Vencore Weather
16Sep/14Tue

7:00 AM | Cool front ushers in a reinforcing shot of cooler-than-normal air for the rest of the week

6-Day Forecast

Today

Becoming mostly sunny, breezy, cool, highs in the upper 70’s

Tonight

Mostly clear, quite cool, lows in the low 50’s

Wednesday

Mostly sunny, cool, mid 70’s

Wednesday Night

Mainly clear, quite cool, mid 50’s

Thursday

Mostly sunny, cool, low-to-mid 70’s

Friday

Mostly sunny, cool, near 70

Saturday

Partly sunny, cool, low-to-mid 70’s

Sunday

Partly sunny, comfortable, upper 70’s

Discussion

A weak cool front is working its way through the region this morning and high pressure will resume control of our weather this afternoon and evening. In fact, high pressure from the Midwest will control the weather scene in the northeastern quadrant of the country from later today through the remainder of the week. Temperatures will remain below normal for this time of year with highs generally in the 70’s along the I-95 corridor during the next several days. The normal high for Reagan National Airport in DC on this date is 80 degrees and the first half of September ended 3.9 degrees above normal due primarily to a very warm opening week.

Elsewhere, the remains of Hurricane Odile will spread heavy rainfall into Arizona and New Mexico over the next few days with several inches likely by the end of the week. This active tropical pattern in the eastern Pacific will continue in the foreseeable future as the next tropical system, Polo, is already getting organized. Polo could very well spread additional rains into the Baja region and Southwest US during the next week to ten days. Meanwhile, in the Atlantic Basin, Hurricane Edouard churns along as a category 2 storm and it continues to pose no threat to land.

Video

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15Sep/14Mon

1:30 PM | Meteor lights up the Mid-Atlantic skies on Sunday night; video captures a brief change from night-to-day as meteor passes over central PA

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[Widespread area of eyewitness accounts from last night's meteor according to the American Meteor Society]

Discussion

A very bright meteor was seen streaking across the skies throughout the Mid-Atlantic region on Sunday night according to dozens and dozens of eyewitnesses. The fireball flashed over the Mid-Atlantic region around 11pm according to numerous reports and turned night into day for a few seconds as captured on video in State College, PA. The American Meteor Society (AMS) tracks fireballs and they have received more than 150 reports from Virginia to New Hampshire and as far west as central Ohio (Google map above shows range of reports; Google map available at http://www.amsmeteors.org/fireball_event/2014/2187; courtesy AMS). The meteor was so bright in fact that numerous reports have poured in from the highly populated areas of DC, Philly and New York City. Jesse Ferrell of Accu Weather (State College, PA) recorded video on “dropcam” webcams in State College, PA and posted this to YouTube (http://youtu.be/Q3Mu5bFKjHY) which captures the lighting up of the sky as the meteor passed overhead.

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15Sep/14Mon

7:00 AM | A cool and dry start to another cooler-than-normal week

6-Day Forecast

Today

Mainly sunny, cool, highs in the mid 70’s

Tonight

Becoming mostly cloudy, cool, chance for showers, lows not far from 60 degrees

Tuesday

Becoming partly-to-mostly sunny, breezy, cool, mid-to-upper 70’s

Tuesday Night

Mainly clear, quite cool, low 50’s

Wednesday

Mostly sunny, cool, low 70’s

Thursday

Mostly sunny, cool, low 70’s

Friday

Mostly sunny, cool, low 70’s

Saturday

Mostly sunny, comfortable, mid 70’s

Discussion

The coolest air mass of the season so far has dropped early morning temperatures into the lower 50's across many suburban locations and afternoon highs will stay at below-normal levels for this time of year despite plenty of sunshine. High pressure controls our weather today, but a weak cool front could generate shower activity in the region late tonight and early tomorrow before high pressure regains control and dry, cool weather returns to the area.

Video

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12Sep/14Fri

7:00 AM | A cool weekend with occasional rain on Saturday and sunshine on Sunday; an update on the recent solar activity

6-Day Forecast

Today

Mostly sunny, cooler and less humid, highs in the mid 70’s

Tonight

Mostly clear this evening and then becoming mostly cloudy late, cool, maybe a shower towards morning, lows in the upper 50’s

Saturday

Mostly cloudy, cool with occasional rain, near 70

Saturday Night

Mostly cloudy, quite cool, still the chance for showers during the evening hours, upper 50’s

Sunday

Mostly sunny, cool, low 70’s

Monday

Partly sunny, cool, chance for showers at night, low 70’s

Tuesday

Mostly cloudy, cool, chance for showers, low 70’s

Wednesday

Mainly sunny, still cool, low 70’s

Discussion

A strong cool front passed through the region late yesterday ushering in a chilly air mass for this time of year that had its origins in western Canada. As a result, the Mid-Atlantic region will feature below normal temperatures not only through the weekend, but also through the early and middle parts of next week. This early season Canadian cold air outbreak has had its biggest impact relative-to-normal across the northern Plains and northern Rockies where snow has accompanied the plunge in temperatures. Some spots such as in Rapid City, South Dakota have seen their earliest snowfall on record and nearly a foot of snow has fallen in higher elevation localities across the northern Rockies. High pressure centered over the middle of the country this morning will extend into the Northeast US protecting us from any rainfall, but a disturbance to our southwest will produce occasional rain around here on Saturday. The combination of the entrenched chilly air mass and thick clouds on Saturday will make it a struggle for temperatures to pass the 70 degree mark - way below the seasonal norms for this time of year. While some sunshine will return on Sunday and Monday, temperatures will stay at below normal levels as mid-September approaches.

An update on the recent solar activity...the first of two CMEs expected to hit Earth's magnetic field on Sept. 12th has indeed arrived, and a minor (G1-class) geomagnetic storm is underway as a result of the impact. The second and potentially more powerful CME is still en route. NOAA forecasters say geomagnetic storming could become strong (G3-class) during the late hours of Sept. 12th and Sept 13th after the second CME arrives.

Video

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