Area Forecast Discussion
Issued by NWS Aberdeen, SD
Issued by NWS Aberdeen, SD
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089 FXUS63 KABR 032327 AAA AFDABR Area Forecast Discussion...UPDATED National Weather Service Aberdeen SD 627 PM CDT Mon Jun 3 2024 .KEY MESSAGES... - There is a 30-60% chance of showers and sub-severe thunderstorms this evening through Tuesday. Best chances will be Tuesday morning. Generally, less than a tenth of an inch is expected. && .UPDATE... Issued at 624 PM CDT Mon Jun 3 2024 See updated aviation discussion below. && .SHORT TERM /THIS EVENING THROUGH TUESDAY NIGHT/... Issued at 305 PM CDT Mon Jun 3 2024 A cold front trailing off a Saskatchewan low will bring some showers to the region tonight through Tuesday. Moisture availability is less than impressive so generally expect less than a tenth of an inch for rain, but could be isolated higher amounts with the isolated thunderstorms. An upper trough follows behind the sfc front bringing in caa. The caa is somewhat aborted over SD and stronger over ND, so could see a brief fall or lack of rise in temps Tuesday afternoon before they recover. Although there are differences in the models, can`t completely rule out a few light showers between Hwy 12 and Hwy 14 late Tuesday night on the southern edge of a potent shortwave in the upper trough. For now, kept pops below a precip mention, but may need to add some in as models resolve the timeframe better. && .LONG TERM /WEDNESDAY THROUGH MONDAY/... Issued at 305 PM CDT Mon Jun 3 2024 The long term portion of the forecast will feature mostly dry conditions with near to perhaps slight below average temperatures. The period begins on Wednesday with northwesterly flow aloft with perhaps a secondary frontal boundary sliding southward across the area. The far northeast corner of the CWA has a 15-20% chance of seeing instability showers in the afternoon. The northwesterly flow aloft and dry conditions appears to continue through Friday morning. Friday afternoon through perhaps Saturday, an invented surface trough and frontal boundary may slide southward across the forecast area, bringing a low, under 20% chance of showers and thunderstorms. The probability of seeing 0.05 inches of QPF in a 6 hour period is 10 to 15% per the NBM. The reminder of the period appears mostly dry with perhaps some lee of the Black Hills convection Sunday night. High temperatures may range from the low to mid 70s in northeastern South Dakota and western MN, to the upper 70s and low 80s at times, west of the James River. && .AVIATION /00Z TAFS THROUGH 00Z TUESDAY/... Issued at 624 PM CDT Mon Jun 3 2024 Terminals KABR,KATY,KPIR,KMBG Scattered showers and a few thunderstorms are possible tonight through Tuesday morning. No severe weather is expected. Other than the potential for some MVFR vsbys will any thunderstorms, VFR conditions will prevail across the area tonight and through the day Tuesday. && .ABR WATCHES/WARNINGS/ADVISORIES... SD...None. MN...None. && $$ SHORT TERM...Wise LONG TERM...SD AVIATION...Parkin