[SWODY2] SWODY2

[Severe Weather Outlook - Day 2]

ACUS02 KWNS 081659
SWODY2
SPC AC 081657

DAY 2 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK
1057 AM CST MON JAN 08 2007

VALID 091200Z - 101200Z

...NO SVR TSTM AREAS FORECAST...

...PACIFIC NW...

STRONG POST FRONTAL COLD ADVECTION WILL DRAMATICALLY STEEPEN LAPSE
RATE ENVIRONMENT ACROSS THE PACIFIC NW DURING THE LATTER HALF OF THE
PERIOD.  FORECAST SOUNDINGS FOR COASTAL WA/NW ORE SUGGEST BOUNDARY
LAYER CONVECTION WILL DEVELOP WITHIN ONSHORE FLOW REGIME AROUND
00Z...WITH ACTIVITY EXPECTED TO DEEPEN SUFFICIENTLY FOR LIGHTNING
WITHIN LOW-TOPPED UPDRAFTS...ALTHOUGH EL LEVELS WILL GRADUALLY RISE
TO NEAR 500MB BY THE END OF THE PERIOD.  COLD PROFILES SUGGEST SMALL
HAIL MAY ACCOMPANY THE STRONGER UPDRAFTS.

...LAKE ONTARIO...

LAPSE RATES WILL STEEPEN...ESPECIALLY AFTER 00Z...ACROSS LAKE
ONTARIO WITHIN NW FLOW BENEATH UPPER TROUGH TUESDAY.  ALTHOUGH LAKE
EFFECT SHOWERS SHOULD EVOLVE...OVER/DOWNWIND OF THE LAKE...AS
THERMODYNAMIC PROFILES BECOME MORE UNSTABLE...IT APPEARS LIGHTNING
WILL BE EXTREMELY ISOLATED AND WILL NOT OUTLOOK THUNDERSTORMS ACROSS
THIS REGION.

..DARROW.. 01/08/2007