Freezing rain can never "see" directly freezing rain, rain or snow on weather radars, Doppler or conventional. However, it is possible to estimate the area covered by freezing rain with radars indirectly. The intensity of the radar echoes (reflectivity) is proportional to the form (water or ice) of the precipitation and its diameter. In fact, rain has much stronger reflective power than snow but its diameter is much smaller. So the reflectivity of rain coming from melted snow is only slightly higher. However, in the layer where the snow is melting, the wet flakes still have a large diameter and are coated
David Sleet lower the legal blood alcohol content (BAC) limit to 0.08 percent for drivers in the United States. This recommendation helped inform the U.S. Congress which mandated states adopt the stricter BAC limit of 0.08 percent by October 2003 or risk losing a portion of their highway funding. By 2004 all 50 states had passed 0.08 percent laws for drivers, making it the new national standard. Dr. Sleet has received numerous public health awards including the following: He has served on the following editorial boards: David Sleet David A. Sleet is an American scientist recognized for championing the application of behavioral