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: 07 (1.VI - 31.VII)

In the seventh reporting period, i.e. from 1 June to 31 July 2010, we have a threat of agricultural drought conditions in Poland. The values of climatic water balance (CWB), on the basis of which the risk assessment of drought is calculated were negative in most Polish areas.

The threat of drought occurs in 117 local districts, representing 3.8% of Polish local districts and covers 0.7% of the country. These are the local districts in the following voivodeships: Lubuskie (54 local districts), Zachodniopomorskie (43 local districts) and Wielkopolskie (20 local districts). Drought risk occurred for the following crops: shrubs, fruit, legumes, hops, tobacco, and strawberries grown in Ist category soils. They are very light soils, and are very susceptible to drought, a granulometric group: loose sand, loose sand, dusty, sand, and loamy sand, weak little dusty clay.

The temperature in June in the eastern parts of Poland, Malopolskie, and Wielkopolskie was higher than the long-term average by over 1°C, in the other parts of the country it was close to the long-term average. This year's July was very warm throughout the country. The highest temperatures (above 21°C) occurred in central Poland. In other areas of the country, the air temperature was also very high and was above 19°C.

June experienced very high precipitation in the south-eastern parts of the country, and in many places it exceeding 150 mm and 200 mm. In the north-eastern part of the country, precipitation was normal and ranged from 60 to 80 mm, while in the north of the country it was from 20 to 40 mm, i.e. about 50% below normal. Low precipitation from 5 to 20 mm (10 ÷ 30 % long-term average) was found in the west of the country, while the lowest precipitation, which was from 3 to 10% of norm occurred in Lubuskie.

In the first ten days of July, Poland was diverse in terms of precipitation. In the east and south-eastern parts of the country, precipitation exceeded 50 mm, whereas in the west it ranged from 10 to 20 mm. In contrast, the lowest precipitation, amounting to only a few mm, was found in central Poland, north-eastern and southern in the following voivodeships: Wielkopolskie, Mazowieckie, Dolnoslaskie, Opolskie, Slaskie, Kujawsko-Pomorskie, Warminsko-Mazurskie and in the north-western parts of Lubelskie.

In the second ten days of July was also very diverse in terms of precipitation, which ranged from 100 to 130 mm in Kotlina Klodzka, and 40 to 60 mm in the western parts of Dolnoslaskie voivodeship and Podlasie region, while very low precipitation (2 ÷ 15 mm) was measured in the Zachodniopomorskie and in the northern part of the Wielkopolskie and Lubelskie voivodeships. In other parts of the country were areas with low or high precipitation storm origin.

The third ten days of July was also very diverse in terms of precipitation, ranging from very heavy (above 100 mm) in the south of the country and a bit lower (30-100 mm) in the remaining area.

CWB values were negative for most of the country except for the southern Polish regions. However, in Poland an increase in the value of CWB was calculated. The average CWB increase as compared with sixth reporting period was 30 mm, while in the north and southern parts of the country an increase of over 80 mm was recorded.

Poland is still very diverse in terms of the CWB value. The lowest values of CWB occur in the northern part of the Lubuskie, in the southern part of Zachodniopomorskie and in the centre of the Wielkopolska voivodeship (-200 ÷ -219 mm).

The high value of CWB (-50 mm) were quoted in the southern parts of the Dolnoslaskie, Opolskie, Slaskie, Małopolskie and Podkarpackie. The highest values of CWB (over 100 mm) occurred in the Podkarpackie, Dolnoslaskie, in areas where high precipitation took place in July.