Point Forecast Matrices
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
239 FOMY50 PGUM 101750 PFMGUM POINT FORECAST MATRICES NATIONAL WEATHER SERVICE TIYAN GU 349 AM CHST MON AUG 11 2025 GUZ001-110600- GUAM INTERNATIONAL AIRPORT-TIYAN GU 13.48N 144.79E ELEV. 248 FT 349 AM CHST MON AUG 11 2025 DATE MON 08/11/25 TUE 08/12/25 WED 08/13/25 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 88 77 88 TEMP 78 78 84 88 87 85 82 79 78 78 84 88 87 85 82 79 78 78 84 88 87 DEWPT 77 77 76 76 76 76 77 77 77 78 78 78 78 78 78 78 78 78 78 78 78 RH 97 97 77 68 70 75 85 94 97100 82 72 75 80 88 97100100 82 72 75 WIND DIR SE E E E E E E E SE SE SE SE SE E E SE SE E E E E WIND SPD 2 4 4 3 1 3 5 4 2 4 6 4 3 2 2 2 1 2 3 3 2 CLOUDS SC B1 B1 B1 B1 SC SC SC SC SC SC B1 B1 SC SC SC SC SC SC B1 B1 POP 12HR 30 30 30 30 30 QPF 12HR 0.10 0.12 0.06 0.04 0.05 RAIN SHWRS S C C C C S S S S S S C C S S S S S S C C TSTMS S S S S S S S S S S S S S S S HEAT INDEX 92 99 98 95 90 84 94100100 96 92 84 94101101 MAX HEAT 92 99 97 88 94 100 99 90 94 101 DATE THU 08/14/25 FRI 08/15/25 SAT 08/16/25 SUN 08/17/25 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 88 77 88 77 88 78 88 TEMP 82 77 84 87 82 77 84 87 82 77 84 87 83 79 84 87 DEWPT 78 77 77 77 77 77 76 76 76 76 77 77 77 77 78 78 PWIND DIR E E E E E E E E WIND CHAR LT LT LT LT LT LT GN GN AVG CLOUDS B1 SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 POP 12HR 30 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 TSTMS S S S S S $$ MPZ001-110600- ROTA INTERNATIONAL AIRPORT-SINAPALU MP 14.17N 145.23E ELEV. 592 FT 349 AM CHST MON AUG 11 2025 DATE MON 08/11/25 TUE 08/12/25 WED 08/13/25 CHST3HRLY 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MAX/MIN 87 76 87 76 87 TEMP 77 77 83 87 86 84 81 78 77 77 83 87 86 84 81 78 77 77 83 87 86 DEWPT 77 76 76 76 76 77 77 77 77 77 78 78 78 78 78 78 77 77 78 78 78 RH 100 97 80 70 72 80 88 97100100 85 75 77 82 91100100100 85 75 77 WIND DIR E E E E E E E SE SE SE SE SE SE SE SE SE SE SE E E E WIND SPD 4 4 5 4 3 4 5 5 4 3 5 4 3 3 3 2 2 2 4 3 2 CLOUDS B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 30 30 20 20 20 QPF 12HR 0.24 0.09 0.04 0.03 0.06 RAIN SHWRS C C C C C S S S S S S S S S S S S S S S S TSTMS S S S S S S S S S S S S S HEAT INDEX 90 97 96 93 88 91 99 98 94 89 92100 99 MAX HEAT 90 97 95 86 91 99 97 88 92 100 DATE THU 08/14/25 FRI 08/15/25 SAT 08/16/25 SUN 08/17/25 CHST6HRLY 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MIN/MAX 78 87 78 87 78 87 78 87 TEMP 82 78 83 86 82 78 83 86 82 78 83 86 82 79 83 86 DEWPT 79 78 78 78 78 78 76 76 76 76 77 77 77 77 78 78 PWIND DIR E E E E E E E E WIND CHAR LT LT LT LT LT GN GN GN AVG CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 POP 12HR 20 20 20 20 20 20 20 20 RAIN SHWRS S S S S S S S S S S S S S S S S TSTMS S S S S $$ MPZ002-110600- TINIAN-SAN JOSE MP 14.97N 145.63E ELEV. 74 FT 349 AM CHST MON AUG 11 2025 DATE MON 08/11/25 TUE 08/12/25 WED 08/13/25 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 79 79 84 87 87 85 82 80 79 79 84 87 87 85 82 80 79 79 84 87 87 DEWPT 77 77 77 76 76 77 77 77 77 78 77 78 78 78 78 78 78 78 78 78 78 RH 94 94 80 70 70 77 85 91 94 97 80 75 75 80 88 94 97 97 82 75 75 WIND DIR E E E E E E E E SE SE SE SE SE E E SE SE SE E E E WIND SPD 4 5 6 6 6 6 6 6 5 4 5 4 3 3 3 3 2 3 4 3 3 CLOUDS B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 30 30 20 20 20 QPF 12HR 0.16 0.11 0.08 0.08 0.05 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 S S S S HEAT INDEX 93 98 98 95 91 86 94100 99 96 92 88 94100100 MAX HEAT 93 98 97 89 94 100 98 91 94 100 DATE THU 08/14/25 FRI 08/15/25 SAT 08/16/25 SUN 08/17/25 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 76 88 76 88 76 88 78 88 TEMP 81 77 83 87 81 77 83 87 81 77 83 87 82 79 84 87 DEWPT 78 77 76 76 76 76 76 76 77 77 77 77 77 77 78 78 PWIND DIR E E E E E E E E WIND CHAR LT LT LT LT LT GN GN GN AVG CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 POP 12HR 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 TSTMS S S S S $$ MPZ003-110600- SAIPAN INTERNATIONAL AIRPORT-OBYAN MP 15.11N 145.72E ELEV. 215 FT 349 AM CHST MON AUG 11 2025 DATE MON 08/11/25 TUE 08/12/25 WED 08/13/25 CHST3HRLY 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MAX/MIN 88 78 88 78 88 TEMP 79 79 84 88 87 85 83 80 79 79 84 88 87 85 83 80 79 79 84 88 87 DEWPT 77 77 77 77 77 77 77 77 77 78 78 78 78 78 78 78 78 78 78 78 78 RH 94 94 80 70 72 77 82 91 94 97 82 72 75 80 85 94 97 97 82 72 75 WIND DIR E E E E E E E E SE SE SE SE SE E E SE SE SE E E E WIND SPD 5 5 6 6 8 8 6 6 5 4 4 4 3 3 4 3 2 3 4 3 3 CLOUDS B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 30 30 20 20 20 QPF 12HR 0.19 0.12 0.08 0.08 0.05 RAIN SHWRS C C C C C S S S S S S S S S S S S S S S S TSTMS S S S S S S S S S S S S S HEAT INDEX 93 99 98 96 91 87 94101100 97 92 88 95101100 MAX HEAT 93 99 98 90 94 101 99 91 95 101 DATE THU 08/14/25 FRI 08/15/25 SAT 08/16/25 SUN 08/17/25 CHST6HRLY 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MIN/MAX 76 88 76 88 76 88 78 88 TEMP 81 77 83 87 81 77 83 87 81 77 83 87 83 79 84 87 DEWPT 78 77 76 76 76 76 77 77 77 77 77 77 77 77 78 78 PWIND DIR E E E E E E E E WIND CHAR LT LT LT LT LT GN GN GN AVG CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 POP 12HR 20 20 20 20 20 20 20 20 RAIN SHWRS S S S S S S S S S S S S S S S S TSTMS S S S S $$