Point Forecast Matrices
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
321 FOMY50 PGUM 200600 PFMGUM POINT FORECAST MATRICES NATIONAL WEATHER SERVICE TIYAN GU 357 PM CHST THU NOV 20 2025 GUZ001-201800- GUAM INTERNATIONAL AIRPORT-TIYAN GU 13.48N 144.79E ELEV. 248 FT 357 PM CHST THU NOV 20 2025 DATE THU 11/20/25 FRI 11/21/25 SAT 11/22/25 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 78 87 79 TEMP 87 85 83 80 79 79 83 87 86 84 82 80 79 79 83 87 86 85 83 81 79 DEWPT 77 79 79 79 79 79 79 79 78 78 78 78 78 78 78 78 78 78 79 79 77 RH 72 82 88 97100100 88 77 77 82 88 94 97 97 85 75 77 80 88 94 94 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 14 17 10 13 9 13 17 18 13 13 12 11 10 13 17 18 17 14 12 12 8 CLOUDS SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 40 40 30 30 30 QPF 12HR 0.31 0.15 0.27 0.25 0.10 RAIN SHWRS S C C C C S S S S 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 HEAT INDEX 99 98 93 88 94100 99 96 92 86 94 99 99 96 93 89 84 MAX HEAT 99 99 91 94 100 98 90 94 99 98 92 DATE 11/23/25 MON 11/24/25 TUE 11/25/25 WED 11/26/25 THU 11/27/25 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 89 77 89 77 89 77 88 TEMP 84 87 82 78 84 88 83 78 84 88 83 78 84 88 83 78 84 88 DEWPT 76 77 78 78 78 78 79 78 77 78 78 78 78 78 79 79 79 79 PWIND DIR E E E E E E E NE E WIND CHAR GN GN GN GN GN GN GN GN GN AVG CLOUDS B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 30 20 20 20 20 10 20 20 20 RAIN SHWRS C S S S S S S S S S S S S S S S S S $$ MPZ001-201800- ROTA INTERNATIONAL AIRPORT-SINAPALU MP 14.17N 145.23E ELEV. 592 FT 357 PM CHST THU NOV 20 2025 DATE THU 11/20/25 FRI 11/21/25 SAT 11/22/25 SUN CHST3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MIN/MAX 76 85 76 85 79 TEMP 85 83 81 78 77 77 81 85 84 82 80 78 77 77 81 85 84 83 82 80 79 DEWPT 78 79 79 79 79 79 79 78 78 78 78 78 78 78 78 78 78 79 79 78 76 RH 80 88 94103107107 94 80 82 88 94100103103 91 80 82 88 91 94 91 WIND DIR E E E E E E E E E E E E E E E E E E E E E WIND SPD 17 18 16 17 12 18 17 17 16 18 12 14 11 18 19 18 19 18 16 17 10 CLOUDS SC B2 B2 B2 B2 SC SC SC SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 40 40 20 30 30 QPF 12HR 0.38 0.16 0.14 0.11 0.07 RAIN SHWRS S C C C C S S S S S S S S C C C C C C C C TSTMS S S S S HEAT INDEX 96 94 89 90 96 95 92 87 90 96 96 94 91 88 84 MAX HEAT 97 96 86 90 96 94 84 90 96 95 90 DATE 11/23/25 MON 11/24/25 TUE 11/25/25 WED 11/26/25 THU 11/27/25 CHST6HRLY 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MAX/MIN 86 77 87 77 87 77 87 77 87 TEMP 83 85 81 78 83 87 82 78 83 87 82 78 83 87 82 78 83 86 DEWPT 77 77 78 78 78 78 79 78 77 78 78 77 78 78 80 79 79 79 PWIND DIR E E E E E E E NE E WIND CHAR BZ BZ BZ BZ BZ GN GN BZ BZ AVG CLOUDS B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 30 20 20 20 20 10 20 20 20 RAIN SHWRS C S S S S S S S S S S S S S S S S S $$ MPZ002-201800- TINIAN-SAN JOSE MP 14.97N 145.63E ELEV. 74 FT 357 PM CHST THU NOV 20 2025 DATE THU 11/20/25 FRI 11/21/25 SAT 11/22/25 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 78 87 78 TEMP 87 85 83 80 79 79 83 87 86 84 82 80 79 79 83 87 86 84 82 80 78 DEWPT 77 78 79 79 79 79 78 77 77 78 77 77 77 77 77 77 78 78 78 77 77 RH 72 80 88 97100100 85 72 75 82 85 91 94 94 82 72 77 82 88 91 97 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 17 20 17 18 12 18 17 18 16 17 11 18 11 16 18 18 18 18 14 16 10 CLOUDS SC B1 B1 B1 B1 SC SC SC SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 40 40 20 30 30 QPF 12HR 0.34 0.14 0.08 0.05 0.09 RAIN SHWRS S C C C C S S S S S S S S C C C C C C C C HEAT INDEX 99 97 93 88 94 99 98 95 91 85 93 98 98 96 91 85 MAX HEAT 99 99 91 94 99 97 89 93 99 98 89 DATE 11/23/25 MON 11/24/25 TUE 11/25/25 WED 11/26/25 THU 11/27/25 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 89 76 89 76 89 76 89 TEMP 84 87 82 77 84 88 82 77 84 88 82 77 84 88 82 77 84 88 DEWPT 76 78 79 78 78 78 79 77 77 77 77 78 78 78 80 79 79 79 PWIND DIR E E E E E E E NE E WIND CHAR BZ BZ BZ BZ GN GN GN GN BZ AVG CLOUDS B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 30 20 20 20 20 10 20 20 20 RAIN SHWRS C S S S S S S S S S S S S S S S S S $$ MPZ003-201800- SAIPAN INTERNATIONAL AIRPORT-OBYAN MP 15.11N 145.72E ELEV. 215 FT 357 PM CHST THU NOV 20 2025 DATE THU 11/20/25 FRI 11/21/25 SAT 11/22/25 SUN CHST3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MIN/MAX 78 87 78 87 78 TEMP 87 85 83 80 79 79 83 87 86 84 82 80 79 79 83 87 86 84 82 80 78 DEWPT 77 78 79 79 79 79 78 77 77 77 77 77 77 77 77 77 78 78 78 77 77 RH 72 80 88 97100100 85 72 75 80 85 91 94 94 82 72 77 82 88 91 97 WIND DIR E E E E E E E E E E E E E E E E E E E E E WIND SPD 17 19 16 18 11 17 17 17 16 16 10 16 11 14 17 17 18 17 13 14 10 CLOUDS SC B1 B1 B1 B1 SC SC SC SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 40 40 20 30 30 QPF 12HR 0.34 0.13 0.08 0.05 0.07 RAIN SHWRS S C C C C S S S S S S S S C C C C C C C C HEAT INDEX 99 97 93 88 94 99 98 95 91 85 93 99 99 96 91 85 MAX HEAT 100 99 91 94 99 97 89 93 99 98 89 DATE 11/23/25 MON 11/24/25 TUE 11/25/25 WED 11/26/25 THU 11/27/25 CHST6HRLY 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MAX/MIN 88 76 89 76 89 76 89 76 89 TEMP 84 87 82 77 84 88 82 77 84 88 82 77 84 88 82 77 84 88 DEWPT 76 78 79 78 78 78 79 77 77 77 77 78 78 79 80 79 79 79 PWIND DIR E E E E E E E NE E WIND CHAR BZ BZ BZ BZ GN GN GN GN BZ AVG CLOUDS B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 30 20 20 20 20 10 20 20 20 RAIN SHWRS C S S S S S S S S S S S S S S S S S $$