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The North American Ensemble Forecast System (NAEFS) is a joint project involving the Meteorological Service of Canada (MSC) in Canada, the National Weather Service (NWS) in the United States, and the National Meteorological Service of Mexico (NMSM) in Mexico providing numerical weather prediction ensemble guidance for the 1- to 16-day forecast period. [1]
These include 8–14 day outlooks, monthly outlooks, and seasonal outlooks. ... and North American Ensemble Forecast System (NAEFS). The medium range forecast ...
The 8 to 14 day outlook from the Climate Prediction Center, which stretches almost until the end of February, is also calling for below average temperatures across the central and eastern U.S.
MONROE COUNTY — Weather forecast for agriculture, by the National Weather Service’ Climate Predication Center, is calling for near normal to below normal temperatures for its eight-to 14-day ...
The CPC’s 8-14-day outlook provides Boise with a 50-60% chance of above-average temperatures and a 33-40% chance of below-average precipitation.
The NAM is run four times a day (00, 06, 12, 18 UTC) out to 84 hours, with 12 km horizontal resolution and with three-hour temporal resolution, providing finer detail than other operational forecast models. Its ensemble is known as the Short Range Ensemble Forecast (SREF) and runs out 87 hours.
It has 20 members (plus control) and runs out 16 days, the same range as the American global forecast system. The GEPS runs alongside the GFS ensemble to form the North American Ensemble Forecast System. A regional ensemble prediction system (REPS), covering North America and also having 20 members plus control, runs out 72 hours.
When many different forecast models are used to try to generate a forecast, the approach is termed multi-model ensemble forecasting. This method of forecasting can improve forecasts when compared to a single model-based approach. [ 18 ]