diff --git a/wxdata/include/scwx/wsr88d/rpg/storm_tracking_information_message.hpp b/wxdata/include/scwx/wsr88d/rpg/storm_tracking_information_message.hpp
index fb2a00c2..7d238464 100644
--- a/wxdata/include/scwx/wsr88d/rpg/storm_tracking_information_message.hpp
+++ b/wxdata/include/scwx/wsr88d/rpg/storm_tracking_information_message.hpp
@@ -2,6 +2,12 @@
 
 #include <scwx/wsr88d/rpg/graphic_product_message.hpp>
 
+#include <optional>
+
+#include <units/angle.h>
+#include <units/length.h>
+#include <units/velocity.h>
+
 namespace scwx
 {
 namespace wsr88d
@@ -12,6 +18,27 @@ namespace rpg
 class StormTrackingInformationMessage : public GraphicProductMessage
 {
 public:
+   struct StiRecord
+   {
+      struct Position
+      {
+         std::optional<units::angle::degrees<float>>         azimuth_ {};
+         std::optional<units::length::nautical_miles<float>> range_ {};
+      };
+
+      Position                                     currentPosition_ {};
+      std::optional<units::angle::degrees<float>>  direction_;
+      std::optional<units::velocity::knots<float>> speed_;
+
+      std::array<Position, 4> forecastPosition_ {};
+
+      std::optional<units::length::nautical_miles<float>> forecastError_ {};
+      std::optional<units::length::nautical_miles<float>> meanError_ {};
+
+      std::optional<std::int16_t>               maxDbz_ {};
+      std::optional<units::length::feet<float>> maxDbzHeight_ {};
+   };
+
    explicit StormTrackingInformationMessage();
    ~StormTrackingInformationMessage();
 
diff --git a/wxdata/include/scwx/wsr88d/rpg/tabular_alphanumeric_block.hpp b/wxdata/include/scwx/wsr88d/rpg/tabular_alphanumeric_block.hpp
index e6ac58a8..0d41fe62 100644
--- a/wxdata/include/scwx/wsr88d/rpg/tabular_alphanumeric_block.hpp
+++ b/wxdata/include/scwx/wsr88d/rpg/tabular_alphanumeric_block.hpp
@@ -31,6 +31,8 @@ public:
 
    size_t data_size() const override;
 
+   const std::vector<std::vector<std::string>>& page_list() const;
+
    bool Parse(std::istream& is);
    bool Parse(std::istream& is, bool skipHeader);
 
diff --git a/wxdata/source/scwx/wsr88d/rpg/storm_tracking_information_message.cpp b/wxdata/source/scwx/wsr88d/rpg/storm_tracking_information_message.cpp
index 6201efd6..cc68a676 100644
--- a/wxdata/source/scwx/wsr88d/rpg/storm_tracking_information_message.cpp
+++ b/wxdata/source/scwx/wsr88d/rpg/storm_tracking_information_message.cpp
@@ -1,5 +1,9 @@
 #include <scwx/wsr88d/rpg/storm_tracking_information_message.hpp>
 #include <scwx/util/logger.hpp>
+#include <scwx/util/strings.hpp>
+#include <scwx/util/time.hpp>
+
+#include <unordered_map>
 
 namespace scwx
 {
@@ -17,6 +21,21 @@ class StormTrackingInformationMessage::Impl
 public:
    explicit Impl() {}
    ~Impl() = default;
+
+   void ParseGraphicBlock(
+      const std::shared_ptr<const GraphicAlphanumericBlock>& block);
+   void ParseTabularBlock(
+      const std::shared_ptr<const TabularAlphanumericBlock>& block);
+
+   void ParseStormPositionForecastPage(const std::vector<std::string>& page);
+   void ParseStormCellTrackingDataPage(const std::vector<std::string>& page);
+
+   // STORM POSITION/FORECAST
+   std::optional<std::uint16_t>                               radarId_ {};
+   std::optional<std::chrono::sys_time<std::chrono::seconds>> dateTime_ {};
+   std::optional<std::uint16_t>                               numStormCells_ {};
+
+   std::unordered_map<std::string, StiRecord> stiRecords_ {};
 };
 
 StormTrackingInformationMessage::StormTrackingInformationMessage() :
@@ -34,9 +53,110 @@ bool StormTrackingInformationMessage::Parse(std::istream& is)
 {
    bool dataValid = GraphicProductMessage::Parse(is);
 
+   std::shared_ptr<GraphicAlphanumericBlock> graphicBlock = nullptr;
+   std::shared_ptr<TabularAlphanumericBlock> tabularBlock = nullptr;
+
+   if (dataValid)
+   {
+      graphicBlock = graphic_block();
+      tabularBlock = tabular_block();
+   }
+
+   if (graphicBlock != nullptr)
+   {
+      p->ParseGraphicBlock(graphicBlock);
+   }
+
+   if (tabularBlock != nullptr)
+   {
+      p->ParseTabularBlock(tabularBlock);
+   }
+
    return dataValid;
 }
 
+void StormTrackingInformationMessage::Impl::ParseGraphicBlock(
+   const std::shared_ptr<const GraphicAlphanumericBlock>& block)
+{
+   // TODO
+   (void) (block);
+}
+
+void StormTrackingInformationMessage::Impl::ParseTabularBlock(
+   const std::shared_ptr<const TabularAlphanumericBlock>& block)
+{
+   static const std::string kStormPositionForecast_ = "STORM POSITION/FORECAST";
+   static const std::string kStormCellTrackingData_ =
+      "STORM CELL TRACKING/FORECAST ADAPTATION DATA";
+
+   for (auto& page : block->page_list())
+   {
+      if (page.empty())
+      {
+         logger_->warn("Unexpected empty page");
+         continue;
+      }
+
+      if (page[0].find(kStormPositionForecast_) != std::string::npos)
+      {
+         ParseStormPositionForecastPage(page);
+      }
+      else if (page[0].find(kStormCellTrackingData_) != std::string::npos)
+      {
+         ParseStormCellTrackingDataPage(page);
+      }
+   }
+}
+
+void StormTrackingInformationMessage::Impl::ParseStormPositionForecastPage(
+   const std::vector<std::string>& page)
+{
+   for (std::size_t i = 1; i < page.size(); ++i)
+   {
+      const std::string& line = page[i];
+
+      // clang-format off
+      // "     RADAR ID 308  DATE/TIME 12:11:21/02:15:38   NUMBER OF STORM CELLS  34"
+      // clang-format on
+      if (i == 1 && line.size() >= 74)
+      {
+         if (radarId_ == std::nullopt)
+         {
+            radarId_ =
+               util::TryParseUnsignedLong<std::uint16_t>(line.substr(14, 3));
+         }
+         if (dateTime_ == std::nullopt)
+         {
+            static const std::string kDateTimeFormat_ {"%m:%d:%y/%H:%M:%S"};
+
+            dateTime_ = util::TryParseDateTime<std::chrono::seconds>(
+               kDateTimeFormat_, line.substr(29, 17));
+         }
+         if (numStormCells_ == std::nullopt)
+         {
+            numStormCells_ =
+               util::TryParseUnsignedLong<std::uint16_t>(line.substr(71, 3));
+         }
+      }
+      // clang-format off
+      // "  V6     183/147   234/ 63     178/137   172/129   166/122   159/117    0.7/ 0.7"
+      // clang-format on
+      else if (i >= 7 && line.size() >= 80)
+      {
+         // TODO: STI Record
+         std::string stormId = line.substr(2, 2);
+         (void) (stormId);
+      }
+   }
+}
+
+void StormTrackingInformationMessage::Impl::ParseStormCellTrackingDataPage(
+   const std::vector<std::string>& page)
+{
+   // TODO
+   (void) (page);
+}
+
 std::shared_ptr<StormTrackingInformationMessage>
 StormTrackingInformationMessage::Create(Level3MessageHeader&& header,
                                         std::istream&         is)
diff --git a/wxdata/source/scwx/wsr88d/rpg/tabular_alphanumeric_block.cpp b/wxdata/source/scwx/wsr88d/rpg/tabular_alphanumeric_block.cpp
index 0fa1185a..e6c29519 100644
--- a/wxdata/source/scwx/wsr88d/rpg/tabular_alphanumeric_block.cpp
+++ b/wxdata/source/scwx/wsr88d/rpg/tabular_alphanumeric_block.cpp
@@ -54,7 +54,7 @@ TabularAlphanumericBlock::TabularAlphanumericBlock() :
 TabularAlphanumericBlock::~TabularAlphanumericBlock() = default;
 
 TabularAlphanumericBlock::TabularAlphanumericBlock(
-   TabularAlphanumericBlock&&) noexcept                     = default;
+   TabularAlphanumericBlock&&) noexcept = default;
 TabularAlphanumericBlock& TabularAlphanumericBlock::operator=(
    TabularAlphanumericBlock&&) noexcept = default;
 
@@ -68,6 +68,12 @@ size_t TabularAlphanumericBlock::data_size() const
    return p->lengthOfBlock_;
 }
 
+const std::vector<std::vector<std::string>>&
+TabularAlphanumericBlock::page_list() const
+{
+   return p->pageList_;
+}
+
 bool TabularAlphanumericBlock::Parse(std::istream& is)
 {
    return Parse(is, false);