National Weather Service Raw Text Product

337 
FXUS63 KLSX 010850
AFDSTL

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ST LOUIS MO
245 AM CST SUN DEC 1 2002

ANOTHER ROUND OF SEE-SAW TEMPERATURES IN STORE FOR THE AREA OVR THE 
NEXT 2 DAYS BFR DP CD AIR BCMS MORE FIRMLY ENTRENCHED FOR TUE AND 
BYD.  BIG QUESTION FOR TDA IS JUST HOW MUCH WARM-UP WE WILL SEE AS 
CD CAN AIR DEPARTS. LRG SFC HI IS CNTRD OVR ERN OK ATTM AND THE 
COMBO OF LGT WNDS AND VERY LOW DPTS HAS RESULTED IN SOME PRETTY 
CHILLY TMPS...A BIT COLDER THAN XPCTD OVR NRN MO/WC IL WHERE SFC 
FLOW HAS ALREADY BCM WLY.  SFC HI FCST TO CONT SINKING SWD TDA WITH 
INCRSG SW FLOW AS THE DAY PROGRESSES.  MDLS SHWG GD LOW LVL WAA... 
HOWEVER INSPITE OF THIS AND ABUNDANT SUNSHINE...THERE ARE INDCTNS 
THAT THE WARMER MOS GUID IS OVERDONE.  ALL THE MDL 2M TMPS SUPPORT 
THIS SCENARIO AND SUGGEST THE MAV NUMBS ARE MORE CORRECT AND THEY 
MAYBE A TAD WARM.  I WL KP WITH HIGHS TDA AT OR JUST BLO THE MAV. 

THE TMPS TNGT ARE AGAIN THE MAIN CHALLENGE.  WL SEE AN INCRS IN HI 
CLDS AND MDLS ALL SHWG A DECENT GRADIENT.  WHILE DPTS WL INCRS THE 
AIR HOWEVER WL RMN DRY AND THIS WL PRBLY LEAD TO SOME TRICKY LOWS 
TNGT.  IN GNRL THE FWC LKS A BIT WARM AND HV ONCE AGAIN LEANED TWDS 
THE COOLER GUID - THE ETA MOS.  

NEXT CDFNT ON TRACK TO MOV ACRS THE CWFA ON MON.  THE 00Z MDLS AND 
NEW 06Z ETA ARE ALL QUITE SIMILAR IN TIMING MOVG THE FNT FM NRN 
MO/CNTRL IL AT 12Z INTO SE MO/SRN IL BY 00Z WED AS HI PRES BLDS SWD 
OUT OF SC CAN.  PRETTY IMPRSV CAA NOTED IN THE WAKE OF THE FNT 
HOWEVER NOT MUCH MSTR SO APPEARS THAT THE FNT SHUD COME THRU DRY. WL 
SPLIT THE FWC/ETA MOS FOR HIGHS. 

WL LEAN TWDS MORE CLDS THAN PRVS FCST IN THE POST-FRONTAL AIR AND 
TWEEK TMPS DOWN A TAD.  WILL ALSO KP THE FCST DRY FOR NOW IN THE 
MIDWEEK TIME FRAME.  NEW GFS GENERATING SOME SCT LGT PCPN AND POPS 
BUT NOTHING IN THE WAY OF LIFT.  WUD LIKE TO SEE SOME FRCG TO 
SUPPORT THE THREAT OF PCPN BFR INTRODUCING SOMETHING OF THE FROZEN 
VARIETY.
 
.STL...NONE 
GLASS