10 Day Forecast
from the GFSx Model

	10 Day Forecast Surface Pressure and Precipitation Amounts Updated once a day, early morning; valid times (12Z and 00Z) are approx. 7 a.m. and 7 p.m. GFSx model imagery courtesy of weather.unisys.com.
		Jet Stream Winds Air Mass Humidity Air Mass Temp. Near-Surface Temp. & Wind Surface Press. & Precip.
	NEW!: 5-day Forecast Animations of Surface Pressure & Precipitation, Surface Temp. & Wind, Air Mass Temperature, Air Mass Humidity, & Jet Stream Winds.

These 10-day forecasts come from the National Weather Service's GFSx (previously MRF) extended-range forecast model. The 10-day forecasts are updated once a day (early morning) and are at 12 hour intervals. The first image is for today at 7 a.m. The 12-hourly interval forecast fields include: (1) Surface Pressure & Precipitation Amounts (seen above); (2) Near-Surface (1000 mb) Temperature & Wind; (3) 850 mb Temperatures, which provides a good measure of the air mass temperature; (4) 850 to 500 mb Relative Humidity, which shows areas of disturbed weather (high humidity); and (5) 300 mb Winds, which gives winds at the jet stream level. Move your mouse over the blue bar to change forecast times.

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Boston, MA
Boston, MA snow
Boston, MA radar
Boston, MA sat
MA map

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02108
02108 snow
02108 radar
02108 sat

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MA
MA snow

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10 Day Forecastfrom the GFSx Model

10 Day Forecast Surface Pressure and Precipitation Amounts

10 Day Forecast
from the GFSx Model