Drought Information Statement
Issued by NWS Brownsville, TX

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Drought Information Statement
National Weather Service Brownsville TX
110 AM CDT Tue Aug 15 2017

...Moderate drought conditions continue across portions of Hidalgo
County...

.SYNOPSIS...

Rainfall was below normal across most of the Rio Grande valley and
northern ranchlands during the month of July. Rainfall was above
normal across portions of Willacy...Brooks and Zapata counties.
During the last 90 days...deep South Texas has received anywhere
from 75 to 150 percent of their normal rainfall except across
portions of Hidalgo county where 25 to 75 percent of normal rainfall
fell.

According to the latest United States Drought Monitor...moderate
(D1) drought conditions were across southern portions of
Hidalgo county. Abnormally dry conditions (D0) were across most of
Starr and Jim Hogg counties...the central portions of Hidalgo county
and western portions of Cameron county. Drought conditions across
deep South Texas are affecting mainly agricultural interests and
grasslands.

SUMMARY OF IMPACTS...

FIRE DANGER IMPACTS.

According to the National Interagency Fire Center, the potential for
significant wildland fires is below normal for the area. The latest
Fire Danger Map from the Texas Inter-Agency Coordination Center
(TICC) on August 13th indicates a moderate fire danger over most of
the area except for high across most of Starr county. The latest
Beech-Byram Drought Indices (KBDI) were 400 to 500 over Kenedy,
Willacy, Jim Hogg, Brooks and Zapata counties. KBDI`s of 500 to 600
were over Cameron and Starr counties. KBDI`s of 600 to 700 were over
Hidalgo county. County burn bans are currently in effect for Zapata,
Jim Hogg, Brooks, Starr and Willacy counties. Residents are urged to
take extra precautions when conducting any outside burning, and
should contact county officials for any scheduled burning. Residents
are also reminded that fire danger can change quickly from one day
to another as winds and relative humidity values vary.

AGRICULTURAL IMPACTS.

According to the United States Department of Agriculture and Texas
Agrilife Extension Service Agents...pasture and rangeland conditions
were poor but recent rainfall should help. Supplemental feeding
increased as body condition scores on cattle declined a bit. The
live cattle market suffered a little the past few weeks but nothing
major. Some cotton fields were in the boll opening stage and were
being irrigated. Some cotton harvests were in full swing and yield
reports varied from 600 to 1200 pounds per acre. Sorghum harvests
were winding down.

WATER RESTRICTIONS.

According to the Texas Commission of Environmental Quality
(TCEQ)...there are currently 31 cities or water supply entities that
are under voluntary or mandatory water restrictions. There are 7
Public Water Supply entities in Cameron county, 13 in Hidalgo
county, 6 in Starr county, 3 in Zapata county and 2 in Willacy
county. All water users are urged to conserve water.

CLIMATE SUMMARY...

Overall, July 2017 brought near normal to above normal temperatures
and below normal rainfall across most of deep South Texas, except
across portions of Willacy, Brooks and Zapata counties where above
normal rainfall fell.

Current rainfall to date for the month of August at Brownsville is
0.97 inches or 0.12 inches above normal. Year to date rainfall is
12.63 inches or 0.59 inches below normal.

Current rainfall to date for the month of August at Harlingen is
0.60 inches or 0.16 inches above normal. Year to date rainfall is
11.73 inches or 1.06 inches below normal.

Current rainfall to date for the month of August at McAllen is 0.55
inches or 0.12 inches below normal. Year to date rainfall is 6.78
inches or 5.25 inches below normal.

PRECIPITATION/TEMPERATURE OUTLOOK...

Meteorological outlook...August 16th through August 21st...An upper
level ridge of high pressure across the southeast United States will
move westward across the state of Texas August 18th into the 19th.
An inverted upper level trough of low pressure is expected to move
into the western Gulf of Mexico the 20th into the 21st. Seabreeze
showers and thunderstorms will develop across the coastal sections
of deep South Texas on the 21st. Temperatures will be near normal to
above normal from the 16th through the 21st. Overall average
temperatures will be above normal from August 20th through August
24th for late August.

Rainfall totals will generally be less than a tenth of an inch
across portions of deep South Texas through August 21st. Overall
average rainfall will be below normal from August 20th through
August 24th. Any rainfall that occurs in the southern portions of
Hidalgo county through the rest of August will provide some drought
relief for the area.

The long range climate outlook for deep South Texas through October
2017...derived from guidance from the National Weather Service and
the Climate Prediction Center...indicates that generally above
normal temperatures and above normal rainfall will be expected for
deep South Texas through the rest of the Summer of 2017 into the
Fall of 2017. At this time...the potential for drought conditions
ending through October 2017 is low to moderate.

Any rainfall that affects deep south Texas through October 2017 will
provide drought relief from the current drought conditions.

HYDROLOGIC SUMMARY AND OUTLOOK...

According to the Texas Water Development Board (TDWB)...the current
Texas water share at Falcon Reservoir has decreased during the past
four weeks to 24.6 percent. This is a lowering from a previous level
of 34.1 percent three months ago. The Texas water share at Falcon at
this time last year was at 32.4 percent. The current Texas water
share at Amistad Reservoir has decreased during the past four weeks
to 74.0 percent. This is a lowering from a previous level of 75.9
percent three months ago. The Texas water share at Amistad at this
time last year was at 74.1 percent. The reservoirs at Falcon and
Amistad provide much of the water for the Rio Grande valley.
Residents, including growers and ranchers of the lower Rio Grande
valley are urged to take all necessary steps to conserve water.

NEXT ISSUANCE DATE...

The next Drought Information Statement will be issued around
Tuesday, September 12th, 2017.

RELATED WEB SITES...

For additional information...and the latest weather forecast for
deep South Texas...visit our website at www.weather.gov/rgv. You may
also visit the National Weather Service Climate Prediction Center
website at www.cpc.ncep.noaa.gov and get the latest information on
reservoir levels from the International Boundary and Water
Commission (IBWC) at www.ibwc.gov.

Additional web sites:

NWS BROWNSVILLE DROUGHT PAGE:
http://www.weather.gov/bro/drought

NWS BROWNSVILLE Advanced Hydrologic Prediction Service (AHPS):
http://water.weather.gov/ahps2/index.php?wfo=bro

U.S. Drought Monitor:
http://droughtmonitor.unl.edu

U.S. Drought Portal:
http://www.drought.gov

National Drought Mitigation Center:
http://drought.unl.edu

Texas Water Development Board Reservoir Website:
https://waterdatafortexas.org/reservoirs/statewide

Texas Interagency Coordination Center (TICC):
http://ticc.tamu.edu

Texas Commission on Environmental Quality (water restrictions):
www.tceq.texas.gov/drinkingwater/trot/location.html

ACKNOWLEDGMENTS...

The Drought Monitor is a multi-agency effort involving NOAA`s
National Weather Service and National Centers for Environmental
Information...the USDA...state and regional center climatologists
and the National Drought Mitigation Center. Information for this
statement has been gathered from NWS and FAA observation sites...the
USDA...state Agrilife Extension Service District agents, Texas Inter-
agency Coordination Center, Texas Forest Service, state and federal
wildlife departments Texas Commission on Environmental Quality
(TCEQ), Texas Water Development Board (TWDB) and the International
Boundary and Water Commission (IBWC).

QUESTIONS OR COMMENTS...

If you have any questions or comments about this drought information
statement...please contact...

National Weather Service
20 South Vermillion Road
Brownsville, TX
Phone: 956-504-1432
Email: sr-bro.webmaster@noaa.gov

$$

Castillo



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