Point Forecast Matrices
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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161 FOMY50 PGUM 170540 PFMGUM POINT FORECAST MATRICES NATIONAL WEATHER SERVICE TIYAN GU 330 PM CHST THU JUL 17 2025 GUZ001-171800- GUAM INTERNATIONAL AIRPORT-TIYAN GU 13.48N 144.79E ELEV. 248 FT 330 PM CHST THU JUL 17 2025 DATE THU 07/17/25 FRI 07/18/25 SAT 07/19/25 SUN 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 76 86 76 TEMP 88 85 83 80 78 78 83 86 86 84 81 78 77 77 82 86 86 84 81 78 77 DEWPT 77 78 78 78 78 78 78 78 78 78 79 78 77 77 78 78 78 78 79 78 77 RH 70 80 85 94100100 85 77 77 82 94100100100 88 77 77 82 94100100 WIND DIR E E SE SE SE E E E E NE E E E E E E E E E SE S WIND SPD 11 9 8 5 5 8 12 11 11 11 10 9 8 6 9 9 9 6 5 4 3 CLOUDS B1 SC B1 B1 B1 B1 B1 B1 B1 SC SC SC SC B2 B2 B2 B2 B2 B2 B2 B2 POP 12HR 40 40 20 40 50 QPF 12HR 0.17 0.10 0.04 0.20 0.26 RAIN SHWRS S S C C C S S S S S S S S C C C C C C C C TSTMS S S S S S S S S S S S S S S S S S S S S S HEAT INDEX 99 97 92 85 93 99 98 94 90 92 99 98 94 90 MAX HEAT 100 98 90 93 99 97 86 92 99 97 88 DATE 07/20/25 MON 07/21/25 TUE 07/22/25 WED 07/23/25 THU 07/24/25 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 76 86 77 87 76 86 76 86 TEMP 83 86 81 77 82 86 81 77 83 86 81 76 82 86 81 76 82 86 DEWPT 78 78 78 77 78 78 79 77 78 78 79 76 78 78 78 76 78 78 PWIND DIR S S S SE SE SE SE SE S WIND CHAR LT LT LT LT LT LT LT LT LT AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 50 30 30 30 30 20 20 30 30 RAIN SHWRS C C C C C S C C C S S S S S C C C C TSTMS S S S S S S S S S S S S S S S S S S $$ MPZ001-171800- ROTA INTERNATIONAL AIRPORT-SINAPALU MP 14.17N 145.23E ELEV. 592 FT 330 PM CHST THU JUL 17 2025 DATE THU 07/17/25 FRI 07/18/25 SAT 07/19/25 SUN CHST3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MIN/MAX 77 84 75 83 75 TEMP 85 83 81 79 77 78 81 83 83 81 79 77 76 76 80 83 82 81 79 77 75 DEWPT 77 78 78 78 77 78 78 78 78 78 79 77 76 76 79 78 78 79 79 77 75 RH 77 85 91 97100100 91 85 85 91100100100100 97 85 88 94100100100 WIND DIR E E E E E E E E E NE E E E E E E E E E SE SE WIND SPD 12 11 8 6 6 9 9 11 12 13 12 10 8 10 10 9 9 9 6 5 5 CLOUDS B1 SC B1 B1 B1 B1 B1 B1 B1 SC SC SC SC B2 B2 B2 B2 B2 B2 B2 B2 POP 12HR 40 40 20 50 50 QPF 12HR 0.22 0.09 0.01 0.25 0.23 RAIN SHWRS S S C C C S S S S S S S S C C C C C C C C TSTMS S S S S S S S S S S S S S S S S S S S S S HEAT INDEX 95 93 89 89 93 92 90 86 93 92 89 MAX HEAT 96 95 88 89 93 92 86 93 91 DATE 07/20/25 MON 07/21/25 TUE 07/22/25 WED 07/23/25 THU 07/24/25 CHST6HRLY 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MAX/MIN 84 75 84 75 83 75 84 75 84 TEMP 80 83 79 76 80 83 79 75 80 83 79 75 80 83 79 76 80 84 DEWPT 78 78 78 76 78 78 79 75 78 79 79 75 78 78 78 76 78 78 PWIND DIR SE SE S SE SE SE SE E SE WIND CHAR LT LT LT LT LT LT LT LT LT AVG CLOUDS B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 50 40 30 30 30 30 30 30 30 RAIN SHWRS C C C C C S C C C S C C C S C C C C TSTMS S S S S S S S S S S S S S S S S S S $$ MPZ002-171800- TINIAN-SAN JOSE MP 14.97N 145.63E ELEV. 74 FT 330 PM CHST THU JUL 17 2025 DATE THU 07/17/25 FRI 07/18/25 SAT 07/19/25 SUN 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 86 78 86 78 TEMP 87 85 83 81 79 80 83 86 86 84 82 80 78 79 83 86 86 84 82 80 79 DEWPT 77 77 78 78 78 78 78 78 78 79 79 79 78 79 78 78 78 78 79 79 78 RH 72 77 85 91 97 94 85 77 77 85 91 97100100 85 77 77 82 91 97 97 WIND DIR E E E E E SE SE E E E NE E E E E E E E E E SE WIND SPD 12 11 8 6 6 9 8 8 10 13 14 10 9 10 10 10 10 11 10 6 5 CLOUDS B1 SC B1 B1 B1 B1 B1 B1 B1 SC SC SC SC B2 B2 B2 B2 B2 B2 B2 B2 POP 12HR 40 40 20 50 50 QPF 12HR 0.13 0.06 0 0.35 0.25 RAIN SHWRS S S C C C S S S S S S S S C C C C C C C C TSTMS S S S S S S S S S S S S S S S S S S S S S HEAT INDEX 98 96 92 88 84 85 93 98 97 95 91 85 93 99 98 95 91 86 MAX HEAT 99 98 91 93 98 97 90 93 99 97 90 DATE 07/20/25 MON 07/21/25 TUE 07/22/25 WED 07/23/25 THU 07/24/25 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 86 78 86 78 86 78 86 TEMP 83 86 82 79 83 85 82 79 83 85 82 79 83 85 82 79 83 85 DEWPT 78 78 78 78 78 78 79 78 78 78 79 79 78 78 78 78 78 78 PWIND DIR SE SE SE SE SE E E E SE WIND CHAR LT LT LT LT LT LT LT LT LT AVG CLOUDS B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 50 50 30 30 30 30 30 30 30 RAIN SHWRS C C C C C S C C C S C C C C C S C C TSTMS S S S S S S S S S S S S S S S S S S $$ MPZ003-171800- SAIPAN INTERNATIONAL AIRPORT-OBYAN MP 15.11N 145.72E ELEV. 215 FT 330 PM CHST THU JUL 17 2025 DATE THU 07/17/25 FRI 07/18/25 SAT 07/19/25 SUN CHST3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MIN/MAX 79 87 77 87 78 TEMP 88 86 83 81 79 79 84 87 86 84 81 79 77 78 83 87 86 84 82 80 78 DEWPT 77 77 78 78 77 78 78 78 78 79 79 79 77 78 78 78 78 78 79 79 78 RH 70 75 85 91 94 97 82 75 77 85 94100100100 85 75 77 82 91 97100 WIND DIR E E E E E SE SE E E E E E E E E E E E E E SE WIND SPD 12 10 8 6 6 9 8 8 10 13 14 10 9 10 11 10 10 12 10 8 5 CLOUDS B1 SC B1 B1 B1 B1 B1 B1 B1 SC SC SC SC B2 B2 B2 B2 B2 B2 B2 B2 POP 12HR 40 40 20 50 50 QPF 12HR 0.11 0.06 0 0.37 0.25 RAIN SHWRS S S C C C S S S S S S S S C C C C C C C C TSTMS S S S S S S S S S S S S S S S S S S S S S HEAT INDEX 100 97 93 88 84 94 99 99 96 91 93100 99 96 91 85 MAX HEAT 101 100 91 94 99 98 89 93 100 98 90 DATE 07/20/25 MON 07/21/25 TUE 07/22/25 WED 07/23/25 THU 07/24/25 CHST6HRLY 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MAX/MIN 88 78 88 77 88 77 88 77 88 TEMP 84 87 82 78 84 87 82 78 83 87 82 78 84 87 82 78 84 87 DEWPT 78 78 78 78 78 78 79 78 78 78 79 78 78 78 78 78 78 78 PWIND DIR SE SE SE SE SE E E E SE WIND CHAR LT LT LT LT LT LT LT LT LT AVG CLOUDS B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 50 50 30 30 30 30 30 30 30 RAIN SHWRS C C C C C S C C C S C C C C C S C C TSTMS S S S S S S S S S S S S S S S S S S $$