All three days of this week's opening Formula 1 pre-season test at the Circuit de Barcelona-Catalunya are set to be held in dry conditions.
Wednesday's running, which begins at 09:00 local time, will begin with clear blue skies and an air temperature of 10 degrees Celcius. This will climb by around five degrees as the day goes on, with track action coming to a close at 18:00 local time.
What about the rest of the week?
Chilly but sunny conditions are set to continue through the week, with no rain currently forecast for the three days of testing.
Thursday is set to start with the air temperature at 10 degrees Celcius, before rising to 15 degrees at midday, and gradually dropping back down through the afternoon. It will be a similar story on Friday, albeit a couple of degrees cooler.
However, should there be no rain, plans have been made for the track to be artificially dampened during Friday's lunch break to allow for Pirelli to gather much-needed data on their wet tyre compounds.
With F1 pre-season testing getting underway in Barcelona this week, our journalists Dieter Rencken, Mike Seymour and Thomas Maher look ahead to what to expect.