The test will last between three and five minutes, and a team of 20-some volunteers will observe and collect data at siren sites. Monday’s test of the attack mode function will be Sedgwick ...

Sedgwick County Emergency Management will test the attack mode function of its 70-year-old Thunderbolt siren system on Monday. The attack mode function was last tested in 2015.

Two new sirens should be installed in local parks by the next scheduled siren test later this month, but it may be close, said Mike Honigsberg, Enid public safety director. “The sirens are here ...

CHATHAM COUNTY, Ga. (WTOC) - CEMA is investigating a malfunctioning siren near Thunderbolt. No immediate danger has been identified by CEMA. This is a developing story. WTOC will provide updates as ...

On April 22, 1952, the first-ever air raid siren test sounded in Wichita. Some of the oldest Thunderbolt sirens in the United States were still in use across Sedgwick County up until late last year.

That's because the Caledonia fire siren, a 1962 1003 air raid siren, Thunderbolt, was actually a civil defense siren. Last February, CFD retired the 50 year old siren and installed a new ...

Despite being closed, the Indian Point Power Plant in Buchanan had a siren test on Wednesday evening. The sirens were expected to be heard for four minutes in parts of Westchester, Rockland ...

SANTA ROSA, Calif.--(BUSINESS WIRE)--Keysight Technologies, Inc. (NYSE: KEYS) announced that Allion Labs has selected Keysight as its test partner for Thunderbolt 5 product certification testing ...

Residents have been warned a loud warning siren will ring out from the gasworks at Blochairn Road, Provan, on Thursday, April 10, with both the warning and all-clear sirens sounding.

On April 15, the Erie County Department of Public Safety will be performing its quarterly disaster/storm siren test in Erie County. The following areas will be affected by the test: 12:00 p.m.