000 FXUS65 KTFX 161545 AFDTFX SOUTHWEST AND NORTH CENTRAL MONTANA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREAT FALLS MT 845 AM MST SAT FEB 16 2002 ...MINOR UPDATES TO ZONES AND STATE FORECAST... .SHORT TERM...SLIGHTLY NEGATIVE-TILT RIDGE OVER THE NRN ROCKIES IS PUSHED TO ERN MT TODAY AS UPPER LOW OFF THE CA COAST PUSHES ONSHORE. WEAK VORTICITY LOBE IN SW FLOW ALOFT IS ENHANCING BAND OF MOISTURE PUSHING INTO FAR SW MT THIS MORNING. SEVERAL SURFACE OBSERVATIONS SITES IN ID ARE REPORTING MOSTLY CLOUDY SKIES...SO WILL CHANGE MOSTLY SUNNY FORECAST IN SW ZONES TO INDICATE INCREASING CLOUDS TODAY. REMAINDER OF FORECAST APPEARS TO BE ON TRACK...BUT WILL KEEP A CLOSE EYE ON SURFACE WINDS OVER THE PLAINS ZONES SINCE GTF ALREADY BLOWING AT ABOUT 20 MPH. MPJ .EXTENDED...ZONAL FLOW AT THE BEGINNING OF THE EXTENDED PERIOD WHICH WILL CONTINUE DRY AND WARM CONDITIONS. WEAK RIDGING CONTINUES THRU 00Z THU FOR A WARMING TREND. A SHORTWAVE APPROACHES WESTERN MONTANA FRIDAY...BUT AFFECT THRU FRIDAY SHOULD BE LIMITED. ZELZER .CCF NUMBERS GTF UB 055/032 050/024 042 13000 EEBEB 020/037 022/041 030/050 024/042 024 -1111000011 CTB UB 055/030 048/020 038 13000 NEBEB 016/037 020/039 027/046 022/040 022 -1111000011 HLN BE 048/022 046/022 042 130-1 EEBBB 020/037 022/043 029/051 025/044 025 12111111111 BZN BE 035/015 032/018 030 13011 EEBBB 017/037 018/041 020/045 020/040 020 32222100011 WEY BE 025/000 025/005 022 13012 EEBBB 017/037 018/041 020/045 020/040 020 62333200022 DLN BE 040/020 040/020 032 13011 EEBBB 018/038 018/042 020/045 022/041 022 31022100011 HVR UB 056/024 045/012 040 13000 EEBBB 020/037 020/040 027/050 022/040 022 -1111000011 LWT UB 050/025 046/022 038 13000 EEBBB 018/035 019/040 025/047 023/040 023 -2111000011 .TFX...NONE.