NORTHEAST AND NORTH CENTRAL COLORADO AREA FORECAST DISCUSSION
NWS DENVER COLORADO
AFDDEN 755 PM MST WED JAN 26 2000
SHORT TERM DISCUSSION: ISSUED A SNOW ADVSY FOR ZNS 34/36/37 ERLIER
AS RADAR WAS SHOWG THE MOST PERSISTENT BANDING IN THAT VICINITY WITH
ECHO STRENGTH INCREASING OVER TIME. SATELLITE PICTURES HAVE BEEN
SHOWING THE CENTER OF CIRCULATION MOVG INTO THE NW CORNER OF NM
WHILE THE RADAR HAS BEEN SHOWING A LITTLE CURL IN THE REFLECTIVITY
OVR PARK COUNTY. THIS MESOSCALE VORTICITY SIGNATURE APPEARS TO BE
USHERING IN THE END OF THE HEAVIER SNOWFALL. HAVE RECEIVED A REPORT
OF 6 INCHES OF SNOW NR FAIRPLAY IN NRN ZN 37 ALONG WITH SEVERAL
REPORTS OF AFTN SNOW BTWN 2 AND 6 INCHES IN OTHER FTHL TOWNS OF ZN
36. MSAS MSL PRES CHARTS SHOW SFC LOW IS IN NE NM WITH PRES FALLS
DRAGGING IN SEWD OVR TIME. THERE IS NO STRONG HIGH PRES SURGE TO
OUR NORTH...SO SE CO IS GOING TO BE THE MAIN BENEFACTOR FM THIS
STORM SINCE SELY UPSLP FLOW WL BE BEST FOR THEM. ACARS SOUNDINGS
ARE ONLY SHOWING 10-15 KTS OF NELY WINDS UP TO 12KFT MSL AND A
THERMAL PROFILE WITH CONDITIONAL INSTABILITY. LATEST WSR-88D DATA
IS ALSO SHOWING HINTS OF DRIER AIR MOVING INTO THE NE HALF OF THE
FCST AREA. AFTER A FEW MORE HOURS EXPECT SFC LOW TOO BE MOVG FAR
ENOUGH INTO TX PANHANDLE TO ALLOW ADDL DRY AIR TO SPREAD OVR THE
PLAINS...BRINGING SNOW EVENT TO AN END. WL LET THE ADVSY CONT A FEW
MORE HRS...BUT WILL BRING IT DOWN BEFORE MIDNIGHT.
KDRBY/BAKER
.DEN...SNOW ADVSY THIS EVENING FRONT RANGE FOOTHILLS SOUTH OF
BOULDER COUNTY...ZNS 34/36/37.