textproduct: Topeka

KEY MESSAGES

-Patchy dense fog could occur for a few hours early this morning.

-Dry weather and near average temperatures are expected for the rest of this week.

-Warmer conditions settle back in this weekend with breezy south winds.

DISCUSSION

Issued at 316 AM CDT Wed Aug 26 2026

Conditions are favorable for at least patchy fog development early this morning, however, cirrus clouds from an MCS in southwest KS could prevent widespread dense fog formation. Any fog that develops should burn off by 15Z and then we will be left with sunny skies and light north winds as a sfc ridge moves in behind a cold front. Temperatures should top out around 90 degrees this afternoon with slightly lower dew points than the last few afternoons. Tonight, a mid-level shortwave will move over southwest KS. An associated complex of storms could clip central portions of the state early tomorrow morning, and a few CAMs show isolated storms developing along a theta-e/instability gradient in central KS that may briefly impact locations in and around Ottawa and Dickinson Counties.

The sfc ridge keeps conditions dry on Thursday. Temperatures will start off in the low 60s and warm into the mid to upper 80s during the afternoon. Winds will again be light throughout the day. Similar conditions are expected on Friday as the ridge moves east and a sfc trough deepens in the Front Range. Stronger southerly flow and an expanding mid-level ridge over the area will allow temperatures to quickly warm this weekend. Highs will be well into the 90s Saturday and Sunday with heat index values around 100 degrees. South- southwest winds will be breezy, gusting 25 to 30 mph each afternoon.

The probability for thunderstorms will also increase late this weekend, especially in far northern and north-central KS with a sfc boundary draped across the area. The boundary looks to stay positioned across northern Kansas and southeastern Nebraska through the first half of next week, which will keep at least low chance POPs in the forecast each afternoon/evening. Temperatures also stay hot moving into the start of September.

AVIATION /12Z TAFS THROUGH 12Z THURSDAY/

Issued at 623 AM CDT Wed Aug 26 2026

Dense fog is impacting airports early today. There may be some visibility fluctuations at times, but have VLIFR prevailing for the first few hours of this TAF period. Fog should begin to improve around 14Z and dissipate by 15Z with VFR returning. North winds will remain light today.

TOP WATCHES/WARNINGS/ADVISORIES

Dense Fog Advisory until 9 AM CDT this morning for KSZ010-KSZ011- KSZ012-KSZ022-KSZ023-KSZ024-KSZ026-KSZ035-KSZ036-KSZ037-KSZ038- KSZ039-KSZ040-KSZ054-KSZ055-KSZ056-KSZ058-KSZ059.