Page 10 - Risk Management Bulletin April -June 2021
P. 10

RMAI BULLETIN APRIL TO JUNE 2021


                 very heavy damages. The farmers may have to start  assuming that Eye of the cyclone may pass over the
                 from scratch again. There would be a loss of income  above location. Though Eye region is quiet with no
                 for 10 years or so apart from debris removal cost  wind and rains, Eye wall surrounding the Eye has
                 and new plantation costs.                    highest wind speeds with gale winds and heaviest rain

             Y   Damage to crops depend on the time of cyclone  fall. Further ahead of the Eye the winds blow in one
                 hitting the land and damages can vary        direction while they are in exactly opposite direction
                                                              after the Eye passes over the structure. This results in
                 substantially, depending on whether it is sowing
                                                              twisting of the structure causing very heavy damages.
                 time or harvesting time.
             Storm Surge Damages                              Flood Damages
                                                              It is necessary to carry out a location study to ascertain
             Y   Storm Surge may shake the foundation of
                 buildings leading to total loss. Hotels and resorts  the damage potential. Past records of floods can help
                 are located on the sea fronts and may suffer heavy  in recommending suitable loss prevention measures
                                                              specific to the location and in preparing a Disaster
                 damages.
                                                              management plan. Critical machines/equipment need
             Y   Storm surges cover a large area and contaminate  special protection.
                 agricultural land. Desalination is required to be
                 done to make the land fit for agriculture and  Storm Surges
                 involves considerable cost & time.
                                                              The construction of the properties may be avoided. If

             Loss Prevention                                  unavoidable then special precaution must be taken
                                                              while constructing and also in operation. The past
             Wind Damages                                     experience shows that highest life losses occurred in
             Structures may be designed to stand wind forces  the storm surges.

             History of weather disturbances that hit the location

             Severe Cyclonic Storms and Higher Intensity of Tropical Cyclones

             This location falls under the Zone (IMD) West Bengal. Since 1891 to 2020 this location has faced the following
             Tropical Cyclonic Storms causing damages and disruption to the communities within 272 km range :

              Cyclone Name   Cyclone Life   Date of    Sustained  IMD   Saffir-  Munich   Rainfall  Storm Surge
                                Cycle       Landfall    Wind     Scale  Simpson  Rewind     (cm)     (m)
                                                       Speeds           Scale    Hazard
                                                       (km/hr)                    Zone
              WB November      24 to 27    26-11-1901  88 to 117  SCS    0       Zone 0   No Data  No Data
              1901            Nov. 1901                                                   Available  Available
              Contai 76        08 to 13    11-09-1976    130     VSCS    2       Zone 0    Heavy      3
                              Sep. 1976
              Aila           23 May to 26  25-05-2009    111     SCS     0       Zone 0     25 +    2 to 3
                              May 2009
              Amphan         16-05-2020 to  2020-05-20   185     VSCS    1       Zone 1    7 to 21    5
                              21-05-2020
              WB September     26 to 30    28-09-1937  88 to 117  SCS    0         -      No Data  No Data
              1937            Sep. 1937                                                   Available  Available
              WB July 1913   30 to 30 July  30-07-1913  88 to 117  SCS   0       Zone 0   No Data  No Data
                                1913                                                      Available  Available
              WB May 1932    23 to 25 May  24-05-1932  88 to 117  SCS    0       Zone 0   No Data  No Data
                                1932                                                      Available  Available



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