The surface chart shows near surface weather conditions and is intended to aid in severe weather location. The parameters plotted are 2 meter above ground temperature in Celsius (in color contours, see color bar), convergence (black lines, interval=4, shaded > 0), 2 meter above ground dewpoints in Celsius (colored lines, interval=5, bold orange=20, bold white=15, bold red=0, bold magenta=-15, bold gray=-30) and winds plotted as white vectors.