Red Flag Warnings portend challenges for firefighters in Arizona

Red Flag Warnings May 18, 2012
Red Flag Warnings May 18, 2012
Red Flag Warnings May 18, 2012

A Red Flag Warning always indicates that firefighters could be presented with challenges when trying to control a wildfire under the predicted extreme weather conditions. Today a Red Flag Warning is in effect for most of the state of Arizona including the areas in which several large fires are burning — the Gladiator, Bull Flat, and Sunflower fires. The Warning is in effect in the central Arizona area until 8 p.m. MST Friday evening for strong winds and low relative humidity. The forecast is for southwest winds at 15 to 30 mph with gusts of 35 to 50 mph, and a minimum relative humidity as low as 8 percent.

This could cause the Gladiator fire, which has now burned 9,900 acres, to grow on the north side again on Friday and move closer to the community of Mayer. At 2 a.m. Friday morning MST the Gladiator fire was about 7 miles from Mayer.

As we noted on Thursday, again the entire state of Utah miraculously avoided a Red Flag Warning. Maybe all of their fire weather forecasters are on their days off. Or, the map was created by the staff of the Onion, who previously discovered a wildfire that “raged back into control”.

Gladiator fire, May 17, photo by Michelle Fidler, SWIMT
Gladiator fire, May 17, as seen from Mayer High School. Photo by Michelle Fidler, SWIMT

The weather at 11:53 a.m. MST at the Sunset Point weather station about 7 miles southeast of the Gladiator fire was: 82 degrees, 11 percent RH, winds 14 mph out of the SSW with gusts of 24 mph.

The map below shows the Gladiator fire’s perimeter as of 2 p.m. MST May 17, 2012. The entire map can be seen HERE.

Map Gladiator Fire, 2 p.m. May 17, 2012
Map Gladiator Fire, 2 p.m. May 17, 2012

The fire has knocked a Prescott television station off the air. The transmitter site for KAZT-TV has not been burned by the fire but the electrical power leading to the site has been interrupted. A backup power generator supplied electrical power to the transmitters for a while, but then it failed. Technicians cannot access the transmission site due to road closures.

Arizona fire stats 5-18-2012
Arizona and New Mexico fire stats 5-18-2012, from NIFC.

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Author: Bill Gabbert

After working full time in wildland fire for 33 years, he continues to learn, and strives to be a Student of Fire.

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