SWODY2
SPC AC 061622
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1022 AM CST TUE NOV 06 2007
VALID 071200Z - 081200Z
..NO TSTM AREAS FORECAST...
..SYNOPSIS...
MODELS INDICATE THAT A HIGHLY AMPLIFIED NEGATIVELY TILTED
LARGE-SCALE UPPER TROUGH WILL PERSIST ACROSS MUCH OF EASTERN STATES
THROUGH THIS FORECAST PERIOD. THE PRIMARY EMBEDDED IMPULSE...IN THE
FORM OF A CLOSED LOW...IS PROGGED TO LIFT AWAY FROM THE NORTHEASTERN
STATES AND WEAKEN. AS THIS OCCURS...THE CENTER OF A LARGE COLD
SURFACE RIDGE IS EXPECTED TO GRADUALLY SHIFT EAST OF THE OZARK
PLATEAU INTO THE CENTRAL APPALACHIANS BY LATE WEDNESDAY NIGHT/EARLY
THURSDAY. BUT...RIDGING IS PROGGED TO LINGER ACROSS MUCH OF THE
GULF COAST...AND SIGNIFICANT GULF OF MEXICO AIR MASS
MODIFICATION/RETURN FLOW IS NOT LIKELY. WITH THE ENVIRONMENT ALSO
REMAINING GENERALLY DRY/STABLE BENEATH AN UPPER RIDGE ACROSS THE
WESTERN STATES...POTENTIAL FOR THUNDERSTORMS ACROSS THE U.S. APPEARS
NEGLIGIBLE THROUGH 12Z THURSDAY AND BEYOND.
.KERR.. 11/06/2007
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