Presentation by CWC on “Flood Forecasting and Warning

Report
Annual Conference
of
Relief Commissioners/Secretaries of DM of States
to
review preparedness for SW Monsoon
27th May 2014 at Vigyan Bhawan, New Delhi
Flood Forecasting and Warning Mechanism
V D Roy
Director(FFM)
Ph 011-26102836, [email protected]
1
Flood Forecasting Activities of CWC
•
CWC declared
Management.
as
•
Provides Flood Forecasting services based on hydrometeorological data from its network, reservoir release
data received from project authorities, QPF from IMD (in
real-time domain) First FF site- 1958 –Delhi
•
Present network- 175 (147+28)
•
20 divisions
•
9 Major River Basins
–
71 sub basins
–
17 states/UTs
line
department
Central Water Commission
for
2
Flood
CWC FF Services Set-up
CWC site
BS, FFS
WL, RF, Q
Civil
Authorities
& others
Ministries/
Deptt
CFCR
Summary
Compilation
DFCR
FF
Formulation
NDM
IOC
FMO
RF, WF,
QPF
Media
FF and Warning Present System –
schematic Diagram
WEATHER FORECASTS
RIVER STAGE & RIVER STAGE &
DISCHARGE AT DISCHARGE AT
BASE STATION FORECASTING STATIONS
REGIONAL OFFICES
OF I.M.D.
F.M.O OF I.M.D
C.E., S.E.
PRESS RADIO
P & T DOORDARSHAN
POLICE FLOOD
COMMITTEE
REGIONAL OFFICES
OF I.M.D.
F.M. O. OF I.M.D
FLOOD FORECASTING
CENTRES
& CONTROL ROOMS
FORMULATION OF
FORECAST
STATE GOVT.
CONTROL ROOM
RAINFALL
MINISTRY OF WR
CWC HQ
CIVIL AUTHORITIES
NDMA, NDM
ENGG. AUTHORITIES
DEFENCE
INDUSTRIES
RAILWAYS
Flood Forecasting Network of
CWC – State wise FF Stations
6
Flood Forecasting in CWC
•Data Collection : Manually, Sensors
•Transmission: Wireless, Telephone, Mobiles, DRT of
INSAT, Vsat
•Forecast Formulation:
•Statistical
Correlations using gauge to gauge, Gauge discharge data - Multiple coaxial correlations using gauge,
rainfall, Antecedent Precipitation Index (API) data
•Mathematical Models like MIKE-II - Rainfall Runoff module,
Hydrodynamic module, Flood Forecast module
•Forecast Dissemination
• Email, SMS, Website (http://180.171.92.80/ffs)
• civil/ engineering authorities of concerned
•
States, defence,
railways/ highways authorities, industrial and other important
establishments located in the flood prone areas
Media, Press
Forecast Frequency

Major rivers (Travel time >24 hours)
• Forecasts are being formulated based on 0800 hrs/ 0900 hrs
• water level data and forecst issued once in a day at 1000 hrs
with advance warning time from 24 hrs to 36 hrs

Medium rivers (Travel time 12-24 hours)
• Forecasts are being formulated based on 0600 hrs and 1800
•

hrs
water level data and forecast issued twice in a day at 0700
hrs and 1900 hrs with advance warning time from 12 hrs to
24 hrs
Flashy rivers (Travel time < 12 hours)
• Forecasts are being formulated based on any hr
• water level data and forecast issued multiple
times (more
than twice) in a day with advance warning time less than 12
hrs
8
Flood Situation during 2013
• Severe flooding observed at many places
• Unprecedented Flooding at two stations-
Mawi(Yamuna in
UP/Haryana) & Bhagalpur (Ganga in Bihar)
• High
Flooding
at
20
Stations-Brahmaputra(Assam),
Yamuna(DL), Ganga(UK, UP), Subarnaekha & Burhabalang(Odisha),
Ghagha(UP & BH), Rapti(UP), Wardha(MH), Kosi(BH)
• Total 7060 forecasts were issued
• Flood Forecasts activity was extended
beyond 15th
October 2013 to cover the floods due to “Phailin” in the
states of Odisha, West Bengal, Jharkhand and Bihar.
• Liaison with IMD & project authorities of concerned
State Governments until the threat of floods receded.
9
Flood Season 2014

Review of Warning and Danger Levels
 Review of Warning and Danger levels has been done at Srinagar


on river Alaknanda in Uttarakhand and is reduced from 539 and
540 m respectively to 535 and 536 m respectively.
Review of Warning and Danger Levels at Rosera on Burhi
Gandak in Bihar has also been taken up and is likely to be
finalised before the start of the ensuing flood season.
Review of Warning Level for Mathura (Prayag Ghat) on Yamuna
in Uttar Pradesh has been taken up with the concerned Revenue
authorities of UP and will be done after confirmation from
respective District / Revenue authorities.
 Flood Preparedness Period Extended
 1st May to 31st Dec
 New
Website for Forecast dissemination
 http://180.171.92.80/ffs
10
Notification
•
A notification No. 3/120/2013-FFM/2638-2717
dated 3rd December 2013 has already been
issued modifying the designated flood periods
for various basins to be followed from
monsoon 2014 onwards.
Sl.No. Basin
Modified Period
1.
Brahmaputra Basin
1st May to 31st October
2.
All other Basins upto Krishna 1st June to 31st October
Basin
Basins South of Krishna Basin 1st June to 31st December
(Pennar, Cauvery and Southern
Rivers)
3.
Central Water Commission
11
Notification
•
In case of floods in any basin beyond the above
designated flood period due to unexpected
rain/releases from dams or other reasons, the
flood forecasting activity shall be resumed in
affected
basins
by
the
concerned
organisation/division till the water level falls
below warning level/inflow falls below threshold
limit at all FF/ IF stations and necessary
bulletins shall be disseminated as usual to all
users as well as CFCR.
Central Water Commission
12
13
16
Field Chief Engineers of CWC
SN
Designation / Address
Tel / FAX
1
Shri R K Sinha, Chief Engineer (B&BBO), CWC, “Rebekka Ville”
Near Barik Point Temple Road, Lower Lachumiere, PORynjah(Umpling), Shillong – 793 001 (Meghalaya)
0364-2220568 Tel
0364-2220644 Fax
09485175605
2
Shri K S Jacob, Chief Engineer (KGBO) (Additional Charge), CWC,
Krishna Godavari Bhawan, 1st Floor, House No 11-4-648, AC
Guards, Hyderabad – 500 004 (Andhra Pradesh)
040-23308640 Tel
040-23308642 Fax
09449060644
3
Shri S K Sahu, Chief Engineer (LGBO), CWC,,177-B, Srikrishna
Puri, Patna-800 001 (Bihar)
0612-2541087 Tel
0612-2541865 Fax
09471006062
4
Shri A S P Sinha, Chief Engineer (M&ERO), CWC, Plot No.13 & 14,
Mahanadi Bhawan, Bhoi Nagar, Bhubaneswar – 751 002 (Orissa)
0674-2545573 Tel
0674-2545536 Tel
0674-2545537 Fax
09437005537
5
Shri Y K Handa, Chief Engineer (IBO), CWC,Block-IV, 6th Floor,
Kendriya Sadan, Sector 9-A, Chandigarh-160 017
0172-2741766 Tel
0172-2742465 Fax
09818353456
6
Shri S K Sahu, Chief Engineer (TBO), CWC,Sevoke Road, 2nd
Mile, Silliguri-734 401
0353-2543230 Tel
0353-2540262 Fax
09471006062
Field Chief Engineers of CWC
SN
Designation / Address
Tel / FAX
8
Shri M S Agrawal, Chief Engineer (YBO), CWC, Kalindi
Bhawan, B-5, Tara Crescent Road, Qutub Institutional Area,
New Delhi-110 016
011-26526865 Tel
011-26526857 Fax
09911229973
9
Shri Ram Saran, Chief Engineer (UGBO), CWC, Jahnavi
Sadan, 21/496, Indira Nagar, Lucknow-226 016 (Uttar
Pradesh)
0522-2715832 Tel
0522-2715834 Fax
08005489019
10
Shri Lalit Kumar, Chief Engineer (NBO), CWC, Block3, GFloor, Prayavas Bawan, Mother Teresa Marg, Arera Hills,
Bhopal – 462 011 (MP)
0755-2574513 Tel
0755-2550253 Fax
09425018835
11
Shri R K Suryavanshi, Chief Engineer (NTBO), CWC,
Narmada Tapi Bhawan, Room No.103, 1st Floor, Sector 10A,
Gandhinagar -382043(Gujarat)
079-23245427 Tel
079-23246115 Fax
09879200530
12
Shri J Chandrashekhar Iyer, Chief Engineer (C&SR), CWC,
Sangamam Gandhimanagar, Peelamedu, Coimbatore – 641
004 (Tamil Nadu)
0422-2512242 Tel
0422-2512243 Fax
07598029286
Appeal to States



Review of Danger levels and Warning levels
especially in respect of CWC FF stations where
situation warrants need to be done and
intimated to regional offices of CWC.
Flood Damage statistics may be updated
regularly
during
monsoon
followed
by
confirmation copy after the season is over for
record
Latest Mobile numbers of nodal officers for
receiving SMS in case of High & Unprecedented
Floods need to be supplied to CWC.
20
THANKS
Central Water Commission
21

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