diff --git a/definitions/grib2/name.def b/definitions/grib2/name.def
index ddb281fe0..fa4fa7028 100644
--- a/definitions/grib2/name.def
+++ b/definitions/grib2/name.def
@@ -8110,6 +8110,12 @@
 	 parameterCategory = 0 ;
 	 parameterNumber = 32 ;
 	}
+#Wet-bulb temperature
+'Wet-bulb temperature' = {
+	 discipline = 0 ;
+	 parameterCategory = 0 ;
+	 parameterNumber = 27 ;
+	}
 #Sea ice thickness
 'Sea ice thickness' = {
 	 discipline = 10 ;
diff --git a/definitions/grib2/paramId.def b/definitions/grib2/paramId.def
index c1767469a..491450467 100644
--- a/definitions/grib2/paramId.def
+++ b/definitions/grib2/paramId.def
@@ -8110,6 +8110,12 @@
 	 parameterCategory = 0 ;
 	 parameterNumber = 32 ;
 	}
+#Wet-bulb temperature
+'261023' = {
+	 discipline = 0 ;
+	 parameterCategory = 0 ;
+	 parameterNumber = 27 ;
+	}
 #Sea ice thickness
 '262000' = {
 	 discipline = 10 ;
diff --git a/definitions/grib2/shortName.def b/definitions/grib2/shortName.def
index 5c0607a7b..1c6e962e4 100644
--- a/definitions/grib2/shortName.def
+++ b/definitions/grib2/shortName.def
@@ -8110,6 +8110,12 @@
 	 parameterCategory = 0 ;
 	 parameterNumber = 32 ;
 	}
+#Wet-bulb temperature
+'wbt' = {
+	 discipline = 0 ;
+	 parameterCategory = 0 ;
+	 parameterNumber = 27 ;
+	}
 #Sea ice thickness
 'sithick' = {
 	 discipline = 10 ;
diff --git a/definitions/grib2/units.def b/definitions/grib2/units.def
index 20e3a987b..ab3536b86 100644
--- a/definitions/grib2/units.def
+++ b/definitions/grib2/units.def
@@ -8110,6 +8110,12 @@
 	 parameterCategory = 0 ;
 	 parameterNumber = 32 ;
 	}
+#Wet-bulb temperature
+'K' = {
+	 discipline = 0 ;
+	 parameterCategory = 0 ;
+	 parameterNumber = 27 ;
+	}
 #Sea ice thickness
 'm' = {
 	 discipline = 10 ;