Thursday Morning Vermont Update: Cool, Rain South, Big Time Dry North

This morning's radar, shown at around 7:30 a.m. makes it
look like a lot of rain is falling. But most of it
in central and northern Vermont is evaporating
before it hits the ground, and that state of
affairs should continue all day. The yellow and
dark green in southern Vermont is rain steadily
falling and that should continue all day as well.

 If you looked at weather radar this morning, it seems like it's a really rainy Thursday in Vermont. It's not. 

Sure, a soggy weather system is approaching, but it will pass through our south. Very dry air is streaming in from Canada. 

That dry air is evaporating most of the rain that was trying to fall in central and northern Vermont.

The result will be a cloudy, cool day north, and a rainy day south. 

Not all the rain was evaporating north. Narrow ares of sprinkles were  making it to the ground, which is a bit of a surprise. 

So practically anyone in Vermont might see at least some raindrops here and there today. 

The only substantial rain, though, will hit along and south of Route 4. It looks like there will be a sharp gradient between light rain and heavier stuff. 

Near Rutland and White River Junction, the National Weather Service was calling for only a tenth of an inch of rain or so. (Though morning radar images suggested they might get a little more than that. 

Drive less than an hour or so south down Interstate 91 or Route 7 from Route 4, and soon you could really hit some soakers as you approach Bennington or Brattleboro. Places near the Massachusetts border, especially high elevations like Wilmington, Readsboro and Marlboro, could see up to an inch of rain.

Although we could have used a soaking rain, Vermont is lucky this storm is not going right over us. Those in its direct path - the Mid Atlantic States and areas as far north as Connecticut, are under flood watches today. 

New Jersey, Maryland and eastern Pennsylvania - areas that have already dealt with a lot of flash flooding this summer -  are particularly in trouble today.     

We're talking inches of rain in many of those spots, Some pinpoint areas could see as much as five or six or even more inches of rain, which would cause catastrophic flooding in a highly populated part of the nation.

I guess our national Summer of Floods is continuing. Thankfully not here in Vermont, at least for the time being.

DRY VERMONT WEEKEND

Here in Vermont, after today, we're still expecting the longest dry spell since last September.  We also have an excellent chance of breaking the streak of 32 consecutive weekends with at least a little precipitation  - at least as measured in Burlington.   

National Weather Service rain forecast has nothing in
central and northern Vermont to near an inch near
the Massachusetts border. 

According to one chart from the National Weather Service,  the percent chance of rain this weekend in Burlington gets no higher than 2 percent.  

Those are pretty damn good odds of dry weather. (Though the way this year is going, I almost wouldn't be surprised if it rains from a clear blue sky).

The annoying humidity we've had for at least a week  has been finally be flushed out, too, and it's not coming back for several days at least. 

Which means we have a Chamber of Commerce weather weekend coming up. Lingering clouds in southern Vermont should start to clear Friday. Elsewhere, it's sunshine Friday, Saturday and Sunday. 

I'd scheduled the hike and other physical activity on Friday and maybe Saturday as those days will be cooler.  Highs should be in the 70s both days, with a few low 80s Saturday in the warmer valleys. 

Then do the beach and boat day Sunday, as highs get right up there into the 80s. Despite Sunday's warmth, the humidity should stay low, which will make the days all the more pleasant. 

Low humidity also means temperatures tend to fall off quickly after sunset.  Saturday morning should be the coolest, with sunrise temporaries in the 40s for most of us. Warmer spots in the Champlain Valley would be in the low 50s. The coldest hollows of the Northeast Kingdom and New York's Adirondacks. could see some upper 30s.

The only negative I see in the weekend forecast is some wildfire smoke from Canada. It won't be as thick as it was last Saturday, which brought us some of the worst air pollution on record in Vermont. This time, the smoke might create some light haze, with air quality being so-so, and not particularly dangerous. We hope. 

NEXT RAIN?

Strong high pressure over northern New England and Quebec will be in no hurry to leave. That will keep us warm, with relatively low humidity until about midweek. 

There's mixed signals for the prospects for rain in the middle or end of next week. Some models keep high pressure strong over Quebec and just off the New England coast, which would deflect showers and thunderstorms away from us. 

Other models allow moisture to come up from the Mid-Atlantic states, which would allow a fair number of showers and thunderstorms to blossom toward Wednesday or Thursday. 

Either way, it doesn't look like any kind of real soaker. But that's a week away. Things could change. 

There are signs that the dry high pressure could eventually go offshore and merge with the famous summertime Bermuda High, which opens up a chance at another hot spell beginning in about a week. We're not sure yet, but the long range forecasts so far are leaning that way.