Ensure samples are added to Sounding.samples list

lib/xmet/bufr.py

@@ -22,9 +22,12 @@ class BUFRSounding(Sounding):
         sample = self.samples_by_pressure.get(pressure)
 
         if sample is None:
-            self.samples_by_pressure[pressure] = SoundingSample()
+            sample = SoundingSample()
+            sample.pressure = pressure
 
-        return self.samples_by_pressure[pressure]
+            self.samples_by_pressure[pressure] = sample
+
+        return sample
 
     @staticmethod
     def init():
@@ -76,4 +79,7 @@ class BUFRSounding(Sounding):
                 sample.wind_speed = item.getNumber('wsSigW')
                 sample.wind_dir   = item.getNumber('wdSigW')
 
+        for pressure in sorted(sounding.samples_by_pressure.keys(), reverse=True):
+            sounding.samples.append(sounding.samples_by_pressure[pressure])
+
         return sounding

lib/xmet/sounding.py

@@ -131,6 +131,7 @@ class Sounding(DatabaseTable):
         super().__init__()
         self.id       = None
         self.location = None
+        self.samples  = list()
 
     @staticmethod
     def valid_by_station(db: Database,