From NXEC's site, which, saints preserve us, appears to contain USEFUL INFORMATION:
At 1745, the Met office has issued a severe weather warning for 12 March affecting the East Coast route. Severe gales with gusts of up to 80mph have been forecast between 0900-1400, easing mid afternoon.
Journey times are expected to be doubled between the North East/Yorkshire and London Kings Cross due to services running at a maximum speed of 50 mph during this period.
It is advisable that unless your journey is essential, to defer your journey. Tickets will be valid for travel on Thursday 13 March.

is it my imagination, but when I check the live depature boards for PBO there are trains missing, not saying cancelled, just missing....
07:46 (EC) and 07:59 FCC as two examples.
Spooky.