diff --git a/src/game/AI/ScriptDevAI/scripts/northrend/world_northrend.cpp b/src/game/AI/ScriptDevAI/scripts/northrend/world_northrend.cpp
index aaf92a4386d..a1d7a7a854f 100644
--- a/src/game/AI/ScriptDevAI/scripts/northrend/world_northrend.cpp
+++ b/src/game/AI/ScriptDevAI/scripts/northrend/world_northrend.cpp
@@ -32,6 +32,19 @@ void world_map_northrend::OnCreatureCreate(Creature* creature)
 
 void world_map_northrend::SetData(uint32 /*uiType*/, uint32 /*uiData*/) {}
 
+void world_map_northrend::SetData64(uint32 data, uint64 value)
+{
+    switch (data)
+    {
+        case 12537: // Lightning Definitely Strikes Twice
+            if (value) // 1 turn on weather
+                instance->SetZoneWeather(0, 4306, 5, 1.f);
+            else // 0 turn off weather
+                instance->SetZoneWeather(0, 4306, 0, 0.f);
+            break;
+    }
+}
+
 void world_map_northrend::SetDalaranCooldownTime(ObjectGuid playerGuid)
 {
     m_dalaranAreatriggerCooldown.emplace(playerGuid, instance->GetCurrentClockTime());
diff --git a/src/game/AI/ScriptDevAI/scripts/northrend/world_northrend.h b/src/game/AI/ScriptDevAI/scripts/northrend/world_northrend.h
index fc49219e34d..b0e6de2f50e 100644
--- a/src/game/AI/ScriptDevAI/scripts/northrend/world_northrend.h
+++ b/src/game/AI/ScriptDevAI/scripts/northrend/world_northrend.h
@@ -19,6 +19,7 @@ struct world_map_northrend : public ScriptedMap
         void OnCreatureCreate(Creature* creature) override;
 
         void SetData(uint32 /*uiType*/, uint32 /*uiData*/) override;
+        void SetData64(uint32 data, uint64 value) override;
 
         void SetDalaranCooldownTime(ObjectGuid playerGuid);
         bool IsDalaranCooldownForPlayer(ObjectGuid playerGuid) const;