083
FXUS63 KGID 271156
AFDGID

Area Forecast Discussion
National Weather Service Hastings NE
656 AM CDT Thu Jul 27 2017

...Multi-Day Reprieve from Summer Heat and Oppressive Humidity
has Arrived with Daytime Temps Fcst to Average Slightly Cooler
than Normal the Next Svrl Days...

.SHORT TERM...(Today and tonight)
Issued at 656 AM CDT Thu Jul 27 2017

Aloft: Overnight AMDAR (aircraft) winds and WV imagery showed a
subtropical high over the TX Panhandle and it encompassed the center
of the CONUS. Trofs were along both coasts. Benign wx is expected
here thru tonight as the high remains in place and shortwave trofs
orbit around its Nrn periphery.

Surface: The cool front that passed thru the CWA yesterday
extended from IL-MO-Srn KS-TX Panhandle. High pres was over the
Nrn Plns. The front will cont sagging deeper into the S thru
tonight. Meanwhile...the high will gradually advance into the
GtLakes.

Today: There is still quite a bit of cirroform debris cloudiness
wafting into the area from overnight tstms over CO. Some patches
of post-frontal stratus and mid-lvl altocu also existed. We
should see a gradual decrease in cloudiness today from N-S...but
FEW-SCT CU should develop with daytime heating E of Hwy 183.

High temps will dramatically differ from most of the rest of this
month...3-7F below normal. This will be the coolest day we`ve
seen in the absence of OVC/precip since early the first wk of
July.

Dwpts will drop into the upr 50s-low 60s in many locations...and
do no worse than mid 60s in most locations. This will be a
refreshing interruption to the oppressive humidity of late over
S-cntrl Neb. Locations along Hwy 81 will still be in the upr 60s
though.

Tonight: M/clear. A great night for opening up the windows with
lows in the low-mid 60s...and even some upr 50s in the Dawson
County and in/near the Loup Rvr Vlys.

Conds will be favorable for development of patchy fog over most
of S-cntrl Neb N of Hwy 6 toward dawn. Winds will be light and
temps are fcst to radiate to or just past the cross-over temps per
the UPS method.


.LONG TERM...(Friday through Wednesday)
Issued at 343 AM CDT Thu Jul 27 2017

The majority of the forecast has a couple of main themes. 1.
Cooler temperatures than what were seen the past few weeks and 2.
Sporadic precipitation chances.

1. The upper level flow becomes more northwesterly over the
central CONUS and stays that way through the remainder of the
forecast. This helps to keep temperatures slightly cooler...to
near normal for the area. Highs through the forecast are in the
80s with light winds. Normals for late July/early August are in
the upper 80s.

2. Outside of tomorrow during the day, the forecast is littered
with chances for precipitation through mid next week. Confidence
is fairly low overall with how any day/night will evolve regarding
precipitation potential. However, being in upper level
northwesterly flow...any small disturbance (and there are a number
of them) that drops down across the area as it moves into the
trough over the East could help to fire off showers or
thunderstorms. Think more days will be dry for most, with some
areas getting a chance at precipitation. As the day/night nears,
smaller scale features with the disturbance will help to narrow
precipitation potential, so stay tuned to the forecast for
updates.

&&

.AVIATION...(For the 12Z KGRI/KEAR TAFS through 12Z Friday)
Issued at 656 AM CDT Thu Jul 27 2017

Significant Wx: MVFR fog possible after 08Z.

Today: VFR. Multi-layered SCT clds this morning with the lowest
2-3K ft near EAR...then FEW CU should develop this afternoon. NE
winds around 10 kts. Confidence: High

Tonight: VFR to start with CU dissipating by 00Z. Some MVFR fog
should develop after 08Z. Lgt E winds become lgt and vrbl.
Confidence: High

&&

.GID WATCHES/WARNINGS/ADVISORIES...
NE...None.
KS...None.
&&

$$

SHORT TERM...Kelley
LONG TERM...Billings Wright
AVIATION...Kelley