Is Atmospheric Momentum The Key? - Video Forecast HERE (9/7/25)

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Surf Spot Forecast Graph Surf Size, Swell Size, Swell Period & Direction, Wind Speed & Direction   STORMSURF Surf & Wind Forecast Sumba -10.0 S 119.5 E Time(UTC)/Date Surf Size (ft) Swell Hght (ft) Swll Per (secs) Swl Dir (deg) Wind (kts) Signif Wave Hgt 12Z Mon 15SEP 4.6 3.3 13.6 224 SE 16 4.8 ft @ 5 secs 18Z Mon 15SEP 4.8 3.5 13.7 224 ESE 9 4.4 ft @ 4 secs 00Z Tue 16SEP 5.0 3.7 13.7 224 ESE 10 4.3 ft @ 4 secs 06Z Tue 16SEP 5.0 3.8 13.3 225 SE 14 4.7 ft @ 5 secs 12Z Tue 16SEP 4.2 3.3 12.9 225 SE 13 5.2 ft @ 5 secs 18Z Tue 16SEP 8.8 5.5 16.0 219 SE 16 6.1 ft @ 6 secs 00Z Wed 17SEP 9.4 6.1 15.3 218 ESE 9 6.4 ft @ 6 secs 06Z Wed 17SEP 9.2 6.2 14.9 218 SE 13 6.6 ft @ 7 secs 12Z Wed 17SEP 8.7 6.0 14.6 218 SE 9 6.4 ft @ 6 secs 18Z Wed 17SEP 8.3 5.8 14.4 217 ESE 13 6.1 ft @ 6 secs 00Z Thu 18SEP 8.0 5.6 14.2 215 ESE 7 5.6 ft @ 6 secs 06Z Thu 18SEP 7.1 5.1 13.9 218 SE 12 5.5 ft @ 5 secs 12Z Thu 18SEP 6.5 4.8 13.5 218 SE 11 5.1 ft @ 5 secs 18Z Thu 18SEP 5.7 4.4 13.1 218 E 9 4.9 ft @ 5 secs 00Z Fri 19SEP 5.1 4.0 12.6 218 ESE 8 4.3 ft @ 4 secs 06Z Fri 19SEP 4.6 3.7 12.3 218 SSE 13 4.2 ft @ 4 secs 12Z Fri 19SEP 3.7 3.1 11.9 218 SE 16 4.8 ft @ 5 secs 18Z Fri 19SEP 3.1 2.7 11.6 217 E 5 4.1 ft @ 4 secs 00Z Sat 20SEP 4.3 3.2 13.5 218 E 3 3.8 ft @ 4 secs 06Z Sat 20SEP 4.0 3.1 13.0 217 SSE 9 3.8 ft @ 4 secs 12Z Sat 20SEP 3.6 2.9 12.5 217 SE 8 4.3 ft @ 4 secs 18Z Sat 20SEP 5.2 3.4 15.2 217 NE 5 4.7 ft @ 5 secs 00Z Sun 21SEP 7.1 4.9 14.6 215 NNW 0 4.9 ft @ 5 secs 06Z Sun 21SEP 7.7 5.1 15.1 215 SSE 6 5.1 ft @ 5 secs 12Z Sun 21SEP 7.7 5.1 15.2 215 SE 6 5.1 ft @ 5 secs 18Z Sun 21SEP 7.4 5.0 14.9 215 SE 7 5.0 ft @ 5 secs 00Z Mon 22SEP 7.0 4.8 14.6 216 N 2 4.8 ft @ 5 secs 06Z Mon 22SEP 6.8 4.7 14.4 216 SSE 7 4.8 ft @ 5 secs 12Z Mon 22SEP 6.5 4.6 14.2 215 E 5 4.7 ft @ 5 secs 18Z Mon 22SEP 5.8 4.2 14.0 217 E 6 4.6 ft @ 5 secs 00Z Tue 23SEP 5.5 4.0 13.8 215 ESE 6 4.7 ft @ 5 secs

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