PPT Slide

HY-SPLIT / NGM Trajectories arriving

at 3 PM on July 20, 1994

at the following locations :

North Cape, PEI Green

Acadia NP, Me. Red

Cape Elizabeth, Me Purple

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By creating the 3 PM back trajectory for July 20th, 1994, there is the strong indication that the magnitude of the episode on the 21st may have been amplified by synoptic-scale “background” contributions from more westerly transport on the preceding day.