Wednesday, June 17, 2009

REMAINDER AUTUMN EARLY WINTER OUTLOOK 2009-2010

REMAINDER NOVEMBER 2009

T--N.
P--A.
S--B/N.

Highlights--

Week starting Nov 23rd-Nov 30th--A coastal storm will likely bring some rain to start the week. Then a cold front could bring a chance of showers around the 24th-25th. Temperatures should be near to slightly above normal through Thanksgiving Day morning then colder than normal starting Thanksgiving Day night into early Saturday with a slight moderation in temperatures the second half of next weekend. The region could very well see it's first snow flurries or even snow showers on Friday the 27th with mainly dry conditions returning for the 28th and 29th. Another cold front will likely approach the region on the 30th with some very cold air behind it.

DECEMBER 2009

T--N/B.
P--A.
S--N/A.

Hightlights--

The week starting November 30th--The month should start off with temperatures running below normal. While the northern branch of the jet stream should become very active with fast moving low pressure systems moving across the Great Lakes and into the ne, the STJ may or may not remain separate and could be somewhat surpressed early in the week. By Wednesday the 2nd, some of the models indicate a quickly moving coastal storm could bring a cold rain or even some wintry precipitation. Later in the week, the northern and southern streams of the jet should begin to phase allowing a more important storm threat to occur. There is uncertainty at this point as to how much cold air will be around and exactly where/when this phase-up might occur but odds would still, at this point, seem to favor mainly rain for coastal sections while inland areas might see some significant frozen precipitation. Much colder air and windy conditions are expected to follow the late week or weekend storm.

The week starting December 7th--Unseasonably cold air should become more entrenched across the midwest and ne CONUS as an active storm track develops across the southern half to two thirds of the CONUS. This should allow for the first real wintry precipitation threats for the NYC Metro Region, possibly several of them.

JANUARY 2010

T--B.
P--N/A.
S--A.