Texas and the broader Southern Plains have spent much of the past several winters under La Niña's influence, typically the driest possible outcome for the region. A strong El Niño flips that pattern, and the stakes for drought-stressed reservoirs and agriculture are real.
The Mechanism
El Niño's southward-shifted, strengthened subtropical jet stream tends to track storm systems directly across the southern tier of the U.S., from the Southwest through Texas and into the Gulf Coast and Southeast. That's the same jet stream shift driving California's wetter outlook, Texas sits further along the same storm track.
What History Shows
Past strong El Niño winters, 1997-98 and 2015-16 especially, brought above-normal rainfall and a more active severe weather season to Texas and Oklahoma, including an elevated risk of winter and early-spring severe thunderstorms along the boundary between cold Plains air and Gulf moisture. The flip side: more rain also means a higher risk of flooding in drought-hardened soils that don't absorb sudden heavy rainfall well, at least initially.
For drought monitoring specifically, use the U.S. Drought Monitor and NOAA's seasonal precipitation outlooks rather than a teleconnection-derived risk estimate. This site previously published a modelled drought panel and withdrew it in August 2026 after establishing that the figures were not what they were described as; the reasoning is worth reading before trusting any modelled drought number, including from other sources.
Rain Is Not the Same as Drought Relief
This is the distinction that gets lost most often in Texas coverage, and it matters more here than almost anywhere.
A wetter than normal winter improves the drought picture only if the water arrives in a form the landscape can absorb and store. Hardened, drought-stressed soils shed sudden heavy rainfall rather than taking it in, which produces runoff and flash flooding while leaving soil moisture at depth largely unchanged. Reservoir recovery depends on sustained inflow over weeks, not on a few high-intensity events.
So the useful question through the winter is not "did it rain" but "did it rain steadily enough, for long enough, to move soil moisture and reservoir levels." Those are the numbers that answer whether a wet El Niño winter actually broke the drought, and they lag the rainfall headlines by months.
The Severe Weather Side
The same subtropical jet that delivers the rain also sets up an active severe weather regime. A strengthened southern storm track repeatedly drives systems along the boundary between cold continental air to the north and Gulf moisture to the south, which is the classic configuration for winter and early-spring severe thunderstorms across Texas and Oklahoma.
Both 1997-98 and 2015-16 produced elevated cool-season severe weather in the region. That is worth stating plainly alongside the drought-relief framing, because the two arrive together and only one of them is good news.
Three Events Is Not a Sample
The same caution applies here as everywhere on this site. The regional pattern above is a composite of a small number of strong events, and averaging three winters does not produce a forecast. It describes three winters that were also shaped by everything else happening in those years.
When CPC favours above-normal precipitation for the southern tier, it is stating a probabilistic tilt across a three-month mean. A 40 percent chance of the wet tercile leaves 60 percent on the other two. The tilt is real and worth planning around. It is not a promise, and a single dry month inside a favourable seasonal outlook is not a failure of the forecast.
What to Watch
- Soil moisture and reservoir levels rather than rainfall totals, since those are what determine whether drought conditions actually ease.
- CPC's monthly seasonal outlook updates and whether the southern-tier precipitation tilt holds through autumn.
- Cool-season severe weather outlooks from December onward, the less-discussed half of this pattern.
- Whether the event verifies as very strong, since the regional signal historically firms up with intensity.
Regional outlooks elsewhere: California, which sits at the upstream end of the same storm track, and the Midwest and Great Lakes, where the pattern runs the other way. For where the event itself stands, see our current status piece.