Temps will plummit tonight under clear skies and very light winds.

On March 3, 2007, I recorded a morning low of 32.2 degrees while LGA (a few air miles away) recorded a low of 48. The winds were light & variable out of the SW all night and skies were crystal clear overnight. It was just up until a few days ago that it dawned on me that because there is a very large swath of open space (Kissena Park & Golf Course, Flushing Cemetary and St. Mary's Cemetary) just to the SW of my house, that on a SW wind (light enough to promote ideal radiational cooling though) is how I have those big swings in morning lows with other urban areas to my west. My area and into more eastern sections of Queens resembles LI moreso than NYC with respect to climate.

Down to 56.9 here after a high of 71.3

Here's a map of the area, i cannot put a dot on my house bc it's google maps but I am just to the NE of all the open areas, so a SW wind is where we would see freezing road conditions on otherwise mild nights in the more urban areas.

http://maps.google.com/maps?f=q&hl=en&...c=addr&om=1

I noticed something. WG, radiational cooling seems to be of alot of interest to you. Thats all I see you write about. LOL. It's 60 degrees here.

Terry -- it sure is. Currently 53.6 here, still 60 @ LGA as you said. Down to 42 in the deep valleys of NW NJ, Walpack & Pequest will definitely have frost come morning.

This morning it was 51 @ LGA and 44.8 here. Bit swings within small distances really interests me.

BTW -- South Jersey pine barrens cooling off nicely also, down to 45 @ Oswego Lake down there.

[img width=600 height=600]http://i19.tinypic.com/5xsg2sl.png[/img]

Atmosphere is dead silent tonight, allowing for colder air aloft to successfully make it to the surface.

don't have time to post the link but 28 in walpack and 30 at pequest.  36 here in h-town.

went down to 33.7 just after 6am with frost. up to 35.9 now

low was 44.3, that Walpack location is amazing with RC.

Dropped all the way down to 36.5 last night here.  Was surprised to wake with the house pretty cold and had to tick the heat on for a bit to get the chill out.

low was 36, dont know about frost since I reallt didnt look outside until I left for work(8:10)