Clime
← Back to Blog
Guides

Understanding Ice Storm Alerts: Examples and Preparation

June 17, 2026 · The Clime Team
Understanding Ice Storm Alerts: Examples and Preparation

Ice storms are among the most treacherous winter weather events, characterized by freezing rain that coats surfaces with a layer of ice. In the United States, the National Weather Service (NWS) issues specific alerts to inform the public about impending ice storms.

What Is an Ice Storm Warning?

An Ice Storm Warning is a hazardous weather statement issued by the NWS when freezing rain is expected to produce significant and possibly damaging accumulations of ice on surfaces. Typically, this warning is issued when ice accumulations of at least 0.25 inches (6.35 mm) are anticipated. (en.wikipedia.org)

Criteria for Issuance

The criteria for issuing an Ice Storm Warning can vary by region, but generally include:

  • Ice Accumulation: Forecasted ice accumulation of at least 0.25 inches (6.35 mm).

  • Duration: The expected duration of the freezing rain event.

  • Impact: Potential for significant disruptions to travel, power outages, and infrastructure damage.

Example of an Ice Storm Warning

An illustrative example of an Ice Storm Warning is as follows:

"URGENT - WINTER WEATHER MESSAGE National Weather Service Memphis TN 1136 AM CST Thu Jan 22 2026

MSZ002>006-008-009-011>017-020>024-TNZ053>055-090>092-231230- /O.UPG.KMEG.WS.A.0001.260123T1800Z-260126T0000Z/ /O.NEW.KMEG.IS.W.0001.260124T0000Z-260126T0000Z/

Marshall-Benton MS-Tippah-Alcorn-Tishomingo-Tate-Prentiss-Quitman- Panola-Lafayette-Union-Pontotoc-Lee MS-Itawamba-Tallahatchie- Yalobusha-Calhoun-Chickasaw-Monroe-Chester-Henderson-Decatur- Hardeman-McNairy-Hardin-

Including the cities of Ripley MS, Henderson, Water Valley, Coffeeville, New Albany, Oxford, Bolivar, Aberdeen, Amory, Houston, Savannah, Iuka, Booneville, Holly Springs, Pontotoc, Selmer, Marks, Ashland, Okolona, Fulton, Bruce, Senatobia, Corinth, Batesville, Tupelo, Calhoun City, Charleston, Lexington, Parsons, and Decaturville

1136 AM CST Thu Jan 22 2026

...ICE STORM WARNING IN EFFECT FROM 6 PM FRIDAY TO 6 PM CST SUNDAY...

  • WHAT...Significant icing expected. Total snow and sleet accumulations between 1 and 3 inches and ice accumulations between one half and one inch.

  • WHERE...Portions of North Mississippi and West Tennessee.

  • WHEN...From 6 PM Friday to 6 PM CST Sunday.

  • IMPACTS...Expect power outages that last more than a day and extensive tree damage due to the ice. Travel could be impossible. The hazardous conditions could impact the Friday evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. Prepare for extended power outages. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.

This example illustrates the detailed information provided in an Ice Storm Warning, including the expected timing, affected areas, anticipated ice accumulations, and recommended precautions. (en.wikipedia.org)

How to Prepare for an Ice Storm

Preparation is crucial to ensure safety during an ice storm. Consider the following steps:

  • Stay Informed: Monitor local weather updates and heed all warnings and advisories issued by the NWS.

  • Emergency Kit: Assemble an emergency kit with essentials such as water, non-perishable food, medications, flashlights, batteries, and a first aid kit.

  • Home Safety: Ensure your home is winterized, with proper insulation and weatherstripping to prevent heat loss.

  • Power Outage Preparedness: Have alternative heating sources, like a fireplace or portable heater, and keep extra blankets and warm clothing available.

  • Travel Precautions: Avoid unnecessary travel during ice storms. If travel is essential, equip your vehicle with winter tires, keep a full gas tank, and have an emergency kit in the car.

Conclusion

Ice storms pose significant risks, including power outages, hazardous travel conditions, and infrastructure damage. Understanding the criteria for Ice Storm Warnings and taking proactive measures can help mitigate these dangers. Always prioritize safety by staying informed and prepared during winter weather events.

Highlights:

Frequently Asked Questions