BEYOND THIS, THE SIGNAL FOR AN EXPANSIVE UPPER TROUGH CUTTING SOUTH AND WESTWARD ACROSS THE GREAT LAKES CONTINUES TO GROW IN THE GUIDANCE SUITE TOWARDS THE END OF THE WEEK. WITH THIS OCCURRING AS ANOTHER 1050S MB ARCTIC HIGH BUILDS SOUTHWARD ACROSS THE NORTH-CENTRAL CONUS, THE POTENTIAL FOR ANOTHER ROUND OF LAKE EFFECT SNOW IS EVIDENT FROM ABOUT THURSDAY NIGHT THROUGH SATURDAY. WITH ICE COVER LIKELY TO EXPAND WITH TIME, IT'S A BIT UNCLEAR HOW THIS MIGHT IMPACT SURFACE FLUXES, ALTHOUGH LATEST GLERL ICE FORECASTS INDICATE ICE COVERAGE LIKELY WON'T EXTEND BEYOND 15-20 MILES, WITH A WIDE OPEN FETCH AVAILABLE ALONG THE LONG AXIS OF THE LAKE. WITH THE COLDER LAKE TEMPERATURES, THERMODYNAMICS ARE NOT OFF THE CHARTS, BUT CERTAINLY MORE THAN SUFFICIENT FOR INTENSE LAKE EFFECT WITH SURFACE-850 DELTA TS NEAR 20 C AND LAKE-INDUCED ELS JUST UNDER 9-10 KFT. WAY TOO MUCH UNCERTAINTY AT THIS TIME RANGE TO MAKE ANY ADJUSTMENTS TO THE BLENDED SLIGHT CHANCE POPS, BUT THIS WILL BE A PERIOD TO KEEP A CLOSE EYE ON.