


Area Forecast Discussion
Issued by NWS Flagstaff, AZ
Issued by NWS Flagstaff, AZ
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720 FXUS65 KFGZ 141131 AFDFGZ Area Forecast Discussion National Weather Service Flagstaff AZ 431 AM MST Sat Jun 14 2025 .SYNOPSIS...A strong area of high pressure will remain over the region for the next few days, bringing seasonably warm temperatures and dry conditions. A weak short-wave looks to slide through early next week, mainly increasing winds and slightly dropping afternoon highs. && .DISCUSSION...High pressure continues to build into the area with heights peaking on Sunday. Main consequence of this feature will be the warmest temperatures seen so far this year with highs peaking 5 to 10 degrees above mid June averages, with no records expected to be reached. An Excessive Heat Warning is now in effect starting today and lasting into Monday evening for areas below 4000 feet in the Grand Canyon, so for any hikers thinking about venturing below the Rims, plan accordingly or consider postponing your hike for another time. Monday and Tuesday a weak shortwave brushes by to the north and flattens the ridge for a couple days. No precipitation expected and temperatures back off a few degrees but do expect winds to pick up out of the southwest between 15 and 25 mph with gusts 30 to 35 mph. Minimum Relative Humidity values will be at 5-10% each day so we will be approaching critical or near critical fire weather conditions, especially in the Little Colorado River Valley. Will keep monitoring the situation to determine whether or not fire weather headlines will be needed. High pressure will begin to rebound into the area starting on Wednesday. This will keep things dry with maximum temperatures reaching 5 to 10 degrees above average again through the end of the week. && .AVIATION...Saturday 14/12Z through Sunday 15/12Z...VFR conditions, no precipitation expected. Winds SW 10-15kts, gusts to 20kts during the day, light and variable or terrain driven overnight. OUTLOOK...Sunday 15/12Z through Tuesday 17/12Z...VFR conditions, no precipitation expected. Winds SW 10-15kts, gusts to 25kts on Sunday, SW 10-20kts, gusts to 30kts on Monday. && .FIRE WEATHER...Today and Sunday...Hot and dry with temperatures 5- 10 degrees above average. Minimum relative humidity 5-10%. Winds SW 10-20 mph with gusts 20-25 mph both days. Monday through Wednesday...Hot and dry with temperatures 5-10 degrees above average. Minimum relative humidity 5-10% each day. SW- W winds 15-25 mph with gusts 25-35 mph on Monday and Tuesday, becoming 5-15 mph on Wednesday. Near-critical to critical fire weather concerns on Monday and Tuesday, mainly along the Little Colorado River Valley. && .FGZ WATCHES/WARNINGS/ADVISORIES... Extreme Heat Warning from 10 AM this morning to 7 PM MST Monday for AZZ006. && $$ PUBLIC...Bernhart AVIATION...Bernhart FIRE WEATHER...Bernhart For Northern Arizona weather information visit weather.gov/flagstaff