Blog Post

New “Destructive” Severe Thunderstorm Warning category to trigger Wireless Emergency Alerts on mobile phones

National Weather Service • July 22, 2021

Severe thunderstorms can be life-threatening, but not all severe storms are the same. Hazardous conditions range from tornadoes, large hail storms, and widespread straight-line winds called derechoes, to cloud-to-ground lightning and flash flooding. Starting July 28, the National Weather Service will better convey the severity and potential impacts from thunderstorm winds and hail by adding a “damage threat” tag to Severe Thunderstorm Warnings, similar to our Tornado and Flash Flood Warnings.


“Destructive” and “Considerable” Damage Threat Categories


We developed three categories of damage threat for Severe Thunderstorm Warnings to distinguish between high-impact and low-impact events. The categories, in order of highest to lowest damage threat, are destructive, considerable, and base. These tags and additional messaging are designed to promote immediate action, based on the threats.


 

  • The criteria for a destructive damage threat is at least 2.75 inch diameter (baseball-sized) hail and/or 80 mph thunderstorm winds. Warnings with this tag will automatically activate a Wireless Emergency Alert (WEA) on smartphones within the warned area.


  • The criteria for a considerable damage threat is at least 1.75 inch diameter (golf ball-sized) hail and/or 70 mph thunderstorm winds. This will not activate a WEA.


  • The criteria for a baseline or “base” severe thunderstorm warning remains unchanged, 1.00 inch (quarter-sized) hail and/or 58 mph thunderstorm winds. This will not activate a WEA. When no damage threat tag is present, damage is expected to be at the base level.

 


On average, only 10 percent of all severe thunderstorms reach the destructive category each year, nationwide. Most of these storms are damaging wind events such as derechoes and some of the larger, more intense thunderstorms, called “Supercell” storms that can typically produce very large hail in their path. The new destructive thunderstorm category conveys to the public urgent action is needed, a life-threatening event is occurring and may cause substantial damage to property. Storms categorized as destructive will trigger a WEA to your cell phone.


All National Weather Service Severe Thunderstorm Warnings will continue to be issued and distributed via weather.gov, NOAA Weather Radio, Emergency Alert System and through dissemination systems to our emergency managers and partners. The addition of damage threat tags are part of the broader Hazard Simplification Project to improve communication of watches and warnings to the public.


Thirteen of the 22 costliest weather disasters in 2020 were severe thunderstorms. The new “destructive” tag would have activated a Wireless Emergency Alert for many of these impactful events, including the costliest thunderstorm in U.S. history, the $11 billion derecho that affected Iowa in August 2020.


Learn how to stay safe in a severe thunderstorm. Knowing what to do before, during, and after severe weather can increase your chances of survival.


The NOAA Storm Prediction Center provides forecasts of severe weather up to seven days in advance, and severe thunderstorm and tornado watches several hours before storms form.


Explore our Severe Weather 101 webpage.

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Homeland Security, Criminal Justice Grant Funding Available for East Texas Public Safety Projects

By East Texas Council of Governments • December 19, 2024
State agencies, local governments, nonprofit organizations, universities or colleges, and federally recognized Native American tribes can soon apply for FY 2026 grant funds from the Office of the Governor, Public Safety Office , State Homeland Security Grant Program and Criminal Justice division. New and continuing applicants in ETCOG’s fourteen (14) county region are invited to attend FREE grant application workshops hosted by the ETCOG Public Safety division . Workshops for each grant category to be held virtually from December 18, 2024, through February 13, 2025. Grant funding will be available for the following programs: Homeland Security State Homeland Security Program – Regular Projects (SHSP-R) Law Enforcement Terrorism Prevention Activities (LETPA) Criminal Justice General Victim Assistance Direct Services Program (VOCA) Violence Against Women Justice and Training Program (VAWA) Juvenile Justice & Truancy Prevention Grant Program (SF-JJTP) Criminal Justice Program (DJ-JAG) “The goal is to improve public safety, support victims of crime, and assist jurisdictions by filling gaps in the region via funding that promotes innovative solutions to regional problems,” said ETCOG’s Public Safety Director, Stephanie Heffner. “We help applicants understand what needs to go into their grant applications and what they have to track once they receive funding from the state so we can successfully bring public safety projects to East Texas.” Workshops for Homeland Security will be held on the following dates: Wednesday, December 18, 2024 - 10:00 AM Wednesday, January 1, 2025 - 10:00 AM Wednesday, January 8, 2025 - 10:00 AM Wednesday, January 15, 2025 - 10:00 AM Wednesday, January 22, 2025 - 10:00 AM Wednesday, January 29, 2025 - 10:00 AM Wednesday, February 5, 2025 - 10:00 AM Workshops for Criminal Justice will be held on the following dates: Monday, January 7, 2025 - 2:00 PM Wednesday, January 15, 2025 - 10:00 AM Thursday, January 23, 2025 - 2:30 PM Wednesday, January 29, 2025 - 2:00 PM Workshops are mandatory if you plan to apply for funding. To participate in a virtual workshop for Homeland Security, visit www.pineywoods911.com/homeland-security . To participate in a virtual workshop for Criminal Justice, visit www.pineywoods911.com/criminal-justice .
A woman in a police uniform is standing in a park.

$3.4M in Public Safety Grants Approved for East Texas Region

By ETCOG Public Safety • December 17, 2024
The East Texas Council of Governments (ETCOG) announces $3.4 million in grants from the Governor's Public Safety Office awarded to East Texas jurisdictions and nonprofits.
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