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U.S. Regional Drought Watch

National Climatic Data Center, 12 September 2003

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Global Analysis / Global Hazards / United States / U.S. Drought / Extremes
Use these links to access detailed analyses of Global and U.S. data.

Regional Drought Overview / Additional Contacts / Questions

Click here to go to Top of Page Regional Overview

August was hot and dry in the northern Plains and Upper Mississippi Valley, resulting in extreme short-term drought from the western Great Lakes to the northern Rockies. The month was also dry across parts of the West and a few locations in the southern Plains and along the east coast. Very heavy rain fell at the end of an otherwise very dry month across much of the central Plains (Oklahoma, Kansas, and Missouri). The primary stations in Hawaii were drier than normal during August. The precipitation pattern for the stations in Puerto Rico for the last 4 weeks to 8 weeks, and for the primary stations in Alaska, was mixed.

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The dryness of August was a continuation of very dry conditions from July in some areas and for the entire summer in other areas. Long-term moisture deficits persisted across parts of the Great Lakes to Great Plains, northern Maine, and much of the West.

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Some regional highlights:

  • New Mexico had its driest July-August, Washington its driest June-August, and Iowa and Minnesota their second driest August, in 2003, based on statewide records going back to 1895
  • record heat occurred at many stations in the West and Great Plains
  • according to August 31 reports from the USDA,
    • 40% or more of the pasture and range land was classified in "poor" or "very poor" condition for all but five states west of the Mississippi River, with conditions significantly deteriorating over the last four weeks
      • 65% or more of the pasture and range land was classified in "poor" or "very poor" condition for Iowa, Kansas, Missouri, Montana, Nebraska, New Mexico, and Wisconsin
    • 55% or more of the topsoils were classified in "poor" or "very poor" ("short" or "very short") condition for all but one of the reporting states from the Great Lakes to Texas then westward to the Pacific coast
      • Montana, Iowa, and Nebraska had 90% or more of the topsoils in "poor" or "very poor" condition
  • end-of-August reservoir storage for all of the reporting western states averaged below the long-term mean percent of capacity for this time of year
  • as noted by the National Interagency Fire Center, about four dozen significant wildfires continued to burn across the northern Plains and western states at the beginning of September

These overall conditions are evident in the following indicators:

A detailed review of drought conditions is available for the following regions and states:

A review of drought conditions as compared to the pre-instrumental period using paleoclimatic data is available for the following:

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Click here for map showing Current Month Statewide Precipitation Ranks
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Click here for map showing Current Month Palmer Z Index
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Click here to go to Top of Page Additional Contacts:

Damage due to the drought has been summarized by NOAA and the Office of Global Programs in the Climatological Impacts section of the Climate Information Project. Crop impact information can be found at the USDA NASS (National Agricultural Statistics Service) and Weekly Weather and Crop Bulletin pages. Drought statements by local National Weather Service Offices can be found at the NWS Hydrologic Information Center. Drought threat assessments and other information can be found at NOAA's Drought Information Center. Additional drought information can be found at the National Drought Mitigation Center, the USDA's National Agricultural Library, the interim National Drought Council, and the NOAA Paleoclimatology Program. The following states have set up web pages detailing current drought conditions and/or their plans to handle drought emergencies:
Colorado - Delaware - Delaware River Basin (DE-NJ-NY-PA) - Florida Panhandle - Georgia - Hawaii - Idaho - Kentucky - Maine - Maryland - Missouri-1 - Missouri-2 - Montana-1 - Montana-2 - Nebraska - New Jersey-1 - New Jersey-2 - New Jersey-3 - New Mexico - North Carolina - Oklahoma-1 - Oklahoma-2 - Oklahoma-3 - Oregon - Pennsylvania-1 - Pennsylvania-2 - Pennsylvania-3 - South Carolina - Texas - Vermont - Virginia - Washington - Wyoming

For additional information on current and past wildfire seasons please see the National Interagency Fire Center web site or the U.S. Forest Service Fire and Aviation web site.

NCDC's Drought Recovery Page shows the precipitation required to end or ameliorate droughts and the probability of receiving the required precipitation.

Additional climate monitoring graphics can be found at the Climate Prediction Center's monitoring pages:

Precipitation and modeled soil moisture anomaly maps for the Midwest U.S. can be found at the Midwest Regional Climate Center's monitoring page.

Drought conditions on the Canadian prairies can be found at the Agriculture and Agri-Food Canada Drought Watch page.

Click here to go to Top of Page For all climate questions other than questions concerning this report, please contact the National Climatic Data Center's Climate Services Division:

Climate Services Division
NOAA/National Climatic Data Center
151 Patton Avenue
Asheville, NC 28801-5001
fax: 828-271-4876
phone: 828-271-4800
email: ncdc.info@noaa.gov
For further information on the historical climate perspective presented in this report, contact:

Richard Heim
NOAA/National Climatic Data Center
151 Patton Avenue
Asheville, NC 28801-5001
fax: 828-271-4328
email: Richard.Heim@noaa.gov
-or-
Jay Lawrimore
NOAA/National Climatic Data Center
151 Patton Avenue
Asheville, NC 28801-5001
fax: 828-271-4328
email: Jay.Lawrimore@noaa.gov
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Graphic showing NOAA logo NCDC / Climate Mon. / Climate-2003 / August / U.S. Drought / Regional / Search / Help

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Last Updated Friday, 18-Nov-2005 14:11:44 EST by Richard.Heim@noaa.gov
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