textproduct: Topeka

KEY MESSAGES

- The Extreme Heat Warning remains in effect until Tuesday evening. Afternoon heat index values will reach 100-108 degrees again on Tuesday.

- A cold front will move slowly through the area Tuesday evening through Wednesday night bringing chances for showers and storms along with some relief from the excessive heat.

DISCUSSION

Issued at 105 PM CDT Mon Sep 7 2026

A weak wave evident in the water vapor loop was dropping south across MO/AR and this has caused sfc winds to back to the ESE across the eastern half of the CWA where dewpoints have remains around 70. Weak sfc convergence appears to be generating a agitated cu field south of Lyon County this afternoon and with an uncapped atmosphere after 3pm it appears that isolated convection could develop at least for a few hours before sunset south of Topeka. Dry conditions should prevail after sunset with another very warm Sept night in store.

On Tuesday, the low level thermal ridge will be drawn northeast across the region in advance of the sfc front with another very hot day expected with highs around 100 and HI again in the 100-109 range. As a result we will keep the heat warning in place through tomorrow. Given instability along the boundary tomorrow afternoon there should be scattered storms along the front which could impact north central KS during the afternoon and evening with a wind and marginal hail risk. Additional elevated storms should form overnight into early Weds just north of the boundary so expect scattered storm potential to persist Tues night through Weds as the front sags southward across the area. No plans to extend any heat headlines for Weds at this point given uncertainty of frontal position and clouds/precip impacts on temps.

The area may see several chances for storms in the Weds night through Saturday period with stronger 500mb flow and LLJ/WAA nighttime forcing especially Fri into Saturday.

AVIATION /18Z TAFS THROUGH 18Z TUESDAY/

Issued at 1208 PM CDT Mon Sep 7 2026

VFR conditions are forecast at the TAF sites through the period with southeast winds AOB 10kts overnight with any CIGS AOA 12kft.

CLIMATE

Issued at 222 AM CDT Mon Sep 7 2026

Record highest minimum temperature information:

Record Forecast

September 8 Topeka 78, set in 1983 74 Concordia 77, set in 1947 & 1983 78

Record high temperature information:

September 8 Topeka 104, set in 2013 101 Concordia 102, set in 2013 101

TOP WATCHES/WARNINGS/ADVISORIES

Extreme Heat Warning until 7 PM CDT Tuesday for KSZ008-KSZ009- KSZ010-KSZ011-KSZ012-KSZ020-KSZ021-KSZ022-KSZ023-KSZ024-KSZ026- KSZ034-KSZ035-KSZ036-KSZ037-KSZ038-KSZ039-KSZ040-KSZ054-KSZ055- KSZ056-KSZ058-KSZ059.