Point Forecast Matrices
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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709 FOMY50 PGUM 021810 PFMGUM POINT FORECAST MATRICES NATIONAL WEATHER SERVICE TIYAN GU 403 AM CHST WED DEC 3 2025 GUZ001-030600- GUAM INTERNATIONAL AIRPORT-TIYAN GU 13.48N 144.79E ELEV. 248 FT 403 AM CHST WED DEC 3 2025 DATE WED 12/03/25 THU 12/04/25 FRI 12/05/25 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 85 TEMP 79 84 87 86 85 82 80 79 79 84 87 86 85 83 81 79 80 83 85 85 DEWPT 75 75 74 74 75 75 75 76 76 76 76 76 77 77 77 77 77 77 77 77 RH 88 74 65 68 72 79 85 91 91 77 70 72 77 82 88 94 91 82 77 77 WIND DIR E E E E E E E E E SE E SE SE SE SE SE E E E E WIND SPD 13 17 17 16 14 12 11 9 11 12 12 13 13 10 8 6 11 13 12 12 CLOUDS SC SC SC SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 20 20 20 30 40 QPF 12HR 0.05 0.10 0.12 0.30 0.38 RAIN SHWRS 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 HEAT INDEX 84 91 95 94 92 89 86 84 92 97 97 95 91 88 84 85 91 95 95 MAX HEAT 91 95 94 88 92 97 96 90 91 95 HIGH SURF Y Y Y DATE SAT 12/06/25 SUN 12/07/25 MON 12/08/25 TUE 12/09/25 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 88 77 88 78 89 78 89 TEMP 82 80 84 87 82 77 83 87 82 78 84 88 83 78 84 88 DEWPT 78 77 77 76 77 77 77 77 77 77 76 76 76 76 75 76 PWIND DIR E E E E E E E E WIND CHAR GN GN GN GN GN GN GN GN AVG CLOUDS B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 40 20 20 20 20 20 20 20 RAIN SHWRS C S S S S S S S S S S S S S S S $$ MPZ001-030600- ROTA INTERNATIONAL AIRPORT-SINAPALU MP 14.17N 145.23E ELEV. 592 FT 403 AM CHST WED DEC 3 2025 DATE WED 12/03/25 THU 12/04/25 FRI 12/05/25 CHST3HRLY 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MAX/MIN 85 79 85 79 85 TEMP 79 83 85 85 83 82 80 79 79 83 85 85 84 82 80 79 80 83 85 84 DEWPT 74 74 74 74 74 75 75 75 75 76 76 76 76 77 77 77 77 77 77 77 RH 85 74 70 70 74 79 85 88 88 80 75 75 77 85 91 94 91 82 77 80 WIND DIR E E E SE E E E E E SE E SE SE SE SE SE E E E E WIND SPD 16 18 18 17 17 13 13 10 12 14 13 14 13 12 10 8 11 13 12 12 CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 20 20 20 30 30 QPF 12HR 0.01 0.03 0.07 0.24 0.34 RAIN SHWRS S S S S S S S S S S S S C C C C C C C C HEAT INDEX 83 89 93 92 91 88 85 83 90 95 94 92 90 87 84 85 91 95 94 MAX HEAT 89 93 92 87 90 95 94 89 91 95 HIGH SURF Y Y Y DATE SAT 12/06/25 SUN 12/07/25 MON 12/08/25 TUE 12/09/25 CHST6HRLY 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MIN/MAX 79 87 77 87 78 87 78 87 TEMP 82 80 84 86 82 78 83 86 82 78 83 86 82 78 84 87 DEWPT 77 77 77 77 77 77 77 77 77 77 76 76 76 75 75 75 PWIND DIR E E E E E E E E WIND CHAR GN GN GN GN GN GN GN GN AVG CLOUDS B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 30 20 20 20 20 20 20 20 RAIN SHWRS C S S S S S S S S S S S S S S S $$ MPZ002-030600- TINIAN-SAN JOSE MP 14.97N 145.63E ELEV. 74 FT 403 AM CHST WED DEC 3 2025 DATE WED 12/03/25 THU 12/04/25 FRI 12/05/25 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 77 88 79 86 TEMP 78 83 88 87 85 82 79 78 78 83 88 87 85 83 81 80 80 83 86 85 DEWPT 73 73 74 75 75 75 75 74 75 75 76 76 76 76 76 76 76 76 76 76 RH 85 72 63 68 72 79 88 88 91 77 68 70 75 80 85 88 88 80 72 75 WIND DIR E E SE SE SE E SE SE SE SE SE SE SE SE SE SE E E E E WIND SPD 16 18 16 16 16 14 13 10 11 13 11 16 13 10 10 9 11 12 12 12 CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 20 20 20 20 30 QPF 12HR 0.04 0.01 0.03 0.14 0.26 RAIN SHWRS S S S S S S S S S S S S S S S S C C C C HEAT INDEX 90 96 96 93 89 83 91 98 97 95 91 87 84 85 91 96 95 MAX HEAT 90 96 95 87 91 98 97 90 91 96 HIGH SURF Y Y Y DATE SAT 12/06/25 SUN 12/07/25 MON 12/08/25 TUE 12/09/25 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 89 76 89 76 89 76 89 TEMP 82 80 85 88 82 77 84 88 82 77 84 88 82 77 84 88 DEWPT 77 77 76 76 77 77 76 76 77 77 76 75 75 75 75 75 PWIND DIR SE SE E E E E E E WIND CHAR GN GN GN GN GN GN GN GN AVG CLOUDS B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 30 20 20 20 20 20 20 10 RAIN SHWRS C S S S S S S S S S S S S S S S $$ MPZ003-030600- SAIPAN INTERNATIONAL AIRPORT-OBYAN MP 15.11N 145.72E ELEV. 215 FT 403 AM CHST WED DEC 3 2025 DATE WED 12/03/25 THU 12/04/25 FRI 12/05/25 CHST3HRLY 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MAX/MIN 88 77 88 79 86 TEMP 78 83 88 87 85 82 79 78 78 83 88 87 85 83 81 80 80 83 86 85 DEWPT 74 74 74 74 75 75 75 74 75 75 75 76 76 76 76 76 76 76 76 76 RH 88 74 63 65 72 79 88 88 91 77 66 70 75 80 85 88 88 80 72 75 WIND DIR E SE SE E SE E SE SE SE SE SE SE SE SE SE SE E E E E WIND SPD 16 18 16 16 16 13 12 10 11 13 11 14 12 9 10 9 11 12 12 12 CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 20 20 20 20 30 QPF 12HR 0.04 0.01 0.02 0.13 0.25 RAIN SHWRS S S S S S S S S S S S S S S S S C C C C HEAT INDEX 90 96 96 93 88 83 91 97 97 95 91 87 84 85 91 96 95 MAX HEAT 90 96 95 86 91 98 97 90 91 96 HIGH SURF Y Y Y DATE SAT 12/06/25 SUN 12/07/25 MON 12/08/25 TUE 12/09/25 CHST6HRLY 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MIN/MAX 79 89 76 89 76 89 76 89 TEMP 82 80 85 88 82 77 84 88 82 77 84 88 82 77 84 88 DEWPT 77 76 76 76 77 77 76 76 77 77 76 75 75 75 75 75 PWIND DIR SE SE E E E E E E WIND CHAR GN GN GN GN GN GN GN GN AVG CLOUDS B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 30 20 20 20 20 20 20 10 RAIN SHWRS C S S S S S S S S S S S S S S S $$