Point Forecast Matrices
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
235 FOMY50 PGUM 100550 PFMGUM POINT FORECAST MATRICES NATIONAL WEATHER SERVICE TIYAN GU 340 PM CHST FRI OCT 10 2025 GUZ001-101800- GUAM INTERNATIONAL AIRPORT-TIYAN GU 13.48N 144.79E ELEV. 248 FT 340 PM CHST FRI OCT 10 2025 DATE FRI 10/10/25 SAT 10/11/25 SUN 10/12/25 MON CHST3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MIN/MAX 76 89 76 89 76 TEMP 85 82 79 78 77 77 84 89 88 85 82 79 77 77 84 89 88 85 82 79 77 DEWPT 78 77 77 77 77 77 77 77 77 77 77 77 77 77 77 77 77 78 78 78 78 RH 80 85 94 97100100 80 68 70 77 85 94100100 80 68 70 80 88 97103 WIND DIR E E E E E E E E E E E NE NE NE E NE NE E E E E WIND SPD 4 4 5 5 5 5 5 4 4 4 5 5 5 6 9 8 8 9 9 6 5 CLOUDS B1 SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 SC SC SC SC POP 12HR 30 20 20 20 20 QPF 12HR 0.07 0.05 0.02 0.10 0.10 RAIN SHWRS C S S S S S S S S S S S S S S S S S S S S TSTMS S S S S S S S S S HEAT INDEX 96 90 84 93101100 96 90 94102101 97 91 MAX HEAT 98 94 93 101 99 88 94 102 100 89 DATE 10/13/25 TUE 10/14/25 WED 10/15/25 THU 10/16/25 FRI 10/17/25 CHST6HRLY 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MAX/MIN 89 76 87 76 87 76 87 76 89 TEMP 84 88 82 77 83 86 81 77 83 86 81 77 83 86 81 77 84 88 DEWPT 78 78 78 78 78 78 79 78 78 78 79 79 79 79 79 79 79 79 PWIND DIR E E E E E E SE E E WIND CHAR GN GN GN GN GN GN GN LT GN AVG CLOUDS B1 B1 B1 SC B1 B1 B1 B1 B1 B1 B2 B2 B1 B1 B1 B1 B1 B1 POP 12HR 30 30 20 30 40 40 40 30 30 RAIN SHWRS C C 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 $$ MPZ001-101800- ROTA INTERNATIONAL AIRPORT-SINAPALU MP 14.17N 145.23E ELEV. 592 FT 340 PM CHST FRI OCT 10 2025 DATE FRI 10/10/25 SAT 10/11/25 SUN 10/12/25 MON CHST3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MIN/MAX 75 88 75 88 75 TEMP 83 81 78 76 75 76 83 87 87 84 81 78 76 76 83 87 87 84 81 78 76 DEWPT 78 77 77 77 77 77 77 77 77 77 77 77 77 77 77 77 77 78 78 78 78 RH 85 88 97103107103 82 72 72 80 88 97103103 82 72 72 82 91100107 WIND DIR E E E E E E E E E E E E NE E E E NE E E E E WIND SPD 2 4 6 6 6 6 6 5 4 5 6 6 6 9 10 9 6 8 9 8 6 CLOUDS B1 SC SC SC SC SC SC SC SC B1 B1 B1 B1 SC SC SC SC SC SC SC SC POP 12HR 20 20 20 20 20 QPF 12HR 0.15 0.09 0.02 0.09 0.09 RAIN SHWRS S S S S S S S S S S S S S S S S S S S S S TSTMS S S S S S HEAT INDEX 94 87 91 99 98 94 88 91100 99 95 89 MAX HEAT 95 92 91 99 97 85 91 100 98 85 DATE 10/13/25 TUE 10/14/25 WED 10/15/25 THU 10/16/25 FRI 10/17/25 CHST6HRLY 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MAX/MIN 87 75 85 75 85 75 85 75 87 TEMP 82 86 81 76 81 84 80 76 81 84 80 76 81 84 80 76 82 87 DEWPT 78 78 78 78 78 78 79 78 79 79 79 79 79 79 79 79 79 79 PWIND DIR E E E E E E E E E WIND CHAR GN GN GN GN GN GN GN GN GN AVG CLOUDS B1 B1 B1 SC B1 B1 B1 B1 B1 B1 B2 B2 B1 B1 B1 B1 B1 B1 POP 12HR 20 20 20 30 40 40 40 30 30 RAIN SHWRS S S S S S S C C C C C C C C C C C S TSTMS S S S S S S S S S S S $$ MPZ002-101800- TINIAN-SAN JOSE MP 14.97N 145.63E ELEV. 74 FT 340 PM CHST FRI OCT 10 2025 DATE FRI 10/10/25 SAT 10/11/25 SUN 10/12/25 MON CHST3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MIN/MAX 78 90 78 90 78 TEMP 86 83 81 79 78 79 85 90 89 87 83 80 79 79 85 90 89 87 83 80 79 DEWPT 77 76 77 77 77 77 77 77 77 77 77 77 77 77 77 77 77 78 78 78 78 RH 75 80 88 94 97 94 77 66 68 72 82 91 94 94 77 66 68 75 85 94 97 WIND DIR E E E E E E E E E E E E NE NE NE E E E E E E WIND SPD 4 5 8 6 6 8 9 6 5 5 6 6 8 10 11 10 8 9 9 8 8 CLOUDS B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 30 20 20 20 20 QPF 12HR 0.25 0.12 0.03 0.06 0.07 RAIN SHWRS C S S S S S S S S S S S S S S S S S S S S TSTMS S S S S S HEAT INDEX 97 92 88 84 83 95102101 98 93 88 84 96102101 99 94 88 MAX HEAT 99 96 87 95 102 100 91 96 102 101 92 DATE 10/13/25 TUE 10/14/25 WED 10/15/25 THU 10/16/25 FRI 10/17/25 CHST6HRLY 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MAX/MIN 89 78 88 78 88 78 88 78 89 TEMP 85 88 83 79 84 87 83 79 84 87 83 79 84 87 83 79 85 88 DEWPT 78 78 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 E WIND CHAR GN GN GN GN GN GN GN GN GN AVG CLOUDS B1 B1 B1 SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 20 20 20 30 40 40 40 30 30 RAIN SHWRS S S S S S S C C C C C C C C C S C C TSTMS S S S S S S S $$ MPZ003-101800- SAIPAN INTERNATIONAL AIRPORT-OBYAN MP 15.11N 145.72E ELEV. 215 FT 340 PM CHST FRI OCT 10 2025 DATE FRI 10/10/25 SAT 10/11/25 SUN 10/12/25 MON CHST3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MIN/MAX 78 90 78 90 78 TEMP 86 83 81 79 78 79 85 90 89 86 83 80 78 79 85 90 89 86 83 80 78 DEWPT 78 76 77 77 77 77 77 77 77 77 77 77 77 77 77 77 77 78 78 78 78 RH 77 80 88 94 97 94 77 66 68 75 82 91 97 94 77 66 68 77 85 94100 WIND DIR E E E E E E E E E E E E NE NE NE E E E E E E WIND SPD 4 5 8 6 6 8 9 8 5 5 6 6 8 10 11 10 9 9 9 8 8 CLOUDS B1 B1 B1 B1 B1 SC SC SC SC B1 B1 B1 B1 SC SC SC SC SC SC SC SC POP 12HR 30 20 20 20 20 QPF 12HR 0.08 0.03 0.02 0.05 0.06 RAIN SHWRS C S S S S S S S S S S S S S S S S S S S S TSTMS S HEAT INDEX 97 91 88 95102101 98 93 87 96103102 99 93 88 MAX HEAT 99 96 87 95 102 100 91 96 103 101 91 DATE 10/13/25 TUE 10/14/25 WED 10/15/25 THU 10/16/25 FRI 10/17/25 CHST6HRLY 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MAX/MIN 89 78 88 78 88 78 88 78 89 TEMP 84 88 83 78 84 87 83 78 84 87 83 78 84 87 83 78 84 88 DEWPT 78 78 78 78 78 78 79 78 78 79 79 79 79 79 79 79 79 79 PWIND DIR E E E E E E E E E WIND CHAR GN GN GN GN GN GN GN GN GN AVG CLOUDS B1 B1 B1 SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 20 20 20 30 40 40 40 30 20 RAIN SHWRS S S S S S S C C C C C C C C C S S S TSTMS S S S S S S S $$