Arizona Drought Monitoring Technical Committee
The Monitoring Technical Committee is responsible for gathering data about Arizona drought, climate, and weather; producing drought status reports; and disseminating that information to land managers, policy-makers, and the public.
Arizona State University, http://azclimate.asu.edu/
Mark O'Malley, National Weather Service, http://www.wrh.noaa.gov/psr/
Mike Crimmins, University of Arizona Cooperative Extension, http://cals.arizona.edu/climate
Charlie Ester, Salt River Project, http://www.srpnet.com
Dino DeSimone, Natural Resources Conservation Service, http://www.az.nrcs.usda.gov/snow/
Gregg Garfin, University of Arizona -
Institute for the Study of Planet Earth
Arizona Division of Emergency Management
Chris Smith, U.S. Geological Survey, http://az.water.usgs.gov/drought
Long-term Drought Status Update: April - June 2014
Spring was typically dry across the state, and all watersheds except the lower Colorado River saw no change in their long-term drought status. The lower Colorado River watershed dropped from no drought to abnormally dry.
Even though dry conditions are normal for spring, the deficits are mounting. BLM observations include dirt tanks going dry earlier than usual, a decrease in perennial grasses not related to grazing, and die back of creosote bush and ironweed trees in the southeastern part of the state. State parks report low lake levels at Lyman Lake, Fool Hollow, Patagonia Lake and Alamo Lake.
Further degradation is likely unless the monsoon precipitation meets or exceeds the long term average.
The next update in early November will reflect the monsoon conditions of July, August and September.
Posted August 8, 2014
The Monitoring Technical Committee meets quarterly to discuss drought conditions throughout the state and produce the long-term drought status map. Long- term drought status for each watershed is determined by comparing the precipitation and streamflow percentiles for the past 24, 36 and 48 months to a 40-year historical record.
Method for Determining Long-term Drought Status
Method for Determining Drought Categories
When Adjacent Watersheds Differ by Two or More Categories
PAST DROUGHT STATUS REPORTS
Click here if you would like to receive monthly drought status reports by email.