Don't stop at minimum pressure

lib/xmet/hodograph.py

@@ -10,8 +10,6 @@ WIND_SPEED_STEP =  10
 
 WIND_DIR_STEP = 90 # degrees
 
-PRESSURE_MIN = 100
-
 def radians(degrees: float) -> float:
     return (degrees + 90) * (math.pi / 180.0)
 
@@ -140,9 +138,6 @@ class Hodograph():
             if sample.pressure < 0 or sample.pressure is None:
                 continue
 
-            if sample.pressure < PRESSURE_MIN:
-                break
-
             color = self.color(sample.height)
 
             if color is None: