192 
FXUS43 KUNR 280341
AFDRAP

AREA FORECAST DISCUSSION FOR WESTERN SD AND NORTHEASTERN WY
NATIONAL WEATHER SERVICE RAPID CITY SD
840 PM MST SAT DEC 27 1997

WV AND IR SATELLITE IMAGERY SHOW THE SHORT WAVE CENTER MOVING 
EAST-SOUTHEAST OVER SOUTH CENTRAL SOUTH DAKOTA. KBLX AND SURFACE 
OBSERVATIONS IN NORTHEAST WYOMING CONCUR WITH IR IMAGERY IN SHOWING 
AN END TO THE SNOW IN THE PAST HOUR. KUDX AGREES WITH IR IMAGERY OF 
THE MAIN BAND OF SNOW 50 MILES EITHER SIDE OF A LINE FROM PHILIP TO 
RAPID CITY. IN ADDITION...KUDX SHOWS PERSISTENT UPSLOPE SNOW 
PRODUCTION IN THE NORTHERN AND CENTRAL BLACK HILLS.

THE ZONE FORECASTS AND WARNINGS HAVE ALREADY BEEN UPDATED...THE 
MAJOR CHANGES BEING UPGRADING TO A WINTER STORM WARNING FOR SOUTHERN 
CAMPBELL AND WESTON COUNTIES IN WYOMING...AND DOWNGRADING THE 
BLIZZARD WARNING FOR THE NORTHERN BLACK HILLS TO A WINTER STORM 
WARNING. THE AREAL EXTENT OF BLIZZARD-LIKE CONDITIONS IS 
SMALL...SPOTTY...AND LIKELY ENDING SOON...AS THE MAIN QG-FORCING AND 
SNOWBAND MOVE THROUGH THE AREA. HOWEVER...UPSLOPE FORCING WILL 
CONTINUE THROUGH DAYBREAK SUNDAY. 

.UNR...WINT STM WRNG TNGT FOR THE NRN BLACK HILLS
       WINT STM WRNG TNGT FOR SRN CAMPBELL AND WESTON COUNTIES WY
       BLSN ADVY TNGT FOR NRN CAMPBELL AND CROOK COUNTIES WY
       BLSN ADVY TNGT FOR MOST OF WRN SD

ZEITLER   SPECI KUNR 280340Z 34030G45KT 1 1/2SM SN BLSN M01/M02