Noaa Forecast Portland (2024)

FAQs

How accurate is NOAA weather? ›

A seven-day forecast can accurately predict the weather about 80 percent of the time and a five-day forecast can accurately predict the weather approximately 90 percent of the time. However, a 10-day—or longer—forecast is only right about half the time.

A warning issued by the NWS for a local weather hazard of relatively short duration. Short-fuse warnings include tornado warnings, severe thunderstorm warnings, and flash flood warnings.

The NOAA Center for Weather and Climate Prediction in College Park,Md., houses dedicated scientists who provide the United States with expert weather, water, and climate forecasts that touch everyone's lives.

According to ForecastWatch, the premier organization for evaluating the accuracy of weather forecasts, The Weather Company is more likely to be the most accurate across all geographic regions studied (U.S., Canada, Central America, South America, Europe, Africa, Middle East and Asia-Pacific) and time periods covered.

NOAA's dedicated scientists use cutting-edge research and high-tech instrumentation to provide citizens, planners, emergency managers and other decision makers with reliable information they need, when they need it.

The most dangerous neighborhood in Portland is Lents. Located in southeast Portland, Lents is a bustling neighborhood full of bars, restaurants, movie theaters, and shops.

Mount Hood, Mount Saint Helens, and Mount Adams are visible when the clouds are high and the atmosphere is clear.

Not Active: ENSO Alert System is not active. Neither El Niño nor La Niña are observed or expected in coming 6 months.

A watch is issued when hurricane conditions are a possibility within 48 hours. A warning is issued when a hurricane is expected in an area within 36 hours.

What are the 5 levels of severe weather? ›

The product is divided into 5 levels. Those levels from 1 to 5 respectively are MARGINAL, SLIGHT, ENHANCED, MODERATE, and HIGH. An area under a MARGINAL risk for severe weather will feature a threat of isolated severe weather.

Over the last 23 years, the yearly number of Atlantic hurricanes has fallen within NOAA's predicted ranges only 53% of the time. In 2010, NOAA increased the width of their ranges, leading to a 71% accuracy rate. The accuracy rates for major hurricanes (Cat 3+) are 61% and 71%, respectively, for these same timeframes.

This year, NOAA predicts a very high likelihood (85% chance) of an above-normal Atlantic hurricane season (2), with 17-25 named storms (average is 14), 8-13 hurricanes (average is 7), and 4-7 major hurricanes (average is 3) (3).

Whenever a tropical cyclone (a tropical depression, tropical storm, or hurricane) or a subtropical storm has formed in the Atlantic or eastern North Pacific, the NOAA National Hurricane Center (NHC) issues tropical cyclone advisory products at least every 6 hours at 5 am, 11 am, 5 pm, and 11 pm EDT.

View the full report on AccuWeather.com and ForecastWatch. “As the most accurate source of weather forecasts and warnings in the world, AccuWeather is the clear leader in keeping people safe and out of harm's way,” said Dr. Joel N. Myers, Founder, President, and Chairman of AccuWeather.

NOAA Hi-Def Radar is one of the most popular weather apps for good reason: it loads incredibly fast, has useful bookmarking features, and gives you a ton of information about severe weather conditions.

AccuWeather – Most Accurate Weather App

Up to the minute weather reports.

The forecasts were analyzed and ranked based on 84 different accuracy metrics covering precipitation, temperature, cloud cover and wind forecast variables. The report noted that "The Weather Channel recorded the most first-place finishes globally for every year and every time period."