National Weather Service United States Department of Commerce

Fall Weather Pattern Arrives

Rain and much cooler temperatures behind a cold front will bring a feeling of fall to the east coast today. In addition, an active fall storm pattern developing in the Pacific Northwest this week will bring areas of heavy rains, and very high elevations could receive heavy snow. Wetting rains to the valley floors will spread south Thu and Fri into northern California,where active fires continue. Read More >

 
April 17, 1912
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 17, 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 17, 1912. Map Credit: NOAA Central Library Data Imaging Project. Daily Weather Maps, 17 April 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 17, 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 17, 1912. Map credit: United States Government. Army Air Forces and Weather Bureau. Historical Weather Maps: Daily Synoptic Series, Northern Hemisphere Sea Level, April 1912.
April 18, 1912
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 18, 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 18, 1912. Map Credit: NOAA Central Library Data Imaging Project. Daily Weather Maps, 18 April 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 18, 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 18, 1912. Map credit: United States Government. Army Air Forces and Weather Bureau. Historical Weather Maps: Daily Synoptic Series, Northern Hemisphere Sea Level, April 1912.
April 19, 1912
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 19, 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 19, 1912. Map Credit: NOAA Central Library Data Imaging Project. Daily Weather Maps, 19 April 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 19, 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 19, 1912. Map credit: United States Government. Army Air Forces and Weather Bureau. Historical Weather Maps: Daily Synoptic Series, Northern Hemisphere Sea Level, April 1912.
April 20, 1912
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 20, 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 20, 1912. Map Credit: NOAA Central Library Data Imaging Project. Daily Weather Maps, 20 April 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 20, 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 20, 1912. Map credit: United States Government. Army Air Forces and Weather Bureau. Historical Weather Maps: Daily Synoptic Series, Northern Hemisphere Sea Level, April 1912.
April 21, 1912
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 21, 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 21, 1912. Map Credit: NOAA Central Library Data Imaging Project. Daily Weather Maps, 21 April 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 21, 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 21, 1912. Map credit: United States Government. Army Air Forces and Weather Bureau. Historical Weather Maps: Daily Synoptic Series, Northern Hemisphere Sea Level, April 1912.
April 22, 1912
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 22, 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 22, 1912. Map Credit: NOAA Central Library Data Imaging Project. Daily Weather Maps, 22 April 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 22, 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 22, 1912. Map credit: United States Government. Army Air Forces and Weather Bureau. Historical Weather Maps: Daily Synoptic Series, Northern Hemisphere Sea Level, April 1912.
April 23, 1912
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 23, 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 23, 1912. Map Credit: NOAA Central Library Data Imaging Project. Daily Weather Maps, 23 April 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 23, 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 23, 1912. Map credit: United States Government. Army Air Forces and Weather Bureau. Historical Weather Maps: Daily Synoptic Series, Northern Hemisphere Sea Level, April 1912.
April 24, 1912
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 24, 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 24, 1912. Map Credit: NOAA Central Library Data Imaging Project. Daily Weather Maps, 24 April 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 24, 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 24, 1912. Map credit: United States Government. Army Air Forces and Weather Bureau. Historical Weather Maps: Daily Synoptic Series, Northern Hemisphere Sea Level, April 1912.
April 25, 1912
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 25, 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 25, 1912. Map Credit: NOAA Central Library Data Imaging Project. Daily Weather Maps, 25 April 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 25, 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 25, 1912. Map credit: United States Government. Army Air Forces and Weather Bureau. Historical Weather Maps: Daily Synoptic Series, Northern Hemisphere Sea Level, April 1912.
April 26, 1912
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 26, 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 26, 1912. Map Credit: NOAA Central Library Data Imaging Project. Daily Weather Maps, 26 April 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 26, 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 26, 1912. Map credit: United States Government. Army Air Forces and Weather Bureau. Historical Weather Maps: Daily Synoptic Series, Northern Hemisphere Sea Level, April 1912.
April 27, 1912
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 27, 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 27, 1912. Map Credit: NOAA Central Library Data Imaging Project. Daily Weather Maps, 27 April 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 27, 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 27, 1912. Map credit: United States Government. Army Air Forces and Weather Bureau. Historical Weather Maps: Daily Synoptic Series, Northern Hemisphere Sea Level, April 1912.
April 28, 1912
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 28, 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 28, 1912. Map Credit: NOAA Central Library Data Imaging Project. Daily Weather Maps, 28 April 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 28, 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 28, 1912. Map credit: United States Government. Army Air Forces and Weather Bureau. Historical Weather Maps: Daily Synoptic Series, Northern Hemisphere Sea Level, April 1912.
April 29, 1912
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 29, 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 29, 1912. Map Credit: NOAA Central Library Data Imaging Project. Daily Weather Maps, 29 April 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 29, 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 29, 1912. Map credit: United States Government. Army Air Forces and Weather Bureau. Historical Weather Maps: Daily Synoptic Series, Northern Hemisphere Sea Level, April 1912.
April 30, 1912
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 30, 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 30, 1912. Map Credit: NOAA Central Library Data Imaging Project. Daily Weather Maps, 30 April 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 30, 1912.
U.S. Weather Bureau Surface Analysis at 7:00 am CST (1300 UTC) on April 30, 1912. Map credit: United States Government. Army Air Forces and Weather Bureau. Historical Weather Maps: Daily Synoptic Series, Northern Hemisphere Sea Level, April 1912.