diff --git a/wxdata/include/scwx/awips/text_product_message.hpp b/wxdata/include/scwx/awips/text_product_message.hpp
index d402cfd5..dec4af09 100644
--- a/wxdata/include/scwx/awips/text_product_message.hpp
+++ b/wxdata/include/scwx/awips/text_product_message.hpp
@@ -105,7 +105,7 @@ public:
    std::chrono::system_clock::time_point
    segment_event_begin(std::size_t s) const;
 
-   std::size_t data_size() const;
+   std::size_t data_size() const override;
 
    bool Parse(std::istream& is) override;
 
diff --git a/wxdata/include/scwx/wsr88d/rpg/digital_radial_data_array_packet.hpp b/wxdata/include/scwx/wsr88d/rpg/digital_radial_data_array_packet.hpp
index 9b94ba34..135b81ec 100644
--- a/wxdata/include/scwx/wsr88d/rpg/digital_radial_data_array_packet.hpp
+++ b/wxdata/include/scwx/wsr88d/rpg/digital_radial_data_array_packet.hpp
@@ -29,16 +29,16 @@ public:
    operator=(DigitalRadialDataArrayPacket&&) noexcept;
 
    uint16_t packet_code() const override;
-   uint16_t index_of_first_range_bin() const;
-   uint16_t number_of_range_bins() const;
-   int16_t  i_center_of_sweep() const;
-   int16_t  j_center_of_sweep() const;
+   uint16_t index_of_first_range_bin() const override;
+   uint16_t number_of_range_bins() const override;
+   int16_t  i_center_of_sweep() const override;
+   int16_t  j_center_of_sweep() const override;
    float    range_scale_factor() const;
-   uint16_t number_of_radials() const;
+   uint16_t number_of_radials() const override;
 
-   float                       start_angle(uint16_t r) const;
-   float                       delta_angle(uint16_t r) const;
-   const std::vector<uint8_t>& level(uint16_t r) const;
+   float                       start_angle(uint16_t r) const override;
+   float                       delta_angle(uint16_t r) const override;
+   const std::vector<uint8_t>& level(uint16_t r) const override;
 
    size_t data_size() const override;
 
diff --git a/wxdata/include/scwx/wsr88d/rpg/graphic_alphanumeric_block.hpp b/wxdata/include/scwx/wsr88d/rpg/graphic_alphanumeric_block.hpp
index 9b1f2019..5823d66d 100644
--- a/wxdata/include/scwx/wsr88d/rpg/graphic_alphanumeric_block.hpp
+++ b/wxdata/include/scwx/wsr88d/rpg/graphic_alphanumeric_block.hpp
@@ -35,7 +35,7 @@ public:
 
    const std::vector<std::vector<std::shared_ptr<Packet>>>& page_list() const;
 
-   bool Parse(std::istream& is);
+   bool Parse(std::istream& is) override;
 
    static constexpr size_t SIZE = 102u;
 
diff --git a/wxdata/include/scwx/wsr88d/rpg/graphic_product_message.hpp b/wxdata/include/scwx/wsr88d/rpg/graphic_product_message.hpp
index a14df940..cf52badd 100644
--- a/wxdata/include/scwx/wsr88d/rpg/graphic_product_message.hpp
+++ b/wxdata/include/scwx/wsr88d/rpg/graphic_product_message.hpp
@@ -30,7 +30,7 @@ public:
    GraphicProductMessage(GraphicProductMessage&&) noexcept;
    GraphicProductMessage& operator=(GraphicProductMessage&&) noexcept;
 
-   std::shared_ptr<ProductDescriptionBlock>  description_block() const;
+   std::shared_ptr<ProductDescriptionBlock>  description_block() const override;
    std::shared_ptr<ProductSymbologyBlock>    symbology_block() const;
    std::shared_ptr<GraphicAlphanumericBlock> graphic_block() const;
    std::shared_ptr<TabularAlphanumericBlock> tabular_block() const;
diff --git a/wxdata/include/scwx/wsr88d/rpg/product_symbology_block.hpp b/wxdata/include/scwx/wsr88d/rpg/product_symbology_block.hpp
index d597532c..69eac4c6 100644
--- a/wxdata/include/scwx/wsr88d/rpg/product_symbology_block.hpp
+++ b/wxdata/include/scwx/wsr88d/rpg/product_symbology_block.hpp
@@ -34,7 +34,7 @@ public:
 
    size_t data_size() const override;
 
-   bool Parse(std::istream& is);
+   bool Parse(std::istream& is) override;
 
    static constexpr size_t SIZE = 102u;
 
diff --git a/wxdata/include/scwx/wsr88d/rpg/radar_coded_message.hpp b/wxdata/include/scwx/wsr88d/rpg/radar_coded_message.hpp
index f1a22b5e..7d7846f0 100644
--- a/wxdata/include/scwx/wsr88d/rpg/radar_coded_message.hpp
+++ b/wxdata/include/scwx/wsr88d/rpg/radar_coded_message.hpp
@@ -27,7 +27,7 @@ public:
    RadarCodedMessage(RadarCodedMessage&&) noexcept;
    RadarCodedMessage& operator=(RadarCodedMessage&&) noexcept;
 
-   std::shared_ptr<ProductDescriptionBlock> description_block() const;
+   std::shared_ptr<ProductDescriptionBlock> description_block() const override;
 
    bool Parse(std::istream& is) override;
 
diff --git a/wxdata/include/scwx/wsr88d/rpg/radial_data_packet.hpp b/wxdata/include/scwx/wsr88d/rpg/radial_data_packet.hpp
index dd6e61ec..34540dc8 100644
--- a/wxdata/include/scwx/wsr88d/rpg/radial_data_packet.hpp
+++ b/wxdata/include/scwx/wsr88d/rpg/radial_data_packet.hpp
@@ -27,16 +27,16 @@ public:
    RadialDataPacket& operator=(RadialDataPacket&&) noexcept;
 
    uint16_t packet_code() const override;
-   uint16_t index_of_first_range_bin() const;
-   uint16_t number_of_range_bins() const;
-   int16_t  i_center_of_sweep() const;
-   int16_t  j_center_of_sweep() const;
+   uint16_t index_of_first_range_bin() const override;
+   uint16_t number_of_range_bins() const override;
+   int16_t  i_center_of_sweep() const override;
+   int16_t  j_center_of_sweep() const override;
    float    scale_factor() const;
-   uint16_t number_of_radials() const;
+   uint16_t number_of_radials() const override;
 
-   float                       start_angle(uint16_t r) const;
-   float                       delta_angle(uint16_t r) const;
-   const std::vector<uint8_t>& level(uint16_t r) const;
+   float                       start_angle(uint16_t r) const override;
+   float                       delta_angle(uint16_t r) const override;
+   const std::vector<uint8_t>& level(uint16_t r) const override;
 
    size_t data_size() const override;
 
diff --git a/wxdata/include/scwx/wsr88d/rpg/tabular_alphanumeric_block.hpp b/wxdata/include/scwx/wsr88d/rpg/tabular_alphanumeric_block.hpp
index 0d41fe62..267bd0e5 100644
--- a/wxdata/include/scwx/wsr88d/rpg/tabular_alphanumeric_block.hpp
+++ b/wxdata/include/scwx/wsr88d/rpg/tabular_alphanumeric_block.hpp
@@ -33,7 +33,7 @@ public:
 
    const std::vector<std::vector<std::string>>& page_list() const;
 
-   bool Parse(std::istream& is);
+   bool Parse(std::istream& is) override;
    bool Parse(std::istream& is, bool skipHeader);
 
    static constexpr size_t SIZE = 102u;
diff --git a/wxdata/include/scwx/wsr88d/rpg/tabular_product_message.hpp b/wxdata/include/scwx/wsr88d/rpg/tabular_product_message.hpp
index 006d5e82..ff9231cc 100644
--- a/wxdata/include/scwx/wsr88d/rpg/tabular_product_message.hpp
+++ b/wxdata/include/scwx/wsr88d/rpg/tabular_product_message.hpp
@@ -28,7 +28,7 @@ public:
    TabularProductMessage(TabularProductMessage&&) noexcept;
    TabularProductMessage& operator=(TabularProductMessage&&) noexcept;
 
-   std::shared_ptr<ProductDescriptionBlock>  description_block() const;
+   std::shared_ptr<ProductDescriptionBlock>  description_block() const override;
    std::shared_ptr<TabularAlphanumericBlock> tabular_block() const;
 
    bool Parse(std::istream& is) override;