Japan Meteorological Agency | Sea Waves Detailed JMH chart image is available Significant Wave Height (SWH; The average height of the highest one-third of waves) is shown in the chart Generally, each wave may happen to be higher than SWH
WPC surface analysis zoom, pan, animation and archives This interactive surface analysis page combines maps archived in recent years with the historical surface analysis archive (maps prior to May of 2005) Click on the calendar entry box near the upper-right corner of the page to see available years