North America - Pressure tendency (hPa last 3 hours)
Thursday 29 Sep 2016 10:00 BST

Stations: 2339 SLP tendency
Yorkton Airport (498 m, Saskatchewan) - 0.6
Yorkton Airport (498 m, Saskatchewan) - 0.6
Yoho National Park (1615 m, British Columbia) - 0.3
Yohin (204 m, Northwest Territories) - 0.5
Yellowknife Airport (206 m, Northwest Territories) - 0.5
Yeager Airport (299 m, West-Virginia) - 0.5
Yarmouth Airport (46 m, Nova Scotia) - 0.6
Wynyard (560 m, Saskatchewan) - 0.6
Wreckhouse (33 m, Newfoundland) - 0.8
Woodstock (218 m, New Brunswick) - 0.0
Winterland (29 m, Newfoundland) - 1.6
Winnipeg A Cs (239 m, Manitoba) - 0.7
Windsor Airport (190 m, Ontario) - 0.3
Wilmington Intl. Airport (10 m, North Carolina) - 0.4
Willow Creek 1 (1402 m, Alberta) - 0.2
Williams Lake Airport (942 m, British Columbia) - 0.2
Will Rogers World Airport (398 m, Oklahoma) - 0.5
Wilkes-Barre/Scranton Intl. Airport (289 m, Pennsylvania) - 0.6
Wiarton Airport (223 m, Ontario) - 0.9
Whitehorse (707 m, California) - 1.3
White Rock Campbell Scientific (13 m, British Columbia) - 0.1
Weyburn (589 m, Saskatchewan) - 0.6
Western Islands (191 m, Ontario) - 1.1
Western Head (10 m, Nova Scotia) - 0.5
West Vancouver (178 m, British Columbia) - 0.1
Welland Pelham (178 m, Ontario) - 0.8
Welcome Island (AUT) (209 m, Ontario) - 1.2
Watson Lake Airport (690 m, Yukon) - 0.5
Watrous East (526 m, Saskatchewan) - 1.6
Waterloo Well AP (315 m, Ontario) - 1.0
Waskesiu Lake (569 m, Saskatchewan) - 1.0
Waseca (640 m, California) - 1.3
Wasagaming (627 m, Manitoba) - 0.1
Warfield (567 m, British Columbia) - 0.0
Wainwright Cfb Airfield 21 (686 m, Alberta) - 1.1
Wager Bay (18 m, Northwest Territories) - 0.0
Wabush Airport (551 m, Newfoundland) - 0.4
Violet Grove (903 m, Alberta) - 0.4
Vineland Station RCS (79 m, Ontario) - 1.0
Villeneuve Airport (270 m, Alberta) - 0.5
Victoria Uni. Campbell Scientific (49 m, British Columbia) - 0.2
Victoria Gonzales (70 m, British Columbia) - 0.2
Victoria (IAP) (19 m, British Columbia) - 0.0
Vernon (482 m, British Columbia) - 0.0
Vegreville (639 m, Alberta) - 0.6
Vauxhall (779 m, Alberta) - 1.2
Vancouver Sea Island Ccg (2 m, California) - 0.1
Vancouver Airport (4 m, British Columbia) - 0.0
Val-d'Or (337 m, California) - 1.1
Val Marie Southeast (785 m, Saskatchewan) - 1.0
Uxbridge (375 m, Ontario) - 1.0
Uranium City (321 m, Saskatchewan) - 0.2
Upsala (489 m, Ontario) - 1.2
Upper Stewiacke Rcs (24 m, Nova Scotia) - 0.3
Twillingate (AUT) (92 m, Newfoundland) - 0.4
Tuktut Nogait (552 m, Northwest Territories) - 0.8
Tuktoyaktuk (5 m, Northwest Territories) - 1.0
Tukialik Bay (683 m, Newfoundland) - 0.4
Trois-Rivières (6 m, Quebec) - 0.5
Tri-State Airport (255 m, West-Virginia) - 0.1
Trail Valley (85 m, Northwest Territories) - 0.9
Tracadie (67 m, Nova Scotia) - 0.2
Toronto/Pearson AP (173 m, Ontario) - 0.9
Toronto Islands Airport (77 m, Ontario) - 0.7
Toronto (113 m, Ontario) - 0.9
Tobermory (214 m, Ontario) - 1.0
Timmins Victor M. Power Airport (295 m, Ontario) - 1.3
Timmins (294 m, Ontario) - 1.3
Thunder Bay (199 m, Ontario) - 1.2
Thunder Bay (199 m, Ontario) - 1.3
Thomsen River (42 m, Northwest Territories) - 0.9
Thompson Airport (216 m, Manitoba) - 0.9
The Pas Airport (270 m, Manitoba) - 0.2
The Pas (274 m, California) - 0.2
The Forks, Winnipeg (230 m, Manitoba) - 0.7
Teslin (705 m, Yukon) - 0.8
Terrace Airport (217 m, British Columbia) - 0.2
Terra Nova Nat Park CS (107 m, Newfoundland) - 1.0
Tatlayoko Lake RCS (875 m, British Columbia) - 0.4
Tampa Intl. Airport (3 m, Florida) - 1.4
Taloyoak Airport (28 m, Nunavut) - 0.9
Tadoule Lake (281 m, Manitoba) - 1.2
TROIS-RIVIERES (60 m, California) - 0.5
Syracuse Hancock Intl. Airport (124 m, New York) - 0.4
Sydney Rcs (63 m, Nova Scotia) - 0.9
Sydney Airport (72 m, Nova Scotia) - 0.9
SwiftCurrent (820 m, Saskatchewan) - 1.1
Swift Current (825 m, Saskatchewan) - 1.2
Swan River (335 m, Manitoba) - 0.9
Sussex (47 m, New Brunswick) - 0.8
Sundre A (1114 m, Alberta) - 0.8
Summerside (21 m, Prince Edward Island) - 0.7
Summerland (454 m, British Columbia) - 0.2
Sudbury Airport (348 m, Ontario) - 1.1
Stony Rapids Airport (248 m, Saskatchewan) - 0.0
Stony Plain Airport (766 m, Alberta) - 0.6
Stephenville Intl. Airport (9 m, Newfoundland) - 0.7
Stephenville (58 m, California) - 0.7
Stefansson Is (11 m, Northwest Territories) - 0.1
Stavely (1364 m, Alberta) - 1.3
St.Anthony A (32 m, Newfoundland) - 0.5
St. Peters (30 m, Prince Edward Island) - 0.3
St. Lawrence (49 m, Newfoundland) - 1.7
St Stephen (28 m, New Brunswick) - 0.5
St Paul Isl (26 m, Nova Scotia) - 0.2
St Leonard CS (245 m, New Brunswick) - 0.0
St Jovite (239 m, Quebec) - 0.8
St Johns West (110 m, Newfoundland) - 1.0
St Anthony (32 m, Newfoundland) - 0.5
St Anicet 1 (49 m, Quebec) - 0.8
Squamish Airport (52 m, British Columbia) - 0.3
Sprague (329 m, Manitoba) - 1.0
Spokane Airport (721 m, Washington) - 0.2
Spiritwood (584 m, Saskatchewan) - 1.4
Spirit River (1015 m, Alberta) - 0.2
Sparwood (1138 m, British Columbia) - 0.0
Southend (344 m, Saskatchewan) - 0.2
Solander Island (99 m, British Columbia) - 0.5
Smithers Airport (523 m, British Columbia) - 0.4
Smithers (517 m, British Columbia) - 0.3
Slave Lake (583 m, Alberta) - 0.3
Slave Lake (583 m, Alberta) - 0.3
Sisters Island (20 m, British Columbia) - 0.0

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2016