Point Forecast Matrices
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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784 FOMY50 PGUM 030540 PFMGUM POINT FORECAST MATRICES NATIONAL WEATHER SERVICE TIYAN GU 331 PM CHST FRI OCT 3 2025 GUZ001-031800- GUAM INTERNATIONAL AIRPORT-TIYAN GU 13.48N 144.79E ELEV. 248 FT 331 PM CHST FRI OCT 3 2025 DATE FRI 10/03/25 SAT 10/04/25 SUN 10/05/25 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 87 76 87 76 TEMP 86 83 80 78 77 77 83 87 86 84 81 78 77 77 83 87 86 84 81 78 77 DEWPT 78 76 77 77 77 77 76 76 77 77 77 77 77 77 76 76 76 76 77 77 77 RH 77 80 91 97100100 80 70 75 80 88 97100100 80 70 72 77 88 97100 WIND DIR S S S SW SW SW SW SW SW SW SW SW W SW SW SW SW SW SW SW W WIND SPD 3 8 9 8 8 6 5 5 5 4 3 3 2 3 4 5 4 3 3 2 2 CLOUDS SC SC SC SC SC SC B1 B1 SC SC SC SC SC SC B1 B1 SC B1 B1 B1 B1 POP 12HR 20 30 20 30 30 QPF 12HR 0.10 0.10 0.10 0.06 0.05 RAIN SHWRS S S S S S S C C S S S S S S C C S C C C C TSTMS S S S S S S S S S S S S S S S S S HEAT INDEX 98 91 85 91 98 97 93 88 91 98 97 93 88 MAX HEAT 100 96 83 91 98 96 87 91 98 96 87 DATE 10/06/25 TUE 10/07/25 WED 10/08/25 THU 10/09/25 FRI 10/10/25 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 76 87 76 88 76 88 80 87 TEMP 83 86 81 77 83 86 81 77 83 87 82 77 83 87 84 80 84 86 DEWPT 77 77 77 77 77 77 78 77 78 78 78 77 78 78 78 78 78 78 PWIND DIR S S S S SE E E E E WIND CHAR LT LT GN GN LT LT GN GN LT AVG CLOUDS B1 B1 B1 B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 SC B1 B1 B1 B1 POP 12HR 30 40 50 50 40 20 20 20 30 RAIN SHWRS C C C C C C C C C S S S S S S S C C TSTMS S S S S S S S S S S S S S S S S S S $$ MPZ001-031800- ROTA INTERNATIONAL AIRPORT-SINAPALU MP 14.17N 145.23E ELEV. 592 FT 331 PM CHST FRI OCT 3 2025 DATE FRI 10/03/25 SAT 10/04/25 SUN 10/05/25 MON CHST3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MIN/MAX 75 86 75 86 75 TEMP 85 81 79 77 75 76 82 86 85 83 80 77 76 76 82 86 85 83 80 77 76 DEWPT 78 76 76 77 75 76 77 77 76 77 77 77 76 76 77 76 76 76 77 77 76 RH 80 85 91100100100 85 75 75 82 91100100100 85 72 75 80 91100100 WIND DIR SE S S SW SW SW SW SW SW S SW SW SW SW SW SW SW SW S S SW WIND SPD 2 8 9 8 8 6 4 4 4 3 2 2 2 3 3 4 4 3 2 2 1 CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 POP 12HR 20 20 20 20 30 QPF 12HR 0.09 0.11 0.11 0.06 0.06 RAIN SHWRS S S S S S S S S S S S S S S S S S C C C C TSTMS S S S S S S S S S S S HEAT INDEX 96 88 89 96 95 91 86 89 96 95 91 86 MAX HEAT 98 94 89 96 94 83 89 96 94 83 DATE 10/06/25 TUE 10/07/25 WED 10/08/25 THU 10/09/25 FRI 10/10/25 CHST6HRLY 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MAX/MIN 86 75 86 75 87 75 87 81 86 TEMP 82 85 80 76 82 85 80 76 82 86 81 76 82 86 84 81 84 85 DEWPT 77 77 77 76 77 77 78 76 78 78 78 76 78 78 78 78 78 78 PWIND DIR SE SE S S SE E E E E WIND CHAR LT LT GN GN LT LT GN GN GN AVG CLOUDS B1 B1 B1 B1 B2 B2 B2 B1 B1 B1 B1 B1 B1 SC B1 B1 B1 B1 POP 12HR 30 40 50 50 40 30 20 20 20 RAIN SHWRS C C C C C C C C C C C S S S S S S S TSTMS S S S S S S S S S S S S S S S S S S $$ MPZ002-031800- TINIAN-SAN JOSE MP 14.97N 145.63E ELEV. 74 FT 331 PM CHST FRI OCT 3 2025 DATE FRI 10/03/25 SAT 10/04/25 SUN 10/05/25 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 86 78 86 78 TEMP 85 83 81 79 78 79 83 86 86 84 82 80 78 79 83 86 86 84 82 80 78 DEWPT 78 76 76 76 76 77 77 77 76 76 77 77 77 77 77 76 76 77 77 77 77 RH 80 80 85 91 94 94 82 75 72 77 85 91 97 94 82 72 72 80 85 91 97 WIND DIR S SE S S SW SW SW SW S S S SW SW S S SW S S S S SE WIND SPD 4 8 9 8 8 5 4 3 3 2 2 2 2 3 3 4 3 3 3 3 3 CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 POP 12HR 20 20 20 20 30 QPF 12HR 0.08 0.11 0.08 0.07 0.08 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 S S S S S S S S S S HEAT INDEX 97 90 87 84 92 97 96 93 89 85 92 96 96 93 90 85 MAX HEAT 98 95 86 92 97 95 88 92 96 95 88 DATE 10/06/25 TUE 10/07/25 WED 10/08/25 THU 10/09/25 FRI 10/10/25 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 88 78 88 78 88 78 88 79 88 TEMP 84 87 83 79 84 87 83 79 84 87 83 79 84 87 83 80 84 87 DEWPT 77 77 78 77 78 78 78 78 78 78 78 78 78 78 79 78 78 78 PWIND DIR SE SE SE S SE E E E E WIND CHAR LT GN GN GN LT LT GN GN GN AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC SC B1 B1 B1 B1 POP 12HR 30 30 40 40 40 30 20 20 20 RAIN SHWRS C C C C C C C C C C C S S S S S S S TSTMS S S S S S S S S S S S S S S S $$ MPZ003-031800- SAIPAN INTERNATIONAL AIRPORT-OBYAN MP 15.11N 145.72E ELEV. 215 FT 331 PM CHST FRI OCT 3 2025 DATE FRI 10/03/25 SAT 10/04/25 SUN 10/05/25 MON CHST3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MIN/MAX 78 88 78 88 78 TEMP 87 84 81 79 78 79 84 88 87 85 82 80 78 79 84 88 87 85 82 80 78 DEWPT 78 76 76 76 76 77 77 77 76 76 77 77 77 77 77 76 76 77 77 77 77 RH 75 77 85 91 94 94 80 70 70 75 85 91 97 94 80 68 70 77 85 91 97 WIND DIR S S S S SW SW SW S S S S SW SW S S S S S S S SE WIND SPD 2 8 8 8 6 5 3 3 3 3 3 2 2 3 3 4 3 3 3 4 3 CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 POP 12HR 20 20 20 20 30 QPF 12HR 0.09 0.11 0.08 0.08 0.08 RAIN SHWRS S S S S S S S S S S S S S S S S S C C C C TSTMS S S S S S S S S S S S HEAT INDEX 100 92 88 83 93 99 98 95 90 85 93 99 98 95 91 85 MAX HEAT 101 98 86 93 99 97 89 93 99 97 89 DATE 10/06/25 TUE 10/07/25 WED 10/08/25 THU 10/09/25 FRI 10/10/25 CHST6HRLY 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MAX/MIN 88 78 88 78 88 78 88 79 88 TEMP 84 87 82 78 84 87 82 78 84 87 82 78 84 87 83 80 84 87 DEWPT 77 77 78 78 78 78 78 78 78 78 78 78 78 78 79 78 78 78 PWIND DIR SE SE SE S SE E E E E WIND CHAR LT GN GN GN LT LT GN GN GN AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC SC B1 B1 B1 B1 POP 12HR 30 30 40 40 40 30 20 20 20 RAIN SHWRS C C C C C C C C C C C S S S S S S S TSTMS S S S S S S S S S S S S S S S $$