Area Forecast Discussion
Issued by NWS Flagstaff, AZ
Issued by NWS Flagstaff, AZ
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308 FXUS65 KFGZ 032155 AFDFGZ Area Forecast Discussion National Weather Service Flagstaff AZ 255 PM MST Wed Dec 3 2025 .SYNOPSIS...A weak weather system will bring a chance of light rain and snow showers from through this evening. Fair weather returns Thursday with a warming trend beginning on Friday and lasting into the start of next week. && .DISCUSSION...Today...A shortwave is currently making its expected transit over northern AZ. This feature is weak, but has brought just enough moisture and forcing to keep the forecast fairly tricky. Multiple disorganized bands of light-moderate showers have spread southward through the day. Snow has been pushed as low as 5000` within the heaviest showers, currently east of Flagstaff near Winslow. Behind these initial snow bands, spotty convective showers are beginning to fire off. The best setup for convective activity looks to be south of Flagstaff, however more limited showers are still possible to the west and north. Snow showers will grow more impactful as temperatures begin to dip this evening. The most likely location for travel impacts will be along/south of I-40 from Flagstaff eastward, however don`t be caught off guard by a brief heavy shower outside this region. Tonight and Thursday... The shortwave trough is quickly pushing eastward, and activity is expected to end by the late evening. Elevated northeasterly winds are anticipated downwind of terrain features tonight. Away from these regions, overnight lows will be very chilly. Chilly daytime temps will linger tomorrow, particularly to the north and east of the Rim. Friday and beyond...High pressure strengthens over the west coast and we look to stay outside of the storm track. Dry conditions with gradually warming temperatures are expected through the start of next week. && .AVIATION...Wednesday 03/18Z through Thursday 04/18Z...East of a KPGA-KGCN-KSEZ-KPAN-KSOW line, expect areas MVFR/IFR due to CIGS and -SHRA/-SHSN through 22Z-02Z, otherwise VFR. All other areas clearing rapidly and becoming VFR AFT 02Z for the remainder of the period. Sfc winds generally light, but could gust to 20kts from the NE tonight, lee of higher terrain. OUTLOOK...Thursday 04/18Z through Saturday 06/18Z...VFR conditions and light winds. && .FIRE WEATHER...Today and Thursday...Colder conditions arrive today as rain and snow showers develop, mainly along and north of the Mogollon Rim. Drier air follows this system for late tonight and Thursday, with cool temperatures continuing. Winds will stay generally light at 15 mph or less, northwesterly for today, then northerly to northeasterly on Thursday. Friday through Sunday...Dry conditions with temperatures gradually rising into the weekend. Winds will remain light with directions ranging from northwest through northeast. && .FGZ WATCHES/WARNINGS/ADVISORIES...None. && $$ PUBLIC...Lewandowski AVIATION...Peterson FIRE WEATHER...Peterson For Northern Arizona weather information visit weather.gov/flagstaff