923 FXUS65 KGGW 231620 AFDGGW NORTHEAST MONTANA AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GLASGOW MT 920 AM MST TUE NOV 23 1999 SHORTWAVE TROUGH OVER EASTERN MONTANA WILL MOVE EAST INTO THE DAKOTAS TODAY AS ANOTHER WEAKER WAVE APPROACHES THE AREA FROM SOUTHERN CANADA. DOWNSLOPE CONDITIONS AND NEUTRAL TEMPERATURE ADVECTION WILL RESULT IN MAX TEMPERATURES CLOSE TO YESTERDAYS. CURRENT ZONES LOOK GOOD. NO UPDATES PLANNED. WATERHOUSE GGW 011 044/018/047 GDV 011 046/019/048