457 
FOCN45 CWWG 222000
SIGNIFICANT WEATHER DISCUSSION ISSUED BY THE PRAIRIE AND ARCTIC STORM
PREDICTION CENTRE OF ENVIRONMENT CANADA AT 2:00 PM CST SATURDAY
NOVEMBER 22 2008.

DISCUSSION...NO WARNINGS OR WATCHES AT THIS TIME.

18Z SFC MAP SHOWS 998 MB LOW SOUTHWEST OF BUFFALO NARROWS WITH WARM
FRONT TO S AND COLD FRONT SWWD. LOW IS EXPECTED TO MOVE INTO NRN SK
TONIGHT.

PRECIP BEHIND THIS LOW HAS CHANGED OVER TO SNOW AND HAS GIVEN LOCAL
ACCUMULATIONS UP TO 10 CM IN SOME LOCALITIES IN THE ST. PAUL AREA.
OTHERWISE PRECIP SHOULD MOVE INTO NRN SK TONIGHT. GUSTY WINDS OVER
SOUTHERN AB BEHIND THE COLD FRONT HAS APPROACHED WARNING LEVELS IN
MEDICINE HAT AREA EARLIER TODAY BUT ARE DIMINISHING THIS AFTN. SWLY
GAP WINDS THROUGH WATERTON PARKS ARE ALSO DIMINISHING.

COLD ARCTIC AIR MASS STILL DOMINATES EASTERN ARCTIC AND EASTERN
PRAIRIES ALTHOUGH MILDER AIR ALOFT IS MAKIING ITS WAY TO THE SURFACE
IN WESTERN SASKATCHEWAN. POTENTIAL FOR PATCHY FREEZING RAIN OVER
BUFFALO NARROWS AND MEADOW LAKE AREAS HAS ENDED DUE TO WARM AIR
PULLING OUT AND PRECIP CHANGING OVER TO SNOW. EASTERN PRAIRIES WILL
CONTINUE TO WARM THROUGH THE WEEKEND. LOTS OF CLOUD BUT NOT MUCH
PRECIPITATION WITH THE WARM AIR. BRISK SOUTHERLY WINDS AHEAD OF LOW
ASSOCIATED WITH MILDER PACIFIC AIR AND NEAR-WARNING CRITERIA
WESTERLY WINDS BEHIND THE SYSTEM.

OUTLOOK...MILDER CONDITIONS MOVE INTO SASKATCHEWAN AS THE UPPER LONG
WAVE RIDGE BUILDS EASTWARD BEHIND THIS LATEST SYSTEM. STORM THAT IS
CURRENTLY POUNDING ATLANTIC CANADA IS EXPECTED TO TRACK SOUTH OF
GREENLAND AND THUS NOT IMPACT BAFFIN ISLAND. ARCTIC RIDGE WILL KEEP
EASTERN ARCTIC COLD AND DRY FOR FORESEEABLE FUTURE. NEXT PACIFIC
SYSTEM WILL MOVE INTO NRN AB LATE SUNDAY AND GIVE POTENTIAL FOR
FREEZING RAIN TO HIGH LEVEL AND FORT CHIPEWYAN AREAS. ALSO SLIGHT
POTENTIAL FOR STRONG GAP WINDS OVER SWRN AB FOR MONDAY.

END/CUMMINE/YUN