Area Forecast Discussion
Issued by NWS Bismarck, ND

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FXUS63 KBIS 260806
AFDBIS

Area Forecast Discussion
National Weather Service Bismarck ND
306 AM CDT Sun Mar 26 2017

.SHORT TERM...(Today and tonight)
Issued at 305 AM CDT Sun Mar 26 2017

The main problems in the short term period surround light
precipitation chances today along with clouds and temperatures.

Early morning radar mosaic shows most returns stretching from
southwest North Dakota, though the central part of the state. Have
not seen very many locations report precipitation accumulations
with very dry air in the mid and low levels of the atmosphere
keeping much of the precipitation aloft in the form of virga.
Short term models (HRRR, RAP) suggests the main band of
precipitation / radar returns should diminish this morning and
eventually shrink south into South Dakota. Will continue to carry
mainly chance pops for light rain this morning.

Satellite imagery this morning shows quite a bit of mid and high
level clouds which are helping mask the north and west extent of
the stratus/fog. Observations show the stratus has made it into
Jamestown, and the HRRR would suggest it will spread north and
west a bit more before its progress is halted. Will generally
follow the HRRR and SREF`s idea which keeps the stratus in place
much of the morning across the James River Valley before gradually
eroding it from west to east. This could have some impact on
temperatures, so opted to bring highs a little closer to the more
conservative guidance where the stratus may linger.

.LONG TERM...(Monday through Saturday)
Issued at 305 AM CDT Sun Mar 26 2017

The longer term period will feature a progressive H5 flow with
periodic chances for light precipitation. The GFS and ECMWF
suggest the next best chance of light precipitation will come
Tuesday night into Wednesday, though the NAM keeps the chances
south of North Dakota. Temperatures through the period should
generally be a little above normal with highs in the 40s and 50s
and lows in the 30s.

&&

.AVIATION...(For the 06Z TAFS through 06Z Sunday night)
Issued at 305 AM CDT Sun Mar 26 2017

Patchy fog has developed early this morning over parts of the
James River Valley, bringing localized IFR conditions. The fog
will diminish this morning. Light rain is possible, mainly over
southern areas early this morning. Localized MVFR visibility will
be possible in the light rain. Otherwise, VFR conditions will
prevail.

&&

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

$$

SHORT TERM...CK
LONG TERM...CK
AVIATION...AJ



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