Point Forecast Matrices
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
Versions:
1
986 FOMY50 PGUM 021905 PFMGUM Point Forecast Matrices National Weather Service Tiyan GU 505 AM ChST Sun Aug 3 2025 GUZ001-031015- Guam International Airport-Tiyan GU 13.48N 144.79E Elev. 248 ft 505 AM ChST Sun Aug 3 2025 Date Sun 08/03/25 Mon 08/04/25 Tue 08/05/25 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 88 77 85 Temp 78 82 86 86 84 82 79 78 78 83 87 87 85 82 79 78 78 82 85 84 Dewpt 78 78 78 78 78 78 79 78 78 78 78 78 78 79 79 78 78 79 79 79 RH 100 88 77 77 82 88100100100 85 75 75 80 91100100100 91 82 85 Wind dir SE SE SE SE SE SE SE SE SE SE E E E E E E E SE SE SE Wind spd 6 13 12 9 9 5 10 5 9 11 11 10 10 9 9 9 9 11 10 10 Clouds B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 PoP 12hr 50 40 30 40 40 QPF 12hr 0.14 0.28 0.16 0.16 0.25 Rain shwrs C C C C C C C C S S S S C C C C C C C C Tstms S S S S S S S S Heat index 92 98 97 94 91 85 94100 99 96 92 85 92 97 96 Max heat 92 98 97 89 94 100 99 90 92 97 Date Wed 08/06/25 Thu 08/07/25 Fri 08/08/25 Sat 08/09/25 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 86 77 87 77 87 77 87 Temp 81 78 83 85 81 77 83 86 81 78 83 87 82 78 83 86 Dewpt 79 78 78 78 78 77 78 78 78 78 78 78 78 78 78 78 PWind dir SE S S S 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 B1 B1 B1 B1 B1 B1 B1 PoP 12hr 40 40 30 30 30 30 30 30 Rain shwrs 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 $$ MPZ001-031015- Rota International Airport-Sinapalu MP 14.17N 145.23E Elev. 592 ft 505 AM ChST Sun Aug 3 2025 Date Sun 08/03/25 Mon 08/04/25 Tue 08/05/25 ChST3hrly 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 Max/Min 86 77 86 77 84 Temp 77 82 86 85 83 81 79 77 78 82 85 85 83 81 78 77 77 81 84 83 Dewpt 77 78 78 78 78 78 79 77 78 78 78 78 79 79 78 77 77 79 79 79 RH 100 88 77 80 85 91100100100 88 80 80 88 94100100100 94 85 88 Wind dir SE SE SE SE SE SE SE SE E E E E E E E E E SE SE E Wind spd 6 10 14 13 14 11 11 8 8 9 12 11 12 12 11 11 12 13 11 10 Clouds B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 PoP 12hr 50 40 30 40 40 QPF 12hr 0.17 0.06 0.10 0.19 0.24 Rain shwrs C C C C C C C C S S S S C C C C C C C C Tstms S S S S S S S S Heat index 91 98 97 94 90 91 98 97 94 90 90 96 95 Max heat 91 98 96 88 91 98 96 86 90 96 Date Wed 08/06/25 Thu 08/07/25 Fri 08/08/25 Sat 08/09/25 ChST6hrly 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 Min/Max 76 85 77 85 77 86 76 85 Temp 80 76 81 84 80 77 82 84 80 77 82 85 81 77 81 84 Dewpt 79 76 78 78 78 77 78 78 78 77 78 78 78 77 78 78 PWind dir SE S S SW SE SE E E Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 PoP 12hr 40 40 30 30 30 30 30 30 Rain shwrs C C C C C C C C C C C C C C C C Tstms S S S S S S S S S S S S S S S S $$ MPZ002-031015- Tinian-San Jose MP 14.97N 145.63E Elev. 74 ft 505 AM ChST Sun Aug 3 2025 Date Sun 08/03/25 Mon 08/04/25 Tue 08/05/25 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 87 79 86 Temp 80 84 87 87 85 83 80 79 80 83 86 86 85 83 81 80 80 83 85 85 Dewpt 78 78 78 78 78 79 79 78 78 78 78 78 79 79 79 79 79 79 79 79 RH 94 82 75 75 80 88 97 97 94 85 77 77 82 88 94 97 97 88 82 82 Wind dir E E SE SE SE E E E E E E E E E E E SE SE SE E Wind spd 11 16 16 13 14 13 14 11 12 12 13 12 13 12 12 11 12 13 12 11 Clouds B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 PoP 12hr 40 30 30 40 40 QPF 12hr 0.03 0.06 0.09 0.19 0.22 Rain shwrs C C C C C C C C S S S S C C C C C C C C Tstms S S S S S S S S Heat index 85 95100 99 97 93 89 84 85 94 99 99 97 94 90 86 89 94 98 97 Max heat 95 100 99 92 94 99 98 93 94 98 Date Wed 08/06/25 Thu 08/07/25 Fri 08/08/25 Sat 08/09/25 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 85 82 79 83 86 82 79 83 85 Dewpt 79 78 78 78 78 78 78 77 78 78 78 77 78 78 78 78 PWind dir SE S S SW SE SE E E Wind char GN GN LT LT LT LT LT LT Avg clouds B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 PoP 12hr 40 40 30 30 30 30 30 30 Rain shwrs 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 $$ MPZ003-031015- Saipan International Airport-Obyan MP 15.11N 145.72E Elev. 215 ft 505 AM ChST Sun Aug 3 2025 Date Sun 08/03/25 Mon 08/04/25 Tue 08/05/25 ChST3hrly 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 UTC 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 Max/Min 88 78 87 79 86 Temp 79 84 88 87 85 83 80 79 79 84 87 86 85 83 81 79 80 83 86 86 Dewpt 78 78 78 78 79 79 79 78 78 78 78 78 79 79 79 79 79 79 79 79 RH 97 82 72 75 82 88 97 97 97 82 75 77 82 88 94100 97 88 80 80 Wind dir E E SE E E E E E E E E E E E E E SE SE SE E Wind spd 11 13 14 12 11 14 13 10 11 13 13 13 13 13 12 11 12 13 12 11 Clouds B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 PoP 12hr 40 30 30 40 40 QPF 12hr 0.05 0.03 0.09 0.19 0.21 Rain shwrs C C C C C C C C S S S S C C C C C C C C Tstms S S S S S S S S Heat index 84 95101101 98 93 89 84 94100100 97 93 90 84 85 94 99 99 Max heat 95 101 100 92 94 100 99 92 94 99 Date Wed 08/06/25 Thu 08/07/25 Fri 08/08/25 Sat 08/09/25 ChST6hrly 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 Min/Max 78 86 78 87 78 87 79 86 Temp 82 79 83 85 82 79 83 86 82 79 83 86 82 79 83 85 Dewpt 79 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 PWind dir SE S S SW SE SE E E Wind char GN GN LT LT LT LT LT LT Avg clouds B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 PoP 12hr 40 40 30 30 30 30 30 30 Rain shwrs C C C C C C C C C C C C C C C C Tstms S S S S S S S S S S S S S S S S $$