HIGH TIDES

Generally Venice only has high water in Autumn and Winter and even then it is not every day that the streets are flooded. However when a higher than usual tide is expected in the city, sirens blare to warn the population so that they can prepare themselves. Maps as posted at the boat stops showing alternative pedestrian routes around the city that are equipped with special footbridges to avoid the high water and to reach the main parts of Venice.
 

   

Real time high tides Center (prevision)  


 

level of tide

% of Venice that is flooded
less than 80 cm. Normal tide
at 100 cm 4%
at 110 cm 12%
A emergency sound alert the Venetian
at 120 cm 35%
at 130 cm 70%
at 140 cm 90%

 

The causes of the tides are the following:
- astronomic: the attraction of the sun and the moon cause the regular rise and fall of the water: "6 hours rise and 6 hours fall". You therefore have two maximums and two minimums a day.
- meteorological: a strong south-east wind ("scirocco") may cause the tide to increase by as much as 1 meter.
- geographical: the seiche is a sort of long wave that runs through the whole of the Adriatic Sea with a period of approximately 22 hours.

 

SOME PICTURES

  
San Marco square....

 

  ...with the high water ...

 

 
Very bad bad whether ... all the Gondoliers are at home ... 

 

  You have to use the "passarele" to walk when this happen .....

 

 
Sometime it's hard to live in venice ...high water, rain and cold

 

  The only way to go inside the church ....

 

 

San Marco square view from the church.

 

The Clock Tower

 

Top high tide values in Venice during the period
from 1923 to October 31, 2008.

 
1. + 194 cm November 4, 1966
2. + 166 cm December 22, 1979
3. +158 cm February 1, 1986
4. +156 cm December 1, 2008
5. +151 cm November 12, 1951
6. +147 cm April 16, 1936
7. +147 cm November 16, 2002
8. +145 cm October 15, 1960
9. +144 cm November 3, 1968
10. +144 cm November 6, 2000
11. +142 cm December 8, 1992
12. +140 cm February 17, 1979

 

You can find more information here: Comune di Venezia

 

 

 

 

 

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