High Pressure
North AmericaPhysical EnvironmentA region where atmospheric pressure at the surface is greater than surrounding areas
NOAAA map highlights the high-pressure regions in North America with a letter H enclosed in a circle. Near Columbia Kootenay Mountain and, near Ottawa.
High Pressure | Tropical rain forest (Af) | Tropical monsoon (Am) | Tropical savanna (Aw) | Tropical, subtropical hot desert (BWh) | Midlatitude cold desert (BWk) | Tropical, subtropical hot steppe (BSh) | Midlatitude cold steppe (BSk) | Humid subtropical moist all year, hot summer (Cfa) | Marine West Coast (Cfb, Cfc) | Mediterranean (Csa, Csb) | Humid continental, hot summers (Dfa, Dwa, Dsa) | Humid continental, mild summers (Dfb, Dwb, Dsb) | Subarctic, cool summer (Dfc, Dwc, Dsc) | Tundra (ET) | Sea Level to -200 | -201 to -2000 | -2001 to -3000 | -3001 to -4000 | -4001 to -5000 | Evergreen forest | Deciduous forest | Water | Mixed forest | Shrublands | Savannas | Grasslands | Permanent wetlands | Urban and built-up | Cropland and natural vegetation | Snow and ice | Barren or sparsely vegetated | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Alaska | 0.263% | 0.281% | 82.1% | 11.6% | 5.00% | 0.196% | 0.877% | 0.260% | 33.1% | 23.3% | 3.90% | 0.194% | ||||||||||||||||||||
Arizona | 23.6% | 2.88% | 10.7% | 39.0% | 0.733% | 5.07% | 1.24% | 82.2% | 0.905% | 12.8% | 2.58% | |||||||||||||||||||||
Utah | 0.588% | 61.0% | 7.26% | 6.12% | 1.37% | 71.1% | 6.04% | |||||||||||||||||||||||||
Yukon | 98.1% | 1.84% | 0.521% | 11.0% | 34.4% | 44.3% | 0.183% | 4.06% | ||||||||||||||||||||||||
Northwest Territories | 0.348% | 72.6% | 0.290% | 5.35% | 0.496% | 8.23% | 2.25% | 0.109% | 50.3% | 0.342% | 0.521% | 0.256% | ||||||||||||||||||||
District of Columbia | 100% | 90.9% | 9.14% | |||||||||||||||||||||||||||||
Florida | 4.03% | 1.55% | 91.4% | 5.18% | 0.732% | 69.7% | 6.73% | 2.76% | 0.989% | |||||||||||||||||||||||
Idaho | 2.91% | 30.2% | 3.27% | 54.9% | 1.18% | 34.0% | 57.6% | 2.52% | ||||||||||||||||||||||||
New Hampshire | 76.3% | 23.7% | 100% | |||||||||||||||||||||||||||||
Rhode Island | 13.3% | 69.7% | 12.2% | 42.8% | 46.8% | |||||||||||||||||||||||||||
Vermont | 99.7% | 0.255% | 52.7% | 32.3% | 14.6% | |||||||||||||||||||||||||||
Washington | 5.04% | 1.86% | 1.11% | 24.0% | 43.6% | 0.845% | 38.7% | 30.4% | 2.11% | |||||||||||||||||||||||
Wyoming | 7.26% | 46.3% | 0.567% | 32.4% | 12.0% | 5.80% | 92.0% | |||||||||||||||||||||||||
Nunavut | 11.8% | 17.3% | 13.1% | 0.925% | 17.6% | 0.661% | 14.7% | |||||||||||||||||||||||||
Montana | 57.3% | 38.2% | 1.27% | 18.5% | 76.4% | 1.52% | ||||||||||||||||||||||||||
Maine | 93.3% | 6.03% | 1.83% | 98.8% | ||||||||||||||||||||||||||||
North Dakota | 10.1% | 1.48% | 86.6% | 23.6% | 1.29% | |||||||||||||||||||||||||||
Kentucky | 92.1% | 7.93% | 34.2% | 65.3% | ||||||||||||||||||||||||||||
Nova Scotia | 75.7% | 25.6% | 77.1% | |||||||||||||||||||||||||||||
Virginia | 80.5% | 3.31% | 4.25% | 9.08% | 1.98% | 37.9% | 29.7% | 1.92% | 8.03% | |||||||||||||||||||||||
Delaware | 86.7% | 10.3% | 0.467% | 3.32% | 94.5% | |||||||||||||||||||||||||||
Prince Edward Island | 89.3% | 100% | 54.0% | |||||||||||||||||||||||||||||
Saskatchewan | 0.467% | 36.8% | 57.3% | 40.6% | 5.40% | 2.31% | 7.63% | 4.39% | 36.0% | |||||||||||||||||||||||
Mississippi | 99.8% | 29.5% | 9.44% | 22.9% | ||||||||||||||||||||||||||||
West Virginia | 29.5% | 25.5% | 4.76% | 96.2% | 1.85% | |||||||||||||||||||||||||||
Nebraska | 17.7% | 79.4% | 2.90% | 60.9% | 39.1% | |||||||||||||||||||||||||||
Texas | 2.54% | 13.8% | 23.0% | 60.1% | 0.376% | 16.6% | 11.5% | 63.9% | 0.593% | 0.322% | ||||||||||||||||||||||
Missouri | 26.4% | 72.3% | 13.6% | 1.69% | 84.7% | |||||||||||||||||||||||||||
Louisiana | 97.6% | 2.97% | 3.55% | 21.5% | 12.9% | 26.3% | ||||||||||||||||||||||||||
Hawaii | 6.90% | 5.68% | 2.83% | 0.523% | 1.62% | 37.5% | 4.46% | 2.11% | 0.113% | 57.1% | ||||||||||||||||||||||
North Carolina | 91.1% | 3.09% | 0.441% | 1.71% | 2.93% | 0.571% | 11.8% | 22.1% | ||||||||||||||||||||||||
Oregon | 6.51% | 31.0% | 31.1% | 15.4% | 5.08% | 39.9% | 46.3% | 1.78% | ||||||||||||||||||||||||
New Brunswick | 97.3% | 4.32% | 98.0% | |||||||||||||||||||||||||||||
Alabama | 100% | 0.218% | 1.53% | 41.9% | 10.2% | 1.99% | ||||||||||||||||||||||||||
New Mexico | 0.730% | 68.2% | 0.895% | 2.27% | 0.265% | 0.661% | 14.3% | 0.207% | 2.71% | 48.6% | 33.8% | 0.141% | ||||||||||||||||||||
Kansas | 22.6% | 9.98% | 67.4% | 76.0% | 8.38% | |||||||||||||||||||||||||||
Wisconsin | 21.4% | 78.5% | 5.34% | 0.733% | 24.3% | 69.7% | ||||||||||||||||||||||||||
British Columbia | 1 | 0.184% | 0.977% | 0.593% | 0.282% | 40.5% | 47.6% | 3.13% | 0.166% | 10.9% | 4.59% | 0.944% | 0.141% | 0.358% | 0.225% | 5.56% | ||||||||||||||||
Newfoundland and Labrador | 13.1% | 63.7% | 9.22% | 3.93% | 22.0% | 15.0% | 29.3% | 14.1% | 2.34% | |||||||||||||||||||||||
New Jersey | 24.0% | 56.9% | 17.8% | 10.6% | 15.9% | 31.5% | 35.6% | 7.11% | ||||||||||||||||||||||||
South Carolina | 99.3% | 0.150% | 0.154% | 3.99% | 13.8% | 0.475% | 4.46% | |||||||||||||||||||||||||
Michigan | 16.9% | 83.0% | 0.172% | 1.66% | 3.94% | 16.6% | 1.80% | 48.8% | ||||||||||||||||||||||||
Alberta | 3.24% | 63.2% | 13.0% | 24.3% | 30.3% | 0.208% | 3.41% | 0.266% | ||||||||||||||||||||||||
Connecticut | 51.3% | 48.4% | 2.84% | 98.8% | ||||||||||||||||||||||||||||
Pennsylvania | 0.122% | 52.0% | 44.8% | 54.7% | 1.93% | 18.7% | ||||||||||||||||||||||||||
Colorado | 56.3% | 2.11% | 28.6% | 8.17% | 0.521% | 7.58% | 0.276% | 88.5% | ||||||||||||||||||||||||
Nevada | 8.09% | 6.39% | 39.1% | 0.125% | 1.34% | 0.631% | 0.345% | 2.21% | 65.5% | 1.16% | ||||||||||||||||||||||
Massachusetts | 1.16% | 78.7% | 10.2% | 0.220% | 26.1% | 56.3% | 9.42% | |||||||||||||||||||||||||
Georgia | 99.6% | 0.332% | 2.03% | 1.36% | 6.94% | 16.9% | 1.91% | 2.16% | 0.313% | |||||||||||||||||||||||
New York | 2.68% | 93.4% | 2.96% | 27.2% | 0.385% | 15.0% | 0.153% | 0.584% | ||||||||||||||||||||||||
Maryland | 29.2% | 31.9% | 5.56% | 6.45% | 11.5% | 2.19% | 81.3% | |||||||||||||||||||||||||
Québec | 1 | 0.104% | 20.2% | 62.1% | 14.6% | 1.33% | 5.39% | 3.99% | 38.7% | 9.24% | 4.66% | 1.11% | ||||||||||||||||||||
Manitoba | 33.0% | 66.8% | 0.281% | 37.5% | 3.53% | 5.69% | 25.2% | 2.44% | 3.56% | 13.2% | ||||||||||||||||||||||
Oklahoma | 9.80% | 90.2% | 2.23% | 13.4% | 81.7% | 2.65% | ||||||||||||||||||||||||||
Tennessee | 98.2% | 1.29% | 0.470% | 23.2% | 3.17% | 14.9% | ||||||||||||||||||||||||||
Ontario | 0.290% | 53.6% | 42.8% | 0.732% | 32.1% | 0.585% | 0.132% | 3.80% | 0.824% | 18.9% | 0.176% | 6.74% | ||||||||||||||||||||
California | 19.3% | 2.56% | 1.48% | 0.371% | 49.0% | 7.52% | 1.53% | 0.275% | 25.6% | 27.5% | 1.33% | 8.18% | 1.87% | 10.1% | 0.505% | |||||||||||||||||
Arkansas | 100% | 10.7% | 33.2% | 2.79% | 0.791% | 52.5% | ||||||||||||||||||||||||||
South Dakota | 41.0% | 41.2% | 15.3% | 1.78% | 57.1% | 41.1% | ||||||||||||||||||||||||||
Ohio | 3.59% | 81.0% | 15.0% | 15.3% | 0.254% | 84.5% | ||||||||||||||||||||||||||
Indiana | 6.32% | 92.9% | 0.816% | 3.37% | 0.562% | 96.1% | ||||||||||||||||||||||||||
Minnesota | 15.1% | 84.4% | 0.174% | 28.8% | 0.689% | 70.4% | ||||||||||||||||||||||||||
Iowa | 96.5% | 0.309% | 100% | |||||||||||||||||||||||||||||
Illinois | 6.99% | 89.9% | 1.23% | 4.06% | 95.9% |