SWODY3
SPC AC 010707
DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0207 AM CDT SAT NOV 01 2008
VALID 031200Z - 041200Z
...NO SVR TSTM AREAS FORECAST...
...SYNOPSIS...
A SERIES OF SPEED MAXIMA/SHORT WAVE IMPULSES WITHIN A STRONG PACIFIC
POLAR JET ARE FORECAST TO MAINTAIN AND SUPPORT EASTWARD DEVELOPMENT
OF BROAD UPPER TROUGHING ACROSS THE EASTERN PACIFIC AND WESTERN
STATES THROUGH THIS FORECAST PERIOD. THIS IS EXPECTED TO EXTEND
ACROSS THE INTERMOUNTAIN WEST AND ROCKIES...THROUGH THE NORTHERN
PLAINS BY 12Z TUESDAY...AS A SIGNIFICANT IMPULSE LIFTS OUT OF THE
GREAT BASIN...AHEAD OF A STRONGER IMPULSE SHIFTING EASTWARD ACROSS
THE CENTRAL PACIFIC COAST. THIS PATTERN WILL FAVOR SURFACE
TROUGHING TO THE LEE OF THE ROCKIES...AND A STRENGTHENING SOUTHERLY
LOW-LEVEL FLOW THROUGH MUCH OF THE PLAINS/UPPER MISSISSIPPI VALLEY.
HOWEVER...A LINGERING SOUTHERN BRANCH TROUGH ACROSS THE GULF OF
MEXICO...AND ASSOCIATED LOW-LEVEL RIDGING ACROSS MUCH OF THE GULF
COAST...WILL PRECLUDE SUBSTANTIAL MODIFICATION OF THE GULF BOUNDARY
LAYER AND A STRONG INLAND RETURN FLOW OF MOISTURE.
THUS...CONVECTIVE POTENTIAL IS EXPECTED TO REMAIN LOW ACROSS MUCH OF
THE NATION MONDAY/MONDAY NIGHT.
..KERR.. 11/01/2008
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