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Weather Maps of the United States for Mid to Late April 1912

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.
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