[BNAWX] Severe Storm Outlook Narrative

[EMWIN Server]

ACUS11 KWNS 282151
SWOMCD
SPC MCD 282151
TNZ000-MOZ000-ARZ000-290145-

MESOSCALE DISCUSSION 2364
NWS STORM PREDICTION CENTER NORMAN OK
0351 PM CST MON NOV 28 2011

AREAS AFFECTED...WRN TN...FAR NERN AR...MO BOOTHEEL

CONCERNING...HEAVY SNOW

VALID 282151Z - 290145Z

SNOWFALL RATES OF 0.5-1 INCH PER HR /LOCALLY HIGHER AMOUNTS/ ARE
ANTICIPATED OVER PORTIONS OF WRN TN...FAR NERN AR...AND THE MO
BOOTHEEL THIS EVENING.

A CLOSED DEEP-LAYER CYCLONE CURRENTLY CENTERED OVER NRN MS /PER
RECENT WATER VAPOR LOOP/ WILL SLOWLY SHIFT EWD OVER THE NEXT SEVERAL
HRS...WITH AN EMBEDDED VORT LOBE ROTATING SWWD ALONG THE NWRN
PERIPHERY OF THE UPPER CYCLONIC CIRCULATION OVER THE MID-MS RIVER
VALLEY. INCREASING ASCENT ASSOCIATED WITH THIS FEATURE...ALONG WITH
WEAK ISENTROPIC UPGLIDE WITH WARM AIR WRAPPING AROUND THE OCCLUDED
LOW...WILL SUPPORT SNOWFALL RATES INCREASING TO 0.5-1 INCH PER HR.
CURRENT RADAR IMAGERY/SFC OBS INDICATE A LARGE SWATH OF
PRECIPITATION /PRIMARILY RAINFALL ATTM/ OVER THE REGION...WITH
ISOLATED LOCATIONS REPORTING SNOW AS OF 2100Z /E.G. KMKL/ WITHIN
COLDER LOWER TROPOSPHERIC TEMPERATURES IN PROXIMITY TO THE
DEEP-LAYER CYCLONE. WITH TIME...NAM/GFS POINT FORECAST SOUNDINGS
INDICATE A TRANSITION TO SNOWFALL IS ANTICIPATED TO OCCUR OVER
ADDITIONAL PORTIONS OF WRN TN...AND EVENTUALLY TO AREAS IMMEDIATELY
W OF THE MS RIVER...WITHIN THE NEXT SEVERAL HRS.

..ROGERS.. 11/28/2011

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

ATTN...WFO...PAH...MEG...

LAT...LON   35018848 35718820 36478902 36458959 36099002 35519028
            35179014 35028985 35018848


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