Changing Times Ag WX; How Long Does Arctic Air Stay; Will We See a March Pattern Break Away From La Nina

<p>WIND CHILL WARNING UNTIL 9 AM ADVISORY UNTIL 1 PM Very cold Arctic air will sit over the Central US as the deep upper-level trough slowly moves east out of the Rockies and through the Plains today and tomorrow.  This will result in temps in the teens, while lows and wind chills fall below zero.  Some light snow or flurries possible tonight and tomorrow morning when piece of energy rotates through Texas and the Southeast.   Friday a Arctic high-pressure shifts east southerly flow warms temps into the low to mid 30’s and nighttime temps in the low teens.    Saturday a ridge begins to rebuild out to the west bring northwest flow over the area warming daytime temps into the mid 40’s and overnight lows into the mid-teens.  Sunday ridge expands over the area and more westerly flow keeps warming temps into the upper 50’s.           </p>