 84 84 84 86 86 86 84 84 84 84 84 86 84 84 84 84 84  
MAX HEAT 84 84 84 86 86 86 84 86 86 84 84  
 
DATE 05/26 SUN 05/27/18 MON 05/28/18 TUE 05/29/18 WED 05/30/18  
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 77 87 76 88 76 88 77 89  
TEMP 81 81 81 81 81 81 80 80 81 81 81 81 81 81 81 81 81 81  
DEWPT 74 75 74 74 74 75 73 74 74 74 73 73 74 74 73 73 74 74  
PWIND DIR E E E E E E E E E  
WIND CHAR BZ BZ BZ BZ BZ BZ BZ BZ BZ  
AVG CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC FW  
POP 12HR 40 40 40 40 40 40 40 40 20  
RAIN SHWRS C C C C C C C C C C C C S C C C S S  
TSTMS S S S S S S S S  
 

 
 
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