Saturday, December 3, 2022

Drier winter weather pattern expands drought in Texas

center pivots texas
Irrigation pivots in Burleson County sit idle at sunset — photo by Laura McKenzie/Texas A&M AgriLife Marketing & Communications

Conditions are drying around much of Texas, and forecasts call for winter weather to be warmer and drier than average.

Commodity producers in much of the state, including the High Plains, experienced a banner year in 2021 due to high commodity prices and above-average precipitation that started in May and delivered timely moisture throughout the growing season. But soil moisture levels are declining in parts of the state. And the 2022 growing season could hinge on winter weather replenishing topsoil and subsoils or another round of timely summer rains to save the day.

Drought conditions expand

Jourdan Bell, a Texas A&M AgriLife Extension Service agronomist in Amarillo, said drought conditions are expanding throughout the High Plains. The region has not received significant precipitation since September while above-average temperatures were exacerbating soil moisture level declines.

The U.S. Drought Monitor shows most of the High Plains, West Texas and East Texas are in extreme drought to abnormally dry. West Central, Central and Coastal parts of the state are not experiencing drought, according to the monitor.

A strong La Niña weather pattern is expected this winter, which often means less rainfall and warmer temperatures for the Southwest, including much of Texas.

“Soils are drying out and that is definitely a concern moving into winter and spring,” Bell said. “We continue to hear that weather conditions are expected to be warmer and drier than average, so limited soil moisture could be drive 2022 cropping decisions in water-limited regions.”

Winter weather typically dry For Texas plains

Bell said producers in the High Plains are making serious evaluations of input costs due to high fertilizer prices and pesticide shortages despite strong commodity prices. But much of the planting decisions will be based on precipitation received between now and planting and how well soil moisture indexes recover from drought winter conditions.

Dryland and limited irrigated producers will likely select crops that tolerate moderate drought conditions.

But winter is typically a dry period for the High Plains region, Bell said. Much of the restorative rainfall events historically occur during monsoon season in late summer through September.

The region does typically pick up some winter moisture from snowfall, Bell said. While snow represents important moisture and an insulator against extreme cold for winter crops like wheat and canola, the moisture from snow is only a fraction of rainfall’s liquid equivalent.

“A few inches of moisture are important when you are in a 16- to 24-inch rain zone like the Texas High Plains, but we are going to need good spring rains to help reduce the current rainfall deficit and improve the overall topsoil and subsoil moisture index,” she said.

Plan for the worst, hope for the best

Bell said producers are increasingly dependent on timely rains because regional groundwater continues to decline, resulting in lower irrigation well capacities. The ability to meet crop water demand directly impacts yield potential.

Timely in-season rains in the High Plains between May and September helped bridge the soil moisture deficit during the 2021 growing season, Bell said. The region received 10-12 inches of rainfall during the growing season, which effectively supplemented crop moisture requirements for producers with limited irrigation capacity.

The timely rains resulted in better-than-average yields for many regional corn, sorghum and cotton producers, she said. Better-than-expected yields amid higher prices at market made 2021 a good production year.

But Bell said producers should continue to plan for the worst and hope for the best when it comes to soil moisture availability. Competitive prices for more drought tolerant crops like cotton and sorghum will likely weigh into cropping decisions if moisture doesn’t improve soil moisture indexes.

“Generally, farmers have a positive, hopeful outlook when it comes to planting,” she said. “Last year many producers were reconsidering whether they would plant corn, but then rains came in May, so they planted hoping for more and they got it. Timely in-season rains and moderate temperatures led to very good corn yields. But we want to help producers minimize risk. While it worked out perfectly for many producers in 2021, there are years when it does not.”

Texas A&M AgriLife contributed this article.

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