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03/02/2012

One Dry Chilly Day for NYC, Then Rain Returns!

Rumbles of thunder possible tomorrow, sunny on Sunday!

Good Morning,

If you had the chance to look back at some of the visible satellite imagery from yesterday, it revealed that there was a pretty

distinct, and sharp 'cut off' between those places which were sunny, and those which were cloudy during mid-afternoon... That

was pretty much drawn "along the Mason-Dixon Line", and it definitely had a major impact on temperatures... Although there

was a wave of low pressure moving across upstate New York and New England, resulting in snow, ice and rain across

Massachusetts, New Hampshire and Maine, temperatures along the I-95 corridor ranged from the upper-30s in Boston to 41 in

New York City, 54 in Philadelphia, 59 in Wilmington, Delaware, 67 in Baltimore and 70 in Washington, D.C. ---- I just wonder how

many more days we'll see like this during the next 6 weeks! Heading into April, it may not be "30s vs. 70s", but "40s vs. 80s" is a

feat that get duplicated lots of times!

While there was a weak wave of low pressure early yesterday that formed in Delaware, which did manage to creep out to sea

during the afternoon, today's surface map is showing us the complete opposite >> a ridge of high pressure originating in

eastern Canada is nosing its way southward along the coastal plain... Winds are relatively light, and should remain that way

throughout the morning... And, with the surface winds turning from the east and northeast early today to more of a

southeasterly direction this afternoon, there'll probably only be a few breaks in the clouds seen... This should limit most

temperatures to the 40s across much of the Tri-State Area later today, with mostly lower or middle-50s south of the

Mason-Dixon Line...

The focus of our attention will be quickly shifting to the south and west late today and especially tonight... Winds should begin

to turn more towards the south and southwest, which will allow for some milder air to flow northward along the I-95 corridor...

However, there should also be an area of rain that will be expanding northeastward pretty quickly this evening, so most of the

bigger cities should see rain arriving between the hours of 6 and 10 p.m. -- and of course, many will be watching for another

round of severe weather in a corridor which extends from southern Ohio and northern Kentucky southward into Alabama...

Whatever is left of this convective activity should drift into the mid-Atlantic states very late tonight and tomorrow morning, so

we're going to be addressing some thunderstorms around here (but most of them won't be strong or severe)... Temperatures

will be RISING OVERNIGHT in most places, and should wind up in either the upper-50s or the lower-60s tomorrow just before

the next cold front arrives... Rain tonight will probably last into tomorrow morning before tapering to a few showers and ending

in the afternoon... It'll be windy and rather mild for early in March, but there'll be a change to cooler air on Sunday, even despite

some sunshine... A trough of low pressure in the upper atmosphere should be digging into the Eastern Region early next

week, so the colder progression will continue... Most temperatures on Monday and Tuesday should be limited to the lower and

middle-40s, even if there is no less than partial sunshine... High pressure may be the key, dominant feature in the East next

week, so this portends an eventual return to mild weather Wednesday, Thursday and next Friday...

Have a good weekend!!!

 

Posted by WABC on March 2, 2012 in Bill Evans' Weather Chat , Science , Television , Travel , Web/Tech , Weblogs | Permalink

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