2025-2026 ENSO

[GaWx]

11 hours ago, EastonSN+ said:

Phase 4 by the 22nd. Hopefully enough time left on the clock for another snowy period. Worst case is its too late but we end up with yet another cold and rainy spring.

 I finally finished my analysis of temperatures at Baltimore (as a rep. of the middle portion of the E coast) during the 20 La Niña Februaries (566 days, a big sample) by MJO phase. Keep in mind that La Niña Februaries in the E US have averaged a bit AN (+2.3F) as expected. That shouldn’t be forgotten when looking at each phase. So, that’s going to make it hard for any Niña phase to be cold in Feb. If a phase is colder (warmer) than +2.3, I’m considering it a cold (warm) phase on average relative to La Niña Feb climo.

 Here are the resulting anomalies (in degrees F) keeping in mind these are merely averages of a wide range from MB or B to MA for each phase:

Phase 1: +2.1 (near Niña Feb climo)

Phase 2: +4.4 (2nd warmest)

Phase 3: -1.5 (easily coldest at 3.8 colder than Niña Feb climo)

Phase 4: +3.3

Phase 5: +3.1

Phase 6: +5.5 (warmest)

Phase 7: +2.2 (near Nina Feb climo)

Phase 8: +0.7 (2nd coldest)

Data sources:

1. MJO for each day of the 20 La Niña Febs:

https://www.bom.gov.au/clim_data/IDCKGEM000/rmm.74toRealtime.txt

2. Daily Baltimore temperatures for each day in Feb:

https://www.weather.gov/wrh/Climate?wfo=lwx