Point Forecast Matrices
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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587 FOMY50 PGUM 070630 PFMGUM POINT FORECAST MATRICES NATIONAL WEATHER SERVICE TIYAN GU 421 PM CHST SUN DEC 7 2025 GUZ001-071800- GUAM INTERNATIONAL AIRPORT-TIYAN GU 13.48N 144.79E ELEV. 248 FT 421 PM CHST SUN DEC 7 2025 DATE SUN 12/07/25 MON 12/08/25 TUE 12/09/25 WED 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 77 88 77 TEMP 85 82 80 78 79 84 87 87 85 82 79 77 78 83 87 87 85 82 79 78 DEWPT 76 77 77 77 77 77 76 76 76 76 76 76 75 75 76 76 76 76 76 76 RH 75 85 91 97 94 80 70 70 75 82 91 97 91 77 70 70 75 82 91 94 WIND DIR NE NE NE NE NE NE E E E E E E E E E E E E E E WIND SPD 9 8 8 5 8 10 10 9 9 8 8 6 8 10 10 10 10 8 8 6 CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC B1 B1 B1 B1 POP 12HR 30 30 20 20 20 QPF 12HR 0.10 0.02 0 0.02 0.19 RAIN SHWRS C C C C S S S S S S S S S S S S S S S S HEAT INDEX 95 91 85 92 98 97 94 89 83 91 98 97 94 90 84 MAX HEAT 97 97 89 92 98 96 87 91 98 96 88 HIGH SURF Y Y Y DATE 12/10/25 THU 12/11/25 FRI 12/12/25 SAT 12/13/25 SUN 12/14/25 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 77 88 78 87 78 87 78 87 TEMP 83 87 82 78 83 87 82 78 83 87 82 78 83 86 82 78 84 87 DEWPT 76 76 77 76 76 76 77 77 77 77 78 77 77 77 77 77 77 77 PWIND DIR E E E E NE NE E E E WIND CHAR GN BZ GN BZ BZ BZ BZ BZ BZ AVG CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 20 10 10 10 20 20 20 20 20 RAIN SHWRS S S S S S S S S S S S S S S S S S S $$ MPZ001-071800- ROTA INTERNATIONAL AIRPORT-SINAPALU MP 14.17N 145.23E ELEV. 592 FT 421 PM CHST SUN DEC 7 2025 DATE SUN 12/07/25 MON 12/08/25 TUE 12/09/25 WED CHST3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MIN/MAX 76 86 76 86 76 TEMP 83 81 78 77 77 82 86 85 83 81 78 77 77 82 86 85 83 81 78 77 DEWPT 77 77 77 77 77 77 76 76 76 76 76 76 76 76 75 75 76 76 76 76 RH 82 88 97100100 85 72 75 80 85 94 97 97 82 70 72 80 85 94 97 WIND DIR NE NE NE NE NE E E E E E E E E E E E E E NE NE WIND SPD 10 10 10 9 10 11 11 10 11 9 9 6 9 12 11 11 11 10 11 10 CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 30 30 20 20 20 QPF 12HR 0.08 0.06 0.01 0.01 0.14 RAIN SHWRS C C C C S S S S S S S S S S S S S S S S HEAT INDEX 92 87 90 96 95 92 86 89 95 94 92 87 MAX HEAT 94 93 85 90 96 94 85 89 95 93 85 HIGH SURF Y Y Y DATE 12/10/25 THU 12/11/25 FRI 12/12/25 SAT 12/13/25 SUN 12/14/25 CHST6HRLY 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MAX/MIN 86 76 86 76 86 76 86 76 86 TEMP 82 85 81 77 82 85 81 77 82 85 81 77 82 85 81 77 82 85 DEWPT 76 76 76 76 76 76 76 76 77 77 77 77 77 77 77 77 77 77 PWIND DIR E E E E NE NE E E E WIND CHAR GN BZ BZ BZ BZ BZ BZ BZ BZ AVG CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 20 10 10 10 20 20 20 20 20 RAIN SHWRS S S S S S S S S S S S S S S S S S S $$ MPZ002-071800- TINIAN-SAN JOSE MP 14.97N 145.63E ELEV. 74 FT 421 PM CHST SUN DEC 7 2025 DATE SUN 12/07/25 MON 12/08/25 TUE 12/09/25 WED 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 87 78 87 78 TEMP 85 82 80 79 79 83 87 86 84 82 80 79 79 83 87 86 84 82 80 79 DEWPT 77 77 77 77 77 77 76 76 76 76 76 76 75 75 75 75 76 76 75 76 RH 77 85 91 94 94 82 70 72 77 82 88 91 88 77 68 70 77 82 85 91 WIND DIR NE NE NE NE NE E E E E E E E E E E E E E NE E WIND SPD 11 10 9 8 11 12 10 9 10 10 9 6 10 12 10 10 11 10 10 9 CLOUDS B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 30 30 20 20 20 QPF 12HR 0 0.02 0 0.01 0 RAIN SHWRS C C C C S S S S S S S S S S S S S S S S HEAT INDEX 95 90 86 92 97 96 93 89 85 91 96 96 94 89 85 MAX HEAT 96 96 89 92 97 95 88 91 96 95 88 HIGH SURF Y Y Y DATE 12/10/25 THU 12/11/25 FRI 12/12/25 SAT 12/13/25 SUN 12/14/25 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 78 86 78 87 78 86 78 87 TEMP 83 85 82 78 83 85 82 78 83 86 82 79 83 86 82 78 83 86 DEWPT 75 75 76 76 76 76 76 76 76 76 77 77 77 77 77 77 76 76 PWIND DIR E E E E NE NE E E E WIND CHAR GN BZ BZ BZ BZ BZ BZ BZ BZ AVG CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 POP 12HR 20 10 10 10 20 20 20 20 20 RAIN SHWRS S S S S S S S S S S S S S S S S S S $$ MPZ003-071800- SAIPAN INTERNATIONAL AIRPORT-OBYAN MP 15.11N 145.72E ELEV. 215 FT 421 PM CHST SUN DEC 7 2025 DATE SUN 12/07/25 MON 12/08/25 TUE 12/09/25 WED CHST3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MIN/MAX 78 88 78 88 77 TEMP 85 82 80 78 79 84 87 87 85 82 80 78 79 84 88 87 85 82 79 78 DEWPT 77 77 77 77 77 77 76 76 76 76 76 75 75 75 75 75 76 76 75 76 RH 77 85 91 97 94 80 70 70 75 82 88 91 88 74 66 68 75 82 88 94 WIND DIR NE NE NE NE NE E E E E E E E E E E E E E NE E WIND SPD 10 9 9 8 10 11 10 9 9 10 8 6 10 11 10 10 11 10 10 9 CLOUDS B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 30 30 20 20 20 QPF 12HR 0 0 0 0.02 0 RAIN SHWRS C C C C S S S S S S S S S S S S S S S S HEAT INDEX 95 91 85 93 98 97 94 89 84 92 98 97 94 89 84 MAX HEAT 97 97 89 93 98 96 88 92 98 96 87 HIGH SURF Y Y Y DATE 12/10/25 THU 12/11/25 FRI 12/12/25 SAT 12/13/25 SUN 12/14/25 CHST6HRLY 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MAX/MIN 87 77 88 78 87 77 87 77 87 TEMP 83 87 82 78 83 87 82 78 83 86 82 78 83 86 82 78 83 86 DEWPT 75 75 76 76 76 76 76 76 76 77 77 77 77 77 77 77 76 76 PWIND DIR E E E E NE NE E E E WIND CHAR GN BZ BZ BZ BZ BZ BZ BZ BZ AVG CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 POP 12HR 20 10 10 10 20 20 20 20 20 RAIN SHWRS S S S S S S S S S S S S S S S S S S $$