OK, not a 'flarepath' as such.
But..... Many years ago I was an Air Trafficer at Lossie.
One night, a Bucc and a Seaking were night flying (keeping me from the bar) when the weather unexpectedly clamped. Cloudbase on the deck, vis less than 100m.
I was dispatched to the RVR Tower to count the number of runway lights I could see, as the only Bucc airborne was attempting a PAR to land.
The down the runway view was dogsh*t, so the Bucc decided to stooge around (loads of fuel) to see if an improvement happened.
Then, the Seaking began a PAR.
It took for ages. Forward speed 20, maybe 30 knots. Eventually a single headlight was seen and a Seaking (more or less) hover taxyied past me and did a full run down the runway.
What was amazing (at least, I'd never seen it before) is that the Seaking, on the PAR flightpath, had 'bored' a tunnel through the murk. The Bucc took advantage of 'the clear tunnel', and did a rapid PAR to land.
He commented, on taxying in, that he got full visual length of the runway at 7 miles on the Glidepath, but up, down, left, right the vis was dog.
A SAR 'flarepath'? Maybe.