# Weather Engine

> Weather Engine (iPhone/iPad app by Heebok Lee.)

- Source: https://appshunter.io/ios/app/weather-engine/id6788181920 (this page in markdown: same URL + `.md`)
- Developer: [Heebok Lee](https://appshunter.io/developer/1855773499)
- Category: Weather, Reference
- Price: Free
- Age rating: 4+
- Requires: iOS 13.0 · 65 MB
- Languages: American English
- Released: 2026-07-16
- Data updated: 2026-09-04
- User reviews in markdown: https://appshunter.io/ios/app/weather-engine/id6788181920/reviews.md

## What is Weather Engine?

**Weather Engine**

Weather Engine is a professional weather visualization and forecasting application designed for users who want to understand weather beyond ordinary forecasts. Unlike traditional weather apps, Weather Engine combines numerical weather prediction, satellite imagery, radar observations, and interactive weather maps — now including full aviation altitude charts — into a single intuitive interface.

Powered by NOAA Global Forecast System (GFS) data and a high-performance native weather engine, the application delivers smooth, precise visualization of atmospheric conditions directly on your device, from the surface up to the jet stream.

**Key Features**
- NOAA Global Forecast System (GFS) forecasts
- Real-time satellite imagery
- Weather radar observations
- Temperature maps and isotherms
- Sea-level pressure contours (isobars)
- Aviation altitude mode: 850/700/500/300 hPa constant-pressure charts with geopotential height contours and level wind
- Wind streamlines with animated flow, from the surface to jet-stream altitude
- Relative humidity visualization
- Forecast precipitation
- Interactive weather timeline
- Coastline and border outline overlay, so land and sea stay legible under any weather layer
- Touch any location to view detailed weather information
- Automatic weather layer management based on observation and forecast availability
- Optimized rendering for iPhone and iPad

**Aviation Altitude Mode**
Weather Engine now goes beyond the surface. Slide from mean sea level up through the standard aviation constant-pressure levels — 850, 700, 500, and 300 hPa — to see the same geopotential height contours and wind fields pilots read on a real constant-pressure chart. Whether you're studying a ridge at 500 hPa or checking jet-stream wind ahead of a flight, the map adjusts contour spacing and range automatically for each level, and animated wind streamlines scale to stay legible even at jet-stream speed.

**Professional Weather Analysis**
Weather Engine allows users to combine multiple atmospheric variables on one map, making it easy to understand relationships between:
- Pressure and wind
- Temperature and fronts
- Humidity and precipitation
- Radar and forecast rainfall
- Satellite imagery and cloud systems
- Surface conditions and upper-level flow

**Built for Global, Seamless Viewing**
The map renders continuously wherever you look — panning smoothly across the international date line, staying correctly aligned while rotated, and covering wide regions without gaps, even when zoomed far out over an ocean or a full continent. Radar and rain tiles are rendered at higher fidelity, and the new coastline/border outline option keeps geography readable no matter how many weather layers are stacked on top.

**Suitable for**
- Weather enthusiasts
- Outdoor activities (hiking, camping)
- Sailing & fishing
- Pilots & drone operators
- RF and microwave engineers
- Amateur radio operators
- Teachers, students, and researchers

**Interactive Timeline**
Move seamlessly through time to explore past observations, current weather, and future forecasts. Weather layers automatically appear or disappear depending on data availability, and the altitude slider works alongside the timeline so you can track how a pressure surface evolves over the next five days.

**Native High-Performance Engine**
Combines Flutter with a native C++ weather engine for efficient GRIB2 decoding and smooth visualization of NOAA weather data, tuned with adaptive level-of-detail so contours, heatmaps, and wind particles stay sharp at every zoom level from a single country to a full hemisphere.

**Data Sources**
- NOAA Global Forecast System (GFS)
- Weather Radar
- Satellite Imagery

**Privacy**
Weather Engine does not collect personal weather data. Location access is used only to display weather conditions around your current position.


## Version history (last 5 releases)

### 1.2.8 — 2026-07-21

Added real coastline outlines and clearer place labels on top of every weather layer, so land, islands, and cities stay identifiable even under dense cloud, heatmap, or satellite imagery (toggle available in map controls)

### 1.2.7 — 2026-07-20

Fixed an issue where temperature shown at a selected aviation pressure level (850/700/500/300 hPa) could incorrectly display the surface temperature instead of the temperature at that level.

### 1.2.6 — 2026-07-19

What's New

Aviation altitude mode: view 850/700/500/300 hPa charts with height contours and wind
Improved continuity of weather data near the international date line
Extended the zoom range by one level in and out
Denser isobar/isotherm detail at high zoom levels
Improved rain radar tile quality
Radar now only appears for the time window it actually covers
Added a new coastline/border outline option so land and sea stay legible under weather overlays (toggle available in map controls)
General map rendering stability improvements

### 1.1.9 — 2026-07-17

Key updates include:

Updated the weather satellite imagery system by integrating the latest available satellite data from multiple weather satellite sources, providing more current and reliable satellite images.
Improved the wind visualization engine by refining the wind direction and wind speed calculations so that wind particles and vectors align more accurately with the actual geographic map coordinates.
Optimized the rendering engine to improve overall stability and performance.

### 1.1.7 — 2026-07-17

No release notes.

## More apps by Heebok Lee

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All apps by Heebok Lee: https://appshunter.io/developer/1855773499

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-04.*