Tuesday, October 13, 2020

La Nina in the Tropical Pacific and its Implications on Central Texas


Stage II Alram Drought

Lovelady Well Height: 476 ft-msl

Barton Springs: approximately 38 cfs 10-day average

 In September 2020 the National Oceanic Atmospheric Association (NOAA) issued a La Nina advisory suggesting that there's a 75% chance it hangs around through the winter. Come this October an increased 85% chance it lasts through winter and into spring 2021.

So what is La Nina? What does it mean for weather and rain in Central Texas?

La Nina is the opposite of El Nino, a cooling of the equatorial east-central Pacific Ocean. The strength of the 2020 La Nina (weak, moderate or strong) will determine what impacts it may have on the weather this winter to next spring 2021. Typically, the southern tier of the U.S. sees drier than average conditions and temperatures that are above average, while much of the Pacific Northwest and the Ohio Valley are wetter than normal and see below average temperatures. (Weather Channel)










As of October 8th the Edwards and Trinity aquifers are in Alarm Stage II Drought. Due to a lack of rain and recharge in 2020 and the ensuing La Nina leading into 2021 it is paramount that we practice proper conservation techniques. For more info on the La Nina outlook visit: https://www.climate.gov/news-features/department/enso-blog

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