they make it work for 12 hours a day. >> our thanks to mike hydek.l school e- mail us at cool schools at wusa9.com. >>> prince george's county is a little greener on this arbor day. students and staff at the robert cross elementary school planted some trees and for the 27th consecutive year the county received the tree city u.s.a. award. >>> from trees to flowers they will be all over the place at the washington national cathedral flower mart festival. honoring the country of austria and there will be a special international exhibit. plant sales. features a singer. >> great place to pick up things for mom. >> always great stuff there. >> and the weather is going to be cooperating kind of for the most part today. and for the most part this week. >> there. >> lots of silve lining. >> up around frederick rumble of thunder there. some lightening just north of frederick now crossing on the east side of 270. another little storm just behind it actually. loudoun county pushing into montgomery county. some of us won't even see a shower tonight. all right, ri