Vencore Weather
24Mar/15Tue

7:00 AM | Another chilly day and then pretty cool again on Wednesday, but temperatures will spike on Thursday with 70 degrees possible

6-Day DC Forecast

Today

Mostly cloudy skies, cold, highs in the mid-to-upper 40’s

Tonight

Mostly cloudy, cold, maybe a rain or snow shower late, lows in the lower 30's

Wednesday

Mostly cloudy, chilly early, but turning milder late, cannot rule out a little rain in the morning perhaps even mixed with sleet and then a shower or two possible during the afternoon, mid-to-upper 40's for highs late in the day

Wednesday Night

Mostly cloudy, mild, chance for some rain and fog, low-to-mid 40's for lows

Thursday

Cloudy, quite mild, breezy, showers likely and maybe a thunderstorm, near 70 degrees

Friday

Partly sunny, colder, chance for rain showers, mid 50's

Saturday

Partly sunny, even colder, mid 40’s

Sunday

Mainly sunny, still rather chilly, near 50 degrees

Discussion

A weak disturbance will be passing through the region early today with clouds and the clouds should linger during the afternoon as well along with chilly temperatures for this time of year. High pressure area will shift off the east coast later in the day and this will open the door for a warm frontal passage on Wednesday and then temperatures should spike on Thursday. In fact, temperatures are likely to soar to 70 degrees on Thursday – the warmest day of the week – but the mild conditions will also be accompanied by showers and perhaps even a thunderstorm. It’ll turn colder at the end of the week following a strong cold frontal passage and this overall colder-than-normal weather pattern is likely to continue right into April.

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23Mar/15Mon

12:40 PM | The threat for a little snow late tonight and early Tuesday

Discussion

Here we are now officially a few days into spring and temperatures remain at way below normal levels for this time of year. The normal high for today at Reagan National Airport (DCA) is 58 degrees and we’ll be lucky to get within 10 degrees of that mark during the afternoon hours. In addition to the cold, there is a little snow to worry about for late tonight and early Tuesday.

An upper-level disturbance is now crossing the Upper Midwest and it is causing a good deal of snowfall in portions of Wisconsin, Minnesota and Illinois. In fact, Chicago, IL is likely to end up with a few inches of snow by later today and temperatures will hold at or below the freezing mark. While this disturbance will weaken tonight as it moves to the southeast, it is likely to generate snow showers in the DC and Baltimore metro regions late tonight and early Tuesday (between about 2 and 10am). There is even the outside chance for a coating of snow in parts of the area by the time the Tuesday morning commute rolls around. It does get much milder later this week with 70 degrees a possibility on Thursday, but don’t get used to it.

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23Mar/15Mon

7:00 AM | A cold start and end to the new work week, but with a mild middle

6-Day DC Forecast

Today

Mainly sunny, quite chilly for this time of year, highs in the mid 40’s
(normal high is now 58 degrees at DCA)

Tonight

Mostly cloudy, cold, chance for snow showers late, lows not far from 30 degrees

Tuesday

Snow showers possible early then remaining mostly cloudy, still quite chilly, near 50 degrees late in the day

Tuesday Night

Partly cloudy, cold, low-to-mid 30’s

Wednesday

Increasing clouds, much milder, chance for showers, near 60 degrees

Thursday

Mostly cloudy, quite mild, showers likely, maybe a thunderstorm, mid 60’s

Friday

Partly sunny, colder, chance for rain showers late, near 50 degrees

Saturday

Mainly cloudy, cold, upper 40’s

Discussion

A cold air mass for this time of year resides this morning in the Northeast US and it is anchored by strong high pressure. A weak disturbance will head this way from the Upper Midwest and it could produce a few snow showers here late tongith and early Tuesday. That high pressure area will then shift off the coast later Tuesday and it’ll turn milder for the mid-week. In fact, Thursday appears to be the warmest day of the week, but it also looks like it’ll be wet as well as mild. The mid-week warm up won’t last long; however, as another strong cold front will reach the east coast late Thursday and we’ll turn colder again by the end of the work week as this overall colder-than-normal weather pattern continues into April. There will be lots of energy in the upper atmosphere post-cold frontal passage and we'll have to watch for the possibility of a storm to form in the cold air near the east coast later Friday or Saturday.

One final note, here is a small sampling of snowfall totals from last Friday’s event (not necessarily the last one):

DC/Baltimore region:
Reagan National Airport trace, BWI Airport 1.1”, Germantown, MD 2.0”, Manassas, VA 1.0”, College Park, MD 1.3”

Philly area:
PHL Airport 3.9”, King of Prussia 5.2”, West Chester, PA 5.5”, Exton, PA 5.0”, Chadds Ford, PA 3.9”, Media, PA 6.0”, Perkasie, PA 6.0”

New York City region:
Central Park, NY 3.2”, Battery Park, NY 4.5”, LGA Airport, NY 4.6”, Islip, NY 5.3”

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20Mar/15Fri

2:00 PM | **Snow has tapered off in DC, but will continue for awhile from Philly to NYC**

Discussion

While precipitation is winding down across the DC metro region, there are still several hours to go in the corridor from southeastern PA to New York City where heavy snow is now being reported (Central Park). Accumulation amounts in the DC metro region ranged from a trace at Reagan National Airport (DCA) to around 3 inches or so in portions of Montgomery (MD) and Loudoun Counties (VA) – well to the west and north of the District. In some suburban locations in SE PA snowfall amounts are already closing in on 4 inches or so on grassy surfaces and even many roadways are getting covered. Despite the high sun angle in late March, roadways will continue to be slippery into the evening during periods of heavy snow and visibilities will be a problem. The snow will continue at varying intensities right into the early nighttime hours and then could taper off late tonight from Philly to NYC as light freezing drizzle or even light snizzle (i.e., snow drizzle). Accumulations of 3-6 inches are expected on average from the suburbs of Philly across central and northern New Jersey and into the NYC metro region. There will be a lot of melting on Saturday as it gets noticeably milder, but the overall colder-than-normal weather pattern continues right into April. It’s quite amazing to see snow at this hour in places like Atlantic City, NJ and Philly, PA with the temperature at 33 degrees in both places considering the fact that the normal high for March 20th is around 54 degrees. On a more positive note, this storm is very photogenic. The wet nature of the snow is clinging to tree limbs and surrounding early spring flowers that have begun to bloom in parts of the area.

Filed under: NYC, PHL, WMA Comments Off