Point Forecast Matrices
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
267 FOMY50 PGUM 291720 PFMGUM POINT FORECAST MATRICES NATIONAL WEATHER SERVICE TIYAN GU 318 AM CHST SAT AUG 30 2025 GUZ001-300600- GUAM INTERNATIONAL AIRPORT-TIYAN GU 13.48N 144.79E ELEV. 248 FT 318 AM CHST SAT AUG 30 2025 DATE SAT 08/30/25 SUN 08/31/25 MON 09/01/25 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 77 86 77 88 TEMP 77 78 82 86 85 83 81 79 78 78 82 86 85 83 81 79 78 78 84 88 87 DEWPT 78 78 78 78 78 78 77 77 77 77 77 78 77 77 78 78 78 78 78 78 78 RH 103100 88 77 80 85 88 94 97 97 85 77 77 82 91 97100100 82 72 75 WIND DIR SE E E SE S NW NE S SE NW N N E E E SE SE SW E E NE WIND SPD 9 6 5 5 11 3 3 23 8 1 1 3 5 6 5 4 3 1 6 6 8 CLOUDS B2 OV OV OV OV OV OV OV OV B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 60 70 70 50 30 QPF 12HR 1.06 1.73 0.36 0.15 0.10 RAIN SHWRS C L L L L L L L L 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 92 98 97 94 89 91 97 96 93 89 94101100 MAX HEAT 92 98 96 87 91 97 95 88 94 101 DATE TUE 09/02/25 WED 09/03/25 THU 09/04/25 FRI 09/05/25 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 86 77 86 77 86 77 88 TEMP 82 78 82 85 81 78 82 85 81 78 82 85 81 78 83 87 DEWPT 78 78 78 78 78 78 78 78 78 78 78 78 79 78 78 78 PWIND DIR NE NE E SE SE SE SE E WIND CHAR GN GN GN GN GN LT LT LT AVG CLOUDS B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 POP 12HR 40 40 40 40 40 40 40 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 $$ MPZ001-300600- ROTA INTERNATIONAL AIRPORT-SINAPALU MP 14.17N 145.23E ELEV. 592 FT 318 AM CHST SAT AUG 30 2025 DATE SAT 08/30/25 SUN 08/31/25 MON 09/01/25 CHST3HRLY 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MAX/MIN 85 76 85 76 87 TEMP 76 77 81 85 84 82 80 78 76 77 81 85 84 82 80 78 76 77 82 86 86 DEWPT 76 77 78 78 78 78 78 77 76 77 77 78 78 78 78 78 76 77 78 78 78 RH 100100 91 80 82 88 94 97100100 88 80 82 88 94100100100 88 77 77 WIND DIR E SE SE S E SW E SE S SW SW SW E E E SE SE E E E NE WIND SPD 10 6 8 3 4 8 4 18 16 8 5 4 1 5 6 6 2 2 10 10 10 CLOUDS B2 OV OV OV OV OV OV OV OV B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 60 70 70 50 30 QPF 12HR 0.99 2.05 0.39 0.12 0.10 RAIN SHWRS C L L L L L L L L C C C C C C C C C C C C TSTMS S S S S S S S S S S S S S S S S S S S S S HEAT INDEX 90 96 95 91 85 89 96 95 91 86 91 99 98 MAX HEAT 90 96 94 89 96 94 91 99 DATE TUE 09/02/25 WED 09/03/25 THU 09/04/25 FRI 09/05/25 CHST6HRLY 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MIN/MAX 76 85 76 85 76 85 76 86 TEMP 81 76 81 84 80 76 81 84 80 76 81 84 80 76 82 85 DEWPT 78 76 78 78 78 76 78 78 79 76 78 78 79 76 79 78 PWIND DIR NE NE E SE SE SE E E WIND CHAR GN GN GN GN GN GN GN GN AVG CLOUDS B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 POP 12HR 40 40 40 40 40 40 40 30 RAIN SHWRS C C C C C C C C C C C C C C C C TSTMS S S S S S S S S S S S S S S S S $$ MPZ002-300600- TINIAN-SAN JOSE MP 14.97N 145.63E ELEV. 74 FT 318 AM CHST SAT AUG 30 2025 DATE SAT 08/30/25 SUN 08/31/25 MON 09/01/25 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 85 77 85 77 88 TEMP 77 78 82 85 85 83 81 79 77 78 82 85 85 83 81 79 77 78 83 87 87 DEWPT 78 78 78 77 78 78 78 77 77 77 77 78 78 78 78 78 77 78 78 78 78 RH 103100 88 77 80 85 91 94100 97 85 80 80 85 91 97100100 85 75 75 WIND DIR E SE E SE E E S S S SW SW SW S SE SE SE SE E E E NE WIND SPD 10 11 9 6 3 13 10 16 20 13 11 6 4 5 5 5 2 2 8 10 10 CLOUDS B2 OV OV OV OV OV OV OV OV B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 60 70 70 50 30 QPF 12HR 0.22 1.38 0.39 0.06 0.11 RAIN SHWRS C L L L L L L L L 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 91 96 95 92 89 90 96 95 92 89 93100 99 MAX HEAT 91 96 95 87 90 96 95 88 93 100 DATE TUE 09/02/25 WED 09/03/25 THU 09/04/25 FRI 09/05/25 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 85 77 85 77 85 77 87 TEMP 82 78 82 85 81 77 82 85 81 77 82 85 81 77 83 86 DEWPT 78 78 78 78 78 77 78 78 79 77 78 78 79 77 78 78 PWIND DIR NE NE E SE SE SE E E WIND CHAR GN GN GN GN GN GN LT GN AVG CLOUDS B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 POP 12HR 40 40 40 40 40 40 40 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 $$ MPZ003-300600- SAIPAN INTERNATIONAL AIRPORT-OBYAN MP 15.11N 145.72E ELEV. 215 FT 318 AM CHST SAT AUG 30 2025 DATE SAT 08/30/25 SUN 08/31/25 MON 09/01/25 CHST3HRLY 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MAX/MIN 85 77 85 77 87 TEMP 77 78 82 85 85 83 81 79 77 78 82 85 85 83 81 79 77 78 83 87 87 DEWPT 78 78 78 78 78 78 78 77 77 77 77 78 78 78 78 78 77 78 78 78 78 RH 103100 88 80 80 85 91 94100 97 85 80 80 85 91 97100100 85 75 75 WIND DIR E E SE SE E E S S S SW SW SW S SE SE SE SE E E E NE WIND SPD 11 9 8 6 4 12 12 16 18 14 11 6 5 5 5 5 3 2 9 10 10 CLOUDS B2 OV OV OV OV OV OV OV OV B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 60 70 70 50 30 QPF 12HR 0.36 1.27 0.40 0.06 0.11 RAIN SHWRS C L L L L L L L L C C C C C C C C C C C C TSTMS S S S S S S S S S S S S S S S S S S S S S HEAT INDEX 91 96 96 93 89 90 96 95 93 89 93100 99 MAX HEAT 91 96 95 87 90 96 95 88 93 100 DATE TUE 09/02/25 WED 09/03/25 THU 09/04/25 FRI 09/05/25 CHST6HRLY 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MIN/MAX 77 85 77 85 77 85 77 87 TEMP 82 78 82 85 81 77 82 85 81 77 82 85 81 77 83 86 DEWPT 78 78 78 78 78 77 78 78 79 77 78 78 79 77 78 78 PWIND DIR NE NE E SE SE SE E E WIND CHAR GN GN GN GN GN GN LT GN AVG CLOUDS B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 POP 12HR 40 40 40 40 40 40 40 30 RAIN SHWRS C C C C C C C C C C C C C C C C TSTMS S S S S S S S S S S S S S S S S $$