Point Forecast Matrices
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
481 FOMY50 PGUM 040510 PFMGUM POINT FORECAST MATRICES NATIONAL WEATHER SERVICE TIYAN GU 301 PM CHST SAT OCT 4 2025 GUZ001-041800- GUAM INTERNATIONAL AIRPORT-TIYAN GU 13.48N 144.79E ELEV. 248 FT 301 PM CHST SAT OCT 4 2025 DATE SAT 10/04/25 SUN 10/05/25 MON 10/06/25 TUE 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 87 76 87 76 TEMP 86 84 81 78 77 77 83 87 86 84 81 78 77 77 83 87 86 84 81 78 77 DEWPT 77 76 76 76 76 76 76 76 76 76 76 76 76 76 76 76 76 77 77 77 77 RH 75 77 85 94 97 97 80 70 72 77 85 94 97 97 80 70 72 80 88 97100 WIND DIR SW SW SW SW W W W W W S E SE SE E SE SE E E E E E WIND SPD 5 4 3 2 2 1 2 3 2 1 2 2 1 2 3 3 3 5 4 4 4 CLOUDS SC SC SC SC SC B1 B1 B1 B1 SC SC SC SC B1 B1 B1 B1 B2 B2 B2 B2 POP 12HR 20 20 20 40 50 QPF 12HR 0.09 0.15 0.10 0.07 0.32 RAIN SHWRS S S S S S S S S S S S S 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 S S S S S S HEAT INDEX 97 93 88 91 97 96 93 88 91 97 97 94 88 MAX HEAT 98 96 86 91 97 95 86 91 97 96 87 DATE 10/07/25 WED 10/08/25 THU 10/09/25 FRI 10/10/25 SAT 10/11/25 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 76 88 76 88 80 87 80 87 TEMP 83 86 81 77 83 87 82 77 83 87 84 80 84 86 83 80 84 86 DEWPT 77 77 78 78 77 77 78 78 78 78 78 78 78 77 78 78 78 77 PWIND DIR SE S SE E E NE NE NE E WIND CHAR LT GN GN LT LT LT LT LT LT AVG CLOUDS B2 B2 B2 B1 B1 B1 SC SC SC SC B1 B1 B1 B1 SC SC SC SC POP 12HR 50 50 40 20 20 20 20 20 20 RAIN SHWRS C C C C C 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 $$ MPZ001-041800- ROTA INTERNATIONAL AIRPORT-SINAPALU MP 14.17N 145.23E ELEV. 592 FT 301 PM CHST SAT OCT 4 2025 DATE SAT 10/04/25 SUN 10/05/25 MON 10/06/25 TUE CHST3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MIN/MAX 75 86 75 86 75 TEMP 85 83 80 77 76 76 82 86 85 83 80 77 76 76 82 86 85 83 80 77 76 DEWPT 76 76 76 76 76 76 76 76 76 76 76 76 76 76 76 77 77 77 77 77 77 RH 75 80 88 97100100 82 72 75 80 88 97100100 82 75 77 82 91100103 WIND DIR SW SW SW SW W SW SW W N E E SE SE SE SE SE E E E E E WIND SPD 4 4 3 2 2 1 1 1 1 2 3 5 3 3 5 5 5 8 8 8 8 CLOUDS SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 POP 12HR 20 20 20 30 50 QPF 12HR 0.08 0.09 0.13 0.11 0.39 RAIN SHWRS S S S S S S S S S S S S S C C C C C C C C TSTMS S S S S S S S S S S S S S S S S HEAT INDEX 95 91 86 88 96 94 91 86 89 96 95 92 87 MAX HEAT 96 94 88 96 93 89 96 95 DATE 10/07/25 WED 10/08/25 THU 10/09/25 FRI 10/10/25 SAT 10/11/25 CHST6HRLY 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MAX/MIN 86 75 87 75 87 81 86 81 86 TEMP 82 85 80 76 82 86 81 76 82 86 84 81 84 85 83 81 84 85 DEWPT 77 77 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 PWIND DIR SE SE SE E E NE NE NE E WIND CHAR GN GN GN LT LT LT LT LT LT AVG CLOUDS B2 B1 B1 B1 B1 SC SC SC SC SC B1 B1 B1 SC SC SC SC SC POP 12HR 50 40 40 20 20 20 20 20 20 RAIN SHWRS C C C C C S S S S S S S S S S S S S TSTMS S S S S S S S S S S S S S $$ MPZ002-041800- TINIAN-SAN JOSE MP 14.97N 145.63E ELEV. 74 FT 301 PM CHST SAT OCT 4 2025 DATE SAT 10/04/25 SUN 10/05/25 MON 10/06/25 TUE 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 86 78 88 78 TEMP 86 84 82 80 78 79 83 86 86 84 82 80 78 79 84 88 87 85 83 80 79 DEWPT 76 76 76 76 76 76 76 76 76 76 76 76 76 77 77 77 77 77 78 78 78 RH 72 77 82 88 94 91 80 72 72 77 82 88 94 94 80 70 72 77 85 94 97 WIND DIR S S S SW W SW SE W E E SE SE SE SE SE SE SE E E E E WIND SPD 3 4 4 2 2 1 1 0 2 5 6 5 4 5 8 8 8 10 10 10 10 CLOUDS SC B1 B1 B1 B1 SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 POP 12HR 20 20 30 30 40 QPF 12HR 0.14 0.05 0.14 0.09 0.32 RAIN SHWRS S 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 HEAT INDEX 96 93 89 85 91 96 95 93 89 85 93 99 99 96 92 87 MAX HEAT 96 95 88 91 96 95 88 93 99 98 90 DATE 10/07/25 WED 10/08/25 THU 10/09/25 FRI 10/10/25 SAT 10/11/25 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 78 88 78 88 79 88 79 88 TEMP 84 87 83 79 84 87 83 79 84 87 83 80 84 87 83 80 84 87 DEWPT 77 77 78 78 78 78 78 78 78 78 78 78 78 78 78 78 77 77 PWIND DIR SE SE SE E E NE NE NE E WIND CHAR GN GN GN LT LT LT LT LT LT AVG CLOUDS B1 B1 B1 B1 B1 SC SC SC SC SC SC B1 SC SC SC SC SC SC POP 12HR 40 30 30 20 20 20 20 20 20 RAIN SHWRS C C C C C 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 $$ MPZ003-041800- SAIPAN INTERNATIONAL AIRPORT-OBYAN MP 15.11N 145.72E ELEV. 215 FT 301 PM CHST SAT OCT 4 2025 DATE SAT 10/04/25 SUN 10/05/25 MON 10/06/25 TUE CHST3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MIN/MAX 78 88 78 88 78 TEMP 87 85 82 80 78 79 84 88 87 85 82 80 78 79 84 88 87 85 82 80 78 DEWPT 76 76 76 76 76 76 76 76 76 76 76 76 76 77 77 77 77 77 78 78 78 RH 70 75 82 88 94 91 77 68 70 75 82 88 94 94 80 70 72 77 88 94100 WIND DIR S S S SW SW SW SE S E E SE SE SE SE SE SE SE E E E E WIND SPD 3 4 4 2 2 0 1 0 2 5 6 5 4 5 9 9 9 10 10 11 10 CLOUDS SC B1 B1 B1 B1 SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 30 30 30 30 40 QPF 12HR 0.15 0.05 0.16 0.10 0.30 RAIN SHWRS S C C C C S S S S C C C C C C C C C C C C TSTMS S S S S S S S S S S S S HEAT INDEX 98 95 90 85 93 99 98 95 90 85 93100 99 96 92 86 MAX HEAT 99 97 89 93 99 97 89 93 100 98 90 DATE 10/07/25 WED 10/08/25 THU 10/09/25 FRI 10/10/25 SAT 10/11/25 CHST6HRLY 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MAX/MIN 88 78 88 78 88 79 88 79 88 TEMP 84 87 82 78 84 87 82 78 84 87 83 80 84 87 83 80 84 87 DEWPT 77 77 78 78 78 78 78 78 78 78 78 78 78 78 78 78 77 77 PWIND DIR SE SE SE E E NE NE NE E WIND CHAR GN GN GN LT GN LT LT LT LT AVG CLOUDS B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 40 30 30 20 20 20 20 20 20 RAIN SHWRS C C C C C S S S S S S S S S S S S S TSTMS S S S S S S S S S $$