Point Forecast Matrices
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
124 FOMY50 PGUM 302345 PFMGUM Point Forecast Matrices National Weather Service Tiyan GU 945 AM ChST Thu Oct 1 2026 GUZ001-010600- Guam International Airport-Tiyan GU 13.48N 144.79E Elev. 248 ft 945 AM ChST Thu Oct 1 2026 Date Thu 10/01/26 Fri 10/02/26 Sat 10/03/26 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 78 86 77 85 Temp 85 87 86 85 82 80 79 79 83 86 85 83 81 79 78 78 82 85 84 Dewpt 78 78 78 78 79 78 78 78 78 79 78 79 79 79 79 79 79 79 79 RH 80 75 77 80 91 94 97 97 85 80 80 88 94100103103 91 82 85 Wind dir W W W W W W W W SW SW W W W W W W SW SW SW Wind spd 18 19 20 23 24 26 27 28 29 32 32 32 32 33 32 32 31 32 31 Wind gust 42 42 42 41 Clouds B2 B2 B2 OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV PoP 12hr 50 60 60 70 70 QPF 12hr 0.31 0.81 0.46 0.70 0.49 Rain shwrs C C C L L L L L L L L L L L L L L L L Tstms S S S S S S S S S S S S S S S S S S S Heat index 95101100 97 93 88 84 95102101 98 93 89 84 96102101 Max heat 95 101 100 91 95 102 100 92 96 102 High Surf Y Y Y Y Y Y Y Y Y Y Y Y Y Wind Y Y Y Y Y Y Y Y Y Y Y Y Y Date Sun 10/04/26 Mon 10/05/26 Tue 10/06/26 Wed 10/07/26 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 78 87 78 88 79 85 Temp 81 77 83 86 82 79 83 86 82 79 84 87 83 80 83 85 Dewpt 79 79 79 79 79 79 79 79 79 79 79 79 79 79 79 79 PWind dir W W SW SW SW SW SW SW Wind char WY WY WY WY WY BZ BZ BZ Avg clouds OV OV B2 B2 B2 B2 B2 B1 B1 B1 B1 SC B1 B1 B1 B1 PoP 12hr 60 60 60 50 40 40 30 30 Rain shwrs L L L L L C C C C C C S C C C C Tstms S S S S S S S S S S S S S S S S $$ MPZ001-010600- Rota International Airport-Sinapalu MP 14.17N 145.23E Elev. 592 ft 945 AM ChST Thu Oct 1 2026 Date Thu 10/01/26 Fri 10/02/26 Sat 10/03/26 ChST3hrly 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 Max/Min 87 78 86 77 85 Temp 85 87 86 85 82 80 79 79 83 86 85 83 81 79 78 78 82 85 84 Dewpt 78 78 78 78 79 79 78 78 79 79 79 79 79 79 79 79 79 79 79 RH 80 75 77 80 91 97 97 97 88 80 82 88 94100103103 91 82 85 Wind dir W W W W W W W W W W W W W SW W SW SW W W Wind spd 17 19 21 23 25 27 29 31 32 33 34 34 34 34 34 34 33 34 32 Wind gust 43 44 44 44 44 44 44 44 42 Clouds OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV PoP 12hr 70 70 60 60 60 QPF 12hr 0.33 0.57 0.49 0.42 0.37 Rain shwrs L L L L L L L L L L L L L L L L L L L Tstms S S S S S S S S S S S S S S S S S S S Heat index 95101101 97 93 88 84 95102102 98 93 89 84 96103102 Max heat 95 101 100 91 95 102 101 92 96 103 High Surf Y Y Y Y Y Y Y Y Y Y Y Y Y Wind Y Y Y Y Y Y Y Y Y Y Y Y Y Date Sun 10/04/26 Mon 10/05/26 Tue 10/06/26 Wed 10/07/26 ChST6hrly 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 Min/Max 77 87 78 87 78 88 79 84 Temp 81 77 83 86 82 79 83 86 82 79 84 87 83 80 82 84 Dewpt 79 79 79 79 79 79 79 79 79 79 79 79 79 79 79 79 PWind dir W W SW SW SW SW SW SW Wind char VW WY WY WY WY BZ BZ BZ Avg clouds OV B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 PoP 12hr 60 60 60 50 40 30 30 30 Rain shwrs L L L L L C C C C C C S C C C C Tstms S S S S S S S S S S S S S S S S $$ MPZ002-010600- Tinian-San Jose MP 14.97N 145.63E Elev. 74 ft 945 AM ChST Thu Oct 1 2026 Date Thu 10/01/26 Fri 10/02/26 Sat 10/03/26 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 78 86 77 85 Temp 85 87 86 85 82 80 79 79 83 86 85 83 81 79 78 78 82 85 84 Dewpt 78 78 78 78 79 79 78 78 79 79 79 79 79 79 79 79 79 79 79 RH 80 75 77 80 91 97 97 97 88 80 82 88 94100103103 91 82 85 Wind dir NW W W W W W W W SW SW SW SW SW SW W W W W W Wind spd 17 20 23 25 28 32 34 35 36 36 36 36 36 37 36 36 35 36 34 Wind gust 46 47 48 48 48 48 48 48 48 46 47 44 Clouds OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV PoP 12hr 60 60 70 80 80 QPF 12hr 0.18 0.45 0.63 1.02 1.01 Rain shwrs L L L L L L L L L L L O O O O L L L L Tstms S S S S S S S S S S S S S S S S S S S Heat index 95101100 97 93 88 84 95102102 99 94 89 84 96103102 Max heat 95 101 100 91 95 102 101 92 96 103 Coast Flood A A A A A A A A A A A A A A A A A A A Flood A A A A A A A A A A A A A A A High Surf Y Y Y Y Y Y Y Y Y Y Y Y Y Trop Storm W W W W W W W W W W W W W W W W W W W Date Sun 10/04/26 Mon 10/05/26 Tue 10/06/26 Wed 10/07/26 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 78 87 78 88 79 86 Temp 81 77 83 86 82 79 83 86 82 79 84 87 83 80 83 85 Dewpt 80 79 79 79 79 79 79 79 79 79 79 79 79 79 79 79 PWind dir W W W SW SW SW SW SW Wind char VW VW VW WY WY BZ BZ GN Avg clouds OV OV OV B2 B2 B2 B1 B1 B1 B1 B1 SC B1 B1 B1 B1 PoP 12hr 70 60 60 50 30 30 30 30 Rain shwrs L L L L L C C C C C C S C C C C Tstms S S S S S S S S S S S S S S S S $$ MPZ003-010600- Saipan International Airport-Obyan MP 15.11N 145.72E Elev. 215 ft 945 AM ChST Thu Oct 1 2026 Date Thu 10/01/26 Fri 10/02/26 Sat 10/03/26 ChST3hrly 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 Max/Min 87 78 86 77 85 Temp 85 87 86 85 82 80 79 79 83 86 85 83 81 79 78 78 82 85 84 Dewpt 78 78 78 79 79 79 78 78 79 79 79 79 79 79 79 79 79 79 79 RH 80 75 77 82 91 97 97 97 88 80 82 88 94100103103 91 82 85 Wind dir NW W W W W W W W SW SW SW SW SW SW SW W W W W Wind spd 17 20 23 26 29 33 35 36 36 37 37 37 37 37 37 36 35 36 34 Wind gust 43 46 47 48 49 49 49 49 49 48 48 46 48 44 Clouds OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV PoP 12hr 60 70 70 80 80 QPF 12hr 0.18 0.55 0.69 1.35 1.40 Rain shwrs L L L L L L L L L L L O O O O O O O O Tstms S S S S S S S S S S S S S S S S S S S Heat index 95101101 98 93 88 84 95102102 98 94 89 84 96103102 Max heat 95 101 100 91 95 102 101 92 96 103 Coast Flood A A A A A A A A A A A A A A A A A A A Flood A A A A A A A A A A A A A A A High Surf Y Y Y Y Y Y Y Y Y Y Y Y Y Trop Storm W W W W W W W W W W W W W W W W W W W Date Sun 10/04/26 Mon 10/05/26 Tue 10/06/26 Wed 10/07/26 ChST6hrly 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 Min/Max 77 87 78 87 78 88 79 86 Temp 81 77 83 86 82 79 83 86 82 79 84 87 83 80 83 85 Dewpt 80 79 79 79 79 79 79 79 79 79 79 79 79 79 79 79 PWind dir W W SW SW SW SW SW SW Wind char VW VW VW WY WY BZ BZ GN Avg clouds OV OV OV OV B2 B2 B1 B1 B1 B1 B1 SC B1 B1 B1 B1 PoP 12hr 80 60 60 50 30 30 30 30 Rain shwrs O L L L L C C C C C C S C C C C Tstms S S S S S S S S S S S S S S S S $$