SWODY3
SPC AC 030728
DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0228 AM CDT MON SEP 03 2007
VALID 051200Z - 061200Z
..NO SVR TSTM AREAS FORECAST...
..CNTRL ROCKIES...
NRN PAC UPR TROUGH IS EXPECTED TO CONTINUE WEAKENING AS IT MOVES OUT
OF THE GRT BASIN AND INTO THE CNTRL/NRN ROCKIES ON WEDNESDAY. THERE
SHOULD BE CONSIDERABLE CONVECTION ONGOING EARLY WEDNESDAY FROM NRN
UT INTO MT WITH ADDITIONAL WARM CONVEYOR BELT DERIVED PCPN THROUGH
THE ROCKIES. STRONGER TSTMS MAY FORM WEDNESDAY AFTN AS STEEPER
LAPSE RATES ALOFT SPREAD EWD IN TANDEM WITH THE UPPER SYSTEM.
ROUGHLY 40-45 KTS OF H5 FLOW ALONG THE BASE OF THIS TROUGH AND
MODEST INSTABILITY WILL LIKELY BE FAVORABLE FOR ISOLD ORGANIZED
STORMS CAPABLE OF DMGG WINDS/HAIL.
..NRN PLAINS...
A STOUT EML WILL LIKELY BE MAINTAINED DOWNSTREAM FROM THE
APPROACHING PAC NW TROUGH ON WEDNESDAY. A WAVE IN THE POLAR WLYS
WILL TRAVERSE SRN CANADA WITH A COLD FRONT MOVING SEWD INTO THE FAR
NRN PARTS OF THE PLAINS BY WEDNESDAY NIGHT. UPPER SUPPORT APPEARS TO
BE WEAK AND GIVEN THE STRONG EML...PROSPECTS FOR SFC BASED TSTM
INITIATION APPEARS LIMITED. BUT...ELEVATED TSTMS WILL BE POSSIBLE
LATE WEDNESDAY NIGHT TO THE N OF THE FRONT FROM WY/ERN MT INTO ND.
ATTM...IT DOES NOT APPEAR SVR WEATHER WILL BE A CONCERN OWING TO
MEAGER INSTABILITY.
.RACY.. 09/03/2007
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