Area Forecast Discussion
Issued by NWS Grand Junction, CO

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FXUS65 KGJT 280531

Area Forecast Discussion
National Weather Service GRAND JUNCTION CO
1131 PM MDT Thu Jul 27 2017

Updated aviation discussion

.SHORT TERM...(Tonight through Friday night)
Issued at 220 PM MDT Thu Jul 27 2017

The monsoon plume pushed southeast and will clip the southernmost
portion of the San Juan mountains tonight. The rest of the area
will have less storm coverage tonight though moisture content will
remain higher than normal. On Friday the plume starts moving north
and west, with the San Juan mountains and the central CO mountains
east of a line from Glenwood Springs to Montrose getting increased
storm coverage Friday afternoon and evening.

.LONG TERM...(Saturday through Thursday)
Issued at 220 PM MDT Thu Jul 27 2017

The monsoonal plume will remains stationary Saturday but will
break up a bit thus resulting in slightly less storm coverage.
Sunday night will bring the beginning of another fairly strong
surge of monsoon moisture that will affect most of the forecast
area through Tuesday evening.

Strong high pressure over the Great Basin will produce northerly
flow over the area and drier conditions Wednesday and Thursday.


.AVIATION...(For the 06Z TAFS through 06Z Friday night)
Issued at 1131 PM MDT Thu Jul 27 2017

The northern end of monsoonal moisture is reaching into SE Utah
and SW Colorado and will allow shra and tsra to remain in
vicinity of KDRO for a few hours overnight. Activity is
anticipated to slow down by morning but convection will pick up
again beginning around 17z. Gusty winds will be possible after 18z
Friday...with showers and thunderstorms most likely across the
Four Corners region.




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