diff --git a/definitions/grib2/cfVarName.def b/definitions/grib2/cfVarName.def
index f92927820..15e32cf6d 100644
--- a/definitions/grib2/cfVarName.def
+++ b/definitions/grib2/cfVarName.def
@@ -2390,8 +2390,8 @@
 	 parameterCategory = 19 ;
 	 parameterNumber = 21 ;
 	}
-#Clear air turbulence (CAT)
-'cat' = {
+#Relative clear air turbulence (RCAT)
+'rcat' = {
 	 discipline = 0 ;
 	 parameterCategory = 19 ;
 	 parameterNumber = 22 ;
diff --git a/definitions/grib2/name.def b/definitions/grib2/name.def
index f5f5fd238..b4bc01bfb 100644
--- a/definitions/grib2/name.def
+++ b/definitions/grib2/name.def
@@ -2390,8 +2390,8 @@
 	 parameterCategory = 19 ;
 	 parameterNumber = 21 ;
 	}
-#Clear air turbulence (CAT)
-'Clear air turbulence (CAT)' = {
+#Relative clear air turbulence (RCAT)
+'Relative clear air turbulence (RCAT)' = {
 	 discipline = 0 ;
 	 parameterCategory = 19 ;
 	 parameterNumber = 22 ;
diff --git a/definitions/grib2/paramId.def b/definitions/grib2/paramId.def
index aab26d21d..20cc722f2 100644
--- a/definitions/grib2/paramId.def
+++ b/definitions/grib2/paramId.def
@@ -2390,7 +2390,7 @@
 	 parameterCategory = 19 ;
 	 parameterNumber = 21 ;
 	}
-#Clear air turbulence (CAT)
+#Relative clear air turbulence (RCAT)
 '260165' = {
 	 discipline = 0 ;
 	 parameterCategory = 19 ;
diff --git a/definitions/grib2/shortName.def b/definitions/grib2/shortName.def
index 239c54b8b..138a4e242 100644
--- a/definitions/grib2/shortName.def
+++ b/definitions/grib2/shortName.def
@@ -2390,8 +2390,8 @@
 	 parameterCategory = 19 ;
 	 parameterNumber = 21 ;
 	}
-#Clear air turbulence (CAT)
-'cat' = {
+#Relative clear air turbulence (RCAT)
+'rcat' = {
 	 discipline = 0 ;
 	 parameterCategory = 19 ;
 	 parameterNumber = 22 ;
diff --git a/definitions/grib2/units.def b/definitions/grib2/units.def
index ec66949b8..fa529442f 100644
--- a/definitions/grib2/units.def
+++ b/definitions/grib2/units.def
@@ -2390,7 +2390,7 @@
 	 parameterCategory = 19 ;
 	 parameterNumber = 21 ;
 	}
-#Clear air turbulence (CAT)
+#Relative clear air turbulence (RCAT)
 '%' = {
 	 discipline = 0 ;
 	 parameterCategory = 19 ;