textproduct: Aberdeen

KEY MESSAGES

- Light rain/sprinkles, along with gusty northerly winds will subside later this evening and through the overnight hours.

- High temperatures 5 to 15 degrees below normal expected through the middle of the week. Highs are expected to be in the upper 40s to 50s through that period.

UPDATE

Issued at 638 PM CDT Mon Apr 27 2026

Aviation discussion updated below for the 00Z TAFs.

DISCUSSION

Issued at 154 PM CDT Mon Apr 27 2026

A surface low pressure and upper level shortwave will exit the CWA this evening, leaving behind dry, but cool conditions overnight. A surface high pressure will slide southward some tonight, allowing for temperatures to drop into the mid to upper 20s for most locations.

Another shortwave, currently over Nevada, will track northeast tonight, with showers possibly moving into western South Dakota by 12Z Tuesday. Various hi-res models are showing light showers moving into the far southwest CWA, Stanley, Jones, Lyman area mainly after 18Z. The chance of pcpn is 30 to 60 percent. The 12Z HREF probability of seeing 0.01 inches of QPF is 20 to 50 percent, with the highest prob over Jones County. By 0Z Wednesday, the NBM has a broad area of 20 pops, while some CAMS suggests mostly sprinkles embedded within northwest flow aloft.

A stronger shortwave should progress southeastward across the region on Wednesday, bringing a 25 to 45 percent chance for showers, mainly during the afternoon hours. Beyond Wednesday, the weather pattern will feature mainly dry conditions, with high temperatures warming into the 60s for the weekend. The deterministic ECMWF and GFS both suggest an active weather pattern early next week, with additional showers, and the return to below average temperatures.

AVIATION /00Z TAFS THROUGH 00Z WEDNESDAY/

Issued at 638 PM CDT Mon Apr 27 2026

Terminals KABR,KATY,KPIR,KMBG

Areas of MVFR CIGs remaining across the region this evening, mostly in KATY/KPIR at the start of the TAF period. Forecast improvements to VFR later this evening, while north-northwest surface winds also subside. MVFR CIGs are forecast to develop across KPIR Tuesday afternoon, with a chance (PROB30) for -RA.

ABR WATCHES/WARNINGS/ADVISORIES

SD...None. MN...None.