CFS Weekly to Seasonal Forecasts

CFSv2 Forecast Grid Initialization – North America: 2025/07/26

7-day Forecast Means – North America
Mean Wind [700-500 mb] (mph)	Loop	Grid	26Jul	02Aug	09Aug	16Aug	23Aug	30Aug	06Sep	13Sep	20Sep
			27Sep	04Oct	11Oct	18Oct	25Oct	01Nov	08Nov	15Nov	22Nov
Mean Wind/Height [700 mb] (mph/dam)	Loop	Grid	26Jul	02Aug	09Aug	16Aug	23Aug	30Aug	06Sep	13Sep	20Sep
			27Sep	04Oct	11Oct	18Oct	25Oct	01Nov	08Nov	15Nov	22Nov
Mean/Anom Geopotential Height [500 mb] (dam)	Loop	Grid	26Jul	02Aug	09Aug	16Aug	23Aug	30Aug	06Sep	13Sep	20Sep
			27Sep	04Oct	11Oct	18Oct	25Oct	01Nov	08Nov	15Nov	22Nov
Mean/Anom Relative Humidity [850 mb] (%)	Loop	Grid	26Jul	02Aug	09Aug	16Aug	23Aug	30Aug	06Sep	13Sep	20Sep
			27Sep	04Oct	11Oct	18Oct	25Oct	01Nov	08Nov	15Nov	22Nov
Mean Relative Humidity [500 mb] (%)	Loop	Grid	26Jul	02Aug	09Aug	16Aug	23Aug	30Aug	06Sep	13Sep	20Sep
			27Sep	04Oct	11Oct	18Oct	25Oct	01Nov	08Nov	15Nov	22Nov
Mean Relative Humidity [Surface] (%)	Loop	Grid	26Jul	02Aug	09Aug	16Aug	23Aug	30Aug	06Sep	13Sep	20Sep
			27Sep	04Oct	11Oct	18Oct	25Oct	01Nov	08Nov	15Nov	22Nov
Max Relative Humidity [Surface] (%)	Loop	Grid	26Jul	02Aug	09Aug	16Aug	23Aug	30Aug	06Sep	13Sep	20Sep
			27Sep	04Oct	11Oct	18Oct	25Oct	01Nov	08Nov	15Nov	22Nov
Min Relative Humidity [Surface] (%)	Loop	Grid	26Jul	02Aug	09Aug	16Aug	23Aug	30Aug	06Sep	13Sep	20Sep
			27Sep	04Oct	11Oct	18Oct	25Oct	01Nov	08Nov	15Nov	22Nov
Accumulated Precipitation/Anomaly (in)	Loop	Grid	26Jul	02Aug	09Aug	16Aug	23Aug	30Aug	06Sep	13Sep	20Sep
			27Sep	04Oct	11Oct	18Oct	25Oct	01Nov	08Nov	15Nov	22Nov
Mean Wind/Height [200 mb] (mph/dam)	Loop	Grid	26Jul	02Aug	09Aug	16Aug	23Aug	30Aug	06Sep	13Sep	20Sep
			27Sep	04Oct	11Oct	18Oct	25Oct	01Nov	08Nov	15Nov	22Nov
Mean Wind/Height [300 mb] (mph/dam)	Loop	Grid	26Jul	02Aug	09Aug	16Aug	23Aug	30Aug	06Sep	13Sep	20Sep
			27Sep	04Oct	11Oct	18Oct	25Oct	01Nov	08Nov	15Nov	22Nov
Mean/Anom Height/Temperature [850 mb] (dam/F)	Loop	Grid	26Jul	02Aug	09Aug	16Aug	23Aug	30Aug	06Sep	13Sep	20Sep
			27Sep	04Oct	11Oct	18Oct	25Oct	01Nov	08Nov	15Nov	22Nov

CFSv2 Forecast Grid Initialization – Global: 2025/07/26

7-day Forecast Means - Global
Mean/Anom Geopotential Height [500 mb] (dam)	Loop	Grid	26Jul	02Aug	09Aug	16Aug	23Aug	30Aug	06Sep	13Sep	20Sep
			27Sep	04Oct	11Oct	18Oct	25Oct	01Nov	08Nov	15Nov	22Nov
Mean/Anom Relative Humidity [850 mb] (%)	Loop	Grid	26Jul	02Aug	09Aug	16Aug	23Aug	30Aug	06Sep	13Sep	20Sep
			27Sep	04Oct	11Oct	18Oct	25Oct	01Nov	08Nov	15Nov	22Nov
Mean Relative Humidity [500 mb] (%)	Loop	Grid	26Jul	02Aug	09Aug	16Aug	23Aug	30Aug	06Sep	13Sep	20Sep
			27Sep	04Oct	11Oct	18Oct	25Oct	01Nov	08Nov	15Nov	22Nov
Mean Wind/Height [200 mb] (mph/dam)	Loop	Grid	26Jul	02Aug	09Aug	16Aug	23Aug	30Aug	06Sep	13Sep	20Sep
			27Sep	04Oct	11Oct	18Oct	25Oct	01Nov	08Nov	15Nov	22Nov
Mean Wind/Height [300 mb] (mph/dam)	Loop	Grid	26Jul	02Aug	09Aug	16Aug	23Aug	30Aug	06Sep	13Sep	20Sep
			27Sep	04Oct	11Oct	18Oct	25Oct	01Nov	08Nov	15Nov	22Nov
Mean/Anom Height/Temperature [850 mb] (dam/F)	Loop	Grid	26Jul	02Aug	09Aug	16Aug	23Aug	30Aug	06Sep	13Sep	20Sep
			27Sep	04Oct	11Oct	18Oct	25Oct	01Nov	08Nov	15Nov	22Nov

This product has been developed to support Predictive Services wildland fire weekly to seasonal forecasts. Means, min/max relative humidity, and accumulated precipitation have been derived from the Climate Forecast System Version 2.0 (CFSv2) model single runs. Means represent the average at 00Z over 7 days; min/max relative humidity represents the average min/max at 00Z over 7 days; and accumulated precipitation represents the total over all daily times steps (00/06/12/18 Z) over 7 days. Anomalies are derived using 30-year daily climatologies [1981-2010] computed from the NCEP North American Regional Reanalysis (NARR) and the Global Reanalysis I datasets. Vector maps show values for every other grid cell. Global maps are updated once per month on the 20th and North American maps are updated on each Sunday of the month.