Fire alarms blared Thursday afternoon at Dos Palos High School.</p><p>But unlike the periodic signals to clear classrooms every student hears from time to time in public school, this was no drill.</p><p>A fire that began about 1:16 p.m., reportedly in a wood shop storage area, quickly spread to the school's 1950s-era ag science and industrial arts wings.</p><p>Sixty-three firefighters, nine engines and a pair of water tenders from three counties and four cities responded to the fire on East Blossom Street.</p><p>But the blaze eventually consumed the entire ag wing, and the wood shop and auto shop portion of the industrial arts building.</p><p>Firefighters were able to save the northerly most portion of the arts building, which housed the school's technology lab, but it was unknown Thursday afternoon whether the computers inside sustained damage from the intense heat and smoke.</p><p>All of the school's 750 students and its staff were evacuated from the campus soon after firefighters arrived. No one was injured in the fire.</p><p>"This is why we have fire drills," said the high school's principal Greg Thompson. "I commend our students and staff. They knew what to do."</p><p>The incident began during lunch break at the school so none of the students or teachers who would otherwise have been inside the two affected wings were in the buildings.</p><p>Thompson, who has been principal of the school for just four months but has been working in education for 20 years, said Thursday's fire was the first he's witnessed on any campus.</p><p>"The first in my entire academic career, clear back to kindergarten," he said.</p><p>Dos Palos City Manager Darrel Fonseca attended Dos Palos High and studied in some of the classrooms destroyed by the blaze.</p><p>"There's a lot of history burning down there," he said as he watched the flames engulf the two wings.</p><p>Merced County Supervisor Jerry O'Banion, also a Dos Palos High School alumnus, agreed with Fonseca saying he feared all of the school's FFA records burned with the ag science building.</p><p>The city's Police Chief Barry Mann said video cables and perhaps some cameras his department had obtained with Secure Our Schools grant funding probably burned as the project to install them was nearly completed.</p><p>Thompson said school would probably be in session Friday, but he would make the final decision after speaking with fire department officials Thursday night.</p><p>CalFIRE Capt. Ryan Williams said the cause of the fire has yet to be determined. He estimated the damage to the buildings and contents to be between $5 and $10 million.</p><p>Williams said some firefighters would be at the scene throughout the night.