Cyclone Evacuation Sequence Under Shelter and Tide Constraints
At 0600 on 12 June the India Meteorological Department upgrades a deep depression in the Arabian Sea to a severe cyclonic storm, expected to make landfall near Porbandar in 34 hours with winds of 110-120 km/h and a storm surge of 2.5 m. You are the Sub-Divisional Magistrate of a coastal taluka with nine villages in the inundation zone and 4,200 residents. Of five cyclone shelters, two are usable; one of the usable ones already holds 260 Odia-speaking migrant labourers from a salt pan; the third has a damaged roof; the fourth lies inside the projected surge line. Three villages can be reached by vehicle only at low tide: 1430 today and 0300 tomorrow. The taluka has six government buses, two JCBs and no ambulance after 1800 because the driver has not reported for two days. Livestock number about 3,100 head. The local MLA insists evacuation begin with the largest village in his constituency, which is also the farthest from any shelter.
1. Set out the sequence in which you will evacuate, and justify it in terms of the constraints given.
Read the worked answer
The order should follow hazard timing, then vulnerability, then the access window - not size or political weight.
- The three tide-locked villages, on the 1430 tide. Missing this window leaves only 0300, roughly two hours before landfall, which is too late for 4,200 people and 3,100 animals. The tide, not the storm, sets the clock.
- The village inside the surge line. A 2.5 m surge is the main killer in a cyclone of this intensity; wind damage is survivable in a pucca house, inundation is not.
- The salt-pan workers. They are non-local, without kin networks or local guarantors, and least likely to self-evacuate.
- The remaining villages by distance from a usable shelter.
Buses should carry people only on the 1430 run and return for livestock and belongings at 0300 only if people are cleared. Two usable shelters cannot hold 4,200; identify pucca buildings on high ground for the overflow and say so on file. Because ambulance cover ends at 1800, move pregnant women, the disabled and the elderly first, from a named list prepared by the taluka health officer. Both JCBs go to the two culverts on the tide-locked route, cleared before 1300.
2. How will you deal with the MLA's demand and with the migrant labourers who may refuse to move?
Read the worked answer
Handle the MLA in writing, not in a confrontation. Reply on file that the sequence is fixed by tide timings and the surge map, that his village falls in the 0300 window, and that moving it forward would strand three villages with no second access. Give him a defined role - shelter volunteer coordination or public address in Gujarati - so that his standing is used rather than challenged. Record the demand and the reply, because the file is the defence at the post-event review.
For the salt-pan workers, the obstacle is not language alone but fear of losing a day's wage and the absence of any local guarantor. Send an officer with an Odia speaker, a labour department official and a woman official; enter all 260 names on the shelter register; keep families together. If some still refuse, record the refusal in writing with witnesses. Where the surge risk is extreme, use the district magistrate's statutory evacuation powers, with police present but no force against persons. Non-local status is a reason to prioritise them, never to deprioritise them - that is exactly what the vulnerability criterion means.
3. What will you record and review, and why does that record matter after the event?
Read the worked answer
Maintain a contemporaneous decision log: each order with its time, the IMD bulletin number and surge map it rests on, the tide windows, the bus and JCB allocation by vehicle number, shelter-wise occupancy counts, the names of those who refused evacuation, and a one-line reason every time the sequence departs from the standard rule. Photograph shelter readiness, including the damaged roof.
After landfall, order a joint damage assessment by two officers with geo-tagged photographs, countersigned by the sarpanch, because relief and compensation files are audited later by the Accountant General and the State Disaster Management Authority.
Within 21 days hold a hot wash and file a report that separates hazard failure from administrative failure. The absent ambulance driver and the two unserviceable shelters are administrative failures; the district plan must therefore carry a budget line for shelter repair and a standby driver roster. Report the gap between shelter capacity and population, since that number drives future funding rather than the narrative of the response.