Do roku 2016 raport oznaczony numerem 1 był tworzony za okres od 1 kwietnia do 31 maja. Od roku 2017 analizy są wykonywane o dekadę wcześniej czyli 1 raport oznacza okres od 21 marca do 20 maja

Communication report regarding the incidences of drought conditions in Poland

Year: 2010; period: 08 (11.VI - 10.VIII)

In the eighth reporting period, i.e. from 11 June to 10 August 2010, in accordance with accepted principles of drought monitoring we have found no indication of a threat of drought in the area of Poland. This means that areas where in the 2010 growing season the drought risks have been identified and the findings of previous monitoring periods are up to date, the situation has not changed.

In the first ten days of August, the Polish territory was found to be diversified in terms of heat. Average air temperatures in the eastern parts of Poland exceeded 21°C and were significantly higher than the temperature recorded in the western and south-western parts of Poland, which did not exceed 19°C. Similar variations occurred in the ten-day period for total precipitation, where higher amounts of precipitations were recorded in the western and southern part of Poland, and in some places exceeding 100 mm, while in the central and eastern parts precipitation it did not exceed the amount of 20 mm in a large number of meteorological stations. In the eastern and western parts of Poland, the precipitation was in the form heavy downpours from storms, which determined the significant differences in total precipitation in a small area. In the south-western part of Poland, in an area where flooding had occurred, the amount in the ten-day period exceeded 240 mm of rainfall, which is about 30% of the annual total.

Spatial resolution and the value of CWB in the eighth reporting period are similar to report 5 i.e. on 10 July 2010. In the Lubuskie voivodeship, southern parts of Western and Central Poland CWB value were less than -100 mm, but did not exceed the critical value indicating the threat of drought. By contrast, in the southern, eastern, and northern voivodeships the CWB values were higher than -50 mm. The agrometeorological interpretation of such distribution is quite different from in the report from 10 July 2010. While in July, in areas where the CWB was at - 50 mm, the mean rated as beneficial agrometeorological conditions, the conditions currently in these areas should be interpreted as unfavourable. The areas where high amounts of precipitation had occurred, the ground as well as the crops are wet, which decreases the quality of yield and makes it difficult to carry out the harvest.