Winter storm warning! 3/18/13
Good morning to everyone! While stepping outdoors this morning, the look and sounds of spring were determined to lead me to believe that spring was here! I heard the friendly chirping and singing of spring birds surrounding me. The sun was bright and the angle was high. I thought to myself, yes, spring is just about here, and we can finally put away the snow shovels, boots and winter hats. Then I said to myself, it certainly doesn’t FEEL like spring, this feels like a mid-winter morning out here! With temperatures in the teens and twenties across New England, and a sharp north wind blowing, I knew Mother Nature had other plans in store for us!
Folks, what can I say? Spring will eventually come. The change of seasons is inevitable. We can not stop the tilt of the earth towards the spring equinox. In fact, the vernal equinox arrives on Wednesday, March 20th at 7:02 A.M. Not soon enough for many. I have a friend on Facebook that has been counting down the arrival time to the exact second since back in February! On this date, the earth’s axis is tilted in equal distance from the sun. From this point forward, the axis of the earth continues to tilt towards the sun, increasing solar radiation and making our days longer. This continues until we reach the summer solstice, at that point we begin the long journey back the other way, tilting away from the sun, and losing heat and daylight on a daily basis.
With all this being said, winter 2012-13 will not go down without a fight! In fact, there is a winter storm warning posted for much of New England, except the southeast, starting tonight and lasting into tomorrow night! As advertised, the second part of winter is hitting hard, and will continue to do so, possibly into the first part of April!
Eventually, the Greenland Block will break down, and spring weather will overwhelm New England. However, as is typical of spring patterns in New England, this will be a struggle this year. The way I look at it, better to have this type of persistant blocking pattern setting up in late winter, than in late spring. Sometimes, if a true winter pattern doesn’t show up during the winter months, they can show up later in spring and fowl up summer weather. So winter may linger into spring for a bit this year. Don’t forget, this was not the scenerio for the past 3 seasons, where spring arrived during wintertime, leading to unusually warm and sunny weather.
Getting back to the matter at hand. Yes, there is a significant late season winter storm arriving in many areas as early as tonight! As with many storms happening this time of year, this is yet another challenging forecast for many meteorologists. Just look what happened last week. I’m not saying 2 ft of snow is going to fall in the suburbs just to the southwest of Boston, however, this just shows you how unpredictable the weather can be this time of year. This storm, like many this winter, have been nearly impossible to pinpoint exactly how much snow is going to fall in any given location. There are too many variables that can happen. A slight shift in the wind or storm track can have huge implications on who’s going to get what.
Right now, I can tell you this. A storm will be developing off the mid-Atlantic region tonight. This storm will slowly move up the coast while intensifying. Being almost a spring storm, this storm will have alot of moistire to work with, as it bumps into the cold air anchored over New England. As the storm approaches, snow will break out across southern New England and quickly spread north. Snow will quickly begin to fall heavy at times into tomorrow morning. Tuesday mornings commute will be a treacherous experience, much like the one we had last Friday morning. The difference is that this time, the heavy snow will overspread much of northern New England, and will fall heavily at times throughout the day and even into the night. Meanwhile, along the coast, inside of Rt. 128 in Boston and up I95 to about Portsmouth N.H. the snow will mix with sleet and then eventually change to heavy rain before noon. As you move up into the Portsmouth N.H. area, things get very tricky. It may be a situation where it’s raining right along the water, but just a few miles inland could be heavy wet snow, and an icy mix in between. Further north and west from here, expect a heavy snowstorm all day for the bulk of New Hampshire and much of Maine.
Again, a small shift in the storm by 50 miles could bring this heavy snow line right into the city of Boston. In addition, the storm will be intensifying rapidly as it moves past Boston’s latitude. If it were to intensify a little quicker, say closer to Cape Cod, this would strengthen a northeast wind in Boston, dynamically cooling the air above us, and turning the rain back into wet snow during the afternoon…very tricky situation.
So what are we talking about for accumulations? If you live in Boston, I am expecting a quick shot of 4 to 6″ across the city first thing tomorrow morning, say 3 or 4″ in town, upwards to 5 or 6″ in the West Roxbury, western Brookline area. Expect 2 to 5″ south of Boston towards the south shore. Closer to the 4″ or 5″ in the Norwood, Walpole Foxborough area, and closer to the 2″ to 3″ in the Marshfield, Scituate and Hull area. If you live on the Cape, you can expect about an inch or two, before it changes to rain.
If you live north of the Pike between Rt128 and I495 you should expect between 6 and 10″. Worcester should receive about 10″ of snow. North and west of I495 will receive the jackpot from this storm with anywhere from 12 to 18″ falling in most of New Hampshire and all of Maine. Expect a little less if you live right along the immediate coastline of New Hampshire and southern Maine, with amounts increasing rapidly if you live more than 5 miles inland from the coast. Most of Maine is really going to get hit hard with this storm.
Needless to say, this will be another bonanza for many ski resorts in northern New England, with many areas receiving 12 to 20″ of new snow. I will rate the conditions a solid 10 out of 10 going into this weekend. With all of the new snow and pleasant temperatures coming up into the weekend, spring skiing will not get any better than this!
Now for your weekly winter forecast. Expect a wintery looking day today, with increasing clouds throughout the day. It will be totally cloudy by evening. It will be chilly today, with highs only in the 30’s. Watch for snow to overspread the region from west to east overnight, arriving in Boston between 10 and midnight, it will be cold with lows in the 20’s.
Look for rapidly accumulating heavy snow early tomorrow morning until around 9 or 10 A.M. with difficult driving conditions. Precipitation may lighten up for a time and change to sleet and rain in the city and points south. The rain may mix with and change back to some snow in Boston during the late afternoon, possibly making for another messy evening commute with falling temperatures. As you move north and west of Rt 128, and especially I495 expect similar conditions, with heavy snow in the morning, lightening up for a bit, only to get heavy again in the afternoon, continueing into the evening.
Don’t expect much springlike weather for the first day of spring on Wednesday. It will be mostly cloudy, windy and cold, with highs mainly in the 30’s. In fact, another storm may move up the coast on Thursday, possibly lashing eastern New England with strong winds and more wet snow. I will update the blog if this storm becomes a more serious threat to the region. After that, expect cold weather to continue into tis weekend, with all spring plans put on hold. It should be mostly dry, except some additional snow showers up north, highs will generally be in the 30’s and low 40’s. This is a good 10 to 15 degrees below average for the date. Look for unprecedented winter conditions to most likely to continue for the rest of the month, possibly making this one of the coldest and snowiest Marches since 1996.
Well that’s about it for now! In next week’s blog I will again attempt to feature my spring outlook and timetable for New England. If this winter like cold and snow were to continue, it may just go from winter to summer this year! I will also continue to post another ski forecast. I will also let you know when we might expect springlike weather to finally show up. In the meantime, be careful driving tomorrow across New England! Wherever you live, you will encounter some type of wintery driving conditions in the last winter storm of the season…until we call them spring storms! Be safe!
Pete