Area Forecast Discussion
Issued by NWS Grand Junction, CO

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FXUS65 KGJT 121036

Area Forecast Discussion
National Weather Service GRAND JUNCTION CO
336 AM MST Mon Feb 12 2018

.SHORT TERM...(Today through Tuesday)
Issued at 322 AM MST Mon Feb 12 2018

As we approached sunrise this morning clouds were thickening and
lowering across the area, especially over SW CO, as the next
winter storm approaches. A closed low will form over the western
Great Basin today and tonight, which will continue to draw
moisture into the area from the south. A strong jet will be over
the area as well adding to the broad uplift that will remain over
the forecast area today and tonight and gradually slide north and
west Tuesday. Have continued the winter weather products in effect
and expect widespread precipitation, especially mountain snow,
for the next 24 hours.

.AVIATION...(For the 12Z TAFS through 12Z Tuesday morning)
Issued at 322 AM MST Mon Feb 12 2018

VFR conditions will last at most TAF sites for a short time today.
At 3 AM MST CIGS were lowering over SW CO and SE UT as the next
winter storm approaches from the west. CIGS below ILS breakpoints
should reach KDRO by about 15Z and spread north and east
throughout the day, reaching KGUC and KGJT by 19Z. ILS CIGS should
develop over KRIL, KEGE, KASE and KHDN by 22Z. Periods of MVFR
and IFR CIGS and vsbys are possible at all TAF sites through 12Z
Tue and this storm moves through. Mountains will be obscured as



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