Point Forecast Matrices
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
879 FOMY50 PGUM 280550 PFMGUM POINT FORECAST MATRICES NATIONAL WEATHER SERVICE TIYAN GU 346 PM CHST SAT JUN 28 2025 GUZ001-281800- GUAM INTERNATIONAL AIRPORT-TIYAN GU 13.48N 144.79E ELEV. 248 FT 346 PM CHST SAT JUN 28 2025 DATE SAT 06/28/25 SUN 06/29/25 MON 06/30/25 TUE 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 86 77 88 77 TEMP 85 83 81 79 78 78 82 86 85 83 81 79 78 78 84 88 87 85 82 79 78 DEWPT 76 76 76 76 76 76 76 77 77 77 77 77 77 77 77 77 77 77 77 78 77 RH 75 80 85 91 94 94 82 75 77 82 88 94 97 97 80 70 72 77 85 97 97 WIND DIR S SW W SW SW SW SW W W W S SW S S S S SW SW S S S WIND SPD 6 5 5 2 6 3 4 10 10 5 6 4 6 9 9 9 9 8 5 4 4 CLOUDS OV B2 B2 B2 B2 OV OV OV OV OV OV OV OV B2 B2 B2 B2 B2 B2 B2 B2 POP 12HR 60 70 70 70 50 QPF 12HR 0.40 0.99 1.25 0.81 0.77 RAIN SHWRS L C C C C L L L L L L L L 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 95 92 88 90 96 96 93 89 93100 99 95 90 84 MAX HEAT 95 94 86 90 96 95 87 93 100 98 89 FLOOD A A A A A A A A A A A A A DATE 07/01/25 WED 07/02/25 THU 07/03/25 FRI 07/04/25 SAT 07/05/25 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 78 88 78 88 76 87 TEMP 83 86 82 79 84 87 83 79 84 87 83 79 84 87 82 77 83 86 DEWPT 77 77 78 78 78 78 78 78 78 78 78 78 78 78 78 77 78 78 PWIND DIR SW SW SW S S SW SW S S WIND CHAR GN GN GN LT GN GN GN LT GN AVG CLOUDS B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 50 40 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 $$ MPZ001-281800- ROTA INTERNATIONAL AIRPORT-SINAPALU MP 14.17N 145.23E ELEV. 592 FT 346 PM CHST SAT JUN 28 2025 DATE SAT 06/28/25 SUN 06/29/25 MON 06/30/25 TUE CHST3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MIN/MAX 77 86 78 86 78 TEMP 85 83 81 79 78 78 82 86 85 84 82 80 78 79 83 86 85 84 82 80 78 DEWPT 76 76 76 76 76 76 76 77 76 77 77 77 77 77 77 77 77 77 77 78 77 RH 75 80 85 91 94 94 82 75 75 80 85 91 97 94 82 75 77 80 85 94 97 WIND DIR W SW W SW SW W SW NW E SE SW S SW S S S SW SW S S S WIND SPD 1 4 9 6 5 6 4 2 4 8 8 11 9 9 13 14 13 12 9 8 10 CLOUDS B2 B2 B2 B2 B2 OV OV OV OV OV OV OV OV B2 B2 B2 B2 B2 B2 B2 B2 POP 12HR 60 70 70 70 50 QPF 12HR 0.33 0.94 1.83 1.00 0.66 RAIN SHWRS L C C C C L L L L L L L L C C C C C C C C TSTMS S S S S S S S S S S S S S S S S S S S S S HEAT INDEX 93 92 88 90 96 95 93 89 85 92 97 96 93 90 85 MAX HEAT 93 93 86 90 96 95 88 92 97 95 89 FLOOD A A A A A A A A A A A A A DATE 07/01/25 WED 07/02/25 THU 07/03/25 FRI 07/04/25 SAT 07/05/25 CHST6HRLY 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MAX/MIN 86 78 87 78 87 77 87 77 86 TEMP 83 85 82 78 83 86 82 79 83 86 82 78 83 86 82 78 82 86 DEWPT 77 77 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 PWIND DIR SW SW SW SW S SW S S S WIND CHAR GN GN GN GN GN GN GN GN GN AVG CLOUDS B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 50 40 30 30 30 30 30 30 30 RAIN SHWRS C C C C C C C C C C C C C C C C C C TSTMS S S S $$ MPZ002-281800- TINIAN-SAN JOSE MP 14.97N 145.63E ELEV. 74 FT 346 PM CHST SAT JUN 28 2025 DATE SAT 06/28/25 SUN 06/29/25 MON 06/30/25 TUE 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 86 78 86 78 TEMP 85 84 82 80 78 79 83 86 85 84 82 80 78 79 83 86 85 84 82 80 78 DEWPT 76 76 76 76 76 76 77 77 77 77 77 77 77 77 77 77 77 77 77 78 78 RH 75 77 82 88 94 91 82 75 77 80 85 91 97 94 82 75 77 80 85 94100 WIND DIR SE SE SW N N N SW SE W SW SW S S S S S SW S S S S WIND SPD 6 3 3 2 2 4 8 3 8 8 8 8 6 9 11 12 13 9 10 10 9 CLOUDS B1 B1 B1 B1 B1 B2 B2 B2 B2 OV OV OV OV B2 B2 B2 B2 B2 B2 B2 B2 POP 12HR 40 60 60 60 50 QPF 12HR 0.34 0.62 0.84 0.49 0.51 RAIN SHWRS C C C C C L L L L L L L L 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 HEAT INDEX 96 92 89 85 91 96 96 93 89 85 92 97 96 94 90 85 MAX HEAT 96 95 87 91 96 95 88 92 97 95 89 DATE 07/01/25 WED 07/02/25 THU 07/03/25 FRI 07/04/25 SAT 07/05/25 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 78 87 78 88 78 88 78 87 TEMP 83 85 82 78 83 86 82 79 84 87 83 79 84 87 83 79 83 86 DEWPT 77 77 78 78 78 78 79 79 78 78 78 78 78 78 78 78 78 78 PWIND DIR S SW SW SW SW SW S S S WIND CHAR GN GN GN GN GN GN GN GN GN AVG CLOUDS B2 B2 B2 B1 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 50 40 40 40 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 $$ MPZ003-281800- SAIPAN INTERNATIONAL AIRPORT-OBYAN MP 15.11N 145.72E ELEV. 215 FT 346 PM CHST SAT JUN 28 2025 DATE SAT 06/28/25 SUN 06/29/25 MON 06/30/25 TUE CHST3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MIN/MAX 78 86 78 86 78 TEMP 85 84 82 80 78 79 83 86 85 84 82 80 78 79 83 86 85 84 82 80 78 DEWPT 76 76 76 76 76 76 77 77 77 77 77 77 77 77 77 77 77 77 77 78 78 RH 75 77 82 88 94 91 82 75 77 80 85 91 97 94 82 75 77 80 85 94100 WIND DIR SE SE SE NE N N NE S SW SW S S S S S S S S S S S WIND SPD 9 5 2 3 1 4 6 5 6 8 6 6 6 8 11 11 12 10 10 8 8 CLOUDS B1 B1 B1 B1 B1 B2 B2 B2 B2 OV OV OV OV B2 B2 B2 B2 B2 B2 B2 B2 POP 12HR 40 60 60 60 50 QPF 12HR 0.24 0.24 0.62 0.38 0.49 RAIN SHWRS C C C C C L L L L L L L L C C C C C C C C TSTMS S S S S S S S S S S S S S S S S S S S S HEAT INDEX 95 92 89 85 91 96 96 93 89 85 92 97 96 94 90 85 MAX HEAT 95 95 87 91 96 95 88 92 97 96 89 DATE 07/01/25 WED 07/02/25 THU 07/03/25 FRI 07/04/25 SAT 07/05/25 CHST6HRLY 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MAX/MIN 86 78 87 78 88 78 88 78 87 TEMP 83 85 82 78 83 86 82 79 84 87 83 79 84 87 83 79 83 87 DEWPT 77 77 78 78 78 78 79 79 78 78 78 78 78 78 78 78 78 78 PWIND DIR S SW SW SW SW SW S S S WIND CHAR GN GN GN GN GN GN GN GN GN AVG CLOUDS B2 B2 B2 B1 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 50 40 40 40 30 30 30 30 30 RAIN SHWRS C C C C C C C C C C C C C C C C C C TSTMS S S S $$