Point Forecast Matrices
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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676 FOMY50 PGUM 020520 PFMGUM POINT FORECAST MATRICES NATIONAL WEATHER SERVICE TIYAN GU 311 PM CHST TUE DEC 2 2025 GUZ001-021800- GUAM INTERNATIONAL AIRPORT-TIYAN GU 13.48N 144.79E ELEV. 248 FT 311 PM CHST TUE DEC 2 2025 DATE TUE 12/02/25 WED 12/03/25 THU 12/04/25 FRI 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 85 79 TEMP 85 84 82 80 79 79 84 87 86 85 82 80 79 79 83 85 85 84 82 80 79 DEWPT 78 75 75 75 75 76 75 75 75 76 76 76 76 76 76 76 76 77 77 77 77 RH 80 74 79 85 88 91 74 68 70 75 82 88 91 91 80 75 75 80 85 91 94 WIND DIR E E E E E E E E E E E E E SE SE SE SE SE SE SE SE WIND SPD 14 16 13 10 8 12 17 16 13 14 12 11 10 12 12 10 13 13 10 8 6 CLOUDS B1 SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 20 20 20 20 30 QPF 12HR 0.04 0.11 0.19 0.13 0.30 RAIN SHWRS S S S S S S S S S S S S S S S S S C C C C TSTMS S S S S HEAT INDEX 96 92 88 85 84 91 96 95 93 90 86 84 90 95 94 93 90 87 84 MAX HEAT 97 96 87 91 96 95 89 90 95 94 89 HIGH SURF Y Y Y Y Y Y Y Y DATE 12/05/25 SAT 12/06/25 SUN 12/07/25 MON 12/08/25 TUE 12/09/25 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 88 77 88 78 89 78 89 TEMP 83 86 83 80 84 87 82 77 83 87 82 78 84 88 83 78 84 88 DEWPT 77 77 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 E WIND CHAR GN GN GN GN GN GN GN GN GN AVG CLOUDS B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 40 40 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 $$ MPZ001-021800- ROTA INTERNATIONAL AIRPORT-SINAPALU MP 14.17N 145.23E ELEV. 592 FT 311 PM CHST TUE DEC 2 2025 DATE TUE 12/02/25 WED 12/03/25 THU 12/04/25 FRI CHST3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MIN/MAX 79 85 79 85 79 TEMP 84 83 82 80 79 79 83 85 85 83 82 80 79 79 82 85 84 83 82 80 79 DEWPT 78 75 75 75 74 75 75 75 75 75 75 75 75 75 76 76 76 76 77 77 77 RH 82 77 79 85 85 88 77 72 72 77 79 85 88 88 82 75 77 80 85 91 94 WIND DIR E SE SE E E E E E SE E E E E SE SE SE SE SE SE SE SE WIND SPD 17 17 16 12 10 14 18 17 14 16 14 13 10 11 14 13 14 13 12 10 8 CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 POP 12HR 20 20 20 20 30 QPF 12HR 0.03 0.01 0.07 0.08 0.24 RAIN SHWRS S S S S S S S S S S S S S S S S S C C C C HEAT INDEX 95 91 88 85 83 90 93 93 91 88 85 83 90 94 94 92 89 87 84 MAX HEAT 96 95 87 90 93 92 87 90 94 93 88 HIGH SURF Y Y Y Y Y Y Y Y DATE 12/05/25 SAT 12/06/25 SUN 12/07/25 MON 12/08/25 TUE 12/09/25 CHST6HRLY 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MAX/MIN 85 79 87 77 87 78 87 78 87 TEMP 83 85 82 80 84 86 82 78 83 86 82 78 83 86 82 78 84 87 DEWPT 77 77 77 77 77 77 77 77 77 77 77 77 76 76 76 75 75 75 PWIND DIR E E E E E E E E E WIND CHAR GN GN GN GN GN GN GN GN GN AVG CLOUDS B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 30 30 20 20 20 20 20 20 20 RAIN SHWRS C C C S S S S S S S S S S S S S S S $$ MPZ002-021800- TINIAN-SAN JOSE MP 14.97N 145.63E ELEV. 74 FT 311 PM CHST TUE DEC 2 2025 DATE TUE 12/02/25 WED 12/03/25 THU 12/04/25 FRI 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 77 88 77 86 79 TEMP 86 84 82 79 78 78 83 88 87 85 82 79 78 78 82 86 85 84 82 81 79 DEWPT 78 76 76 75 74 74 74 74 74 75 75 75 75 75 75 75 75 76 76 76 76 RH 77 77 82 88 88 88 74 63 65 72 79 88 91 91 79 70 72 77 82 85 91 WIND DIR E SE SE SE SE E E SE E SE E E E SE E E SE SE SE SE SE WIND SPD 17 16 14 12 10 14 18 14 13 17 14 12 10 11 13 12 16 13 10 10 9 CLOUDS SC B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 POP 12HR 20 20 10 20 20 QPF 12HR 0.16 0.04 0.02 0.03 0.14 RAIN SHWRS S S S S S S S S S S S S S S S S S S S S S HEAT INDEX 98 93 88 83 90 96 95 93 89 83 89 94 94 92 90 87 84 MAX HEAT 98 97 87 90 96 95 87 89 94 94 89 HIGH SURF Y Y Y Y Y Y Y Y DATE 12/05/25 SAT 12/06/25 SUN 12/07/25 MON 12/08/25 TUE 12/09/25 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 89 76 89 76 89 76 89 TEMP 84 86 83 80 85 88 82 77 84 88 82 77 84 88 82 77 84 88 DEWPT 76 76 77 77 76 76 77 77 76 76 77 77 76 75 75 75 75 75 PWIND DIR E SE SE E E E E E E WIND CHAR GN GN GN GN GN GN GN GN GN AVG CLOUDS B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 30 30 20 20 20 20 20 20 10 RAIN SHWRS C C C S S S S S S S S S S S S S S S $$ MPZ003-021800- SAIPAN INTERNATIONAL AIRPORT-OBYAN MP 15.11N 145.72E ELEV. 215 FT 311 PM CHST TUE DEC 2 2025 DATE TUE 12/02/25 WED 12/03/25 THU 12/04/25 FRI CHST3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MIN/MAX 77 88 77 86 79 TEMP 86 84 82 79 78 78 83 88 87 85 82 79 78 78 82 86 85 84 82 81 79 DEWPT 78 76 76 76 75 74 74 74 74 75 75 75 75 75 75 75 75 76 76 76 76 RH 77 77 82 91 91 88 74 63 65 72 79 88 91 91 79 70 72 77 82 85 91 WIND DIR E SE SE SE SE E E SE E E E E E SE SE E SE SE SE SE SE WIND SPD 14 16 14 12 10 14 18 14 14 16 13 12 10 11 13 12 14 12 9 10 9 CLOUDS SC B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 POP 12HR 20 20 10 10 20 QPF 12HR 0.17 0.05 0.02 0.02 0.13 RAIN SHWRS S S S S S S S S S S S S S S S S S S S S S HEAT INDEX 98 93 88 90 96 95 93 88 83 89 94 94 92 90 87 84 MAX HEAT 99 97 87 90 96 95 87 89 94 94 89 HIGH SURF Y Y Y Y Y Y Y Y DATE 12/05/25 SAT 12/06/25 SUN 12/07/25 MON 12/08/25 TUE 12/09/25 CHST6HRLY 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MAX/MIN 87 79 89 76 89 76 89 76 89 TEMP 84 86 83 80 85 88 82 77 84 88 82 77 84 88 82 77 84 88 DEWPT 76 76 77 76 76 76 77 77 76 76 77 77 76 75 75 75 75 75 PWIND DIR E SE SE E E E E E E WIND CHAR GN GN GN GN GN GN GN GN GN AVG CLOUDS B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 30 30 20 20 20 20 20 20 10 RAIN SHWRS C C C S S S S S S S S S S S S S S S $$