Trigger API according to the input

I'm building a weather dashboard and it has two options to get input. City/ Country name or Lattitude/ Longitude.
I want to update my dashboard every 30 seconds.
If City/ Country was given as input, I want to update the relevant OpenWeatherMap API every 30 seconds and get new data.
If Lattitude/ Longitude. was given as input, I want to update the relevant OpenWeatherMap API every 30 seconds and get new data.
The problem I'm facing is, that when I change the input type (ex: city/ county to lat/lon) in the middle, the program starts updating both APIs in 30-second intervals.

This is how my current flow looks

Combine the two into a trigger that sends "stop" then 50ms later sends latest msg object. follow that trigger with another trigger set to resend every x seconds, and reset if payload = "stop". then you would only require one openweather node.
e.g.

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Does the weather really change that fast ? Are there rate limits on hitting that API ?

This does not work as intended.
As long as I keep giving one type of input (say city/ country), it works. But, when I change the input type to (lat/ lon), the OpenWeather API keeps getting the last inputs from the previous input type.

[
    {
        "id": "b9a073da.96b51",
        "type": "ui_button",
        "z": "58e87bcc.806654",
        "name": "",
        "group": "4f271a00.762388",
        "order": 0,
        "width": 0,
        "height": 0,
        "passthru": false,
        "label": "Submit",
        "tooltip": "",
        "color": "",
        "bgcolor": "",
        "className": "",
        "icon": "",
        "payload": "true",
        "payloadType": "bool",
        "topic": "",
        "topicType": "str",
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        "color": "",
        "bgcolor": "",
        "icon": "",
        "payload": "true",
        "payloadType": "bool",
        "topic": "",
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        "type": "function",
        "z": "58e87bcc.806654",
        "name": "",
        "func": "if(msg.payload){\n    return{\n        location : {\n            country : flow.get(\"country\"),\n            city : flow.get(\"city\")\n        }\n    }\n}",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 240,
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        "wires": [
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        "type": "function",
        "z": "58e87bcc.806654",
        "name": "",
        "func": "if(msg.payload){\n    return{\n        location : {\n            lat : flow.get(\"lat\"),\n            lon : flow.get(\"lon\")\n        }\n    }\n}\n",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 260,
        "y": 1100,
        "wires": [
            [
                "51c93547576fdd44"
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    },
    {
        "id": "51c93547576fdd44",
        "type": "trigger",
        "z": "58e87bcc.806654",
        "name": "",
        "op1": "stop",
        "op2": "",
        "op1type": "str",
        "op2type": "payl",
        "duration": "50",
        "extend": false,
        "overrideDelay": false,
        "units": "ms",
        "reset": "",
        "bytopic": "all",
        "topic": "topic",
        "outputs": 1,
        "x": 210,
        "y": 980,
        "wires": [
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    },
    {
        "id": "f5ac289be727292e",
        "type": "trigger",
        "z": "58e87bcc.806654",
        "name": "",
        "op1": "",
        "op2": "0",
        "op1type": "pay",
        "op2type": "str",
        "duration": "-15",
        "extend": false,
        "overrideDelay": false,
        "units": "s",
        "reset": "stop",
        "bytopic": "all",
        "topic": "topic",
        "outputs": 1,
        "x": 410,
        "y": 900,
        "wires": [
            [
                "f185e542.8805d8"
            ]
        ]
    },
    {
        "id": "f185e542.8805d8",
        "type": "openweathermap",
        "z": "58e87bcc.806654",
        "name": "",
        "wtype": "current",
        "lon": "",
        "lat": "",
        "city": "",
        "country": "",
        "language": "en",
        "credentials": {},
        "x": 650,
        "y": 900,
        "wires": [
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    },
    {
        "id": "cc7905cae328210c",
        "type": "debug",
        "z": "58e87bcc.806654",
        "name": "debug 1",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "true",
        "targetType": "full",
        "statusVal": "",
        "statusType": "auto",
        "x": 700,
        "y": 780,
        "wires": []
    },
    {
        "id": "4f271a00.762388",
        "type": "ui_group",
        "name": "Input city/country",
        "tab": "152c952d.14cc0b",
        "order": 1,
        "disp": true,
        "width": "5",
        "collapse": false
    },
    {
        "id": "212c669d.fce9ba",
        "type": "ui_group",
        "name": "Input latitude/longitude",
        "tab": "152c952d.14cc0b",
        "order": 2,
        "disp": true,
        "width": "6",
        "collapse": false
    },
    {
        "id": "152c952d.14cc0b",
        "type": "ui_tab",
        "name": "Weather",
        "icon": "dashboard",
        "order": 1,
        "disabled": false,
        "hidden": false
    }
]

Then Use a switch and filter if has property city, and have two openweather nodes, or use a http request node and construct the http request
here is a http request example add you api key in the function node.

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The free call limit is -

60 calls/minute
1,000,000 calls/month

The weather does not change that fast, but this is a requirement of the project I'm working on.
The rate limits are not mentioned. I use the current weather data free version