Point Forecast Matrices
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
066 FOMY50 PGUM 171800 PFMGUM POINT FORECAST MATRICES NATIONAL WEATHER SERVICE TIYAN GU 359 AM CHST TUE NOV 18 2025 GUZ001-180600- GUAM INTERNATIONAL AIRPORT-TIYAN GU 13.48N 144.79E ELEV. 248 FT 359 AM CHST TUE NOV 18 2025 DATE TUE 11/18/25 WED 11/19/25 THU 11/20/25 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 78 79 84 88 87 85 83 80 79 79 84 88 87 85 83 80 79 79 84 88 87 DEWPT 78 78 78 78 78 78 78 78 77 77 77 77 78 78 78 78 78 78 77 77 78 RH 100 97 82 72 75 80 85 94 94 94 80 70 75 80 85 94 97 97 80 70 75 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 8 10 13 13 12 13 12 9 9 10 14 14 13 18 16 13 12 14 17 17 16 CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 20 20 10 10 10 QPF 12HR 0.09 0.06 0.06 0.05 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 HEAT INDEX 83 94101100 97 92 87 83 93100100 97 93 87 94100 99 MAX HEAT 94 101 99 91 93 100 99 91 94 100 DATE FRI 11/21/25 SAT 11/22/25 SUN 11/23/25 MON 11/24/25 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 79 88 77 89 TEMP 83 79 83 86 82 79 83 86 83 79 84 87 82 78 84 88 DEWPT 79 78 78 78 79 78 78 78 78 78 77 77 78 77 78 78 PWIND DIR E E E E E E E E WIND CHAR GN GN BZ BZ BZ BZ GN BZ AVG CLOUDS SC SC SC SC SC SC SC B1 B1 B1 SC SC 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 $$ MPZ001-180600- ROTA INTERNATIONAL AIRPORT-SINAPALU MP 14.17N 145.23E ELEV. 592 FT 359 AM CHST TUE NOV 18 2025 DATE TUE 11/18/25 WED 11/19/25 THU 11/20/25 CHST3HRLY 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MAX/MIN 86 76 86 76 86 TEMP 76 77 82 86 85 83 81 78 77 77 82 86 85 83 81 78 77 77 82 86 85 DEWPT 77 78 77 78 78 78 78 77 77 77 77 78 78 78 78 78 78 78 78 78 78 RH 103103 85 77 80 85 91 97100100 85 77 80 85 91100103103 88 77 80 WIND DIR E E E E E E E E E E E E E E E E E E E E E WIND SPD 11 12 16 14 13 16 13 10 11 13 14 16 14 17 14 13 12 14 17 17 17 CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 20 20 10 10 10 QPF 12HR 0.06 0.05 0.03 0.04 0.05 RAIN SHWRS S S S S S S S S S S S S S S S S S S S S S HEAT INDEX 90 97 97 93 89 90 98 97 93 89 91 97 97 MAX HEAT 90 98 96 85 90 98 96 85 91 97 DATE FRI 11/21/25 SAT 11/22/25 SUN 11/23/25 MON 11/24/25 CHST6HRLY 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MIN/MAX 76 85 76 85 79 86 77 87 TEMP 81 77 81 84 80 77 81 84 82 79 83 85 81 78 83 87 DEWPT 79 78 79 79 79 78 78 78 78 78 77 77 78 78 78 78 PWIND DIR E E E E E E E E WIND CHAR GN BZ BZ BZ BZ BZ BZ BZ AVG CLOUDS SC SC SC B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC POP 12HR 20 30 30 30 30 20 20 20 RAIN SHWRS S S C C C C C C C S S S S S S S $$ MPZ002-180600- TINIAN-SAN JOSE MP 14.97N 145.63E ELEV. 74 FT 359 AM CHST TUE NOV 18 2025 DATE TUE 11/18/25 WED 11/19/25 THU 11/20/25 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 88 TEMP 78 79 83 87 86 85 82 80 79 79 84 87 87 85 82 80 79 79 84 88 87 DEWPT 78 77 77 78 78 78 78 77 77 77 77 77 77 78 78 78 78 78 78 78 78 RH 100 94 82 75 77 80 88 91 94 94 80 72 72 80 88 94 97 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 E WIND SPD 10 12 14 14 14 14 12 11 10 12 14 14 13 17 14 12 12 14 17 17 17 CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 20 20 10 10 10 QPF 12HR 0.04 0.06 0.03 0.04 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 93 99 99 95 91 85 93 99 98 96 92 86 94100100 MAX HEAT 93 99 98 89 93 99 98 90 94 100 DATE FRI 11/21/25 SAT 11/22/25 SUN 11/23/25 MON 11/24/25 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 88 76 89 TEMP 83 79 83 86 82 79 83 86 82 78 84 87 82 77 84 88 DEWPT 79 78 79 78 78 78 78 78 77 77 77 77 78 78 78 78 PWIND DIR E E E E E E E E WIND CHAR BZ BZ BZ BZ BZ BZ BZ BZ AVG CLOUDS SC B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC POP 12HR 30 30 30 30 20 20 20 20 RAIN SHWRS C C C C C C C S S S S S S S S S TSTMS S S S $$ MPZ003-180600- SAIPAN INTERNATIONAL AIRPORT-OBYAN MP 15.11N 145.72E ELEV. 215 FT 359 AM CHST TUE NOV 18 2025 DATE TUE 11/18/25 WED 11/19/25 THU 11/20/25 CHST3HRLY 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MAX/MIN 88 78 88 78 88 TEMP 78 79 84 88 87 85 83 80 79 79 84 88 87 85 83 80 79 79 84 88 87 DEWPT 78 77 77 78 78 78 78 77 77 77 77 77 78 78 78 78 78 78 78 78 78 RH 100 94 80 72 75 80 85 91 94 94 80 70 75 80 85 94 97 97 82 72 75 WIND DIR E E E E E E E E E E E E E E E E E E E E E WIND SPD 10 13 14 13 14 14 12 11 10 12 14 14 13 17 14 12 12 14 17 17 17 CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 20 20 10 10 10 QPF 12HR 0.04 0.06 0.03 0.04 0.07 RAIN SHWRS S S S S S S S S S S S S S S S S S S S S S HEAT INDEX 94101100 97 92 87 83 94100100 97 92 88 83 94101100 MAX HEAT 94 101 99 90 94 100 99 91 94 101 DATE FRI 11/21/25 SAT 11/22/25 SUN 11/23/25 MON 11/24/25 CHST6HRLY 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MIN/MAX 78 87 78 87 78 88 76 89 TEMP 83 79 83 86 82 79 83 86 82 78 84 87 82 77 84 88 DEWPT 79 79 79 79 78 78 78 78 77 77 77 77 78 78 78 78 PWIND DIR E E E E E E E E WIND CHAR BZ BZ BZ BZ BZ BZ BZ BZ AVG CLOUDS B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC POP 12HR 30 30 30 30 20 20 20 20 RAIN SHWRS C C C C C C C S S S S S S S S S TSTMS S S S $$