diff --git a/dask_ml/cluster/k_means.py b/dask_ml/cluster/k_means.py
index <HASH>..<HASH> 100644
--- a/dask_ml/cluster/k_means.py
+++ b/dask_ml/cluster/k_means.py
@@ -447,7 +447,9 @@ def init_scalable(
     # to do that.
 
     if len(centers) < n_clusters:
-        logger.warning("Found fewer than %d clusters in init.", n_clusters)
+        logger.warning(
+            "Found fewer than %d clusters in init (found %d).", n_clusters, len(centers)
+        )
         # supplement with random
         need = n_clusters - len(centers)
         locs = sorted(
Log amount of found clusters in kmeans init (#<I>)

* Log amount of found clusters in kmeans init