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Forecast Discussion for Aberdeen, SD
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160 FXUS63 KABR 101141 AAA AFDABR Area Forecast Discussion...UPDATED National Weather Service Aberdeen SD 641 AM CDT Wed Jun 10 2026 .KEY MESSAGES... - There is a Marginal Risk, level 1 out of 5, for isolated severe storms over the eastern portions of Big Stone and Traverse Counties in Minnesota. Main threats include large hail, one inch in diameter, and 60 mph wind gusts. - Cooler temperatures arrive for the rest of the week and into the weekend. Highs beginning Thursday will be in the mid 70s, near- normal to just below normal for this time of year. && .UPDATE... Issued at 636 AM CDT Wed Jun 10 2026 The aviation discussion has been updated for the 12Z TAFS. && .DISCUSSION... Issued at 220 AM CDT Wed Jun 10 2026 As of 2am, the line of shower and thunderstorms continue along and east of the Sisseton Hills tracking east/northeast at about 40 mph. Wind gusts between 70-90 mph were reported across the CWA, with the highest wind gusts near Altamont shortly before 1am. There were also several funnel cloud spottings over Pierre as well as wind damage reports over portions of east central SD. Wake low pushing through behind the line of storms over portions of northeastern SD as gusts have been between 45-55 mph within the post stratiform rain. Due to this, issued a short fuse Wind Advisory for Roberts/Grant/Deuel through 08Z. By 12Z, the cold front will extend north to south along the Sisseton Hills with the negative tilted shortwave`s axis extending from southeastern MT through northwestern NE. Embedded shortwave energy looks to bring the chance of elevated spotty convection over north central SD into ND this morning where it will track east/northeast over portions of northeastern SD into western MN late morning and through this afternoon per CAMs. Much of the better instability will lie east of our CWA closer to the front and low. However, a few storms could become severe over the far portions of west central MN per HRRR. Therefore, the SPC has a Marginal Risk, level 1 out of 5, for isolated severe storms over the eastern portions of Big Stone and Traverse Counties in Minnesota this afternoon. Main threats include large hail, one inch in diameter, and 60 mph wind gusts. Instability will be weak for this area with CAPE between 1000- 1500j/kg midday through the early afternoon and diminishing to 500 j/kg or lower by by the late afternoon. Any lingering storms will be out of the CWA by this evening. Additional energy may bring spotty rain showers (possibly a rumble of thunder) over central SD overnight with pops 25% or less. No severe weather expected. Through Thursday a closed low develops and will track across Canada/Northern Plains with another shortwave moving across the Central and Northern Plains through early Friday. A surface low developing out of Colorado and tracking into the Central Plains along with embedded energy aloft over MT/ND/SD (and cold front) will both bring additional chances of rain (weak thunderstorms) over the CWA Thursday morning through Thursday afternoon. Again, no severe weather expected. Gusty winds expected by the afternoon with potential gusts of 30 to 45 mph, highest over central SD. Luckily a period of dry conditions move in Thursday evening through Friday. Overall dry for the weekend with the exception of areas along and west of the Mo River Saturday night through Sunday night that could see additional light moisture. Cooler air moves in behind the cold front with highs in the 70s to the lower 80s west of the Sisseton Hills (still could reach the mid 80s east of here). Overnight lows in the 50s with much cooler highs for Thursday in the 70s. Warmup Friday back in the 80s and behind the cold front highs for the weekend will be much cooler about 5-10 degrees below average. && .AVIATION /12Z TAFS THROUGH 12Z THURSDAY/... Issued at 636 AM CDT Wed Jun 10 2026 Terminals KABR,KATY,KPIR,KMBG VFR conditions are expected to remain the prevailing conditions at all terminals through this forecast set. Increasing west to northwest winds will range between 20-30 kts by late morning through the afternoon. Best chance to see any precipitation will be at KMBG this morning with -SHRAs through mid morning. Although, this activity is expected to spread each by late morning into the afternoon, wasn`t as confident in including mention of this at KABR/KATY at this time. && .ABR WATCHES/WARNINGS/ADVISORIES... SD...None. MN...None. && $$ UPDATE...Vipond DISCUSSION...MMM AVIATION...Vipond |
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NWS Aberdeen, SD (ABR) Office Forecast Discussions.
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