diff --git a/work/meshai/persistence/db.py b/work/meshai/persistence/db.py
index cf3deaf..fd977ef 100644
--- a/work/meshai/persistence/db.py
+++ b/work/meshai/persistence/db.py
@@ -30,7 +30,7 @@ logger = logging.getLogger(__name__)
 
 DEFAULT_DB_PATH = "/data/meshai.sqlite"
 MESHAI_DB_PATH_ENV = "MESHAI_DB_PATH"
-SCHEMA_VERSION = 18
+SCHEMA_VERSION = 19
 SCHEMA_META_TABLE = "schema_meta"
 MIGRATIONS_DIR = Path(__file__).parent / "migrations"
 
diff --git a/work/meshai/persistence/migrations/v19.sql b/work/meshai/persistence/migrations/v19.sql
new file mode 100644
index 0000000..90d7d0e
--- /dev/null
+++ b/work/meshai/persistence/migrations/v19.sql
@@ -0,0 +1,6 @@
+-- v19: fire_cause, unique_fire_id, geocoder_city columns for fire-alert enrichment.
+-- Nullable TEXT, no index, no backfill.
+
+ALTER TABLE fires ADD COLUMN fire_cause     TEXT;
+ALTER TABLE fires ADD COLUMN unique_fire_id TEXT;
+ALTER TABLE fires ADD COLUMN geocoder_city  TEXT;