Area Forecast Discussion
Issued by NWS Goodland, KS

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049
FXUS63 KGLD 212058
AFDGLD

Area Forecast Discussion
National Weather Service Goodland KS
258 PM MDT Tue Mar 21 2017

.SHORT TERM...(Today through Thursday)
Issued at 258 PM MDT Tue Mar 21 2017

A weather disturbance is forecast to move across the area this
evening bringing a slight chance of rain to much of the area. This
should exit the area a few hours before sunrise Wednesday
morning. Otherwise expect a mostly cloudy to cloudy sky with low
temperatures in the low to mid 30s. Winds generally from the east
and southeast at 10 to 20 mph. Gusts near 25 mph expected along
and west of the CO/KS border.

South to southeast winds, strongest along and west of the CO/KS
border continue through the day Wednesday with gusts around 30 mph
expected. Clouds expected to be of the high variety for most of the
area. 850mb temperatures warm about 2C to 7C across the area but the
east to southeast wind isnt favorable for great warming despite the
warming aloft. Currently have high temperatures ranging from the low
to mid 50s across the east (McCook to Gove and points east) with
low to mid 60s along and west of the CO/KS border.

.LONG TERM...(Friday through Monday)
Issued at 258 PM MDT Tue Mar 21 2017

The extended period looks to be active with multiple chances of
measurable precipitation.

Thursday-Thursday night...Upper level trough with closed low height
center transverses the Rockies and approaches the area on Thursday.
Models have come into better agreement on the 12Z runs, keeping the
closed low to the south of our CWA as it progresses to the east.
Dryline setup on Thursday will determine where focus for potentially
strong to severe storms will occur. SPC currently has our entire
area in the Marginal highlight for Day 3. Looking at 12Z model
soundings, current thinking is that the dryline will set up near or
just east of the CO/KS border placing the best chance of
thunderstorms in the eastern half of our area late Thursday
afternoon into Thursday evening, with threats of damaging winds and
large hail possible. Our CO counties will need to be monitored for
fire weather conditions during the afternoon. Chose not to issue a
Fire Weather Watch on this shift due to the uncertain setup of the
aforementioned dryline. Overnight, the entire CWA should see rain.

Friday-Saturday...Vertically stacked low moves into and across
central Kansas through the daytime Friday. Definite to likely PoPs
through the day across most of the region. Chance for a thunderstorm
or two as the surface low and associated front move through the
area. Rain should continue into Friday night with a slight chance of
a changeover to snow early Saturday morning. Current forecast shows
QPF values of 0.75-1.00 in. across the CWA for Thurs-Sat.

*It should be mentioned that the 12Z NAM shows strong CAA as the low
passes by the area, changing the precip on the backside of the low
to all snow during the day on Friday, resulting in snow accumulation
along the CO/KS border. For now, that run is being treated as an
outlier.

Sunday-Tuesday...Another closed upper low approaches the CWA Sunday
bringing us another chance of rain. Temps should be near normal.
Another disturbance enters the region Tuesday into Wednesday. Models
differ on strength and timing, but most agree on bringing the area
more measurable precip.

&&

.AVIATION...(For the 18Z TAFS through 18Z Wednesday afternoon)
Issued at 1145 AM MDT Tue Mar 21 2017

KGLD and KMCK, vfr conditions expected through the period with
winds generally from the east and southeast occasionally gusting
20 to 25kts. There will be a period from 09z through the rest of
the period where cigs may reach mvfr category at both terminals.
For now have them vfr but its something to watch in later
forecasts. A few rain showers are expected to move across both
terminals in the 04z-10z timeframe.


&&

.GLD WATCHES/WARNINGS/ADVISORIES...
KS...NONE.
CO...NONE.
NE...NONE.
&&

$$

SHORT TERM...024
LONG TERM...JBH
AVIATION...99



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