With forecast this late, it will most likely happen this early morning.
I have a couple of friends come and place a tarp over my citruses tonight. I'll turn on the camping stove in between canopies under the tarp, at very low flame setting and place some water in the pot. Will keep it on from 4 am to 7 am. I really wanted to have those fruits from UCR budwood collection that are blooming now.
http://www.kcra.com/severeweather/1582497/detail.html
Central Sacramento Valley
Freeze Warning:
Issued at: 1:49 PM PST 2/15/06, expires at: 10:00 PM PST 2/15/06
Freeze warning remains in effect from midnight tonight to 9 am pst Thursday,
Cold and dry air will settle over the region tonight. With clear skies and light winds, overnight low temperatures will drop below freezing in most areas. Especially cold temperatures are expected in rural areas away from large cities. Temperatures in the valleys will bottom out in the 25 to 30 degree range early tomorrow morning.
Several record low temperatures may be broken tonight. These include 28 at redding, 30 at sacramento executive airport, 27 at red bluff, 30 at downtown sacramento, 28 at stockton and 29 at modesto.
A freeze warning means sub-freezing temperatures are imminent or highly likely. These conditions can harm crops and other sensitive vegetation.