Drought: It Ain’t Over       Till It’s Over…          Robert E. Mace, Ph.D., P.G.           Texas Water Development Boardp...
or…      The Drought Ain’t Over Until      John Nielsen-Gammon Sings
Drought categories with time100 90 80 70 60 50 40 30 20 10  0
Drought categories with time100 90 80 70 60 50 40 30 20 10  0
RESERVOIR CONSERVATION STORAGE DATA                              (          )                              -1% from last  ...
Reservoir Storage by Climatic Region (% Full)                                           (Change from 5/30/2012)           ...
“Lake” Meredith (Texas share)
O.H. Ivie Reservoir
Lake Brownwood
Lake Travis
Falcon Reservoir (Texas share)
Total storage in Elephant Butte ~ 2,000,000 acre-feet (totalstorage in Caballo varies during the year from ~350,000acre-fe...
April 1-30, 2012                        30-Day Precipitation             86%                                              ...
Streamflow Index30-day Mean Flow Conditions
Groundwater Level in J-17 Well         Stage 1         Stage 2         Stage 3http://www.saws.org/our_water/aquifer/
Public Water Supply              Systems Affected by                    Drought                           June 6, 2012Tota...
El Nino/La Nina:     50% chance of El Nino 2nd half 2012
Demand v. Supply                                Demand for waterAcre-feet                               Water we have now
Robert E. Mace, Ph.D., P.G.           Texas Water Development Boardpresented to the Texas Water Conservation Association  ...
Drought: It Ain't Over Till It's Over
Drought: It Ain't Over Till It's Over
Drought: It Ain't Over Till It's Over
Drought: It Ain't Over Till It's Over
Drought: It Ain't Over Till It's Over
Drought: It Ain't Over Till It's Over
Drought: It Ain't Over Till It's Over
Upcoming SlideShare
Loading in...5
×

Drought: It Ain't Over Till It's Over

889

Published on

Presentation at the TWCA mid year conference 2012 www.twca.org

Robert E. Mace, Ph.D., P.G.
Texas Water Development Board
presented to the Texas Water Conservation Association
Horseshoe Bay, Texas, June 15, 2012

Published in: Education, Technology, Business
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
889
On Slideshare
0
From Embeds
0
Number of Embeds
6
Actions
Shares
0
Downloads
3
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide
  • This graph shows our demand for water compared to water we have now under drought of record conditions. So are we ready for the next drought of record? [click] “nope…” The bad news: we’re not ready. We’re not ready now, and we get less readier [sic] in the future. Note: Water we have now is water with current infrastructure, i.e. no additional wells, reservoirs, pipelines, etc. Note: Decreases in “Water we have now” are due primarily to mining water from the Ogalalla but also due to decreases in other aquifers and sedimentation of our reservoirs.
  • Drought: It Ain't Over Till It's Over

    1. 1. Drought: It Ain’t Over Till It’s Over… Robert E. Mace, Ph.D., P.G. Texas Water Development Boardpresented to the Texas Water Conservation Association Horseshoe Bay, Texas, June 15, 2012
    2. 2. or… The Drought Ain’t Over Until John Nielsen-Gammon Sings
    3. 3. Drought categories with time100 90 80 70 60 50 40 30 20 10 0
    4. 4. Drought categories with time100 90 80 70 60 50 40 30 20 10 0
    5. 5. RESERVOIR CONSERVATION STORAGE DATA ( ) -1% from last week
    6. 6. Reservoir Storage by Climatic Region (% Full) (Change from 5/30/2012) (+0.03%) (+0.14%) (-0.37%) (-0.71%) (-0.11%) (-0.20%) (-0.40%) (-1.77%) (-1.05%)
    7. 7. “Lake” Meredith (Texas share)
    8. 8. O.H. Ivie Reservoir
    9. 9. Lake Brownwood
    10. 10. Lake Travis
    11. 11. Falcon Reservoir (Texas share)
    12. 12. Total storage in Elephant Butte ~ 2,000,000 acre-feet (totalstorage in Caballo varies during the year from ~350,000acre-feet to 50,000 acre-feet)
    13. 13. April 1-30, 2012 30-Day Precipitation 86% Percentage of Normal 60% May 1-30, 2012 45% 74% 99% 38% 60% 42% 101% 44% 55% 51% 47% Percentage of Normal 48% 0%-19% 20%-39% 204% 137% 40%-59% 60%-79% 80%-99% 105% 100%-119% 72% >120% 105% 73%http:// www.southernclimate.org/products/precip.php
    14. 14. Streamflow Index30-day Mean Flow Conditions
    15. 15. Groundwater Level in J-17 Well Stage 1 Stage 2 Stage 3http://www.saws.org/our_water/aquifer/
    16. 16. Public Water Supply Systems Affected by Drought June 6, 2012Total number of Community water systems affected: 1009Total number of active Community water systems in Texas: 4699 RESOLVED (1) WATCH – Voluntary (417) WATCH – Mandatory (592)http://www.tceq.state.tx.us/permitting/water_supply/pdw/trot/location.html
    17. 17. El Nino/La Nina: 50% chance of El Nino 2nd half 2012
    18. 18. Demand v. Supply Demand for waterAcre-feet Water we have now
    19. 19. Robert E. Mace, Ph.D., P.G. Texas Water Development Boardpresented to the Texas Water Conservation Association Horseshoe Bay, Texas, June 15, 2012
    1. A particular slide catching your eye?

      Clipping is a handy way to collect important slides you want to go back to later.

    ×