Point Forecast Matrices
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
301 FOMY50 PGUM 190510 PFMGUM POINT FORECAST MATRICES NATIONAL WEATHER SERVICE TIYAN GU 307 PM CHST WED NOV 19 2025 GUZ001-191800- GUAM INTERNATIONAL AIRPORT-TIYAN GU 13.48N 144.79E ELEV. 248 FT 307 PM CHST WED NOV 19 2025 DATE WED 11/19/25 THU 11/20/25 FRI 11/21/25 SAT 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 88 78 87 78 TEMP 87 85 83 80 79 79 84 88 87 85 83 80 79 79 83 87 86 84 82 80 79 DEWPT 78 78 78 78 78 78 77 77 77 78 79 79 79 79 79 78 78 79 79 78 78 RH 75 80 85 94 97 97 80 70 72 80 88 97100100 88 75 77 85 91 94 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 16 16 13 12 11 13 16 16 14 14 12 11 11 13 19 18 17 17 14 12 12 CLOUDS SC B1 B1 B1 B1 SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 20 20 30 40 40 QPF 12HR 0.09 0.07 0.17 0.38 0.24 RAIN SHWRS S S S S S 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 HEAT INDEX 100 97 92 87 94 99 99 97 93 88 94100 99 96 92 86 MAX HEAT 100 99 90 94 99 99 91 94 100 98 90 DATE 11/22/25 SUN 11/23/25 MON 11/24/25 TUE 11/25/25 WED 11/26/25 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 79 88 77 89 77 89 77 89 TEMP 83 86 83 79 84 87 82 78 84 88 83 78 84 88 83 78 84 88 DEWPT 78 78 78 78 77 77 78 78 78 78 78 78 77 78 78 78 78 78 PWIND DIR E E E E E E E E E WIND CHAR BZ BZ BZ BZ BZ GN GN GN GN AVG CLOUDS B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 30 20 20 20 20 20 20 20 20 RAIN SHWRS C S S S S S S S S S S S S S S S S S TSTMS S S S $$ MPZ001-191800- ROTA INTERNATIONAL AIRPORT-SINAPALU MP 14.17N 145.23E ELEV. 592 FT 307 PM CHST WED NOV 19 2025 DATE WED 11/19/25 THU 11/20/25 FRI 11/21/25 SAT CHST3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MIN/MAX 76 86 76 85 76 TEMP 85 83 81 78 77 77 82 86 85 83 81 78 77 77 81 85 84 82 80 78 77 DEWPT 78 78 78 78 78 78 78 77 78 78 79 79 79 79 79 79 78 78 78 78 78 RH 80 85 91100103103 88 75 80 85 94103107107 94 82 82 88 94100103 WIND DIR E E E E E E E E E E E E E E E E E E E E E WIND SPD 17 18 17 13 13 14 18 18 17 18 16 14 13 16 19 20 17 19 16 13 14 CLOUDS SC B1 B1 B1 B1 SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 20 20 30 30 30 QPF 12HR 0.09 0.08 0.22 0.30 0.16 RAIN SHWRS S S S S S S S S S C C C C C C C C S S S S TSTMS S S S S S S S S HEAT INDEX 97 93 88 91 97 96 94 89 91 97 96 92 88 MAX HEAT 97 96 85 91 97 96 86 91 97 95 84 DATE 11/22/25 SUN 11/23/25 MON 11/24/25 TUE 11/25/25 WED 11/26/25 CHST6HRLY 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MAX/MIN 85 79 86 77 87 77 87 77 87 TEMP 81 84 82 79 83 85 81 78 83 87 82 78 83 87 82 78 83 87 DEWPT 78 78 78 78 76 77 78 78 78 78 79 78 78 78 78 78 78 78 PWIND DIR E E E E E E E E E WIND CHAR BZ BZ BZ BZ BZ BZ GN GN GN AVG CLOUDS B1 SC B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 20 20 20 20 20 20 20 20 20 RAIN SHWRS S S S S S S S S S S S S S S S S S S TSTMS S $$ MPZ002-191800- TINIAN-SAN JOSE MP 14.97N 145.63E ELEV. 74 FT 307 PM CHST WED NOV 19 2025 DATE WED 11/19/25 THU 11/20/25 FRI 11/21/25 SAT 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 88 78 87 78 TEMP 87 85 82 80 79 79 84 88 87 85 83 80 79 79 83 87 86 84 82 80 79 DEWPT 78 78 78 78 78 78 78 77 77 78 79 79 79 79 78 78 78 78 78 78 78 RH 75 80 88 94 97 97 82 70 72 80 88 97100100 85 75 77 82 88 94 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 16 18 16 14 13 16 18 18 17 18 16 14 12 16 19 18 18 18 17 13 12 CLOUDS SC B1 B1 B1 B1 SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC POP 12HR 20 20 30 30 30 QPF 12HR 0.10 0.08 0.30 0.31 0.08 RAIN SHWRS S S S S S S S S S C C C C C C C C S S S S TSTMS S S S S HEAT INDEX 99 96 91 86 94 99 99 97 93 88 94100 99 96 91 86 MAX HEAT 99 98 90 94 99 99 91 94 100 98 90 DATE 11/22/25 SUN 11/23/25 MON 11/24/25 TUE 11/25/25 WED 11/26/25 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 78 88 76 89 76 89 76 89 TEMP 83 86 82 78 84 87 82 77 84 88 82 77 84 88 82 77 84 88 DEWPT 78 78 78 77 76 77 78 78 78 78 79 78 77 78 78 78 78 78 PWIND DIR E E E E E E E E E WIND CHAR BZ BZ BZ BZ BZ BZ GN GN GN AVG CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 20 20 20 20 20 20 20 20 20 RAIN SHWRS S S S S S S S S S S S S S S S S S S $$ MPZ003-191800- SAIPAN INTERNATIONAL AIRPORT-OBYAN MP 15.11N 145.72E ELEV. 215 FT 307 PM CHST WED NOV 19 2025 DATE WED 11/19/25 THU 11/20/25 FRI 11/21/25 SAT CHST3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MIN/MAX 78 88 78 87 78 TEMP 87 85 83 80 79 79 84 88 87 85 83 80 79 79 83 87 86 84 82 80 79 DEWPT 78 78 78 77 78 78 78 77 77 78 79 79 79 79 78 78 78 78 78 78 78 RH 75 80 85 91 97 97 82 70 72 80 88 97100100 85 75 77 82 88 94 97 WIND DIR E E E E E E E E E E E E E E E E E E E E E WIND SPD 16 18 16 13 13 16 18 18 17 19 16 14 12 16 20 18 18 19 16 13 12 CLOUDS SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC POP 12HR 20 20 30 30 30 QPF 12HR 0.10 0.08 0.32 0.31 0.08 RAIN SHWRS S S S S S S S S S C C C C C C C C S S S S TSTMS S S S S HEAT INDEX 100 97 92 87 94100 99 97 93 88 94100 99 96 91 86 MAX HEAT 100 99 90 94 100 99 92 94 100 98 90 DATE 11/22/25 SUN 11/23/25 MON 11/24/25 TUE 11/25/25 WED 11/26/25 CHST6HRLY 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MAX/MIN 87 78 88 76 89 76 89 76 89 TEMP 83 86 82 78 84 87 82 77 84 88 82 77 84 88 82 77 84 88 DEWPT 78 78 78 77 76 77 78 78 78 78 79 78 78 78 78 78 78 78 PWIND DIR E E E E E E E E E WIND CHAR BZ BZ BZ BZ BZ BZ GN GN GN AVG CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 20 20 20 20 20 20 20 20 20 RAIN SHWRS S S S S S S S S S S S S S S S S S S $$