Point Forecast Matrices
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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901 FOMY50 PGUM 211710 PFMGUM POINT FORECAST MATRICES NATIONAL WEATHER SERVICE TIYAN GU 301 AM CHST TUE JUL 22 2025 GUZ001-220600- GUAM INTERNATIONAL AIRPORT-TIYAN GU 13.48N 144.79E ELEV. 248 FT 301 AM CHST TUE JUL 22 2025 DATE TUE 07/22/25 WED 07/23/25 THU 07/24/25 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 87 76 86 76 86 TEMP 77 78 83 87 86 84 81 78 76 77 82 86 86 83 81 78 76 77 82 86 86 DEWPT 77 78 78 78 78 78 78 78 76 77 78 78 78 78 78 78 76 77 78 78 78 RH 100100 85 75 77 82 91100100100 88 77 77 85 91100100100 88 77 77 WIND DIR SE SE SE SE E E E SE SE E S SE E NE NE N NW W W W W WIND SPD 8 3 5 10 9 9 10 8 8 4 3 3 2 3 4 4 4 8 11 12 12 CLOUDS SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 OV OV OV OV POP 12HR 40 40 40 50 60 QPF 12HR 0.16 0.39 0.36 0.57 0.84 RAIN SHWRS S C C C C C C C C C C C C C C C C L L L L TSTMS S S S S S S S S S S S S S S S S S S S S S HEAT INDEX 92 99 98 94 89 91 98 97 94 89 91 98 97 MAX HEAT 92 99 97 86 91 98 96 85 91 98 DATE FRI 07/25/25 SAT 07/26/25 SUN 07/27/25 MON 07/28/25 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 85 76 85 76 84 76 85 TEMP 81 76 81 84 80 76 81 84 80 76 81 83 80 76 81 85 DEWPT 78 76 78 78 78 76 78 78 79 76 77 77 77 77 77 77 PWIND DIR W W W SW SW SW SW SW WIND CHAR BZ BZ BZ GN GN GN GN GN AVG CLOUDS OV OV OV OV OV OV OV B2 B2 B2 B1 B1 B1 B1 B1 B1 POP 12HR 70 70 70 70 60 40 40 30 RAIN SHWRS L L L L L L L L L C C C C C C S TSTMS S S S S S S S S S S S S S S S S $$ MPZ001-220600- ROTA INTERNATIONAL AIRPORT-SINAPALU MP 14.17N 145.23E ELEV. 592 FT 301 AM CHST TUE JUL 22 2025 DATE TUE 07/22/25 WED 07/23/25 THU 07/24/25 CHST3HRLY 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MAX/MIN 83 75 84 75 84 TEMP 75 76 80 83 83 81 79 77 75 76 80 84 83 81 79 77 76 76 80 84 83 DEWPT 75 76 78 78 78 78 78 77 75 76 78 78 78 78 78 77 76 76 78 78 78 RH 100100 94 85 85 91 97100100100 94 82 85 91 97100100100 94 82 85 WIND DIR SE S SE E E E E E S E SE E E E NE NE NE N NW NW NW WIND SPD 10 5 4 11 12 12 12 10 8 10 4 4 5 6 8 6 5 5 8 10 12 CLOUDS SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 OV OV OV OV POP 12HR 40 40 40 50 60 QPF 12HR 0.15 0.37 0.39 0.58 0.84 RAIN SHWRS S C C C C C C C C C C C C C C C C L L L L TSTMS S S S S S S S S S S S S S S S S S S S S S HEAT INDEX 85 93 92 89 88 94 93 90 84 88 94 93 MAX HEAT 85 93 91 88 94 92 88 94 DATE FRI 07/25/25 SAT 07/26/25 SUN 07/27/25 MON 07/28/25 CHST6HRLY 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MIN/MAX 75 83 75 83 75 82 75 84 TEMP 79 76 80 82 79 75 80 82 79 75 79 82 78 75 80 83 DEWPT 78 76 78 78 78 75 78 78 79 75 77 77 77 77 78 78 PWIND DIR W W W SW SW SW SW SW WIND CHAR BZ BZ BZ GN GN GN GN GN AVG CLOUDS OV OV OV OV OV OV OV OV B2 B2 B2 B2 B1 B1 B1 B1 POP 12HR 70 70 70 70 60 50 40 30 RAIN SHWRS L L L L L L L L L C C C C C C S TSTMS S S S S S S S S S S S S S S S S $$ MPZ002-220600- TINIAN-SAN JOSE MP 14.97N 145.63E ELEV. 74 FT 301 AM CHST TUE JUL 22 2025 DATE TUE 07/22/25 WED 07/23/25 THU 07/24/25 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 78 86 78 86 TEMP 79 79 83 86 85 84 82 80 79 79 83 85 85 84 82 80 79 79 83 85 85 DEWPT 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 RH 97 97 85 77 80 82 88 94 97 97 85 80 80 82 88 94 97 97 85 80 80 WIND DIR SE E E E E E E E E SE SE E E E E E E NE NE N N WIND SPD 12 8 10 18 12 16 16 17 12 9 8 6 6 9 11 10 8 6 6 9 11 CLOUDS SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 POP 12HR 40 40 40 40 50 QPF 12HR 0.17 0.35 0.32 0.42 0.61 RAIN SHWRS S C C C C 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 93 98 97 94 91 86 92 97 97 94 91 85 92 97 97 MAX HEAT 84 93 98 96 89 92 97 96 89 92 97 DATE FRI 07/25/25 SAT 07/26/25 SUN 07/27/25 MON 07/28/25 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 84 78 84 78 84 78 85 TEMP 82 79 82 84 81 79 82 84 81 79 82 83 81 79 82 84 DEWPT 78 78 78 78 78 78 78 78 79 78 77 77 77 77 78 78 PWIND DIR NW W W SW SW SW SW SW WIND CHAR GN BZ BZ BZ GN BZ GN BZ AVG CLOUDS OV OV OV OV OV OV OV OV OV B2 B2 B2 B1 B1 B1 B1 POP 12HR 70 70 70 70 70 60 40 30 RAIN SHWRS L L L L L L L L L L L C C C C S TSTMS S S S S S S S S S S S S S S S S $$ MPZ003-220600- SAIPAN INTERNATIONAL AIRPORT-OBYAN MP 15.11N 145.72E ELEV. 215 FT 301 AM CHST TUE JUL 22 2025 DATE TUE 07/22/25 WED 07/23/25 THU 07/24/25 CHST3HRLY 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MAX/MIN 88 77 88 77 88 TEMP 78 78 83 87 87 85 82 80 78 78 84 88 87 85 82 80 78 78 84 88 87 DEWPT 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 RH 100100 85 75 75 80 88 94100100 82 72 75 80 88 94100100 82 72 75 WIND DIR SE E E E E E E E E E SE E E E E E E NE NE N N WIND SPD 12 8 9 16 11 14 14 14 12 10 8 8 6 9 11 10 8 8 8 9 11 CLOUDS SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 POP 12HR 40 40 40 40 50 QPF 12HR 0.22 0.30 0.30 0.41 0.60 RAIN SHWRS S C C C C C C C C C C C C C C C C C C C C TSTMS S S S S S S S S S S S S S S S S S S S S S HEAT INDEX 94101 99 96 91 85 94101100 97 92 85 94101100 MAX HEAT 94 101 99 90 94 101 99 90 94 101 DATE FRI 07/25/25 SAT 07/26/25 SUN 07/27/25 MON 07/28/25 CHST6HRLY 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MIN/MAX 77 84 77 84 77 84 77 85 TEMP 82 78 82 84 81 78 82 84 81 78 81 83 80 78 82 84 DEWPT 78 78 78 78 78 78 78 78 79 78 77 77 77 77 78 78 PWIND DIR NW W W SW SW SW SW SW WIND CHAR GN BZ BZ BZ GN BZ GN BZ AVG CLOUDS OV OV OV OV OV OV OV OV OV B2 B2 B2 B1 B1 B1 B1 POP 12HR 70 70 70 70 70 60 40 30 RAIN SHWRS L L L L L L L L L L L C C C C C TSTMS S S S S S S S S S S S S S S S S $$