FXUS65 KFGZ 191054 AFDFGZ Area Forecast Discussion National Weather Service Flagstaff AZ 354 AM MST Thu Mar 19 2026 .SYNOPSIS...Arizona will roast under a summer-like high pressure cell, with temperatures reaching 20 to 30 degrees above normal for the remainder of this week and into the weekend. Please exercise appropriate precautions if you are planning on any outdoor activity through the weekend. && .DISCUSSION...An anomaly of a high pressure cell will center over Arizona today and Friday, before slightly weakening over this weekend. The ridge flattens out a bit early next week, but may amplify again later in the week. Expect record breaking temperatures to persist, perhaps all the way through the forecast period. However, today through Friday will be the warmest days. && .AVIATION...Thursday 19/06Z through Friday 20/06Z...VFR conditions. Winds light and variable or terrain driven overnight, especially at KSEZ where winds NE 10-20kts expected from 03Z-15Z. Variable wind 10 kts or less on Thursday. OUTLOOK...Friday 20/06Z through Sunday 22/06Z...VFR conditions. SW-NW winds 5-15 kts Friday, then SW 10-20 kts Saturday. Light and variable or terrain driven winds overnight. && .FIRE WEATHER...Thursday and Friday...Dry and historically warm. Daytime temperatures 20-30 degrees above normal each day, with large diurnal swings at night. West through southwest winds 5 to 15 mph each afternoon. Saturday through Monday...Very dry with historically warm daytime temperatures. Expect temperatures to decrease slightly by Sunday or Monday, but still remain at least 20 degrees above normal. Southwest winds 15 to 25 mph Saturday, decreasing to 10 to 20 mph and turning more west-southwest for Sunday and Monday. Dry conditions, combined with historically warm temperatures and increased wind speeds, may contribute to enhanced fire weather concerns during this period. && .FGZ WATCHES/WARNINGS/ADVISORIES... Extreme Heat Warning until 8 PM MST Sunday for AZZ006-037. && $$ PUBLIC...Peterson AVIATION...JJ FIRE WEATHER...Peterson For Northern Arizona weather information visit weather.gov/flagstaff