Point Forecast Matrices
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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896 FOMY50 PGUM 041750 PFMGUM POINT FORECAST MATRICES NATIONAL WEATHER SERVICE TIYAN GU 343 AM CHST FRI SEP 5 2025 GUZ001-050600- GUAM INTERNATIONAL AIRPORT-TIYAN GU 13.48N 144.79E ELEV. 248 FT 343 AM CHST FRI SEP 5 2025 DATE FRI 09/05/25 SAT 09/06/25 SUN 09/07/25 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 78 87 78 87 TEMP 78 79 83 87 86 84 82 80 78 79 83 87 86 84 82 80 78 79 83 87 86 DEWPT 78 78 78 78 78 79 79 79 78 78 78 78 78 79 79 79 78 78 78 78 78 RH 100 97 85 75 77 85 91 97100 97 85 75 77 85 91 97100 97 85 75 77 WIND DIR E E E E E E E E E E E E E E E W NE SE E E SE WIND SPD 4 5 8 5 8 8 5 5 4 4 6 4 3 4 1 0 1 1 5 3 4 CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC POP 12HR 40 40 30 30 30 QPF 12HR 0.31 0.12 0.09 0.11 0.06 RAIN SHWRS C C C C C C C C C C C C C C C C C S S S S TSTMS S S S S S S S S S S S S S S S S S S S S S HEAT INDEX 94100 99 96 92 85 94100 99 96 92 85 93 99 99 MAX HEAT 94 100 98 90 94 100 98 90 93 99 DATE MON 09/08/25 TUE 09/09/25 WED 09/10/25 THU 09/11/25 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 78 87 78 87 78 87 79 88 TEMP 82 78 83 86 82 78 83 86 82 78 83 86 83 79 84 87 DEWPT 78 78 78 78 78 78 78 78 79 78 78 78 79 79 79 79 PWIND DIR SE E E E E E E E WIND CHAR LT LT LT LT GN GN GN GN AVG CLOUDS SC SC SC SC B1 B1 B1 B1 B1 SC B1 B1 B1 B1 B1 B1 POP 12HR 20 20 30 30 20 20 30 30 RAIN SHWRS S S S S C C C S S S S S C C C S TSTMS S S S S $$ MPZ001-050600- ROTA INTERNATIONAL AIRPORT-SINAPALU MP 14.17N 145.23E ELEV. 592 FT 343 AM CHST FRI SEP 5 2025 DATE FRI 09/05/25 SAT 09/06/25 SUN 09/07/25 CHST3HRLY 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MAX/MIN 87 79 87 79 87 TEMP 79 80 84 87 86 85 83 80 79 80 84 87 86 85 83 80 79 80 84 87 86 DEWPT 78 78 78 78 78 78 79 79 78 78 78 78 78 79 78 78 78 78 78 78 78 RH 97 94 82 75 77 80 88 97 97 94 82 75 77 82 85 94 97 94 82 75 77 WIND DIR E E NE E E E E E E E E E E E E NE E E E E SE WIND SPD 8 10 10 9 10 10 9 8 6 8 8 6 6 4 5 4 4 3 9 6 8 CLOUDS B1 B1 B1 B1 B1 SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC POP 12HR 30 30 20 30 30 QPF 12HR 0.25 0.08 0.09 0.16 0.07 RAIN SHWRS C C C C C S S S S S S S S C C C C S S S S TSTMS S S S S S S S S S S S S S S S S S HEAT INDEX 84 85 94100 99 96 93 89 84 85 94100 99 97 92 89 84 85 94100 99 MAX HEAT 85 94 100 98 92 94 100 99 91 94 100 DATE MON 09/08/25 TUE 09/09/25 WED 09/10/25 THU 09/11/25 CHST6HRLY 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MIN/MAX 79 87 79 87 79 87 79 87 TEMP 83 79 84 86 83 79 84 86 83 79 84 86 83 79 84 86 DEWPT 78 78 78 78 78 78 78 78 79 78 78 79 79 79 79 79 PWIND DIR E E E E E E E E WIND CHAR LT LT LT GN GN GN GN GN AVG CLOUDS SC SC SC SC B1 B1 B1 B1 B1 SC B1 B1 B1 B1 B1 B1 POP 12HR 20 20 20 20 20 20 20 20 RAIN SHWRS S S S S S S S S S S S S S S S S TSTMS S S S $$ MPZ002-050600- TINIAN-SAN JOSE MP 14.97N 145.63E ELEV. 74 FT 343 AM CHST FRI SEP 5 2025 DATE FRI 09/05/25 SAT 09/06/25 SUN 09/07/25 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 78 87 78 87 TEMP 78 79 83 87 86 84 82 80 78 79 83 87 86 84 82 80 78 79 83 87 86 DEWPT 78 78 78 78 78 78 79 79 78 78 78 78 78 78 79 79 78 78 78 78 77 RH 100 97 85 75 77 82 91 97100 97 85 75 77 82 91 97100 97 85 75 75 WIND DIR E E E E E E E E E E E E E E E E E E E E SE WIND SPD 8 9 9 9 10 10 9 8 6 8 9 8 6 6 5 5 6 6 8 8 9 CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC B1 B1 B1 B1 SC SC SC SC POP 12HR 30 20 20 30 30 QPF 12HR 0.27 0.09 0.03 0.18 0.07 RAIN SHWRS C S S S S S S S S S S S S C C C C S S S S TSTMS S S S S S HEAT INDEX 93 99 98 96 92 85 93100 99 96 91 85 93 99 98 MAX HEAT 93 99 98 90 93 100 98 90 93 99 DATE MON 09/08/25 TUE 09/09/25 WED 09/10/25 THU 09/11/25 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 78 87 78 87 78 87 78 88 TEMP 82 78 83 86 82 78 83 86 82 78 83 86 82 79 84 87 DEWPT 78 78 78 78 79 78 78 78 79 78 78 78 79 79 79 79 PWIND DIR E E E E E E E E WIND CHAR GN LT LT GN GN GN GN GN AVG CLOUDS SC SC SC SC B1 B1 B1 B1 SC SC SC SC B1 B1 B1 B1 POP 12HR 20 20 20 20 20 20 20 20 RAIN SHWRS S S S S S S S S S S S S S S S S $$ MPZ003-050600- SAIPAN INTERNATIONAL AIRPORT-OBYAN MP 15.11N 145.72E ELEV. 215 FT 343 AM CHST FRI SEP 5 2025 DATE FRI 09/05/25 SAT 09/06/25 SUN 09/07/25 CHST3HRLY 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MAX/MIN 87 78 87 78 87 TEMP 78 79 83 87 86 84 82 80 78 79 83 87 86 84 82 80 78 79 83 87 86 DEWPT 78 78 78 78 78 78 79 78 78 78 78 78 78 78 78 78 78 78 78 78 78 RH 100 97 85 75 77 82 91 94100 97 85 75 77 82 88 94100 97 85 75 77 WIND DIR E E E E E E E E E E E E E E E E E E E E E WIND SPD 6 9 9 9 9 9 9 8 5 8 9 8 6 6 5 4 5 6 8 8 9 CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC B1 B1 B1 B1 SC SC SC SC POP 12HR 30 20 20 30 30 QPF 12HR 0.13 0.06 0.06 0.18 0.07 RAIN SHWRS C S S S S S S S S S S S S C C C C S S S S TSTMS S S S S S HEAT INDEX 93 99 99 96 91 85 93100 99 96 91 85 93 99 98 MAX HEAT 93 99 98 90 93 100 98 90 93 99 DATE MON 09/08/25 TUE 09/09/25 WED 09/10/25 THU 09/11/25 CHST6HRLY 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MIN/MAX 78 87 78 87 78 87 78 88 TEMP 82 78 83 86 82 78 83 86 82 78 83 86 82 79 84 88 DEWPT 78 78 78 78 78 78 78 78 79 78 78 79 79 79 79 79 PWIND DIR E E E E E E E E WIND CHAR GN LT LT GN GN GN GN GN AVG CLOUDS SC SC SC SC B1 B1 B1 B1 SC SC SC SC B1 B1 B1 B1 POP 12HR 20 20 20 20 20 20 20 20 RAIN SHWRS S S S S S S S S S S S S S S S S $$