NWS Portland
This is from the Forecast Discussion out of Portland at 2:50 this afternoon.
RELATIVELY QUIET AND COLD SATURDAY NIGHT THROUGH SUNDAY NIGHT. FOCUS
SHIFTS TO EARLY WEEK STORM WHICH YESTERDAY LOOKED TO BE LIQUID PER
MODEL SOLUTIONS. LATEST INTERMEDIATE AND MAIN SYNOPTIC RUNS NOW
LEANING TOWARD A SOLUTION THAT BRINGS THE STORM FURTHER EAST AND ITS
ASSOCIATED COLDER TREND. THIS WOULD BRING ANOTHER BOUT OF MOSTLY SNOW
TO THE REGION. 12Z MODELS RANGE FROM GEM TRACK ALONG THE IMMEDIATE COAST
TO THE GFS WHICH BRINGS IT OUT AROUND CAPE COD TUESDAY MORNING...THEN
STEERS IT INTO THE BAY OF FUNDY ON TUESDAY EVENING. 12Z EUROPEAN
BRINGS IT FURTHER EAST ALONG THE VICINITY OF THE 40N/70W
BENCHMARK. STILL LOTS OF TIME/TRACK ADJUSTMENTS...SO FOR NOW WILL
USE STRAIT GMOS GUIDANCE...RATHER THAN THAN TRY TO GUESSTIMATE
OTHER ASSUMPTIONS. FOR WHAT IT`S WORTH...THE PREVIOUS
WARMER/WETTER SOLUTIONS LOOKED A BIT TOO WARM CONSIDERING SOLID
COLD SNOWBASE IN PLACE. (BUT THEN... DIDN`T EXPECT AS MUCH WARM
AIR/SLEET IN PREVIOUS STORM OVER SOUTHERN/ COASTAL SECTIONS).
AFTER THE STORM PASSES...LOOKS LIKE MODERATE NORTHWESTERLY FLOW
WILL IMPORT ANOTHER BRIEF SHOT OF ARCTIC AIR WEDNESDAY INTO
THURSDAY BEFORE A MODERATION FRIDAY INTO NEXT WEEKEND.-- End Changed Discussion --
Still early, but it is trending colder still.
R2B
|