Water Resources of the United States

PROJECT ALERT NOTICE (NE) Nebraska Drought Update

Date: Thu, 30 Aug 2012 17:00:00 EDT

Summary: Persistent drought conditions continue throughout Nebraska, with no decrease in severity. USGS crews have continued to provide additional time and effort in monitoring low-flows, acquiring GZFs (gage heights of zero-flow) and streamgage maintenance activities.

Event Information: Hydrologic Conditions: Drought conditions deepened slightly throughout Nebraska this past week. The U.S. Drought Monitor currently shows 100 percent of the state in Severe Drought, with 97 percent of the state in Extreme Drought status (down by one percent from last week) and 23 percent in the Exceptional status category (up by one percent from last week).
Fifteen USGS streamgages in Nebraska are at zero flow. Of 60 long-term USGS streamgages (>30 years record) in Nebraska, 13 (or 22 percent) are at no flow (no change from last week). Twenty-two percent of the long-term gages are equal to or exceed the 7-day low-flow average record for Nebraska. Flow is returning to the dry sections of the Platte River as surface-water irrigation demands are reduced due to the end of the growing season. About two-thirds of Nebraska received zero to less than one-half inch of rainfall this past week. The southeast third of the state received approximately zero to four inches of rain. Water restrictions continue to be widespread throughout the state. The number of public water utilities issuing either voluntary or mandatory water-use restrictions jumped from 69 in July to 81 during the month of August. Streamgages
Four USGS NEWSC field crews continued to make additional low-flow measurements, extend and repair pressure lines, and verify GZFs at more than 10 streamgages and made 24 extra streamflow measurements over the past week (about 205 extra measurements over the past 7 weeks). Crews are currently making 2 measurements per week at the Elkhorn River at Waterloo, Platte River at Ashland, Platte River at Venice, and Platte River at Louisville, with increased frequency of visits to the Platte River at Duncan, North Bend, and Overton and the Loup River at Genoa, all key forecast points for Omaha and Lincoln Municipal Water Systems. Lincoln and Omaha get most of their drinking water from well fields in and adjacent to the lower Platte River and depend upon adequate streamflow in the river for their supply.
NEWSC has completed 3 additional low-end rating extensions this past week for a total of 32 across the state in the past 7 weeks. Groundwater levels
GroundwaterWatch shows more than half of the Nebraska real-time groundwater observation wells in the Below Normal, Much Below Normal, or Low (new low) categories. The GroundwaterWatch water-level network readings were mostly completed in the spring before the onset of the drought. The City of Lincoln municipal well field on the Platte River is approaching operational limits and is currently more stressed than during the 2002 drought. USGS crews continue to take weekly groundwater level readings (typically monthly) at about 20 wells. Several Natural Resources Districts (NRDs) are reporting that some domestic wells and irrigation wells are going dry and are concerned about municipal supplies. One Native American Tribe has also reported dry domestic wells. One NRD is providing emergency assistance to homeowners with well repairs and replacements, or providing drinking water. Several communities are also reporting domestic water problems. Water quality
The USGS Nebraska Water Science Center continues normal operation of a network of stream temperature stations, and several multi-parameter water-quality stations. In the past week, no water-quality issues have arisen that differ from previous updates. Special projects
None. Communications and outreach
The NEWSC drought page has been updated and expanded at http://ne.water.usgs.gov/drought/. A drought information message has been created and provided to all field staff to provide USGS information to the public and for media requests. USGS staff have answered numerous media requests for drought information to date (none within the past week). A WWW page is available. The URL is: http://ne.water.usgs.gov/drought/ Twitter. @USGSNeb No news release is planned, but we have been using our landing page of http://ne.water.usgs.gov to provide updates and link to the drought page. We are also using Twitter to post drought photos and facts as available. OK to post on Web: yes
A WWW page is available, the URL is: http://ne.water.usgs.gov/drought/ A News release is planned. It will be emailed to GS-W_Project_Alert@usgs.gov.
Storm Surge
no Submitted by: Rachael Hoagland (hoagland@usgs.gov) 402.328.4190 Sub-Region: Midwest; Region: Central United States

Sub-Region: Midwest; Region: Central United States

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