Point Forecast Matrices
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
463 FOMY50 PGUM 220520 PFMGUM POINT FORECAST MATRICES NATIONAL WEATHER SERVICE TIYAN GU 314 PM CHST FRI AUG 22 2025 GUZ001-221800- GUAM INTERNATIONAL AIRPORT-TIYAN GU 13.48N 144.79E ELEV. 248 FT 314 PM CHST FRI AUG 22 2025 DATE FRI 08/22/25 SAT 08/23/25 SUN 08/24/25 MON 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 86 77 TEMP 87 85 82 79 78 78 83 87 87 85 82 79 78 78 82 86 85 84 81 79 78 DEWPT 77 77 77 77 77 77 77 77 77 77 77 78 78 78 78 78 78 78 78 79 78 RH 72 77 85 94 97 97 82 72 72 77 85 97100100 88 77 80 82 91100100 WIND DIR E E E E E E E E E E E E E E E E E E E E E WIND SPD 8 8 5 3 3 4 8 6 6 5 3 3 3 4 5 9 8 8 6 4 4 CLOUDS OV B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 60 50 30 30 30 QPF 12HR 0.26 0.16 0.16 0.09 0.10 RAIN SHWRS L C C C C C C C C 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 95 90 84 93 99 98 95 90 84 92 98 97 94 90 MAX HEAT 99 98 88 93 99 97 89 92 98 96 89 DATE 08/25/25 TUE 08/26/25 WED 08/27/25 THU 08/28/25 FRI 08/29/25 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 89 77 88 77 88 77 88 77 88 TEMP 84 88 82 78 83 87 82 78 83 87 82 78 83 87 82 78 83 87 DEWPT 78 78 79 79 78 78 79 79 79 79 79 79 79 79 79 79 78 79 PWIND DIR E E E E SE SE SE E E WIND CHAR GN GN GN GN GN 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 30 30 30 30 30 30 30 30 30 RAIN SHWRS C C C S 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 $$ MPZ001-221800- ROTA INTERNATIONAL AIRPORT-SINAPALU MP 14.17N 145.23E ELEV. 592 FT 314 PM CHST FRI AUG 22 2025 DATE FRI 08/22/25 SAT 08/23/25 SUN 08/24/25 MON CHST3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MIN/MAX 76 86 76 85 76 TEMP 86 83 80 78 76 77 82 85 85 83 80 78 76 77 81 85 85 83 80 78 76 DEWPT 77 77 77 77 77 77 77 77 77 77 78 78 78 78 78 78 78 78 78 78 78 RH 75 82 91 97103100 85 77 77 82 94100107103 91 80 80 85 94100107 WIND DIR E E E E E E E E E E E SE E E E E E E E E E WIND SPD 9 10 6 4 5 6 10 9 8 9 5 5 5 5 8 8 9 11 9 6 6 CLOUDS OV B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 60 50 40 30 40 QPF 12HR 0.25 0.15 0.16 0.15 0.12 RAIN SHWRS L C C C C C C C C C C C C C C C C C C C C TSTMS S S S S S S S S S S S S S S S S S S S S S HEAT INDEX 97 92 87 89 96 95 92 87 90 96 96 92 86 MAX HEAT 97 96 85 89 96 94 84 90 96 95 84 DATE 08/25/25 TUE 08/26/25 WED 08/27/25 THU 08/28/25 FRI 08/29/25 CHST6HRLY 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MAX/MIN 87 76 86 76 85 76 85 76 85 TEMP 82 86 81 76 82 85 80 76 81 85 80 76 81 85 80 76 81 85 DEWPT 78 79 79 79 79 79 79 79 79 79 79 79 79 79 79 79 79 79 PWIND DIR E E E E SE SE SE E E WIND CHAR GN GN GN GN GN LT GN LT GN AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 40 30 30 30 30 30 30 30 30 RAIN SHWRS C C C C C C C C C C C C C C C C C C TSTMS S S S S S S S S S S S S S S S S S S $$ MPZ002-221800- TINIAN-SAN JOSE MP 14.97N 145.63E ELEV. 74 FT 314 PM CHST FRI AUG 22 2025 DATE FRI 08/22/25 SAT 08/23/25 SUN 08/24/25 MON 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 87 77 TEMP 87 85 82 79 78 78 83 88 87 85 82 79 78 78 83 86 86 84 81 79 77 DEWPT 77 77 77 77 77 77 77 77 77 77 78 78 78 78 78 78 78 78 79 79 78 RH 72 77 85 94 97 97 82 70 72 77 88 97100100 85 77 77 82 94100103 WIND DIR E E E E E NE E E E E E E E E E E E E E E E WIND SPD 8 9 4 3 4 6 10 9 9 9 6 5 4 5 9 9 9 11 9 6 6 CLOUDS OV OV OV OV OV B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 70 60 40 30 30 QPF 12HR 0.07 0.04 0.08 0.11 0.08 RAIN SHWRS L L L L L 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 99 95 90 84 93 99 99 96 91 84 92 98 97 94 90 MAX HEAT 100 98 89 93 99 98 89 92 98 97 89 DATE 08/25/25 TUE 08/26/25 WED 08/27/25 THU 08/28/25 FRI 08/29/25 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 89 77 88 77 87 77 87 77 87 TEMP 84 88 82 78 83 87 82 78 83 86 81 77 83 86 81 77 83 86 DEWPT 78 78 79 79 79 79 79 79 79 79 79 79 79 79 79 79 79 79 PWIND DIR E E E E SE SE SE E E WIND CHAR GN GN GN GN GN LT GN LT GN AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 30 30 30 30 30 30 30 30 30 RAIN SHWRS C C C S 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 $$ MPZ003-221800- SAIPAN INTERNATIONAL AIRPORT-OBYAN MP 15.11N 145.72E ELEV. 215 FT 314 PM CHST FRI AUG 22 2025 DATE FRI 08/22/25 SAT 08/23/25 SUN 08/24/25 MON CHST3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MIN/MAX 77 88 77 86 77 TEMP 87 85 82 79 78 78 84 88 87 85 82 79 78 78 82 86 85 84 81 79 78 DEWPT 77 77 77 77 77 77 77 77 77 77 78 78 78 78 78 78 78 78 79 78 78 RH 72 77 85 94 97 97 80 70 72 77 88 97100100 88 77 80 82 94 97100 WIND DIR E E E E E NE E E E E E E E E E E E E E E NE WIND SPD 8 8 4 3 3 5 9 9 9 9 6 5 4 5 9 9 9 11 9 6 6 CLOUDS OV OV OV OV OV B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 70 60 40 30 30 QPF 12HR 0.06 0.03 0.07 0.10 0.07 RAIN SHWRS L L L L L C C C C C C C C C C C C C C C C TSTMS S S S S S S S S S S S S S S S S S S S S S HEAT INDEX 100 96 90 84 93100 99 96 91 84 92 98 97 94 90 MAX HEAT 100 99 89 93 100 98 89 92 98 96 89 DATE 08/25/25 TUE 08/26/25 WED 08/27/25 THU 08/28/25 FRI 08/29/25 CHST6HRLY 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MAX/MIN 88 77 88 77 87 77 87 77 87 TEMP 84 88 82 78 83 87 82 78 83 86 81 78 83 86 81 78 83 86 DEWPT 78 78 79 79 79 79 79 79 79 79 79 79 79 79 80 79 79 79 PWIND DIR E E E E SE SE SE E E WIND CHAR GN GN GN GN GN GN GN LT GN AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 30 30 30 30 30 30 30 30 30 RAIN SHWRS C C C S C C C C C C C C C C C C C S TSTMS S S S S S S S S S S S S S S S S S S $$