Area Forecast Discussion
Issued by NWS Cheyenne, WY

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FXUS65 KCYS 162324

Area Forecast Discussion
National Weather Service Cheyenne WY
524 PM MDT Fri Jun 16 2017

.SHORT TERM...(This evening through Sunday night)
Issued at 235 PM MDT Fri Jun 16 2017

Warm and breezy weather across the CWA this afternoon under a
fairly fast wnw flow aloft. The winds are expected to ease during
the evening. Pretty quiet weather seen for the CWA over the
weekend. Overnight, a weak shortwave will move across the northern
Rockys and into the northern plains early Saturday. This will
push a cold front across the CWA as well as set off some widely
scattered showers and a few storms mainly later this evening into
Saturday morning. Any pcpn should end by late Saturday afternoon
as the shortwave moves out of the region. Max temps will be about
10-15 degrees cooler Saturday, especially over the plains with a
bit of a breezy northwesterly wind. Cool Saturday night then dry
and a little warmer Sunday with the CWA residing under dry
northwesterly flow aloft.

.LONG TERM...(Monday through Friday)
Issued at 235 PM MDT Fri Jun 16 2017

The 12Z medium range models and ensembles prog the southwestern
CONUS upper ridge to amplify early next week, with northwest flow
aloft over the CWA. The ridge flattens/deamplifies by Wednesday
as faster zonal flow shifts southward into the north central
CONUS. With the storm track poised north of the CWA through most
of next week and large scale subsidence in place, chances for
measurable precipitation will be slim. Tuesday and Wednesday will
be the warmest days of the week as 700mb temperatures peak in the
mid-upper teens Celsius, resulting in daytime highs in the 80s
and 90s. Models have delayed the arrival of a cold front until
Friday, with the potential for late day convection. Most afternoons
will be breezy, especially across southeast WY.


.AVIATION...(For the 00Z TAFS through 00Z Saturday evening)
Issued at 521 PM MDT Fri Jun 16 2017

Wyoming TAFS...VFR. Wind gusts to 39 knots through 03Z. Wind gusts
to 35 knots after 15Z Saturday.

Nebraska TAFS...VFR. Wind gusts to 35 knots after 15Z Saturday.


Issued at 235 PM MDT Fri Jun 16 2017

Fire weather concerns are expected to remain low into at least
early next week. Min RHs will be higher over the weekend due to
cooler temperatures behind a cold front that will pass across late
tonight and Saturday morning. The only chance for some rain will
be later tonight into Saturday in association with that cold
front and a weak disturbance.




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