textproduct: Springfield

KEY MESSAGES

- Heat Advisory in effect through Friday as daily heat indices climb to around 100 degrees. Little nighttime relief with lows in the middle to upper 70s. These conditions may linger through the Independence Day weekend, so those with outdoor plans to celebrate the holiday should make efforts to have cooling and hydration options readily available.

- Isolated convection will be possible each afternoon/evening starting Thursday. Currently, coverage/probability is 15-30%. There is potential for localized pulse-severe storms with microburst winds and large hail, but confidence is low at this time.

SHORT TERM /THROUGH TONIGHT/

Issued at 854 AM CDT Mon Jun 29 2026

Today/Tonight: - Impacts: Heat hazards. - Details: High temps in the low to mid 90s with heat index values around 100. Other details can be found in the DSS Packet. - Confidence: High. - Meteorological Analysis: High pressure southeast of the area and low pressure well northwest will continue to result in warm, moist air pushing into the region. Strong capping, as seen in model sounding plots and the morning and previous evening radiosondes, will prevent any convection from developing.

LONG TERM /TUESDAY THROUGH SUNDAY/

Issued at 854 AM CDT Mon Jun 29 2026

Heat wave through at least Friday, possible through the weekend: - Impacts: Heat hazards. - Details: High temps in the low to mid 90s with heat index values around 100 through the work week and possibly through the upcoming weekend. Other details can be found in the DSS Packet. - Confidence: High through Friday. Medium confidence in heat hazards extending through the upcoming weekend. - Meteorological Analysis: High pressure southeast of the area and low pressure well northwest will continue to result in warm, moist air pushing into the region. Models diverge on the large scale pattern this coming weekend, decreasing confidence. It is possible that heat impacts linger into early next week.

Isolated convection possible starting Thursday, possibly strong/severe: - Impacts: Localized general thunderstorms hazards. Potentially localized strong/severe storm threats. - Details: 15-30% chances/coverage of pulse storms during peak heating each afternoon/evening starting Thursday. Greater details associated with best location and threats (including some potential for strong/severe storms) will become more clear in the coming days. - Confidence: Medium in seeing at least some storms. Low in strength, coverage, and placement. - Meteorological Analysis: Through friday, the pattern doesn't change much, but greater moisture and a weakened cap is expected to materialize. At this time, that looks to lead to 15-30% coverage/probability for diurnal isolated convection starting Thursday. Depending on how much instability can result, pulse-severe storms will be possible, but confidence in that detail is low. This weekend may see a disruption to the pattern, but confidence is low in what will play out. There is potential that excessive heat will stick around through the weekend.

AVIATION /12Z TAFS THROUGH 12Z TUESDAY/

Issued at 542 AM CDT Mon Jun 29 2026

Confidence is high that VFR conditions will prevail through the period with passing high clouds at times. Surface winds will be out of the south with increasing gusts this morning and afternoon. Low level wind shear is likely to start and end the TAF period.

SGF WATCHES/WARNINGS/ADVISORIES

KS...Heat Advisory until 9 PM CDT Friday for KSZ073-097-101. MO...Heat Advisory until 9 PM CDT Friday for MOZ055>058-066>071- 077>083-088>098-101>106.