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cited_by: []
definition: |-
  The Pacific Transition (PT) pattern is a leading mode during August and September. This pattern captures anomalous wave-train of 500-hPa heights extending from the central subtropical North Pacific to the eastern United States. The positive phase of the PT pattern features above-average heights west of Hawaii and across western North America, and below-average heights in the Gulf of Alaska and over the southeastern United States.
  
  The PT pattern is associated with above-average surface temperatures in the western subtropical North Pacific, the subtropical North Atlantic, and throughout western North America, and with below-average temperatures over the eastern half of the United States. The main precipitation departures associated with the PT pattern include above-average precipitation in the southeastern U.S., and below-average precipitation near Hawaii and across the northern tier of the United States.
href: https://data.globalchange.gov/gcmd_keyword/233903dd-daec-474f-ac2e-cdcad84a85b5.yaml
identifier: 233903dd-daec-474f-ac2e-cdcad84a85b5
label: Pacific Transition Index
parent_identifier: b887d3e5-4280-43d2-a34e-0f63ac086b6a
uri: /gcmd_keyword/233903dd-daec-474f-ac2e-cdcad84a85b5