Point Forecast Matrices
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
790 FOMY50 PGUM 051810 PFMGUM POINT FORECAST MATRICES NATIONAL WEATHER SERVICE TIYAN GU 401 AM CHST MON OCT 6 2025 GUZ001-060600- GUAM INTERNATIONAL AIRPORT-TIYAN GU 13.48N 144.79E ELEV. 248 FT 401 AM CHST MON OCT 6 2025 DATE MON 10/06/25 TUE 10/07/25 WED 10/08/25 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 76 86 76 88 TEMP 77 83 87 86 84 81 78 77 77 82 86 85 83 81 78 77 77 83 88 87 DEWPT 75 75 75 75 76 76 76 76 76 76 76 76 77 77 77 77 76 76 76 76 RH 94 77 68 70 77 85 94 97 97 82 72 75 82 88 97100 97 80 68 70 WIND DIR S SE SW W N NE NE NE NW SW S S S S S S S S S S WIND SPD 3 4 3 2 1 1 1 1 1 3 6 11 11 10 8 5 6 9 8 5 CLOUDS SC SC B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 POP 12HR 30 40 60 60 50 QPF 12HR 0.35 0.25 0.44 0.46 0.19 RAIN SHWRS S S C C C C C C L L L L 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 HEAT INDEX 90 96 95 92 88 89 96 95 92 87 92 99 98 MAX HEAT 90 96 95 86 89 96 94 85 92 99 DATE THU 10/09/25 FRI 10/10/25 SAT 10/11/25 SUN 10/12/25 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 88 76 87 76 89 76 89 TEMP 82 77 83 87 82 77 83 86 81 77 84 88 82 77 84 88 DEWPT 77 77 77 77 77 77 77 76 77 76 76 76 77 76 77 76 PWIND DIR SE NE NE NE NE E E E WIND CHAR LT LT LT LT LT LT LT LT AVG CLOUDS SC SC SC SC B1 B1 B1 B1 SC SC SC SC SC SC SC SC POP 12HR 20 20 30 30 30 20 20 20 RAIN SHWRS S S S S C C C C C S S S S S S S TSTMS S S S S $$ MPZ001-060600- ROTA INTERNATIONAL AIRPORT-SINAPALU MP 14.17N 145.23E ELEV. 592 FT 401 AM CHST MON OCT 6 2025 DATE MON 10/06/25 TUE 10/07/25 WED 10/08/25 CHST3HRLY 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MAX/MIN 86 75 85 75 87 TEMP 76 82 86 85 83 80 77 76 76 81 85 84 82 80 77 76 76 82 87 86 DEWPT 75 75 75 75 75 76 76 76 76 76 76 76 76 76 76 76 76 76 76 76 RH 97 79 70 72 77 88 97100100 85 75 77 82 88 97100100 82 70 72 WIND DIR S SE SE SE E E E E E SE SE SE S S S S S S S SE WIND SPD 4 5 5 4 4 5 6 10 14 18 19 18 16 13 11 9 10 10 9 6 CLOUDS SC SC B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 SC SC SC SC POP 12HR 30 40 60 60 50 QPF 12HR 0.11 0.26 0.45 0.50 0.17 RAIN SHWRS S S C C C C C C L L L L C C C C S S S S TSTMS S S S S S S S S S S S S S S S S HEAT INDEX 88 94 94 90 85 87 94 93 90 84 89 97 96 MAX HEAT 88 94 93 87 94 92 89 97 DATE THU 10/09/25 FRI 10/10/25 SAT 10/11/25 SUN 10/12/25 CHST6HRLY 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MIN/MAX 75 87 75 86 75 88 75 88 TEMP 81 76 82 86 81 76 81 85 80 76 83 87 81 76 83 87 DEWPT 77 76 76 76 77 76 76 76 76 76 76 76 76 76 76 76 PWIND DIR E NE NE NE E E E E WIND CHAR LT LT LT LT LT LT GN GN AVG CLOUDS SC SC SC SC B1 B1 B1 B1 SC SC SC SC SC SC SC SC POP 12HR 20 20 30 30 30 20 20 20 RAIN SHWRS S S S S C C C C C S S S S S S S TSTMS S S S S $$ MPZ002-060600- TINIAN-SAN JOSE MP 14.97N 145.63E ELEV. 74 FT 401 AM CHST MON OCT 6 2025 DATE MON 10/06/25 TUE 10/07/25 WED 10/08/25 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 78 87 78 88 TEMP 79 84 88 87 85 83 80 79 79 83 87 86 84 82 80 79 79 84 88 87 DEWPT 76 76 76 76 76 77 76 76 77 77 77 77 77 77 76 76 77 77 77 77 RH 91 77 68 70 75 82 88 91 94 82 72 75 80 85 88 91 94 80 70 72 WIND DIR SE SE SE SE SE SE E E E SE SE SE SE SE S S S S S S WIND SPD 5 8 6 6 8 10 11 12 17 20 20 19 18 17 12 8 9 10 9 6 CLOUDS SC SC SC SC B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 POP 12HR 30 40 50 50 50 QPF 12HR 0.09 0.25 0.45 0.34 0.19 RAIN SHWRS S S S S 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 HEAT INDEX 93 99 98 95 91 86 93 98 97 94 90 85 94100 99 MAX HEAT 93 99 97 89 93 98 96 88 94 100 DATE THU 10/09/25 FRI 10/10/25 SAT 10/11/25 SUN 10/12/25 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 88 78 88 78 90 78 90 TEMP 83 79 84 87 83 79 84 87 83 79 85 89 83 79 85 89 DEWPT 77 77 77 77 77 77 77 77 77 76 77 76 77 76 77 77 PWIND DIR E NE NE NE E E E E WIND CHAR LT LT LT GN LT LT LT GN AVG CLOUDS SC SC SC SC B1 B1 B1 B1 B1 SC SC SC SC SC SC SC POP 12HR 20 20 30 30 30 20 20 20 RAIN SHWRS S S S S C C C C C S S S S S S S TSTMS S S S S $$ MPZ003-060600- SAIPAN INTERNATIONAL AIRPORT-OBYAN MP 15.11N 145.72E ELEV. 215 FT 401 AM CHST MON OCT 6 2025 DATE MON 10/06/25 TUE 10/07/25 WED 10/08/25 CHST3HRLY 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MAX/MIN 88 78 87 78 88 TEMP 79 84 88 87 85 82 80 78 79 83 87 86 84 82 80 78 79 84 88 87 DEWPT 76 77 77 76 77 77 77 77 77 77 77 77 77 77 77 77 77 77 77 77 RH 91 80 70 70 77 85 91 97 94 82 72 75 80 85 91 97 94 80 70 72 WIND DIR SE SE SE SE SE SE SE E E SE SE SE SE SE S S S S S S WIND SPD 6 8 9 9 9 9 10 12 17 20 20 19 18 17 12 9 9 11 9 8 CLOUDS SC SC B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 POP 12HR 30 40 50 50 50 QPF 12HR 0.08 0.26 0.45 0.33 0.19 RAIN SHWRS S S C C C C C C C C C C C C C C S S S S TSTMS S S S S S S S S S S S S S S S S HEAT INDEX 93 99 98 95 91 85 93 99 98 95 90 85 94100 99 MAX HEAT 93 99 97 89 93 99 97 88 94 100 DATE THU 10/09/25 FRI 10/10/25 SAT 10/11/25 SUN 10/12/25 CHST6HRLY 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MIN/MAX 78 88 78 88 78 90 78 90 TEMP 82 78 84 87 82 78 84 87 82 78 85 89 83 78 85 89 DEWPT 77 77 78 78 78 77 78 77 77 77 77 77 77 77 77 77 PWIND DIR E NE NE NE E E E E WIND CHAR LT LT LT GN LT LT LT GN AVG CLOUDS SC SC SC SC B1 B1 B1 B1 B1 SC SC SC SC SC SC SC POP 12HR 20 20 30 30 30 20 20 20 RAIN SHWRS S S S S C C C C C S S S S S S S TSTMS S S S S $$