Area Forecast Discussion
Issued by NWS Rapid City, SD

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FXUS63 KUNR 270818
AFDUNR

Area Forecast Discussion For Western SD and Northeastern WY
National Weather Service Rapid City SD
218 AM MDT Tue Jul 27 2021

.DISCUSSION...(Today Through Monday)
Issued at 215 AM MDT Tue Jul 27 2021

Hot upper ridge remains in place today with low level thermal
profiles peaking today/Wednesday. Temperatures near
guidance...though thick smoke layer aloft may keep temperatures
from reaching full potential. Ridge begins its westward shift
Wednesday, allowing cold front to slip into northeast
Wyoming/northwest South Dakota Wednesday morning...then through
the remainder of the area by Wednesday evening. Post frontal
thunderstorms possible late Wednesday/Wednesday night. Ridge
amplifies over the Rockies going into the weekend, with northwest
flow over the Northern Plains. This will result in near average
temperatures along with a daily chance of thunderstorms.

&&

.AVIATION...(For the 06Z TAFS Through 06Z Tuesday Night)
Issued At 1131 PM MDT Mon Jul 26 2021

VFR conditions are expected through the TAF period.

&&

.UNR WATCHES/WARNINGS/ADVISORIES...
SD...Heat Advisory until midnight MDT /1 AM CDT/ Wednesday night for
     SDZ001-002-012>014-025>027-030>032-041>044-046-047-049-
     072>074.

WY...Heat Advisory until midnight MDT Wednesday night for WYZ054>056-
     058-071.

&&

$$

DISCUSSION...7
AVIATION...Dye


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