Point Forecast Matrices
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
795 FOMY50 PGUM 031730 PFMGUM POINT FORECAST MATRICES NATIONAL WEATHER SERVICE TIYAN GU 322 AM CHST MON AUG 4 2025 GUZ001-040600- GUAM INTERNATIONAL AIRPORT-TIYAN GU 13.48N 144.79E ELEV. 248 FT 322 AM CHST MON AUG 4 2025 DATE MON 08/04/25 TUE 08/05/25 WED 08/06/25 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 77 85 77 86 TEMP 78 78 83 87 87 85 82 79 78 78 82 85 84 83 81 79 78 78 83 86 85 DEWPT 78 77 77 77 77 77 78 78 78 78 79 79 79 79 79 79 78 78 78 78 78 RH 100 97 82 72 72 77 88 97100100 91 82 85 88 94100100100 85 77 80 WIND DIR SE E E SE SE SE SE SE SE E E E E E E E SE SE S S S WIND SPD 6 5 9 8 6 6 5 3 3 3 3 3 3 3 4 4 3 5 8 9 8 CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 30 20 30 30 30 QPF 12HR 0.14 0.14 0.30 0.26 0.20 RAIN SHWRS C 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 S S S S S HEAT INDEX 93 99 98 95 91 85 92 97 96 93 90 92 99 98 MAX HEAT 93 99 97 89 92 97 95 88 92 99 DATE THU 08/07/25 FRI 08/08/25 SAT 08/09/25 SUN 08/10/25 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 77 87 77 87 77 87 77 87 TEMP 81 77 83 86 81 78 83 87 82 78 83 86 81 78 83 86 DEWPT 78 77 78 78 78 78 78 78 78 78 78 78 78 78 78 78 PWIND DIR S S SE SE E E E E WIND CHAR LT LT LT LT LT LT LT LT AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC B1 B1 B1 B1 POP 12HR 30 30 20 20 20 20 20 30 RAIN SHWRS C C C S S S S S S S S S S S C C TSTMS S S S S S S $$ MPZ001-040600- ROTA INTERNATIONAL AIRPORT-SINAPALU MP 14.17N 145.23E ELEV. 592 FT 322 AM CHST MON AUG 4 2025 DATE MON 08/04/25 TUE 08/05/25 WED 08/06/25 CHST3HRLY 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MAX/MIN 86 77 84 76 85 TEMP 77 78 82 85 85 83 81 78 77 77 81 84 83 82 80 78 76 77 81 84 84 DEWPT 77 77 77 77 77 78 78 78 77 77 79 79 79 79 79 78 76 77 78 78 78 RH 100 97 85 77 77 85 91100100100 94 85 88 91 97100100100 91 82 82 WIND DIR E E E E E SE SE SE E E E E E E E SE SE SE S S S WIND SPD 8 8 8 8 8 6 5 4 4 5 5 3 4 5 8 6 5 6 10 10 9 CLOUDS B1 SC SC SC SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 30 20 30 30 30 QPF 12HR 0.11 0.06 0.32 0.30 0.25 RAIN SHWRS C S S S S S S S S C C C C C C C C C C C C TSTMS S S S S S S S S S S S S HEAT INDEX 90 97 96 93 89 90 96 95 92 85 90 96 95 MAX HEAT 90 97 95 86 90 96 94 90 96 DATE THU 08/07/25 FRI 08/08/25 SAT 08/09/25 SUN 08/10/25 CHST6HRLY 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MIN/MAX 77 85 77 86 76 85 76 85 TEMP 80 77 82 84 80 77 82 85 81 77 81 84 80 77 81 84 DEWPT 78 77 78 78 78 77 78 78 78 77 78 78 78 77 78 78 PWIND DIR S S S SE E E E E WIND CHAR LT LT LT LT LT LT LT LT AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC B1 B1 B1 B1 POP 12HR 30 30 30 30 20 20 20 30 RAIN SHWRS C C C C C C C S S S S S S S C C TSTMS S S S S S S S $$ MPZ002-040600- TINIAN-SAN JOSE MP 14.97N 145.63E ELEV. 74 FT 322 AM CHST MON AUG 4 2025 DATE MON 08/04/25 TUE 08/05/25 WED 08/06/25 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 79 86 79 86 TEMP 79 80 83 86 86 85 83 81 80 80 83 85 85 84 82 80 79 80 83 85 85 DEWPT 78 78 78 78 78 78 78 78 78 79 79 79 79 79 79 79 78 78 78 78 78 RH 97 94 85 77 77 80 85 91 94 97 88 82 82 85 91 97 97 94 85 80 80 WIND DIR E E E E E SE SE SE E E E E E E E SE SE SE SE S S WIND SPD 9 10 12 11 10 10 10 6 6 8 6 5 5 6 8 8 6 9 11 10 8 CLOUDS B1 SC SC SC SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 30 20 30 30 30 QPF 12HR 0.07 0.07 0.32 0.29 0.32 RAIN SHWRS C 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 S S S S HEAT INDEX 85 93 98 98 96 93 89 86 89 94 98 97 95 92 89 85 86 93 97 96 MAX HEAT 85 93 98 97 92 94 98 97 91 93 97 DATE THU 08/07/25 FRI 08/08/25 SAT 08/09/25 SUN 08/10/25 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 79 86 79 86 79 86 79 86 TEMP 82 79 83 85 82 79 83 86 82 79 83 85 82 79 83 85 DEWPT 78 78 78 77 78 78 78 77 78 78 78 78 78 78 78 78 PWIND DIR S S S SE E E E E WIND CHAR LT LT LT LT LT LT LT LT AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 SC B1 B1 B1 B1 B1 B1 POP 12HR 30 30 30 30 30 20 20 30 RAIN SHWRS C C C C C C C C C S S S S S C C TSTMS S S S S S S S S S S $$ MPZ003-040600- SAIPAN INTERNATIONAL AIRPORT-OBYAN MP 15.11N 145.72E ELEV. 215 FT 322 AM CHST MON AUG 4 2025 DATE MON 08/04/25 TUE 08/05/25 WED 08/06/25 CHST3HRLY 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MAX/MIN 87 79 86 78 86 TEMP 79 79 84 87 86 85 83 81 79 80 83 86 86 84 82 80 79 79 83 86 85 DEWPT 78 78 78 78 78 78 78 78 78 79 79 79 79 79 79 79 78 78 78 78 78 RH 97 97 82 75 77 80 85 91 97 97 88 80 80 85 91 97 97 97 85 77 80 WIND DIR E E E E E SE SE SE E E E E E E E SE SE SE SE S S WIND SPD 9 10 13 12 11 10 10 6 6 8 8 6 6 8 8 8 6 9 11 10 8 CLOUDS B1 SC SC SC SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 30 20 30 30 30 QPF 12HR 0.06 0.09 0.32 0.28 0.33 RAIN SHWRS C S S S S S S S S C C C C C C C C C C C C TSTMS S S S S S S S S S S S S HEAT INDEX 84 94 99 99 96 93 89 84 85 94 99 99 96 92 88 84 93 98 97 MAX HEAT 84 94 99 98 91 94 99 98 91 93 98 DATE THU 08/07/25 FRI 08/08/25 SAT 08/09/25 SUN 08/10/25 CHST6HRLY 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MIN/MAX 78 87 78 87 79 86 79 86 TEMP 82 79 83 86 82 79 83 86 82 79 83 85 82 79 83 85 DEWPT 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 PWIND DIR S S S SE E E E E WIND CHAR LT LT LT LT LT LT LT GN AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 SC B1 B1 B1 B1 B1 B1 POP 12HR 30 30 30 30 30 20 20 30 RAIN SHWRS C C C C C C C C C S S S S S C C TSTMS S S S S S S S S S S S $$