


Area Forecast Discussion
Issued by NWS Flagstaff, AZ
Issued by NWS Flagstaff, AZ
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845 FXUS65 KFGZ 290847 AFDFGZ Area Forecast Discussion National Weather Service Flagstaff AZ 147 AM MST Fri Aug 29 2025 .SYNOPSIS...Slight chances for precipitation will stick around for today, before moisture becomes limited over the White Mountains and eastern Rim this weekend. High pressure looks to build over the Southwest next week, which could bring back additional showers/storms. && .DISCUSSION...Light showers are noted across portions of northern Arizona this evening and will likely continue through the overnight and early morning hours. This last wave of moisture is from remnants of Tropical Storm Juliette. We could see a few left over showers/storms this afternoon, but activity will be much quieter than we`ve seen over the last several days. Over the weekend, moisture will continue to become limited as an area of high pressure generally flattens across the region. There will still be slight chances for showers/storms across the eastern Mogollon Rim and White Mountains, but elsewhere will be dry. During this timeframe we will also see temperatures trend upward a few degrees, landing near normal for this time of year. Moving toward the Labor Day holiday and next week, moisture gradually should expand westward due to high pressure beginning to build across the Southwest. Model guidance does not suggest this ridge centering itself over the Four Corners, but we`ll still be under a synoptic flow that should bring sufficient moisture back to northern Arizona. For now, our forecast (which is heavily following the NBM) shows precipitation chances greatest along and south of a Fredonia- Window Rock line by mid- week. && .AVIATION...Friday 29/06Z through Saturday 30/06Z...Expect VFR conditions and WDSPRD CIGS from 10-12kft AGL through 14Z-18Z Friday. CIGS becoming more scattered by Friday afternoon. ISOLD-SCT -SHRA possible most locations, but especially N and NW of KFLG during the same time period. Then, SCT -SHRA/-TSRA INVOF the White Mtns AFT 19Z Friday. Sfc winds not expected to affect flight operations. OUTLOOK...Saturday 30/06Z through Monday 01/06Z...Expect mainly VFR conditions. ISOLD-SCT SHRA/-TSRA from 19Z-02Z each day may produce brief MVFR. Convective activity primarily INVOF the White Mtns, but may spread NE toward the KFLG terminal. Away from any convective gust activity, sfc winds are not expected to affect flight operations. && .FIRE WEATHER...Friday and Saturday...Isolated to scattered showers and thunderstorms expected today, becoming more isolated over the White Mountains and eastern Rim on Saturday. Temperatures will also warm up through the weekend. Look for minimum RH values between 20- 40% on Friday, dipping to 15-35% on Saturday. Expect westerly winds 5-15 mph this afternoon, becoming more variable on Saturday. Winds near showers/storms could be gusty/erratic. Sunday through Tuesday...Precipitation chances forecast each day, initially over the White Mountains and eastern Rim and expanding westward through the beginning of the week. Minimum RH values generally between 10-20% north of I-40, and between 15-30% south of I-40. Outside of storm driven winds, expect variable winds 5-15 mph. && .FGZ WATCHES/WARNINGS/ADVISORIES...None. && $$ PUBLIC...Konieczny AVIATION...Peterson FIRE WEATHER...Konieczny For Northern Arizona weather information visit weather.gov/flagstaff