EXTENDED FORECAST DISCUSSION NWS WEATHER PREDICTION CENTER COLLEGE PARK MD 1052 AM EST FRI JAN 31 2014 VALID 12Z MON FEB 03 2014 - 12Z FRI FEB 07 2014 ...ONGOING THREAT OF HIGH-IMPACT WINTER WEATHER WITH NEW, WETTER REGIME... STUCK CLOSE TO THE CONSENSUS OF THE RECENT ENSEMBLE MEANS FROM THE VARIOUS MODELING CENTERS AS A SYNOPTIC GUIDE FOR THIS FORECAST PACKAGE. THE DETERMINISTIC SOLUTIONS HAVE--CHARACTERISTICALLY--WAFFLED ABOUT THE MEANS, SO AVOIDED SURFING ANY ONE OF THEIR NOISY CYCLES. THERE APPEARS TO BE NO FUNDAMENTAL TRENDING FROM THE ASSESSMENT MADE 24 HOURS AGO LOOKING AT THE WHOLE OF THE GUIDANCE, SO THE SAME SENSIBLE WEATHER THREATS REMAIN. EAST OF THE ROCKIES... A QUICK-MOVING IMPULSE IS STILL POISED TO PAINT A NARROW STRIPE OF SNOW AND ICE ACROSS THE CENTRAL APPALACHIANS AND MID ATLANTIC REGION MONDAY. THE NEXT BUNDLE OF SHORTWAVE ENERGY IS MARKED BY PHASING, WITH A MORE EXPANSIVE AREA OF PRECIPITATION ACROSS THE CENTRAL AND EASTERN UNITED STATES TUESDAY THROUGH WEDNESDAY. MOSTLY SNOW IS EXPECTED FROM THE CENTRAL PLAINS TO THE SAINT LAWRENCE VALLEY, WITH MIXED PRECIPITATION IN THE COLD-AIR DAMMING IN THE LEE OF THE CENTRAL AND NORTHERN APPALACHIANS. SOAKING RAINS AND SOME CONVECTION ARE ANTICIPATED TO THE SOUTH OF THE POLAR FRONT. LATE NEXT WEEK, RETURN FLOW FROM THE GULF OF MEXICO SHOULD KICK IN A NEW ROUND OF PRECIPITATION OVER THE SOUTH, WITH MIXED WINTRY PRECIPITATION ALONG THE NORTHERN PORTIONS OF THE MOISTURE SHIELD. THE WEST... A PRONOUNCED SPLIT IN THE FLOW WILL FOCUS PRECIPITATION OVER DIFFERENT REGIONS, WITH SOUTHERN CALIFORNIA AND THE LEESIDE OF THE NORTHERN CONTINENTAL DIVIDE IN RELATIVE MINIMUMS. THE SECOND HALF OF THE PERIOD LOOKS WETTER THAN THE FIRST, WITH THE COASTAL PACIFIC NORTHWEST AND THE SOUTHERN ROCKIES NETTING THE MOST LIQUID-EQUIVALENT. CISCO