USDA: Warming in Early July Aids Canadian Crops

July 12, 2013 05:57 AM

USDA's Joint Ag Weather Facility has issued the following monthly global weather highlights:

  • UNITED STATES: Wet weather in the eastern one-third of the U.S. and across the nation’s northern tier maintained abundant to locally excessive moisture reserves for pastures and summer crops. In contrast, little or no rain fell from southern California to the central and southern Rockies. Although much of this region typically experiences dry weather during June, the lack of rain aggravated the effects of long-term drought. In addition, Southwestern heat and drought boosted irrigation demands, stressed rangeland, and hampered wildfire containment efforts. Between wet and dry regions, spotty showers affected the nation’s mid-section. Showers provided temporary relief to drought-stressed rangeland, pastures, and rain-fed summer crops on the central and southern High Plains, but failed to dent long-term precipitation deficits. Meanwhile, a subtle drying trend across eastern sections of the central and southern Plains, as well as parts of the mid-South, led to a gradual increase in crop and pasture stress by month’s end.

  • CANADA: In June, wetter-than-normal weather maintained adequate to locally excessive levels of moisture for Prairie spring grains and oilseeds, with severe localized flooding in sections of Alberta. A warming trend in early July aided crops delayed in development due to late planting and earlier periods of cool weather. Ontario and Quebec experienced localized problems with excessive wetness.

  • SOUTH AMERICA: In Argentina, extended periods of warmth and dryness in June supported rapid fieldwork, including harvesting of summer grains, oilseeds, and cotton as well as planting of winter grains. In contrast, unseasonable wetness continued in much of southern Brazil, maintaining abundant moisture for second-crop corn and wheat but hampering sugarcane harvesting and maturation of coffee.

  • EUROPE: Wetter-than-normal conditions across central and eastern Europe improved yield prospects for reproductive to filling oilseeds and small grains during June. In addition, the rain improved soil moisture for vegetative summer crops. In contrast, sunny skies promoted summer crop development in Italy and winter grain harvesting in Spain. Mostly dry weather also favored fieldwork and crop development in the United Kingdom. In southeastern Europe, early-month heat stressed reproductive corn and sunflowers, although heavy rain and cooler weather improved crop yield prospects by month’s end.

  • FSU-WESTERN: Highly variable conditions persisted across the region during June. Hot, mostly dry weather increased stress on reproductive summer crops and filling small grains in eastern Ukraine and southern Russia. In contrast, locally heavy showers across Belarus and western portions of Russia and Ukraine maintained favorable prospects for vegetative summer crops.

  • FSU-EASTERN: During June, dry weather reduced prospects for late vegetative to early reproductive spring wheat in northern Kazakhstan and southern Russia. Incursions of heat also increased crop stress in western portions of the region. Locally heavy showers provided supplemental moisture for irrigated cotton across the south.

  • MIDDLE EAST AND TURKEY: In Turkey, early-June rain gave way to drier weather by month’s end, promoting winter grain harvesting. However, increasingly hot weather in southeastern Turkey likely stressed irrigated corn and cotton.

  • SOUTH ASIA: The monsoon began an unprecedented three to four weeks earlier than normal across much of central and northern India, with rains covering most kharif crop areas by mid-June. The early start to the rainy season caused some planting delays, but was seen as highly favorable for crop prospects.

  • EASTERN ASIA: Conditions in June were generally mixed across China, with beneficially wet weather in the northeast and drier-than-normal conditions in central and southern areas. Cool, wet weather in much of the northeast benefited corn development as conditions improved in Liaoning and neighboring portions of Inner Mongolia. Meanwhile, heat stressed corn on the North China Plain and into the Yangtze Valley. Rice, soybeans, and cotton continued to fare well despite the heat, and benefited from good moisture supplies. Below-normal June rainfall prevailed across much of the Korean Peninsula, although seasonal moisture remained favorable on late-May and early-July heavy showers.

  • SOUTHEAST ASIA: Improvements in June rainfall boosted moisture reserves for rice in northern Thailand, while drier-than- normal weather occurred in northeastern Thailand. A dry second half of June in southern Vietnam benefited maturing summer rice, while occasionally wet weather (due in part to tropical cyclones) in the north slowed field preparations for winter rice transplanting. In the Philippines, periodic flooding occurred in parts of the northwest from two tropical cyclones, but crop damage was reportedly minimal. Otherwise, most regions received above-normal rainfall for the month. Unseasonably heavy showers continued in Java, Indonesia, during what is typically the dry season. The unwelcomed wet weather lowered rice and corn prospects due to an expectation of poor quality and the inability of growers to perform fieldwork.

  • AUSTRALIA: In June, intermittent rain and sunshine in South Australia, Victoria, and New South Wales created near-ideal conditions for initial winter crop development, triggering widespread sowing and promoting germination and emergence. In Western Australia, a combination of mostly sunny skies and generally adequate moisture supplies favored wheat, barley, and canola early in the month. Increasing dryness toward month’s end, however, began to slowly reduce topsoil moisture for vegetative crops.


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