Eleven inches of snow near Philipsburg, Montana, and 9.7 inches at Great Falls Airport anchored the week's biggest shift on the U.S. Drought Monitor — widespread western improvement set against worsening exceptional drought from southwestern Missouri to northern Louisiana.

A strong upper-level storm system tapped moisture from the remnants of Hurricane Rachel Oct. 10–12, delivering rain and early-season mountain snow across the northern Rockies and Southwest. The National Hurricane Center dissolved Rachel over the southwestern U.S. on Oct. 11, though its remnants kept producing heavy rain and gusty winds.

What does this change for growers? Western forage and winter wheat ground picked up measurable moisture, while Corn Belt and Delta producers watched soil reserves shrink further ahead of winter wheat emergence.

Where the map improved

• Northern New Mexico: extreme drought reduced.
• Utah: reductions in both severe and extreme drought.
• New Mexico, Colorado and Wyoming Rockies: localized severity cuts on short- and mid-term moisture gains.
• Western and north-central Montana: rain and mountain snow eased deficits.
• Western and northern Texas, including Panhandle areas near the New Mexico and Oklahoma borders: lingering benefits from prior precipitation reduced severity; north-central Texas near the Oklahoma border also improved.
• North Dakota: current and prior-week precipitation eased short- and mid-term deficits.

Despite the gains, significant drought persisted across the Great Basin, Southwest and northern Rockies, where longer-term precipitation deficits and soil moisture shortages limit recovery.

Where drought intensified

Temperatures ran 8 to 16 degrees Fahrenheit above normal across parts of the Plains and Midwest, peaking at 12 to 16 degrees above normal in Minnesota, Iowa and Missouri. Great Falls hit the lower 80s ahead of the storm, then fell into the upper 30s as it passed — a 40-plus degree swing the National Weather Service logged within days.

Most of the Midwest received less than 50% of normal precipitation, with widespread areas under 25% of normal. The result: worsening drought in Wisconsin and the Upper Peninsula of Michigan, and a broader deterioration band stretching from southern Illinois and Indiana through Missouri and Kentucky into the lower Mississippi Valley and Tennessee.

The sharpest degradations hit three states:

• Southwestern Missouri: exceptional drought introduced after prolonged hot, dry conditions and growing short- and mid-term moisture deficits.
• Arkansas and northern Louisiana: exceptional drought expanded.
• Eastern Kansas along the Missouri border: short-term conditions worsened.

This follows record-breaking September warmth — Texas, Oklahoma and Arkansas each logged their warmest September in 132 years of records, per data feeding the monitor.

How the monitor works

The U.S. Drought Monitor is jointly produced by the National Drought Mitigation Center at the University of Nebraska-Lincoln, the USDA and NOAA. It reflects reported conditions through the mapping week, not forecasts — treat the classifications as a snapshot checked against station data like Black Pine SNOTEL's 1.5 inches of snow-water equivalent and Barker Lakes SNOTEL's 0.8 inches.

What's ahead

The Weather Prediction Center's five-day quantitative precipitation forecast, covering Oct. 15–20, shows a broad precipitation shield from the Southwest and Southern Plains northeastward into the Midwest and Great Lakes. The heaviest totals — 2 to 5 inches widespread, locally over 5 — target central and eastern Texas, Oklahoma, Arkansas and Missouri, exactly where exceptional drought expanded this week.

An additional 1 to 3 inches is forecast for the central Plains, Midwest, Ohio Valley and Great Lakes. Much of the interior Southwest stays dry.

The Climate Prediction Center's 6- to 10-day outlook for Oct. 19–23 favors above-normal temperatures across the central and eastern U.S., with the strongest probabilities over the central Plains and Mississippi Valley — warmth that could raise evaporative demand and deepen drying wherever the forecast rain misses. Below-normal temperatures are favored along the West Coast and into the Great Basin and Southwest.