Weakened Cyclone Murasu Leaves Lingering Rains in South India as North India Stays Dry

Even after weakening into a depression, the remnants of Cyclone Murasu will trigger heavy rain and gusty winds across southern states, while dry and calm weather prevails across northern India.

With the arrival of November, India is witnessing a striking contrast in atmospheric conditions across its geographic zones. While vast parts of southern India remain gripped by widespread rainfall, thunderous lightning, and high-velocity winds triggered by the remnants of Cyclone Murasu, northern regions continue to experience stable, dry, and undisturbed weather. According to the daily meteorological bulletin issued by the India Meteorological Department (IMD), the depression that formed following the weakening of Cyclone Murasu continues to destabilize the atmosphere over peninsular India. Consequently, on November 5, heavy rainfall is forecast across isolated pockets of Tamil Nadu, Puducherry, Karaikal, and South Interior Karnataka, accompanied by severe wind gusts reaching 40 to 50 km/h in Andhra Pradesh.

Remnants of Cyclone Murasu Over Andhra Pradesh and Telangana
The primary atmospheric driver behind the turbulent weather in southern India is a lingering cyclonic structure situated over the borders of Andhra Pradesh and Telangana. Meteorological observations recorded at 8:30 AM on November 4 showed that the remnant system of Cyclone Murasu was operating as a depression over eastern Telangana and adjoining coastal Andhra Pradesh. This weather formation was tracking slowly northward at roughly 6 km/h, situated approximately 10 km southwest of Khammam in Telangana. Forecasters anticipated that this system would degrade further within six hours into a well-marked low-pressure area.

Despite this continuous weakening, atmospheric instability will keep the weather turbulent across Andhra Pradesh on November 5. Portions of the state are slated to encounter vivid lightning activity alongside gusty surface winds clocking speeds of 40 to 50 km/h. Strong surface air currents remain a major operational alert. The Rayalaseema subdivision is also forecast to experience spells of thunderstorms and brisk winds between November 4 and November 8. In contrast, while Telangana had been placed under alerts for very heavy precipitation on November 4, the routine outlook for November 5 did not reiterate warnings of that severity for the state.

Intense Downpours Slated for Tamil Nadu and Karnataka
November 5 is set to be the most active weather day for the southern states. The IMD has highlighted isolated pockets in Tamil Nadu, Puducherry, and Karaikal for heavy downpours accompanied by frequent lightning and thunder. Neighboring Kerala and Mahe will also see scattered convective showers alongside thunderstorm activity. South Interior Karnataka faces a heavy rain warning, while Coastal Karnataka is anticipated to witness intermittent showers paired with lightning strikes. The sustained precipitation poses tangible threats of local waterlogging in low-lying depressions and disruptions to intra-city transit systems.

Meteorologists emphasize that the wet spell will extend far beyond November 5 across the peninsula. Tamil Nadu, Puducherry, and Karaikal are scheduled to experience successive wet episodes from November 4 to 6, followed by a second surge between November 9 and 10. In addition, isolated intense falls are projected on November 7 and 8 across these regions. Concurrently, Kerala, Mahe, Lakshadweep, Coastal Karnataka, South Interior Karnataka, and Rayalaseema will remain prone to widespread or isolated precipitation from November 4 through November 10. Residents across these southern belts must prepare for prolonged damp conditions spanning the entire week.

Thunderstorms in Coastal Karnataka and Odisha
Peripheral convective activity linked to the regional moisture field will also impact eastern and western coastal strips. Coastal Karnataka will endure frequent thunderstorm developments alongside localized spells of rain. On the eastern seaboard, Odisha is projected to witness scattered thunderstorms marked by lightning flashes and strong winds. The authorities advise vigilance in open fields and coastal expanses where sudden convective bursts could generate localized hazards.

Dry Conditions and Clear Skies Across Delhi-NCR
In sharp contrast to the turbulence gripping the south, Delhi and the National Capital Region (NCR) are experiencing calm and settled weather. The daily assessment indicates that the morning hours of November 5 may see shallow mist or light fog across the capital city and nearby satellite hubs. Nevertheless, skies are expected to turn predominantly clear as the day advances, allowing ample sunshine to break through. Morning commuters might encounter reduced visibility momentarily, but daytime travel will proceed without rain, gale-force winds, or thunderstorm hazards.

Thermal trends in Delhi-NCR are projected to remain remarkably steady over the coming week. The IMD notes that maximum temperatures are unlikely to undergo significant fluctuations over the next seven days. While residents will notice a gentle chill during the early morning and late night hours, bright daytime sunlight will ensure comfortable afternoons. The meteorological forecast makes no mention of cold wave warnings or severe temperature plunges for the capital territory during this interval.

Stable Outlook for Uttar Pradesh, Bihar, and Neighboring States
Atmospheric conditions across Uttar Pradesh on November 5 will remain uniformly benign. The IMD has highlighted an absence of any significant synoptic systems across northwest India throughout the entire week. In light of this, both western Uttar Pradesh and the eastern districts of Purvanchal can expect thoroughly dry weather. No alerts regarding thunderstorms, high winds, or heavy downpours have been issued for the state, ensuring smooth field operations for farmers and travelers alike.

Identical dry patterns are in place across Uttarakhand, Bihar, and Jharkhand on November 5, with no rainfall indicators present in the forecast models. The broader meteorological assessment explicitly rules out any notable weather activity across northwest, west, and northeast India for the remainder of the week, ensuring uninterrupted daily routines across the northern half of the country.

What this means for you
Lingering cyclonic conditions will cause rain-related disruptions across southern India, whereas northern states will enjoy pleasant and dry weather.

• Across South India: Heavy rainfall in Tamil Nadu, Puducherry, and South Interior Karnataka on November 5 could trigger waterlogging in low-lying pockets. Commuters and motorists should anticipate local transit delays and plan travel routes accordingly.
• In Andhra Pradesh and Rayalaseema: Gusty winds reaching 40 to 50 km/h along with lightning strikes pose outdoor hazards. Farmers and outdoor workers should seek sturdy shelter during sudden convective squalls.
• In Delhi and North India: Completely dry conditions will prevail across Delhi-NCR, Uttar Pradesh, Bihar, and Jharkhand with zero rain alerts. Early morning commuters may encounter shallow mist, but sunny afternoons will ensure normal daily operations.
• Extended Outlook: The wet phase across peninsular regions is projected to stretch in multiple pulses until November 10. Residents in prone coastal and interior belts should monitor routine municipal updates for water drainage management.

Why this happened
The persistent wet spell in southern India is driven by the remnants of Cyclone Murasu transitioning into a depression over the Telangana-Andhra border.

• Depression Movement: Cyclone Murasu decayed into a depression centered near Khammam in Telangana on November 4, advancing northward at 6 km/h. This system sustained deep moisture convergence and atmospheric instability across the peninsular landmass.
• Degradation to Low-Pressure: The system was forecast to weaken further within six hours into a well-marked low-pressure area. Even in a weakened state, such remnant vortexes continue to trigger convective bands, high winds, and heavy rainfall.
• Absence of Northern Systems: Northwest and northern India currently lack any active western disturbances or monsoon channels. This total absence of synoptic weather systems leaves skies clear and atmospheric conditions entirely dry across northern states.

Questions & Answers

1. Which regions face heavy rainfall alerts on November 5?
The IMD has forecast heavy rainfall in isolated parts of Tamil Nadu, Puducherry, Karaikal, and South Interior Karnataka.

2. What wind speeds are anticipated in Andhra Pradesh?
Andhra Pradesh is likely to experience thunderstorm activity accompanied by gusty winds ranging between 40 and 50 km/h.

3. Where was the remnant depression of Cyclone Murasu located?
On the morning of November 4, the depression was centered about 10 km southwest of Khammam in Telangana, moving north at 6 km/h.

4. How long will the rainy spell persist across southern India?
Wet conditions are expected to continue in multiple spells across Tamil Nadu, Puducherry, Karnataka, Kerala, and Rayalaseema through November 10.

5. What is the weather forecast for Delhi-NCR on November 5?
Delhi-NCR will see shallow mist or light fog during the early morning hours, followed by mostly clear skies and sunshine through the day.

6. Is there any rain alert for Uttar Pradesh and Bihar?
No, weather across Uttar Pradesh, Bihar, Uttarakhand, and Jharkhand will remain predominantly dry with no alerts for rain.

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