FXUS63 KABR 240834 AFDABR Area Forecast Discussion National Weather Service Aberdeen SD 334 AM CDT Fri Oct 24 2025 .KEY MESSAGES... - Broad coverage of gusty southerly winds over central and northeastern South Dakota is expected Sunday, with gusts reaching 30 to 40 miles per hour. - Rain returns Monday morning through Tuesday, with the highest chances of 40-60% during the day Monday. Northeastern South Dakota into west central Minnesota is expected to see the highest rainfall amounts, with a 30-40% percent chance to see half an inch. && .SHORT TERM /TODAY THROUGH SATURDAY AFTERNOON/... Issued at 334 AM CDT Fri Oct 24 2025 Not much for impactful weather in the short term period. A tightening pressure gradient across the region today will bring increasing southerly breezes (east of the Missouri River) under mostly sunny skies. Generally anticipating the strongest gusts from the south to be 20-30mph from the James valley eastward into the Coteau, which also lines up with the placement of strongest low- level winds (850mb) around 30 knots. Looking at above normal temperatures (60s) as well with 850mb temps around +6C to +11C across the region. With a bit warmer air mass aloft in place tonight compared to previous nights, and that fact that we'll keep light southerly winds in place for most areas, lows look to be a bit warmer and should stay above freezing. One thing to watch overnight will be potential for stratus racing northward across eastern SD. Several low-level cloud cover products, aviation guidance, as well as soundings hint at this. The increase in sky cover is reflected in the grids/forecast. Winds begin to increase more on Saturday as southerly gusts reach 25 to 35 mph for many locations, highest across central SD. 850mb temps rather comparable to Friday, so once again looking at highs in the 60s across the region. Although, will have to keep an eye on how long any potential stratus sticks around into the day on Saturday and if this has an effect on temperatures. && .LONG TERM /SATURDAY EVENING THROUGH THURSDAY/... Issued at 334 AM CDT Fri Oct 24 2025 Saturday evening through Sunday there will be an upper-level ridge to the east of SD, which will support a high surface pressure over the Great Lakes. At the same time, a negatively tilted upper-level trough to the west will support a low surface pressure developing in southern Saskatchewan. This then leads to a tight pressure gradient over central and eastern SD, and prompt the development of a low level jet over the state. Winds will increase through the day Sunday as strengthening lapse rates help to bring the stronger winds from the jet to the surface. Winds are forecast to gust up around 35- 40mph Sunday afternoon over area east of the Missouri River. Currently these winds look to be weaker than the criteria for wind advisory, but the potential for an advisory will continue to be watched. While the winds are forecast to be relatively strong, the relative humidity values over the area are forecast to be around and above 45%, which will help to reduce the fire danger. Sunday evening into Monday morning, the models are forecasting a cold front to move through central and eastern SD. There are some variations in the models for when showers start to develop along the front, with some having showers develop Sunday night over central SD and other start Monday morning over eastern SD. Another frontal boundary is then forecast to move into the area again at some point Monday into Tuesday, leading to another round of showers moving through the state. There is a 40-60% chance for greater than a quarter of an inch of rain to occur during the 48hrs from Sunday evening to Tuesday evening, with the highest chances over northeastern SD and west central MN. There is a 20-40% chance for greater than a half inch of rain during the same time over central and northeastern SD. In addition to precipitation, the fronts will help move cold air into central and eastern SD, which will lead to around normal temperatures for this time of the year through the week. && .AVIATION /06Z TAFS THROUGH 06Z FRIDAY/... Issued at 1233 AM CDT Fri Oct 24 2025 Terminals KABR,KATY,KPIR,KMBG VFR conditions are forecast through the TAF period. && .ABR WATCHES/WARNINGS/ADVISORIES... SD...None. MN...None. && $$ SHORT TERM...TMT LONG TERM...12 AVIATION...TMT