Track nationwide severe thunderstorm warnings

flows.json

@@ -2176,6 +2176,23 @@
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+    {
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+        "type": "group",
+        "z": "ebd5561c4f077718",
+        "name": "National Weather Alerts",
+        "style": {
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+        },
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+        "w": 732,
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         "type": "junction",
@@ -4705,6 +4722,56 @@
         "resend": false,
         "debugEnabled": false
     },
+    {
+        "id": "4eaaca1b829b7144",
+        "type": "ha-device-config",
+        "name": "National Weather Alerts",
+        "hwVersion": "",
+        "manufacturer": "Node-RED",
+        "model": "",
+        "swVersion": ""
+    },
+    {
+        "id": "3983b0de296263e9",
+        "type": "ha-entity-config",
+        "server": "9e87348d.9c1c48",
+        "deviceConfig": "4eaaca1b829b7144",
+        "name": "National Severe Thunderstorm Warnings",
+        "version": 6,
+        "entityType": "sensor",
+        "haConfig": [
+            {
+                "property": "name",
+                "value": "National Severe Thunderstorm Warnings"
+            },
+            {
+                "property": "icon",
+                "value": "mdi:weather-lightning"
+            },
+            {
+                "property": "entity_picture",
+                "value": ""
+            },
+            {
+                "property": "entity_category",
+                "value": ""
+            },
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+                "property": "device_class",
+                "value": ""
+            },
+            {
+                "property": "unit_of_measurement",
+                "value": "warnings"
+            },
+            {
+                "property": "state_class",
+                "value": "measurement"
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         "type": "function",
@@ -29579,6 +29646,58 @@
             []
         ]
     },
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+        "type": "mqtt in",
+        "z": "ebd5561c4f077718",
+        "g": "d96ff91f5f860dcc",
+        "name": "Severe Thunderstorm Warning - National",
+        "topic": "weather/alerts/general/severe_thunderstorm_warning",
+        "qos": "2",
+        "datatype": "auto-detect",
+        "broker": "fd29421fc00140a8",
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+        "name": "National Severe Thunderstorm Warnings",
+        "entityConfig": "3983b0de296263e9",
+        "version": 0,
+        "state": "payload.count",
+        "stateType": "msg",
+        "attributes": [
+            {
+                "property": "alerts",
+                "value": "payload.alerts",
+                "valueType": "msg"
+            },
+            {
+                "property": "tornado_possible",
+                "value": "payload.tornado_possible",
+                "valueType": "msg"
+            }
+        ],
+        "inputOverride": "allow",
+        "outputProperties": [],
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+        "y": 720,
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     {
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         "type": "ha-select",