948 FXUS63 KBIS 080310 AFDBIS AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BISMARCK ND 910 PM CST THU FEB 7 2013 .DISCUSSION...HAVE DECIDED TO LET THE DENSE FOG ADVISORY EXPIRE. TIOGA IMPROVING TO ONE HALF MILE...AND DONT SEE WIDESPREAD DENSE FOG AT THIS TIME. ALSO SEEING MID TO HIGH CLOUDS THICKENING OVER THE WEST WHICH SHOULD SLOW/LIMIT THE LOW LEVEL TEMPERATURE EFFECTS THAT SEEM TO AID IN FOG FORMATION UNDER CLEAR SKIES. STRATUS CAN BE SEEN RETURNING ACROSS THE WEST. STILL THINK THE MID HIGH CLOUDS WILL LIMIT THE EXTENT OF STRATUS...BUT LOOKS LIKE IT WILL REACH DICKINSON...WILLISTON MAYBE. && .AVIATION...AT 9 PM CST...A WARM FRONT EXTENDED ACROSS NORTHEAST MONTANA INTO FR SOUTHWEST NORTH DAKOTA. EAST OF THIS AREA WIDE SPREAD IFR CONDITIONS WILL PERSIST THROUGH THE NIGHT. NOW LOOKS LIKE CLOUDS AND IFR CONDITIONS WILL RETURN TO KDIK BETWEEN 9 PM AND MIDNIGHT. WILL BE CLOSE AT KISN BUT MAY STAY CLEAR AS MIDDLE CLOUDS THICKENING. PATCHY AREAS OF FREEZING DRIZZLE ARE POSSIBLE ANYWHERE STRATUS AND FOG EXISTS...WHICH IS BASICALLY KMOT/KBIS/KJMS AND KDIK. HOWEVER MUCH TO SPOTTY TO INCLUDE IN TAF. && .BIS WATCHES/WARNINGS/ADVISORIES... NONE. && $$ SHORT TERM...WAA AVIATION...WAA