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File: ENSO_composite_elNinoLaNina_map_20220224.png

File name: ENSO_composite_elNinoLaNina_map_20220224.png
Original Resolution (pixels): 2000 × 1500
File Size: 779 KB (MIME Type: image/png)
Alternate Text: Two maps of the northeastern Pacific showing the change in location and frequency of days with atmospheric rivers during El Niño winters versus La Niña winters
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Two maps of the northeastern Pacific showing the change in location and frequency of days with atmospheric rivers during El Niño winters versus La Niña winters

Image caption

Departures from the average number of days each winter (December–February) with an atmospheric river occurrence for (top) El Niño and (bottom) La Niña from 1992-2020. During El Niño winters, the number of days with atmospheric rivers is below average along the Alaska and western Canada coastlines, but above average along the U.S. West Coast. La Niña tends to bring the opposite: fewer atmospheric river days along the U.S.West Coast.