Point Forecast Matrices
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
496 FOMY50 PGUM 151810 PFMGUM POINT FORECAST MATRICES NATIONAL WEATHER SERVICE TIYAN GU 401 AM CHST SAT AUG 16 2025 GUZ001-160600- GUAM INTERNATIONAL AIRPORT-TIYAN GU 13.48N 144.79E ELEV. 248 FT 401 AM CHST SAT AUG 16 2025 DATE SAT 08/16/25 SUN 08/17/25 MON 08/18/25 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 84 88 87 85 83 80 79 79 84 88 87 85 83 80 79 79 84 88 87 DEWPT 76 75 75 76 76 76 76 77 78 78 78 79 79 79 79 79 79 79 78 78 RH 94 74 66 70 75 80 88 94 97 82 72 77 82 88 97100100 85 72 75 WIND DIR E E E E E E E E NE NE E E E E E E E E E E WIND SPD 5 6 8 6 6 5 5 6 10 12 12 12 13 13 14 13 12 13 13 13 CLOUDS SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 30 30 30 30 20 QPF 12HR 0.04 0.11 0.11 0.05 0.06 RAIN SHWRS S S C C C C C C C C C C S S S S S S S S TSTMS S S S S S S S S S S S S S S HEAT INDEX 92 98 97 95 90 86 95102101 98 94 89 95102101 MAX HEAT 92 98 97 89 95 102 100 92 95 102 DATE TUE 08/19/25 WED 08/20/25 THU 08/21/25 FRI 08/22/25 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 88 78 88 78 88 TEMP 83 79 84 87 83 79 84 87 83 79 84 87 83 79 84 87 DEWPT 79 78 78 78 78 78 78 77 78 78 77 77 78 78 78 77 PWIND DIR E SE SE E NE E E E WIND CHAR GN GN LT LT LT GN GN GN AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC B1 POP 12HR 30 40 40 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 S S S S S S S S S S S $$ MPZ001-160600- ROTA INTERNATIONAL AIRPORT-SINAPALU MP 14.17N 145.23E ELEV. 592 FT 401 AM CHST SAT AUG 16 2025 DATE SAT 08/16/25 SUN 08/17/25 MON 08/18/25 CHST3HRLY 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MAX/MIN 87 78 87 78 87 TEMP 79 83 87 86 84 82 80 79 79 83 87 86 84 82 80 79 79 83 87 86 DEWPT 76 75 75 76 76 76 76 77 78 78 79 79 79 79 79 79 79 79 79 79 RH 91 77 68 72 77 82 88 94 97 85 77 80 85 91 97100100 88 77 80 WIND DIR E E E E E E E NE NE NE E E E E E E E E E E WIND SPD 5 8 6 6 8 8 8 8 10 12 12 13 13 14 14 13 11 13 13 13 CLOUDS SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 20 20 30 30 30 QPF 12HR 0.11 0.12 0.11 0.06 0.07 RAIN SHWRS S S S S S S S S C C C C C C C C C C C C TSTMS S S S S S S S S S S S S S S HEAT INDEX 91 96 96 93 90 85 94100100 97 93 86 94100 99 MAX HEAT 91 96 95 88 94 100 99 91 94 100 DATE TUE 08/19/25 WED 08/20/25 THU 08/21/25 FRI 08/22/25 CHST6HRLY 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MIN/MAX 78 87 78 87 78 87 78 86 TEMP 82 79 83 86 82 79 83 86 82 79 83 86 82 79 83 86 DEWPT 79 78 78 78 78 78 78 77 78 78 77 77 78 78 78 78 PWIND DIR E SE SE E NE E E E WIND CHAR GN GN LT LT LT GN GN GN AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC POP 12HR 30 40 40 20 20 20 20 20 RAIN SHWRS C S C C C S S S S S S S S S S S TSTMS S S S S S S S S S S S S S S $$ MPZ002-160600- TINIAN-SAN JOSE MP 14.97N 145.63E ELEV. 74 FT 401 AM CHST SAT AUG 16 2025 DATE SAT 08/16/25 SUN 08/17/25 MON 08/18/25 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 77 83 87 87 85 82 80 79 79 84 87 87 85 82 80 79 79 84 87 87 DEWPT 77 76 76 76 77 77 77 77 79 78 79 79 79 80 80 79 79 79 79 78 RH 100 80 70 70 77 85 91 94100 82 77 77 82 94100100100 85 77 75 WIND DIR E E E E E E E NE NE E E E E E E E E E E E WIND SPD 6 8 8 8 8 8 8 9 10 11 11 12 13 14 16 14 11 12 12 12 CLOUDS SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 20 20 30 30 30 QPF 12HR 0.05 0.09 0.07 0.09 0.10 RAIN SHWRS S S S S S S S S C C C C C C C C C C C C TSTMS S S S S S S S S S S S S S S S S S S HEAT INDEX 91 98 97 95 91 87 95101101 98 94 89 95101100 MAX HEAT 91 98 97 89 95 101 100 92 95 101 DATE TUE 08/19/25 WED 08/20/25 THU 08/21/25 FRI 08/22/25 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 88 78 88 78 88 TEMP 82 79 84 87 82 79 84 87 82 79 84 87 82 79 84 87 DEWPT 79 79 78 78 78 78 78 77 78 78 78 77 78 78 78 77 PWIND DIR E E SE E E E E E WIND CHAR GN GN LT LT LT LT GN GN AVG CLOUDS B1 SC B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC POP 12HR 30 30 30 20 20 20 20 20 RAIN SHWRS C S C C C S S S S S S S S S S S TSTMS S S S S S S S S S S S S S S S $$ MPZ003-160600- SAIPAN INTERNATIONAL AIRPORT-OBYAN MP 15.11N 145.72E ELEV. 215 FT 401 AM CHST SAT AUG 16 2025 DATE SAT 08/16/25 SUN 08/17/25 MON 08/18/25 CHST3HRLY 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MAX/MIN 88 78 88 78 88 TEMP 77 83 88 87 85 83 80 79 79 84 88 87 85 83 80 79 79 84 88 87 DEWPT 77 76 76 76 77 78 77 77 79 79 79 79 79 80 80 79 79 79 79 79 RH 100 80 68 70 77 85 91 94100 85 75 77 82 91100100100 85 75 77 WIND DIR E E E E E E E E E E E E E E E E E E E E WIND SPD 6 8 8 8 8 8 8 9 10 11 11 12 13 14 16 13 11 12 12 12 CLOUDS SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 20 20 30 30 30 QPF 12HR 0.06 0.08 0.08 0.10 0.11 RAIN SHWRS S S S S S S S S C C C C C C C C C C C C TSTMS S S S S S S S S S S S S S S S S S S HEAT INDEX 91 99 98 96 91 87 95102102 98 94 89 96102101 MAX HEAT 91 99 97 90 95 102 101 92 96 102 DATE TUE 08/19/25 WED 08/20/25 THU 08/21/25 FRI 08/22/25 CHST6HRLY 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MIN/MAX 78 88 78 88 78 88 78 88 TEMP 83 79 84 87 83 79 84 87 83 79 84 87 83 79 84 88 DEWPT 79 79 78 78 78 78 78 77 78 78 78 78 78 78 78 77 PWIND DIR E E E E E E E E WIND CHAR GN GN LT LT LT LT GN GN AVG CLOUDS B1 SC B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC SC POP 12HR 30 30 30 20 20 20 20 20 RAIN SHWRS C S C C C S S S S S S S S S S S TSTMS S S S S S S S S S S S S S S S $$