Severe Storm Outlook Narrative (AC)
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 
000
ACUS11 KWNS 271146
SWOMCD
SPC MCD 271145
TXZ000-271345-

MESOSCALE DISCUSSION 0105
NWS STORM PREDICTION CENTER NORMAN OK
0545 AM CST FRI FEB 27 2015

AREAS AFFECTED...PARTS OF THE TX S PLAINS AND LOW ROLLING PLAINS

CONCERNING...HEAVY SNOW

VALID 271145Z - 271345Z

SUMMARY...LOCALIZED HEAVY SNOWFALL RATES OF 1.0-1.5 INCH PER HOUR
ARE POSSIBLE OVER THE NEXT FEW HOURS ACROSS PARTS OF THE TX S PLAINS
AND LOW ROLLING PLAINS.

DISCUSSION...RADAR MOSAIC OVER THE PAST FEW HOURS HAS SHOWN THE
DEVELOPMENT OF A MAINLY W TO E ORIENTED SNOW BAND FROM LAMB COUNTY
EWD TO KING COUNTY TX.  OBSERVATIONS FROM THE LBB VICINITY SHOW
SNOWFALL RATES IN THE 1.0-1.5 INCH PER HOUR RANGE ACCOMPANYING THE
SNOW BAND.  WATER VAPOR IMAGERY SHOWS A VIGOROUS SHORTWAVE TROUGH
MOVING ACROSS N-CNTRL NM EARLY THIS MORNING AND THIS FEATURE WILL
MOVE INTO WRN PORTIONS OF THE TX S PLAINS/PANHANDLE REGIONS OVER THE
NEXT FEW HOURS.  LARGE-SCALE ASCENT ACCOMPANYING THE MID-LEVEL
DISTURBANCE COUPLED WITH FRONTOGENESIS IN THE H7-H6 LAYER IS BEING
MANIFEST INTO A LOCALIZED HEAVY SNOW BAND OVER THE TX S PLAINS.
MODEL GUIDANCE SHOWS THE MAXIMA IN H7-H5 UVV/S SPREADING EWD FROM TX
S PLAINS INTO THE LOW ROLLING PLAINS OVER THE NEXT 2 HOURS.  AS A
RESULT...EXPECT A SLIGHT ENEWD MOTION TO THE FRONTOGENETIC SNOW BAND
THROUGH 1345Z.

..SMITH.. 02/27/2015

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

ATTN...WFO...OUN...LUB...

LAT...LON   33969971 33539999 33820188 34360190 33969971
USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.