Point Forecast Matrices
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
Versions:
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740 FOMY50 PGUM 271800 PFMGUM POINT FORECAST MATRICES NATIONAL WEATHER SERVICE TIYAN GU 357 AM CHST THU AUG 28 2025 GUZ001-280600- GUAM INTERNATIONAL AIRPORT-TIYAN GU 13.48N 144.79E ELEV. 248 FT 357 AM CHST THU AUG 28 2025 DATE THU 08/28/25 FRI 08/29/25 SAT 08/30/25 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 88 77 88 TEMP 77 78 83 88 87 85 82 79 78 78 83 88 87 85 82 79 78 78 83 88 87 DEWPT 78 78 78 78 78 78 79 79 78 78 78 78 79 79 79 79 78 78 78 78 79 RH 103100 85 72 75 80 91100100100 85 72 77 82 91100100100 85 72 77 WIND DIR SE SE SE SE SE SE E E E E E E E E E E E E SE SE S WIND SPD 4 5 9 8 8 9 8 8 6 9 10 9 9 9 9 8 6 6 6 4 4 CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 POP 12HR 40 30 30 50 50 QPF 12HR 0.23 0.12 0.20 0.53 0.63 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 94101100 96 92 84 94101101 97 92 84 94101101 MAX HEAT 94 101 99 90 94 101 100 90 94 101 DATE SUN 08/31/25 MON 09/01/25 TUE 09/02/25 WED 09/03/25 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 84 87 82 78 83 87 82 78 83 87 DEWPT 79 78 78 78 78 78 78 78 77 77 77 77 77 77 77 77 PWIND DIR S S S SE E E E E WIND CHAR LT GN GN LT LT LT LT LT AVG CLOUDS B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 50 50 40 40 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 $$ MPZ001-280600- ROTA INTERNATIONAL AIRPORT-SINAPALU MP 14.17N 145.23E ELEV. 592 FT 357 AM CHST THU AUG 28 2025 DATE THU 08/28/25 FRI 08/29/25 SAT 08/30/25 CHST3HRLY 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MAX/MIN 85 76 85 76 85 TEMP 76 77 81 85 85 83 80 78 76 77 81 85 85 83 80 78 76 77 81 85 85 DEWPT 76 77 79 78 78 79 79 78 76 77 79 79 79 79 79 78 76 77 79 79 79 RH 100100 94 80 80 88 97100100100 94 82 82 88 97100100100 94 82 82 WIND DIR SE SE SE SE SE SE E E E E E E E E E E E E E SE SE WIND SPD 5 5 9 9 9 9 9 11 9 10 11 11 10 11 10 9 8 8 9 8 5 CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 POP 12HR 40 30 30 40 50 QPF 12HR 0.36 0.17 0.15 0.46 0.63 RAIN SHWRS C C C C C S S S S C C C C C C C C C C C C TSTMS S S S S S S S S S S S S S S S S S S S S S HEAT INDEX 91 97 96 93 88 91 98 97 94 89 91 97 97 MAX HEAT 91 97 95 84 91 98 96 84 91 97 DATE SUN 08/31/25 MON 09/01/25 TUE 09/02/25 WED 09/03/25 CHST6HRLY 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MIN/MAX 76 85 76 87 76 86 76 86 TEMP 80 76 81 85 80 76 82 86 81 76 82 85 80 76 82 86 DEWPT 79 76 78 78 79 76 78 78 77 77 77 77 77 77 77 77 PWIND DIR S S S SE E E E E WIND CHAR LT GN GN LT LT LT LT LT AVG CLOUDS B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 50 50 50 40 30 30 30 30 RAIN SHWRS C C C C C C C C C C C C C C C C TSTMS S S S S S S S S S S S S S S S S $$ MPZ002-280600- TINIAN-SAN JOSE MP 14.97N 145.63E ELEV. 74 FT 357 AM CHST THU AUG 28 2025 DATE THU 08/28/25 FRI 08/29/25 SAT 08/30/25 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 77 87 77 87 TEMP 77 78 83 86 86 84 81 79 78 78 83 86 86 84 81 79 78 78 83 86 86 DEWPT 78 78 79 78 78 79 79 79 78 78 79 79 79 79 79 79 78 78 79 79 79 RH 103100 88 77 77 85 94100100100 88 80 80 85 94100100100 88 80 80 WIND DIR E SE SE SE SE E E E E E E E E E E E E E E E E WIND SPD 5 6 10 10 9 10 12 12 9 10 12 11 11 10 10 9 8 10 12 10 10 CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 POP 12HR 40 40 30 40 40 QPF 12HR 0.55 0.22 0.13 0.36 0.55 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 91 93100 99 96 92 93100 99 MAX HEAT 93 99 98 89 93 100 98 90 93 100 DATE SUN 08/31/25 MON 09/01/25 TUE 09/02/25 WED 09/03/25 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 87 77 88 77 87 77 87 TEMP 81 78 83 86 81 78 83 87 82 78 83 86 82 78 83 86 DEWPT 79 78 78 78 78 78 78 78 77 77 77 77 77 77 77 77 PWIND DIR SE S S SE E E E E WIND CHAR GN BZ GN LT LT LT LT LT AVG CLOUDS B2 B2 B2 OV B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 50 50 50 40 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 $$ MPZ003-280600- SAIPAN INTERNATIONAL AIRPORT-OBYAN MP 15.11N 145.72E ELEV. 215 FT 357 AM CHST THU AUG 28 2025 DATE THU 08/28/25 FRI 08/29/25 SAT 08/30/25 CHST3HRLY 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MAX/MIN 87 77 87 77 87 TEMP 77 78 83 86 86 84 81 79 78 78 83 86 86 84 81 79 78 78 83 86 86 DEWPT 78 78 79 79 79 79 79 79 78 78 79 79 79 79 80 79 78 78 79 79 79 RH 103100 88 80 80 85 94100100100 88 80 80 85 97100100100 88 80 80 WIND DIR E SE SE SE SE E E E E E E E E E E E E E E E E WIND SPD 6 6 10 10 10 10 12 12 9 10 12 11 11 11 10 9 8 10 12 11 10 CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 POP 12HR 40 40 30 40 40 QPF 12HR 0.59 0.23 0.12 0.34 0.52 RAIN SHWRS C C C C C S S S S C C C C C C C C C C C C TSTMS S S S S S S S S S S S S S S S S S S S S S HEAT INDEX 93100 99 95 91 93100 99 96 92 93100 99 MAX HEAT 93 100 98 89 93 100 99 90 93 100 DATE SUN 08/31/25 MON 09/01/25 TUE 09/02/25 WED 09/03/25 CHST6HRLY 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MIN/MAX 77 87 77 87 77 87 77 87 TEMP 81 78 83 86 81 78 83 87 82 78 83 86 82 78 83 86 DEWPT 79 78 78 78 78 78 78 78 77 77 77 77 77 77 77 77 PWIND DIR SE S S SE E E E E WIND CHAR GN BZ GN LT LT LT LT LT AVG CLOUDS B2 B2 OV OV B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 50 50 50 40 30 30 30 30 RAIN SHWRS C C C C C C C C C C C C C C C C TSTMS S S S S S S S S S S S S S S S S $$