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BTS Home > Programs > Maritime Data Working Group > CASMAIN Data Dictionary
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Sea, River Conditions

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Sea Conditions Code Data Limit
"Calm ........... 0-1' " "CALM" "SEACON"
"Choppy ......... 1-3' " "CHOP" "
"Moderate ...... 4-12' " "MOD" "
"Heavy ........ 12-20' " "HVY" "
"Very Heavy ... 20-40' " "VHVY" "
"Precipitous .. GT-40' " "PREC" "
"Strong current" "SCRT" "
"Freshet/Flooding" "FRFL" "
"Flood tide" "FLTD" "
"Ebb tide" "EBBT" "
"Ice" "ICE" "
"Not specified" "NA" "
"Unknown" "UNK" "
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