# 🌡️ PolyWeather: Real-time Weather Query & Analysis Bot

An intelligent weather bot for prediction markets and professional weather betting. Fetches ultra-fresh data directly from global weather stations, bypassing CDN caches, and provides automated trend analysis with **model consensus scoring** and **entry timing signals** in plain language.

## 🚀 Quick Start

### Requirements

- **Python 3.11+**
- Dependencies: `pip install -r requirements.txt`
- **Environment Variables**: Set `TELEGRAM_BOT_TOKEN` in `.env` (required). Optionally set `METEOBLUE_API_KEY` for London high-precision forecasts.

### VPS Deployment (Recommended)

**First-time setup:**

```bash
git clone https://github.com/yangyuan-zhen/PolyWeather.git
cd PolyWeather
pip install -r requirements.txt
cp .env.example .env  # Edit .env with your Token and API Keys
```

**Create one-click update script (run once):**

```bash
cat > ~/update.sh << 'EOF'
#!/bin/bash
cd ~/PolyWeather
git fetch origin
git reset --hard origin/main
pkill -f run.py
pkill -f bot_listener.py
sleep 1
nohup python3 run.py > bot.log 2>&1 &
echo "✅ Updated and restarted!"
EOF
chmod +x ~/update.sh
```

**Daily updates (after each code push):**

```bash
~/update.sh
```

> One command: pull latest code → kill old process → start new process. No branch conflict handling needed.

### Local Development (Windows)

```bash
py -3.11 run.py
```

> Local machine is for editing code and Git push only. IDE import errors are expected (dependencies not installed locally) and do not affect VPS operation.

---

## 🤖 Telegram Bot Commands

| Command        | Description            | Usage                                          |
| :------------- | :--------------------- | :--------------------------------------------- |
| `/city [name]` | **Query City Weather** | Get detailed forecasts, METAR & trend analysis |
| `/id`          | **Get Chat ID**        | Retrieve your current Telegram Chat ID         |
| `/help`        | **Help**               | Display all available commands                 |

### Supported Cities

| City | Aliases | METAR Station | Extra Sources |
|:---|:---|:---|:---|
| London | `lon`, `伦敦` | EGLC (City Airport) | Meteoblue |
| Paris | `par`, `巴黎` | LFPG (Charles de Gaulle) | — |
| Ankara | `ank`, `安卡拉` | LTAC (Esenboğa) | MGM |
| New York | `nyc`, `ny`, `纽约` | KLGA (LaGuardia) | NWS |
| Chicago | `chi`, `芝加哥` | KORD (O'Hare) | NWS |
| Dallas | `dal`, `达拉斯` | KDAL (Love Field) | NWS |
| Miami | `mia`, `迈阿密` | KMIA (International) | NWS |
| Atlanta | `atl`, `亚特兰大` | KATL (Hartsfield-Jackson) | NWS |
| Seattle | `sea`, `西雅图` | KSEA (Sea-Tac) | NWS |
| Toronto | `tor`, `多伦多` | CYYZ (Pearson) | — |
| Seoul | `sel`, `首尔` | RKSI (Incheon) | — |
| Buenos Aires | `ba`, `布宜诺斯艾利斯` | SAEZ (Ezeiza) | — |
| Wellington | `wel`, `惠灵顿` | NZWN (Wellington) | — |

### Example

```
/city 巴黎
/city london
/city par
```

---

## ✨ Key Features

### 1. 🏛️ Multi-Source Data Fusion

| Source                  | Role                    | Coverage        | Strength                                                                    |
| :---------------------- | :---------------------- | :-------------- | :-------------------------------------------------------------------------- |
| **Multi-Model (5 NWP)** | **Consensus Scoring**   | Global          | ECMWF, GFS, ICON, GEM, JMA — 5 fully independent NWP models via Open-Meteo |
| **Open-Meteo**          | Base Forecast           | Global          | 72h hourly curves, sunrise/sunset, **sunshine duration**, **shortwave radiation** |
| **Open-Meteo Ensemble** | **Uncertainty Range**   | Global          | 51-member ensemble: median, P10, P90 spread for confidence assessment       |
| **Meteoblue (MB)**      | Precision Consensus     | London Only     | Multi-model aggregation; excellent for microclimates                        |
| **METAR**               | **Settlement Standard** | Global Airports | Polymarket settlement source; real-time airport observations                |
| **NWS**                 | Official (US)           | US Only         | US National Weather Service high-fidelity forecasts                         |
| **MGM**                 | Observations (Turkey)   | Ankara Only     | Turkish State Met Service: pressure, cloud cover, feels-like, 24h rainfall  |

> ⚠️ **All NWP model queries use airport coordinates** (matching METAR station), not city center. This eliminates systematic bias between forecast and settlement locations.

**Open-Meteo API Architecture**: Three API calls go through the same platform, each serving a different purpose:

```
                    Open-Meteo (API Platform)
                          │
            ┌─────────────┼─────────────┐
            │             │             │
     ┌──────┴──────┐      │      ┌──────┴──────┐
     │ /forecast   │      │      │ /forecast   │
     │ (default)   │      │      │ ?models=... │
     │ = best_match│      │      │ = multi-model│
     └──────┬──────┘      │      └──────┬──────┘
            │             │             │
            ▼             │             ▼
     Auto-selects best    │      Returns each model
     model (≈ ECMWF)      │      ECMWF / GFS / ICON
     → Hourly curves      │      GEM / JMA
     → Sunrise/sunset     │      → Consensus scoring
     → Sunshine/radiation │
                   ┌──────┴──────┐
                   │  /ensemble  │
                   │  51 members │
                   └──────┬──────┘
                          │
                          ▼
                   Median / P10 / P90
                   → Uncertainty range
```

> 💡 The OM default forecast is essentially **one of the 5 models** (auto-selected), so it is **excluded from consensus scoring** to avoid double-counting.

### 2. ⚡ Ultra-Fresh Data (Zero-Cache)

- **Dynamic Timestamps**: Every API request includes a unique token to force servers to bypass CDN caches.
- **MGM Real-time Sync**: Specialized header camouflaging and timezone correction for Turkish API.

### 3. 🎯 Multi-Model Consensus Scoring

The bot queries **5 independent NWP models** (ECMWF, GFS, ICON, GEM, JMA) to rate forecast agreement:

| Level | Condition (°C / °F) | Meaning |
|:---|:---|:---|
| 🎯 **High** | Spread ≤ 0.8°C / 1.5°F | All 5 models converge — high confidence, low risk |
| ⚖️ **Medium** | Spread ≤ 1.5°C / 3.0°F | Minor disagreement — moderate confidence |
| ⚠️ **Low** | Spread > 1.5°C / 3.0°F | Major divergence — high uncertainty, wait for more data |

Primary models: **ECMWF IFS** (Europe), **GFS** (US NOAA), **ICON** (Germany DWD), **GEM** (Canada), **JMA** (Japan). Plus Meteoblue (London) and NWS (US) when available. Ensemble median is excluded to avoid double-counting.

### 4. 📊 Ensemble Forecast Spread (NEW)

Fetches 51-member ensemble forecasts from Open-Meteo to quantify prediction uncertainty:

> 📊 **Ensemble**: Median 10.8°C, 90% range [9.5°C - 12.1°C], spread 2.6°.

A tight range = high confidence in the forecast. A wide range = the atmosphere is chaotic, higher risk.

**Deterministic vs Ensemble Divergence Detection**: When the OM deterministic forecast exceeds the ensemble P90 or falls below P10, the bot flags it. If actual observations later verify the forecast, the warning upgrades to a ✅ **Forecast Verified** message.

### 5. ⏰ Entry Timing Signal (NEW)

A composite score combining three factors to advise on betting timing:

| Factor | Score |
|:---|:---|
| Peak already passed | +3 |
| ≤ 2h to peak | +2 |
| ≤ 4h to peak | +1 |
| Model consensus: High | +2 |
| Model consensus: Medium | +1 |
| Actual ≈ Forecast (gap ≤ 0.5°) | +2 |
| Actual close to Forecast (gap ≤ 1.5°) | +1 |

| Total ≥ | Signal | Advice |
|:---|:---|:---|
| 5 | ⏰ **Ideal** | Low uncertainty — good to bet |
| 3 | ⏰ **Good** | Consider small positions |
| 2 | ⏰ **Cautious** | Keep observing |
| <2 | ⏰ **Not Recommended** | High uncertainty — wait |

### 6. 🧠 Smart Trend Analysis (Plain Language)

The bot generates human-readable insights automatically:

- **🚨 Forecast Breakthrough Alerts**: Detects when METAR observed max exceeds all forecast highs.
- **⏱️ Peak Window Prediction**: Identifies the exact hours when today's high is expected.
- **🌬️ Wind Direction Cross-Validation**: Compares METAR and MGM wind data; alerts on conflicts (>90° difference).
- **☁️ Cloud Impact Analysis**: Evaluates cloud cover's effect on warming potential.
- **📉 Pressure Analysis**: Low pressure indicates warm/moist air passage.
- **🌧️ Rain Detection**: Cross-validates METAR weather codes with actual rainfall data to avoid false positives.
- **📊 Max Temperature Time Tracking**: Shows exactly when the daily high was recorded (e.g., `最高: 12°C @14:20`).
- **☀️ Weather Condition Summary**: Synthesizes METAR phenomena + cloud cover into a single glanceable icon + text (e.g., `⛅ Partly Cloudy`).
- **🌤️ Solar Radiation Analysis**: Tracks cumulative shortwave radiation vs. daily total; warns when clouds severely block sunlight.
- **🌙 Warm Advection Detection**: Identifies when peak temperature occurred during zero-radiation hours (e.g., 3 AM), proving the high was driven by warm air mass rather than solar heating.

### 7. 📊 Risk Profiling

Every city has a data bias risk profile based on airport-to-city-center distance:

- 🔴 **High Risk**: Seoul (48.8km), Chicago (25.3km) — large bias expected
- 🟡 **Medium Risk**: Ankara (24.5km), Paris (25.2km), Dallas, Buenos Aires — systematic bias
- 🟢 **Low Risk**: London (12.7km), Wellington (5.1km) — reliable data

### 8. 🌅 Enhanced Display

- **Sunrise/Sunset + Sunshine Hours**: `🌅 07:34 | 🌇 18:29 | ☀️ 9.9h`
- **Weather Condition at a Glance**: `✈️ 实测 (METAR): 9°C | ⛅ Partly Cloudy | 15:00`
- **WU Settlement Preview**: Shows the Wunderground-rounded value for settlement reference.

---

## 🏗️ System Architecture

```mermaid
graph TD
    User[/Telegram User/] --> Bot[bot_listener.py]
    Bot --> Collector[WeatherDataCollector]

    subgraph "Data Engine"
        Collector --> MM[Multi-Model API<br/>ECMWF/GFS/ICON/GEM/JMA]
        Collector --> OM[Open-Meteo Forecast]
        Collector --> ENS[Open-Meteo Ensemble]
        Collector --> MB[Meteoblue API]
        Collector --> NOAA[METAR / NOAA]
        Collector --> MGM[MGM Observations]
        Collector --> NWS[US NWS API]
    end

    Collector --> Processing[Consensus Scoring & Trend Analysis]
    Processing --> Bot
    Bot --> Response[/Betting Snapshot with Entry Signal/]
```

- **Logic Decoupling**: `weather_sources.py` handles data fetching & parsing; `bot_listener.py` handles analysis & rendering.
- **City Config**: `city_risk_profiles.py` contains all METAR station mappings and risk assessments.
- **Multi-Model Consensus**: 5 independent NWP models (ECMWF, GFS, ICON, GEM, JMA) for robust consensus scoring.
- **Ensemble Integration**: 51-member ensemble provides P10/P90 uncertainty bands and divergence detection.
- **Airport-Aligned Coordinates**: All NWP queries target METAR station coordinates, not city centers.

---

## 🎯 Betting Strategy Tips

1. **Check Model Consensus**: The 🎯/⚖️/⚠️ rating tells you immediately if the forecast is reliable.
2. **Use the Entry Signal**: Wait for ⏰ **Ideal** or **Good** timing before placing bets. Don't bet early when uncertainty is high.
3. **Watch Ensemble Spread**: A tight 90% band (< 2°) means model confidence is high — this is where edges live.
4. **Watch the Peak Window**: Use `/city` frequently during predicted peak hours.
5. **Settlement Priority**: Settlement is always based on **METAR** data, rounded to integer via Wunderground.
6. **Geographic Risk**: Pay attention to bias warnings, especially for high-risk cities like Seoul and Chicago.
7. **Solar Radiation Clues**: If the bot reports "warm advection driven" 🌙, the temperature was pushed by warm air, not sunlight — this pattern often breaks model predictions.
8. **Wind Conflicts**: When METAR and MGM show opposite wind directions, expect temperature volatility.

---

_Last updated: 2026-02-22_