we have 57 incheses in pittsburgh you're probably coursing your local weatherman or woman, right? it is not their fault. the it feels that way when their forecasts are off. what your weather forecaster won't tell you. number five we're great predict weather in place that is don't have any. places like south dakota where high temperature can vary day-to-day by 10 degrees they were only right 70% of the time. more than 86%.ologists right we all use same data. why all forecasts so different? meteorologists are trying hard to be different and to promote their newscasts as having exclusive, triple doppler whatever. number three, the polar vortex is not a new thing. these freezing, bone-chilling temperatures are not as much rarity what you see on tv. actually dates back to the 1940s. happens every five to 10 years. number two, we're better at marketing. have you heard some stations like the weather channel calling these latest string of weather storms by names that are completely made up by the way? it is a way to get you to tune in by drumming up interest and hashtag nemo sound cooler

then, fridayed fri night into saturday, chance of another 2 to 3 incheses of snow, again >> drama ensued when politicians make the wrong call. and new york city mayor announces the forecast is not a concern and schools could stay open. here is al robinger's forecast. >> heading into new york, new jersey into parts of new england we're talking from 6 to 9 inches 3 to 6 inches as well. >> despite warnings new york city mayor chose to keep schools open anyway. a decision left parents, students and teachers outraged we had the governor declaring a state of emergency telling foam stay off the roads and the mayor telling you to go to school. mayor defended his decision blaming the national weather service. >> we knew based on reports of the national weather service we could have as little as three inches of snow on the ground by the time kids walked into the door of the schools and could have more. we could have 4 or 5, or more. it was a grave situation >> assume the best. that is the best. assume the worst will not happen. don't plan accordingly. that did not sit too well with al robinger who