869
FXUS63 KUNR 211803
AFDUNR

Area Forecast Discussion For Western SD and Northeastern WY
National Weather Service Rapid City SD
Issued by National Weather Service North Platte NE
1202 PM CST Thu Nov 21 2024

.KEY MESSAGES...

- Dry through Saturday. Mild temperatures for much of the area.

- Breezy and cooler Sunday with a chance(20-30%) of light snow.

- Unsettled with below average temperatures heading into
  Thanksgiving Holiday.

&&

.DISCUSSION...(Today Through Wednesday)
Issued at 140 AM MST Thu Nov 21 2024

Current surface map places high pressure across the Northern
Plains. A few high clouds across the area with temperatures in the
20s. Mild and dry conditions expected through Saturday with
upper level ridge across the area. Weak/shallow cold front
expected to slip into northwestern South Dakota on Friday, then
lift back northward on Saturday. Forecast soundings indicated some
potential for low stratus north of the front which may keep
temperatures a bit cooler than current forecast.

Upper flow becomes zonal Sunday with decent shortwave tracking
across Montana/North Dakota. Cold front drops through the area
early Sunday. 3-5mb/3hr pressure rises and robust cold advection
will result in gusty northwest winds. May be a bit of light
snow/flurries across the area with little to no accumulation. Cold
temperatures continue through next week. Embedded impulses in
flow may bring some chances for light snow with only minor
accumulations expected at this time.

&&

.AVIATION...(For the 18Z TAFS Through 18Z Friday)
Issued At 1202 PM CST Thu Nov 21 2024

Expect VFR conditions over the next 24 hours with scattered high
clouds around 25000 FT AGL. Winds will be southerly this afternoon
at 10 to 15 KTS, becoming light this evening. Northerly winds
will develop Friday morning and will generally be under 10 KTS.


&&

.UNR WATCHES/WARNINGS/ADVISORIES...
SD...None.
WY...None.
&&

$$

DISCUSSION/KEY MESSAGES...7
AVIATION...CLB