Editing Sea state (section)

== WMO sea state code==
[[File:Wasser über Deck und Luken WNA.png| thumb|Winter, North Atlantic – Water over deck and hatches, storm with huge waves (1958)]]
The [[World Meteorological Organization]] (WMO) sea state code largely adopts the 'wind sea' definition of the [[Douglas Sea Scale]].

[[File:Sea state code height.png|thumb|graphic of WMO sea state codes, descriptions, and wave heights in meters]]

{| class=wikitable
! WMO Sea State Code !! Wave height !! Characteristics
|-
| 0 || {{convert|0|m}} || Calm (glassy)
|-
| 1 || {{convert|0|to|0.1|m|in}} || Calm (rippled)
|-
| 2 || {{convert|0.1|to|0.5|m}} || Smooth (wavelets)
|-
| 3 || {{convert|0.5|to|1.25|m}} || Slight
|-
| 4 ||{{convert| 1.25|to|2.5|m}} || Moderate
|-
| 5 || {{convert|2.5|to|4|m}} || Rough
|-
| 6 || {{convert|4|to|6|m}} || Very rough
|-
| 7 || {{convert|6|to|9|m}} || High
|-
| 8 || {{convert|9|to|14|m}} || Very high
|-
| 9 || Over {{convert|14|m}} || Phenomenal
|}
{| class="wikitable"
|+ Character of the sea swell
|-
| &nbsp; || 0. None
|-
| '''Low''' || 1. Short or average<br /> 2. Long
|-
| '''Moderate''' || 3. Short<br />4. Average<br />5. Long
|-
| '''High''' || 6. Short<br />7. Average<br />8. Long
|-
| &nbsp; || 9. Confused
|}
:The direction from which the swell is coming should be recorded.