diff --git a/lib/xmet/rawins.py b/lib/xmet/rawins.py
index 79bae08..ae7b0ea 100644
--- a/lib/xmet/rawins.py
+++ b/lib/xmet/rawins.py
@@ -27,17 +27,12 @@ class RawinsObs():
     def __init__(self, kind: str):
         self.kind:      str               = kind
         self.timestamp: datetime.datetime = None
-        self.height:    float             = None
         self.surface:   float             = None
         self.values:    list[str]         = list()
 
     def read(self, value: str):
         self.values.append(value)
 
-    HEIGHTS = {
-        'TTAA': lambda n: n * 100
-    }
-
     TTAA_HEIGHTS = {
         '00': 1000,
         '92':  925,
@@ -64,8 +59,6 @@ class RawinsObs():
             day   = day
         )
 
-        self.height = self.HEIGHTS[self.kind](int(value[4]))
-
     def parse_surface(self, value: str):
         if value[0:2] == '99':
             self.surface = float(value[2:5])
@@ -110,6 +103,18 @@ class RawinsObs():
                 'pressure': float(value[2:5])
             }
 
+    PRESSURES_SIG = {
+        '11': True, '22': True, '33': True, '44': True, '55': True,
+        '66': True, '77': True, '88': True, '99': True
+    }
+
+    def parse_significant_pressure(self, value: str):
+        if value[0:2] in self.PRESSURES_SIG:
+            return {
+                'height':   None,
+                'pressure': float(value[2:5])
+            }
+
     def parse_ttaa(self):
         pass