v4.5.3.1 Remove on screen warning from numpy for alpha tests (#1233)

docs/CHANGELOG.md

@@ -2,6 +2,16 @@ All notable changes to this project will be documented in this file.
 We follow the [Semantic Versioning 2.0.0](http://semver.org/) format.
 
 
+## v4.5.3.1 - 2024-07-24 - [PR#1233](https://github.com/NOAA-OWP/inundation-mapping/pull/1233)
+
+In a PR [1217](https://github.com/NOAA-OWP/inundation-mapping/pull/1217), which is about to be merged, it updates a bunch of python packages. One is numpy. This has triggered a very large amount of on-screen output from a new numpy warning while running `synthesize_test_cases.py`.
+
+### Changes
+- `tools\overlapping_inundation.py`: As described
+
+ <br/><br/>
+
+
 ## v4.5.3.0 - 2024-07-24 - [PR#1217](https://github.com/NOAA-OWP/inundation-mapping/pull/1217)
 
 This PR rolls up a bunch of other PR's and python packages requests including:

tools/overlapping_inundation.py

@@ -396,7 +396,7 @@ def merge_data(
     :param rst_dims: dimensions of overlapping rasters
     """
 
-    nan_tile = np.array([np.nan]).astype(dtype)[0]
+    nan_tile = np.array([np.nan])
     window_data = np.tile(float(nan_tile), [int(final_window.height), int(final_window.width)])
 
     for data, bnds, idx in zip(rst_data, window_bnds, datasets):