I'd use an enquiring index finger to fossick down in the dirt of the pot to see if I could detect anything like a sprout coming up. If I could - I'd move the pot out for more moisture.

If I couldn't - I'd have some fresh mix on hand - just in case - and I'd decant the whole lot into a big dish or onto the potting bench to see if there was anything left.

The bulbs might have shrunk away to littles and be only fit to grow on but not flower. Or crumpled bundles of papery shells which can go on the compost heap if you're running one.

The littles I'd put into a much smaller pot - and label, and put into an area getting more rain.

If they're still a fair size and putting out roots - be ultra-careful with them. Put enough fresh mix in the pot to give at least three inches of wiggle room, gently put in the bulbs with all the root ball, then ensure there's about four to six inches of mix over the top before you put the pot out for rain and sun. There should be enough slow release in the fresh mix that you needn't add any extra.

If the mix is dry, water the pot's contents - even if it is going to deluge tonight.