A highlight from Your Weather Forecast Update: Warmer Climate Will Be The New 'Normal'

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There is a change coming to your local weather forecast next month. The data that it's based on will be updated that will make the warmer climate literally. The new normal here's npr's jennifer. Ludden weather forecasters work off a thirty year average and it gets updated every decade right now. What's normal for temperature and precipitation is based on nineteen eighty one to two thousand ten. That's why we've all gotten used to this. Well temperatures for your friday. We'll be running about ten degrees than normal seven degrees above average yesterday. Look into tomorrow above. Normal temperatures will the past decade. Was one of the hottest on record mike. Pilecki of the national oceanic and atmospheric administration says that will show up in the new averages called climate normals. They'll drop the eighties and wrap in the twenty tens. It was a very substantial upward trend in temperatures especially along the west coast of south and along the east coast. He says there were exceptions. Oh you could go to fargo north dakota. That would be a place where it's actually cooled a little bit if that's your interest especially in the springtime but the fastest warming places. We'll see a real bump up in their averages. Amber sellin is chief. Meteorologist at abc fifteen phoenix. Where she says last summer was incredibly hot. We set a record of fifty three days at one hundred. Ten degrees or hotter. The previous record was thirty three days so it wasn't even close what's more she says. In the entire past decade phoenix did not said a single record for low temperature. Now oddly after the update in may some really hot days or nights could become officially cooler than the new normal sullivan's plans to take more time to explain all this. We're going to have to remind people especially this year. Hey if we're at one fifteen. That is five degrees above the average but remember this average has changed. This average is not what it used to be. That's important says bernadette. Woods plachy chief meteorologist with the nonprofit climate central. She says research shows people are really good simply resetting what feels normal and she sees danger in that were not aware of how much warming is happening on a regular basis. It's that slow grind. That's eating away at the changing normal. That doesn't give you the opportunity sometimes to sit back and look at what it used to be. Marshall shepherd heads atmospheric sciences at the university of georgia. He wonders if even using the term normal might be confusing and he agrees that for most the new weather. Averages will not impress when degree warming doesn't sound like a lot to most people. In fact many people say oh great. I can have cookouts in december more often but that steady warming has a big impact which he says meteorologist can help people understand. It helps fuel increasingly extreme weather. Wildfires floods hurricanes shepherd says other impacts are more subtle things like rising food prices declining water supply. the spread of vector borne. Disease is about things happening right. Now that are affecting their kitchen table issues their pocketbook their livelihoods and their health industries feel the impact to and for them. The official thirty year weather average is losing its relevance now is my policy says businesses want more recent data that reflects the risks. They face now. Energy companies to predict extreme heat and cold or take construction. They like to know. How many days does it rain during a certain period of time so they have a certain number of rain days that they build into their plans so for the first time this year. No noah will also put out fifteen year averages to help keep pace with a climate normal that just keeps changing jennifer ludden. Npr news washington.

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