Select NOAA-NWS Forecast Office Text Products
(Product availability varies with seasons, forecast office, and weather.)
Forecast Discussion for Aberdeen, SD
To Select Another NWS Office Click on Map or Choose from List
|
| Select Forecast Office: | Select Product: |
456 FXUS63 KABR 200753 AFDABR Area Forecast Discussion National Weather Service Aberdeen SD 253 AM CDT Sun Sep 20 2026 .KEY MESSAGES... - Low clouds will persist into Monday and may result in periods of reduced visibility along higher terrain. - Steady showers move into central SD today and make it as far east as parts of the James and Big Sioux Valleys tonight. Rain tapers off from north to south on Monday. - Temperatures will remain below seasonal normals the next few days before returning to near normal toward the middle of the week. && .DISCUSSION... Issued at 252 AM CDT Sun Sep 20 2026 Weak shortwave ridging aloft across eastern SD/NE will shift east this morning as an upper low over western WY slowly meanders east into parts of western SD and NE by the end of the day. Low stratus and some patchy fog will be possible in some areas through the morning. Increasing chances for steady showers will make their way into central SD later this morning into the afternoon as that upper low slowly shifts east. This rain is progged to slowly move east as far as the James Valley and parts of the Big Sioux Valley tonight into early Monday. This system will slowly move east along the SD/NE border tonight through Monday. The rain will gradually taper off from north to south on Monday. Rainfall amounts are expected to be highest across parts of central and south central SD where between a half inch and three-quarters of an inch will be possible today through the end of the event on Monday. Temperatures will remain below normal the next couple days as the low stratus persists underneath this disturbance. Weak ridging aloft will attempt to work into the region on Tuesday but gets shunted more east into the western Great Lakes. Nevertheless, the overcast skies should break giving way to more sunshine and drier conditions. Temperatures will begin to modify closer to normal. Even warmer conditions are expected mid to late week as southwest flow aloft re-establishes itself across the Northern Plains. With another passage of a shortwave trough through the region Wednesday into Thursday the next round of showers and thunderstorms are expected. By the end of the period, upper ridging is expected which will help return drier conditions to the area along with temperatures at or slightly above normal late in the week. && .AVIATION /06Z TAFS THROUGH 06Z MONDAY/... Issued at 1225 AM CDT Sun Sep 20 2026 Terminals KABR,KATY,KPIR,KMBG Mainly MVFR/IFR ceilings will continue through much of the TAF period. The exception is KABR, which will continue to experience VFR cigs at times per gaps in the lower clouds. Patchy fog is expected to develop near daybreak at KABR/KATY, with light rain moving into central SD (KPIR/KMBG) around and after 11Z today. && .ABR WATCHES/WARNINGS/ADVISORIES... SD...None. MN...None. && $$ DISCUSSION...Vipond AVIATION...MMM |
Previous Forecast Discussions may be found at
NWS Aberdeen, SD (ABR) Office Forecast Discussions.
(Click 'Previous Version' there to view past versions successively.
Some may differ only in time posted.)
Products Courtesy of NOAA-NWS
NWS Information Parsing Script by Ken True at Saratoga Weather - WFO and Products Scripts by SE Lincoln Weather.
Mapping by Curly at Michiana Weather and by Tom at My Mishawaka Weather.