Tornado about to touch down over a city

Severe Convective Storms

Contact CNA's Claim Center

Report a New Claim

 

CNA’s Claim Catastrophe Operations Center is fully operational and ready to assist customers with claims related to severe weather.

 

Voice: 877-CNA-ASAP (877-262-2727), Select Option 2
Fax: 800-953-7389
Email: lossreport@cnaasap.com

 

Need additional support once your claim is reported? Our Claims professionals are on hand to assist with policyholder needs.


Voice: 877-706-0671
Fax: 877-733-4254

What are Severe Convective Storms?


Severe convective storms are fast-developing weather events that can produce:
 

  • Damaging straight-line winds
  • Large hail
  • Tornadoes
  • Heavy rainfall and flash flooding
     

These storms are among the most frequent and costly natural hazards, often causing property damage, operational disruption and safety risks with little advance notice.

 

Severe convective storms: Guidance when it matters most


Whether you’re advising others or protecting your own operations, preparation and timely action are critical. Explore CNA’s guidance to help support preparedness, response and recovery before, during and after severe weather events.

 

For Agents & Brokers

 

Support your clients before, during and after severe weather events with ready-to-use guidance and communication tools including:

 

  • Client-ready preparedness and response guidance
  • Communication templates for pre- and post-storm outreach
  • Shareable resources to reinforce risk mitigation

 

Download Agent & Broker toolkit

 

For Business & Property Owners

 

Protect your people, property and operations with proactive planning and informed decision-making.

Preparation can help reduce disruption and limit damage when severe weather occurs. To protect facilities and property, we recommend:
 

  • Inspecting roofing, drainage and building systems
  • Securing outdoor equipment and loose materials
  • Reinforcing vulnerable areas such as windows and doors
     

To learn more, use the following resources:
 

 

  • Identify critical business functions and dependencies
  • Prepare for potential power and system outages
  • Establish and practice clear response and recovery procedures
     

Download the Equipment and Systems Outage Preparation and Recovery Guide for more information.

  • Protect sensitive equipment from water exposure
  • Prepare shutdown procedures
  • Plan for safe restart and recovery
  • Establish clear communication protocols 
  • Address slip, trip and fall risks caused by wet conditions
  • Reinforce workplace safety procedures 
     

Download the Equipment Exposure Preparation and Recovery Guide for more information
Download the Guide to Controlling Wet and Slippery Floors

Taking timely action can help protect your people and minimize damage. Monitor weather alerts closely. When appropriate:

 

  • Secure facilities and equipment safely
  • Communicate with employees
  • Activate your emergency response plan

Download the Hurricane Preparedness Checklist

A structured recovery approach can help you return to operations more quickly.
 

  • Inspect property and equipment safely
  • Document all damage thoroughly
  • Take steps to prevent additional loss
  • Begin restoration and recovery efforts
Tornado about to touch down over a forest

Expert Insight

 

"Severe convective storms often develop rapidly, leaving little time to react. Organizations that prepare in advance and establish clear response protocols are best positioned to reduce disruption and recover more quickly."

 

- Ali Soltani, PhD, PE  Risk Control Consulting Director - Global Natural Hazards Strategy

Car driving through rain on the road

Additional Resources

 

Stay informed with trusted sources:

National Weather Service (NWS): Severe weather forecasts and alerts

NOAA National Severe Storms Laboratory: Storm research and education

Ready.gov: Business preparedness guidance

FEMA: Disaster recovery resources