


Area Forecast Discussion
Issued by NWS Aberdeen, SD
Issued by NWS Aberdeen, SD
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765 FXUS63 KABR 291145 AAA AFDABR Area Forecast Discussion...UPDATED National Weather Service Aberdeen SD 645 AM CDT Sun Jun 29 2025 .KEY MESSAGES... - Showers and thunderstorms moving through central SD early this morning may bring wind gusts around 60-70mph. More widely scattered showers/storms late afternoon into early evening, but with low severe storm potential. - Less humid conditions by this afternoon lasting into Monday, with precipitation chances decreasing as well. - Heat and humidity return by the end of the week with highs approaching 90 once again and dewpoints back into the 60s. && .UPDATE... Issued at 638 AM CDT Sun Jun 29 2025 Aviation discussion updated below for the 12Z TAFs. && .DISCUSSION... Issued at 440 AM CDT Sun Jun 29 2025 Next mid-level shortwave energy is moving eastward across WY and generating showers and thunderstorms across western/central SD. Expect this activity to continue moving eastward through the early/mid morning hours, with wind gusts around 50 mph at times in stronger cores. A bit uncertain how long this complex will hold and how much, if any, decrease in areal coverage we`ll see as it moves across the state. Will likely need to make further PoP adjustments over the next few hours. After this wave moves out later this morning, yet another piece of energy further upstream in the mid- level flow looks to move into the area. CAMs are generating additional shower/thunderstorm activity moving into central SD late afternoon and pushing eastward across the region into the evening hours. Although, this appears to be more widely scattered in nature, and again we`ll be looking at low severe storm potential with a more stable atmosphere in place today. On Monday, mid-level flow becomes northwesterly as drier dewpoints in the 50s overspread the area. Surface high pressure builds into the region which will lead to mostly dry conditions across the area. Although, will have to watch the far eastern CWA for shower potential closer to the main shortwave energy further east. Environment is characterized by steep lapse rates out that way as well. Next opportunity for precipitation comes Tuesday night as a low- level jet gets going again across the Northern Plains. Surface boundary also begins pushing northward into southern SD. && .AVIATION /12Z TAFS THROUGH 12Z MONDAY/... Issued at 638 AM CDT Sun Jun 29 2025 Terminals KABR,KATY,KPIR,KMBG An area of SHRA/TSRA continues to move eastward across the region, possibly affecting the TAF sites through mid/late morning. MVFR CIGs are also affecting KATY and it`s unclear how long these stick around, but have them going away mid morning. Otherwise, mostly VFR conditions should materialize by this afternoon, with potentially another round of more widely scattered -SHRA/-TSRA by late afternoon into the evening hours. Confidence in this is fairly low, but handled it with a PROB30 for at least KPIR/KMBG for the time being. && .ABR WATCHES/WARNINGS/ADVISORIES... SD...None. MN...None. && $$ UPDATE...TMT DISCUSSION...TMT AVIATION...TMT