Current Conditions at Sanborn Field

Wednesday - Cloudy. High: 50-54
  

 

Wednesday Night - Cloudy with rain likely. Low: 38-42

Thursday - Cloudy with rain, tapering off in afternoon. High: 46-50

 

Thursday Night - Clouds begin to clear. Low: 30-34

Friday - Sunny. High: 52-56

                   

 

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Discussion: 

Today, clouds will persist but temperatures will be warmer than they were earlier this week. It will rain tonight and into Thursday afternoon, and the clouds will finally move away Thursday night, providing for a sunny day on Friday. Clear skies will allow for a warmer day on Friday.

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Forecaster: Beasley, Sumrall

Issued:  6 AM CDT 28 October 2020

 

Technical Discussion (The nerdy stuff we are discussing in class)

This forecast was put together using the 06ZGFS and SREF plumes for temperatures. The main focus for this forecast period will be the low pressure system moving toward us from the southwest.

High values of relative humidity at the 700mb and 850mb levels point to overcast conditions today. As the low moves toward us from the southwest, winds will shift to the south, causing moisture advection and WAA from the Gulf. There are high values of vorticity associated with the low at the 500 mb level, paired with negative omega at 700mb. Increased vorticity and negative omega values will be present over Columbia tonight and through Thursday afternoon, which will cause rain totalling about an eighth of an inch. Chances for flash flooding will remain to our south since the heaviest rain will occur south of Columbia.

By Thursday afternoon, relative humidity will decrease as the low moves to our southeast. This will allow the rain to end and clouds to decrease. Relative humidity remains low through Friday and the flow aloft becomes zonal. The skies will remain clear and allow for warmer temperatures than we experienced earlier in the week.