000 TTAA00 KRAP 141517 AREA FORECAST DISCUSSION FOR WESTERN SD AND NORTHEASTERN WY NATIONAL WEATHER SERVICE RAPID CITY SD 820 AM MST SUN MAR 14 1999 UPDATED FORECAST FOR HIGH TEMPERAURES. 12Z KUNR SOUNDING HAS SHALLOW INVERSION...AND MIXING OUT INVERSION GIVES A HIGH TEMPERATURE OF 54F. ONLY SIGNIFICANT SNOW COVER ON PLAINS JUST NORTH AND EAST OF BLACK HILLS...WITH MOST OF IT EXPECTED TO MELT TODAY. .UNR...NONE. KRC