Point Forecast Matrices
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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191 FOMY50 PGUM 101800 PFMGUM POINT FORECAST MATRICES NATIONAL WEATHER SERVICE TIYAN GU 353 AM CHST SAT OCT 11 2025 GUZ001-110600- GUAM INTERNATIONAL AIRPORT-TIYAN GU 13.48N 144.79E ELEV. 248 FT 353 AM CHST SAT OCT 11 2025 DATE SAT 10/11/25 SUN 10/12/25 MON 10/13/25 CHST3HRLY 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MAX/MIN 89 76 89 76 89 TEMP 77 77 84 89 88 85 82 79 77 77 84 89 88 85 82 79 77 77 84 89 88 DEWPT 77 77 77 77 77 77 77 77 77 77 77 77 77 78 78 78 78 78 78 78 78 RH 100100 80 68 70 77 85 94100100 80 68 70 80 88 97103103 82 70 72 WIND DIR E E E E E E E NE NE NE E NE NE E E E E E E E SE WIND SPD 5 5 5 4 4 4 5 5 5 6 9 8 8 9 9 6 5 8 10 12 12 CLOUDS SC B1 B1 B1 B1 SC SC SC SC B1 B1 B1 B1 SC SC SC SC B1 B1 B1 B1 POP 12HR 20 20 20 20 30 QPF 12HR 0.07 0.02 0.10 0.10 0.09 RAIN SHWRS S S S S S S S S S S S S S S S S S C C C C TSTMS S HEAT INDEX 93101100 96 90 94102101 97 91 94102101 MAX HEAT 93 101 99 88 94 102 100 89 94 102 DATE TUE 10/14/25 WED 10/15/25 THU 10/16/25 FRI 10/17/25 CHST6HRLY 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MIN/MAX 76 87 76 87 76 87 76 89 TEMP 82 77 83 86 81 77 83 86 81 77 83 86 81 77 84 88 DEWPT 78 78 78 78 79 78 78 78 79 79 79 79 79 79 79 79 PWIND DIR E E E E E SE E E WIND CHAR GN GN GN GN GN GN LT GN AVG CLOUDS B1 SC B1 B1 B1 B1 B1 B1 B2 B2 B1 B1 B1 B1 B1 B1 POP 12HR 30 20 30 40 40 40 30 30 RAIN SHWRS C S S S C C C C C C C C C C C S TSTMS S S S S S S S S S S S $$ MPZ001-110600- ROTA INTERNATIONAL AIRPORT-SINAPALU MP 14.17N 145.23E ELEV. 592 FT 353 AM CHST SAT OCT 11 2025 DATE SAT 10/11/25 SUN 10/12/25 MON 10/13/25 CHST3HRLY 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MAX/MIN 88 75 88 75 87 TEMP 75 76 83 87 87 84 81 78 76 76 83 87 87 84 81 78 76 76 82 87 86 DEWPT 77 77 77 77 77 77 77 77 77 77 77 77 77 78 78 78 78 78 78 78 78 RH 107103 82 72 72 80 88 97103103 82 72 72 82 91100107107 88 75 77 WIND DIR E E E E E E E E NE E E E NE E E E E E E E SE WIND SPD 6 6 6 5 4 5 6 6 6 9 10 9 6 8 9 8 6 8 10 11 12 CLOUDS SC B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC B1 B1 B1 B1 POP 12HR 20 20 20 20 20 QPF 12HR 0.12 0.03 0.09 0.09 0.07 RAIN SHWRS S S S S S S S S S S S S S S S S S S S S S TSTMS S HEAT INDEX 91 99 98 94 88 91100 99 95 89 92100 99 MAX HEAT 91 99 97 85 91 100 98 85 92 100 DATE TUE 10/14/25 WED 10/15/25 THU 10/16/25 FRI 10/17/25 CHST6HRLY 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MIN/MAX 75 85 75 85 75 85 75 87 TEMP 81 76 81 84 80 76 81 84 80 76 81 84 80 76 82 87 DEWPT 78 78 78 78 79 78 79 79 79 79 79 79 79 79 79 79 PWIND DIR E E E E E E E E WIND CHAR GN GN GN GN GN GN GN GN AVG CLOUDS B1 SC B1 B1 B1 B1 B1 B1 B2 B2 B1 B1 B1 B1 B1 B1 POP 12HR 20 20 30 40 40 40 30 30 RAIN SHWRS S S S S C C C C C C C C C C C S TSTMS S S S S S S S S S S S $$ MPZ002-110600- TINIAN-SAN JOSE MP 14.97N 145.63E ELEV. 74 FT 353 AM CHST SAT OCT 11 2025 DATE SAT 10/11/25 SUN 10/12/25 MON 10/13/25 CHST3HRLY 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MAX/MIN 90 78 90 78 89 TEMP 78 79 85 90 89 87 83 80 79 79 85 90 89 87 83 80 79 79 85 89 88 DEWPT 77 77 77 77 77 77 77 77 77 77 77 77 77 78 78 78 78 78 78 78 78 RH 97 94 77 66 68 72 82 91 94 94 77 66 68 75 85 94 97 97 80 70 72 WIND DIR E E E E E E E E NE NE NE E E E E E E E E E E WIND SPD 6 8 9 6 5 5 6 6 8 10 11 10 8 9 9 8 8 10 12 13 12 CLOUDS B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 POP 12HR 20 20 20 20 20 QPF 12HR 0.12 0.02 0.06 0.07 0.06 RAIN SHWRS S S S S S S S S S S S S S S S S S S S S S TSTMS S HEAT INDEX 83 95102101 98 93 88 84 96102101 99 94 88 84 96102101 MAX HEAT 95 102 100 91 96 102 101 92 96 102 DATE TUE 10/14/25 WED 10/15/25 THU 10/16/25 FRI 10/17/25 CHST6HRLY 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MIN/MAX 78 88 78 88 78 88 78 89 TEMP 83 79 84 87 83 79 84 87 83 79 84 87 83 79 85 88 DEWPT 78 78 78 78 79 78 78 78 79 79 79 79 79 79 79 79 PWIND DIR E E E E E E E E WIND CHAR GN GN GN GN GN GN GN GN AVG CLOUDS B1 SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 20 20 30 40 40 40 30 30 RAIN SHWRS S S S S C C C C C C C C C S C C TSTMS S S S S S S S $$ MPZ003-110600- SAIPAN INTERNATIONAL AIRPORT-OBYAN MP 15.11N 145.72E ELEV. 215 FT 353 AM CHST SAT OCT 11 2025 DATE SAT 10/11/25 SUN 10/12/25 MON 10/13/25 CHST3HRLY 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MAX/MIN 90 78 90 78 89 TEMP 78 79 85 90 89 86 83 80 78 79 85 90 89 86 83 80 78 79 84 89 88 DEWPT 77 77 77 77 77 77 77 77 77 77 77 77 77 78 78 78 78 78 78 78 78 RH 97 94 77 66 68 75 82 91 97 94 77 66 68 77 85 94100 97 82 70 72 WIND DIR E E E E E E E E NE NE NE E E E E E E E E E E WIND SPD 6 8 9 8 5 5 6 6 8 10 11 10 9 9 9 8 8 10 12 13 13 CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC B1 B1 B1 B1 POP 12HR 20 20 20 20 20 QPF 12HR 0.11 0.04 0.05 0.06 0.06 RAIN SHWRS S S S S S S S S S S S S S S S S S S S S S HEAT INDEX 95102101 98 93 87 96103102 99 93 88 95103101 MAX HEAT 95 102 100 91 96 103 101 91 95 103 DATE TUE 10/14/25 WED 10/15/25 THU 10/16/25 FRI 10/17/25 CHST6HRLY 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MIN/MAX 78 88 78 88 78 88 78 89 TEMP 83 78 84 87 83 78 84 87 83 78 84 87 83 78 84 88 DEWPT 78 78 78 78 79 78 78 79 79 79 79 79 79 79 79 79 PWIND DIR E E E E E E E E WIND CHAR GN GN GN GN GN GN GN GN AVG CLOUDS B1 SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 20 20 30 40 40 40 30 20 RAIN SHWRS S S S S C C C C C C C C C S S S TSTMS S S S S S S S $$