Thursday, December 2, 2010

DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 021948
SWODY1
SPC AC 021946

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0146 PM CST THU DEC 02 2010

VALID 022000Z - 031200Z

...NO TSTM AREAS FORECAST...

NO CHANGES TO THE OUTLOOK AT 20Z.

..BROYLES.. 12/02/2010

.PREV DISCUSSION... /ISSUED 0950 AM CST THU DEC 02 2010/

...SYNOPSIS/FORECAST...

A BROAD TROUGH WILL BE MAINTAINED OVER THE ERN CONUS WITH FLAT
RIDGING IN THE W. WITHIN THIS REGIME...A SHORT WAVE TROUGH/JET
STREAK OVER THE MID/LOWER MO VALLEY WILL AMPLIFY WHILE TRANSLATING
SEWD THROUGH THE SERN STATES. ELSEWHERE...A SHORT WAVE TROUGH OVER
THE NERN PACIFIC WILL BECOME INCREASINGLY SHEARED WHILE MOVING
INLAND THROUGH THE PACIFIC NW INTO NRN INTERMOUNTAIN REGION. THIS
UPPER-AIR PATTERN WILL MAINTAIN A DRY...STABLE LOW-LEVEL AIR MASS
OVER MOST OF THE CONUS THROUGH THE DAY ONE PERIOD. ASIDE FROM A FEW
LIGHTNING STRIKES ALONG THE PACIFIC NW COAST AND PERHAPS IN THE LEE
OF LAKES ERIE AND ONTARIO...NO ORGANIZED TSTM ACTIVITY IS EXPECTED.

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