272 FXUS64 KTSA 190048 AFDTUL EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OKLAHOMA 648 PM CST TUE MAR 18 2003 QUICK UPDATE TO ZONES TO RAISE POPS ACROSS WESTERN ARKANSAS AS REGIONAL RADARS SHOWING BROAD REGION OF PRECIP LIFTING NORTHWARD. ADDITIONAL MODEL DATA SUPPORTS AN EXTENDED PERIOD OF RAIN ACROSS PORTIONS OF NORTHEAST OKLAHOMA. RADAR TRENDS WILL CONTINUE TO BE MONITORED ALONG WITH LATEST PRECIP AMOUNT REPORTS TO DETERMINE WHERE/IF ANY FLASH FLOOD WATCHES ARE WARRANTED. FORECAST ID= 07 .TSA... AR...NONE. OK...NONE.