From: Alexander Vasarab <alexander@wylark.com>
Date: Thu, 7 Jan 2021 02:27:18 +0000 (-0800)
Subject: Fix another issue with MesoWest wind units
X-Git-Tag: v3.0.2^2~1^2~1
X-Git-Url: https://wylark.com/src/infoex-autowx.git/commitdiff_plain/045b69f96c4a18fb1dbb81f754e51d5fdf1629cc?hp=97828483d89b5f8bb0fd162d79c75d2616f8b898

Fix another issue with MesoWest wind units
---

diff --git a/infoex-autowx.py b/infoex-autowx.py
index d58baac..1d84ab8 100755
--- a/infoex-autowx.py
+++ b/infoex-autowx.py
@@ -480,9 +480,11 @@ def get_mesowest_data(begin, end, station):
             if observations[key_name][pos]:
                 remote_data[element_cd] = observations[key_name][pos]
 
-                # mesowest provides wind_speed in m/s, we want mph
+                # mesowest by default provides wind_speed in m/s, but
+                # we specify 'english' units in the request; either way,
+                # we want mph
                 if element_cd in ('wind_speed', 'wind_gust'):
-                    remote_data[element_cd] = ms_to_mph(remote_data[element_cd])
+                    remote_data[element_cd] = kn_to_mph(remote_data[element_cd])
             else:
                 remote_data[element_cd] = None
         else:
@@ -545,5 +547,9 @@ def ms_to_mph(ms):
     """convert meters per second to miles per hour"""
     return ms * 2.236936
 
+def kn_to_mph(kn):
+    """convert knots to miles per hour"""
+    return kn * 1.150779
+
 if __name__ == "__main__":
     sys.exit(main())