Area Forecast Discussion
Issued by NWS Aberdeen, SD
Issued by NWS Aberdeen, SD
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961 FXUS63 KABR 241737 AFDABR Area Forecast Discussion National Weather Service Aberdeen SD 1237 PM CDT Fri Apr 24 2026 .KEY MESSAGES... - High temperatures 5 to 15 degrees below normal expected through the middle of next week. Highs are expected to be in the upper 40s to 50s through that period. - Widespread rain expected Sunday and Monday. 1 to 2 inches of rain is forecast east of a line from Eureka to Murdo with heaviest amounts east of the James Valley. && .DISCUSSION... Issued at 1233 PM CDT Fri Apr 24 2026 Upper troughing will dominate through the middle of next week. Light snow in the Black Hills will spread east this evening in a waa band. Temperatures along and south of Hwy 212 should support all rain as the precip moves into central SD. Looking at a tenth to half an inch of rain with this system, heaviest farther south along I-90. Lighter amounts are possible all the north to the ND border, but only 20 to 30 percent chance of any rain reaching that far north at all. More widespread, steady moderate rain is expected with the next system Sunday and Monday especially east of the James Valley where moisture will be enhanced on a warm nose. Can`t rule out an embedded thunderstorm or two with increasing instability near that warm nose, either. Over an inch of rain is expected east of a line from Eureka to Murdo with up to 2 inches possible east of a line from Britton to Miller. All of the rain will help green up and reduce fire concerns and dust. Temperatures are expected to remain 10 to 15 degrees below normal into the middle of next week under the persistent upper troughing. Highs will top out in the 50s through Thursday. && .AVIATION /18Z TAFS THROUGH 18Z SATURDAY/... Issued at 1233 PM CDT Fri Apr 24 2026 Terminals KABR,KATY,KPIR,KMBG VFR conditions are expected through this evening. MVFR cigs move into KPIR and KATY after 6z. Rain is expected at KPIR by 0z and may occasionally reduce vsby to MVFR in heavier showers. && .ABR WATCHES/WARNINGS/ADVISORIES... SD...None. MN...None. && $$ DISCUSSION...20 AVIATION...20