498  
FOCA52 TJSJ 260059 AAA  
AFMSJU  
 
AREA FORECAST MATRICES...UPDATED  
NATIONAL WEATHER SERVICE SAN JUAN PR  
859 PM AST MON OCT 25 2021  
 
PRZ001-260815-  
SAN JUAN AND VICINITY-  
INCLUDING THE CITIES OF BAYAMON, CAROLINA, CATANO, GUAYNABO,  
SAN JUAN, TOA ALTA, TOA BAJA, AND TRUJILLO ALTO  
859 PM AST MON OCT 25 2021  
 
DATE 10/25/21 TUE 10/26/21 WED 10/27/21 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 68 74 81 85 91 93 67 73 79 85 91 93 70 74 79  
TEMP 77 75 74 84 90 91 82 78 76 74 73 83 90 91 83 79 77 75 74 83  
DEWPT 72 72 71 73 73 70 70 70 70 71 71 72 71 69 71 71 72 72 71 73  
RH 85 90 90 70 58 50 67 76 82 90 93 70 54 49 67 77 85 90 90 72  
WIND DIR SE S S S SE SE SE S S S S SE SE SE S S SE S SE SE  
WIND SPD 5 4 3 3 5 6 6 5 4 4 3 4 6 10 6 5 5 3 4 4  
CLOUDS FW SC SC SC SC FW FW FW FW FW FW FW FW SC SC FW FW SC SC SC  
POP 12HR 30 30 30 30 20  
QPF 12HR 0.03 0.12-0.20 0.01-0.08 0.04-0.19 0.00-0.09  
RAIN SHWRS IS IS IS SC SC SC SC IS IS SC SC IS IS SC SC IS IS IS IS IS  
TSTMS IS IS  
OBVIS H H H H H H H H H H H H H H H H  
HEAT INDEX 90 98 97 86 89 96 96 87 80 89  
MAX HEAT 89 88 95 102 97 86 93 100 98 87 94  
 
DATE 10/28 FRI 10/29/21 SAT 10/30/21 SUN 10/31/21 MON 11/01/21  
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 91 75 90 73 91 73 90 73 87  
TEMP 91 80 76 83 90 78 74 83 91 78 74 82 90 78 74 80 87 78  
DEWPT 72 72 72 73 71 71 70 71 70 71 70 72 69 72 71 72 71 71  
PWIND DIR SE SE SE SE E SE E E NE  
WIND CHAR LT LT GN LT GN LT GN LT GN  
AVG CLOUDS SC SC SC SC B1 B1 B1 SC SC SC SC SC SC SC SC SC SC B1  
POP 12HR 40 20 50 30 30 20 30 20 40  
RAIN SHWRS SC SC IS IS IS SC SC SC SC SC IS IS SC SC IS IS SC SC  
TSTMS IS IS IS IS IS IS  
 

 
 
PRZ002-260815-  
NORTHEAST-  
INCLUDING THE CITIES OF CEIBA, CANOVANAS, FAJARDO, HUMACAO,  
LOIZA, LUQUILLO, NAGUABO, AND RIO GRANDE  
859 PM AST MON OCT 25 2021  
 
DATE 10/25/21 TUE 10/26/21 WED 10/27/21 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 64 74 79 77 88 92 62 72 79 77 88 92 64 73 80  
TEMP 76 75 74 81 87 88 80 77 75 73 72 81 87 88 80 77 75 74 73 81  
DEWPT 72 71 71 72 72 70 70 70 71 71 70 72 70 70 71 71 72 72 71 72  
RH 87 87 90 74 61 55 72 79 87 93 93 74 57 55 74 82 90 93 93 74  
WIND DIR SE SE SE SE SE SE SE SE SE SE SE SE SE SE S SE SE SE SE SE  
WIND SPD 6 5 5 4 6 8 5 4 4 5 5 6 8 10 5 5 5 5 4 5  
CLOUDS FW SC B1 SC B1 FW FW SC SC SC SC SC SC SC SC SC SC SC SC SC  
POP 12HR 40 30 30 30 30  
QPF 12HR 0.04-0.11 0.09-0.17 0.07-0.12 0.09-0.20 0.03-0.19  
RAIN SHWRS IS SC SC SC SC IS IS SC SC SC SC SC SC IS IS SC SC IS IS SC  
TSTMS IS IS  
OBVIS H H H H H H H H H H H H H H H H  
HEAT INDEX 86 93 93 83 85 92 93 84 85  
MAX HEAT 87 87 93 100 97 86 91 99 98 87 92  
 
DATE 10/28 FRI 10/29/21 SAT 10/30/21 SUN 10/31/21 MON 11/01/21  
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 73 87 74 88 74 87 74 85  
TEMP 88 78 74 81 87 78 75 82 88 78 75 81 87 78 75 79 85 78  
DEWPT 71 71 72 72 71 70 71 70 71 70 71 72 70 72 71 72 69 71  
PWIND DIR SE SE E E E E E E NE  
WIND CHAR GN LT LT LT LT LT GN LT GN  
AVG CLOUDS SC SC SC SC B1 B1 B1 B1 SC SC SC SC B1 B1 SC SC SC SC  
POP 12HR 30 30 40 40 30 30 40 30 30  
RAIN SHWRS SC IS IS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC  
TSTMS IS IS IS  
 

 
 
PRZ003-260815-  
SOUTHEAST-  
INCLUDING THE CITIES OF ARROYO, GUAYAMA, MAUNABO, PATILLAS,  
SALINAS, AND YABUCOA  
859 PM AST MON OCT 25 2021  
 
DATE 10/25/21 TUE 10/26/21 WED 10/27/21 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 66 73 79 81 88 91 63 72 79 81 88 91 65 72 79  
TEMP 75 74 73 81 87 88 80 76 74 73 72 81 87 88 80 77 75 73 72 81  
DEWPT 71 71 71 72 71 69 69 70 71 71 70 71 70 70 71 71 71 71 71 72  
RH 87 90 93 74 59 54 69 82 90 93 93 72 57 55 74 82 87 93 97 74  
WIND DIR E E E SE SE SE SE E E E SE SE SE SE SE E E E E E  
WIND SPD 6 4 3 4 8 8 4 3 4 3 4 6 9 9 4 3 5 5 5 5  
CLOUDS FW SC SC SC SC FW FW SC SC SC SC SC SC SC SC SC SC SC SC SC  
POP 12HR 40 30 30 30 30  
QPF 12HR 0.09 0.04-0.10 0.03-0.10 0.03-0.13 0.04-0.15  
RAIN SHWRS IS SC SC SC SC IS IS IS IS SC SC SC SC IS IS SC SC IS IS IS  
OBVIS H H H H H H H H H H H H H H H H  
HEAT INDEX 86 93 93 83 85 92 93 83 85  
MAX HEAT 86 85 91 99 95 85 90 99 96 86 90  
 
DATE 10/28 FRI 10/29/21 SAT 10/30/21 SUN 10/31/21 MON 11/01/21  
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 72 87 73 88 73 87 72 86  
TEMP 88 77 73 80 87 77 74 81 88 77 74 81 87 77 73 79 86 77  
DEWPT 72 71 71 72 71 70 70 69 71 70 70 71 69 71 71 71 70 70  
PWIND DIR SE E E NE E NE E NE NE  
WIND CHAR GN LT LT LT GN LT GN LT GN  
AVG CLOUDS SC SC SC SC B1 B1 B1 B1 SC SC SC SC B1 B1 SC SC SC SC  
POP 12HR 30 30 50 40 30 30 40 10 20  
RAIN SHWRS IS IS IS SC SC SC SC SC IS SC SC SC SC SC IS IS IS IS  
TSTMS IS IS IS IS  
 

 
 
PRZ004-260815-  
EASTERN INTERIOR-  
INCLUDING THE CITIES OF AGUAS BUENAS, CAGUAS, CAYEY, CIDRA,  
COMERIO, GURABO, JUNCOS, LAS PIEDRAS, AND SAN LORENZO  
859 PM AST MON OCT 25 2021  
 
DATE 10/25/21 TUE 10/26/21 WED 10/27/21 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 67 70 74 80 88 91 64 69 73 80 88 91 65 71 74  
TEMP 73 71 70 80 86 88 78 74 72 70 69 79 86 88 79 76 74 72 71 80  
DEWPT 70 70 70 71 71 68 68 69 69 69 68 71 69 68 69 70 70 70 70 71  
RH 90 97100 74 61 52 71 84 90 97 97 77 57 52 72 82 87 93 97 74  
WIND DIR SE SE SE SE SE SE SE SE SE S SE SE SE SE S SE SE SE SE SE  
WIND SPD 4 2 2 3 6 8 4 3 3 3 3 5 8 9 5 3 3 3 3 4  
CLOUDS FW SC SC SC SC FW FW FW FW SC SC SC SC SC SC SC SC SC SC SC  
POP 12HR 30 30 30 20 20  
QPF 12HR 0.03-0.10 0.08-0.20 0.02-0.11 0.02-0.19 0.00-0.17  
RAIN SHWRS IS SC SC SC SC IS IS IS IS SC SC IS IS IS IS IS IS IS IS IS  
OBVIS H H H H H H H H H H H H H H H H  
HEAT INDEX 83 92 91 81 90 91 81 83  
MAX HEAT 90 98 94 89 97 94 90  
 
DATE 10/28 FRI 10/29/21 SAT 10/30/21 SUN 10/31/21 MON 11/01/21  
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 71 87 70 88 70 87 70 85  
TEMP 88 76 72 80 87 75 71 80 88 76 71 79 87 75 71 77 85 75  
DEWPT 70 70 70 71 70 69 69 69 69 69 69 70 67 70 70 70 68 69  
PWIND DIR SE SE SE E E E E NE NE  
WIND CHAR LT LT LT LT LT LT LT LT LT  
AVG CLOUDS SC SC SC SC B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC  
POP 12HR 40 30 50 30 30 30 40 20 30  
RAIN SHWRS SC SC IS IS SC SC SC SC SC SC IS IS SC SC IS IS SC SC  
TSTMS IS IS IS IS IS IS IS  
 

 
 
PRZ005-260815-  
NORTH CENTRAL-  
INCLUDING THE CITIES OF ARECIBO, BARCELONETA, DORADO, FLORIDA,  
MANATI, VEGA ALTA, AND VEGA BAJA  
859 PM AST MON OCT 25 2021  
 
DATE 10/25/21 TUE 10/26/21 WED 10/27/21 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 68 74 81 90 67 73 79 90 69 73 79  
TEMP 77 75 74 83 89 90 82 78 76 74 73 82 89 90 82 78 76 74 73 82  
DEWPT 70 70 70 72 72 72 72 71 70 69 69 72 71 71 71 71 70 70 70 72  
RH 79 84 87 70 57 56 72 79 82 84 87 72 56 54 69 79 82 87 90 72  
WIND DIR SE S S SE NE NE N SW S S S S SE NE NW SW S S SE SE  
WIND SPD 4 4 4 3 3 6 4 3 5 4 3 2 4 6 5 4 4 4 4 3  
CLOUDS FW FW FW FW SC SC SC FW FW FW FW FW FW SC SC FW FW SC SC SC  
POP 12HR 20 30 5 50 10  
QPF 12HR 0.02 0.08-0.27 0 0.09-0.25 0  
RAIN SHWRS IS IS IS IS SC SC SC IS IS IS IS IS IS SC SC IS IS IS IS IS  
TSTMS IS IS  
OBVIS H H H H H H H H H H H H H H H H  
HEAT INDEX 88 96 97 86 87 95 96 86 88  
MAX HEAT 89 88 95 102 99 86 93 100 97 87 94  
 
DATE 10/28 FRI 10/29/21 SAT 10/30/21 SUN 10/31/21 MON 11/01/21  
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 90 74 89 73 91 73 90 72 87  
TEMP 90 79 75 82 89 77 74 83 91 78 74 82 90 78 73 79 87 78  
DEWPT 73 72 71 72 73 72 70 70 70 71 69 71 71 71 71 72 73 71  
PWIND DIR E S E SE E SE E E E  
WIND CHAR LT LT GN LT GN LT GN LT GN  
AVG CLOUDS SC SC SC SC B1 B1 SC SC SC SC SC SC SC SC SC SC SC B1  
POP 12HR 40 20 60 20 40 10 40 10 50  
RAIN SHWRS SC SC IS IS IS NM IS IS SC SC IS IS IS IS IS IS SC SC  
TSTMS IS IS SC SC IS IS IS IS IS IS  
 

 
 
PRZ006-260815-  
CENTRAL INTERIOR-  
INCLUDING THE CITIES OF AIBONITO, BARANQUITAS, CIALES, COAMO,  
COROZAL, JAYUYA, MOROVIS, NARANJITO, OROCOVIS, AND VILLALBA  
859 PM AST MON OCT 25 2021  
 
DATE 10/25/21 TUE 10/26/21 WED 10/27/21 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 64 69 75 81 87 92 62 68 73 81 87 92 61 69 73  
TEMP 72 70 69 79 86 87 78 74 71 69 68 79 86 87 78 74 72 70 69 79  
DEWPT 68 68 67 69 69 67 67 67 67 67 67 69 68 66 67 67 68 69 68 69  
RH 87 93 93 72 57 52 69 79 87 93 97 72 55 50 69 79 87 97 97 72  
WIND DIR SE SE SE SE SE SE SE S SE SE SE SE SE SE S SE SE SE SE SE  
WIND SPD 3 2 2 3 5 4 2 2 2 2 2 3 6 6 2 3 3 3 3 3  
CLOUDS FW SC SC FW SC SC SC FW FW FW FW FW FW SC SC SC SC SC SC SC  
POP 12HR 20 30 10 20 20  
QPF 12HR 0.02-0.08 0.02-0.18 0.01 0.02-0.25 0.00-0.06  
RAIN SHWRS IS IS IS IS SC IS IS IS IS IS IS IS IS IS IS IS IS IS IS IS  
TSTMS IS IS  
OBVIS H H H H H H H H H H H H H H H H  
HEAT INDEX 81 90 90 81 89 90 80 81  
MAX HEAT 82 90 100 96 89 98 96 89  
 
DATE 10/28 FRI 10/29/21 SAT 10/30/21 SUN 10/31/21 MON 11/01/21  
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 87 69 86 69 87 69 86 69 85  
TEMP 87 75 70 79 86 74 70 79 87 74 70 79 86 74 70 76 84 74  
DEWPT 69 69 68 68 69 68 66 67 67 68 67 68 66 68 68 68 69 66  
PWIND DIR SE SE SE E E E E E NE  
WIND CHAR LT LT LT LT LT LT LT LT LT  
AVG CLOUDS SC SC SC SC B1 B1 SC SC SC SC SC SC SC SC SC SC SC B1  
POP 12HR 40 20 60 20 40 10 40 10 50  
RAIN SHWRS SC SC IS IS NM NM IS IS SC SC IS IS SC SC IS IS SC SC  
TSTMS IS IS SC SC IS IS IS IS IS IS  
 

 
 
PRZ007-260815-  
PONCE AND VICINITY-  
INCLUDING THE CITIES OF GUAYANILLA, JUANA DIAZ, YAUCO, PENUELAS,  
PONCE, AND SANTA ISABEL  
859 PM AST MON OCT 25 2021  
 
DATE 10/25/21 TUE 10/26/21 WED 10/27/21 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 64 73 79 81 88 92 62 71 76 81 88 92 61 71 77  
TEMP 75 74 73 81 87 88 80 76 74 72 71 81 87 88 80 76 74 72 71 81  
DEWPT 69 69 68 70 70 68 69 69 68 69 69 70 69 68 69 69 70 70 69 71  
RH 82 84 84 69 57 52 69 79 82 90 93 69 55 52 69 79 87 93 93 72  
WIND DIR E NE NE E SE SE SE E NE NE NE E SE SE E E E NE NE E  
WIND SPD 4 4 4 3 8 8 5 3 3 3 3 5 10 9 4 4 4 4 4 5  
CLOUDS FW SC SC FW SC SC SC FW FW SC SC SC SC SC SC SC SC SC SC SC  
POP 12HR 30 30 10 20 20  
QPF 12HR 0.02-0.09 0.01-0.12 0.00-0.06 0.04 0.00-0.09  
RAIN SHWRS IS IS IS SC IS IS IS IS IS IS IS IS IS IS IS IS IS IS IS IS  
OBVIS H H H H H H H H H H H H H H H H  
HEAT INDEX 85 92 92 82 84 91 92 82 84  
MAX HEAT 85 85 90 98 96 89 98 96 84 89  
 
DATE 10/28 FRI 10/29/21 SAT 10/30/21 SUN 10/31/21 MON 11/01/21  
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 71 87 71 88 71 87 71 86  
TEMP 88 76 72 80 87 76 72 80 88 76 72 80 87 76 72 78 86 76  
DEWPT 71 70 70 70 70 70 68 68 69 70 68 69 69 69 68 68 71 68  
PWIND DIR SE NE E NE E NE E NE E  
WIND CHAR LT LT LT LT LT LT LT LT LT  
AVG CLOUDS SC SC SC SC B1 B1 SC SC SC SC SC SC SC B1 SC SC SC SC  
POP 12HR 30 20 50 20 30 10 40 10 30  
RAIN SHWRS IS IS IS IS IS SC IS IS IS IS IS IS SC SC IS IS IS IS  
TSTMS IS IS IS IS IS  
 

 
 
PRZ008-260815-  
NORTHWEST-  
INCLUDING THE CITIES OF AGUADILLA, CAMUY, HATILLO, ISABELA,  
AND QUEBRADILLAS  
859 PM AST MON OCT 25 2021  
 
DATE 10/25/21 TUE 10/26/21 WED 10/27/21 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 68 73 79 89 66 72 79 89 69 73 80  
TEMP 75 74 73 82 88 89 80 77 75 73 72 81 88 89 81 78 76 74 73 82  
DEWPT 69 69 68 70 70 71 71 71 70 69 68 70 70 70 70 70 70 70 69 70  
RH 82 84 84 67 55 56 74 82 84 87 87 69 55 54 69 76 82 87 87 67  
WIND DIR SE SE SE SE NE NW NW N S S S SE E N N E SE SE SE E  
WIND SPD 4 4 4 3 2 6 6 2 3 4 3 3 5 8 6 4 3 3 3 3  
CLOUDS CL FW FW FW FW B1 B1 FW FW FW FW FW FW SC SC SC SC SC SC SC  
POP 12HR 10 50 10 50 10  
QPF 12HR 0.01 0.10-0.30 0 0.03-0.25 0  
RAIN SHWRS IS SC SC SC IS IS IS IS SC SC IS IS IS IS IS  
TSTMS IS IS  
OBVIS H H H H H H H H H H H H H H H H  
HEAT INDEX 85 93 95 83 85 92 94 84 86  
MAX HEAT 88 87 90 99 96 87 90 99 96 88 92  
 
DATE 10/28 FRI 10/29/21 SAT 10/30/21 SUN 10/31/21 MON 11/01/21  
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 73 88 72 91 72 90 71 87  
TEMP 89 78 74 81 88 76 73 82 91 77 73 82 90 77 72 79 87 77  
DEWPT 71 71 70 70 71 71 70 68 69 71 69 69 71 71 70 70 71 71  
PWIND DIR NE SE NE E E E E E E  
WIND CHAR LT LT LT LT LT LT LT LT GN  
AVG CLOUDS SC SC SC SC SC B1 SC SC SC B1 SC SC SC B1 SC SC SC B1  
POP 12HR 40 20 50 10 50 10 50 10 50  
RAIN SHWRS SC SC IS IS IS SC IS IS SC SC IS IS SC SC IS IS SC SC  
TSTMS IS IS IS IS IS IS IS IS IS IS  
 

 
 
PRZ009-260815-  
WESTERN INTERIOR-  
INCLUDING THE CITIES OF ADJUNTAS, LARES, LAS MARIAS, MARICAO,  
SABANA GRANDE, SAN SEBASTIAN, AND UTUADO  
859 PM AST MON OCT 25 2021  
 
DATE 10/25/21 TUE 10/26/21 WED 10/27/21 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 64 69 74 83 89 92 62 68 73 83 89 92 63 69 73  
TEMP 72 70 69 80 87 89 79 74 71 69 68 80 87 89 79 75 72 70 69 80  
DEWPT 67 67 66 69 67 67 69 69 67 67 67 69 67 66 67 67 68 68 67 69  
RH 84 90 90 69 52 48 72 84 87 93 97 69 52 47 67 76 87 93 93 69  
WIND DIR SE SE SE SE SE S N NE SE SE SE SE SE SE NE E SE SE E E  
WIND SPD 4 3 3 3 4 3 4 2 3 3 3 3 8 4 4 3 3 3 3 3  
WIND GUST 20  
CLOUDS CL FW FW FW FW SC SC FW FW FW FW FW FW SC SC SC SC SC SC SC  
POP 12HR 10 40 5 40 10  
QPF 12HR 0.02 0.03-0.30 0 0.03-0.25 0  
RAIN SHWRS IS IS IS IS SC SC SC IS IS IS IS IS IS SC SC IS IS IS IS IS  
TSTMS IS IS  
OBVIS H H H H H H H H H H H H H H H H  
HEAT INDEX 83 90 92 80 82 90 92 81 83  
MAX HEAT 82 89 97 95 88 96 94 88  
 
DATE 10/28 FRI 10/29/21 SAT 10/30/21 SUN 10/31/21 MON 11/01/21  
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 69 88 69 89 69 88 69 86  
TEMP 89 75 70 80 88 75 70 80 89 75 70 80 88 75 70 77 85 74  
DEWPT 69 69 68 68 69 69 67 66 66 69 67 67 68 68 67 67 69 68  
PWIND DIR E SE E E E E E E NE  
WIND CHAR LT LT LT LT LT LT LT LT LT  
AVG CLOUDS SC SC SC SC B1 B1 SC SC SC B1 SC SC SC B1 SC SC SC B1  
POP 12HR 40 20 60 10 50 10 50 10 50  
RAIN SHWRS SC SC IS IS IS IS IS IS SC SC IS IS SC SC IS IS SC SC  
TSTMS IS IS SC SC IS IS IS IS IS IS  
 

 
 
PRZ010-260815-  
MAYAGUEZ AND VICINITY-  
INCLUDING THE CITIES OF AGUADA, ANASCO, HORMIGUEROS, MAYAGUEZ,  
MOCA, RINCON, AND SAN GERMAN  
859 PM AST MON OCT 25 2021  
 
DATE 10/25/21 TUE 10/26/21 WED 10/27/21 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 68 73 78 86 89 93 66 72 78 86 89 93 67 72 78  
TEMP 76 74 73 82 88 89 81 77 75 73 72 82 88 89 81 77 75 73 72 82  
DEWPT 69 69 69 71 70 70 71 71 70 69 70 71 70 70 70 71 70 71 70 71  
RH 79 84 87 69 55 54 72 82 84 87 93 69 55 54 69 82 84 93 93 69  
WIND DIR SE E E SE S SW SE E E SE SE SE SE S E E E E E E  
WIND SPD 8 6 6 5 4 8 4 4 5 5 5 6 11 9 5 9 5 5 5 5  
WIND GUST 21 20 21 20 21  
CLOUDS CL FW FW SC FW SC SC FW FW FW FW FW FW SC SC SC SC FW FW SC  
POP 12HR 10 40 10 30 10  
QPF 12HR 0.01 0.02-0.30 0.01 0.02-0.25 0.00-0.11  
RAIN SHWRS IS IS IS SC SC SC IS IS IS IS IS IS IS IS IS IS IS IS IS  
TSTMS IS IS  
OBVIS H H H H H H H H H H H H H H H H  
HEAT INDEX 86 93 95 85 86 93 94 85 86  
MAX HEAT 85 84 89 100 97 84 90 100 97 85 90  
 
DATE 10/28 FRI 10/29/21 SAT 10/30/21 SUN 10/31/21 MON 11/01/21  
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 74 88 73 90 73 89 73 87  
TEMP 89 78 75 82 88 77 74 82 90 78 74 82 89 77 74 79 87 78  
DEWPT 72 72 71 71 71 72 70 69 69 71 70 69 71 71 70 70 71 71  
PWIND DIR SE E E E E E E E E  
WIND CHAR LT LT LT LT LT LT LT LT LT  
AVG CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC B1 SC SC SC B1  
POP 12HR 30 20 40 10 40 10 50 10 50  
RAIN SHWRS IS IS IS IS SC SC IS IS SC SC IS IS SC SC IS IS SC SC  
TSTMS IS IS IS IS IS IS IS IS  
 

 
 
PRZ011-260815-  
SOUTHWEST-  
INCLUDING THE CITIES OF CABO ROJO, GUANICA, AND LAJAS  
859 PM AST MON OCT 25 2021  
 
DATE 10/25/21 TUE 10/26/21 WED 10/27/21 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 89 71 74 77 89 71 73 77  
TEMP 77 75 74 83 88 89 82 79 76 75 74 82 88 89 82 78 76 74 73 82  
DEWPT 70 70 70 71 70 70 70 70 70 70 71 71 70 70 70 71 71 71 71 72  
RH 79 84 87 67 55 54 67 74 82 84 90 69 55 54 67 79 85 90 93 72  
WIND DIR E E E E SE SE SE E E E E E SE SE SE E E E E E  
WIND SPD 9 8 8 6 11 12 10 8 8 8 8 8 16 14 11 9 8 8 8 9  
CLOUDS CL FW SC SC FW SC SC SC SC SC SC SC SC FW FW SC SC SC SC SC  
POP 12HR 30 30 20 20 20  
QPF 12HR 0.03 0.02-0.11 0.02 0.03 0.00-0.09  
RAIN SHWRS IS IS SC IS IS IS IS IS IS IS IS IS IS IS IS IS IS IS IS  
OBVIS H H H H H H H H H H H H H H H H  
HEAT INDEX 88 93 94 85 87 93 95 85 87  
MAX HEAT 83 83 91 97 95 83 90 98 96 84 90  
 
DATE 10/28 FRI 10/29/21 SAT 10/30/21 SUN 10/31/21 MON 11/01/21  
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 74 88 74 88 74 88 74 87  
TEMP 89 79 75 82 88 78 75 82 88 78 75 82 88 78 75 80 87 79  
DEWPT 72 72 71 72 71 72 70 70 70 71 70 69 70 71 69 69 71 71  
PWIND DIR SE E SE E SE E E NE E  
WIND CHAR GN GN GN LT GN LT GN LT LT  
AVG CLOUDS SC SC SC SC SC B1 SC SC SC SC SC SC SC B1 SC SC SC SC  
POP 12HR 20 20 40 20 20 10 40 10 20  
RAIN SHWRS IS IS IS IS SC SC IS IS IS IS IS IS SC SC IS IS IS IS  
TSTMS IS IS IS IS  
 

 
 
PRZ012-260815-  
CULEBRA-  
INCLUDING THE CITY OF CULEBRA  
859 PM AST MON OCT 25 2021  
 
DATE 10/25/21 TUE 10/26/21 WED 10/27/21 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 78 86 89 92 78 86 89 92 75 77 81  
TEMP 80 79 78 84 88 89 84 82 80 79 78 84 88 89 83 81 79 78 77 84  
DEWPT 73 72 72 73 72 70 71 72 72 72 72 71 72 71 72 72 72 73 71 71  
RH 79 79 82 70 59 54 65 72 77 79 82 65 59 56 70 74 79 85 82 65  
WIND DIR SE E SE SE SE SE SE SE SE SE SE SE SE S S SE SE SE SE SE  
WIND SPD 13 12 11 11 11 8 6 8 9 9 11 12 11 11 8 8 10 11 11 11  
CLOUDS FW SC B1 B1 B1 FW FW B1 B1 SC SC B1 B1 SC SC B1 B1 B1 B1 SC  
POP 12HR 40 30 30 20 30  
QPF 12HR 0.08 0.08 0.04 0.06 0.11  
RAIN SHWRS IS IS SC SC SC IS IS SC SC IS IS IS IS IS IS IS IS IS IS SC  
OBVIS H H H H H H H H H H H H H H H H  
HEAT INDEX 83 81 80 91 95 95 89 86 83 80 89 95 95 89 85 81 89  
MAX HEAT 88 88 93 99 98 87 92 100 97 87 91  
 
DATE 10/28 FRI 10/29/21 SAT 10/30/21 SUN 10/31/21 MON 11/01/21  
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 78 88 78 89 78 88 78 86  
TEMP 89 81 79 84 88 81 79 84 89 82 79 84 88 81 79 82 86 81  
DEWPT 72 72 73 70 70 72 71 71 71 71 73 71 72 73 73 72 71 73  
PWIND DIR SE SE E E E E E E NE  
WIND CHAR GN GN GN GN GN GN GN GN GN  
AVG CLOUDS SC SC SC SC SC SC B1 B1 SC SC SC SC SC B1 SC SC SC SC  
POP 12HR 30 20 40 40 30 30 40 30 30  
RAIN SHWRS SC IS IS IS IS SC SC SC SC SC SC SC SC SC SC SC SC SC  
TSTMS IS IS  
 

 
 
PRZ013-260815-  
VIEQUES-  
INCLUDING THE CITY OF VIEQUES  
859 PM AST MON OCT 25 2021  
 
DATE 10/25/21 TUE 10/26/21 WED 10/27/21 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 77 89 73 76 80 89 73 76 80  
TEMP 79 78 77 84 88 89 83 80 78 77 76 83 88 89 83 80 78 76 76 83  
DEWPT 72 72 72 73 71 70 71 72 72 72 72 71 72 71 72 72 72 73 72 72  
RH 79 82 85 70 57 54 67 77 82 85 87 67 59 56 70 77 82 90 87 70  
WIND DIR E SE SE SE SE SE SE SE SE SE SE SE SE S S SE SE SE SE SE  
WIND SPD 12 11 10 9 10 8 5 6 9 10 11 12 9 11 8 8 10 11 10 11  
CLOUDS FW SC B1 B1 B1 FW FW B1 B1 SC SC SC SC SC SC B1 B1 B1 B1 SC  
POP 12HR 50 30 30 30 30  
QPF 12HR 0.10 0.06 0.04 0.04-0.10 0.14  
RAIN SHWRS IS IS SC SC IS IS IS SC SC IS IS IS IS IS IS SC SC IS IS SC  
OBVIS H H H H H H H H H H H H H H H H  
HEAT INDEX 80 90 94 95 88 83 88 95 96 88 82 89  
MAX HEAT 87 86 93 98 96 87 90 99 97 87 91  
 
DATE 10/28 FRI 10/29/21 SAT 10/30/21 SUN 10/31/21 MON 11/01/21  
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 77 88 78 89 78 88 78 86  
TEMP 89 81 78 83 88 81 79 85 89 82 79 84 88 81 79 82 86 81  
DEWPT 72 72 73 71 71 71 71 71 71 71 72 71 72 72 72 73 70 72  
PWIND DIR SE E E E E E E E NE  
WIND CHAR GN GN GN GN GN GN GN GN GN  
AVG CLOUDS SC SC SC SC SC SC B1 B1 B1 SC SC B1 B1 B1 SC SC SC SC  
POP 12HR 30 20 40 40 40 40 40 30 30  
RAIN SHWRS SC IS IS IS IS SC SC SC SC SC SC SC SC SC SC SC SC SC  
TSTMS IS IS IS IS IS  
 

 
 
VIZ001-260815-  
ST.THOMAS...ST. JOHN...AND ADJACENT ISLANDS-  
INCLUDING THE CITIES OF ANNA'S RETREAT, CHARLOTTE AMALIE,  
CHARLOTTE AMALIE EAST, CHARLOTTE AMALIE WEST, AND CRUZ BAY  
859 PM AST MON OCT 25 2021  
 
DATE 10/25/21 TUE 10/26/21 WED 10/27/21 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 70 75 78 83 87 89 71 77 80 83 87 89 71 76 80  
TEMP 77 76 75 82 86 87 82 80 79 78 77 83 86 87 82 80 78 77 76 82  
DEWPT 72 71 72 72 72 71 71 72 72 72 71 72 71 71 72 72 72 71 71 71  
RH 85 85 90 72 63 59 69 77 79 82 82 70 61 59 72 77 82 82 85 69  
WIND DIR E E SE SE SE SE SE E SE SE SE SE SE SE SE SE SE SE SE SE  
WIND SPD 14 13 13 11 10 9 6 8 8 11 12 12 12 12 11 9 12 12 11 11  
CLOUDS FW SC B1 SC SC SC SC B1 B1 SC SC SC SC SC SC SC SC SC SC SC  
POP 12HR 30 30 30 20 20  
QPF 12HR 0.08 0.06 0.03 0.05 0.04  
RAIN SHWRS IS SC SC IS IS IS IS SC SC IS IS IS IS IS IS IS IS IS IS IS  
OBVIS H H H H H H H H H H H H H H H H  
HEAT INDEX 86 92 93 87 83 81 88 92 93 86 82 87  
MAX HEAT 84 84 90 97 95 88 91 97 96 88 90  
 
DATE 10/28 FRI 10/29/21 SAT 10/30/21 SUN 10/31/21 MON 11/01/21  
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 87 76 86 75 87 75 86 75 84  
TEMP 87 79 77 82 86 78 76 82 87 79 76 81 86 78 76 79 84 78  
DEWPT 71 71 71 70 71 72 70 71 70 72 72 70 72 71 72 71 72 72  
PWIND DIR SE E E E E E E E NE  
WIND CHAR GN GN 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 20 20 30 30 20 20 30 10 30  
RAIN SHWRS IS IS IS IS IS IS SC IS IS IS IS IS SC SC IS IS SC SC  
 

 
 
VIZ002-260815-  
ST CROIX-  
INCLUDING THE CITIES OF CHRISTIANSTED, FREDERIKSTED,  
FREDERIKSTED SOUTHEAST, AND GROVE PLACE  
859 PM AST MON OCT 25 2021  
 
DATE 10/25/21 TUE 10/26/21 WED 10/27/21 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 74 79 85 88 92 71 74 79 85 88 92 71 74 80  
TEMP 76 75 74 82 87 88 81 78 76 75 74 82 87 88 81 79 77 75 74 82  
DEWPT 73 73 72 71 71 72 72 71 72 71 71 71 71 72 72 72 73 72 71 72  
RH 90 94 93 69 59 59 74 79 87 87 90 69 59 59 74 79 87 90 90 72  
WIND DIR E SE SE SE SE SE SE E SE SE SE SE SE SE SE E E SE E E  
WIND SPD 12 10 10 11 10 8 6 8 9 10 10 12 9 11 10 8 10 10 11 11  
CLOUDS FW SC B1 SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 SC  
POP 12HR 40 20 10 20 20  
QPF 12HR 0.07 0.04 0.01 0.02 0.05  
RAIN SHWRS IS SC SC IS IS IS IS IS IS IS IS IS IS IS IS IS IS IS IS IS  
OBVIS H H H H H H H H H H H H H H H H  
HEAT INDEX 86 93 94 85 86 93 95 85 86  
MAX HEAT 85 85 90 99 98 85 90 100 97 87 90  
 
DATE 10/28 FRI 10/29/21 SAT 10/30/21 SUN 10/31/21 MON 11/01/21  
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 71 87 71 88 71 87 71 85  
TEMP 88 76 72 80 87 76 72 80 88 76 72 80 87 76 72 78 85 75  
DEWPT 71 72 71 72 71 71 71 72 70 72 71 71 72 72 71 72 73 71  
PWIND DIR E E E E E E E E NE  
WIND CHAR GN GN GN GN GN GN GN GN GN  
AVG CLOUDS SC SC SC SC SC SC SC B1 B1 SC SC SC B1 SC SC SC SC SC  
POP 12HR 20 20 30 40 40 30 40 10 30  
RAIN SHWRS IS IS IS IS IS SC SC SC SC IS IS SC SC SC IS IS IS IS  
TSTMS IS IS IS IS  
 

 
 
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