What is ASCAT?

May 2, 2023. | By: Craig McPheeters

The purpose of these models is to provide timely ocean wind observations. ASCAT wind data can act as a source of truth for what the actual wind was at a time and location on the ocean.

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CCA weather seminar discussion on GFS, ECMWF and HRRR

Apr 27, 2020. | By: Craig McPheeters

The Cruising Club of America recently posted videos from their 2020 weather seminar. Several presenters discussed GFS, GFS related to ECMWF, HRRR and other interesting weather topics.

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Ensemble standard deviation and more!

Mar 7, 2019. | By: Craig McPheeters

LuckGrib macOS v3.3 and iOS v1.4 now have support for ensemble statistical information, as well as being able to show the original control member at the same time as the ensemble average. This new ability should be of interest to everyone interested in studying long range weather forecasts

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PRMSL vs. MSLET for sea level pressure in GFS

Updated: Mar 22, 2021. | By: Craig McPheeters

GFS has two parameters representing sea level pressure: PRMSL and MSLET. LuckGrib is using MSLET to represent sea level pressure. This tutorial explains why that is and how the data is delivered to you

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Introduction to NBM Oceanic winds

Aug 24, 2018. | By: Craig McPheeters

The National Blend of Models (NBM) is available in several different domains. The oceanic domain contains probabilistic data, which is an interesting new source of information. This article discusses probabilisic wind data briefly

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Introduction to Passage Planning on macOS

Updated: Nov 6, 2019. | By: Craig McPheeters

LuckGrib version 1.2 introduced some new features to help support passage planning. This tutorial demonstrates how some of these functions work, using a passage the author completed in November 2015 as an example.

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Import Directories

Dec 7, 2015. | By: Craig McPheeters

One of the main scenarios where import directories are intended to be used is when you have your own source of GRIB files and you want LuckGrib to import them with the minimum amount of effort.

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Nerd talk: Stationary points - highs and lows

Dec 6, 2015. | By: Craig McPheeters

The points on weather maps that identify highs and lows have the more general name of stationary point. The discovery and positioning of stationary points is one more area that LuckGrib excels - however this comes with one little caveat, and a bit of an apology…

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Nerd talk: Interpolation Part Two: Wind

Dec 5, 2015. | By: Craig McPheeters

Math is wonderful. However, if application developers are not careful with how they use it, an application can report wildly incorrect results for common weather features. LuckGrib doesn’t have this problem. Some other GRIB viewers do.

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Nerd talk: Interpolation Part One: Contours

Dec 4, 2015. | By: Craig McPheeters

The contours generated by LuckGrib are much higher quality than in most other GRIB viewers. Read on to understand a little more about one of the techniques behind this advantage.

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