The National Oceanic and Atmospheric Administration (NOAA) has laid out its projections for the winter weather in 2024-2025, and if you're in Texas, expect to keep your winter coat in the closet a little longer. A report from NOAA indicates that Texas and other Southern states should prepare for warmer and drier conditions than typically experienced in the winter months. In Austin, there's a 50 to 60% probability of these climate trends. The altered patterns owe their shift to the anticipated positioning of the jet stream, a consequence of the El-Niño-Southern Oscillation (ENSO) phenomenon.
According to a statement obtained by KVUE, the expected northerly jet stream shift during the winter is largely driven by a developing La Niña, which is known to occur when cooler sea-surface temperatures present themselves in the equatorial Pacific. While this may typically bring increased moisture to the Pacific Northwest due to the northward push, Texas is set to experience the opposite with warmer and drier conditions.
Focusing on a broader scale, NOAA's Winter Outlook for the entire country suggests that while the South dries out, the North might want to invest in umbrellas. NOAA's Climate Prediction Center has forecasted that wetter-than-average conditions are likely for the northern tier of the U.S., especially around the Pacific Northwest and the Great Lakes region, courtesy of the same La Niña pattern. Conversely, the Southwest to the Southeast, Gulf Coast, and lower mid-Atlantic states are bracing to face drier-than-average conditions, according to NOAA's news release.
The implications of this forecast are significant for areas already grappling with drought. NOAA warns parts of the central and southern Plains could see their existing drought conditions persist or even exacerbate. "Unfortunately, after a brief period in the spring of 2024 with minimal drought conditions across the country, more than a quarter of the land mass in the continental U.S. is currently in at least a moderate drought,” said Brad Pugh, operational drought lead with NOAA’s Climate Prediction Center. Pugh also highlighted that the winter precipitation outlook does not bode well for widespread relief.
NOAA has been bolstering its forecasting capabilities, having reportedly invested $100 million into its high-performance computing system to enhance research on climatic predictions, as stated by the agency's assistant secretary of commerce for observation and prediction, Michael Morgan. Additionally, the Climate Prediction Center has introduced the operational Probabilistic Winter Storm Severity Index (WSSI-P) to better communicate the potential societal impacts of winter weather hazards. To aid local decision-making, NOAA is also slated to launch the Experimental Probabilistic Precipitation Portal, which will offer detailed forecast probabilities.
NOAA's seasonal outlooks are not just academic exercises; they serve as crucial planning tools to help communities prepare for what's to come. Resources like drought.gov and climate.gov are available to the public for better comprehension and preparation for weather and climate-related events. These services form part of NOAA's ongoing efforts to create a Weather- and Climate-Ready Nation by providing actionable forecasts and winter weather safety information.
