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 | Areas of Strong Tornado Occurrence | Areas of Strong Tornado Occurrence | Areas of Strong Tornado Occurrence | Areas of Strong Tornado Occurrence | -2.0 to 0.0 | 0.0 to 1.9 | 2.0 to 3.9 | 4.0 to 5.9 | 6.0 to 7.9 | 8.0 to 9.9 | 10.0 to 11.9 | 12.0 to 13.9 | 14.0 to 15.9 | 18.0 to 19.9 | 20.0 to 21.9 | 22.0 to 23.9 | 24.0 to 25.9 | 26.0 to 27.9 | 28.0 to 29.9 | Class | Rank | US dollars | very high (>300) | high (100–300) | medium (20–100) | low (2–20) | very low (<2) | high (100–300) | medium (20–100) | low–very low (<20) | very high–high (>100) | medium–very low (<100) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 43.92 | 15.166666666666666 | 4.954545454545454 | 1.4285714285714286 | 1.06% | 0.769% | 0.553% | 0.725% | 0.603% | 0.825% | 0.239% | 0.135% | 0.206% | 0.342% | 0.126% | 0.317% | 1.60% | 0.778% | 4.46% | 6.63% | 17.7% | 9.02% | 11.0% | 16.0% | 11.5% | 10.1% | 12.7% | 26.5% | 24.8% | ||||
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