diff --git a/scwx-qt/source/scwx/qt/map/color_table_layer.cpp b/scwx-qt/source/scwx/qt/map/color_table_layer.cpp
index 3b0d89e4..f6181b5c 100644
--- a/scwx-qt/source/scwx/qt/map/color_table_layer.cpp
+++ b/scwx-qt/source/scwx/qt/map/color_table_layer.cpp
@@ -134,6 +134,9 @@ void ColorTableLayer::Render(
 
    p->shaderProgram_->Use();
 
+   // Set OpenGL blend mode for transparency
+   gl.glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+
    gl.glUniformMatrix4fv(
       p->uMVPMatrixLocation_, 1, GL_FALSE, glm::value_ptr(projection));
 
diff --git a/scwx-qt/source/scwx/qt/map/radar_product_layer.cpp b/scwx-qt/source/scwx/qt/map/radar_product_layer.cpp
index be3218c5..c495e23a 100644
--- a/scwx-qt/source/scwx/qt/map/radar_product_layer.cpp
+++ b/scwx-qt/source/scwx/qt/map/radar_product_layer.cpp
@@ -262,6 +262,9 @@ void RadarProductLayer::Render(
 
    p->shaderProgram_->Use();
 
+   // Set OpenGL blend mode for transparency
+   gl.glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+
    if (p->colorTableNeedsUpdate_)
    {
       UpdateColorTable();