Hulett, Wyoming Weather Forecast Discussion

442
FXUS63 KUNR 111014
AFDUNR
Area Forecast Discussion For Western SD and Northeastern WY
National Weather Service Rapid City SD
414 AM MDT Thu Sep 11 2025
.KEY MESSAGES...
-Seasonally very warm through Friday
-Isolated showers and thunderstorms through Friday with a good
 chance of widespread rain Friday night into the weekend
&&
.DISCUSSION...(Today Through Wednesday)
Issued at 336 AM MDT Thu Sep 11 2025
09Z upper level anaylsis has the forecast area under southwest
flow, with ridge to the east and large closed low to the west.
Shortwave energy in southwest flow continues to bring waves of
isolated to scattered rain showers and thunderstorms through the
forecast area overnight. At the surface, low pressure resides
across eastern Montana, with warm frontal boundary across ND, and
cool frontal boundary extending southwest into Wyoming. Ahead of
the low, broad southeast boundary layer flow is in place, with
very mild temperatures across the forecast area at 3 AM - in the
60s to lower 70s.
Region will remain in disturbed southwest upper flow today with
surface low settling into far southeast Montana and far northwest
SD. With ample moisture and heating today, isolated to scattered
strong to severe storms will be possible across much of the area
late this afternoon and evening, especially in the vicinity of the
surface low and just to the north of the low across southeast
Montana into southwest ND. At this time, there is a Marginal (1
out of 5) risk of severe storms across much of the forecast area,
with a Slight (2 out of 5) risk just to the northwest of the
forecast area in southeast Montana and southwest ND. Hail and
strong gusty winds are the main concern with any storm that
develops today into tonight.
Unsettled southwesterly flow continues into Friday, with isolated
thunderstorms possible. Late Friday, a stronger shortwave ejects
out of the western upper trof/low, bringing widespread rain and
isolated storms to much of the area. Upper trof shifts into the
Rockies on Saturday, with rain continuing across much of the
forecast area. Rainfall totals approach an inch from the Black
Hills into northwestern SD by Sunday morning. Temperatures over
the weekend will fall closer to seasonal averages.
Upper trof lifts north and east of the area Sunday night into
Monday, with weak ridging and drier weather for early next week.
The break in unsettled weather is short-lived, as another upper
trof swings into the Northern Plains for the middle to latter half
of next week.
&&
.AVIATION...(For the 06Z TAFS Through 06Z Thursday Night)
Issued At 1050 PM MDT Wed Sep 10 2025
Predominately south winds will remain gusty, generally up to 25
kts, through around 02Z tomorrow. Isolated thunderstorms will move
across all terminals tomorrow evening with lift from a low
pressure system. VFR conditions will prevail across the airspace
through the TAF period.
AEH
&&
.UNR WATCHES/WARNINGS/ADVISORIES...
SD...None.
WY...None.
&&
$$
DISCUSSION/KEY MESSAGES...15
AVIATION...Herdliska

NWS UNR Office Area Forecast Discussion