The inclement weather was a threat to Bradford's League One fixture at home to Crawley Town last Tuesday - a match that saw Liddle serve the second of a two-match ban.
Had that game - which Bradford won 1-0 - been postponed the former Middlesbrough man would have had to sit out the last-eight tie against Championship side Reading at Valley Parade instead.
"I was obviously very nervous looking at that weather forecast," Liddle told Perform.
"Once the pitch inspection got passed and the game kicked off thankfully the weather stayed OK."
"[Playing at Wembley would be] the very top," he added. "As a League One footballer the only realistic chance of getting to Wembley is in a play-off final.
"I know this club was lucky enough to do that [get to Wembley] but it was before my time and I dream for the chance to play at Wembley. It'd be great to do that."
"When I was at Middlesbrough as a kid, Yakubu was there," he said.
"I know him from that time, he's played in a few countries since then but he's gone back to Reading and hit the ground running. He'll be a handful if he does play."
