Area Forecast Discussion
Issued by NWS Flagstaff, AZ
Issued by NWS Flagstaff, AZ
Versions:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
410 FXUS65 KFGZ 161805 AFDFGZ Area Forecast Discussion National Weather Service Flagstaff AZ 1105 AM MST Sun Nov 16 2025 .SYNOPSIS...Showers remain mostly south of I-40 currently, and will continue through the morning/afternoon hours today. Cooler temperatures and breezy winds will be on tap for this afternoon, and much of the upcoming work-week. Chances for additional rain and snow showers forecast by mid-week. && .DISCUSSION...A handful of locations have already seen a nice rain from yesterday evening, but if you didn`t see precipitation yet, there is still a chance! The main frontal band of showers looks to move west to east this morning and afternoon, and then this is when we could see snow levels drop closer to 7500-8000`. Our forecast still has only the highest mountain tops receiving measurable snowfall, and most of that falling between 5 AM MST and 5 PM MST today. Any snowflakes that mix down closer to 7000-7500` likely won`t stick with the above freezing surface temperatures. Monday will be mostly quiet weather-wise as the current storm system moves to the northeast, but another low pressure system is forecast to quickly follow. Daytime highs look to remain below normal for much of our CWA on Monday, and remain 5-15 degrees below normal through at least the end of the week. This more noticeable dip in afternoon temperatures will be thanks to the stronger low pressure system moving south along the California Coast. Pre-frontal precipitation looks to fall Tuesday morning through afternoon, but we cannot rule out isolated activity developing Monday evening and overnight. If we do see earlier precipitation, rainfall will once again be the dominate precipitation type due to snow levels landing generally above 8000` through 5 AM MST Tuesday. Beyond that, snow levels look to gradually drop west to east throughout the day, potentially reaching down to 6000-6500`. The main frontal passage from this system will move through on Wednesday, and this is when we`ll likely see the majority of any accumulating snow down to 6000`. Now before you get too excited...this system still has the potential to pull more northward and leave us with warmer conditions. Although model guidance seems to have good agreement that we`ll stay in a cold and wet pattern through at least the middle of the week, we are still a few days out. Continue to check back for more details on this mid- week storm. Beyond Wednesday...Confidence is low on what will transpire after this secondary storm system roles through the state. Overall, we`ll likely stay in an unsettled pattern, but there isn`t much to share beyond that. && .AVIATION...Sunday 16/18Z through Monday 17/18Z...Areas of SHRA moving east with a front currently along a KPGA-KINW-KPAN line. ISO -SHRA with -SHRASN above 7000 feet MSL possible along high terrain behind the FROPA through 02Z. MVFR and IFR near showers are expected through 02Z, then CIGS likely lingering over the higher terrain overnight. Winds S-SW 10-20 kts with gusts 25-35 kts through 02Z, then subsiding to 5-10 kts overnight. OUTLOOK...Monday 17/18Z through Wednesday 19/18Z...MVFR/IFR conditions possible in ISO SHRA/SHRASN in the higher terrain Monday afternoon, becoming SCT to WDSPRD Monday night into Tuesday. SN possible Monday night and Tuesday above 6500-7000 feet MSL. Winds S 5-10 kts on Monday, increasing to 10-15 kts with gusts 20-25 kts on Tuesday. && .FIRE WEATHER...Today and Monday...Widespread rain showers move west to east through the day today, with potentially a thunderstorms and rain/snow mix in the higher elevations. Coverage becomes isolated on Monday, mainly across the higher terrain. Wind southwest 10-20 mph with gusts to 25-35 mph, decreasing to 5-15 mph on Monday. Tuesday through Thursday...Scattered to widespread rain/snow showers through Wednesday, becoming more isolated on Thursday. Winds south 10-20 mph on Tuesday, subsiding to 5-10 mph on Wednesday. Winds then shift westerly on Thursday. && .FGZ WATCHES/WARNINGS/ADVISORIES...None. && $$ PUBLIC...Konieczny AVIATION...Lewandowski FIRE WEATHER...Humphreys For Northern Arizona weather information visit weather.gov/flagstaff