Update app.py

app.py

@@ -358,7 +358,7 @@ def update_oni_data():
 
 def create_fallback_oni_data(output_file):
     """Create minimal ONI data for testing"""
-    years = range(2000, 2026)  # Extended to include 2025
+    years = range(1950, 2026)  # Extended to include 2025
     months = ['Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec']
     
     # Create synthetic ONI data
@@ -637,7 +637,7 @@ def load_data_fixed(oni_path, typhoon_path):
 def create_fallback_typhoon_data():
     """Create minimal fallback typhoon data - FIXED VERSION"""
     # Use proper pandas date_range instead of numpy
-    dates = pd.date_range(start='2000-01-01', end='2025-12-31', freq='D')  # Extended to 2025
+    dates = pd.date_range(start='1950-01-01', end='2025-12-31', freq='D')  # Extended to 2025
     storm_dates = dates[np.random.choice(len(dates), size=100, replace=False)]
     
     data = []
@@ -2614,13 +2614,13 @@ def get_available_years(typhoon_data):
         
         # Ensure we have at least some years
         if not year_strings:
-            return [str(year) for year in range(2000, 2026)]
+            return [str(year) for year in range(1950, 2026)]
             
         return year_strings
         
     except Exception as e:
         print(f"Error in get_available_years: {e}")
-        return [str(year) for year in range(2000, 2026)]
+        return [str(year) for year in range(1950, 2026)]
 
 def update_typhoon_options_enhanced(year, basin):
     """Enhanced typhoon options with TD support and 2025 data"""