Talk Technical to Me
Dan's reference to Chicago weather, in a comment below, led me to check the temperature in Chicago (56F at O'Hare, midday), which led me to notice that the National Weather Service site for the region includes links to "technical" and "non-technical" discussions. See if you can identify which is which:

Sample 1
...THIS AFTERNOON, WE CAN EXPECT VERY MILD AND PLEASANT CONDITIONS, WITH WELL ABOVE NORMAL TEMPERATURES. A SYSTEM DEVELOPING OVER THE ROCKIES AND MOVING EAST INTO THE PLAINS TODAY, IS PUSHING UNUSUALLY MILD AIR NORTHEASTWARD ACROSS THE MISSISSIPPI VALLEY AND INTO THE GREAT LAKES REGION. AS THIS STORM SYSTEM CONTINUES EASTWARD TO THE MISSISSIPPI VALLEY OVERNIGHT, IT WILL BRING A CHANCE OF RAIN, WITH THE RAIN CHANGING TO SNOW, TO OUR REGION FRIDAY. ALSO ON FRIDAY, COLDER AIR WILL RETURN AS WINDS TURN FROM SOUTHWEST TO NORTHWEST.

Sample 2
MODELS CONT TO ADVERTISE MORE AMPLIFIED BUT PROGRESSIVE PATTERN ACROSS NOAM FOR OVR NEXT 7 DAYS. THIS MORE WAVY PATTERN RESULTS IN LARGER TEMP SWINGS DURG THE PD AS FLO BACKS THEN VEERS WITH EACH UPR TROF APPREACH AND PASSAGE.