Area Forecast Discussion
Issued by NWS Hastings, NE

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FXUS63 KGID 231155 CCA

Area Forecast Discussion...CORRECTED
National Weather Service Hastings NE
655 AM CDT Wed Aug 23 2017

Corrected last word in first paragraph of the long term

.SHORT TERM...(Today and tonight)
Issued at 408 AM CDT Wed Aug 23 2017

Quiet short term overall as a surface high continues to slip east
and return flow ensues. Moisture will be slow to return as we
eventually as we continue our transition to northwest flow aloft,
while an amplifying upper ridge develops over the Rockies. Enough
moisture may return for a slight chance of thundershowers near
dawn in our far west/northwest, but would be more of a warm-air
advection type scenario if it happens, so no severe weather is

.LONG TERM...(Thursday through Tuesday)
Issued at 408 AM CDT Wed Aug 23 2017

The western ridge will retrograde a bit farther west as it
continues to amplify by weekend, ensuring northwest flow aloft and
vulnerability to subsequent quick moving shortwave energy. This
will keep weather rather unsettled Thursday through Sunday. The
best shot at any severe weather will be Thursday night, and maybe
even Friday to an extent. Storms on Thursday are expected to develop
to the west during the late afternoon and evening and progress
east, being maintained or strengthened by a low-level jet. The
axis of the low-level jet will likely stay far enough west to
prevent much progression of storms east before support for severe
weather largely shuts off. On Friday, we might stand a chance of
more rain over the CWA, but there will be somewhat less support
for severe weather than Thursday.

By Monday, the western ridge should nudge far enough east to
dominate our weather and essentially shut of precipitation
chances, as a backdoor cold front issues in drier air Sunday
night. Temperatures will generally be near to a bit below normal
under this expected pattern, with highs mostly in the lower to mid
80s and lows in the upper 50s to mid 60s for the entire long term


.AVIATION...(For the 12Z KGRI/KEAR TAFS through 12Z Thursday)
Issued at 626 AM CDT Wed Aug 23 2017

VFR conditions are expected through the period with only some
passing high clouds and light southerly winds less than 10 KTS
persisting through the afternoon hours. Late this evening...
expect some LLWS to develop as a LLJ develops across the
region...around or slightly after 24/04Z.




SHORT TERM...Heinlein
LONG TERM...Heinlein
AVIATION...Rossi is the U.S. government's official web portal to all federal, state and local government web resources and services.