A localized thunderstorm brought a bit of relief from July heat and dryness Saturday, delivering half an inch or more of rain south of I-80 and about 0.20 to 0.30 inches north of I-80.
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KIMBALL – A localized thunderstorm brought a bit of relief from July heat and dryness Saturday, delivering half an inch or more of rain south of I-80 and about 0.20 to 0.30 inches north of I-80.
Conditions remained quite sunny and hot over the last week with the mercury topping 100 in many locations across the tri-state region and running solidly into the 90’s elsewhere.
Most locations across the Panhandle received at least some rain over the last week. Quantities were somewhat on the low side but the rain was still beneficial to rangeland, pasture, and dryland crops.
Across the region, summer rainfall has been very short in June and July. Kimball has received an average of 5.22 inches during those two months over the last 123 years. Rainfall this year in June and July totaled just 1.52 inches.
Fortunately, heavy rain and snow in May, totalling 4.6 inches, allowed surplus soil moisture to accumulate. This allowed good cool season grass production despite a dearth of rain, and the recent rainfall arrived in time to boost warm season grass production.
Regional Forecast and Conditions
As of Tuesday, July 25, sunrise temperature was 70 degrees under partly cloudy skies. A slow moving weather front was beginning to pass, promising widespread thunderstorms in the afternoon and evening and a high temperature of 94 degrees. Wednesday-Friday daytime temperatures were expected to be slightly cooler, with highs climbing only into the mid-80’s, and an increased chance of widespread thunderstorms across the region. Saturday-Wednesday daily high temperatures were once again forecast to reach into the mid- to upper-80’s, with overnight lows falling into the upper 50’s.
The coming week is expected to generate widespread afternoon and evening thunderstorms with areas of locally heavy rainfall possible. Skies are expected to be sunny to partly cloudy.
Air temperatures warmed across the region last week. At Kimball the July 18-24 daytime high averaged 93.57 degrees, about 5 degrees warmer than the previous week.
The weekly high temperature was 100 degrees on July 19. Overnight lows averaged 61.42 degrees, about 4 degrees warmer than the previous week. The weekly low temperature was 57 degrees on July 23. The weekly mean temperature was 77.5 degrees, about 5 degrees warmer than the previous week, and nearly 6 degrees warmer than the July average of 71.8. The long term average high and low temperatures at Kimball for July are 87.4 and 56.1 degrees, respectively.
Precipitation was reported at 12 of 13 Panhandle stations over the July 18-24 period, ranging from 0.02 at Harrisburg, Sidney 0.9 N and Sidney Municipal to 1.83 inches at Gordon. Dalton reported zero precipitation. Panhandle precipitation averaged 0.34 inches compared to 0.14 inches last week.
Panhandle soil temperatures ranged from 5 degrees cooler to 5 degrees warmer over the July 18-24 period: (this week/last week/change): Alliance 81.0/79.1 (+1.9) degrees; Gordon 78.7/82.6 (-3.9) degrees; Mitchell 82.9/87.9 (-5.0) degrees; Scottsbluff 82.1/81.0 (+0.9); and Sidney 86.5/81.5 (+5.0) degrees.
Winds near Kimball averaged south-southeasterly and occasionally quite gusty over the July 18-24 period. Gusts for the week averaged 29.85 mph. High gust for the week was 48 mph on July 22.
July 28 Weather Almanac
Last year – July 28, 2016: Daily high temperature 85 degrees, overnight low 57 degrees, average temperature 71 degrees. Precipitation 0.13 inches, snowfall zero inches, snow depth zero inches.
The warmest July 28 on record was 105 degrees in 1933. The coolest high temperature was 59 degrees in 2013. The coldest overnight low was 46 degrees in 1993. The warmest overnight low was 65 degrees in 1951. Since 1893 the high temperature for the date has averaged 86 degrees, the overnight low 57 degrees, the daily average 71.4 degrees, precipitation has averaged 0.10 inches, snowfall zero inches, snow depth zero inches.
The highest precipitation total was 2.10 inches in 2007.
U.S. Drought Monitor
The High Plains: Locally heavy rains fell in southern parts of the High Plains, with more than inches reported at several stations in southeast Colorado and southern Nebraska. A few stations in the Dakotas and Kansas received an inch or more of rain this week, but the showers and thunderstorms were spotty and amounts varied significantly. Most stations in the region were drier than normal this week with many receiving a tenth of an inch of rain, if any.
With daily temperatures exceeding 90 degrees F, the seven-day average maximum temperature was above 90 in a band from Montana to Kansas. The excessive heat increased evapotranspiration, as reflected in the extreme ESI and EDDI values, and further dried soils which were already parched.
According to July 17 USDA reports, topsoil and subsoil moisture was short to very short across 88/80 percent (topsoil/subsoil) of Montana, 85/79 percent of South Dakota, 65/58 percent of North Dakota, 65/57 percent of Nebraska, and 62/58 percent of Wyoming.
The heat and dryness have ravaged crops, with 61 percent of the spring wheat crop in poor to very poor condition in Montana and 40 percent in North Dakota. In South Dakota, 74 percent of the spring wheat was in poor to very poor condition, 38 percent of the corn crop, 33 percent of soybeans, and 45 percent of sorghum.
The pasture and rangeland statistics (in poor to very poor condition) were 74 percent for North Dakota, 68 percent for South Dakota, 58 percent for Montana, and 26 percent for Nebraska. As noted by the North Dakota State Climatologist, the spotty rains might have been enough to green-up the vegetation, but not enough to increase the vegetative volume.
Reports from the field include many reports of extensive drop damage, livestock water holes drying up, and cattle losing weight due to poor or nonexistent grazing land. The South Dakota State Climatologist reported that corn is in tasseling stage now; under drought stress, this can lead to an 8 percent yield loss per day, which is the highest rate of yield loss of any crop stage.
Nebraska
Temperatures averaged four to eight degrees above normal for the week ending July 23 with measureable rainfall reported in northern and southeastern portions of the state.
Topsoil moisture supplies rated 31 percent very short, 40 short, 29 adequate, and 0 surplus. Subsoil moisture supplies rated 24 percent very short, 42 short, 34 adequate, and 0 surplus.
Winter wheat harvest was wrapping up for the region. There were 6.4 days suitable for fieldwork.
Corn condition rated 5 percent very poor, 10 poor, 24 fair, 49 good, and 12 excellent. Corn silking was 76 percent, near the 78 percent reported at the same time last year and the five-year average of 74 percent. Dough was 9 percent, near 11 last year and 12 average.
Soybean condition rated 5 percent very poor, 10 poor, 26 fair, 53 good, and 6 excellent. Soybeans blooming was 79 percent, ahead of 72 percent last year, and near the 75 percent average. Setting pods was 26 percent, ahead of 16 last year, and equal to average.
Winter wheat harvested was 93 percent, near 90 last year, and ahead of 77 average.
Sorghum condition rated 4 percent very poor, 5 poor, 28 fair, 48 good, and 15 excellent. Sorghum headed was 10 percent, behind 22 last year and 23 average.
Oats condition rated 2 percent very poor, 3 poor, 37 fair, 50 good, and 8 excellent. Oats mature was 96 percent. Harvested was 76 percent, ahead of 63 both last year and average.
Alfalfa condition rated 6 percent very poor, 15 poor, 33 fair, 38 good, and 8 excellent. Alfalfa second cutting was 96 percent complete, ahead of 90 last year and 83 average. Third cutting was 22 percent, near 19 last year.
Dry edible beans condition rated 5 percent very poor, 12 poor, 25 fair, 41 good, and 17 excellent. Dry edible beans blooming was 58 percent, behind 74 last year, but ahead of 48 average. Setting pods was 12 percent.
Pasture and range conditions rated 14 percent very poor, 20 poor, 39 fair, 24 good, and 3 excellent.
Stock water supplies rated 6 percent very short, 13 short, 81 adequate, and 0 surplus.
Wyoming
Wyoming experienced warmer than normal temperatures for the week. All of the 34 stations reported at or above average temperatures for the week with the high temperature of 105 degrees recorded at Torrington and a low of 37 degrees at Lake Yellowstone.
Four stations reported no precipitation and Sundance had the most precipitation with 1.24 inches. Twenty-eight of the 34 stations received less than normal precipitation.
A reporter from Northwest Wyoming indicted that the spring rains brought on good grass which is now drying out, bringing on fire
danger concerns.
A reporter from North Central Wyoming noted that they have had a hot weather pattern with over 90 degrees, wind, and no measurable rain. They also indicated that water supplies are becoming short and farmers are preparing for harvest.
A reporter from Western Wyoming stated that it has been hot and dry with some thunderstorm activity but not much moisture.
A reporter from South Central Wyoming reported continued hot and dry conditions with pastures drying up. They also indicated that hay harvest is in full swing with production below average. Another reporter from South Central Wyoming noted that water supplies are drying up and producers are pulling livestock off summer pastures early due to poor grass nutritional value and/or a lack of grass.
A reporter from Southeast Wyoming indicated that there has been some rain, but most areas received little moisture and hot, dry conditions persist.
Stock water supplies across Wyoming were rated 6 percent very short, 15 percent short, and 79 percent adequate.