Point Forecast Matrices
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
718 FOMY50 PGUM 221740 PFMGUM POINT FORECAST MATRICES NATIONAL WEATHER SERVICE TIYAN GU 337 AM CHST SAT AUG 23 2025 GUZ001-230600- GUAM INTERNATIONAL AIRPORT-TIYAN GU 13.48N 144.79E ELEV. 248 FT 337 AM CHST SAT AUG 23 2025 DATE SAT 08/23/25 SUN 08/24/25 MON 08/25/25 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 77 86 77 89 TEMP 77 78 83 87 87 85 82 79 78 78 82 86 85 84 81 79 78 78 84 89 88 DEWPT 77 77 77 77 77 77 77 78 78 78 78 78 78 78 78 79 78 78 78 78 78 RH 100 97 82 72 72 77 85 97100100 88 77 80 82 91100100100 82 70 72 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 3 4 8 6 6 5 3 3 3 4 5 9 8 8 6 4 4 6 10 10 8 CLOUDS B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 50 30 30 30 30 QPF 12HR 0.16 0.16 0.09 0.10 0.19 RAIN SHWRS C C C C C 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 S S S HEAT INDEX 93 99 98 95 90 84 92 98 97 94 90 95103102 MAX HEAT 93 99 97 89 92 98 96 89 95 103 DATE TUE 08/26/25 WED 08/27/25 THU 08/28/25 FRI 08/29/25 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 77 88 77 88 77 88 77 88 TEMP 82 78 83 87 82 78 83 87 82 78 83 87 82 78 83 87 DEWPT 79 79 78 78 79 79 79 79 79 79 79 79 79 79 78 79 PWIND DIR E E E SE SE SE E E WIND CHAR GN GN GN GN LT LT LT LT AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 30 30 30 30 30 30 30 30 RAIN SHWRS C S C C 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 $$ MPZ001-230600- ROTA INTERNATIONAL AIRPORT-SINAPALU MP 14.17N 145.23E ELEV. 592 FT 337 AM CHST SAT AUG 23 2025 DATE SAT 08/23/25 SUN 08/24/25 MON 08/25/25 CHST3HRLY 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MAX/MIN 86 76 85 76 87 TEMP 76 77 82 85 85 83 80 78 76 77 81 85 85 83 80 78 76 77 82 87 86 DEWPT 77 77 77 77 77 77 78 78 78 78 78 78 78 78 78 78 78 78 78 79 79 RH 103100 85 77 77 82 94100107103 91 80 80 85 94100107103 88 77 80 WIND DIR E E E E E E E SE E E E E E E E E E E E E E WIND SPD 5 6 10 9 8 9 5 5 5 5 8 8 9 11 9 6 6 10 12 10 9 CLOUDS B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 50 40 30 40 40 QPF 12HR 0.15 0.16 0.15 0.12 0.18 RAIN SHWRS C C C C C C C C C C C C C C C C C C C C C TSTMS S S S S S S S S S S S S S S S S S S S S S HEAT INDEX 89 96 95 92 87 90 96 96 92 86 92100 99 MAX HEAT 89 96 94 84 90 96 95 84 92 100 DATE TUE 08/26/25 WED 08/27/25 THU 08/28/25 FRI 08/29/25 CHST6HRLY 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MIN/MAX 76 86 76 85 76 85 76 85 TEMP 81 76 82 85 80 76 81 85 80 76 81 85 80 76 81 85 DEWPT 79 79 79 79 79 79 79 79 79 79 79 79 79 79 79 79 PWIND DIR E E E SE SE SE E E WIND CHAR GN GN GN GN LT GN LT GN AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 30 30 30 30 30 30 30 30 RAIN SHWRS C C C C C C C C C C C C C C C C TSTMS S S S S S S S S S S S S S S S S $$ MPZ002-230600- TINIAN-SAN JOSE MP 14.97N 145.63E ELEV. 74 FT 337 AM CHST SAT AUG 23 2025 DATE SAT 08/23/25 SUN 08/24/25 MON 08/25/25 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 77 87 77 89 TEMP 77 78 83 88 87 85 82 79 78 78 83 86 86 84 81 79 78 78 84 88 88 DEWPT 77 77 77 77 77 77 78 78 78 78 78 78 78 78 79 79 78 78 78 78 78 RH 100 97 82 70 72 77 88 97100100 85 77 77 82 94100100100 82 72 72 WIND DIR E NE E E E E E E E E E E E E E E E E E E E WIND SPD 4 6 10 9 9 9 6 5 4 5 9 9 9 11 9 6 6 11 12 10 9 CLOUDS OV B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 60 40 30 30 30 QPF 12HR 0.04 0.08 0.11 0.08 0.08 RAIN SHWRS L C C C C C C C C 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 S S S HEAT INDEX 93 99 99 96 91 84 92 98 97 94 90 95102101 MAX HEAT 93 99 98 89 92 98 97 89 95 102 DATE TUE 08/26/25 WED 08/27/25 THU 08/28/25 FRI 08/29/25 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 77 88 77 87 77 87 77 87 TEMP 82 78 83 87 82 78 83 86 81 78 83 86 81 78 83 86 DEWPT 79 79 79 79 79 79 79 79 79 79 79 79 79 79 79 79 PWIND DIR E E E SE SE SE E E WIND CHAR GN GN GN GN LT GN LT GN AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 30 30 30 30 30 30 30 30 RAIN SHWRS C S C C 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 $$ MPZ003-230600- SAIPAN INTERNATIONAL AIRPORT-OBYAN MP 15.11N 145.72E ELEV. 215 FT 337 AM CHST SAT AUG 23 2025 DATE SAT 08/23/25 SUN 08/24/25 MON 08/25/25 CHST3HRLY 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MAX/MIN 88 77 86 77 88 TEMP 77 78 84 88 87 85 82 79 78 78 82 86 85 84 81 79 78 78 84 88 88 DEWPT 77 77 77 77 77 77 78 78 78 78 78 78 78 78 79 78 78 78 78 79 78 RH 100 97 80 70 72 77 88 97100100 88 77 80 82 94 97100100 82 75 72 WIND DIR E NE E E E E E E E E E E E E E E NE E E E E WIND SPD 3 5 9 9 9 9 6 5 4 5 9 9 9 11 9 6 6 11 12 10 9 CLOUDS OV B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 60 40 30 30 30 QPF 12HR 0.03 0.07 0.10 0.07 0.07 RAIN SHWRS L C C C C C C C C C C C C C C C C C C C C TSTMS S S S S S S S S S S S S S S S S S S S S S HEAT INDEX 93100 99 96 91 84 92 98 97 94 90 95102101 MAX HEAT 93 100 98 89 92 98 96 89 95 102 DATE TUE 08/26/25 WED 08/27/25 THU 08/28/25 FRI 08/29/25 CHST6HRLY 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MIN/MAX 77 88 77 87 77 87 77 87 TEMP 82 78 83 87 82 78 83 86 81 78 83 86 81 78 83 86 DEWPT 79 79 79 79 79 79 79 79 79 79 79 79 80 79 79 79 PWIND DIR E E E SE SE SE E E WIND CHAR GN GN GN GN GN GN LT GN AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 30 30 30 30 30 30 30 30 RAIN SHWRS C S C C C C C C C C C C C C C S TSTMS S S S S S S S S S S S S S S S S $$