textproduct: Aberdeen

KEY MESSAGES

- Scattered showers and isolated thunderstorms will remain over northeastern SD and west central MN through this evening. Less than a tenth of an inch of rain is expected, with localized areas under the heaviest showers potentially seeing above a tenth of an inch.

- Lows tonight and highs Friday, and again Tuesday and Wednesday of next week will be around 10 degrees below normal.

- Winds Monday afternoon will gust near 30-40mph, strongest over northern SD.

UPDATE

Issued at 633 PM CDT Thu Apr 30 2026

Aviation discussion updated below for the 00Z TAFs.

DISCUSSION

Issued at 244 PM CDT Thu Apr 30 2026

The 19Z Satellite imagery is impressive this afternoon, with a wide swath of cumulus clouds becoming glaciated over the northern half of SD. Small hail and a few lightning strikes will remain possible in the strongest small/weak storms. We're also noting the embedded shortwave rotation to weak surface low across eastern ND that has been persistent through the morning and early afternoon hours. This will help enhance the clouds over far southern ND and northeastern SD through the early evening hours - keeping precipitation going a bit longer. The weak low will shift over our eastern SD/MN border by 00Z, and mainly to our south-southeast by 06Z Friday, with precipitation coming to an end over our area.

The 1025mb surface high over southern Saskatchewan/Manitoba will slide across much of the forecast area by 09Z Friday with a ridge remaining over eastern SD through 03Z Saturday. The result will be, that after 2 days of scattered to isolated shower activity, Friday looks to be dry. After lows in the upper 20s to near 30 degrees, highs will again be in the 50s. Winds will be light, with peak gusts around of 15-20mph from south central to northeastern South Dakota and west central Minnesota Friday afternoon. The Grassland Fire Danger Index values will be low Friday.

Warm air advection will take hold Friday night/Saturday morning behind a warm front as the main low stretches across southern Canada into northeastern MT. The low will cross southern Manitoba/northern ND 12-18Z Saturday before sliding mostly into eastern ND Saturday afternoon/evening and exiting into central MN Saturday night. This will be our next chance of precipitation (currently only around a 20% chance for 00-06Z Sunday over far northeastern SD and west central MN).

High temperatures will rise into the 60s to low 70s this weekend and into Monday.

A 20-30% chance of showers will return Tuesday. We'll see how the trend continues with the timing of the next cold front Monday- Tuesday of next week. Tuesday and Wednesday will be the coolest days, returning back into the 50s once again (or around 10 degrees below normal for this time of year).

AVIATION /00Z TAFS THROUGH 00Z SATURDAY/

Issued at 633 PM CDT Thu Apr 30 2026

Terminals KABR,KATY,KPIR,KMBG

VFR conditions are forecast through the TAF period. Winds will subside after sunset. By Friday afternoon, winds are forecast to be from a north-northwest direction.

ABR WATCHES/WARNINGS/ADVISORIES

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