Point Forecast Matrices
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
400 FOMY50 PGUM 040530 PFMGUM POINT FORECAST MATRICES NATIONAL WEATHER SERVICE TIYAN GU 326 PM CHST MON AUG 4 2025 GUZ001-041800- GUAM INTERNATIONAL AIRPORT-TIYAN GU 13.48N 144.79E ELEV. 248 FT 326 PM CHST MON AUG 4 2025 DATE MON 08/04/25 TUE 08/05/25 WED 08/06/25 THU 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 85 77 86 77 TEMP 87 85 82 79 78 78 82 85 84 83 81 79 78 78 83 86 85 84 81 79 77 DEWPT 77 77 78 78 78 78 79 79 79 79 79 79 78 78 78 78 78 78 78 78 77 RH 72 77 88 97100100 91 82 85 88 94100100100 85 77 80 82 91 97100 WIND DIR SE E SE SE E SE SE SE E NE NE E E SE SE SE S S S S SW WIND SPD 8 5 5 4 3 1 4 3 4 3 4 3 3 3 9 11 10 6 4 3 3 CLOUDS B1 SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 30 30 30 30 30 QPF 12HR 0.16 0.21 0.22 0.16 0.18 RAIN SHWRS C S S C C C C C C 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 S S S S S S S S HEAT INDEX 98 95 91 85 92 97 96 93 90 92 99 98 94 90 MAX HEAT 99 97 89 92 97 95 88 92 99 97 88 DATE 08/07/25 FRI 08/08/25 SAT 08/09/25 SUN 08/10/25 MON 08/11/25 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 77 88 77 88 77 88 77 88 TEMP 83 86 81 78 84 87 82 78 83 87 82 78 83 87 82 78 83 87 DEWPT 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 76 76 PWIND DIR S S SE E E E E E SE WIND CHAR LT LT LT LT LT LT LT LT LT AVG CLOUDS B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 30 30 20 20 20 20 20 20 20 RAIN SHWRS C C C 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 S S $$ MPZ001-041800- ROTA INTERNATIONAL AIRPORT-SINAPALU MP 14.17N 145.23E ELEV. 592 FT 326 PM CHST MON AUG 4 2025 DATE MON 08/04/25 TUE 08/05/25 WED 08/06/25 THU CHST3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MIN/MAX 77 84 76 85 77 TEMP 85 83 81 78 77 77 81 84 83 82 80 78 76 77 81 84 84 82 80 78 77 DEWPT 77 78 78 78 77 77 79 79 79 79 79 78 76 77 78 78 78 78 78 78 77 RH 77 85 91100100100 94 85 88 91 97100100100 91 82 82 88 94100100 WIND DIR E E E E SE E SE SE E E NE E E SE S SE S SE S S S WIND SPD 9 8 6 8 6 5 6 4 6 5 4 6 5 8 8 11 10 9 6 5 4 CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 40 30 30 30 30 QPF 12HR 0.20 0.28 0.19 0.18 0.22 RAIN SHWRS C C C C C C C C C C C C C C C C C C C C C TSTMS S S S S S S S S S S S S S S S S S S S S HEAT INDEX 96 93 89 90 96 95 92 85 90 96 95 92 88 MAX HEAT 96 95 86 90 96 94 90 96 94 85 DATE 08/07/25 FRI 08/08/25 SAT 08/09/25 SUN 08/10/25 MON 08/11/25 CHST6HRLY 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MAX/MIN 85 77 86 76 86 76 86 76 86 TEMP 82 84 80 77 82 85 81 77 82 85 81 77 82 85 81 77 82 85 DEWPT 78 78 78 77 78 78 78 77 78 78 78 77 78 78 78 77 76 76 PWIND DIR S S SE E E E E E SE WIND CHAR LT LT LT LT LT LT LT LT LT AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC POP 12HR 30 30 30 20 20 20 20 20 20 RAIN SHWRS C C C C C S S S S S S S S S S S S S TSTMS S S S S S S S S S S S S S $$ MPZ002-041800- TINIAN-SAN JOSE MP 14.97N 145.63E ELEV. 74 FT 326 PM CHST MON AUG 4 2025 DATE MON 08/04/25 TUE 08/05/25 WED 08/06/25 THU 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 79 86 79 86 79 TEMP 86 85 83 81 80 80 83 85 85 84 82 80 79 80 83 85 85 84 82 80 79 DEWPT 78 78 78 78 78 79 79 79 79 79 79 79 78 78 78 78 78 78 78 78 78 RH 77 80 85 91 94 97 88 82 82 85 91 97 97 94 85 80 80 82 88 94 97 WIND DIR E E SE E E E E SE E E E E E SE S SE SE SE SE S S WIND SPD 12 11 11 10 8 9 9 8 8 8 5 9 6 8 6 9 8 6 4 3 4 CLOUDS B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 40 30 30 30 30 QPF 12HR 0.31 0.22 0.28 0.22 0.21 RAIN SHWRS C C C C C C C C C 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 S S S S S S S S HEAT INDEX 98 96 93 89 86 89 94 98 97 95 92 89 85 86 93 97 96 94 91 88 MAX HEAT 98 97 92 94 98 97 91 93 97 96 90 DATE 08/07/25 FRI 08/08/25 SAT 08/09/25 SUN 08/10/25 MON 08/11/25 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 79 86 79 87 79 87 79 87 TEMP 83 85 82 79 83 86 82 79 84 86 83 79 84 86 83 79 84 86 DEWPT 78 77 78 78 78 77 78 78 78 78 78 78 78 78 78 78 76 76 PWIND DIR SW SW S SE E E E E SE WIND CHAR LT LT LT LT LT LT LT LT LT AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC POP 12HR 30 30 30 20 20 20 20 20 20 RAIN SHWRS C C C C C S S S S S S S S S S S S S TSTMS S S S S S S S S S S S $$ MPZ003-041800- SAIPAN INTERNATIONAL AIRPORT-OBYAN MP 15.11N 145.72E ELEV. 215 FT 326 PM CHST MON AUG 4 2025 DATE MON 08/04/25 TUE 08/05/25 WED 08/06/25 THU CHST3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MIN/MAX 79 86 78 86 78 TEMP 86 85 83 81 79 80 83 86 86 84 82 80 79 79 83 86 85 84 82 80 79 DEWPT 78 78 78 78 78 79 79 79 79 79 79 79 78 78 78 78 78 78 78 78 78 RH 77 80 85 91 97 97 88 80 80 85 91 97 97 97 85 77 80 82 88 94 97 WIND DIR E E SE SE E E E SE E E NE E E SE SE S SE SE SE S S WIND SPD 12 11 10 9 9 9 8 8 6 9 3 8 8 8 5 9 8 6 4 3 4 CLOUDS B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 40 30 30 30 30 QPF 12HR 0.35 0.25 0.28 0.21 0.21 RAIN SHWRS C C C C C C C C C C C C C C C C C C C C C TSTMS S S S S S S S S S S S S S S S S S S S S HEAT INDEX 99 96 93 89 84 85 94 99 99 96 92 88 84 93 98 97 94 91 86 MAX HEAT 99 98 91 94 99 98 91 93 98 96 89 DATE 08/07/25 FRI 08/08/25 SAT 08/09/25 SUN 08/10/25 MON 08/11/25 CHST6HRLY 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MAX/MIN 87 78 87 79 87 79 87 79 87 TEMP 83 86 82 79 83 86 82 79 84 86 82 79 84 86 82 79 84 86 DEWPT 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 76 76 PWIND DIR SW SW S SE E E E E SE WIND CHAR LT LT LT LT LT LT LT LT LT AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC POP 12HR 30 30 30 20 20 20 20 20 20 RAIN SHWRS C C C C C S S S S S S S S S S S S S TSTMS S S S S S S S S S S S $$