Point Forecast Matrices
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
178 FOMY50 PGUM 111050 PFMGUM POINT FORECAST MATRICES NATIONAL WEATHER SERVICE TIYAN GU 847 PM CHST MON AUG 11 2025 GUZ001-111800- GUAM INTERNATIONAL AIRPORT-TIYAN GU 13.48N 144.79E ELEV. 248 FT 847 PM CHST MON AUG 11 2025 DATE MON 08/11/25 TUE 08/12/25 WED 08/13/25 THU 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 88 77 TEMP 81 79 78 78 84 88 87 85 82 79 78 78 84 88 87 85 82 79 77 DEWPT 77 77 77 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 77 RH 88 94 97100 82 72 75 80 88 97100100 82 72 75 80 88 97100 WIND DIR E SE SE SE SE SE SE E E E E E E NE NE NE NE E E WIND SPD 4 4 4 4 4 3 2 2 2 1 1 1 2 2 3 3 3 3 2 CLOUDS B1 SC SC SC SC B1 B1 SC SC SC SC SC SC B1 B1 SC SC SC SC POP 12HR 30 30 30 30 30 QPF 12HR 0.33 0.11 0.02 0.06 0.08 RAIN SHWRS C S S S S C C S S S S S S C C S S S S TSTMS S S S S S S S S S HEAT INDEX 90 84 94100100 96 92 84 94101101 97 91 84 MAX HEAT 93 88 94 100 99 90 94 101 100 90 DATE 08/14/25 FRI 08/15/25 SAT 08/16/25 SUN 08/17/25 MON 08/18/25 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 77 88 78 88 82 88 TEMP 84 87 82 77 84 87 82 77 84 87 83 79 84 87 85 82 85 87 DEWPT 77 77 77 77 76 76 76 76 77 77 77 77 78 78 78 78 78 78 PWIND DIR E E E E E E E E E WIND CHAR LT LT LT LT LT GN GN GN GN AVG CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 20 20 20 20 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 $$ MPZ001-111800- ROTA INTERNATIONAL AIRPORT-SINAPALU MP 14.17N 145.23E ELEV. 592 FT 847 PM CHST MON AUG 11 2025 DATE MON 08/11/25 TUE 08/12/25 WED 08/13/25 THU CHST3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MIN/MAX 76 87 76 87 78 TEMP 80 78 77 77 83 87 86 84 81 78 77 77 83 87 86 84 82 80 78 DEWPT 77 77 77 77 78 78 78 78 78 78 77 77 78 78 78 79 79 79 78 RH 91 97100100 85 75 77 82 91100100100 85 75 77 85 91 97100 WIND DIR E SE SE SE S SE SE E E E E E E E NE NE E E E WIND SPD 5 4 4 5 5 3 2 2 2 2 1 2 2 2 3 3 3 3 2 CLOUDS SC SC SC B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 20 20 20 20 20 QPF 12HR 0.02 0.02 0.20 0.07 0.08 RAIN SHWRS S S S S S S S S S S S S S S S S S S S TSTMS S S S S S S S S S S S HEAT INDEX 88 91 99 98 94 89 92100 99 96 91 86 MAX HEAT 91 86 91 99 97 88 92 100 98 90 DATE 08/14/25 FRI 08/15/25 SAT 08/16/25 SUN 08/17/25 MON 08/18/25 CHST6HRLY 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MAX/MIN 87 78 87 78 87 78 87 83 87 TEMP 83 86 82 78 83 86 82 78 83 86 82 79 83 86 85 83 85 86 DEWPT 78 78 78 78 76 76 76 76 77 77 77 77 78 78 78 78 78 78 PWIND DIR E E E E E E E E E WIND CHAR LT LT LT LT GN GN GN GN GN AVG CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 20 20 20 20 20 20 20 20 20 RAIN SHWRS S S S S S S S S S S S S S S S S S S $$ MPZ002-111800- TINIAN-SAN JOSE MP 14.97N 145.63E ELEV. 74 FT 847 PM CHST MON AUG 11 2025 DATE MON 08/11/25 TUE 08/12/25 WED 08/13/25 THU 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 76 TEMP 82 80 78 79 84 87 87 85 82 80 79 79 84 87 87 84 81 78 77 DEWPT 77 77 77 78 77 78 78 78 78 78 78 78 78 78 78 78 78 78 77 RH 85 91 97 97 80 75 75 80 88 94 97 97 82 75 75 82 91100100 WIND DIR E SE SE SE SE SE SE E E E E E E E NE NE E E E WIND SPD 6 6 5 5 5 4 3 3 3 2 2 2 2 2 2 4 4 3 2 CLOUDS SC SC SC B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 20 20 20 20 20 QPF 12HR 0.07 0.06 0.02 0.05 0.05 RAIN SHWRS S S S S S S 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 HEAT INDEX 91 86 94100 99 96 92 88 94100100 96 90 MAX HEAT 94 89 94 100 98 91 94 100 99 88 DATE 08/14/25 FRI 08/15/25 SAT 08/16/25 SUN 08/17/25 MON 08/18/25 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 76 88 76 88 78 88 81 88 TEMP 83 87 81 77 83 87 81 77 83 87 82 79 84 87 84 81 85 87 DEWPT 76 76 76 76 76 76 77 77 77 77 77 77 78 78 78 78 78 78 PWIND DIR E E E E E E E E E WIND CHAR LT LT LT LT GN GN GN GN GN AVG CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 20 20 20 20 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 $$ MPZ003-111800- SAIPAN INTERNATIONAL AIRPORT-OBYAN MP 15.11N 145.72E ELEV. 215 FT 847 PM CHST MON AUG 11 2025 DATE MON 08/11/25 TUE 08/12/25 WED 08/13/25 THU CHST3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MIN/MAX 78 88 78 88 76 TEMP 82 80 78 79 84 88 87 85 83 80 79 79 84 88 87 85 81 78 77 DEWPT 77 77 77 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 77 RH 85 91 97 97 82 72 75 80 85 94 97 97 82 72 75 80 91100100 WIND DIR E SE SE SE SE SE SE E E E E E E E NE NE E E E WIND SPD 8 6 5 5 5 4 3 3 3 2 2 2 2 2 2 4 4 3 2 CLOUDS SC SC SC B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 20 20 20 20 20 QPF 12HR 0.11 0.28 0.12 0.05 0.05 RAIN SHWRS S S S S S S S S S S S S S S S S S S S TSTMS S S S S S S S S S S S HEAT INDEX 91 87 94101100 97 92 88 95101100 96 90 MAX HEAT 94 90 94 101 99 91 95 101 99 88 DATE 08/14/25 FRI 08/15/25 SAT 08/16/25 SUN 08/17/25 MON 08/18/25 CHST6HRLY 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MAX/MIN 88 76 88 76 88 78 88 80 88 TEMP 83 87 81 77 83 87 81 77 83 87 83 79 84 87 84 81 85 87 DEWPT 76 76 76 76 77 77 77 77 77 77 77 77 78 78 78 78 78 78 PWIND DIR E E E E E E E E E WIND CHAR LT LT LT LT GN GN GN GN GN AVG CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 20 20 20 20 20 20 20 20 20 RAIN SHWRS S S S S S S S S S S S S S S S S S S $$