Point Forecast Matrices
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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424 FOMY50 PGUM 071800 PFMGUM POINT FORECAST MATRICES NATIONAL WEATHER SERVICE TIYAN GU 353 AM CHST MON SEP 8 2025 GUZ001-080600- GUAM INTERNATIONAL AIRPORT-TIYAN GU 13.48N 144.79E ELEV. 248 FT 353 AM CHST MON SEP 8 2025 DATE MON 09/08/25 TUE 09/09/25 WED 09/10/25 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 78 87 78 87 TEMP 78 79 84 88 87 85 82 80 78 79 84 87 87 85 82 80 78 79 83 87 86 DEWPT 77 77 77 77 77 77 78 78 78 78 78 78 78 78 79 79 79 78 79 79 79 RH 97 94 80 70 72 77 88 94100 97 82 75 75 80 91 97103 97 88 77 80 WIND DIR E E E E E E E E E E E E E E E E SE E E E E WIND SPD 4 5 8 6 6 6 6 5 5 11 11 11 10 10 11 9 8 9 11 11 11 CLOUDS B1 SC SC SC SC B1 B1 B1 B1 SC SC SC SC B1 B1 B1 B1 SC SC SC SC POP 12HR 20 20 20 20 20 QPF 12HR 0.11 0.21 0.14 0.12 0.11 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 S S S S HEAT INDEX 93100 99 96 91 86 94100 99 96 92 86 94100100 MAX HEAT 93 100 98 90 94 100 98 91 94 101 DATE THU 09/11/25 FRI 09/12/25 SAT 09/13/25 SUN 09/14/25 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 87 78 87 78 87 78 87 TEMP 82 78 83 86 82 78 83 86 82 78 83 86 82 78 83 86 DEWPT 79 79 79 78 79 78 78 78 78 78 78 78 78 78 78 78 PWIND DIR E E E E E E E E WIND CHAR GN GN GN GN LT LT LT LT AVG CLOUDS SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 B1 B1 POP 12HR 20 20 20 20 20 20 20 20 RAIN SHWRS S S S S S S S S S S S S S S S S TSTMS S S S S S S S $$ MPZ001-080600- ROTA INTERNATIONAL AIRPORT-SINAPALU MP 14.17N 145.23E ELEV. 592 FT 353 AM CHST MON SEP 8 2025 DATE MON 09/08/25 TUE 09/09/25 WED 09/10/25 CHST3HRLY 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MAX/MIN 88 78 87 78 87 TEMP 78 79 84 88 87 85 82 80 78 79 84 87 87 85 82 80 78 79 83 87 86 DEWPT 77 77 77 77 77 77 78 78 78 78 78 78 78 78 79 79 78 78 79 79 79 RH 97 94 80 70 72 77 88 94100 97 82 75 75 80 91 97100 97 88 77 80 WIND DIR E E E E E NE E E E E E E E E E E E E E E E WIND SPD 6 6 8 8 6 8 8 6 8 12 12 12 11 12 12 10 9 10 12 12 11 CLOUDS B1 SC SC SC SC B1 B1 B1 B1 SC SC SC SC B1 B1 B1 B1 SC SC SC SC POP 12HR 20 20 20 30 30 QPF 12HR 0.08 0.12 0.08 0.18 0.11 RAIN SHWRS S S S S S S S S S S S S S C C C C S S S S TSTMS S S S S HEAT INDEX 94100 99 96 91 86 94100 99 96 92 86 94101100 MAX HEAT 94 100 98 90 94 100 99 91 94 101 DATE THU 09/11/25 FRI 09/12/25 SAT 09/13/25 SUN 09/14/25 CHST6HRLY 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MIN/MAX 78 87 78 87 78 87 78 87 TEMP 82 78 83 86 82 78 83 86 82 78 83 86 82 78 83 86 DEWPT 79 79 79 79 79 78 78 78 79 79 79 78 78 78 78 78 PWIND DIR E E E E E E E E WIND CHAR GN GN GN GN LT LT LT LT AVG CLOUDS SC SC SC SC SC SC SC SC SC B1 B1 SC B1 B1 B1 B1 POP 12HR 20 20 20 20 20 20 20 20 RAIN SHWRS S S S S S S S S S S S S S S S S TSTMS S S S S S $$ MPZ002-080600- TINIAN-SAN JOSE MP 14.97N 145.63E ELEV. 74 FT 353 AM CHST MON SEP 8 2025 DATE MON 09/08/25 TUE 09/09/25 WED 09/10/25 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 87 78 87 78 87 TEMP 78 79 84 87 87 85 82 80 78 79 83 87 86 84 82 80 78 79 83 87 86 DEWPT 77 77 77 77 77 77 77 77 78 78 78 78 78 78 79 79 79 79 79 79 79 RH 97 94 80 72 72 77 85 91100 97 85 75 77 82 91 97103100 88 77 80 WIND DIR E E E E E E E E E E E E E E E E E E E E E WIND SPD 5 5 8 6 6 8 8 6 6 12 13 12 11 12 13 11 12 11 12 12 12 CLOUDS B1 SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 20 20 20 30 30 QPF 12HR 0.06 0.05 0.04 0.22 0.17 RAIN SHWRS S S S S S S S S S S S S S C C C C S S S S TSTMS S S S S HEAT INDEX 93 99 98 95 91 86 93 99 98 96 92 86 94100 99 MAX HEAT 93 99 97 89 93 99 97 90 94 100 DATE THU 09/11/25 FRI 09/12/25 SAT 09/13/25 SUN 09/14/25 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 87 78 87 78 87 78 87 TEMP 82 78 83 86 82 78 83 86 82 78 83 86 82 78 83 86 DEWPT 79 79 79 78 79 78 78 78 79 78 78 78 79 78 78 78 PWIND DIR E E E E E E E E WIND CHAR GN GN GN LT LT LT LT LT AVG CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 20 20 20 20 20 20 20 20 RAIN SHWRS S S S S S S S S S S S S S S S S TSTMS S S S S S S S $$ MPZ003-080600- SAIPAN INTERNATIONAL AIRPORT-OBYAN MP 15.11N 145.72E ELEV. 215 FT 353 AM CHST MON SEP 8 2025 DATE MON 09/08/25 TUE 09/09/25 WED 09/10/25 CHST3HRLY 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MAX/MIN 87 78 87 78 87 TEMP 78 79 84 87 87 85 82 80 78 79 83 87 86 84 82 80 78 79 83 87 86 DEWPT 77 77 77 77 77 77 77 78 78 78 78 78 78 78 79 79 78 79 79 79 79 RH 97 94 80 72 72 77 85 94100 97 85 75 77 82 91 97100100 88 77 80 WIND DIR E E E E E E E E E E E E E E E E E E E E E WIND SPD 5 6 8 5 6 9 8 6 6 12 13 12 11 12 13 11 12 12 12 12 12 CLOUDS B1 SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 20 20 20 30 30 QPF 12HR 0.05 0.05 0.04 0.21 0.17 RAIN SHWRS S S S S S S S S S S S S S C C C C S S S S TSTMS S S S S HEAT INDEX 93 99 98 95 91 85 93 99 98 96 92 86 94100100 MAX HEAT 93 99 97 89 93 99 98 90 94 100 DATE THU 09/11/25 FRI 09/12/25 SAT 09/13/25 SUN 09/14/25 CHST6HRLY 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MIN/MAX 78 87 78 87 78 87 78 87 TEMP 82 78 83 86 82 78 83 86 82 78 83 86 82 78 83 86 DEWPT 79 79 79 78 79 78 78 78 79 78 78 78 79 78 78 78 PWIND DIR E E E E E E E E WIND CHAR GN GN GN LT LT LT LT LT AVG CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 20 20 20 20 20 20 20 20 RAIN SHWRS S S S S S S S S S S S S S S S S TSTMS S S S S S $$