Point Forecast Matrices
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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822 FOMY50 PGUM 280550 PFMGUM POINT FORECAST MATRICES NATIONAL WEATHER SERVICE TIYAN GU 341 PM CHST THU AUG 28 2025 GUZ001-281800- GUAM INTERNATIONAL AIRPORT-TIYAN GU 13.48N 144.79E ELEV. 248 FT 341 PM CHST THU AUG 28 2025 DATE THU 08/28/25 FRI 08/29/25 SAT 08/30/25 SUN CHST3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MIN/MAX 77 88 77 88 77 TEMP 87 85 82 79 78 78 83 88 87 85 82 79 78 78 83 88 87 85 82 79 78 DEWPT 78 78 79 79 78 78 78 78 79 79 79 79 78 78 78 78 79 79 79 78 78 RH 75 80 91100100100 85 72 77 82 91100100100 85 72 77 82 91 97100 WIND DIR SE SE E E E E E E E E E E E E E E SE S S S SW WIND SPD 8 6 5 6 6 6 10 10 10 9 6 5 4 6 10 8 6 5 8 6 8 CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 B1 B1 B1 B1 POP 12HR 30 20 50 50 40 QPF 12HR 0.11 0.13 0.50 0.50 0.38 RAIN SHWRS C C 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 S S S HEAT INDEX 100 96 92 84 94101101 97 92 84 94101101 97 91 84 MAX HEAT 100 99 90 94 101 100 90 94 101 100 90 DATE 08/31/25 MON 09/01/25 TUE 09/02/25 WED 09/03/25 THU 09/04/25 CHST6HRLY 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MAX/MIN 88 77 88 77 88 77 88 80 86 TEMP 83 87 82 78 84 87 82 78 83 87 82 78 83 87 84 81 84 85 DEWPT 78 78 78 78 78 78 78 78 78 78 78 78 78 78 79 78 78 78 PWIND DIR S S SE E NE NE SE SE S WIND CHAR GN LT LT LT GN GN GN GN GN AVG CLOUDS B2 OV B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 60 60 30 30 30 40 40 40 40 RAIN SHWRS L L L C C C C S 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 $$ MPZ001-281800- ROTA INTERNATIONAL AIRPORT-SINAPALU MP 14.17N 145.23E ELEV. 592 FT 341 PM CHST THU AUG 28 2025 DATE THU 08/28/25 FRI 08/29/25 SAT 08/30/25 SUN CHST3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MIN/MAX 76 85 76 85 76 TEMP 85 83 80 78 76 77 81 85 85 83 80 78 76 77 81 85 85 83 80 78 76 DEWPT 78 79 79 78 76 77 79 79 79 79 79 78 76 77 79 79 79 79 79 78 76 RH 80 88 97100100100 94 82 82 88 97100100100 94 82 82 88 97100100 WIND DIR SE E E E E E E E E E E E E E E E SE SE S S S WIND SPD 9 8 8 10 9 10 12 12 12 10 10 8 8 11 12 10 8 6 10 11 10 CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 B1 B1 B1 B1 POP 12HR 30 20 40 40 40 QPF 12HR 0.14 0.11 0.34 0.50 0.38 RAIN SHWRS C S S S S S S S S C C C C C C C C C C C C TSTMS S S S S S S S S S S S S S S S S S S S S S HEAT INDEX 96 93 88 91 98 97 94 89 91 97 97 93 88 MAX HEAT 97 95 84 91 98 96 84 91 97 95 84 DATE 08/31/25 MON 09/01/25 TUE 09/02/25 WED 09/03/25 THU 09/04/25 CHST6HRLY 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MAX/MIN 85 76 87 76 86 76 86 80 85 TEMP 81 85 80 76 82 86 81 76 82 85 80 76 82 85 83 81 83 85 DEWPT 78 78 79 76 78 78 78 76 78 78 78 76 78 78 78 78 78 78 PWIND DIR S S SE E E E E SE SE WIND CHAR GN LT LT LT GN GN GN GN GN AVG CLOUDS OV OV B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B2 B1 B1 POP 12HR 60 60 40 40 30 30 30 40 40 RAIN SHWRS O O O C C C C C C S C C C C C C C C TSTMS S S S S S S S S S S S S S S S $$ MPZ002-281800- TINIAN-SAN JOSE MP 14.97N 145.63E ELEV. 74 FT 341 PM CHST THU AUG 28 2025 DATE THU 08/28/25 FRI 08/29/25 SAT 08/30/25 SUN CHST3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MIN/MAX 77 87 77 87 77 TEMP 86 84 81 79 78 78 83 86 86 84 81 79 78 78 83 86 86 84 81 79 78 DEWPT 78 79 79 79 78 78 79 79 79 79 79 79 78 78 79 79 79 79 79 79 78 RH 77 85 94100100100 88 80 80 85 94100100100 88 80 80 85 94100100 WIND DIR SE E E E E E E E E E E E E E E E E SE SE S S WIND SPD 9 8 9 17 10 11 12 12 12 10 11 9 8 11 11 12 11 11 11 10 10 CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 40 30 30 30 30 QPF 12HR 0.22 0.20 0.30 0.27 0.37 RAIN SHWRS C C S S S 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 98 95 91 93100 99 96 92 93100 99 95 91 MAX HEAT 99 98 89 93 100 98 90 93 100 98 89 DATE 08/31/25 MON 09/01/25 TUE 09/02/25 WED 09/03/25 THU 09/04/25 CHST6HRLY 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MAX/MIN 87 77 88 77 87 77 87 80 85 TEMP 83 86 81 78 83 87 82 78 83 86 82 78 83 86 83 81 83 85 DEWPT 78 78 78 78 78 78 78 78 78 78 79 78 78 78 78 78 78 78 PWIND DIR S S SE E E E E SE SE WIND CHAR GN GN LT LT LT GN GN GN GN AVG CLOUDS OV OV B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 60 60 40 40 30 30 30 40 40 RAIN SHWRS O O O C C C C C C S C C C C C C C C TSTMS S S S S S S S S S S S S S S S $$ MPZ003-281800- SAIPAN INTERNATIONAL AIRPORT-OBYAN MP 15.11N 145.72E ELEV. 215 FT 341 PM CHST THU AUG 28 2025 DATE THU 08/28/25 FRI 08/29/25 SAT 08/30/25 SUN CHST3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MIN/MAX 77 87 77 87 77 TEMP 86 84 81 79 78 78 83 86 86 84 81 79 78 78 83 86 86 84 81 79 78 DEWPT 79 79 79 79 78 78 79 79 79 79 80 79 78 78 79 79 79 79 79 79 78 RH 80 85 94100100100 88 80 80 85 97100100100 88 80 80 85 94100100 WIND DIR SE E E E E E E E E E E E E E E E E SE SE S S WIND SPD 10 9 9 13 10 10 12 12 12 11 12 9 8 10 11 12 11 11 11 10 10 CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 40 30 30 30 30 QPF 12HR 0.28 0.18 0.23 0.26 0.37 RAIN SHWRS C C S S S C C C C C C C C C C C C C C C C TSTMS S S S S S S S S S S S S S S S S S S S S S HEAT INDEX 99 95 91 93100 99 96 92 93100 99 95 91 MAX HEAT 99 98 89 93 100 99 90 93 100 98 89 DATE 08/31/25 MON 09/01/25 TUE 09/02/25 WED 09/03/25 THU 09/04/25 CHST6HRLY 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MAX/MIN 87 77 87 77 87 77 87 80 85 TEMP 83 86 81 78 83 87 82 78 83 86 82 78 83 86 83 81 83 85 DEWPT 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 PWIND DIR S S S E E E E SE SE WIND CHAR GN GN LT LT LT GN GN GN GN AVG CLOUDS OV OV B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 60 60 40 40 30 30 30 40 40 RAIN SHWRS O O O C C C C C C S C C C C C C C C TSTMS S S S S S S S S S S S S S S S $$