PocketGrib 1.0.5

the author of this app says:

With PocketGrib you can download, view and analyse global weather data.

Wind, preciptation, pressure, temperature and wave data extracted from GRIB files are displayed through our simple interface.

Perfect for sailors (both sailing and in the pub), windsurfers, outdoor enthusiasts...

Features
- Choose your map location and have weather information overlaid
- Mapped weather can be animated
- Weather can be viewed as a meteogram (graph) or raw data
- Configurable download to minimise file sizes (great for roaming)
- GRIB files can be downloaded to your PC via iTunes
- Displays online or offline

Pocket Grib downloads and displays the following weather types:
- Wind speed and direction (10 m above mean sea level)
- Precipitation (rain, snow etc)
- Pressure
- Air temperature
- Waves
- Cloud cover
- Relative humidity
- CAPE (Convective Atmospheric Potential Energy)
Direct download of GRIB data from NOAA's GFS (Global Forecast System) model
- Forecasts up to 8 days
- Data steps: 3hr, 6hr, 12hr
- Worldwide Coverage
- Resolution: 0.5°, 1°, 2°
- Data updated 4 times a day (every 6 hours)

What's New in version 1.0.5

- Support for relative humidity, cloud cover and CAPE (Convective Atmospheric Potential Energy)
- Weather legend/key shown for the various weather parameters
- GRIB download size limit increased to 1000KB

Requirements

Requires iOS 3.2 or later