Wednesday: Sunny. High: 73°F    

Wednesday Night: Clear. Low: 48°F    

Thursday: Partly Sunny. High: 75°F    

Thursday Night: Partly Cloudy. Low: 50°F    

Friday: Partly Sunny. High: 74°F   

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General Discussion:   

There is a significant lack of moisture in the Mid-Missouri area that is keeping conditions mostly sunny and dry. Weak winds keep temperatures in the low to mid 70s throughout the forecast period.

-Wyrick

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Forecasters: Halter, Nightingale 

Date Issued: 10/07/2025 09:00:00 UTC   

Technical Discussion:  

Key Messages: 

• The colder temperatures persist due to the geostrophic flow. 
• Conditions stay calm for the forecast period due to lack of moisture at all levels.

 Discussion: 

The GFS was consulted more than the NAM because of the accurate moisture and temperature profiles. 

Wednesday

The forecast area is in a stagnant weather pattern due to the geostrophic flow noted on multiple levels. Winds from the west are fairly weak, suggesting little change to temperature and moisture content. At both the 250 and 300 levels, a low passes over Mid-Missouri around Thursday at 00Z. A small patch of vorticity is associated with the low, which brings the opportunity for spin in the atmosphere. However, lower RH and omega values at 700 level limit our chances for any cloud cover or precipitation. Low moisture content means conditions will stay clear and mostly sunny and cool for all of Wednesday. 

Thursday

The geostrophic flow continues into Thursday, paired with a ridging pattern that begins on Thursday at 06Z. This ridging pattern is consistent throughout all levels, following a low that moves out on Thursday at 09Z. At 700 mb, relative humidity values increase (>80%) at 12Z, but quickly exits the area by 21Z. This could point to the potential for some mid level clouds by Thursday afternoon. After the moisture moves out, a patch of WAA enters the area at 850 mb by late Thursday into early Friday, this could indicate a warm up for the end of the week. 

Friday 

Weak NW winds (between 10 and 20 knots) are found at 500 and 700 mb on Friday. A subtropical jet streak enters our area early Friday morning at the 250mb level, that’s associated with an influx of moisture at the 850 mb level. This suggests an increase in lower level cloud coverage, paired with an increase in temperatures by early Friday. By Friday at 06Z, we’re situated just SSE of a saddlepoint/col. 

Future forecasters should note the incoming jet streak from the subtropical jet, the low level jet and the wind shift to the SW on Friday.

• Halter, Nightingale