really have been the last couple of days. in fact look at the setup when it comes to the offshore component of the winds. higher elevations the cooler air, once it goes to the lower elevation heights heats by way of compression. any time you compress air, you warm it up. essentially like taking a bicycle pump and compressing the air testimony heats the air up. -- air up. heats the air up. and with the storm system on the horizon, we expect thing to cool heading into tuesday. another close to 0-degree day in the forecast -- 90-degree day in the forecast in los angeles before it drops off. phoenix, a cooling trend toward wednesday and thursday. on the other side of the united states heat also the theme. air surging north. some of the warmest weather of the northern plains since october. of course the snow melt has been prevalent. 63% of the u.s. had snow on the ground as of two weeks ago. now 10%. we leave with video out of the