Karnataka is heading into another spell of widespread rain, with the India Meteorological Department warning of heavy to very heavy showers across different parts of the state over the coming days. The coastal belt, North Interior Karnataka and South Interior Karnataka are all expected to receive significant rainfall.
The latest IMD forecast indicates that rainfall activity will remain strong through September 24, with coastal Karnataka facing very heavy rain on September 23 and extremely heavy rain on September 24. North Interior Karnataka is also expected to receive very heavy rain on September 23, while South Interior Karnataka has a forecast for very heavy rain on September 23 and September 24.
The change in weather comes despite Karnataka recording a substantial rainfall deficit during September. According to a report citing Karnataka State Natural Disaster Monitoring Centre data, the state has recorded a 67 percent rainfall deficit during the month so far. The reported figures show that the state received around 35 mm of rain against a normal September rainfall of about 107 mm during the period considered.
The rainfall pattern has been uneven throughout the monsoon season. June recorded a reported 42 percent deficit, while July and August also remained below their respective normal rainfall levels. The September deficit has therefore emerged as a particular concern because the month normally contributes a significant amount of rainfall to the states water resources.
The latest weather system could bring some relief to areas that have experienced prolonged rainfall shortages, although a few days of heavy rain cannot automatically reverse the seasonal deficit. The impact will also depend on where the rain falls and how much of it reaches agricultural areas and reservoirs.
Coastal Karnataka is expected to experience the strongest spell. The IMD warning indicates very heavy rainfall on September 23 and extremely heavy rainfall on September 24, along with the possibility of thunderstorms and strong winds during the period.
North Interior Karnataka is also likely to see a significant increase in rainfall. The IMD has forecast very heavy rain for the region on September 23 after heavy rain and thunderstorms on September 22.
South Interior Karnataka is not expected to remain outside the weather system. The region has a forecast for very heavy rainfall on September 23 and September 24, while heavy rain and thunderstorms are expected during the earlier part of the period.
Bengaluru is expected to see a comparatively less intense spell than the coastal districts. The IMD city forecast indicates cloudy conditions with rain or thundershowers and strong gusty winds, while the September 23 and September 24 outlook includes cloudy weather with spells of light rain.
The weather could therefore remain unsettled in Bengaluru even if the city does not receive the same intensity of rainfall expected along the coast. Residents may see periods of rain rather than continuous heavy showers, with thunderstorms possible during the forecast period.
The rainfall situation is also being closely watched because of its connection with reservoir storage. Water levels in southern Karnataka reservoirs have been lower than they were during the same period last year, according to reports. KRS has been under pressure as water releases continue, while several reservoirs in North Karnataka have maintained comparatively stronger storage levels.
Recent reservoir data also shows that Almatti remains relatively well supplied compared with several reservoirs in the southern part of the state. The reservoir was reported at more than 115 TMC around September 21, while its total capacity is about 123 TMC.
The expected rain may improve inflows into some reservoirs, particularly in areas that receive sustained rainfall. However, the effect on storage will depend on rainfall intensity, catchment conditions, inflows and water releases.
For farmers, the coming rainfall could bring mixed effects. Areas that have received inadequate rain may benefit from additional moisture, but very heavy rain over a short period can also create problems for crops, roads and low lying areas.
People living in coastal and hilly parts of Karnataka may need to remain alert as rainfall becomes stronger. Local authorities can issue area specific instructions depending on conditions on the ground, particularly where heavy rain affects roads, drainage or river levels.
The weather outlook also means that conditions can change quickly. IMD forecasts are updated as new observations become available, so residents should check the latest district level warnings before making plans during the period of intense rainfall.
For now, the main focus remains on the approaching spell of rain and its possible effect on different parts of Karnataka. While the rainfall could help areas facing a seasonal shortage, the intensity of the showers means that local disruptions are also possible.
