textproduct: Springfield

KEY MESSAGES

- Extreme Heat Warning across portions of southeast KS, southwest MO, and into central MO through Wednesday. Daily heat index values around 105 to 108. Elsewhere, a Heat Advisory is in effect for daily heat index values around 100 to 104.

- Low shower and thunderstorm chances (< 15%) clip portions of the area on Wednesday and Thursday, with most areas remaining dry.

- Confidence is increasing in the extension of heat headlines on Thursday into the upcoming weekend.

SHORT TERM /THROUGH TONIGHT/

Issued at 130 PM CDT Mon Aug 10 2026

Through Tonight: Another hot and humid afternoon across the area as an upper- level ridge continues to establish itself across the central CONUS. 850mb temperatures reach towards 22 to 25 C, supporting high temperatures in the middle to upper 90s. A few locations reach towards 100 across southeast KS into far southwest MO. Add in the humidity, and heat index values reach towards 100 to 108. The highest heat index values will occur within the Extreme Heat Warning, with just a touch lower values across the remainder of the area in a Heat Advisory. Additionally, minimal overnight relief is expected with very warm overnight lows in the upper 70s to lower 80s.

LONG TERM /TUESDAY THROUGH SUNDAY/

Issued at 130 PM CDT Mon Aug 10 2026

Tuesday-Sunday: Expecting similar conditions to persist through much of the forecast period, outside of low PoPs clipping the area on Wednesday and Thursday. NWS Heat Risk continues to show the entire area in the Major to Extreme category through the upcoming weekend, therefore heat sensitive groups will need to take proper precautions. Daily highs remain progged to push towards middle to upper 90s, with lower 100s in portions of southeast KS into southwest MO. Likewise, daily heat index values are expected to push towards 100 to 108. As a result, heat headlines will likely need to be extended beyond Wednesday if confidence continues to increase. As mentioned though, the one fly in the ointment would be low PoPs (< 15%) on Wednesday and Thursday across our northern counties. This would be the result of the low chances from remnant activity sinking into the area, with the active jet stream displaced just north of the area through mid-week. If confidence continues to lean towards the lower or no PoPs scenario, than heat headlines will need extended in time. Beyond Thursday, ensemble guidance suggest a restrengthening of the upper- level ridge across the region. This supports the signal for extreme heat persisting over the next week or so.

AVIATION /18Z TAFS THROUGH 18Z TUESDAY/

Issued at 1210 PM CDT Mon Aug 10 2026

High confidence in VFR flight conditions prevailing through the TAF period. Minimal cloud cover through the period. South- southwest winds at 8 to 12 knots, with occasional wind gusts up 20 knots this afternoon at KJLN and KSGF.

SGF WATCHES/WARNINGS/ADVISORIES

KS...Extreme Heat Warning until 8 PM CDT Wednesday for KSZ073-097- 101. MO...Extreme Heat Warning until 8 PM CDT Wednesday for MOZ055>058- 066>069-077>080-088-089-093-094-101. Heat Advisory until 8 PM CDT Wednesday for MOZ070-071-081>083- 090>092-095>098-102>106.