TEMPERATURES IN OUR AREA FOR SEVERAL YEARS. >> AND THAT TAKES US TO TONIGHT'S WHAT'S ON ROB'S RADAR. WHAT I'D LIKE TO DO FOR YOU TONIGHT IS REALLY DEMONSTRATES WHY THE TEMPERATURES WILL BE SO MUCH COLDER ON FRIDAY NIGHT AS COMPARED TO EVERY OTHER NIGHT THIS WEEK IN THE BIG DEAL. HERE IS THE CLOUD COVER CLOUDS PLAYED HE ROLE IN THE TEMPERATURE FORECAST AND TO DEMONSTRATE THIS THIS YEAR WILL REPRESENT THE DAYTIME SKY. THIS HERE WILL REPRESENT THE NIGHTTIME SKY AND THESE COTTON WILL REPRESENT THE CLOUD COVER. DID YOU KNOW THAT EVEN ON NICE WEATHER DAYS, ONLY ABOUT HALF OF THE SUN'S ENERGY THAT MOVES TOWARD THE PLANET IS ACTUALLY ABSORBED BY THE EARTH SURFACE. THAT'S BEUSE A LOT OF THE SUN'S ENERGY, IT'S THE CLOUDS BEFORE IT MAKES IT TO THE EARTH AND IS REFLECTED BACK INTO SPACE TO THE TUNE OF NEARLY 30%. THAT MAKES IT VERY EASY TO VISUALIZE WHY OVERCAST DAYS LIKE WE'VE HAD SO MUCH OF THIS WEEK MAKES THE CLOUD COVER AS BIG ROLE IN THE FORECAST BY KEEPING THE AFTERNOON TEMPERATURES SO COOL. EVEN LESS OF THE SUN'S ENERGY IS ABLE TO MAKE IT DOWN TO THE EARTH'S SURFACE, KEEPING US SUBSTANTIALLY COOLER IN THE AFTERNOON. NOW, CLOUDS HAVE A VERY DIFFERENT RELATIONSHIP WHEN IT COMES TO THAT NIGHTTIME, LOW TEMPERATURES, YOU KNOW, AT NIGHT AS SOON AS THE SUN GOES DOWN, THE HEAT OF THE EARTH'S SURFACE DOES ABSORB STARTS TO RADIATE BACK INTO EARTH'S ATMOSPHERE. BUT ON NIGHTS WHEN YOU HAVE ABUNDANT CLOUD COVER, LIKE WE'VE HAD EVERY SINGLE NIGHT THIS WEEK SO FAR, THEY ACT LIKE THE WORLD'S BIGGEST BLANKET BY PREVENTING THAT HEAT FROM ESCAPING OUT TOO FAR INTO THE ATMOSPHERE. IN FACT, NASA SAYS KNIGHTS WITH CLOUDY SKIES IN THE RIGHT CONDIONS CAN BE SOME 13 DEGREES. WARMER AS COMPARED TO NIGHTS WHERE THERE'S NO CLOUD COVER AT ALL. AND THAT'S THE TIE INTO FRIDAY NIGHT'S FORECAST ON FRIDAY NIGHT. WE'RE EXPECTING TO GET RID OF THE CLOUD COVER AND THAT WILL ALLOW THE HEAT TO RADIATE AWAY FROM THE EARTH'S SURFACE AT NIGHT, GIVING WAY TO NOT ONLY THE COOLEST TEMPERATURES IN THE SEVE