Point Forecast Matrices
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
394 FOMY50 PGUM 151750 PFMGUM POINT FORECAST MATRICES NATIONAL WEATHER SERVICE TIYAN GU 346 AM CHST THU OCT 16 2025 GUZ001-160600- GUAM INTERNATIONAL AIRPORT-TIYAN GU 13.48N 144.79E ELEV. 248 FT 346 AM CHST THU OCT 16 2025 DATE THU 10/16/25 FRI 10/17/25 SAT 10/18/25 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 88 TEMP 76 77 83 87 86 84 82 80 79 79 84 88 87 85 83 80 79 79 84 88 87 DEWPT 78 78 78 78 78 79 79 79 79 79 78 78 78 79 79 79 79 79 79 79 79 RH 107103 85 75 77 85 91 97100100 82 72 75 82 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 6 11 16 11 10 9 9 9 9 12 14 13 12 12 11 9 9 12 14 13 14 CLOUDS B2 B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC B1 B1 B1 B1 POP 12HR 60 40 20 20 30 QPF 12HR 0.27 0.14 0.09 0.06 0.20 RAIN SHWRS L C C C C S S S S S S S S S S S S C C C C TSTMS S S S S S S S S S HEAT INDEX 92 99 99 96 92 86 95101100 98 94 89 95102102 MAX HEAT 92 100 98 91 95 101 100 92 95 102 DATE SUN 10/19/25 MON 10/20/25 TUE 10/21/25 WED 10/22/25 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 88 78 87 78 88 80 88 TEMP 83 79 84 87 82 79 83 86 82 79 84 87 84 81 85 87 DEWPT 80 79 79 79 79 79 79 78 79 79 78 78 79 79 79 79 PWIND DIR E E E E E SE SE SE WIND CHAR GN GN GN GN GN GN GN GN AVG CLOUDS 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 40 RAIN SHWRS C S C C C S 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 $$ MPZ001-160600- ROTA INTERNATIONAL AIRPORT-SINAPALU MP 14.17N 145.23E ELEV. 592 FT 346 AM CHST THU OCT 16 2025 DATE THU 10/16/25 FRI 10/17/25 SAT 10/18/25 CHST3HRLY 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MAX/MIN 86 78 86 78 86 TEMP 76 77 82 86 85 84 82 80 78 79 83 86 85 84 82 80 78 79 83 86 85 DEWPT 78 78 78 78 78 79 79 79 79 79 79 78 78 79 79 79 79 79 79 79 79 RH 107103 88 77 80 85 91 97103100 88 77 80 85 91 97103100 88 80 82 WIND DIR E E E E E E E E E E E E E E E E E E E E E WIND SPD 10 13 16 13 12 11 10 11 11 13 16 13 13 13 11 10 9 12 14 13 14 CLOUDS B2 B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC B1 B1 B1 B1 POP 12HR 60 40 20 20 30 QPF 12HR 0.34 0.16 0.09 0.05 0.20 RAIN SHWRS L C C C C S S S S S S S S S S S S C C C C TSTMS S S S S S S S S S HEAT INDEX 91 98 98 95 91 86 93 98 98 95 92 86 94100 99 MAX HEAT 91 98 97 90 93 98 97 90 94 100 DATE SUN 10/19/25 MON 10/20/25 TUE 10/21/25 WED 10/22/25 CHST6HRLY 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MIN/MAX 78 86 78 86 78 86 82 86 TEMP 82 78 83 85 82 78 83 85 82 78 83 86 84 82 84 85 DEWPT 80 79 79 79 79 79 78 79 79 79 79 78 79 79 79 79 PWIND DIR E E E E E E SE SE WIND CHAR GN GN GN GN GN GN GN GN AVG CLOUDS B1 B1 B1 B1 B1 SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 30 20 20 30 30 30 30 40 RAIN SHWRS C S S S S S C C C C C C C C C C TSTMS S S S S S S S S S S S S S S S S $$ MPZ002-160600- TINIAN-SAN JOSE MP 14.97N 145.63E ELEV. 74 FT 346 AM CHST THU OCT 16 2025 DATE THU 10/16/25 FRI 10/17/25 SAT 10/18/25 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 87 78 87 TEMP 78 79 83 87 86 84 82 80 79 79 84 87 87 85 82 80 79 79 83 87 86 DEWPT 78 78 78 78 78 79 79 79 79 79 78 78 78 79 79 79 79 79 79 79 79 RH 100 97 85 75 77 85 91 97100100 82 75 75 82 91 97100100 88 77 80 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 9 14 14 16 14 12 10 10 13 16 13 13 13 11 10 10 12 14 14 14 CLOUDS B2 B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC B1 B1 B1 B1 POP 12HR 40 40 20 20 20 QPF 12HR 0.20 0.13 0.07 0.08 0.11 RAIN SHWRS C C C C C S S S S S S S S S S S S S S S S TSTMS S S S S S S S S S WIND CHILL -120-120-120-120-120-120-120-120-120-120-120-120-120-120-120-120-120-120-120-120-120 MIN CHILL -120 -120 -120 -120 -120 -120 -120 -120 -120 -120 -120 DATE SUN 10/19/25 MON 10/20/25 TUE 10/21/25 WED 10/22/25 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 87 78 87 80 86 TEMP 82 79 83 86 82 79 83 86 82 79 83 86 83 81 84 86 DEWPT 79 79 79 79 79 79 78 78 79 79 79 78 79 79 78 78 PWIND DIR E E E E E E SE SE WIND CHAR GN GN GN GN GN GN GN GN AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 20 20 20 30 30 30 30 40 RAIN SHWRS S S S S S S C C C S C C C C C C TSTMS S S S S S S S S S S S S S S S S $$ MPZ003-160600- SAIPAN INTERNATIONAL AIRPORT-OBYAN MP 15.11N 145.72E ELEV. 215 FT 346 AM CHST THU OCT 16 2025 DATE THU 10/16/25 FRI 10/17/25 SAT 10/18/25 CHST3HRLY 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MAX/MIN 88 78 88 78 88 TEMP 78 79 84 88 87 85 83 80 79 79 84 88 87 85 83 80 79 79 84 88 87 DEWPT 78 78 78 78 78 79 79 79 79 79 78 78 78 79 79 79 79 79 79 79 79 RH 100 97 82 72 75 82 88 97100100 82 72 75 82 88 97100100 85 75 77 WIND DIR E E E E E E E E E E E E E E E E E E E E E WIND SPD 8 10 13 14 14 14 12 11 10 13 16 13 13 13 11 10 10 12 14 14 14 CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC B1 B1 B1 B1 POP 12HR 40 40 20 20 20 QPF 12HR 0.18 0.12 0.07 0.09 0.11 RAIN SHWRS C C C C C S S S S S S S S S S S S S S S S TSTMS S S S S S S S S S WIND CHILL -120-120-120-120-120-120-120-120-120-120-120-120-120-120-120-120-120-120-120-120-120 MIN CHILL -120 -120 -120 -120 -120 -120 -120 -120 -120 -120 -120 DATE SUN 10/19/25 MON 10/20/25 TUE 10/21/25 WED 10/22/25 CHST6HRLY 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MIN/MAX 78 88 78 88 78 88 80 86 TEMP 83 79 84 87 83 79 84 87 83 79 84 87 84 81 84 86 DEWPT 79 79 79 79 79 79 79 78 79 79 79 78 79 79 78 78 PWIND DIR E E E E E E SE SE WIND CHAR GN GN GN GN GN GN GN GN AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 20 20 20 30 30 30 30 40 RAIN SHWRS S S S S S S C C C S C C C C C C TSTMS S S S S S S S S S S S S S S S $$