diff --git a/data/state.json b/data/state.json
new file mode 100644
index 0000000..0071c86
--- /dev/null
+++ b/data/state.json
@@ -0,0 +1,23 @@
+{
+  "sent_alerts": {
+    "severe_weather:urn:oid:2.49.0.1.840.0.60e26c16bab4970c623ad5eaf13913a10a0c4662.001.2": {
+      "dedup_key": "severe_weather:urn:oid:2.49.0.1.840.0.60e26c16bab4970c623ad5eaf13913a10a0c4662.001.2",
+      "alert_type": "severe_weather",
+      "sent_at": "2026-01-26T21:15:25.784599",
+      "forecast_hour": "urn:oid:2.49.0.1.840.0.60e26c16bab4970c623ad5eaf13913a10a0c4662.001.2"
+    },
+    "severe_weather:urn:oid:2.49.0.1.840.0.60e26c16bab4970c623ad5eaf13913a10a0c4662.001.1": {
+      "dedup_key": "severe_weather:urn:oid:2.49.0.1.840.0.60e26c16bab4970c623ad5eaf13913a10a0c4662.001.1",
+      "alert_type": "severe_weather",
+      "sent_at": "2026-01-26T21:15:25.784621",
+      "forecast_hour": "urn:oid:2.49.0.1.840.0.60e26c16bab4970c623ad5eaf13913a10a0c4662.001.1"
+    },
+    "temperature_low:2026-01-26": {
+      "dedup_key": "temperature_low:2026-01-26",
+      "alert_type": "temperature_low",
+      "sent_at": "2026-01-26T21:15:25.784625",
+      "forecast_hour": "2026-01-26-22"
+    }
+  },
+  "last_updated": "2026-01-26T21:15:25.784626"
+}
\ No newline at end of file