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Use these links to access detailed analyses of Global and U.S. data.
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| February marked a return to drier-than-normal conditions for the Pacific Northwest after two above-normal months. The West region experienced a second consecutive drier-than-normal month. With the exception of a wet December and near-normal November, every month since January 2002 averaged drier-than-normal for the West region. February was unusually wet for the Southwest region and parts of the central and northern Rockies. |
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| However, long-term deficits remained for much of the West, with several states ranking in the top ten driest category for March 2002-February 2003. Moderate to extreme drought still covered about two-thirds of the western U.S. (Rocky Mountains to west coast) at the end of February. These long-term drought conditions were reflected in below-average snow cover as monitored by snow course measurements, mountain SNOTEL station reports, and satellite observations, as well as by low reservoirs. The winter mountain snowpack is the source of spring meltwater which fills western reservoirs and is used for irrigation during the spring and summer growing seasons. As noted by the USDA Natural Resources Conservation Service, the below-average snowpack is expected to result in below-average streamflow during the spring and summer. |
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A detailed review of drought conditions is available for several western states and regions.
Central U.S. Drought
| Although parts of the North Central U.S. received precipitation during February, much of the area from the Great Lakes to the northern Plains had a drier than average month. This month marked the fourth consecutive dry month for the East North Central region, which experienced the driest November-February on record. Several North Central states had the driest November-February or driest winter (December-February) on record. |
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The dryness has significantly depleted soil moisture from the central Plains to the Great Lakes. This is evident in modeled soil moisture departures as computed by the NOAA Climate Prediction Center and the Midwest Regional Climate Center at both the top soil layers and deeper layers.
February precipitation was near-normal when averaged across the West North Central region. However, the last four months gave the region a rank of fifth driest November-February and the long-term deficits rank March-February as the tenth driest such 12-month period. Media reports (CNN.com) have illustrated the impact of the drought:
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| A detailed review of drought conditions is available for several central U.S. states and regions. |
Eastern U.S. Drought|
This month saw a return to wet conditions across much of the eastern U.S., with only a few pockets of drought remaining. February averaged near normal across Maine, but dryness in both the short- and long-term gave the state the eighth driest January-February, fifth driest August-February, and 25th driest March-February in the 109-year record. Long-term moisture deficits remained over the Carolinas and Georgia at the 24-month timescale.
A detailed review of drought conditions is available for several eastern states and regions. |
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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:
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. |
For all climate questions other than questions concerning this report, please contact the National Climatic Data Center's Climate Services Division:
Climate Services DivisionFor further information on the historical climate perspective presented in this report, contact:
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
Richard Heim-or-
NOAA/National Climatic Data Center
151 Patton Avenue
Asheville, NC 28801-5001
fax: 828-271-4328
email: Richard.Heim@noaa.gov
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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