Point Forecast Matrices
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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633 FOMY50 PGUM 161810 PFMGUM POINT FORECAST MATRICES NATIONAL WEATHER SERVICE TIYAN GU 405 AM CHST MON NOV 17 2025 GUZ001-170600- GUAM INTERNATIONAL AIRPORT-TIYAN GU 13.48N 144.79E ELEV. 248 FT 405 AM CHST MON NOV 17 2025 DATE MON 11/17/25 TUE 11/18/25 WED 11/19/25 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 88 78 88 TEMP 79 84 88 87 85 83 80 79 79 84 88 87 85 83 80 79 79 84 88 87 DEWPT 78 78 77 77 78 78 78 78 78 78 78 78 78 79 78 77 78 78 78 78 RH 97 82 70 72 80 85 94 97 97 82 72 75 80 88 94 94 97 82 72 75 WIND DIR E E E E E E E E E E E E E E E E E E E E WIND SPD 11 14 13 13 12 10 10 8 11 14 13 13 11 10 9 6 11 16 14 14 CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 20 20 20 20 20 QPF 12HR 0.02 0.06 0.09 0.06 0.04 RAIN SHWRS S S S S S S S S S S S S S S S S S S S S HEAT INDEX 94100 99 97 92 87 95101100 97 93 87 94100100 MAX HEAT 94 100 99 91 95 101 99 91 94 101 DATE THU 11/20/25 FRI 11/21/25 SAT 11/22/25 SUN 11/23/25 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 87 78 87 79 88 TEMP 83 79 84 87 83 79 83 86 82 79 83 86 83 79 84 87 DEWPT 79 78 77 78 79 79 79 78 79 79 78 78 78 78 77 77 PWIND DIR E E E E E E E E WIND CHAR GN GN GN GN GN BZ GN GN AVG CLOUDS SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC POP 12HR 20 20 30 30 30 30 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 S S $$ MPZ001-170600- ROTA INTERNATIONAL AIRPORT-SINAPALU MP 14.17N 145.23E ELEV. 592 FT 405 AM CHST MON NOV 17 2025 DATE MON 11/17/25 TUE 11/18/25 WED 11/19/25 CHST3HRLY 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MAX/MIN 86 76 86 76 86 TEMP 77 82 86 85 83 81 78 77 77 82 86 85 83 81 78 77 77 82 86 85 DEWPT 77 78 78 78 78 78 78 77 77 78 78 78 78 79 78 77 77 78 78 78 RH 100 88 77 80 85 91100100100 88 77 80 85 94100100100 88 77 80 WIND DIR E E E E E E E E E E E E E E E E E E E E WIND SPD 13 16 14 14 14 14 12 11 14 16 14 14 14 13 11 10 13 16 16 16 CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 20 20 20 20 20 QPF 12HR 0.06 0.07 0.03 0.05 0.04 RAIN SHWRS S S S S S S S S S S S S S S S S S S S S HEAT INDEX 91 98 97 93 89 91 98 97 94 89 91 98 97 MAX HEAT 91 98 96 86 91 98 96 86 91 98 DATE THU 11/20/25 FRI 11/21/25 SAT 11/22/25 SUN 11/23/25 CHST6HRLY 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MIN/MAX 76 86 76 85 76 85 79 86 TEMP 81 77 82 85 81 77 81 84 80 77 81 84 82 79 83 85 DEWPT 79 77 77 78 79 77 78 78 79 77 78 78 78 77 77 77 PWIND DIR E E E E E E E E WIND CHAR GN BZ BZ BZ GN BZ GN GN AVG CLOUDS SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC POP 12HR 20 20 30 30 30 30 20 20 RAIN SHWRS S S S S C C C C C C C S S S S S TSTMS S S S S S S S S S $$ MPZ002-170600- TINIAN-SAN JOSE MP 14.97N 145.63E ELEV. 74 FT 405 AM CHST MON NOV 17 2025 DATE MON 11/17/25 TUE 11/18/25 WED 11/19/25 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 79 84 88 87 85 83 80 79 79 83 87 86 85 82 80 79 79 84 87 87 DEWPT 78 78 78 78 78 79 78 78 78 78 78 78 78 79 78 77 77 78 78 78 RH 97 82 72 75 80 88 94 97 97 85 75 77 80 91 94 94 94 82 75 75 WIND DIR E E E E E E E E E E E E E E E E E E E E WIND SPD 14 14 16 16 16 13 12 10 14 14 14 13 14 12 11 9 13 16 14 14 CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 20 20 20 20 20 QPF 12HR 0.08 0.03 0.03 0.05 0.05 RAIN SHWRS S S S S S S S S S S S S S S S S S S S S HEAT INDEX 94100100 97 93 88 94100 99 96 92 86 94 99 99 MAX HEAT 94 100 99 91 94 100 98 90 94 100 DATE THU 11/20/25 FRI 11/21/25 SAT 11/22/25 SUN 11/23/25 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 87 78 87 78 88 TEMP 82 79 84 87 83 79 83 86 82 79 83 86 82 78 84 87 DEWPT 78 78 77 78 79 78 78 78 79 78 78 77 77 77 77 78 PWIND DIR E E E E E E E E WIND CHAR GN BZ BZ BZ BZ BZ GN GN AVG CLOUDS SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC POP 12HR 20 20 20 30 30 30 20 20 RAIN SHWRS S S S S S S C C C C C S S S S S TSTMS S S S S S S S S S $$ MPZ003-170600- SAIPAN INTERNATIONAL AIRPORT-OBYAN MP 15.11N 145.72E ELEV. 215 FT 405 AM CHST MON NOV 17 2025 DATE MON 11/17/25 TUE 11/18/25 WED 11/19/25 CHST3HRLY 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MAX/MIN 88 78 88 78 88 TEMP 79 84 88 87 85 82 80 78 79 84 88 87 85 83 80 79 79 84 88 87 DEWPT 78 78 78 78 78 79 78 78 78 78 78 78 78 78 78 77 77 78 78 78 RH 97 82 72 75 80 91 94100 97 82 72 75 80 85 94 94 94 82 72 75 WIND DIR E E E E E E E E E E E E E E E E E E E E WIND SPD 14 16 16 14 16 14 12 10 13 14 14 13 13 12 11 9 13 16 14 14 CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 20 20 20 20 20 QPF 12HR 0.12 0.05 0.04 0.05 0.04 RAIN SHWRS S S S S S S S S S S S S S S S S S S S S HEAT INDEX 94101100 97 92 86 94101100 97 92 87 94101100 MAX HEAT 94 101 99 91 94 101 99 91 94 101 DATE THU 11/20/25 FRI 11/21/25 SAT 11/22/25 SUN 11/23/25 CHST6HRLY 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MIN/MAX 78 88 78 87 78 87 78 88 TEMP 83 79 84 87 83 79 83 86 82 79 83 86 82 78 84 87 DEWPT 79 78 78 78 79 78 78 78 79 78 78 77 77 77 77 78 PWIND DIR E E E E E E E E WIND CHAR GN BZ BZ BZ BZ BZ GN GN AVG CLOUDS SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC POP 12HR 20 20 20 30 30 30 20 20 RAIN SHWRS S S S S S S C C C C C S S S S S TSTMS S S S S S S S S S $$