Area Forecast Discussion
Issued by NWS Bismarck, ND

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469
FXUS63 KBIS 182355
AFDBIS

Area Forecast Discussion
National Weather Service Bismarck ND
555 PM CST Sat Nov 18 2017

.UPDATE...
Issued at 531 PM CST Sat Nov 18 2017

Bumped up sky cover just a little this evening. Otherwise no
changes other than populating latest sensible weather elements and
interpolating to early evening values.

&&

.SHORT TERM...(This evening through Sunday)
Issued at 344 PM CST Sat Nov 18 2017

Quiet weather tonight as Canadian high pressure continues a
southeast slide across North Dakota. The high quickly weakens as a
surface warm front begins to push into the southwest, where above
average lows are expected. The warm front will quickly progress
northeastward across the state through Sunday morning with an
apparent stall as it approaches the northeast corner. Warmer air
will filter into the state behind the front though it will
struggle to reach northeast areas. Highs for Sunday will range
from the lower 50s in the southwest, to the upper 20s in the
northeast corner of the CWA.

.LONG TERM...(Sunday night through Saturday)
Issued at 344 PM CST Sat Nov 18 2017

Potential for a wintry mix Wednesday and prevailing above average
temperatures highlight the extended forecast.

Warmer temperatures will remain into Monday before a clipper fast
tracks through the area Monday night into Tuesday. No
precipitation is expected though breezy conditions will develop
and temperatures will be much cooler Tuesday. Ridging builds over
the Northern Plains Wednesday through Friday bumping temperatures
back above average. Though a baroclinic zone will create a
northeast-to-southwest temperature gradient across the state.
Another quick moving clipper is projected for Wednesday bringing
chances for a wintry mix for much of western and central ND,
possibly impacting holiday travel. The 12Z GFS/ECMWF provide good
agreement on a swath a QPE over much of ND.

&&

.AVIATION...(For the 00Z TAFS through 00Z Sunday evening)
Issued at 531 PM CST Sat Nov 18 2017

VFR conditions are expected through the 00Z TAF period with a
light west to southwest flow.

&&

.BIS WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

$$

UPDATE...TWH
SHORT TERM...AC
LONG TERM...AC
AVIATION...TWH



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