Point Forecast Matrices
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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860 FOMY50 PGUM 020510 PFMGUM POINT FORECAST MATRICES NATIONAL WEATHER SERVICE TIYAN GU 301 PM CHST THU OCT 2 2025 GUZ001-021800- GUAM INTERNATIONAL AIRPORT-TIYAN GU 13.48N 144.79E ELEV. 248 FT 301 PM CHST THU OCT 2 2025 DATE THU 10/02/25 FRI 10/03/25 SAT 10/04/25 SUN 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 76 88 76 87 76 TEMP 87 85 82 79 77 78 84 88 87 85 82 79 77 77 83 87 86 84 81 78 77 DEWPT 78 78 78 78 77 78 78 78 78 78 78 78 77 77 78 77 77 78 78 78 77 RH 75 80 88 97100100 82 72 75 80 88 97100100 85 72 75 82 91100100 WIND DIR SE E E E E SE SE SE S SE S S SW SW W W W NW W SW W WIND SPD 6 4 3 2 2 3 5 5 3 3 2 2 3 2 2 3 3 2 1 1 2 CLOUDS SC SC SC SC SC SC B1 B1 SC SC SC SC SC SC B1 B1 SC SC SC SC SC POP 12HR 20 30 20 30 20 QPF 12HR 0.05 0.04 0.06 0.10 0.12 RAIN SHWRS S S S S S S C C S S S S S S C C S S S S S TSTMS S S S S S S S S S S S S S S S S HEAT INDEX 99 96 90 94101100 96 91 92 99 98 94 90 MAX HEAT 100 98 88 94 101 99 89 92 99 97 88 DATE 10/05/25 MON 10/06/25 TUE 10/07/25 WED 10/08/25 THU 10/09/25 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 76 87 76 87 76 88 76 88 TEMP 83 86 81 77 83 86 81 77 83 86 81 77 83 87 82 77 83 87 DEWPT 78 77 78 77 77 78 78 77 78 78 76 76 76 76 76 76 76 76 PWIND DIR W W SW S SW SW S SE E WIND CHAR LT LT LT LT LT LT LT LT LT AVG CLOUDS B1 B1 B1 SC SC SC B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC POP 12HR 30 30 20 30 30 30 30 20 20 RAIN SHWRS C C C S S S C C C C C C C S S S S S TSTMS S S S S S S S S S S S S S S S S S S $$ MPZ001-021800- ROTA INTERNATIONAL AIRPORT-SINAPALU MP 14.17N 145.23E ELEV. 592 FT 301 PM CHST THU OCT 2 2025 DATE THU 10/02/25 FRI 10/03/25 SAT 10/04/25 SUN CHST3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MIN/MAX 75 87 75 86 75 TEMP 85 83 80 77 76 76 82 87 86 84 81 77 76 76 82 86 85 83 80 77 76 DEWPT 78 78 78 77 76 76 78 78 78 78 78 77 76 76 78 78 78 78 78 77 76 RH 80 85 94100100100 88 75 77 82 91100100100 88 77 80 85 94100100 WIND DIR E E E E E SE SE S SE S S S S SW SW W W W W SW W WIND SPD 5 4 3 3 2 3 5 3 2 2 2 2 2 2 3 4 4 2 1 2 2 CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 20 20 20 20 20 QPF 12HR 0.04 0.03 0.03 0.08 0.11 RAIN SHWRS S S S S S S S S S S S S S S S S S S S S S TSTMS S S S S S S S S S S S S HEAT INDEX 97 93 88 92100 98 94 89 90 97 96 92 87 MAX HEAT 98 96 92 100 97 85 90 97 95 DATE 10/05/25 MON 10/06/25 TUE 10/07/25 WED 10/08/25 THU 10/09/25 CHST6HRLY 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MAX/MIN 86 75 86 75 86 75 87 75 87 TEMP 82 85 80 76 82 85 80 76 82 85 80 76 82 86 81 76 82 86 DEWPT 78 78 78 76 78 78 78 76 78 78 76 76 76 76 77 76 76 76 PWIND DIR W W S S S S S SE E WIND CHAR LT LT LT LT LT LT LT LT LT AVG CLOUDS B1 B1 B1 SC SC SC B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC POP 12HR 30 30 20 30 30 30 30 20 20 RAIN SHWRS C C C S S S C C C C C C C S S S S S TSTMS S S S S S S S S S S S S S S S S S S $$ MPZ002-021800- TINIAN-SAN JOSE MP 14.97N 145.63E ELEV. 74 FT 301 PM CHST THU OCT 2 2025 DATE THU 10/02/25 FRI 10/03/25 SAT 10/04/25 SUN 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 87 78 86 78 TEMP 85 84 81 79 78 78 83 87 86 84 82 80 79 79 83 86 86 84 82 80 78 DEWPT 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 77 78 78 78 78 RH 80 82 91 97100100 85 75 77 82 88 94 97 97 85 77 75 82 88 94100 WIND DIR E E E NE E E SE S S SE S S S SW SW W W NW NW SW SW WIND SPD 6 5 5 3 3 3 4 5 4 1 2 2 2 2 4 4 3 2 0 1 1 CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 20 20 20 20 20 QPF 12HR 0.04 0.04 0.05 0.07 0.06 RAIN SHWRS S S S S S 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 HEAT INDEX 97 94 90 93100 99 96 92 86 93 98 97 94 91 86 MAX HEAT 98 96 89 93 100 98 90 93 98 96 89 DATE 10/05/25 MON 10/06/25 TUE 10/07/25 WED 10/08/25 THU 10/09/25 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 88 78 88 78 88 78 88 TEMP 83 86 82 78 84 87 83 79 84 87 83 79 84 87 83 79 84 87 DEWPT 78 77 78 78 77 77 78 78 78 78 76 76 76 76 77 77 76 76 PWIND DIR SW SW S S S S SE SE SE WIND CHAR LT LT LT LT LT LT LT LT LT AVG CLOUDS B1 B1 B1 SC SC SC B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC POP 12HR 30 30 20 30 30 30 30 20 20 RAIN SHWRS C C C S S S C C C C C C C S S S S S TSTMS S S S S S S S S S S S S S S S S S S $$ MPZ003-021800- SAIPAN INTERNATIONAL AIRPORT-OBYAN MP 15.11N 145.72E ELEV. 215 FT 301 PM CHST THU OCT 2 2025 DATE THU 10/02/25 FRI 10/03/25 SAT 10/04/25 SUN CHST3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MIN/MAX 77 89 78 88 78 TEMP 87 85 82 79 78 78 84 89 88 86 83 80 78 79 84 88 87 85 82 80 78 DEWPT 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 RH 75 80 88 97100100 82 70 72 77 85 94100 97 82 72 75 80 88 94100 WIND DIR E E E E E E SE S S S S SW SW SW SW W W NW NW SW SW WIND SPD 4 5 5 3 2 3 4 4 2 2 2 2 2 2 3 3 3 2 0 1 1 CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC POP 12HR 20 20 20 20 20 QPF 12HR 0.04 0.04 0.04 0.11 0.09 RAIN SHWRS S S S S S S S S S S S S S S S S S S S S S TSTMS S S S S S S S S S S S S HEAT INDEX 100 97 92 84 95103102 98 93 88 94101100 96 92 86 MAX HEAT 101 99 90 95 103 101 91 94 101 99 90 DATE 10/05/25 MON 10/06/25 TUE 10/07/25 WED 10/08/25 THU 10/09/25 CHST6HRLY 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MAX/MIN 88 78 88 78 88 78 88 78 88 TEMP 84 87 82 78 84 87 82 78 84 87 82 78 84 87 82 78 84 87 DEWPT 78 77 78 78 78 77 78 78 78 78 76 76 76 76 77 77 76 76 PWIND DIR SW SW S S S S SE SE E WIND CHAR LT LT LT LT LT LT LT LT LT AVG CLOUDS B1 B1 B1 SC SC SC B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC POP 12HR 30 30 20 30 30 30 30 20 20 RAIN SHWRS C C C S S S C C C C C C C S S S S S TSTMS S S S S S S S S S S S S S S S S S S $$