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01/23/2012

You Will Need Your Rain Gear Around NYC Today!

Drizzle & Fog This Morning, Steadier Rain Later Today for the Evening Commute & Tonight.

Good Morning, 

As we've seen so frequently this winter season, a seasonably cold air mass will be getting wiped out in a

'big way' later today... By later on this afternoon, most temperatures will either be in the upper-40s or the

lower-50s across much of the Northeast and the mid-Atlantic states... However, temperatures are either

holding nearly steady, or rising very slowly early this morning, and there's a lot of low-level moisture in place...

Therefore, especially away from the coastal plain, we have to be mindful of the fact that there can be some

flurries and a touch of freezing drizzle for a while...

 

There are various freezing rain advisories which have been posted from New England on down to central Virginia...

Some of these are due to expire as early as 6 a.m., while others won't until 8 a.m. or 9 a.m. -- it all is dependent

upon location, and just how long it takes temperatures to rise into the upper-30s and the lower-40s...

 

From mid-morning on, we'll need to monitor the regional radar mosaic for a potential increase in areal rainfall

coverage east of the Appalachians... But, all model output seems to be pointing out that the most

widespread and steadiest rain should occur after 1 p.m. and before midnight tonight... Quantitative amounts

should be between 0.25" and 0.50"... Because of the snowfall that occurred on Saturday, any period of

moderate or heavy rain, combined with melting snow, may result in a few minor flooding issues (primarily of

clogged storm drains, and in some urban areas)...

 

Also, the presence of the snow cover will contribute to the formation of locally dense fog today... But, as a front

sweeps across the region early tonight, the rain should come to an abrupt end from west to east... Temperatures

tonight will be mostly in the 30s and the lower-40s, which in many cases, are closer to -- if not ABOVE typical

daytime high temperatures for this time of year...

 

Anticipate dry weather tomorrow and during midweek, with temperatures well above the seasonal averages...

Most high temperatures will be in the 40s and lower-50s across the region tomorrow, with no less than partial

sunshine...

 

Wednesday and Thursday will be somewhat cooler, but with most temperatures in the lower or

middle-40s, we'll still be on the "milder side" of normal...

 

Towards the end of the week, there is some uncertainty on the timing of the return of rainfall along the East Coast...

As a low pressure system forms in the southern Plains states and heads into the Tennessee Valley on Thursday,

there'll be another plume of mild, moist air that will be pressing into the eastern third of the country... While the 00z

G.F.S. is implying that most of the rain will be occurring Thursday night into early Friday, the 00z European is about 8-12 hours 'faster' in bringing rain into the area...

 

At this juncture, we should stress what we're confident about: there won't be any arctic air in place, and whatever

does fall around here as early as Thursday afternoon or as late as Friday morning will be in the form of rain...

Some colder air will eventually return to the Eastern Region next weekend..

 

It appears at this time that Sunday will be the colder day of the two, with most temperatures winding up in the

mid or upper-30s... There could be some rain, or rain perhaps mixing with snow occurring on Saturday before

colder air returns...

 

Have a good day !!!

Posted by WABC on January 23, 2012 in Bill Evans' Weather Chat , Books , Current Affairs , Film , Food and Drink , Science , Sports , Television , Travel , Web/Tech , Weblogs | Permalink

Comments

@cdemero

You have a good day as well.

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