CLEAR SKY CLOCKS WITHIN 100KM OF MANHATTAN

    Attilla Danko, of Canada, compiles forecasts for astronomy sky 
conditions, called Clear Sky Clocks, for hundreds of sites in North 
America. The clocks are colored graphs for the 48 hours following the
instant moment for cloud cover, seeing, transparency, temperature, 
and other items.
    The two clocks below are for NYSkies starviewing sites in
Central Park, Manhattan, and Floyd Bennett Field, Brooklyn.
    





Here is the explanation of the colors in each bar in the clock.

    The list below for clocks within 100 kilometers of Manhattan is adapted from Danko's website.
'Preview' is the 'cloud cover' and 'transparency' bars from the complete clock, with hours lined
up with those on the two NYSkies clocks above. Click on the town to see details about its clock 
on his website. Please mind that the clocks generally still use oldstyle measures, not metric. Be
careful when interpreting their readings.

Clear Sky Clocks within 100Km of New York City

Km	Bearg	Town	Preview	Place name
0	-----	New York NY		Central Park
16	SE	Brooklyn NY		Floyd Bennett Field
18	SW	Willowbrook SI		Astrop Obsy, College of Staten Is
21	NW	Upper Montclair NJ		Montclair State University
24	N	Paramus NJ		Buehler Obsy, Bergen Commty Coll
27	W	Cranford NJ		Sperry Obsy, Union Co Coll
32	N	Hastings-on-Hudson NY		Draper Park
40	NW	Boonton NJ		Sheep Hill Observatory
43	NE	Port Chester NY		Port Chester
43	NE	Oyster Bay LI		Oyster Bay
43	S	Holmdel NJ		Holmdel
45	SW	New Brunswick NJ		Schommer Obsy, Rutgers Univ
47	N	Suffern NY		North East Astronomy Forum
30	W	Randolph NJ		Morris County Observatory
30	NE	Greenwich CT		Bowman Observatory
50	NE	Lloyd Neck LI		Caumsett State Park
55	E	Dix Hills LI		Half Hollow Hills Planetarium
60	NE	Stamford CT		Stamford Observatory
63	E	Robert Moses St Pk LI		Robert Moses State Park
63	NW	Highland Lks NJ		Wawayanda State Park
68	SW	Princeton NJ		Peyton Hall, Princeton Univ
69	E	Hauppauge LI		Hauppauge
69	NE	Cross River NY		Ward Pound Ridge Reservtn
72	N	West Point NY		US Military Academy
72	NE	Westport CT		Rolnick Observatory
72	W	Flemington NJ		Deer Path Park
76	W	Highbridge NJ		Voorhees State Park
49	SW	Colliers Mills NJ		Colliers Mills Wldlf Mngmt Area
81	W	Hope NJ		Jenny Jump State Forest
82	NW	Middleville NJ		Swartswood State Park
82	S	Lakehurst NJ		Lakehurst
84	N	Carmel NY		Fahnestock Meml State Park
84	NE	Bridgeport CT		Boothe Memorial Park
87	NW	High Point NJ		High Point State Park
89	NE	Danbury CT		Obsy/Plm, Westn Conn St Univ
92	E	Upton LI		Brookhaven National Lab
92	NW	Dingmans Ferry PA		Delaware Water Gap Natl Rec Area
93	N	Montgomery NY		Montgomery
93	NW	Montague NJ		Montague
93	NW	Port Jervis NY		Port Jervis
97	W	Ottsville PA		Camp Onas

    While the sites are only ten or so kilometers apart, their hour-by-hour forecasts
are not the same. It is a common experience that an astronomer in one part of NYSkies land
receives a quite different weather from his colleague elsewhere in the territory.
    This page includes material reproduced with permission of Attilla Danko.