Springfield, Missouri — Dangerous late-summer heat is gripping parts of Missouri and Kansas this weekend, with afternoon temperatures approaching 100 degrees and heat index values reaching as high as 105 degrees.
The National Weather Service office in Springfield has a Heat Advisory in effect through 8 p.m. CDT Saturday, Sept. 19, covering portions of southeast Kansas and a large part of southern and central Missouri.
Communities included in the advisory include Springfield, Branson, Joplin, Lake Ozark, Rolla, Lebanon, Fort Leonard Wood and West Plains in Missouri, along with Fort Scott and Pittsburg in Kansas.
Heat Index Could Reach 105 Degrees
The most concerning aspect of the weekend heat is not just the actual temperature but how hot it will feel.
Forecasters expect heat index values between roughly 100 and 105 degrees across parts of the affected region. Afternoon temperatures in the Missouri Ozarks are expected to climb into the upper 90s, creating potentially dangerous conditions for anyone spending extended periods outdoors.
Springfield, for example, was forecast to reach approximately 97 to 98 degrees Saturday.
The combination of high temperatures and humidity can place additional stress on the body, particularly during prolonged outdoor activity.
Extreme Heat Is Unusual This Late in September
The intensity of the heat is especially notable because the region is approaching the end of summer.
The National Weather Service in Springfield said temperatures near 100 degrees could challenge or potentially break daily records as a strong upper-level ridge remains positioned over the area.
That ridge is helping maintain the hot and largely dry conditions, allowing temperatures to climb significantly during the afternoon.
The St. Louis area is also experiencing dangerous heat.
The National Weather Service said portions of central, east-central and southeast Missouri were under a Heat Advisory Saturday, with heat index values potentially reaching 105 degrees.
Residents Urged to Take Heat Precautions
With temperatures and humidity combining to create dangerous conditions, officials are urging residents to limit their exposure during the hottest part of the day.
People spending time outdoors are encouraged to stay hydrated, take frequent breaks and seek air-conditioned or cooler locations whenever possible.
Strenuous outdoor activities should also be moved to the early morning or evening hours, when temperatures are lower.
Officials are additionally urging people to check on older adults, young children and others who may be especially vulnerable to extreme heat.
Pets can also be affected by excessive heat, making it important to provide them with adequate water and access to shade or a cooler environment.
Cold Front Will Bring Major Relief
The intense heat is not expected to last for long.
A cold front moving through Sunday into Monday should bring a significant change in temperatures across Missouri and Kansas.
For the Springfield region, temperatures are expected to fall sharply, with highs dropping into the 70s to around 80 degrees by the middle of next week.
The frontal passage could also bring scattered showers and thunderstorms as cooler air moves into the region.
That change will provide substantial relief after a weekend in which temperatures are expected to approach levels more commonly associated with the heart of summer.
Heat Could Give Way to Cooler Fall Conditions
The rapid transition from near-record heat to much cooler temperatures highlights how quickly weather conditions can change during the late summer and early fall.
For now, residents across the Heat Advisory area should remain cautious during the hottest hours Saturday, particularly when working or exercising outdoors.
With temperatures approaching 100 degrees and feels-like temperatures reaching 105, this weekend’s heat should not be taken lightly.
Are you experiencing the unusual September heat in Missouri or Kansas? Tell us your city and how hot it feels where you are in the comments.
