FEMA to conduct test of emergency alert system on Aug 11 abc15.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from abc15.com Daily Mail and Mail on Sunday newspapers.
The NWS defines the three tag categories as such:
A
base storm produces 58 mph winds and/or 1-inch sized hail. If no damage tag is added to a severe weather alert, the category should be expected to be base level.
A
considerable storm will have winds at 70 mph and/or hail measuring 1.75-inch diameter.
Destructive storms will have winds at 80 mph and hail measuring about 2.75 inches in diameter, or about the size of a baseball. This storm tag will immediately trigger a Wireless Emergency Alert on all smartphones within the area.
Only storms with the destructive tag will result in a Wireless Emergency Alert, the NWS said. Further details on these categories are available here.
New Destructive Severe Thunderstorm Warning category to trigger Wireless Emergency Alerts on mobile phones
National Weather Service
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 August 2, 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. 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.
By Kathi O Shea August 3, 2021 3:23 pm
KGMI Washington Emergency Management Division
WASHINGTON, D.C. The Federal Emergency Management and the Federal Communications Commission will be conducting a national test next week.
On Wednesday, August 11th, a test of Wireless Emergency Alerts and the Emergency Alert System will be conducted at 11:20am.
The alert will conducted on TV and radio, but those wishing to participate in the phone test will need to opt in.
The rest is similar to the one the Washington Emergency Management Division did with ShakeAlert in King, Thurston and Pierce counties in February.
More information and details of how to opt in to the test can be found here.
Destructive Weather Emergency Alerts In Illinois q985online.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from q985online.com Daily Mail and Mail on Sunday newspapers.