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3
Sep
07:58


GFS model charts

Metcheck GFS Model Charts


About this page


These are the latest NCEP GFS model weather charts at Metcheck.

The maps below show a variety of weather variables and are in 6 hour intervals out to 192 hours then every 12 hours out to 384 hours ahead. The images begin updating at 4.30am, 10.30am, 4.30pm and 10.30pm (BST) and take approx 90 mins to complete.

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Weather Variable
Continent
Forecast Hours (6-192hrs)
6 12 18 24 30 36 42 48 54
60 66 72 78 84 90 96 102 108
114 120 126 132 138 144 150 156 162
168 174 180 186 192
Forecast Hours (192-384hrs)
204 216 228 240 252 264 276 288 300 312 324 336 348 360 372 384
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Sea Level Pressure - Plotted using isobars displaying the pressure levels in contours
3hr Rainfall - Displays sea level pressure and the accumulated 3hr rainfall amounts
2m Temperature - The forecast temperature in centigrade at 2m above ground
Freezing level - This is also known as the zero degree isotherm and shows the height at which all air above is freezing or below
Rain/Snow - This shows you whether precipitation will fall as sleet or.... snow.
850mb Temperature - This is the temperature of the air at the 850mb pressure level. This is the height at which day and nighttime heating have no effect on the atmosphere
CAPE - This is the amount of convective potential of the atmosphere for the creation of thunderstorms
Cloud Cover/Thickness - This displays the cloud cover, rainfall and thickness of the air showing how precipitation is likely to fall.
10m Wind Speed/Gust - This is the forecast wind direction and gust wind speed at 10m above the ground

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Ensembles are clever things. If you ask a weather forecaster whether it will rain next week, they will probably say "Well, it may do. Or it may not...". That really isn't very helpful, so this is where ensembles come into play.

Every 6 hours, the GFS weather model is run not once, but 20 times and this gives us a fantastic tool to see how many of the model runs agree with each other. Click on the tools below for more information on ensemble forecasting.

Discussions ▼

Wouldn't you love to be a fly on the wall at Metcheck Towers? Sadly, our offices are spotless and if you were a fly we'd probably squish you with a rolled up newspaper before you even heard what we talk about.

The Metcheck Forecasters Discussion page is a behind the scenes look at how we are following developing weather situations. We always add one each day and sometimes far more frequently if a critical weather day develops. In the Forecast Discussions you'll see how we are following developing situations and with our expert knowledge of numerical models we can give you an insight as to whether the models should be trusted or not.

Model Time Plots ▼

No, it's not something out of Dr Who! The GFS Time Plotter allows you to scan the entire dataset of the latest GFS model run and find out the maximum, minimum and average values of all the weather variables.

This feature is especially handy when it comes to perhaps totaling up rain values, or finding the highest wind speeds.... but it doesn't do time travel, we've tried.