| estações: 2815
|
nebulosidade |
base |
| Pine Springs (1663 m, Texas) |
0 |
|
| Aeroporto Internacional de El Paso (1194 m, Texas) |
2 |
>2500m |
| Watson Lake Airport (690 m, Yukon) |
8 |
|
| Baudette Intl. Airport (329 m, Minnesota) |
8 |
|
| Allegheny (382 m, Pensilvânia) |
8 |
|
| Aeroporto Internacional de Anchorage Te (42 m, Alasca) |
6 |
1500-2000m |
| Martha's Vineyard Airport (21 m, Massachusetts) |
8 |
|
| Aeroporto de Kahului (20 m, Havaí) |
2 |
1500-2000m |
| Crookston Municipal Airport (273 m, Minnesota) |
6 |
|
| Englehart Airport (243 m, Ontário) |
8 |
300-600m |
| Franklin County State Airport (70 m, Vermont) |
4 |
|
| Mahnomen Aeroporto (379 m, Minnesota) |
6 |
|
| Devils Lake Regional Airport (443 m, Dakota do Norte) |
8 |
|
| Sandspit (6 m, Colúmbia Britânica) |
8 |
1500-2000m |
| Rankin Inlet Aeroporto (29 m, Nunavut) |
6 |
200-300m |
| DuPage Airport (231 m, Illinois) |
8 |
|
| New Bedford Regional Airport (23 m, Massachusetts) |
8 |
|
| Las Cruces Intl. Airport (1358 m, Novo México) |
0 |
|
| Nantucket Memorial Airport (13 m, Massachusetts) |
8 |
|
| Napa Aeroporto (10 m, Califórnia) |
8 |
|
| Needles Airport (302 m, Califórnia) |
0 |
|
| General William J. Fox Airfield (712 m, Califórnia) |
0 |
|
| Resolute AP (67 m, Nunavut) |
8 |
100-200m |
| Baker Lake Aeroporto (18 m, Nunavut) |
8 |
300-600m |
| Eureka Aeroporto (11 m, Nunavut) |
7 |
2000-2500m |
| Houghton (327 m, Michigan) |
0 |
|
| Chicago Executive Airport (197 m, Illinois) |
8 |
|
| Sable Island (1 m, Nova Escócia) |
8 |
50-100m |
| Burlington Intl. Airport (104 m, Vermont) |
0 |
>2500m |
| Gunnison (2339 m, Colorado) |
4 |
|
| Mercury/Desert Rock (1006 m, Nevada) |
0 |
>2500m |
| Park Rapids Municip (437 m, Minnesota) |
8 |
|
| Detroit Lakes Airport (426 m, Minnesota) |
8 |
|
| Ft Severn (15 m, Ontário) |
8 |
300-600m |
| Thief River Falls Regional Airport (340 m, Minnesota) |
8 |
|
| Moorhead Municipal Airport (280 m, Minnesota) |
8 |
|
| Kapuskasing (227 m, Ontário) |
8 |
200-300m |
| Perry Stokes Airport (1756 m, Colorado) |
0 |
|
| Sable Island Airport (5 m, Nova Escócia) |
8 |
|
| Inukjuak (25 m, Quebec) |
8 |
100-200m |
| Block (33 m, Rhode Island) |
8 |
|
| Winnipeg Aeroporto (239 m, Manitoba) |
6 |
|
| Roberval Aeroporto (187 m, Quebec) |
7 |
2000-2500m |
| Hill Air Force Base (1459 m, Utah) |
0 |
|
| Santa Fe Regional Airport (1933 m, Novo México) |
2 |
|
| Corvallis Municipal Airport (75 m, Oregon) |
0 |
|
| Gjoa Haven Aeroporto (46 m, Nunavut) |
8 |
100-200m |
| Baie-Comeau Aeroporto (22 m, Quebec) |
8 |
>2500m |
| Provincetown Aeroporto (2 m, Massachusetts) |
6 |
|
| Laramie Aeroporto (2218 m, Wyoming) |
0 |
|
| Lethbridge (929 m, Alberta) |
8 |
>2500m |
| Hanford Municipal Airport (75 m, Califórnia) |
0 |
|
| Thunder Bay Aeroporto (206 m, Ontário) |
0 |
|
| Biggs Army Airfield (1204 m, Texas) |
0 |
|
| Arthur N. Neu Airport (375 m, Iowa) |
2 |
|
| Range Regional Airport (410 m, Minnesota) |
8 |
|
| Aeroporto Municipal de La Crosse (202 m, Wisconsin) |
0 |
|
| Base da Guarda Nacional do Ar de Otis (40 m, Massachusetts) |
8 |
|
| Mirabel Aeroporto (82 m, Quebec) |
2 |
|
| Montrose Aeroporto (1755 m, Colorado) |
0 |
|
| Eveleth Muni (Awos) (421 m, Minnesota) |
8 |
|
| Roseau Muni (Awos) (323 m, Minnesota) |
6 |
|
| Ottawa Int AP (114 m, Ontário) |
3 |
300-600m |
| Saint-Hubert Airport (28 m, Quebec) |
8 |
1000-1500m |
| Grand Strand Airport (10 m, Carolina do Sul) |
8 |
|
| Fosston (388 m, Minnesota) |
8 |
|
| Crescent City (17 m, Califórnia) |
8 |
|
| Langdon Aeroporto (490 m, Dakota do Norte) |
8 |
|
| Fresno Yosemite Intl. Airport (100 m, Califórnia) |
0 |
>2500m |
| Presidio Aeroporto (896 m, Texas) |
0 |
|
| Lebanon Municipal Airport (182 m, Nova Hampshire) |
8 |
|
| Bemidji Regional Airport (420 m, Minnesota) |
8 |
|
| Pueblo Memorial Airport (1439 m, Colorado) |
2 |
>2500m |
| Cumberland Municipal Airport (378 m, Wisconsin) |
0 |
|
| Michael J. Smith Field (3 m, Carolina do Norte) |
0 |
|
| Cando Aeroporto (450 m, Dakota do Norte) |
8 |
|
| Worcester Aeroporto (308 m, Massachusetts) |
8 |
|
| Grants Milan Mun. AP (1987 m, Novo México) |
0 |
|
| Pittsfield Municipal Airport (364 m, Massachusetts) |
8 |
|
| Lihue Aeroporto (32 m, Havaí) |
2 |
600-1000m |
| Jaffrey Airport (317 m, Nova Hampshire) |
8 |
|
| Oelwen (328 m, Iowa) |
0 |
|
| Creech Air Force Base Airport (951 m, Nevada) |
0 |
|
| Sierra Vista Municipal Airport (1421 m, Arizona) |
0 |
|
| Base Aérea Edwards (705 m, Califórnia) |
0 |
|
| Hancock (26 m, Maine) |
2 |
|
| Clines Corner (2160 m, Novo México) |
6 |
|
| McGregor Aeroporto (374 m, Minnesota) |
8 |
|
| Aeroporto Nacional Ronald Reagan de Was (20 m, Virgínia) |
8 |
300-600m |
| Jamestown Regional Airport (454 m, Dakota do Norte) |
8 |
|
| Bethel Aeroporto (44 m, Alasca) |
0 |
>2500m |
| Aniak Airport (26 m, Alasca) |
0 |
>2500m |
| Aeroporto Internacional de Honolulu (5 m, Havaí) |
6 |
600-1000m |
| Plattsburgh Intl. Airport (72 m, Nova Iorque) |
2 |
|
| Adirondack Regional Airport (507 m, Nova Iorque) |
8 |
|
| Base aérea Andrews (88 m, Maryland) |
8 |
|
| Mont-Joli Aeroporto (54 m, Quebec) |
7 |
>2500m |
| Marshfield Municipal Airport (389 m, Wisconsin) |
0 |
|
| Cambridge Bay Airport (23 m, Nunavut) |
8 |
600-1000m |
| Rouyn Airport (301 m, Quebec) |
8 |
|
| Fergus Falls Municipal Airport (361 m, Minnesota) |
6 |
|
| Aeroporto Internacional de Grand Forks (255 m, Dakota do Norte) |
2 |
|
| Moosonee Aeroporto (9 m, Quebec) |
8 |
|
| Havre (792 m, Montana) |
0 |
>2500m |
| Brainerd Lakes Regional Airport (374 m, Minnesota) |
8 |
|
| Jimmy Lake (636 m, Saskatchewan) |
0 |
>2500m |
| Edwards (701 m, Califórnia) |
0 |
|
| Halifax Aeroporto (145 m, Nova Escócia) |
5 |
50-100m |
| Newton Municipal Airport (290 m, Iowa) |
0 |
|
| Francis S. Gabreski Airport (20 m, Nova Iorque) |
8 |
|
| New Ulm Municipal Airport (308 m, Minnesota) |
0 |
|
| Elbow Lake (367 m, Minnesota) |
8 |
|
| Instalação de Voo Wallops (12 m, Virgínia) |
8 |
50-100m |
| Lewistown Municipal Airport (1263 m, Montana) |
0 |
|
| Hat Isl. (36 m, Nunavut) |
8 |
100-200m |
| Sudbury Airport (348 m, Ontário) |
8 |
100-200m |
| Massena Intl. Airport (65 m, Nova Iorque) |
4 |
|
| Hay River Aeroporto (170 m, Territórios do Noroeste) |
1 |
>2500m |
| Aeroporto Internacional Rhode (19 m, Rhode Island) |
8 |
100-200m |
| Apalachicola Aeroporto (6 m, Flórida) |
2 |
|
| Northeast Iowa Regional Airport (343 m, Iowa) |
0 |
|
| Shenandoah Muni (296 m, Iowa) |
0 |
|
| Lancaster Aeroporto (123 m, Pensilvânia) |
8 |
|
| Webster City (342 m, Iowa) |
0 |
|
| Gagetown Awos A (51 m, Nova Brunswick) |
0 |
>2500m |
| Boone Aeroporto (354 m, Iowa) |
0 |
|
| Fernandina Beach Municipal Airport (5 m, Flórida) |
0 |
|
| Grant County Airport (1638 m, Novo México) |
0 |
|
| Lamoni (342 m, Iowa) |
0 |
|
| Estherville Muni (401 m, Iowa) |
0 |
|
| Fredericton Intl. Airport (31 m, Nova Brunswick) |
8 |
>2500m |
| Glasgow Aeroporto (693 m, Montana) |
0 |
>2500m |
| Harlan Aeroporto (375 m, Iowa) |
0 |
|
| Clovis Municipal Airport (1284 m, Novo México) |
0 |
|
| Iowa Falls Aeroporto (347 m, Iowa) |
0 |
|
| Oskaloosa Aeroporto (256 m, Iowa) |
0 |
|
| Richard I. Bong Airport (206 m, Wisconsin) |
0 |
|
| Stockton Metropolitan Airport (8 m, Califórnia) |
0 |
>2500m |
| Lea (1114 m, Novo México) |
0 |
|
| Aeroporto Internacional de Oakland (6 m, Califórnia) |
6 |
|
| Barstow-Daggett Airport (587 m, Califórnia) |
0 |
|
| Los Alamos Aeroporto (2186 m, Novo México) |
0 |
|
| Churchill Airport (29 m, Manitoba) |
8 |
300-600m |
| Ely Airport (1909 m, Nevada) |
0 |
>2500m |
| Rusk County Airport (377 m, Wisconsin) |
0 |
|
| Lander/Hunt Field Airport (1694 m, Wyoming) |
0 |
|
| Albany Aeroporto (89 m, Nova Iorque) |
8 |
300-600m |
| Aeroporto do Central de Wisconsin (389 m, Wisconsin) |
0 |
|
| Aeroporto Internacional de Fort Lauderd (7 m, Flórida) |
4 |
|
| Aeroporto Internacional John F. Kennedy (7 m, Nova Iorque) |
não identificável |
50-100m |
| Yuba (19 m, Califórnia) |
0 |
|
| Grafton Aeroporto (251 m, Dakota do Norte) |
2 |
|
| Apalachicola Aeroporto (6 m, Flórida) |
2 |
300-600m |
| Ontario Intl. Airport (287 m, Califórnia) |
2 |
|
| Grand Forks Air Force Base (276 m, Dakota do Norte) |
0 |
|
| Sioux Lookout Airport (390 m, Ontário) |
8 |
200-300m |
| Aeroporto Internacional de Sacramento (7 m, Califórnia) |
0 |
|
| Kindersley Regional Airport (698 m, Saskatchewan) |
7 |
>2500m |
| Niagara Falls Intl. Airport (180 m, Nova Iorque) |
0 |
|
| Nut Tree Airport (34 m, Califórnia) |
0 |
|
| Naval Air Station Lemoore (73 m, Califórnia) |
0 |
|
| Marin (1 m, Califórnia) |
0 |
|
| Sherbrooke Airport (242 m, Quebec) |
8 |
2000-2500m |
| Beatrice Municipal (403 m, Nebraska) |
0 |
|
| Philip Billard Municipal Airport (269 m, Kansas) |
0 |
>2500m |
| Aeroporto Internacional de Denver (1656 m, Colorado) |
6 |
1500-2000m |
| Edmonton Int. Airport (707 m, Alberta) |
8 |
2000-2500m |
| Montreal Aeroporto Trudeau (34 m, Quebec) |
2 |
1500-2000m |
| Hays Regional Airport (609 m, Kansas) |
0 |
|
| Edmonton Namao (685 m, Alberta) |
7 |
2000-2500m |
| Russell Aeroporto (566 m, Kansas) |
0 |
|
| Winkler Aeroporto (855 m, Texas) |
0 |
|
| Naval Station Mayport (5 m, Flórida) |
0 |
|
| Academia da Força Aérea d (1999 m, Colorado) |
0 |
|
| Colorado Plains Regional Airport (1421 m, Colorado) |
8 |
|
| Tekamah (Asos) (312 m, Nebraska) |
0 |
|
| London Aeroporto (278 m, Ontário) |
1 |
1500-2000m |
| Greeley- Weld County Airport (1420 m, Colorado) |
8 |
|
| Converse (1502 m, Wyoming) |
0 |
|
| Wayne County Airport (294 m, Kentucky) |
0 |
|
| Yampa Valley Airport (2012 m, Colorado) |
0 |
|
| La Junta Municipal Airport (1278 m, Colorado) |
4 |
|
| Matagami (280 m, Califórnia) |
8 |
200-300m |
| Val-d'Or (337 m, Califórnia) |
8 |
200-300m |
| Sauk Centre Muni (379 m, Minnesota) |
8 |
|
| Jerome (1233 m, Idaho) |
0 |
|
| Laconia Municipal Airport (166 m, Nova Hampshire) |
8 |
|
| Buckley Space Force Base (1726 m, Colorado) |
6 |
|
| Springerville Muni (2150 m, Arizona) |
0 |
|
| Newport (73 m, Arkansas) |
0 |
|
| Shively Field Airport (2138 m, Wyoming) |
0 |
|
| Kemmerer Municipal Airport (2220 m, Wyoming) |
0 |
|
| Tangier (2 m, Texas) |
8 |
|
| Barnes Aeroporto (427 m, Dakota do Norte) |
8 |
|
| Sault Ste Marie (192 m, Ontário) |
5 |
0-50m |
| Knox County Regional Airport (17 m, Maine) |
0 |
|
| Waterloo Well Airport (315 m, Ontário) |
0 |
>2500m |
| Bangor Intl. Airport (56 m, Maine) |
0 |
|
| Hamilton Aeroporto (238 m, Ontário) |
3 |
>2500m |
| Ogdensburg Intl. Airport (91 m, Nova Iorque) |
8 |
|
| Phillips Army Airfield (18 m, Maryland) |
8 |
|
| Wiarton Airport (223 m, Ontário) |
7 |
300-600m |
| Annapolis (2 m, Maryland) |
8 |
|
| Langlade (464 m, Wisconsin) |
0 |
|
| Aeroporto Internacional Logan (9 m, Massachusetts) |
8 |
200-300m |
| Westover Metropolitan Airport (75 m, Massachusetts) |
8 |
|
| Taunton Municipal Airport (13 m, Massachusetts) |
8 |
|
| Saskatoon AP (503 m, Saskatchewan) |
2 |
|
| Moosonee (9 m, Ontário) |
8 |
200-300m |
| Harriman-and-West Airport (201 m, Massachusetts) |
0 |
|
| Kenora Airport (406 m, Ontário) |
5 |
300-600m |
| Plymouth Municipal Airport (45 m, Massachusetts) |
8 |
|
| Gerald R. Ford Intl. Airport (245 m, Michigan) |
8 |
200-300m |
| Muskegon (193 m, Michigan) |
8 |
100-200m |
| Aeroporto Internacional de Lansing (266 m, Michigan) |
6 |
2000-2500m |
| Langley Air Force Base (6 m, Virgínia) |
8 |
|
| Rowley Island (41 m, Nunavut) |
0 |
>2500m |
| Kingman Airport (1033 m, Arizona) |
0 |
>2500m |
| Wray Aeroporto (1087 m, Colorado) |
8 |
|
| Taloyoak Aeroporto (28 m, Nunavut) |
8 |
600-1000m |
| Bradley Intl. Airport (55 m, Connecticut) |
8 |
100-200m |
| Aeroporto Internacional de Phoenix Sky (337 m, Arizona) |
2 |
>2500m |
| Aeroporto Internacional de Tucson (779 m, Arizona) |
0 |
>2500m |
| Pickle Lake(Man) (386 m, Ontário) |
8 |
|
| Moriarty Aeroporto (1889 m, Novo México) |
6 |
|
| Joliet Regional Airport (177 m, Illinois) |
8 |
|
| Dryden Aeroporto (413 m, Ontário) |
8 |
100-200m |
| Dover Base Housing (9 m, Delaware) |
6 |
|
| Aurora Municipal Airport (215 m, Illinois) |
8 |
|
| McGuire AFB (41 m, Nova Jersey) |
8 |
|
| Billy Mitchell Airport (4 m, Carolina do Norte) |
8 |
|
| Aeroporto Internacional de Miami (4 m, Flórida) |
6 |
600-1000m |
| Saginaw (183 m, Michigan) |
8 |
|
| Fort Wayne Intl. Airport (252 m, Indiana) |
6 |
>2500m |
| Aeroporto Internacional de Minneapolis- (255 m, Minnesota) |
2 |
>2500m |
| Rochester Intl. Airport (402 m, Minnesota) |
0 |
>2500m |
| Warroad International Memorial Airport (327 m, Minnesota) |
8 |
|
| Aberdeen Aeroporto (397 m, Dakota do Sul) |
0 |
>2500m |
| Cannon AFB (1309 m, Novo México) |
0 |
|
| Cape May Airport (7 m, Nova Jersey) |
8 |
|
| Sydney Aeroporto (72 m, Nova Escócia) |
4 |
>2500m |
norte - sul