Point Forecast Matrices
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
985 FOMY50 PGUM 181800 PFMGUM POINT FORECAST MATRICES NATIONAL WEATHER SERVICE TIYAN GU 350 AM CHST WED NOV 19 2025 GUZ001-190600- GUAM INTERNATIONAL AIRPORT-TIYAN GU 13.48N 144.79E ELEV. 248 FT 350 AM CHST WED NOV 19 2025 DATE WED 11/19/25 THU 11/20/25 FRI 11/21/25 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 88 78 87 TEMP 78 79 84 88 87 85 83 80 79 79 84 88 87 85 83 80 79 79 83 87 86 DEWPT 77 77 77 77 78 78 78 78 78 78 77 77 77 78 79 79 79 79 78 78 78 RH 97 94 80 70 75 80 85 94 97 97 80 70 72 80 88 97100100 85 75 77 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 9 12 16 16 16 16 13 12 10 16 18 18 18 18 16 12 11 14 19 19 20 CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 POP 12HR 30 20 20 20 30 QPF 12HR 0.02 0.03 0.04 0.06 0.20 RAIN SHWRS S C S S S S S S S S S S S S S S S C C C C TSTMS S S S S S HEAT INDEX 83 93100100 97 92 87 94100 99 97 93 88 94100 99 MAX HEAT 93 100 99 91 94 100 99 91 94 100 DATE SAT 11/22/25 SUN 11/23/25 MON 11/24/25 TUE 11/25/25 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 79 88 77 89 77 89 TEMP 82 79 83 86 83 79 84 87 82 78 84 88 83 78 84 88 DEWPT 78 78 78 78 78 78 77 77 78 78 78 78 79 78 78 78 PWIND DIR E E E E E E E E WIND CHAR BZ BZ BZ BZ GN BZ GN GN AVG CLOUDS B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC POP 12HR 40 40 30 30 20 20 20 20 RAIN SHWRS C C C C C C C S S S S S S S S S TSTMS S S S S S $$ MPZ001-190600- ROTA INTERNATIONAL AIRPORT-SINAPALU MP 14.17N 145.23E ELEV. 592 FT 350 AM CHST WED NOV 19 2025 DATE WED 11/19/25 THU 11/20/25 FRI 11/21/25 CHST3HRLY 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MAX/MIN 86 76 86 76 85 TEMP 76 77 82 86 85 83 81 78 77 77 82 86 85 83 81 78 77 77 81 85 84 DEWPT 77 77 77 77 78 78 78 78 78 78 78 78 78 78 78 79 79 79 79 79 78 RH 103100 85 75 80 85 91100103103 88 77 80 85 91103107107 94 82 82 WIND DIR E E E E E E E E E E E E E E E E E E E E E WIND SPD 11 13 17 17 17 17 16 13 12 16 19 18 18 18 16 12 12 16 19 19 20 CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 POP 12HR 10 20 20 20 30 QPF 12HR 0.02 0.06 0.05 0.10 0.23 RAIN SHWRS S S S S S S S S S S S S S S S S S C C C C TSTMS S S S S HEAT INDEX 90 97 97 93 88 91 98 97 93 89 91 97 96 MAX HEAT 90 97 96 85 91 98 96 85 91 97 DATE SAT 11/22/25 SUN 11/23/25 MON 11/24/25 TUE 11/25/25 CHST6HRLY 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MIN/MAX 76 85 79 86 77 87 77 87 TEMP 80 77 81 84 82 79 83 85 81 78 83 87 82 78 83 87 DEWPT 78 78 78 78 78 78 77 77 78 78 78 78 79 78 78 78 PWIND DIR E E E E E E E E WIND CHAR BZ BZ BZ BZ BZ BZ BZ GN AVG CLOUDS B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 30 30 30 20 20 20 20 20 RAIN SHWRS C C C C C S S S S S S S S S S S TSTMS S S S $$ MPZ002-190600- TINIAN-SAN JOSE MP 14.97N 145.63E ELEV. 74 FT 350 AM CHST WED NOV 19 2025 DATE WED 11/19/25 THU 11/20/25 FRI 11/21/25 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 78 88 78 87 TEMP 78 79 84 87 87 85 82 80 79 79 84 88 87 85 83 80 79 79 83 87 86 DEWPT 77 77 77 77 78 78 77 77 78 78 77 78 78 78 79 79 79 79 79 78 78 RH 97 94 80 72 75 80 85 91 97 97 80 72 75 80 88 97100100 88 75 77 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 11 13 17 17 16 18 14 13 12 16 19 18 18 18 16 13 12 17 20 20 20 CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 POP 12HR 10 20 20 20 30 QPF 12HR 0.02 0.06 0.05 0.18 0.25 RAIN SHWRS S S S S S S S S S S S S S S S S S C C C C TSTMS S S S S HEAT INDEX 93 99 99 96 91 86 94101100 97 93 88 94100 99 MAX HEAT 93 99 98 89 94 101 99 91 94 100 DATE SAT 11/22/25 SUN 11/23/25 MON 11/24/25 TUE 11/25/25 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 88 76 89 76 89 TEMP 82 79 83 86 82 78 84 87 82 77 84 88 82 77 84 88 DEWPT 78 78 78 78 78 77 77 77 77 78 78 78 78 78 77 78 PWIND DIR E E E E E E E E WIND CHAR BZ BZ BZ BZ BZ BZ BZ GN AVG CLOUDS B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 30 30 30 20 20 20 20 20 RAIN SHWRS C C C C C S S S S S S S S S S S TSTMS S S S $$ MPZ003-190600- SAIPAN INTERNATIONAL AIRPORT-OBYAN MP 15.11N 145.72E ELEV. 215 FT 350 AM CHST WED NOV 19 2025 DATE WED 11/19/25 THU 11/20/25 FRI 11/21/25 CHST3HRLY 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MAX/MIN 88 78 88 78 87 TEMP 78 79 84 88 87 85 83 80 79 79 84 88 87 85 83 80 79 79 83 87 86 DEWPT 77 77 77 77 78 78 77 77 78 78 78 78 78 78 79 79 79 79 79 79 78 RH 97 94 80 70 75 80 82 91 97 97 82 72 75 80 88 97100100 88 77 77 WIND DIR E E E E E E E E E E E E E E E E E E E E E WIND SPD 11 13 17 17 16 17 16 13 12 16 19 18 18 18 16 13 12 17 20 20 20 CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 POP 12HR 10 20 20 20 30 QPF 12HR 0.03 0.07 0.06 0.19 0.25 RAIN SHWRS S S S S S S S S S S S S S S S S S C C C C TSTMS S S S S HEAT INDEX 83 94100100 97 91 87 83 94101101 97 93 88 94100 99 MAX HEAT 94 100 99 90 94 101 100 91 94 100 DATE SAT 11/22/25 SUN 11/23/25 MON 11/24/25 TUE 11/25/25 CHST6HRLY 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MIN/MAX 78 87 78 88 76 89 76 89 TEMP 82 79 83 86 82 78 84 87 82 77 84 88 82 77 84 88 DEWPT 78 78 78 78 78 77 77 77 77 78 78 78 78 78 78 78 PWIND DIR E E E E E E E E WIND CHAR BZ BZ BZ BZ BZ BZ BZ GN AVG CLOUDS B1 SC B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 30 30 30 20 20 20 20 20 RAIN SHWRS C C C C C S S S S S S S S S S S TSTMS S S S $$