This is a must read for people living in Phoenix, AZ; Reno, NV; Bakersfield, CA; Las Vegas, NV; Yuma, AZ; Los Angeles metropolitan area, CA ; San Diego metropolitan area, CA; Oxnard-Thousand Oak, CA.; Riverside, CA.; Salt Lake City, UT; Birmingham, AL; Greenville, NC; Knoxville, TN; Denver, CO – or anybody living in D3 or D4 areas on the map below.