Tuesday, 14 June 2016

Latest USDA weather update for western and eastern FSU

Western FSU
Unsettled weather prevailed over central and northern portions of the region, while somewhat drier weather returned to primary southern wheat areas.

A persistent blocking high over northern Eurasia caused storms to drift and stall over Ukraine and Russia for a third consecutive week.

As a result, an additional 10 to 30 mm of rain was reported from central Ukraine into central and northern Russia, while moderate to heavy rainfall (20-80 mm) was observed in Russia’s North Caucasus District.

As a result, soil moisture remained adequate to abundant for reproductive to filling winter wheat as well as vegetative corn, soybeans, and sunflowers in Moldova, Ukraine, and Russia.

However, key Russian winter wheat areas of Rostov and Krasnodar Krai* in the southwestern Southern District were favourably drier (mostly less than 5 mm), with this week’s respite from recent wetness facilitating fieldwork and crop maturation.

Temperatures averaged 2 to 5°C below normal, which slowed crop development but also minimized heat concerns following a warm, locally hot start to the month.

(*The picture is from Stavropol last week, Stavropol neighbours Krasnodar Krai)

Eastern FSU
Beneficial rain returned to the region’s primary spring wheat areas, though early-season heat expanded northward out of South Asia. 

Following a much-drier-than-normal May, which enabled rapid spring wheat planting but also reduced soil moisture, moderate to heavy showers and thunderstorms (10-80 mm) across northern Kazakhstan and central Russia were timely for crop establishment. 

There were pockets of dry weather noted in Russia’s Siberia District, but most crop areas now have sufficient soil moisture for proper spring wheat development. 

Farther south, excessive heat expanded northward from southern Asia, with daytime readings topping 38°C (locally as high 43°C in Uzbekistan and 47°C in Turkmenistan) across much of the region’s southern tier. 

Some of this heat (32-34°C) expanded into northeastern Kazakhstan and the Siberia District. 

While the hot conditions caused high evapo-transpiration rates and increased irrigation requirements, spring wheat (north) and cotton (south) were not yet in the temperature-sensitive reproductive stages of development.