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The Randox Grand National 2018 Festival at Aintree begins on Thursday 12th April and the big race itself is run at 17:15 on Saturday 14th April. The weather can be a very important factor. To large extent it determines what the going will be like and individual horses may prefer particular conditions.
By Paul (Finishing Post At Aintree) [CC BY 2.0], via Wikimedia Commons
Computer models show the UK sandwiched between high pressure to the east of the UK and low pressure to the west during the Aintree Festival period.
The charts below are from today's GFS06z model and are valid for Saturday 14th April. The key things the plots show for Grand National day are:
1) Temperatures are looking reasonable for the time of year. Values are in the mid teens Celsius and in sunny spells it should feel pleasant.
2) There is a risk of showery rain. However there is a reasonable chance of it staying dry and washout conditions are not expected.
At the time of this update [11:45 BST, 11/04] the weather prospects for the Aintree Festival are reasonable. Mild or even quite warm conditions are favoured but there is a risk showers. A further update will be issued on 12/04. To check the latest forecast use the links below.
High resolution 3 day hour by hour (best for 0 to 3 days ahead).
16 day forecast for Aintree which updates every 6 hours (best for 4 to 7 days ahead).
Those of you who want to follow things in more depth should follow the 16 day probability forecast for Liverpool which updates every 6 hours. This shows the range of outcomes the GEFS computer model considers possible (best for more than 7 days ahead).
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14 day outlook
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7 day forecast
16 day forecast
16 day risk