* AFFECTED AREA. Fire Weather Zone 478 Salt Lake Desert, Fire Weather Zone 479 Wasatch Mountains, Fire Weather Zone 480 Uinta Mountains, Fire Weather Zone 481 Western Ashley National Forest, Fire Weather Zone 482 Western Uintah Basin, Fire Weather Zone 483 Southern Ashley National Forest, Fire Weather Zone 484 Tavaputs Plateau, Fire Weather Zone 488 Manti National Forest, Fire Weather Zone 489 San Rafael Swell, Fire Weather Zone 493 Central Utah Mountains, Fire Weather Zone 494 Henry Mountains, Fire Weather Zone 496 Color Country Mountains and Fire Weather Zone 498 Grand Staircase. * THUNDERSTORMS. Scattered thunderstorms will form over the higher terrain of Utah during the afternoon and drift into the adjacent valleys through the evening. Given the extended period of very dry conditions with little to no rain, new wildfire starts are likely with any lightning. * OUTFLOW WINDS. Gusty and erratic outflow winds up to 50 mph are possible with any thunderstorms. * IMPACTS. Critical fire weather conditions are expected. Any new fire starts or existing fires may spread rapidly.
