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Picture of Cottonwood Creek At Seward, Ok 2006

DATA CENTER

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USGS Water Science Centers are located in each state.

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Oklahoma Drought News

Data and other aspects of the state moisture situation can be found in the Oklahoma Water Resources Bulletin, "Summary of Current Conditions" (Courtesy of Oklahoma Water Resources Board).

A variety of drought indicators can be used including precipitation, streamflow, ground-water levels, reservoir storage and the Palmer Index.

The streamflow plots (hydrographs) at the following six U.S. Geological Survey streamflow-gaging stations are indicators of the drought conditions in Oklahoma. The present streamflows are compared with the median flows of record, which are a good index of the expected streamflow conditions.

Map of Oklahoma Index Gages
Station NumberStation NameRegion
Surface-water stations
7158000 Cimarron River near Waynoka Northwest
07197000 Baron Fork at Eldon Northeast
07229200 Canadian River at Purcell Central
07301500 North Fork Red River near Carter Southwest
07331000 Washita River near Dickson South-central
07337900 Glover River near Glover Southeast
Groundwater stations
363033101440701 Texhoma well Panhandle
351308098341601 Alfalfa wellSouthwest
355510096293501 Creek County well Central
343457096404501 Fittstown well South-central
The National Drought Mitigation Center (NDMC), at the University of Nebraska-Lincoln, helps people and institutions develop and implement measures to reduce societal vulnerability to drought. There are several links to sites of interest. A suite of Standardized Precipitation Index (SPI) maps is generated each month for different time scales, based on preliminary data from the National Climatic Data Center and initial analysis from the Western Regional Climate Center. The SPI, more sensitive than the PDSI, provides a comparison of precipitation over a specified period with precipitation totals from that same period for all years in the historical record.

Included on the NDMC page is a link to the U.S. Drought Monitor which is a drought monitoring effort between the NDMC, U.S. Department of Agriculture, and NOAA.

The monthly Palmer Drought Severity Index (PDSI) and precipitation for each of the Oklahoma Climatic Divisions can be seen at the National Climatic Data Center Climate Visualization System (CLIMVIS).

The Oklahoma Climatological Survey at the University of Oklahoma, has Oklahoma Summary Precipitation Statistics and Oklahoma Climatological Data available. Oklahoma Rainfall Update.

USGS GroundwaterWatch has current water resources conditions for selected wells, including a Below Normal Groundwater Levels Map that shows current conditions for long-term groundwater wells hydrologic drought hydrologic drought information for Oklahoma.

USGS WaterWatch has current water resources conditions, including a Drought Watch Map that shows the following hydrologic drought information for Oklahoma.

OKLAHOMA BELOW NORMAL GROUNDWATER LEVELS
below normal groundwater-level map for Oklahoma
grounwater-level map explanation
MAP OF BELOW NORMAL 7-DAY AVERAGE STREAMFLOW
COMPARED TO HISTORICAL STREAMFLOW FOR THE DAY OF THE YEAR
below normal streamflow map for Oklahoma
EXPLANATION
* Below
Normal
10th-24th
percentile
* Moderate
Hydrologic
Drought
6th-9th
percentile
* Severe
Hydrologic
Drought
<5th
percentile
*

Extreme
Hydrologic
Drought

lowest
7-day flow
* Not ranked  


MAP OF BELOW NORMAL 7-DAY AVERAGE STREAMFLOW
COMPARED TO HISTORICAL STREAMFLOW FOR THE DAY OF THE YEAR
Below normal streamflow map for Oklahoma
EXPLANATION
Below
Normal
10th-24th
percentile
Moderate
Hydrologic
Drought
6th-9th
percentile
Severe
Hydrologic
Drought
<5th
percentile

Extreme
Hydrologic
Drought

lowest
7-day flow
Not ranked  



The first "Below Normal Streamflow Map" shows the average streamflow conditions for the past 7 days, highlighting locations in Oklahoma that are experiencing low flows or hydrologic drought.

The second "Below Normal Streamflow Map" shows the 7-day average streamflow conditions in the hydrologic units of Oklahoma for the day of year, highlighting locations that are experiencing low flows or hydrologic drought.

The maps depict 7-day average streamflow conditions as computed at USGS gaging stations. The colors represent 7-day average streamflow compared to percentiles of 7-day average streamflow for the day of the year. The maps represent conditions adjusted for this time of the year. Only stations having at least 30 years of record are used. By averaging over past 7 days, the values on the map are more indicative of longer-term streamflow conditions than either the "Real-time streamflow" or the "Daily streamflow" maps.

During winter months, parts of the state may have fewer dots than at other times of the year due to ice effects.

The data used to produce this map are provisional and have not been reviewed or edited. They may be subject to significant change.

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Page Last Modified: Friday, 10-Feb-2017 10:04:31 EST