Polar vortex outbreak creates 90 degree difference from one end of Texas to the other
Look at the cold plunging from the latest polar vortex incursion:
Notice the difference between Houston and Dallas, or New Orleans and Wichita now take a look at this map. WeatherBell’s Ryan Maue reports that the coldest state in Lower 48 was Iowa, with an average of -1.0°F
Look at the gradient across the front in Texas, note how sharp it is; a 90 degree difference from the southern tip of Texas to the Texas panhandle.
Former AMS president Marshal Shepard remarks:
Even better depiction of temperature difference with this front..90 deg difference.. Wow via Jared rackley pic.twitter.com/FDRZZvEtGb
See the WUWT Polar Vortex page for more
UPDATE: Greg Carbin of NOAA produced the 24 hour animation of surface temps: