textproduct: Springfield

KEY MESSAGES

- Gusty southwest winds at 20 to 30 mph, becoming west to northwest into Wednesday morning at 25 to 35 mph.

- Near to above average temperatures through Friday. The warmest temperatures will be focused across the south and west with highs in the 50s.

- Cooler temperatures settle into the are Friday night through Sunday, with the coldest temperatures on Sunday. Minimum wind chills on Sunday morning dip into the single digits to teens.

- Dry through most of the period with precipitation chances less than 10%.

SHORT TERM /THROUGH WEDNESDAY NIGHT/

Issued at 130 PM CST Tue Dec 9 2025

Today-Tonight: A longwave trough with northwest flow persist over the region. At the surface, a low pressure is rapidly intensifying across the Northern Plains into the the Northern Mississippi Valley. As this system builds into the Great Lakes region, a strong pressure gradient builds over the area supporting gusty winds ahead of an associated frontal passage. This has supported gusty southwest winds this afternoon around 20 to 30 mph, advecting in a much warmer airmass. Highs this afternoon have reached into the middle to upper 50s.

By this evening into tonight, some clouds begin to build into the area ahead of an approaching frontal passage. This cold front is expected to remain dry across the area, with PoPs < 10%. Meanwhile, strong wind gusts persist behind the frontal passage, as winds turns out of the west to northwest. The latest guidance suggests wind gusts approach 25 to 35 mph, with occasional gusts near 40 mph, as further supported by forecast soundings at the top of the mixed layer. NBM Probabilities depicts the following for wind gusts overnight into Wednesday morning:

Prob > 30 mph: 60-90% Prob > 35 mph: 30-60% Prob > 40 mph: 10-30%

HREF guidance depicts the timing of the strongest wind gusts on Wednesday morning, focused along and east of Highway 65.

Wednesday: Clouds gradually clear through Wednesday morning, with gusty winds tapering off through the afternoon. Highs on Wednesday reach into the middle 40s (north) to near 50 (south). Additional cloud cover overspreads the area Wednesday night as a secondary wave translates through the region.

LONG TERM /THURSDAY THROUGH MONDAY/

Issued at 130 PM CST Tue Dec 9 2025

Thursday: By Thursday, a surface warm front lifts back through the area supporting a return of mild temperatures and southerly winds. The ridge and increasing mid-level heights nudge into the area, resulting in a temperature spread varying from middle to upper 50s (west) to upper 40s (east).

Friday-Sunday: As we progress into Friday, uncertainty returns to the temperature forecast as ensemble guidance continues to struggle capturing the timing and strength of impending CAA with the next dip in the jet stream. This can be captured by run to run and model to model discrepancies. NBM interquartile temperature spreads remain 10 to 15 degrees this weekend.

The latest trends and forecast support the mild temperatures lingering through at least Friday across southern MO. In this area, forecast highs are progged to reach into the lower to middle 50s. The cooler temperatures appear to remain contained further north through Friday. However, ensembles gradually filter in the cooler airmass on Saturday with highs in the upper 30s to 40s.

Surface high pressure sinks south into the area on Sunday, with a secondary surge of colder air. Overnight lows fall into the teens to near 20 into Sunday morning with breezy northerly winds. This will support wind chills dipping into the single digits to teens. Highs Sunday are expected to be below normal despite the larger interquartile spreads, with most guidance highlighting upper 20s to 30s.

Next Week: The extent and longevity of the below normal temperatures appears to remain confined to this weekend, as NBM depicts a warming trend into early next week. This would suggest highs returning to near normal to a few degrees below normal for mid- December.

AVIATION /18Z TAFS THROUGH 18Z WEDNESDAY/

Issued at 1125 AM CST Tue Dec 9 2025

VFR flight conditions across the area through the TAF period. Expect gusty southwest winds through this evening at 20 to 25 knots. Mid to high clouds build into the area tonight ahead of a dry frontal passage, with winds becoming west-northwest into Wednesday morning. Wind gusts persist upwards of 20 to 30 knots into Wednesday. Additionally, LLWS around 45 to 50 knots will be present this evening through the overnight.

SGF WATCHES/WARNINGS/ADVISORIES

KS...None. MO...None.