


Area Forecast Discussion
Issued by NWS Flagstaff, AZ
Issued by NWS Flagstaff, AZ
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730 FXUS65 KFGZ 031046 AFDFGZ Area Forecast Discussion National Weather Service Flagstaff AZ 346 AM MST Thu Apr 3 2025 .SYNOPSIS...Cold and unsettled weather will continue for the rest of this week, with chances for showers each day through Saturday. High pressure begins to build back into Arizona early next week, with dry and warmer weather expected. && .DISCUSSION...A large trough of low pressure will remain over The Great Basin and Desert Southwest through Friday and then it will move eastward on Saturday. A shortwave rotated through the trough yesterday afternoon and evening and brought several inches of snow to the higher elevations of the Western Mogollon Rim and a few hundredths of an inch of rain to the lower elevations. Isolated showers continued across northern Arizona through the night. An area of more organized showers has developed this morning south of I-40 in Coconino, Gila, and Yavapai counties. The showers are moving to the east. Another shortwave will develop over eastern Nevada this morning and will rotate through northern Arizona today, bringing additional showers especially during. A few thunderstorms will be possible once again. Additional snow amounts will be a trace to 2" above 5500 feet and may melt off between showers. The low remains over our region Friday with another round of rain and snow showers and light accumulation above 6500 feet. Finally by Saturday the low moves east of the state, with some lingering showers mainly along the AZ/NM state line. High pressure will start to build over Arizona Sunday into at least the middle of next week with much warmer and drier weather. High temperatures could warm by 30 degrees from today to Wednesday. && .AVIATION...Thursday 03/12Z through Friday 04/12Z...IFR/MVFR conditions in low CIGS/BR this before 15Z, with some localized LIFR conditions in the higher terrain. SCT SHRA/SHSN will increase in coverage through the morning, with periods of IFR/MVFR conditions expected through 03Z. Winds SW 5-15 kts before 02Z, then becoming light and VRB. Gusty, erratic winds possible near SHRA/SHSN. OUTLOOK...Friday 04/12Z through Sunday 06/12Z...IFR/MVFR conditions possible again in SCT SHRA/SHSN on Friday, especially during the afternoon. Conditions improve on Saturday with SHRA/SHSN activity focused mainly east of KFLG. Winds N/NE 5-15 kts on Friday, then increasing to 10-20 kts on Saturday. Locally gusty winds downwind of the higher terrain Saturday night. && .FIRE WEATHER...Today and Friday...Scattered rain/snow showers each day, especially during the afternoon and early evening hours. Winds southwest 5-15 mph today, becoming north/northeast 10-20 mph on Friday. Gusty, erratic winds possible around any stronger shower. Saturday through Monday...Rain/snow showers remain across the eastern-half of Arizona on Saturday, with dry conditions returning for Sunday and Monday, along with warming temperatures. Winds north/northeast 10-20 mph on Saturday, becoming northwest 5-15 mph on Sunday, then switching to the west/southwest on Monday. && .FGZ WATCHES/WARNINGS/ADVISORIES...None. && $$ PUBLIC...MAS AVIATION...Humphreys FIRE WEATHER... Humphreys For Northern Arizona weather information visit weather.gov/flagstaff