U.S. Drought Monitor Update for September 6, 2016
According to the September 6, 2016, U.S. Drought Monitor, moderate to exceptional drought covers 19.1% of the contiguous United States, a slight decrease from last week’s 19.5%. The worst drought categories (extreme to exceptional drought) held steady at 2.7% for a third week.
Subtropical high pressure kept most of the contiguous United States, from the Mississippi River eastward, drier than normal this U.S. Drought Monitor week. Hermine slipped in under the high, slamming into the Florida coast as a hurricane then tracking across eastern Georgia and the Carolinas as a tropical storm and dropping heavy rain along its track.
Meanwhile, a low pressure trough in the jet stream flow dragged a cold front across the Pacific Northwest and into the Northern Plains, where it stalled out and brought areas of above-normal precipitation. Drought contracted where it rained in the Northern Plains and Southeast. Drought held steady (California) or expanded (Great Basin) in the southwestern third of the country where little to no rain fell.
In addition to Drought.gov, you can find further information on the current drought as well as on this week’s Drought Monitor update at the National Drought Mitigation Center. See their recent news releases.
The most recent U.S. Drought Outlook is available from NOAA’s Climate Prediction Center and the U.S. Department of Agriculture’s World Agriculture Outlook Board provides information about the drought’s influence on crops and livestock.