As hundreds of volunteers put the finishing touches on Rose Parade floats, float designers are keeping an eye on the weather.
"The flowers actually like it cool and damp, or even rainy now during the week. We don't like it to rain too much, because that can affect people showing up for decorating," according to Dave Pittman of the Phoenix Decorating Company.
Pittman said that if it were to rain on Rose Parade day, there are some calculations that have to be made.
"Just the dew point in the air effects the weight of Mums once they're on a float. Half a million flower heads on a float, that each gain a little bit of weight with water, and it's factored in, because suddenly you have an extra half-ton of weight," said Pittman.
The storms on the east coast are also a special concern form some floats, like the "Donate Life" float, which is supposed to have 26 riders.
"We have individuals who are flying out from New York, from Illinois, and there is a blizzard happening on the east coast, so we can't get some of our people out here," according to Paula Castanon, part of the "Donate Life" float.
Most of the riders were selected a year in advance, and because of the nature of the float, substituting riders is not easily done.
"Some of the individuals who are riding were chosen because they are either an organ recipient, a tissue recipient, or they were a living donor," according to Paula Castanon, part of the "Donate Life" float.
Tough shoes to fill, with the parade only days away.