Max Verstappen remains wary of the threat of rain across the Miami Grand Prix weekend after setting a rapid pace in second practice.
The Red Bull driver had underlined his confidence in FP1 with early benchmark times only bettered by both Mercedes and Charles Leclerc, who all set their fastest laps at the end of a red-flag disrupted session.
But with all cars completing qualifying simulations concurrently in FP2, Verstappen was untouchable and finished 0.385secs faster than Ferrari's Carlos Sainz.
"It was a good day," said Verstappen.
"Initially, it was getting used to the track a bit - it was ramping up a lot throughout the day.
"I always felt good in the car and we had good balance in it.
"It is still slippery off-line but on the driving line, it is ok. As soon as you get off line there is a lot less grip. It is the same for everyone."
Wet weather has been forecast to hit Miami across the weekend and could prove an unwanted curveball for Red Bull given its dominance across the first four races of the campaign.
"There are still a few little things we need to look at [overnight]," added two-time World Champion Verstappen.
"Ideally, we want to be fast on every corner but that is not always possible but we also have to see what the weather will do."