Flagstaff, AZ
Weather Forecast Office
FXUS65 KFGZ 232143 AFDFGZ Area Forecast Discussion National Weather Service Flagstaff AZ 243 PM MST Sun May 23 2021 .SYNOPSIS...Another cold morning Monday will quickly warm for a very nice day across the area. Expect light breezes Monday and Tuesday, becoming breezy southwest winds Wednesday into the weekend. Look for cool mornings and mild afternoon temperatures through the coming week. && .DISCUSSION...Satellite imagery shows the low pressure system to the north continuing to move northeast into Montana. Winds around the area have been mostly light and variable this afternoon with a few gusts to near 20 mph. Skies are clear across the state except for a few altocumulus along the Utah border. With the very dry atmosphere over the region tonight, expect another cold morning Monday, only a few degrees warmer than today. Monday will warm to about five degrees over today`s highs and Tuesday will warm yet another five degrees to about the seasonal average for the area. For the rest of the week, temperatures remain near normal as a series of troughs pass to the north, preventing a ridge from setting up over the Southwest, Winds will be mostly light through Tuesday, but will become breezy southwest afternoon winds Wednesday through the rest of the week. Models indicate another cutoff low forming off the southern California Coast over the weekend to give us gusty southwest winds going into next week. Confidence is low on where this low/trough will set up. If it slides east, more over Southern California, northern Arizona will see strong south to southwest winds Saturday through Monday much like we had this past Thursday through Saturday. We will keep a close eye on this as it develops. Stay tuned for updates. In the mean time, it will be a beautiful week to get outside with mild temperature, generally light winds and sunny skies. && .AVIATION...For the 00Z package...Expect VFR conditions under clear skies for the next 24 hours. Light west to southwest winds will become light to calm overnight. Monday will see light terrain driven upslope breezes with gusts to 15 kts over the higher terrain. Aviation discussion not updated for TAF amendments. && .FIRE WEATHER...Expect light breezes Monday and southwesterly breezes Tuesday. Conditions remain very dry with RH values in the single digits and warming temperatures through Tuesday. Wednesday through Friday...Dry and warm weather continues. Breezy southwest winds each afternoon. Expect Haines Index values of 5 or 6 along and north of the Rim. && .FGZ WATCHES/WARNINGS/ADVISORIES...NONE. && PUBLIC...DB AVIATION...DB FIRE WEATHER...DB For Northern Arizona weather information visit weather.gov/flagstaff
