129 
FXUS63 KGRB 230941
AFDGRB

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREEN BAY WI
330 AM CST TUE NOV 23 1999

MAIN CHALLENGE TDY INTO TNT IS DEALING WITH PCPN.  NOT SO MUCH GETTING
IT BUT TIMING ITS ENDING.

WAA PCPN WELL ON ITS WAY INTO THE CWA SO NO NEED FOR POP MENTN.  SINCE
AN EARLIER ARRIVAL AND MOVG INTO THE HIGHER TERRAIN OF THE NORTH WITH
THE POTENT OF EVAP COOLING FROM THE DRY AIR...WILL MENTN A MIX UP THERE
BEFORE TURNING TO ALL RAIN.  ISOLD TSRA MOVG INTO FAR SW WI.  TSRA ASSOC
WIHT THE VORT AND LEADING EDGE OF THE WAA.  WAA WILL PUSH RATHER QUICKLY
ACRS THE CWA THIS AM AND THEN THE VORT WILL MOVE OVER THE CWA THE REST
OF THE AFTN BEFORE DEPARTING THIS EVENING.  MUCH OF THE FCST AREA
BECOMES DRY SLOTTED...SO PCPN MAY COME TO AN END MUCH EARLIER THAN
EXPECTED...SO WL GO WITH CHC POPS ACRSS THE SRN AREAS OF THE CWA.
SYSTEM PULLS OUT QUICKLY OVERNIGHT...WITH RAIN CHANGING TO SNOW BEFORE
ENDING.  WATER VAPOR LOOPS SHOW SRN EDGE APPEARS TO BE DVPLG WEST OF THE
CWA SO WL NOT MENTN ANY ACCUM IN THE ZONES.   THERE IS SOME POTENTIAL
FOR SOME LAKE ENCHANCE SNOW FOR NW VILAS COUNTY BY MORNING...BUT WINDS
MAY NOT BE FAVORABLE AT THIS TIME...SO WL LET DAY CREW TAKE ANOTHER LOOK
AT THAT. 

GUID TEMPS IN THE BALLPARK WITH THE GOING FCST AND LATEST TRENDS SO
LITTLE ADJUSTMENT NEEDED.  

COOR WITH MQT.  
  
.GRB...NONE.

HELMAN
WWW.CRH.NOAA.GOV/GRB