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ESTONIAN ENVIRONMENTAL REVIEW 2009

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APPENDIX<br />

The most hazardous meteorological phenomena and extreme meteorological and hydrological readings<br />

in Estonia, 2005–2008. Source: EMHI. Authors: Ain Kallis, Külli Loodla, Tiina Tammets, Lidia Klaus,<br />

Olga Kovalenko, Ilona Vahter.<br />

year month, day place event indicator<br />

2005<br />

2006<br />

9-11 January<br />

January<br />

May<br />

June<br />

Western and Northern<br />

Estonia<br />

storm<br />

Winds gusts up to 38 m/s on<br />

islands; 31 m/s on mainland;<br />

record sea and river water level rise<br />

Kihnu wind gusts maximum wind speed 38 m/s<br />

Pärnu<br />

Narva-Jõesuu<br />

Tallinn<br />

Ristna<br />

Rohuküla<br />

Tartu<br />

Tartu<br />

Jõhvi<br />

Pärnu<br />

rise in sea water level<br />

excessive<br />

precipitation<br />

high flow rate in<br />

Emajõgi River caused<br />

by precipitation<br />

excessive<br />

precipitation<br />

water level 275 cm above normal<br />

194 cm above normal<br />

152 cm above normal<br />

176 cm above normal<br />

120 cm above normal<br />

86 mm of precipitation<br />

(296% of normal)<br />

Flow rate 150 m 3 /s<br />

98 mm of precipitation<br />

(238% of normal)<br />

100 mm of precipitation<br />

(200% of normal)<br />

Tõravere high UV index 7.7 (over 7 is high)<br />

September Hiiumaa lack of precipitation<br />

year Tõravere sunny weather<br />

18 January –<br />

March<br />

Estonia<br />

long period of lower<br />

than normal air<br />

temperature<br />

February, March Võru frozen soil<br />

3 mm of precipitation<br />

(5% of normal)<br />

1817 hours of sunny weather<br />

(ranks 2nd in time series)<br />

average air temperature in<br />

February -7.8 °C (normal: -5.7 °C);<br />

March -4.9 °C (normal: -2.1°C)<br />

to a depth of 99 cm by the end of<br />

February<br />

April Estonia occasional drought precipitation 44% of normal<br />

June<br />

Estonia<br />

nights with frost<br />

temperature at the height of<br />

2 cm: -2.3 °C (Jõgeva)<br />

islands drought precipitation 10% of normal<br />

Tõravere UV index 8.3 (over 7 is high)<br />

July Türi, Virtsu drought<br />

summer Estonia warm and dry<br />

April - September Lake Peipus low water level<br />

3 mm of precipitation<br />

(3% of normal)<br />

fall in the level of water in rivers,<br />

rates of flow up to 60% lower than<br />

the long-term average<br />

monthly average water levels<br />

63-76 cm lower than long-term<br />

average<br />

180

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