diff --git a/Content.Server/Atmos/Components/WeatherDeviceComponent.cs b/Content.Server/Atmos/Components/WeatherDeviceComponent.cs
index c9b06096fae..837fe4f0b88 100644
--- a/Content.Server/Atmos/Components/WeatherDeviceComponent.cs
+++ b/Content.Server/Atmos/Components/WeatherDeviceComponent.cs
@@ -1,7 +1,56 @@
+using Content.Server.Atmos.EntitySystems;
+using Content.Shared.Weather;
+using Robust.Shared.Prototypes;
+
 namespace Content.Server.Atmos.Components;
 
 [RegisterComponent]
 public sealed partial class WeatherDeviceComponent : Component
 {
+    [DataField]
+    public bool Enabled;
+
+    [DataField]
+    public Dictionary<string, WeatherCycleState> KeyFramesByCycleState = new();
+
+    [DataField]
+    public TimeSpan EnabledChangeTime;
+
+    [DataField]
+    public string DefaultTickSpan;
+
+    public TimeSpan DefaultTickSpanCasted { get; set; }
+
+    [DataField]
+    public WeatherStateMachine? StateMachine;
+
+    public TimeSpan LastChanged = TimeSpan.Zero;
+
+    
+}
+
+[Serializable, DataDefinition]
+public partial record WeatherCycleState
+{
+    [DataField]
+    public ProtoId<WeatherPrototype>? SetWeatherTo = null;
+
+    [DataField]
+    public bool ResetWeather = false;
+
+    [DataField]
+    public float? TargetTemperature = null;
+
+    [DataField]
+    public TimeSpan? WeatherOff;
+
+    [DataField]
+    public string? TickSpan;
+
+    public TimeSpan? TickSpanCasted;
 
+    /// <summary>
+    /// Calculatable
+    /// </summary>
+    public float TickRate { get; set; }
 }
diff --git a/Content.Server/Atmos/EntitySystems/AtmosphereWeatherDeviceSystem.cs b/Content.Server/Atmos/EntitySystems/AtmosphereWeatherDeviceSystem.cs
index 0c8b43faaf9..1f491a65a4d 100644
--- a/Content.Server/Atmos/EntitySystems/AtmosphereWeatherDeviceSystem.cs
+++ b/Content.Server/Atmos/EntitySystems/AtmosphereWeatherDeviceSystem.cs
@@ -1,36 +1,292 @@
+using System.Linq;
 using Content.Server.Atmos.Components;
+using Content.Shared.Atmos;
+using Content.Shared.Maps;
+using Content.Shared.Weather;
+using Robust.Shared.Map;
+using Robust.Shared.Map.Components;
+using Robust.Shared.Prototypes;
 using Robust.Shared.Timing;
 
 namespace Content.Server.Atmos.EntitySystems;
 
 public sealed partial class AtmosphereWeatherDeviceSystem : EntitySystem
 {
-    private TimeSpan _lastChange;
-    private readonly TimeSpan _maxWait = TimeSpan.FromSeconds(15);
-
+    [Dependency] private readonly AtmosphereSystem _atmosphere = default!;
     [Dependency] private readonly IGameTiming _time = default!;
+    [Dependency] private readonly SharedMapSystem _map = default!;
+    [Dependency] private readonly ITileDefinitionManager _tileDefinitionManager = default!;
+    [Dependency] private readonly SharedWeatherSystem _weather = default!;
+    [Dependency] private readonly IPrototypeManager _prototypeManager = default!;
+
+    private readonly Dictionary<WeatherDeviceComponent, List<TileAtmosphere>> _cache = new();
+
+    /// <inheritdoc />
+    public override void Initialize()
+    {
+        SubscribeLocalEvent<WeatherDeviceComponent, ComponentStartup>(OnStartup);
+        SubscribeLocalEvent<WeatherDeviceComponent, ComponentShutdown>(OnShutdown);
+
+        base.Initialize();
+    }
+
+    private void OnStartup(Entity<WeatherDeviceComponent> ent, ref ComponentStartup args)
+    {
+        ent.Comp.EnabledChangeTime = _time.CurTime;
+    }
+
+    private void OnShutdown(Entity<WeatherDeviceComponent> ent, ref ComponentShutdown args)
+    {
+        _cache.Remove(ent.Comp);
+    }
 
     /// <inheritdoc />
     public override void Update(float frameTime)
     {
-        var diff = _time.CurTime - _lastChange;
-        if (diff < _maxWait)
+        var query = EntityQueryEnumerator<WeatherDeviceComponent, TransformComponent>();
+        while (query.MoveNext(out var uid, out var device, out var transform))
         {
-            return;
+            if (!device.Enabled)
+            {
+                continue;
+            }
+
+            device.StateMachine ??= GetStateMachine(device);
+            
+            var diff = _time.CurTime - device.LastChanged;
+            if (diff < (device.StateMachine.Current.TickSpanCasted ?? device.DefaultTickSpanCasted))
+            {
+                return;
+            }
+
+            device.LastChanged = _time.CurTime;
+
+            var map = transform.MapID;
+
+            if (device.StateMachine.TrySwitchState(_time, _time.CurTime, device.EnabledChangeTime))
+            {
+                var targetWeather = device.StateMachine.Current.SetWeatherTo;
+                if (targetWeather != null)
+                {
+                    var endTime = _time.CurTime + device.StateMachine.Current.WeatherOff + TimeSpan.FromSeconds(5);
+                    var weather = _prototypeManager.Index(targetWeather.Value);
+
+                    _weather.SetWeather(map, weather, endTime);
+                }
+            }
+
+            if (!transform.GridUid.HasValue)
+            {
+                continue;
+            }
+
+            var gridUid = transform.GridUid.Value;
+
+            EnsureComp<MapAtmosphereComponent>(transform.MapUid!.Value, out var mapAtmosphere);
+
+            var temperatureChange = device.StateMachine.Current.TickRate;
+            var targetTemperature = device.StateMachine.NextTargetTemp ?? device.StateMachine.Current.TargetTemperature;
+            if (temperatureChange != 0)
+            {
+                if (!_cache.TryGetValue(device, out var list))
+                {
+                    list = new List<TileAtmosphere>();
+
+                    EnsureComp<MapGridComponent>(gridUid, out var grid);
+                    EnsureComp<GridAtmosphereComponent>(gridUid, out var gridAtmosphereComponent);
+
+                    foreach (var (_, tile) in gridAtmosphereComponent.Tiles)
+                    {
+                        var vector = tile.GridIndices;
+                        var entityCoordinates = new EntityCoordinates(gridUid, vector);
+                        var refTile = _map.GetTileRef((gridUid, grid), entityCoordinates);
+                        var tileDef = (ContentTileDefinition)_tileDefinitionManager[refTile.Tile.TypeId];
+                        if (refTile.Tile.IsEmpty || !tileDef.CanCrowbar && tile.Air is { Immutable: false })
+                        {
+                            list.Add(tile);
+                        }
+                    }
+
+                    _cache.Add(device, list);
+                }
+
+                Log.Debug("Changing temp for {count} tiles! {change}",list.Count, temperatureChange.ToString("F1"));
+                bool isCooling = temperatureChange < 0;
+                foreach (var tileAtmosphere in list)
+                {
+                    var mixture = tileAtmosphere.Air!;
+                    if (tileAtmosphere.Air == null)
+                    {
+                        continue;
+                    }
+
+                    if (
+                        targetTemperature != 0
+                        && (
+                            isCooling && mixture.Temperature >= targetTemperature
+                            || !isCooling && mixture.Temperature <= targetTemperature
+                            )
+                        )
+                    {
+                        mixture.Temperature += temperatureChange;
+                    }
+                }
+
+                var currentGas = mapAtmosphere.Mixture;
+
+                if (
+                    targetTemperature != 0
+                    && (
+                        isCooling && currentGas.Temperature >= targetTemperature
+                        || !isCooling && currentGas.Temperature <= targetTemperature
+                    )
+                    )
+                {
+                    if (currentGas.Immutable)
+                    {
+                        currentGas = new GasMixture();
+                        currentGas.CopyFrom(currentGas);
+                    }
+
+                    currentGas.Temperature += temperatureChange;
+                    _atmosphere.SetMapAtmosphere(transform.MapUid!.Value, false, currentGas);
+                }
+
+                
+            }
         }
+    }
 
-        var query = EntityQueryEnumerator<WeatherDeviceComponent, TransformComponent>();
-        while (query.MoveNext(out var uid, out var device, out var transform))
+    private WeatherStateMachine GetStateMachine(WeatherDeviceComponent device)
+    {
+        var deviceDefaultTickSpan = TimeSpan.Parse(device.DefaultTickSpan);
+        device.DefaultTickSpanCasted = deviceDefaultTickSpan;
+
+        var byKeyFrame = device.KeyFramesByCycleState.ToDictionary(
+            x => TimeSpan.Parse(x.Key),
+            x => x.Value
+        );
+
+        var byKeyFrameSequence = byKeyFrame.Select(x => (Span:x.Key,State: x.Value)).ToArray();
+
+        (TimeSpan Span, WeatherCycleState State) lastWeatherChange = default;
+        for (int i = 0; i < byKeyFrameSequence.Length; i++)
         {
-            var gridUid = transform.GridUid;
-            EnsureComp<GridAtmosphereComponent>(gridUid!.Value, out var comp);
-            foreach (var tileAtmosphere in comp.MapTiles)
+            var (currentSpan, currentState)= byKeyFrameSequence[i];
+
+            if (i + 1 < byKeyFrameSequence.Length)
+            {
+                var (nextSpan, nextState) = byKeyFrameSequence[i + 1];
+                if (currentState.TargetTemperature.HasValue && nextState.TargetTemperature.HasValue)
+                {
+                    if (currentState.TickSpan != null)
+                    {
+                        currentState.TickSpanCasted = TimeSpan.Parse(currentState.TickSpan);
+                    }
+
+                    var tickSpan = currentState.TickSpanCasted ?? deviceDefaultTickSpan;
+                    var tickCount = (nextSpan - currentSpan) / tickSpan;
+
+                    currentState.TickRate = (float)((nextState.TargetTemperature.Value - currentState.TargetTemperature.Value) / tickCount);
+                }
+            }
+
+            if (currentState.ResetWeather)
+            {
+                lastWeatherChange.State!.WeatherOff = currentSpan - lastWeatherChange.Span;
+            }
+
+            if (!currentState.SetWeatherTo.HasValue)
             {
-                if (tileAtmosphere.Air != null)
-                    tileAtmosphere.Air.Temperature += 5;
+                continue;
             }
+
+            if (lastWeatherChange == default)
+            {
+                lastWeatherChange = (currentSpan, currentState);
+                continue;
+            }
+
+            lastWeatherChange.State!.WeatherOff = currentSpan - lastWeatherChange.Span;
+            lastWeatherChange = (currentSpan, currentState);
         }
 
-        _lastChange = _time.CurTime;
+        return new WeatherStateMachine(byKeyFrame, Log);
     }
 }
+
+public class WeatherStateMachine
+{
+    private readonly LinkedList<(TimeSpan Span, WeatherCycleState State)> _nodes;
+    private readonly ISawmill _sawmill;
+    private LinkedListNode<(TimeSpan Span, WeatherCycleState State)> _current;
+    private readonly long _fullCycleTime;
+    private readonly LinkedListNode<(TimeSpan Span, WeatherCycleState State)> _last;
+
+    public WeatherStateMachine(Dictionary<TimeSpan, WeatherCycleState> nodes, ISawmill sawmill)
+    {
+        _nodes = new LinkedList<(TimeSpan Span, WeatherCycleState State)>(nodes.Select(x=>(x.Key,x.Value)));
+        _current = _nodes.First!;
+        _last = _nodes.Last!;
+        _sawmill = sawmill;
+        _fullCycleTime = (long)nodes.Keys.Max().TotalSeconds;
+    }
+
+    public bool TrySwitchState(
+        IGameTiming timing,
+        TimeSpan currentTimeInCycle,
+        TimeSpan deviceEnableChangedTime
+    )
+    {
+        var timeSinceEnabled = currentTimeInCycle - deviceEnableChangedTime;
+        var currentSpan = TimeSpan.FromSeconds((long)timeSinceEnabled.TotalSeconds % _fullCycleTime);
+
+        if (currentSpan < _current.Value.Span)
+        {
+            _current = _nodes.First!;
+            _sawmill.Debug(
+                "[{time}] Changed state! {partOfCycle}, {tempDiff}, {targetTemp} {weather}, {off}",
+                timing.CurTime.ToString(@"hh\:mm\:ss"),
+                _current.Value.Span.ToString(@"hh\:mm\:ss"),
+                _current.Value.State.SetWeatherTo?.Id,
+                _current.Value.State.TickRate.ToString("F1"),
+                _current.Value.State.TargetTemperature?.ToString("F1"),
+                _current.Value.State.WeatherOff?.ToString(@"hh\:mm\:ss")
+            );
+            return true;
+        }
+
+        if (currentSpan > _current.Value.Span && currentSpan < _current.Next!.Value.Span)
+        {
+            return false;
+        }
+
+        var next = _current.Next;
+        do
+        {
+            if (next != null && currentSpan >= next.Value.Span)
+            {
+                _current = next;
+                _sawmill.Debug(
+                    "[{time}] Changed state! {partOfCycle}, {tempDiff}, {targetTemp} {weather}, {off}",
+                    timing.CurTime.ToString(@"hh\:mm\:ss"),
+                    _current.Value.Span.ToString(@"hh\:mm\:ss"),
+                    _current.Value.State.SetWeatherTo?.Id,
+                    _current.Value.State.TickRate.ToString("F1"),
+                    _current.Value.State.TargetTemperature?.ToString("F1"),
+                    _current.Value.State.WeatherOff?.ToString(@"hh\:mm\:ss")
+                );
+                return true;
+            }
+
+            next = next!.Next;
+        } while (_current.Next != null && currentSpan > _current.Next.Value.Span);
+
+        return false;
+    }
+
+
+
+    public WeatherCycleState Current { get => _current.Value.State; }
+    public float? NextTargetTemp => _current.Next?.Value.State.TargetTemperature;
+}
diff --git a/Resources/Prototypes/Entities/Structures/Piping/Atmospherics/portable.yml b/Resources/Prototypes/Entities/Structures/Piping/Atmospherics/portable.yml
index a3df9293a4c..d124c9f52d2 100644
--- a/Resources/Prototypes/Entities/Structures/Piping/Atmospherics/portable.yml
+++ b/Resources/Prototypes/Entities/Structures/Piping/Atmospherics/portable.yml
@@ -182,13 +182,47 @@
 
 
 - type: entity
-  id: SpaceHeater2
+  id: WeatherDevice1
   parent: [BaseMachinePowered, ConstructibleMachine]
-  name: space heater 2
-  description: A bluespace technology device that alters local temperature. Commonly referred to as a "Space Heater".
-  suffix: Unanchored
+  name:  weather device
   components:
   - type: WeatherDevice
+    enabled: true
+    defaultTickSpan: "00:00:05"
+    keyFramesByCycleState:
+      "00:00:00":
+        targetTemperature: 293.16
+      "00:00:15":
+        targetTemperature: 283.16
+      "00:00:45":
+        targetTemperature: 273.16
+        setWeatherTo: SnowfallLight
+      "00:01:00":
+        targetTemperature: 250
+      "00:01:30":
+        targetTemperature: 240
+        setWeatherTo: SnowfallMedium
+      "00:01:45":
+        targetTemperature: 230
+        setWeatherTo: SnowfallHeavy
+      "00:02:00":
+        targetTemperature: 230
+      "00:02:15":
+        targetTemperature: 240
+        setWeatherTo: SnowfallMedium
+      "00:02:30":
+        targetTemperature: 250
+        setWeatherTo: SnowfallLight
+      "00:03:00":
+        targetTemperature: 260
+        resetWeather: true
+      "00:03:15":
+        targetTemperature: 273.16
+      "00:03:45":
+        targetTemperature: 283.16
+      "00:04:00":
+        targetTemperature: 293.16
+
   - type: StationAiWhitelist
   - type: Transform
     anchored: false
@@ -241,31 +275,6 @@
   - type: GasThermoMachine
     temperatureTolerance: 0.2
     atmospheric: true
-  - type: Damageable
-    damageContainer: StructuralInorganic
-    damageModifierSet: Metallic
-  - type: Destructible
-    thresholds:
-      - trigger:
-          !type:DamageTrigger
-          damage: 600
-        behaviors:
-          - !type:DoActsBehavior
-            acts: [ "Destruction" ]
-      - trigger:
-          !type:DamageTrigger
-          damage: 300
-        behaviors:
-          - !type:PlaySoundBehavior
-            sound:
-              collection: MetalBreak
-          - !type:SpawnEntitiesBehavior
-            spawn:
-              SheetSteel1:
-                min: 1
-                max: 3
-          - !type:DoActsBehavior
-            acts: [ "Destruction" ]
 
 - type: entity
   parent: SpaceHeater