On Dec 9, 5:35 pm, "BlueLightning"

I notice there is no talk about the depth of this weekend's low
pressure

On the latest advisory, 932 millibars by noon Sunday, 230 miles
south-west of Iceland.

Not a record beater..... but man, that is deep

Yes, you're the first to mention it, I think, so well done. I
have been monitoring the UKMO forecasts for the last 5 days and last
Tuesday's T+132 (verified Sunday 1200Z) shows a Low 927 at 60 N 38 W,
not far from the T+24 yesterday. I think this is remarkably good
seeing that the explosive deepening of this low did not start until
late Friday. The subsequent forecasts (T+120, T+96 etc) also show the
troughing NE'wards over Iceland to form a separate Low to the NE of
Icland. As you say, not a record breaker but it qualifies as a "bomb",
deepening at more than 2xsin latitude mb/hr over a 24-hr period. (I
think that is the criterion).

Tudor Hughes, Warlingham, Surrey.