diff --git a/lib/xmet/hodograph.py b/lib/xmet/hodograph.py
index 3b9965a..76d50bf 100644
--- a/lib/xmet/hodograph.py
+++ b/lib/xmet/hodograph.py
@@ -165,9 +165,6 @@ class Hodograph():
 
     def each_significant_sample(self, sounding: Sounding):
         for sample in sounding.samples:
-            if sample.pressure < 0 or sample.pressure is None:
-                continue
-
             if sample.height is None:
                 continue