473 FXUS63 KSGF 201130 AFDSGFArea Forecast Discussion National Weather Service Springfield MO 630 AM CDT Sat Sep 20 2025
.KEY MESSAGES...
- 60-80% chances for overnight and daily thunderstorm complexes to impact portions of the area through this weekend. Small hail and localized flooding are the main hazards.
- More seasonal temperatures and additional rain chances will occur through the coming week. While most rain chances will be scattered, there is potential for at least one day to see more widespread rainfall.
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.SHORT TERM /THROUGH SUNDAY/... Issued at 116 AM CDT Sat Sep 20 2025
Satellite imagery showed a storm complex moving across eastern Kansas early this morning associated with an upper level subtle shortwave within the west to northwesterly flow aloft. Synoptic models continue this system east and into far southeastern Kansas and the Missouri Ozarks around sunrise with the system moving slowly east through the day.
However, CAMS have begun to show a slightly more southerly track of the system which would potentially keep much rainfall from impacting portions of central Missouri with the best chances for rain to fall across southwestern Missouri. Areas southwest of a Nevada to Branson line (60-80%), though some models bring the system a bit farther northward into the Springfield and surrounding areas through this afternoon. Despite the possible southward shift, most areas should see light to moderate rain. Limited instability will be available with CAM forecast soundings maintaining from 20-30 kts of deep layer shear. While this will be enough to allow for the storm complex to remain organized, any severe potential will be rather limited.
By this evening, a 30-35kt LLJ will move over the region as a mid and upper level shortwave reinforces the rain potential across the region. There will likely be periods of dry weather for portions of the Ozarks this afternoon in advance of the next middle and upper level shortwave moving over the region. Depending on the orientation of the storms the background PWATS from 1 to 1.5" would allow for some efficient rainfall and the potential for at least a few brief training storms which may lead to some localized flooding. LPMMs have continued with from 0.5 to 1.5 inches across our southwestern CWA, with localized areas up to 3-4 inches. Amounts then taper off the farther north and east across central Missouri.
with increasing clouds and rain around through the day, temperatures are expected to be cooler in the upper 70s to lower 80s.
The overall setup changes little into tonight and Sunday morning as another short wave moves across the region with similar jet interactions though a more organized 250mb jet does nose into the Ozarks. A NW-SE band of showers and thunderstorms are then expected to develop somewhere over our region into Sunday morning. Localized flooding and small hail would be the main hazards with these storms, though an outlier solution depicted by CAMs give a slight potential (
NWS SGF Office Area Forecast Discussion