FNUS28 KWNS 070949 FWDD38 DAY 3-8 FIRE WEATHER OUTLOOK NWS STORM PREDICTION CENTER NORMAN OK 0448 AM CDT SUN SEP 07 2008 VALID 091200Z - 151200Z ...DISCUSSION... INCREASED POTENTIAL FOR BOTH WIND-DRIVEN AND DRY TSTM THREATS APPEAR TO BE CENTERED ON DAY 3/TUE OVER PORTIONS OF THE GREAT BASIN. MODEL FORECASTS ARE REASONABLY CONSISTENT WITH DEPICTING THE DEVELOPMENT OF A LARGE-SCALE UPPER-LEVEL TROUGH IN THE WRN CONUS BY EARLY WED. HOWEVER...SMALLER-SCALE DIFFERENCES ARE APPARENT WITH THE EVOLUTION OF A LEAD SHORT WAVE TROUGH FROM THE PACIFIC NW...AND WITH A MORE POTENT UPSTREAM WAVE DIGGING FROM BRITISH COLUMBIA SWD TOWARDS THE NRN INTERMOUNTAIN WEST. THIS HAS PROFOUND EFFECTS ON THE STRENGTH OF KINEMATIC FIELDS OVER THE NRN GREAT BASIN AND MONSOONAL MOISTURE BEING ENTRAINED NEWD OVER THE ERN GREAT BASIN. AS SUCH...LOWER-THAN-AVERAGE CONFIDENCE EXISTS IN DEMARCATING CRITICAL AREAS ATTM AND WILL DEFER TO LATER OUTLOOKS FOR POSSIBLE UPGRADES. ..GRAMS.. 09/07/2008 ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...