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ESTONIAN ENVIRONMENTAL REVIEW 2009

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year month, day place event indicator<br />

2008<br />

January<br />

19-Jan<br />

winter December<br />

2007, January and<br />

February 2008)<br />

March<br />

Estonia<br />

Ristna<br />

Estonia<br />

Estonia<br />

Narva-Jõesuu<br />

very warm<br />

record warmth<br />

very warm<br />

air temperature -0.5 °C<br />

(norm -6.3°C)<br />

absolute maximum air temperature<br />

+6.2 °C<br />

air temperature anomaly +0.5 °C<br />

(warmest)<br />

air temperature anomaly +3.6 °C<br />

absolute maximum air temperature<br />

on 31.March: +15.1°C<br />

April Estonia air temperature anomaly +3.3 °C<br />

May islands (Ristna) drought<br />

June<br />

July<br />

August<br />

end of August,<br />

beginning of<br />

September<br />

October<br />

Kunda<br />

Võru<br />

excessive<br />

precipitation<br />

downpours,<br />

thunderstorms<br />

4 mm of precipitation during<br />

the month (Ristna)<br />

176 mm of precipitation<br />

(300% of normal)<br />

70 mm of precipitation in 3.5 hours<br />

Tõravere UV index 8.6 (over 7 is high)<br />

Estonia<br />

Jõhvi<br />

SE Estonia<br />

Estonia<br />

Kuusiku<br />

excessive<br />

precipitation<br />

downpours, excessive<br />

precipitation<br />

high water level<br />

(flood surge)<br />

excessive<br />

precipitation<br />

23-24 November Estonia snowstorm<br />

23-25 November Estonia precipitation (snow)<br />

average amount of precipitation:<br />

177 mm (226% of normal)<br />

116 mm in 24 hours, amount of<br />

precipitation during the month:<br />

242.2 mm (normal: 86 mm)<br />

higher than spring flood levels<br />

average amount of precipitation:<br />

104 mm (154% of normal),<br />

maximum amount of precipitation<br />

during the month: 131.2 mm<br />

(normal: 78 mm)<br />

wind speed with blowing and<br />

drifting snow up to 30 m/s;<br />

damage<br />

snow depth on mainland up to<br />

30-50 cm; 8 cm on islands<br />

25 November Kuusiku snow record snow depth 56 cm<br />

December<br />

Estonia very warm air temperature anomaly +3.1 °C<br />

Estonia - rivers<br />

Tartu<br />

high water level<br />

(flood surge)<br />

high flow rate in River<br />

Emajõgi caused by<br />

precipitation<br />

higher than spring flood levels,<br />

new long-term highs for water<br />

level in December<br />

rate of flow 155 m 3 /s<br />

Lake Võrtsjärv water level about 1 m higher than average<br />

182

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