Point Forecast Matrices
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
Versions:
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974 FOMY50 PGUM 030510 PFMGUM POINT FORECAST MATRICES NATIONAL WEATHER SERVICE TIYAN GU 301 PM CHST WED SEP 3 2025 GUZ001-031800- GUAM INTERNATIONAL AIRPORT-TIYAN GU 13.48N 144.79E ELEV. 248 FT 301 PM CHST WED SEP 3 2025 DATE WED 09/03/25 THU 09/04/25 FRI 09/05/25 SAT 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 78 87 78 87 78 TEMP 86 84 82 80 78 79 83 87 86 84 82 80 78 79 83 87 86 84 82 80 78 DEWPT 78 77 77 78 78 78 78 78 78 78 79 78 78 78 78 78 78 79 79 79 78 RH 77 80 85 94100 97 85 75 77 82 91 94100 97 85 75 77 85 91 97100 WIND DIR E E E E E E E E E E E E E NE E E E E E E E WIND SPD 10 11 9 6 6 8 10 10 12 9 10 4 2 3 8 10 8 8 6 6 5 CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 40 40 50 50 30 QPF 12HR 0.28 0.15 0.09 0.10 0.06 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 HEAT INDEX 98 94 90 85 93100 99 96 92 85 94100 99 96 92 85 MAX HEAT 98 97 89 93 100 98 90 94 100 98 90 DATE 09/06/25 SUN 09/07/25 MON 09/08/25 TUE 09/09/25 WED 09/10/25 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 78 87 78 87 78 87 78 87 TEMP 83 86 82 78 83 86 82 78 83 86 82 78 83 86 82 78 83 86 DEWPT 78 78 79 78 78 78 78 78 78 78 78 78 78 78 79 78 78 78 PWIND DIR E E E E E E E E E WIND CHAR LT LT LT LT LT LT LT LT GN AVG CLOUDS B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 30 30 20 20 20 20 20 20 20 RAIN SHWRS C C C S S S S 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 S S $$ MPZ001-031800- ROTA INTERNATIONAL AIRPORT-SINAPALU MP 14.17N 145.23E ELEV. 592 FT 301 PM CHST WED SEP 3 2025 DATE WED 09/03/25 THU 09/04/25 FRI 09/05/25 SAT CHST3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MIN/MAX 79 87 79 87 79 TEMP 86 84 82 80 79 80 84 87 86 85 83 81 79 80 84 87 86 85 83 81 79 DEWPT 78 77 78 78 78 78 78 78 78 78 79 79 78 78 78 78 78 78 79 79 78 RH 77 80 88 94 97 94 82 75 77 80 88 94 97 94 82 75 77 80 88 94 97 WIND DIR E E E E E E E E E E E E E E E E E E E E E WIND SPD 13 10 10 9 8 9 11 10 12 13 11 9 6 5 10 10 9 6 6 6 5 CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 40 40 40 40 30 QPF 12HR 0.25 0.19 0.17 0.15 0.05 RAIN SHWRS C C C C C S S S S C C C C C C C C C C C C TSTMS S S S S S S S S S HEAT INDEX 97 94 91 88 84 85 94100 99 96 93 89 84 85 94100 99 96 93 89 84 MAX HEAT 98 97 90 94 100 98 91 94 100 98 92 DATE 09/06/25 SUN 09/07/25 MON 09/08/25 TUE 09/09/25 WED 09/10/25 CHST6HRLY 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MAX/MIN 87 79 87 79 87 79 87 79 87 TEMP 84 86 83 79 84 86 83 79 84 86 83 79 84 86 83 79 84 86 DEWPT 78 78 78 78 78 78 78 78 78 78 78 78 78 78 79 78 78 79 PWIND DIR E E E E E E E E E WIND CHAR LT LT LT LT LT LT LT GN GN AVG CLOUDS B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 30 30 20 20 20 20 20 20 20 RAIN SHWRS C C C S S S S S S S S S S S S S S S TSTMS S S S S S S S S S S S S $$ MPZ002-031800- TINIAN-SAN JOSE MP 14.97N 145.63E ELEV. 74 FT 301 PM CHST WED SEP 3 2025 DATE WED 09/03/25 THU 09/04/25 FRI 09/05/25 SAT 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 78 87 78 87 78 TEMP 85 84 82 79 78 79 83 87 86 84 82 80 78 79 83 87 86 84 82 80 78 DEWPT 78 77 78 78 78 78 78 78 78 78 79 79 78 78 78 78 78 78 79 79 78 RH 80 80 88 97100 97 85 75 77 82 91 97100 97 85 75 77 82 91 97100 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 10 11 10 9 9 9 9 9 11 11 9 6 5 5 8 9 8 8 8 6 5 CLOUDS B1 B1 B1 B1 B1 SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 30 30 30 30 30 QPF 12HR 0.06 0.18 0.21 0.13 0.07 RAIN SHWRS S 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 HEAT INDEX 97 94 90 85 93 99 99 96 91 85 93 99 98 96 92 85 MAX HEAT 97 96 89 93 99 98 90 93 99 98 90 DATE 09/06/25 SUN 09/07/25 MON 09/08/25 TUE 09/09/25 WED 09/10/25 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 78 87 78 87 78 87 78 87 TEMP 83 86 82 78 83 86 82 78 83 86 82 78 83 86 82 78 83 86 DEWPT 78 78 79 78 78 77 78 78 78 78 79 78 78 78 79 78 78 78 PWIND DIR E E E E E E E E E WIND CHAR GN LT LT LT LT LT LT GN GN AVG CLOUDS B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 30 30 20 20 20 20 20 20 20 RAIN SHWRS C C C S S S S S S S S S S S S S S S TSTMS S S S S S S $$ MPZ003-031800- SAIPAN INTERNATIONAL AIRPORT-OBYAN MP 15.11N 145.72E ELEV. 215 FT 301 PM CHST WED SEP 3 2025 DATE WED 09/03/25 THU 09/04/25 FRI 09/05/25 SAT CHST3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MIN/MAX 78 87 78 87 78 TEMP 85 84 82 79 78 79 83 87 86 84 82 80 78 79 83 87 86 84 82 80 78 DEWPT 78 78 78 78 77 78 78 78 78 78 79 78 78 78 78 78 78 78 79 78 78 RH 80 82 88 97 97 97 85 75 77 82 91 94100 97 85 75 77 82 91 94100 WIND DIR E E E E E E E E E E E E E E E E E E E E E WIND SPD 9 11 11 10 8 9 9 9 10 11 9 6 5 4 8 9 8 8 8 6 5 CLOUDS B1 B1 B1 B1 B1 SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 30 30 30 30 30 QPF 12HR 0.06 0.16 0.22 0.15 0.07 RAIN SHWRS S C C C C S S S S C C C C C C C C C C C C TSTMS S S S S S S S S S HEAT INDEX 97 94 90 84 93 99 99 96 91 85 93 99 99 96 91 85 MAX HEAT 97 96 89 93 99 98 90 93 99 98 90 DATE 09/06/25 SUN 09/07/25 MON 09/08/25 TUE 09/09/25 WED 09/10/25 CHST6HRLY 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MAX/MIN 87 78 87 78 87 78 87 78 87 TEMP 83 86 82 78 83 86 82 78 83 86 82 78 83 86 82 78 83 86 DEWPT 78 78 78 78 78 78 78 78 78 78 78 78 78 78 79 78 78 79 PWIND DIR E E E E E E E E E WIND CHAR GN LT LT LT LT LT LT GN GN AVG CLOUDS B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 30 30 20 20 20 20 20 20 20 RAIN SHWRS C C C S S S S S S S S S S S S S S S TSTMS S S S S S S $$