Point Forecast Matrices
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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181 FOMY50 PGUM 161710 PFMGUM POINT FORECAST MATRICES NATIONAL WEATHER SERVICE TIYAN GU 309 AM CHST THU JUL 17 2025 GUZ001-170600- GUAM INTERNATIONAL AIRPORT-TIYAN GU 13.48N 144.79E ELEV. 248 FT 309 AM CHST THU JUL 17 2025 DATE THU 07/17/25 FRI 07/18/25 SAT 07/19/25 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 78 87 76 86 TEMP 78 79 84 88 88 85 83 80 78 78 83 86 86 84 81 78 77 77 82 86 86 DEWPT 77 77 77 77 77 77 78 78 77 77 77 77 77 78 78 78 77 77 78 77 77 RH 97 94 80 70 70 77 85 94 97 97 82 75 75 82 91100100100 88 75 75 WIND DIR E SE SE E E E E E E E E E E E E E E E E E SE WIND SPD 6 9 12 11 11 11 10 9 8 8 8 8 8 8 8 6 5 8 10 9 8 CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 30 30 40 40 40 QPF 12HR 0.06 0.12 0.26 0.28 0.30 RAIN SHWRS C S S S S C C C C C C C C 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 94100 99 96 92 85 92 98 97 94 89 91 98 97 MAX HEAT 94 100 98 90 92 98 96 86 91 98 DATE SUN 07/20/25 MON 07/21/25 TUE 07/22/25 WED 07/23/25 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 76 87 76 86 77 87 76 86 TEMP 81 77 83 86 81 77 82 86 81 77 83 86 81 76 82 86 DEWPT 77 77 77 77 77 77 78 77 78 77 78 78 78 76 77 77 PWIND DIR SE S SE S S S S SW WIND CHAR LT LT LT GN GN GN LT LT AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 40 40 30 30 30 30 30 30 RAIN SHWRS C C C C C C C C C C C C C C C S TSTMS S S S S S S S S S S S S S S S S $$ MPZ001-170600- ROTA INTERNATIONAL AIRPORT-SINAPALU MP 14.17N 145.23E ELEV. 592 FT 309 AM CHST THU JUL 17 2025 DATE THU 07/17/25 FRI 07/18/25 SAT 07/19/25 CHST3HRLY 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MAX/MIN 86 77 84 75 83 TEMP 78 78 82 86 85 83 81 79 77 78 81 83 83 81 79 77 76 76 80 83 82 DEWPT 76 76 76 76 77 77 77 77 77 77 77 77 77 77 78 77 76 76 77 77 77 RH 94 94 82 72 77 82 88 94100 97 88 82 82 88 97100100100 91 82 85 WIND DIR E SE SE E E E E E E E E E E E E E NE E E E E WIND SPD 9 10 13 12 12 12 12 11 10 10 12 12 12 11 11 10 9 11 12 12 11 CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 30 30 40 40 40 QPF 12HR 0.07 0.16 0.21 0.21 0.29 RAIN SHWRS C S S S S C C C C C C C C C C C C C C C C TSTMS S S S S S S S S S S S S S S S S S S S S S HEAT INDEX 90 96 95 92 88 88 93 92 89 85 92 91 MAX HEAT 90 96 94 87 88 93 91 85 92 DATE SUN 07/20/25 MON 07/21/25 TUE 07/22/25 WED 07/23/25 CHST6HRLY 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MIN/MAX 75 84 75 84 75 83 74 84 TEMP 79 75 80 83 79 76 80 83 79 75 80 82 78 75 80 83 DEWPT 77 75 77 77 77 76 77 77 77 75 77 77 77 75 77 76 PWIND DIR SE S SE SE S SE SE SE WIND CHAR GN GN GN GN GN GN GN GN AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 40 40 30 30 30 30 30 30 RAIN SHWRS C C C C C C C C C C C C C C C C TSTMS S S S S S S S S S S S S S S S S $$ MPZ002-170600- TINIAN-SAN JOSE MP 14.97N 145.63E ELEV. 74 FT 309 AM CHST THU JUL 17 2025 DATE THU 07/17/25 FRI 07/18/25 SAT 07/19/25 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 79 86 78 86 TEMP 80 80 84 87 87 85 83 81 79 80 83 86 86 84 82 80 78 79 83 86 86 DEWPT 76 76 77 77 77 77 77 77 77 77 77 77 78 78 78 78 77 78 78 78 77 RH 88 88 80 72 72 77 82 88 94 91 82 75 77 82 88 94 97 97 85 77 75 WIND DIR E E SE E E E E E E E E E E E E E E E E E E WIND SPD 8 10 12 12 12 12 11 10 9 9 9 10 10 10 9 9 10 10 10 10 10 CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 30 30 40 40 40 QPF 12HR 0.05 0.10 0.19 0.26 0.28 RAIN SHWRS C S S S S C C C C C C C C 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 85 86 94 99 98 96 92 88 84 85 93 98 97 94 90 85 92 98 97 MAX HEAT 86 94 99 98 91 93 98 96 89 92 98 DATE SUN 07/20/25 MON 07/21/25 TUE 07/22/25 WED 07/23/25 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 78 87 78 86 78 86 78 86 TEMP 82 79 83 86 82 79 83 85 82 79 83 85 82 79 83 85 DEWPT 78 77 77 77 77 77 78 78 78 77 78 78 78 77 77 77 PWIND DIR E SE SE SE S SE SE S WIND CHAR GN GN GN GN GN GN GN GN AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 40 40 30 30 30 30 30 30 RAIN SHWRS C C C C C C C C 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 $$ MPZ003-170600- SAIPAN INTERNATIONAL AIRPORT-OBYAN MP 15.11N 145.72E ELEV. 215 FT 309 AM CHST THU JUL 17 2025 DATE THU 07/17/25 FRI 07/18/25 SAT 07/19/25 CHST3HRLY 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MAX/MIN 89 79 87 77 87 TEMP 80 80 85 88 88 86 83 81 79 79 84 87 86 84 81 79 77 78 83 87 86 DEWPT 77 77 77 77 77 77 78 78 77 78 78 78 78 78 78 78 77 78 78 78 78 RH 91 91 77 70 70 75 85 91 94 97 82 75 77 82 91 97100100 85 75 77 WIND DIR E E SE E E E E E E E E E E E E E E E E E E WIND SPD 8 10 12 12 12 12 11 10 9 9 10 11 11 11 10 9 9 10 11 11 11 CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 30 30 40 40 40 QPF 12HR 0.05 0.10 0.19 0.26 0.28 RAIN SHWRS C S S S S C C C C C C C C C C C C C C C C TSTMS S S S S S S S S S S S S S S S S S S S S S HEAT INDEX 84 87 95101100 97 93 88 84 94 99 98 95 90 93 99 98 MAX HEAT 85 95 101 100 91 94 99 97 88 93 99 DATE SUN 07/20/25 MON 07/21/25 TUE 07/22/25 WED 07/23/25 CHST6HRLY 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MIN/MAX 78 88 78 88 77 88 77 88 TEMP 82 78 84 87 82 78 84 87 82 78 83 87 82 78 84 87 DEWPT 78 77 77 77 77 77 78 78 78 78 78 78 78 77 77 77 PWIND DIR E SE SE SE SE SE SE S WIND CHAR GN GN GN GN GN GN GN GN AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 40 40 30 30 30 30 30 30 RAIN SHWRS C C C C C C C C C C C C C C C C TSTMS S S S S S S S S S S S S S S S S $$