Saturday, March 12, 2011

3/11/2011 Extended Forecast



As a reminder, set your clocks AHEAD one hour before you go to sleep. “Spring FORWARD” is the classic saying when we move the clocks ahead. Yes, this means we will be losing an hour of sleep. 2:00 a.m. will jump to 3:00 a.m. Below, is a post from Tom on the time change… I will use this moment to remind those with battery-operated smoke and carbon monoxide detectors to replace the batteries.

Skies should become mostly cloudy into the early morning hours as a weak cold front slides through our region. It could produce a sprinkle or an isolated rain shower, but most areas will remain dry. As the sun rises, sufficient mixing should begin to occur with so-called cold air advection behind the front. Therefore, windy conditions will develop with wind gusts of 30 to 40 MPH possible. Under normal circumstances, these wind gusts would only knock down just a few twigs at most. However, the ground is very saturated from the recent excessive rains and isolated trees may fall with the expected wind gusts. A secondary cold front will arrive late Sunday and at worst may cause a few clouds to appear.

Monday and Tuesday will be quite. A few clouds may develop Tuesday Evening and Tuesday Night ahead of our next storm system. Highs will be in the lower fifties. It may be cooler north and warmer to the south. If any day is a bust, it is Monday when highs could just fall short of 50 degrees.

Confidence is increasing that there will be some precipitation on Wednesday. The American models are beginning to agree with the foreign models that southern energy will turn northeastward from the Southeastern United States on Tuesday. Then the energy will impact us on Wednesday. The American models are just beginning to pick up on this energy and have yet to develop a very potent or organized storm system. Still, it is looking increasingly likely that Wednesday with be mostly cloudy or completely overcast with a period or periods of rain. With ongoing flooding in Northern and Central New Jersey, some waterways will not even be able to handle an additional one-quarter to one half inch of rain without rising over capacity. Elsewhere, amounts of an inch or two would cause flooding due to the previous two super soakers during the past seven days. Those along rivers, creeks, and streams should monitor the latest forecasts on the potential for measurable rain. Of course, a stronger system could cause wind which may result in tidal problems. There is a lot to hammer out in the next few days prior to the event.

Another cold front will approach on Friday Night, after a decent southerly flow could push temperatures into the seventies prior to the frontal passage. If we do see those mild temperatures, the cold front could not only produce showers, but possibly some thunderstorms. This part of the forecast though is dependent on the strength of the mid-week system. A freshly soaked ground or a northwest flow behind a stronger low would create cooler than expected weather conditions. Therefore, extended forecast confidence is below average.

No comments:

Post a Comment