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Rain knocks Grayson County almost entirely out of extreme drought on this week's federal map

Extreme drought covered nearly three-quarters of the county a week ago. The U.S. Drought Monitor map released Thursday shows it on less than 1%, though all of the county is still in drought.

Briar Iverson

October 8, 20262 min read

Rain relief - illustration, Jake Team LLC

Last week's soaking rain shows up clearly on the newest national drought map for Grayson County.

The latest U.S. Drought Monitor map, which reflects conditions through Tuesday, Oct. 6, puts just 0.73% of the county in extreme drought. A week earlier, 72.49% of the county carried that rating, and 1.36% was in exceptional drought, the most severe level. Exceptional drought is now gone from the county.

The improvement is real but partial. All of Grayson County is still classified as being in at least moderate drought, and 72.45% remains in severe drought or worse, according to the county statistics the Drought Monitor publishes with each map. The week before, every acre was at least in severe drought.

How fast it got bad

The dry spell came on quickly. At the end of July, the Drought Monitor showed no dryness or drought anywhere in the county. By mid-August, about 82% was in moderate drought. Severe drought arrived in late August, and extreme drought covered about 35% of the county by early September and nearly 72.5% from mid-September on.

What changed this week

The map's weekly summary says rainfall of several inches, in some places for the second week in a row, fell in a band from central Texas through much of the Red River Valley into central Oklahoma, and that improvements were far more common than declines across Texas and Oklahoma.

It notes that Dallas recorded 4 inches of rain from Sept. 30 through the first week of October, including 3.47 inches on Oct. 1, after only 0.01 inch from July 16 through Sept. 29.

Neighboring counties improved too, by the Drought Monitor's numbers:

  • Cooke County: severe drought now covers 27.5% of the county, down from 100%, and extreme drought is gone.
  • Fannin County: extreme drought dropped from 100% of the county to about 27%, and exceptional drought cleared.
  • Collin County: extreme drought fell from about 91% to about 15%, and exceptional drought cleared.

What's ahead

The summary's outlook calls for above-normal temperatures across much of the central and southern Plains through Oct. 12, with highs averaging more than 10 degrees above normal from north-central Texas through most of Oklahoma, and little or no rain expected in many drought areas of the Plains.

For Oct. 13 through 17, it says the best odds for unusually heavy rain extend across Texas and the Red River Valley.

Sources

droughtmonitor.unl.edu

usdmdataservices.unl.edu

droughtmonitor.unl.edu

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Briar Iverson

Briar Iverson covers weather, storms, and seasonal life around Denison.

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