SPC MD 1958

MD 1958 CONCERNING BLIZZARD FOR PALMER DIVIDE

MESOSCALE DISCUSSION 1958
NWS STORM PREDICTION CENTER NORMAN OK
0905 PM CST MON NOV 16 2015

AREAS AFFECTED...PALMER DIVIDE

CONCERNING...BLIZZARD 

VALID 170305Z - 170700Z

SUMMARY...MODERATE TO HEAVY SNOW WITH SNOWFALL RATES IN EXCESS OF 1
INCH PER HOUR ARE EXPECTED TO PERSIST FOR THE NEXT SEVERAL HOURS
ACROSS THE PALMER DIVIDE IN CO. WIND SPEEDS WILL ALSO INCREASE WITH
THE POTENTIAL FOR SOME LOCALIZED BLIZZARD CONDITIONS.

DISCUSSION...CURRENT OBSERVATIONS HAVE SHOWN A CHANGE FROM RAIN TO
MODERATE SNOW AT DEN IN THE PAST HOUR WITH OTHER DENVER METRO SITES
SHOWING A SIMILAR TREND. FARTHER S...HIGH ELEVATION SITES AROUND
COLORADO SPRINGS ARE REPORTING HEAVY SNOW. CONTINUED/STRENGTHENING
ISENTROPIC ASCENT INTO THE REGION IS EXPECTED AS THE UPPER LOW
MOVING INTO THE PLAINS SLOWS ITS EWD PROGRESS AND DEEPENS. AS A
RESULT...SNOWFALL RATES AT OR ABOVE 1 INCH PER HOUR WILL PERSIST FOR
AT LEAST THE NEXT SEVERAL HOURS WITH SOME EXPANSION OF THE SNOW
EXPECTED AS THE BOUNDARY LAYER CONTINUES TO COOL. IN ADDITION TO
THESE HIGH SNOWFALL RATES...WIND SPEEDS ARE EXPECTED TO INCREASE
WITH GUSTS OVER 35 MPH LIKELY. THESE WINDS COMBINED WITH HEAVY
AND/OR BLOWING SNOW SHOULD DROP THE VISIBILITY
SIGNIFICANTLY...RESULTING IN BLIZZARD CONDITIONS. HIGHEST
PROBABILITY OF BLIZZARD CONDITION CURRENTLY APPEARS TO BE CENTERED
ON WRN ELBERT CO.

..MOSIER.. 11/17/2015

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...PUB...BOU...

LAT...LON   39640498 40000436 40050371 39740364 39290413 38830452
            38600472 38670502 39290511 39640498 

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