diff --git a/cmd/service-splitarea/main.go b/cmd/service-splitarea/main.go
index e95684f..80deba2 100644
--- a/cmd/service-splitarea/main.go
+++ b/cmd/service-splitarea/main.go
@@ -2,7 +2,6 @@ package main
 
 import (
 	"context"
-	"database/sql"
 	"encoding/csv"
 	"encoding/json"
 	"errors"
@@ -186,30 +185,13 @@ func job(ctx context.Context, z, y, x int, bounds string, tzOffset int, outDir s
 	}
 	runAt = runAt.In(loc)
 
-	// Prefer current hour's :30 tile, fallback to :24 then :00 if missing.
-	targetBase := runAt.Truncate(time.Hour)
-	candidates := []int{30, 24, 0}
-	var (
-		targetLocal time.Time
-		rec         *radarTileRecord
-	)
-	for _, minute := range candidates {
-		candidate := targetBase.Add(time.Duration(minute) * time.Minute)
-		tile, err := getRadarTileAt(ctx, z, y, x, candidate)
-		if err == nil {
-			if minute != candidates[0] {
-				log.Printf("[splitarea] fallback to %02d-minute radar tile at %s", minute, candidate.Format("2006-01-02 15:04:05"))
-			}
-			targetLocal = candidate
-			rec = tile
-			break
-		}
-		if !errors.Is(err, sql.ErrNoRows) {
-			return fmt.Errorf("load radar tile z=%d y=%d x=%d at %s: %w", z, y, x, candidate.Format("2006-01-02 15:04:05"), err)
-		}
-	}
-	if rec == nil {
-		return fmt.Errorf("no radar tile found for z=%d y=%d x=%d near %s (checked minutes %v)", z, y, x, targetBase.Format("2006-01-02 15:04:05"), candidates)
+	// Current hour's :30
+	targetLocal := runAt.Truncate(time.Hour).Add(24 * time.Minute)
+
+	// Fetch tile
+	rec, err := getRadarTileAt(ctx, z, y, x, targetLocal)
+	if err != nil {
+		return fmt.Errorf("load radar tile z=%d y=%d x=%d at %s: %w", z, y, x, targetLocal.Format("2006-01-02 15:04:05"), err)
 	}
 
 	// Bounds
@@ -245,11 +227,10 @@ func job(ctx context.Context, z, y, x int, bounds string, tzOffset int, outDir s
 		return fmt.Errorf("invalid tile data")
 	}
 
-	// Prepare output dir: export_data/split_area/YYYYMMDD/HH/mm
+	// Prepare output dir: export_data/split_area/YYYYMMDD/HH/30 (keep legacy minute path)
 	ymd := targetLocal.Format("20060102")
 	hh := targetLocal.Format("15")
-	mm := targetLocal.Format("04")
-	dir := filepath.Join(outDir, ymd, hh, mm)
+	dir := filepath.Join(outDir, ymd, hh, "30")
 	if err := os.MkdirAll(dir, 0o755); err != nil {
 		return err
 	}