South America - Pressure tendency (hPa last 3 hours)
Friday 18 May 2012 16:00 BST

Stations: 282 SLP tendency
Rio de Janeiro (6 m, Brazil) - 0.5
Islad Orcadas (8 m, South Orkney Islands) - 0.7
Melo Airport (100 m, Uruguay) - 0.3
Rocha (18 m, Uruguay) - 0.7
Treinta y Tres Airport (46 m, Uruguay) - 0.3
Cataratas del Iguazú Intl. Airpo (270 m, Argentina) - 0.1
Guaraní Intl. Airport (236 m, Paraguay) - 0.3
Punta del Este (15 m, Uruguay) - 0.0
Laguna del Sauce (28 m, Uruguay) - 0.6
Capitán Meza (300 m, Paraguay) - 0.0
Rivera (242 m, Uruguay) - 0.4
Pedro Juan Caball. (662 m, Paraguay) - 1.1
Encarnación Airport (91 m, Paraguay) - 1.5
Posadas AP (125 m, Argentina) - 0.1
Tacuarembó Airport (134 m, Uruguay) - 0.7
Carrasco Intl. Airport (32 m, Uruguay) - 0.3
Prado (16 m, Uruguay) - 0.1
Melilla (48 m, Uruguay) - 0.9
Caazapá (142 m, Paraguay) - 0.6
Cnel.Oviedo (163 m, Paraguay) - 1.4
Villarrica (161 m, Paraguay) - 0.5
Durazno (92 m, Uruguay) - 0.3
Artigas Airport (120 m, Uruguay) - 0.6
Paso de los Toros (75 m, Uruguay) - 0.5
Paraguarí (116 m, Paraguay) - 1.2
Paso de los Libres Airport (70 m, Argentina) - 0.5
San Juan Bautista (126 m, Paraguay) - 0.9
Concepción Airport (74 m, Paraguay) - 1.1
Astor Piazzolla Intl. Airport (21 m, Argentina) - 1.3
Young (80 m, Uruguay) - 0.7
Asuncion/Silvio Pet AP (101 m, Paraguay) - 0.3
Monte Caseros Airport (54 m, Argentina) - 1.1
Dolores AP (9 m, Argentina) - 0.3
Puerto Suárez Airport (134 m, Bolivia) - 0.2
Colonia del Sacramento Airport (22 m, Uruguay) - 1.8
Puerto Casado (87 m, Paraguay) - 0.8
La Plata Airport (19 m, Argentina) - 1.1
Nueva Hesperides Intl. Airport (33 m, Uruguay) - 0.6
Comodoro Pierrestegui Airport (38 m, Argentina) - 1.2
Paysandú (61 m, Uruguay) - 1.0
Mercedes (17 m, Uruguay) - 1.0
Formosa Airport (60 m, Argentina) - 0.2
Pilar (56 m, Paraguay) - 0.2
San Matías (124 m, Bolivia) - 0.3
Aeroparque Jorge Newbery (6 m, Argentina) - 1.7
Buenos Aires/Ezeiza AP (20 m, Argentina) - 1.9
Gualeguaychú Airport (21 m, Argentina) - 2.0
Corrientes (62 m, Argentina) - 0.5
Pozo Colorado (100 m, Paraguay) - 0.1
Gral. Bruguez (60 m, Paraguay) - 0.9
Resistencia Intl. Airport (52 m, Argentina) - 0.4
Tandil Airport (175 m, Argentina) - 2.3
Reconquista (53 m, Argentina) - 0.1
Roboré (276 m, Bolivia) - 0.7
Azul Airport (147 m, Argentina) - 2.1
General Justo José de Urquiza Ai (78 m, Argentina) - 4.4
Sáenz Peña (93 m, Argentina) - 0.9
Las Lomitas (130 m, Argentina) - 0.9
Mariscal AP (181 m, Paraguay) - 0.4
San José de Chiquitos (284 m, Bolivia) - 0.0
Rosario (25 m, Argentina) - 1.3
Sauce Viejo Airport (18 m, Argentina) - 4.8
Junín Airport (81 m, Argentina) - 0.5
San Ignacio de Velasco (413 m, Bolivia) - 1.0
San Carlos de Bolívar (94 m, Argentina) - 1.9
Prats-Gil (220 m, Paraguay) - 1.1
Ceres Airport (88 m, Argentina) - 1.9
Concepción (497 m, Bolivia) - 1.1
Marcos Juárez Airport (114 m, Argentina) - 0.7
Bahia Blanca AP (83 m, Argentina) - 1.1
San Javier (534 m, Bolivia) - 0.6
F.D. Roosevelt Airport (40 m, Netherl. Antilles) - 0.6
Viedma Aero (7 m, Argentina) - 0.5
Ascencion De Guarayos (247 m, Bolivia) - 0.8
Viru Viru (IAP) (373 m, Bolivia) - 0.4
El Trompillo Airport (418 m, Bolivia) - 0.8
Laboulaye (137 m, Argentina) - 0.8
Villamontes (398 m, Bolivia) - 0.8
Camiri (798 m, Bolivia) - 0.2
Yacuiba Airport (645 m, Bolivia) - 1.5
Tartagal "General Enrique Mosconi" Airp (450 m, Argentina) - 1.5
Pilar Observatorio (338 m, Argentina) - 1.2
Monteagudo (992 m, Bolivia) - 0.0
Vallegrande (1998 m, Bolivia) - 0.9
Magdalena (140 m, Bolivia) - 1.8
Córdoba Airport (474 m, Argentina) - 0.4
Rio Cuarto AP (421 m, Argentina) - 0.1
Santa Rosa Airport (191 m, Argentina) - 1.2
Santiago del Estero Airport (199 m, Argentina) - 1.9
Bermejo (381 m, Bolivia) - 2.2
Oran Aero (357 m, Argentina) - 1.9
San Ramon (140 m, Bolivia) - 1.8
San Joaquin (140 m, Bolivia) - 1.8
Trinidad Airport (155 m, Bolivia) - 1.0
San Antonio Oeste Airport (20 m, Argentina) - 2.1
Jujuy AP (905 m, Argentina) - 1.3
Tucuman/Teniente AP (450 m, Argentina) - 1.7
Villa Dolores Airport (569 m, Argentina) - 1.5
Trelew Airport (43 m, Argentina) - 1.2
Juana Azurduy de Padilla Intl. Airport (2904 m, Bolivia) - 0.3
Villa Reynolds Airport (486 m, Argentina) - 0.4
Santa Ana del Yacuma Airport (144 m, Bolivia) - 1.4
Salta Airport (1221 m, Argentina) - 1.2
San Ignacio De Moxos (160 m, Bolivia) - 1.4
La Quiaca (3459 m, Argentina) - 0.3
Potosí (3935 m, Bolivia) - 0.3
Catamarca AP (454 m, Argentina) - 3.6
Puerto Deseado Airport (80 m, Argentina) - 1.1
Riberalta AP (141 m, Bolivia) - 1.4
Jorge Wilstermann Intl. Airport (2548 m, Bolivia) - 0.3
San Luis Airport (713 m, Argentina) - 0.5
La Rioja Airport (429 m, Argentina) - 3.9
San Borja (194 m, Bolivia) - 1.2
Oruro (3702 m, Bolivia) - 1.0
Reyes (280 m, Bolivia) - 1.9
Comodoro Rivadavia Airport (46 m, Argentina) - 1.7
Rurrenabaque (204 m, Bolivia) - 1.3
Puerto San Julián Airport (62 m, Argentina) - 0.5
Neuquén Airport (271 m, Argentina) - 0.1
La Paz/JFK (IAP) (4038 m, Bolivia) - 0.8
Flamingo Intl. Airport (7 m, Netherl. Antilles) - 0.2
Ushuaia Airport (57 m, Argentina) - 2.7
San Rafael Airport (748 m, Argentina) - 0.3
San Martín (653 m, Argentina) - 0.3
Domingo Faustino Sarmiento Airport (598 m, Argentina) - 0.8
Mendoza Airport (704 m, Argentina) - 0.5
Cobija (235 m, Bolivia) - 1.4
Calama (2320 m, Chile) - 0.1
Curaçao Intl. Airport (9 m, Netherl. Antilles) - 0.1
Río Gallegos Airport (19 m, Argentina) - 2.4
Malargüe Airport (1425 m, Argentina) - 0.4
Aruba/Reina Beatrix AP (5 m, Netherl. Antilles) - 0.1
Iquique/Diego Arac AP (48 m, Chile) - 0.7
Arica/Chacalluta AP (55 m, Chile) - 0.9
Antofagasta/Cerro AP (140 m, Chile) - 0.9
Quinta Normal (520 m, Chile) - 0.1
Desierto de Atacama Airport (210 m, Chile) - 0.3
Pudahuel/Arturo Mer AP (474 m, Chile) - 0.2
Punta Arenas Airport (43 m, Chile) - 2.0
Perito Moreno Airport (429 m, Argentina) - 2.1
Esquel Airport (797 m, Argentina) - 2.3
San Carlos de Bariloche Airport (840 m, Argentina) - 1.2
La Serena Airport (146 m, Chile) - 1.3
Santo Domingo (75 m, Chile) - 0.6
Punta Angeles (41 m, Chile) - 1.8
Balmaceda Airport (522 m, Chile) - 2.4
Chile Chico (326 m, Chile) - 2.5
Palena (277 m, Colorado) - 2.4
Futaleufú (318 m, Chile) - 2.5
Chillán (148 m, Chile) - 0.1
El Calafate Aero (204 m, Argentina) - 2.9
Coyhaique (311 m, Chile) - 2.8
Maquehue Airport (93 m, Chile) - 1.3
Carriel Sur Intl. Airport (12 m, Chile) - 0.5
Valdivia/Pichoy AP (19 m, Chile) - 2.2
El Tepual Airport (90 m, Chile) - 2.5
Puerto Williams (316 m, Chile) - 0.4
Robinson Crusoe I. (30 m, Chile) - 0.2
Easter Island Airport (69 m, Chile) - 1.5

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2012