Archive: December, 2011
With its November satellite-temperature report, NASA scientists John Christy and Roy Spencer include a review of what the data show over the last 33 years.
They report a worldwide temperature increase of about 0.82 degrees Fahrenheit, with warming showing up just about everywhere.
One exception is the slight cooling in the Antarctic, but the Arctic has been on fire, with temperatures up better than 3 degrees.
Last month was one of the warmest Novembers ever in Philadelphia, but globally it was the coolest November since 2000, according to the government.
The National Oceanic and Atmopsheric Administration reported this afternoon that last month was about a half-degree cooler worldwide than November 2011.
But the combined land-and-sea temperature still ranked as the 12th warmest for a November in the period of record that dates to 1880.
Unlike the weather, KYW Newsradio ordinarily is a paragon of predictability ... you give us 22 minutes ... traffic on the 2's ... and now KYW Sports ... .
Thus we've found it somewhat jarring in recent days when we heard KYW weather reports attributed to CBS3.
KYW and Accu-Weather have had a partnership that dates back over 35 years. After all, Joel Myers, the company's founder, and broadcasting icon Elliot Abrams are Philly natives.
When the official temperature dropped below 30 yesterday, it marked the first time since last Feb. 9-11 that it had fallen into the 20s in Philadelphia on three consecutive days.
That cool spell is over, but it has left a subtle legacy. Ice again is appearing on the rocks along the Schuylkill Expressway between Gladwyne and Conshohocken.
This is a common wintertime phenomenon, and while it may seem a prosaic development to the casual observer, we note that this is all part of immense and almost unimaginable processes.
Even with the generous frosts and the first samplings of temperatures in the the 20s the last two mornings, December remains better than 4 degrees above normal in Philadelphia.
Afternoons should be milder the next few days, until another modest chills sets in for the weekend.
But the region's first true cold snap -- which the National Weather Service defines as three consecutive days with temperatures failing to get above 35 -- is nowhere on the horizon.
As Peter Mucha's story notes, flood watches are up all over the region, and evidently with good reason, even though the rain should be letting up for a few hours.
Montgomery County has advised the folks who live along the Schuylkill in West Norriton Township to get their duck boots ready.
It's unclear whether the rivers will go over, but it's not looking good for the usual-suspect streams in the frequent-flooder club.
On a day when the temperature is heading into the '60s, computer models incongruously are hinting that some places near Philadelphia are going to wake up to a snow cover Thursday morning.
This should become clearer with model runs this evening, but right now it appears likely that at least some flakes are going to fall as the storm makes its exit.
After the storm passes, it will be moderately chilly, with below-normal daytime temperatures in the 40s into next week.
The threat of any significant accumulating snow in the immediate Philadelphia area is a remote one, but heavy rain is all but a certainty.
The National Weather Service has posted a flood watch for Wednesday afternoon into Wednesday night for Philadelphia and all the neighboring counties in Pennsylvania, New Jersey, and Delaware.
River flooding isn't expected, but with up to 2.5 inches of rain anticipated, road-ponding and small-stream flooding are possible.