Fix #521: provide longitude before latitude when calling query.lonlat_box (#524)

* Fix #521: provide longitude before latitude when calling query.lonlat_box

See signature of `siphon.DataQuery.lonlat_box`: https://github.com/Unidata/siphon/blob/a6529fbaf3165f93cdffa87080295431a647df2c/siphon/http_util.py#L174

* Document fix in release notes

Author: grisaitis

docs/sphinx/source/whatsnew/v0.6.0.rst

@@ -75,6 +75,7 @@ Bug fixes
   floats and NumPy arrays. (:issue:`508`)
 * Make GitHub recognize the license, add AUTHORS.md, clarify shared copyright.
   (:issue:`503`)
+* Fix argument order of longitude and latitude when querying weather forecasts by lonlat bounding box (:issue:`521`)
 
 
 Documentation

pvlib/forecast.py

@@ -174,8 +174,8 @@ def set_query_latlon(self):
                 isinstance(self.latitude, list)):
             self.lbox = True
             # west, east, south, north
-            self.query.lonlat_box(self.latitude[0], self.latitude[1],
-                                  self.longitude[0], self.longitude[1])
+            self.query.lonlat_box(self.longitude[0], self.longitude[1],
+                                  self.latitude[0], self.latitude[1])
         else:
             self.lbox = False
             self.query.lonlat_point(self.longitude, self.latitude)