21. The Pacific Northwest will be dry as an upper-level ridge of high pressure develops over the area. 22. Sunshine will be abundant in the Southeast as a ridge of high pressure moves across the region. 23. An expansive ridge of high pressure will dominate conditions from the northern Plains to the Deep South. 24. Monday, a ridge of high pressure will build northward over California, allowing mountain snows to taper off. 25. But the warm ridge of high pressure over the West has been a paragon of prevailing light winds. 26. As the ridge of high pressure expands northward, it will check the advance of a weak cool front. 27. Downstream of this brewing cauldron of lows, a ridge of high pressure will hold steady in western Canada. 28. That day, a ridge of high pressure strengthened to the north of the storm, leaving weaker steering currents. 29. A ridge of high pressure building into Oregon will draw warmer, dry air from the deserts into California. 30. Heat will intensify across Florida Sunday as a warm ridge of high pressure builds over the Sunshine State.