John Hall wrote:

Referring to the expected dry interval between rain this afternoon and more
rain tonight, the young female weather presenter on the regional BBC South
news programme (I think her name might have been Holly Green) called it a
"suckers' gap". (In placing the apostrophe I've assumed that there would
be more than one sucker.)

That's a phrase often used by marine weather forecasters briefing North Sea
operators when discussing a transient ridge of high pressure bringing a very
short interval of relatively light winds that's not long enough to carry out
many weather sensitive operations.

--
Norman Lynagh
Tideswell, Derbyshire
303m a.s.l.