[MCD] SWOMCD

Wed Apr 19 06:42:55 UTC 2006

ACUS11 KWNS 190640
SWOMCD
SPC MCD 190640 
SDZ000-NDZ000-MTZ000-WYZ000-191245-

MESOSCALE DISCUSSION 0555
NWS STORM PREDICTION CENTER NORMAN OK
0140 AM CDT WED APR 19 2006

AREAS AFFECTED...SERN MT AND THE BLACK HILLS REGION

CONCERNING...HEAVY SNOW AND NEAR BLIZZARD CONDITIONS 

VALID 190640Z - 191245Z

HEAVY SNOW IS EXPECTED THROUGH THE NIGHT WITH HRLY RATES OF AT LEAST
1 IN/HR. STRONG WINDS WILL FURTHER MAINTAIN NEAR BLIZZARD
CONDITIONS.

RADAR TRENDS INDICATE AN INCREASING BAND OF SNOW ACROSS WRN SD AS OF
630Z...WHICH IS IN AGREEMENT WITH LATEST RUC/NAM/WRF MODELS
INDICATING INCREASING PRECIPITATION RATES THROUGH 12Z ACROSS FAR
SERN MT AND WRN SD. STRONG NWLY UPSLOPE FLOW WILL KEEP HEAVIEST
PRECIP. RATES FOCUSED ACROSS THE NRN BLACK HILLS. WHILE WINDS WILL
BE STRONG...RELATIVELY WARM TEMPERATURES IN THE 30S WILL HELP
MITIGATE DRIFTING...ALTHOUGH VISIBILITIES WILL BE REDUCED TO ZERO AT
TIMES.

..JEWELL.. 04/19/2006

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

ATTN...WFO...BIS...UNR...BYZ...GGW...

44690489 45570542 46350565 46820527 46910440 46440356
46180344 45180310 44400308 43940346 43930422 

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