Point Forecast Matrices
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
Versions:
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774 FOMY50 PGUM 140600 PFMGUM POINT FORECAST MATRICES NATIONAL WEATHER SERVICE TIYAN GU 350 PM CHST TUE OCT 14 2025 GUZ001-141800- GUAM INTERNATIONAL AIRPORT-TIYAN GU 13.48N 144.79E ELEV. 248 FT 350 PM CHST TUE OCT 14 2025 DATE TUE 10/14/25 WED 10/15/25 THU 10/16/25 FRI 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 78 86 78 87 78 TEMP 86 84 82 80 78 79 83 86 85 84 82 80 78 79 83 87 86 84 82 80 79 DEWPT 77 77 77 77 77 77 77 77 78 78 78 78 78 78 78 78 78 79 79 79 79 RH 75 80 85 91 97 94 82 75 80 82 88 94100 97 85 75 77 85 91 97100 WIND DIR SE SE E SE SE SE SE SE SE SE E E E E E E E E E E E WIND SPD 16 11 11 16 12 17 18 14 14 9 8 8 4 12 13 8 9 10 10 8 8 CLOUDS OV OV OV OV OV OV OV OV OV OV OV OV OV B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 80 90 90 60 30 QPF 12HR 1.66 6.29 2.81 0.82 0.18 RAIN SHWRS L O O O O O O O O L L L L C C C C S S S S TSTMS S S S S S S S S S S S S S S S S S HEAT INDEX 98 94 90 85 92 97 97 94 91 86 94 99 99 96 93 86 MAX HEAT 98 97 89 92 97 96 89 94 99 98 91 FLOOD A A A A A A A A A A A A A DATE 10/17/25 SAT 10/18/25 SUN 10/19/25 MON 10/20/25 TUE 10/21/25 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 87 78 88 TEMP 84 87 83 79 84 87 83 79 84 87 82 79 83 86 82 79 84 87 DEWPT 79 79 79 79 78 78 79 79 79 79 80 79 79 79 79 79 79 78 PWIND DIR E E E E E E E E E WIND CHAR GN GN GN GN GN GN GN GN GN AVG CLOUDS B1 SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 20 20 30 30 30 30 30 30 30 RAIN SHWRS S S S S C C C C C C C C C C C C C C $$ MPZ001-141800- ROTA INTERNATIONAL AIRPORT-SINAPALU MP 14.17N 145.23E ELEV. 592 FT 350 PM CHST TUE OCT 14 2025 DATE TUE 10/14/25 WED 10/15/25 THU 10/16/25 FRI CHST3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MIN/MAX 78 86 78 86 78 TEMP 85 84 82 80 78 79 83 86 85 84 82 80 78 79 83 86 85 84 82 80 78 DEWPT 77 78 78 77 77 77 77 78 78 78 78 78 78 78 78 78 79 79 79 79 78 RH 77 82 88 91 97 94 82 77 80 82 88 94100 97 85 77 82 85 91 97100 WIND DIR SE E SE SE SE SE E E SE SE SE E E E E E E E E E E WIND SPD 14 12 11 16 13 17 13 12 11 9 9 11 8 13 16 12 10 9 10 9 10 CLOUDS B2 OV OV OV OV OV OV OV OV OV OV OV OV B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 80 90 90 60 30 QPF 12HR 2.30 1.32 0.79 0.56 0.14 RAIN SHWRS C O O O O O O O O L L L L C C C C S S S S TSTMS S S S S S S S S S S S S S S S S S HEAT INDEX 96 94 90 85 92 97 97 94 91 86 93 98 98 95 92 86 MAX HEAT 96 95 89 92 97 96 89 93 98 97 91 FLOOD A A A A A A A A A A A A A DATE 10/17/25 SAT 10/18/25 SUN 10/19/25 MON 10/20/25 TUE 10/21/25 CHST6HRLY 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MAX/MIN 86 78 86 78 86 78 86 78 86 TEMP 83 85 82 78 83 85 82 78 83 85 82 78 83 85 82 78 83 86 DEWPT 79 79 79 78 79 79 79 78 79 79 79 78 79 79 79 78 79 79 PWIND DIR E E E E E E E E E WIND CHAR GN GN BZ BZ GN GN GN GN GN AVG CLOUDS B1 SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 20 20 30 30 30 30 30 30 30 RAIN SHWRS S S S S C C C C C C C C C C C C C C $$ MPZ002-141800- TINIAN-SAN JOSE MP 14.97N 145.63E ELEV. 74 FT 350 PM CHST TUE OCT 14 2025 DATE TUE 10/14/25 WED 10/15/25 THU 10/16/25 FRI 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 78 86 78 87 78 TEMP 86 84 82 80 78 79 83 86 85 84 82 80 78 79 83 87 86 84 82 80 79 DEWPT 77 78 78 78 77 78 78 78 78 78 78 78 78 78 78 78 78 79 79 79 79 RH 75 82 88 94 97 97 85 77 80 82 88 94100 97 85 75 77 85 91 97100 WIND DIR E SE E E E SE E E E E E E E E E E E E E E E WIND SPD 11 13 12 10 11 14 16 18 12 13 12 12 8 13 16 14 12 9 8 10 12 CLOUDS B1 B2 B2 B2 B2 OV OV OV OV OV OV OV OV B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 50 60 60 60 40 QPF 12HR 2.72 1.14 0.50 0.33 0.18 RAIN SHWRS C C C C C L L L L L L L L C C C C S S S S TSTMS S S S S S S S S S S S S S S S S S S S S S HEAT INDEX 100 94 90 85 92 97 97 94 91 86 94100 99 97 93 86 MAX HEAT 101 99 89 92 97 96 89 94 100 98 91 DATE 10/17/25 SAT 10/18/25 SUN 10/19/25 MON 10/20/25 TUE 10/21/25 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 78 87 78 87 78 87 78 87 TEMP 84 87 82 79 83 86 82 79 83 86 82 79 83 86 82 79 83 86 DEWPT 79 78 79 79 79 79 79 79 79 79 80 79 79 79 79 79 78 78 PWIND DIR E E E E E E E E E WIND CHAR BZ BZ BZ BZ BZ GN GN GN GN AVG CLOUDS B1 SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 20 20 30 30 30 30 30 30 30 RAIN SHWRS S S S S C C C C C C C C C C C C C C TSTMS S $$ MPZ003-141800- SAIPAN INTERNATIONAL AIRPORT-OBYAN MP 15.11N 145.72E ELEV. 215 FT 350 PM CHST TUE OCT 14 2025 DATE TUE 10/14/25 WED 10/15/25 THU 10/16/25 FRI CHST3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MIN/MAX 78 87 78 88 78 TEMP 87 85 82 80 79 79 83 87 86 85 82 80 79 79 84 88 87 85 83 80 79 DEWPT 77 78 78 78 77 78 78 78 78 78 78 78 78 78 78 78 79 79 79 79 79 RH 72 80 88 94 94 97 85 75 77 80 88 94 97 97 82 72 77 82 88 97100 WIND DIR SE E SE SE E E E E E E E E E E E E E E E E E WIND SPD 11 12 12 11 10 11 16 19 10 12 12 11 8 12 16 14 12 9 8 10 12 CLOUDS B1 B2 B2 B2 B2 OV OV OV OV OV OV OV OV B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 50 60 60 60 40 QPF 12HR 1.72 1.05 0.48 0.32 0.22 RAIN SHWRS C C C C C L L L L L L L L C C C C S S S S TSTMS S S S S S S S S S S S S S S S S S S S S S HEAT INDEX 100 96 91 87 93 99 98 96 92 86 95102101 98 94 89 MAX HEAT 101 99 90 93 99 98 90 95 102 100 92 DATE 10/17/25 SAT 10/18/25 SUN 10/19/25 MON 10/20/25 TUE 10/21/25 CHST6HRLY 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 MAX/MIN 88 78 88 78 88 78 88 78 88 TEMP 84 87 83 79 84 87 83 79 84 87 83 79 84 87 83 79 84 87 DEWPT 79 79 79 79 79 79 80 79 79 79 80 79 79 79 79 79 78 78 PWIND DIR E E E E E E E E E WIND CHAR BZ BZ BZ BZ BZ GN GN GN GN AVG CLOUDS B1 SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 POP 12HR 20 20 30 30 30 30 30 30 30 RAIN SHWRS S S S S C C C C C C C C C C C C C C TSTMS S $$