SWODY1
SPC AC 160430
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1130 PM CDT MON MAR 15 2010
VALID 161200Z - 171200Z
...NO SVR TSTM AREAS FORECAST...
...SYNOPSIS...
AN AMPLIFIED BUT PROGRESSIVE LARGE-SCALE PATTERN WILL EXIST OVER THE
CONUS THROUGH THE DAY ONE PERIOD. OPENING MIDLEVEL WAVE CURRENTLY
OVER THE LOWER RIO GRANDE VALLEY IS FORECAST TO DE-AMPLIFY WHILE
ACCELERATING EWD ACROSS THE NRN GULF OF MEXICO IN ADVANCE OF
UPSTREAM VORTICITY MAXIMUM DIGGING SWD FROM THE UPPER MIDWEST INTO
THE CNTRL PART OF THE NATION. MEANWHILE...STRONG SHORT WAVE TROUGH
OVER THE NERN PACIFIC WILL LIFT NEWD THROUGH THE PACIFIC NW AND THE
BRITISH COLUMBIA COAST INTO THE CANADIAN ROCKIES.
...WA/NWRN ORE COASTS...
A WELL-DEFINED LOW TO MID-TROPOSPHERIC BAROCLINIC ZONE WILL
ACCOMPANY ABOVE-MENTIONED SHORT WAVE TROUGH ONSHORE LATER TODAY.
THIS WILL RESULT IN CONSIDERABLE COOLING OF THE THERMODYNAMIC
PROFILE...YIELDING MUCAPE OF 100-200 J/KG. FORECAST SOUNDINGS
INDICATE THAT SUFFICIENTLY DEEP BUOYANCY WILL DEVELOP BY MID/LATER
AFTERNOON TO SUPPORT SPORADIC LIGHTNING ACTIVITY W OF THE COASTAL
RANGES.
...S TX...
SOME CONVECTIVE DEVELOPMENT WILL BE POSSIBLE TODAY OVER PARTS OF
SERN TX ALONG WEAKENING SURFACE FRONT ATTENDANT TO MIDLEVEL SYSTEM
PROGRESSING THROUGH THE REGION. HOWEVER...FORECAST SOUNDINGS
INDICATE A TENDENCY FOR WARMING ABOVE 700 MB WHICH SHOULD LIMIT THE
POTENTIAL FOR ANY TSTM DEVELOPMENT.
..MEAD/HURLBUT.. 03/16/2010
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