textproduct: NWS Flagstaff
This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.
SYNOPSIS
Isolated showers and thunderstorms will linger into this afternoon across the Four Corners region, with cool and dry conditions otherwise expected. Gradually warmer and dry conditions continue through at least the middle of the coming week.
DISCUSSION...through this morning
Patchy fog is expected across the higher terrain through early this morning, with some potential for freezing fog in the usual colder locations. Therefore, some untreated and elevated surfaces could be slick early this morning.
This afternoon...A cut-off low is currently spinning over northern Arizona and southern Utah. As the low continues to lift northeastward, drier air is ushered back into much of northern Arizona. A few isolated wrap-around showers and possibly a thunderstorm are expected later this afternoon, mainly across the higher terrain of northeastern Arizona. While a few brief heavy downpours could be possible, much of the rainfall looks to be light.
Monday through Saturday...As the closed-low lifts into Colorado, weak ridging, or even quasi-zonal flow looks to build into the southwest. Gradually warming temperatures and dry conditions look to prevail through Thursday.
A deepening trough over the Pacific Northwest looks to breakdown this pattern near the end of next week. Cooler temperatures and a return of precipitation look probable near the end of the week as a result.
AVIATION...Sunday 25/12Z through Monday 26/12Z
Primarily VFR conditions. Localized MVFR in patchy FG through 15Z, and again in ISOLD -SHRA/-TSRA mostly northeast of a KPGA-KRQE line from 19Z-02Z. Winds VRB 5-10 kts.
OUTLOOK...Monday 26/12Z through Wednesday 28/12Z...VFR conditions. VRB winds 5-10 kts on Monday, then S/SW 5-15 kts on Tuesday.
FIRE WEATHER...Today and Monday
Mainly dry conditions, outside of a slight chance for isolated showers and thunderstorms over the Four Corners this afternoon. Otherwise, cool with variable winds 5-10 mph.
Tuesday through Thursday...Dry conditions with gradually warming temperatures. Daytime winds south/southwest 5-15 mph, increasing 10- 20 mph by Thursday.
FGZ WATCHES/WARNINGS/ADVISORIES
None.
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